1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/soc/tegra/pmc.c
5 * Copyright (c) 2010 Google, Inc
6 * Copyright (c) 2018-2023, NVIDIA CORPORATION. All rights reserved.
9 * Colin Cross <ccross@google.com>
12 #define pr_fmt(fmt) "tegra-pmc: " fmt
14 #include <linux/arm-smccc.h>
15 #include <linux/clk.h>
16 #include <linux/clk-provider.h>
17 #include <linux/clkdev.h>
18 #include <linux/clk/clk-conf.h>
19 #include <linux/clk/tegra.h>
20 #include <linux/debugfs.h>
21 #include <linux/delay.h>
22 #include <linux/device.h>
23 #include <linux/err.h>
24 #include <linux/export.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
28 #include <linux/iopoll.h>
29 #include <linux/irqdomain.h>
30 #include <linux/irq.h>
31 #include <linux/kernel.h>
32 #include <linux/of_address.h>
33 #include <linux/of_clk.h>
35 #include <linux/of_irq.h>
36 #include <linux/of_platform.h>
37 #include <linux/pinctrl/pinconf-generic.h>
38 #include <linux/pinctrl/pinconf.h>
39 #include <linux/pinctrl/pinctrl.h>
40 #include <linux/platform_device.h>
41 #include <linux/pm_domain.h>
42 #include <linux/pm_opp.h>
43 #include <linux/power_supply.h>
44 #include <linux/reboot.h>
45 #include <linux/regmap.h>
46 #include <linux/reset.h>
47 #include <linux/seq_file.h>
48 #include <linux/slab.h>
49 #include <linux/spinlock.h>
50 #include <linux/syscore_ops.h>
52 #include <soc/tegra/common.h>
53 #include <soc/tegra/fuse.h>
54 #include <soc/tegra/pmc.h>
56 #include <dt-bindings/interrupt-controller/arm-gic.h>
57 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
58 #include <dt-bindings/gpio/tegra186-gpio.h>
59 #include <dt-bindings/gpio/tegra194-gpio.h>
60 #include <dt-bindings/gpio/tegra234-gpio.h>
61 #include <dt-bindings/soc/tegra-pmc.h>
64 #define PMC_CNTRL_INTR_POLARITY BIT(17) /* inverts INTR polarity */
65 #define PMC_CNTRL_CPU_PWRREQ_OE BIT(16) /* CPU pwr req enable */
66 #define PMC_CNTRL_CPU_PWRREQ_POLARITY BIT(15) /* CPU pwr req polarity */
67 #define PMC_CNTRL_SIDE_EFFECT_LP0 BIT(14) /* LP0 when CPU pwr gated */
68 #define PMC_CNTRL_SYSCLK_OE BIT(11) /* system clock enable */
69 #define PMC_CNTRL_SYSCLK_POLARITY BIT(10) /* sys clk polarity */
70 #define PMC_CNTRL_PWRREQ_POLARITY BIT(8)
71 #define PMC_CNTRL_BLINK_EN 7
72 #define PMC_CNTRL_MAIN_RST BIT(4)
74 #define PMC_WAKE_MASK 0x0c
75 #define PMC_WAKE_LEVEL 0x10
76 #define PMC_WAKE_STATUS 0x14
77 #define PMC_SW_WAKE_STATUS 0x18
78 #define PMC_DPD_PADS_ORIDE 0x1c
79 #define PMC_DPD_PADS_ORIDE_BLINK 20
81 #define DPD_SAMPLE 0x020
82 #define DPD_SAMPLE_ENABLE BIT(0)
83 #define DPD_SAMPLE_DISABLE (0 << 0)
85 #define PWRGATE_TOGGLE 0x30
86 #define PWRGATE_TOGGLE_START BIT(8)
88 #define REMOVE_CLAMPING 0x34
90 #define PWRGATE_STATUS 0x38
92 #define PMC_BLINK_TIMER 0x40
93 #define PMC_IMPL_E_33V_PWR 0x40
95 #define PMC_PWR_DET 0x48
97 #define PMC_SCRATCH0_MODE_RECOVERY BIT(31)
98 #define PMC_SCRATCH0_MODE_BOOTLOADER BIT(30)
99 #define PMC_SCRATCH0_MODE_RCM BIT(1)
100 #define PMC_SCRATCH0_MODE_MASK (PMC_SCRATCH0_MODE_RECOVERY | \
101 PMC_SCRATCH0_MODE_BOOTLOADER | \
102 PMC_SCRATCH0_MODE_RCM)
104 #define PMC_CPUPWRGOOD_TIMER 0xc8
105 #define PMC_CPUPWROFF_TIMER 0xcc
106 #define PMC_COREPWRGOOD_TIMER 0x3c
107 #define PMC_COREPWROFF_TIMER 0xe0
109 #define PMC_PWR_DET_VALUE 0xe4
111 #define PMC_USB_DEBOUNCE_DEL 0xec
112 #define PMC_USB_AO 0xf0
114 #define PMC_SCRATCH37 0x130
115 #define PMC_SCRATCH41 0x140
117 #define PMC_WAKE2_MASK 0x160
118 #define PMC_WAKE2_LEVEL 0x164
119 #define PMC_WAKE2_STATUS 0x168
120 #define PMC_SW_WAKE2_STATUS 0x16c
122 #define PMC_CLK_OUT_CNTRL 0x1a8
123 #define PMC_CLK_OUT_MUX_MASK GENMASK(1, 0)
124 #define PMC_SENSOR_CTRL 0x1b0
125 #define PMC_SENSOR_CTRL_SCRATCH_WRITE BIT(2)
126 #define PMC_SENSOR_CTRL_ENABLE_RST BIT(1)
128 #define PMC_RST_STATUS_POR 0
129 #define PMC_RST_STATUS_WATCHDOG 1
130 #define PMC_RST_STATUS_SENSOR 2
131 #define PMC_RST_STATUS_SW_MAIN 3
132 #define PMC_RST_STATUS_LP0 4
133 #define PMC_RST_STATUS_AOTAG 5
135 #define IO_DPD_REQ 0x1b8
136 #define IO_DPD_REQ_CODE_IDLE (0U << 30)
137 #define IO_DPD_REQ_CODE_OFF (1U << 30)
138 #define IO_DPD_REQ_CODE_ON (2U << 30)
139 #define IO_DPD_REQ_CODE_MASK (3U << 30)
141 #define IO_DPD_STATUS 0x1bc
142 #define IO_DPD2_REQ 0x1c0
143 #define IO_DPD2_STATUS 0x1c4
144 #define SEL_DPD_TIM 0x1c8
146 #define PMC_UTMIP_UHSIC_TRIGGERS 0x1ec
147 #define PMC_UTMIP_UHSIC_SAVED_STATE 0x1f0
149 #define PMC_UTMIP_TERM_PAD_CFG 0x1f8
150 #define PMC_UTMIP_UHSIC_SLEEP_CFG 0x1fc
151 #define PMC_UTMIP_UHSIC_FAKE 0x218
153 #define PMC_SCRATCH54 0x258
154 #define PMC_SCRATCH54_DATA_SHIFT 8
155 #define PMC_SCRATCH54_ADDR_SHIFT 0
157 #define PMC_SCRATCH55 0x25c
158 #define PMC_SCRATCH55_RESET_TEGRA BIT(31)
159 #define PMC_SCRATCH55_CNTRL_ID_SHIFT 27
160 #define PMC_SCRATCH55_PINMUX_SHIFT 24
161 #define PMC_SCRATCH55_16BITOP BIT(15)
162 #define PMC_SCRATCH55_CHECKSUM_SHIFT 16
163 #define PMC_SCRATCH55_I2CSLV1_SHIFT 0
165 #define PMC_UTMIP_UHSIC_LINE_WAKEUP 0x26c
167 #define PMC_UTMIP_BIAS_MASTER_CNTRL 0x270
168 #define PMC_UTMIP_MASTER_CONFIG 0x274
169 #define PMC_UTMIP_UHSIC2_TRIGGERS 0x27c
170 #define PMC_UTMIP_MASTER2_CONFIG 0x29c
172 #define GPU_RG_CNTRL 0x2d4
174 #define PMC_UTMIP_PAD_CFG0 0x4c0
175 #define PMC_UTMIP_UHSIC_SLEEP_CFG1 0x4d0
176 #define PMC_UTMIP_SLEEPWALK_P3 0x4e0
177 /* Tegra186 and later */
178 #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2))
179 #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3)
180 #define WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN (1 << 1)
181 #define WAKE_AOWAKE_MASK_W(x) (0x180 + ((x) << 2))
182 #define WAKE_AOWAKE_MASK_R(x) (0x300 + ((x) << 2))
183 #define WAKE_AOWAKE_STATUS_W(x) (0x30c + ((x) << 2))
184 #define WAKE_AOWAKE_STATUS_R(x) (0x48c + ((x) << 2))
185 #define WAKE_AOWAKE_TIER0_ROUTING(x) (0x4b4 + ((x) << 2))
186 #define WAKE_AOWAKE_TIER1_ROUTING(x) (0x4c0 + ((x) << 2))
187 #define WAKE_AOWAKE_TIER2_ROUTING(x) (0x4cc + ((x) << 2))
188 #define WAKE_AOWAKE_SW_STATUS_W_0 0x49c
189 #define WAKE_AOWAKE_SW_STATUS(x) (0x4a0 + ((x) << 2))
190 #define WAKE_LATCH_SW 0x498
192 #define WAKE_AOWAKE_CTRL 0x4f4
193 #define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0)
195 #define SW_WAKE_ID 83 /* wake83 */
198 #define TEGRA_SMC_PMC 0xc2fffe00
199 #define TEGRA_SMC_PMC_READ 0xaa
200 #define TEGRA_SMC_PMC_WRITE 0xbb
209 #define to_pmc_clk(_hw) container_of(_hw, struct pmc_clk, hw)
211 struct pmc_clk_gate {
217 #define to_pmc_clk_gate(_hw) container_of(_hw, struct pmc_clk_gate, hw)
219 struct pmc_clk_init_data {
221 const char *const *parents;
228 static const char * const clk_out1_parents[] = { "osc", "osc_div2",
229 "osc_div4", "extern1",
232 static const char * const clk_out2_parents[] = { "osc", "osc_div2",
233 "osc_div4", "extern2",
236 static const char * const clk_out3_parents[] = { "osc", "osc_div2",
237 "osc_div4", "extern3",
240 static const struct pmc_clk_init_data tegra_pmc_clks_data[] = {
242 .name = "pmc_clk_out_1",
243 .parents = clk_out1_parents,
244 .num_parents = ARRAY_SIZE(clk_out1_parents),
245 .clk_id = TEGRA_PMC_CLK_OUT_1,
250 .name = "pmc_clk_out_2",
251 .parents = clk_out2_parents,
252 .num_parents = ARRAY_SIZE(clk_out2_parents),
253 .clk_id = TEGRA_PMC_CLK_OUT_2,
255 .force_en_shift = 10,
258 .name = "pmc_clk_out_3",
259 .parents = clk_out3_parents,
260 .num_parents = ARRAY_SIZE(clk_out3_parents),
261 .clk_id = TEGRA_PMC_CLK_OUT_3,
263 .force_en_shift = 18,
267 struct tegra_powergate {
268 struct generic_pm_domain genpd;
269 struct tegra_pmc *pmc;
272 unsigned int num_clks;
273 unsigned long *clk_rates;
274 struct reset_control *reset;
277 struct tegra_io_pad_soc {
278 enum tegra_io_pad id;
280 unsigned int request;
282 unsigned int voltage;
286 struct tegra_pmc_regs {
287 unsigned int scratch0;
288 unsigned int rst_status;
289 unsigned int rst_source_shift;
290 unsigned int rst_source_mask;
291 unsigned int rst_level_shift;
292 unsigned int rst_level_mask;
295 struct tegra_wake_event {
300 unsigned int instance;
305 #define TEGRA_WAKE_SIMPLE(_name, _id) \
311 .instance = UINT_MAX, \
316 #define TEGRA_WAKE_IRQ(_name, _id, _irq) \
322 .instance = UINT_MAX, \
327 #define TEGRA_WAKE_GPIO(_name, _id, _instance, _pin) \
333 .instance = _instance, \
338 struct tegra_pmc_soc {
339 unsigned int num_powergates;
340 const char *const *powergates;
341 unsigned int num_cpu_powergates;
342 const u8 *cpu_powergates;
344 bool has_tsense_reset;
346 bool needs_mbist_war;
347 bool has_impl_33v_pwr;
350 const struct tegra_io_pad_soc *io_pads;
351 unsigned int num_io_pads;
353 const struct pinctrl_pin_desc *pin_descs;
354 unsigned int num_pin_descs;
356 const struct tegra_pmc_regs *regs;
357 void (*init)(struct tegra_pmc *pmc);
358 void (*setup_irq_polarity)(struct tegra_pmc *pmc,
359 struct device_node *np,
361 void (*set_wake_filters)(struct tegra_pmc *pmc);
362 int (*irq_set_wake)(struct irq_data *data, unsigned int on);
363 int (*irq_set_type)(struct irq_data *data, unsigned int type);
364 int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id,
367 const char * const *reset_sources;
368 unsigned int num_reset_sources;
369 const char * const *reset_levels;
370 unsigned int num_reset_levels;
373 * These describe events that can wake the system from sleep (i.e.
374 * LP0 or SC7). Wakeup from other sleep states (such as LP1 or LP2)
375 * are dealt with in the LIC.
377 const struct tegra_wake_event *wake_events;
378 unsigned int num_wake_events;
379 unsigned int max_wake_events;
380 unsigned int max_wake_vectors;
382 const struct pmc_clk_init_data *pmc_clks_data;
383 unsigned int num_pmc_clks;
384 bool has_blink_output;
385 bool has_usb_sleepwalk;
386 bool supports_core_domain;
390 * struct tegra_pmc - NVIDIA Tegra PMC
391 * @dev: pointer to PMC device structure
392 * @base: pointer to I/O remapped register region
393 * @wake: pointer to I/O remapped region for WAKE registers
394 * @aotag: pointer to I/O remapped region for AOTAG registers
395 * @scratch: pointer to I/O remapped region for scratch registers
396 * @clk: pointer to pclk clock
397 * @soc: pointer to SoC data structure
398 * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
399 * @rate: currently configured rate of pclk
400 * @suspend_mode: lowest suspend mode available
401 * @cpu_good_time: CPU power good time (in microseconds)
402 * @cpu_off_time: CPU power off time (in microsecends)
403 * @core_osc_time: core power good OSC time (in microseconds)
404 * @core_pmu_time: core power good PMU time (in microseconds)
405 * @core_off_time: core power off time (in microseconds)
406 * @corereq_high: core power request is active-high
407 * @sysclkreq_high: system clock request is active-high
408 * @combined_req: combined power request for CPU & core
409 * @cpu_pwr_good_en: CPU power good signal is enabled
410 * @lp0_vec_phys: physical base address of the LP0 warm boot code
411 * @lp0_vec_size: size of the LP0 warm boot code
412 * @powergates_available: Bitmap of available power gates
413 * @powergates_lock: mutex for power gate register access
414 * @pctl_dev: pin controller exposed by the PMC
415 * @domain: IRQ domain provided by the PMC
416 * @irq: chip implementation for the IRQ domain
417 * @clk_nb: pclk clock changes handler
418 * @core_domain_state_synced: flag marking the core domain's state as synced
419 * @core_domain_registered: flag marking the core domain as registered
420 * @wake_type_level_map: Bitmap indicating level type for non-dual edge wakes
421 * @wake_type_dual_edge_map: Bitmap indicating if a wake is dual-edge or not
422 * @wake_sw_status_map: Bitmap to hold raw status of wakes without mask
423 * @wake_cntrl_level_map: Bitmap to hold wake levels to be programmed in
424 * cntrl register associated with each wake during system suspend.
431 void __iomem *scratch;
434 const struct tegra_pmc_soc *soc;
439 enum tegra_suspend_mode suspend_mode;
448 bool cpu_pwr_good_en;
451 DECLARE_BITMAP(powergates_available, TEGRA_POWERGATE_MAX);
453 struct mutex powergates_lock;
455 struct pinctrl_dev *pctl_dev;
457 struct irq_domain *domain;
460 struct notifier_block clk_nb;
462 bool core_domain_state_synced;
463 bool core_domain_registered;
465 unsigned long *wake_type_level_map;
466 unsigned long *wake_type_dual_edge_map;
467 unsigned long *wake_sw_status_map;
468 unsigned long *wake_cntrl_level_map;
469 struct syscore_ops syscore;
472 static struct tegra_pmc *pmc = &(struct tegra_pmc) {
474 .suspend_mode = TEGRA_SUSPEND_NOT_READY,
477 static inline struct tegra_powergate *
478 to_powergate(struct generic_pm_domain *domain)
480 return container_of(domain, struct tegra_powergate, genpd);
483 static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset)
485 struct arm_smccc_res res;
488 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_READ, offset, 0, 0,
492 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
495 pr_warn("%s(): SMC failed: %lu\n", __func__,
502 return readl(pmc->base + offset);
505 static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value,
506 unsigned long offset)
508 struct arm_smccc_res res;
511 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_WRITE, offset,
512 value, 0, 0, 0, 0, &res);
515 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
518 pr_warn("%s(): SMC failed: %lu\n", __func__,
522 writel(value, pmc->base + offset);
526 static u32 tegra_pmc_scratch_readl(struct tegra_pmc *pmc, unsigned long offset)
529 return tegra_pmc_readl(pmc, offset);
531 return readl(pmc->scratch + offset);
534 static void tegra_pmc_scratch_writel(struct tegra_pmc *pmc, u32 value,
535 unsigned long offset)
538 tegra_pmc_writel(pmc, value, offset);
540 writel(value, pmc->scratch + offset);
544 * TODO Figure out a way to call this with the struct tegra_pmc * passed in.
545 * This currently doesn't work because readx_poll_timeout() can only operate
546 * on functions that take a single argument.
548 static inline bool tegra_powergate_state(int id)
550 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
551 return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0;
553 return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0;
556 static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id)
558 return (pmc->soc && pmc->soc->powergates[id]);
561 static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id)
563 return test_bit(id, pmc->powergates_available);
566 static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name)
570 if (!pmc || !pmc->soc || !name)
573 for (i = 0; i < pmc->soc->num_powergates; i++) {
574 if (!tegra_powergate_is_valid(pmc, i))
577 if (!strcmp(name, pmc->soc->powergates[i]))
584 static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id,
587 unsigned int retries = 100;
592 * As per TRM documentation, the toggle command will be dropped by PMC
593 * if there is contention with a HW-initiated toggling (i.e. CPU core
594 * power-gated), the command should be retried in that case.
597 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
599 /* wait for PMC to execute the command */
600 ret = readx_poll_timeout(tegra_powergate_state, id, status,
601 status == new_state, 1, 10);
602 } while (ret == -ETIMEDOUT && retries--);
607 static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc)
609 return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START);
612 static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id,
618 /* wait while PMC power gating is contended */
619 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
620 status == true, 1, 100);
624 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
626 /* wait for PMC to accept the command */
627 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
628 status == true, 1, 100);
632 /* wait for PMC to execute the command */
633 err = readx_poll_timeout(tegra_powergate_state, id, status,
634 status == new_state, 10, 100000);
642 * tegra_powergate_set() - set the state of a partition
643 * @pmc: power management controller
645 * @new_state: new state of the partition
647 static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id,
652 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
655 mutex_lock(&pmc->powergates_lock);
657 if (tegra_powergate_state(id) == new_state) {
658 mutex_unlock(&pmc->powergates_lock);
662 err = pmc->soc->powergate_set(pmc, id, new_state);
664 mutex_unlock(&pmc->powergates_lock);
669 static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc,
674 mutex_lock(&pmc->powergates_lock);
677 * On Tegra124 and later, the clamps for the GPU are controlled by a
678 * separate register (with different semantics).
680 if (id == TEGRA_POWERGATE_3D) {
681 if (pmc->soc->has_gpu_clamps) {
682 tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL);
688 * Tegra 2 has a bug where PCIE and VDE clamping masks are
689 * swapped relatively to the partition ids
691 if (id == TEGRA_POWERGATE_VDEC)
692 mask = (1 << TEGRA_POWERGATE_PCIE);
693 else if (id == TEGRA_POWERGATE_PCIE)
694 mask = (1 << TEGRA_POWERGATE_VDEC);
698 tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING);
701 mutex_unlock(&pmc->powergates_lock);
706 static int tegra_powergate_prepare_clocks(struct tegra_powergate *pg)
708 unsigned long safe_rate = 100 * 1000 * 1000;
712 for (i = 0; i < pg->num_clks; i++) {
713 pg->clk_rates[i] = clk_get_rate(pg->clks[i]);
715 if (!pg->clk_rates[i]) {
720 if (pg->clk_rates[i] <= safe_rate)
724 * We don't know whether voltage state is okay for the
725 * current clock rate, hence it's better to temporally
726 * switch clock to a safe rate which is suitable for
727 * all voltages, before enabling the clock.
729 err = clk_set_rate(pg->clks[i], safe_rate);
738 clk_set_rate(pg->clks[i], pg->clk_rates[i]);
743 static int tegra_powergate_unprepare_clocks(struct tegra_powergate *pg)
748 for (i = 0; i < pg->num_clks; i++) {
749 err = clk_set_rate(pg->clks[i], pg->clk_rates[i]);
757 static void tegra_powergate_disable_clocks(struct tegra_powergate *pg)
761 for (i = 0; i < pg->num_clks; i++)
762 clk_disable_unprepare(pg->clks[i]);
765 static int tegra_powergate_enable_clocks(struct tegra_powergate *pg)
770 for (i = 0; i < pg->num_clks; i++) {
771 err = clk_prepare_enable(pg->clks[i]);
780 clk_disable_unprepare(pg->clks[i]);
785 static int tegra_powergate_power_up(struct tegra_powergate *pg,
790 err = reset_control_assert(pg->reset);
794 usleep_range(10, 20);
796 err = tegra_powergate_set(pg->pmc, pg->id, true);
800 usleep_range(10, 20);
802 err = tegra_powergate_prepare_clocks(pg);
806 err = tegra_powergate_enable_clocks(pg);
810 usleep_range(10, 20);
812 err = __tegra_powergate_remove_clamping(pg->pmc, pg->id);
816 usleep_range(10, 20);
818 err = reset_control_deassert(pg->reset);
822 usleep_range(10, 20);
824 if (pg->pmc->soc->needs_mbist_war)
825 err = tegra210_clk_handle_mbist_war(pg->id);
830 tegra_powergate_disable_clocks(pg);
832 err = tegra_powergate_unprepare_clocks(pg);
839 tegra_powergate_disable_clocks(pg);
840 usleep_range(10, 20);
843 tegra_powergate_unprepare_clocks(pg);
846 tegra_powergate_set(pg->pmc, pg->id, false);
851 static int tegra_powergate_power_down(struct tegra_powergate *pg)
855 err = tegra_powergate_prepare_clocks(pg);
859 err = tegra_powergate_enable_clocks(pg);
863 usleep_range(10, 20);
865 err = reset_control_assert(pg->reset);
869 usleep_range(10, 20);
871 tegra_powergate_disable_clocks(pg);
873 usleep_range(10, 20);
875 err = tegra_powergate_set(pg->pmc, pg->id, false);
879 err = tegra_powergate_unprepare_clocks(pg);
886 tegra_powergate_enable_clocks(pg);
887 usleep_range(10, 20);
888 reset_control_deassert(pg->reset);
889 usleep_range(10, 20);
892 tegra_powergate_disable_clocks(pg);
895 tegra_powergate_unprepare_clocks(pg);
900 static int tegra_genpd_power_on(struct generic_pm_domain *domain)
902 struct tegra_powergate *pg = to_powergate(domain);
903 struct device *dev = pg->pmc->dev;
906 err = tegra_powergate_power_up(pg, true);
908 dev_err(dev, "failed to turn on PM domain %s: %d\n",
909 pg->genpd.name, err);
913 reset_control_release(pg->reset);
919 static int tegra_genpd_power_off(struct generic_pm_domain *domain)
921 struct tegra_powergate *pg = to_powergate(domain);
922 struct device *dev = pg->pmc->dev;
925 err = reset_control_acquire(pg->reset);
927 dev_err(dev, "failed to acquire resets for PM domain %s: %d\n",
928 pg->genpd.name, err);
932 err = tegra_powergate_power_down(pg);
934 dev_err(dev, "failed to turn off PM domain %s: %d\n",
935 pg->genpd.name, err);
936 reset_control_release(pg->reset);
943 * tegra_powergate_power_on() - power on partition
946 int tegra_powergate_power_on(unsigned int id)
948 if (!tegra_powergate_is_available(pmc, id))
951 return tegra_powergate_set(pmc, id, true);
953 EXPORT_SYMBOL(tegra_powergate_power_on);
956 * tegra_powergate_power_off() - power off partition
959 int tegra_powergate_power_off(unsigned int id)
961 if (!tegra_powergate_is_available(pmc, id))
964 return tegra_powergate_set(pmc, id, false);
966 EXPORT_SYMBOL(tegra_powergate_power_off);
969 * tegra_powergate_is_powered() - check if partition is powered
970 * @pmc: power management controller
973 static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id)
975 if (!tegra_powergate_is_valid(pmc, id))
978 return tegra_powergate_state(id);
982 * tegra_powergate_remove_clamping() - remove power clamps for partition
985 int tegra_powergate_remove_clamping(unsigned int id)
987 if (!tegra_powergate_is_available(pmc, id))
990 return __tegra_powergate_remove_clamping(pmc, id);
992 EXPORT_SYMBOL(tegra_powergate_remove_clamping);
995 * tegra_powergate_sequence_power_up() - power up partition
997 * @clk: clock for partition
998 * @rst: reset for partition
1000 * Must be called with clk disabled, and returns with clk enabled.
1002 int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
1003 struct reset_control *rst)
1005 struct tegra_powergate *pg;
1008 if (!tegra_powergate_is_available(pmc, id))
1011 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1015 pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL);
1016 if (!pg->clk_rates) {
1027 err = tegra_powergate_power_up(pg, false);
1029 dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id,
1032 kfree(pg->clk_rates);
1037 EXPORT_SYMBOL(tegra_powergate_sequence_power_up);
1040 * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID
1041 * @pmc: power management controller
1042 * @cpuid: CPU partition ID
1044 * Returns the partition ID corresponding to the CPU partition ID or a
1045 * negative error code on failure.
1047 static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc,
1050 if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates)
1051 return pmc->soc->cpu_powergates[cpuid];
1057 * tegra_pmc_cpu_is_powered() - check if CPU partition is powered
1058 * @cpuid: CPU partition ID
1060 bool tegra_pmc_cpu_is_powered(unsigned int cpuid)
1064 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1068 return tegra_powergate_is_powered(pmc, id);
1072 * tegra_pmc_cpu_power_on() - power on CPU partition
1073 * @cpuid: CPU partition ID
1075 int tegra_pmc_cpu_power_on(unsigned int cpuid)
1079 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1083 return tegra_powergate_set(pmc, id, true);
1087 * tegra_pmc_cpu_remove_clamping() - remove power clamps for CPU partition
1088 * @cpuid: CPU partition ID
1090 int tegra_pmc_cpu_remove_clamping(unsigned int cpuid)
1094 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1098 return tegra_powergate_remove_clamping(id);
1101 static void tegra_pmc_program_reboot_reason(const char *cmd)
1105 value = tegra_pmc_scratch_readl(pmc, pmc->soc->regs->scratch0);
1106 value &= ~PMC_SCRATCH0_MODE_MASK;
1109 if (strcmp(cmd, "recovery") == 0)
1110 value |= PMC_SCRATCH0_MODE_RECOVERY;
1112 if (strcmp(cmd, "bootloader") == 0)
1113 value |= PMC_SCRATCH0_MODE_BOOTLOADER;
1115 if (strcmp(cmd, "forced-recovery") == 0)
1116 value |= PMC_SCRATCH0_MODE_RCM;
1119 tegra_pmc_scratch_writel(pmc, value, pmc->soc->regs->scratch0);
1122 static int tegra_pmc_reboot_notify(struct notifier_block *this,
1123 unsigned long action, void *data)
1125 if (action == SYS_RESTART)
1126 tegra_pmc_program_reboot_reason(data);
1131 static struct notifier_block tegra_pmc_reboot_notifier = {
1132 .notifier_call = tegra_pmc_reboot_notify,
1135 static void tegra_pmc_restart(void)
1139 /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */
1140 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1141 value |= PMC_CNTRL_MAIN_RST;
1142 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1145 static int tegra_pmc_restart_handler(struct sys_off_data *data)
1147 tegra_pmc_restart();
1152 static int tegra_pmc_power_off_handler(struct sys_off_data *data)
1155 * Reboot Nexus 7 into special bootloader mode if USB cable is
1156 * connected in order to display battery status and power off.
1158 if (of_machine_is_compatible("asus,grouper") &&
1159 power_supply_is_system_supplied()) {
1160 const u32 go_to_charger_mode = 0xa5a55a5a;
1162 tegra_pmc_writel(pmc, go_to_charger_mode, PMC_SCRATCH37);
1163 tegra_pmc_restart();
1169 static int powergate_show(struct seq_file *s, void *data)
1174 seq_printf(s, " powergate powered\n");
1175 seq_printf(s, "------------------\n");
1177 for (i = 0; i < pmc->soc->num_powergates; i++) {
1178 status = tegra_powergate_is_powered(pmc, i);
1182 seq_printf(s, " %9s %7s\n", pmc->soc->powergates[i],
1183 status ? "yes" : "no");
1189 DEFINE_SHOW_ATTRIBUTE(powergate);
1191 static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
1192 struct device_node *np)
1195 unsigned int i, count;
1198 count = of_clk_get_parent_count(np);
1202 pg->clks = kcalloc(count, sizeof(clk), GFP_KERNEL);
1206 pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL);
1207 if (!pg->clk_rates) {
1212 for (i = 0; i < count; i++) {
1213 pg->clks[i] = of_clk_get(np, i);
1214 if (IS_ERR(pg->clks[i])) {
1215 err = PTR_ERR(pg->clks[i]);
1220 pg->num_clks = count;
1226 clk_put(pg->clks[i]);
1228 kfree(pg->clk_rates);
1234 static int tegra_powergate_of_get_resets(struct tegra_powergate *pg,
1235 struct device_node *np, bool off)
1237 struct device *dev = pg->pmc->dev;
1240 pg->reset = of_reset_control_array_get_exclusive_released(np);
1241 if (IS_ERR(pg->reset)) {
1242 err = PTR_ERR(pg->reset);
1243 dev_err(dev, "failed to get device resets: %d\n", err);
1247 err = reset_control_acquire(pg->reset);
1249 pr_err("failed to acquire resets: %d\n", err);
1254 err = reset_control_assert(pg->reset);
1256 err = reset_control_deassert(pg->reset);
1260 reset_control_release(pg->reset);
1265 reset_control_release(pg->reset);
1266 reset_control_put(pg->reset);
1272 static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
1274 struct device *dev = pmc->dev;
1275 struct tegra_powergate *pg;
1279 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1283 id = tegra_powergate_lookup(pmc, np->name);
1285 dev_err(dev, "powergate lookup failed for %pOFn: %d\n", np, id);
1291 * Clear the bit for this powergate so it cannot be managed
1292 * directly via the legacy APIs for controlling powergates.
1294 clear_bit(id, pmc->powergates_available);
1297 pg->genpd.name = np->name;
1298 pg->genpd.power_off = tegra_genpd_power_off;
1299 pg->genpd.power_on = tegra_genpd_power_on;
1302 off = !tegra_powergate_is_powered(pmc, pg->id);
1304 err = tegra_powergate_of_get_clks(pg, np);
1306 dev_err(dev, "failed to get clocks for %pOFn: %d\n", np, err);
1310 err = tegra_powergate_of_get_resets(pg, np, off);
1312 dev_err(dev, "failed to get resets for %pOFn: %d\n", np, err);
1316 if (!IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
1318 WARN_ON(tegra_powergate_power_up(pg, true));
1323 err = pm_genpd_init(&pg->genpd, NULL, off);
1325 dev_err(dev, "failed to initialise PM domain %pOFn: %d\n", np,
1330 err = of_genpd_add_provider_simple(np, &pg->genpd);
1332 dev_err(dev, "failed to add PM domain provider for %pOFn: %d\n",
1337 dev_dbg(dev, "added PM domain %s\n", pg->genpd.name);
1342 pm_genpd_remove(&pg->genpd);
1345 reset_control_put(pg->reset);
1348 while (pg->num_clks--)
1349 clk_put(pg->clks[pg->num_clks]);
1354 set_bit(id, pmc->powergates_available);
1362 bool tegra_pmc_core_domain_state_synced(void)
1364 return pmc->core_domain_state_synced;
1368 tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
1371 struct dev_pm_opp *opp;
1374 opp = dev_pm_opp_find_level_ceil(&genpd->dev, &level);
1376 dev_err(&genpd->dev, "failed to find OPP for level %u: %pe\n",
1378 return PTR_ERR(opp);
1381 mutex_lock(&pmc->powergates_lock);
1382 err = dev_pm_opp_set_opp(pmc->dev, opp);
1383 mutex_unlock(&pmc->powergates_lock);
1385 dev_pm_opp_put(opp);
1388 dev_err(&genpd->dev, "failed to set voltage to %duV: %d\n",
1397 tegra_pmc_core_pd_opp_to_performance_state(struct generic_pm_domain *genpd,
1398 struct dev_pm_opp *opp)
1400 return dev_pm_opp_get_level(opp);
1403 static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
1405 struct generic_pm_domain *genpd;
1406 const char *rname[] = { "core", NULL};
1409 genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
1413 genpd->name = "core";
1414 genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
1415 genpd->opp_to_performance_state = tegra_pmc_core_pd_opp_to_performance_state;
1417 err = devm_pm_opp_set_regulators(pmc->dev, rname);
1419 return dev_err_probe(pmc->dev, err,
1420 "failed to set core OPP regulator\n");
1422 err = pm_genpd_init(genpd, NULL, false);
1424 dev_err(pmc->dev, "failed to init core genpd: %d\n", err);
1428 err = of_genpd_add_provider_simple(np, genpd);
1430 dev_err(pmc->dev, "failed to add core genpd: %d\n", err);
1434 pmc->core_domain_registered = true;
1439 pm_genpd_remove(genpd);
1444 static int tegra_powergate_init(struct tegra_pmc *pmc,
1445 struct device_node *parent)
1447 struct of_phandle_args child_args, parent_args;
1448 struct device_node *np, *child;
1452 * Core power domain is the parent of powergate domains, hence it
1453 * should be registered first.
1455 np = of_get_child_by_name(parent, "core-domain");
1457 err = tegra_pmc_core_pd_add(pmc, np);
1463 np = of_get_child_by_name(parent, "powergates");
1467 for_each_child_of_node(np, child) {
1468 err = tegra_powergate_add(pmc, child);
1474 if (of_parse_phandle_with_args(child, "power-domains",
1475 "#power-domain-cells",
1479 child_args.np = child;
1480 child_args.args_count = 0;
1482 err = of_genpd_add_subdomain(&parent_args, &child_args);
1483 of_node_put(parent_args.np);
1495 static void tegra_powergate_remove(struct generic_pm_domain *genpd)
1497 struct tegra_powergate *pg = to_powergate(genpd);
1499 reset_control_put(pg->reset);
1501 while (pg->num_clks--)
1502 clk_put(pg->clks[pg->num_clks]);
1506 set_bit(pg->id, pmc->powergates_available);
1511 static void tegra_powergate_remove_all(struct device_node *parent)
1513 struct generic_pm_domain *genpd;
1514 struct device_node *np, *child;
1516 np = of_get_child_by_name(parent, "powergates");
1520 for_each_child_of_node(np, child) {
1521 of_genpd_del_provider(child);
1523 genpd = of_genpd_remove_last(child);
1527 tegra_powergate_remove(genpd);
1532 np = of_get_child_by_name(parent, "core-domain");
1534 of_genpd_del_provider(np);
1535 of_genpd_remove_last(np);
1539 static const struct tegra_io_pad_soc *
1540 tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
1544 for (i = 0; i < pmc->soc->num_io_pads; i++)
1545 if (pmc->soc->io_pads[i].id == id)
1546 return &pmc->soc->io_pads[i];
1551 static int tegra_io_pad_prepare(struct tegra_pmc *pmc,
1552 const struct tegra_io_pad_soc *pad,
1553 unsigned long *request,
1554 unsigned long *status,
1557 unsigned long rate, value;
1559 if (pad->dpd == UINT_MAX)
1562 *request = pad->request;
1563 *status = pad->status;
1564 *mask = BIT(pad->dpd);
1569 dev_err(pmc->dev, "failed to get clock rate\n");
1573 tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE);
1575 /* must be at least 200 ns, in APB (PCLK) clock cycles */
1576 value = DIV_ROUND_UP(1000000000, rate);
1577 value = DIV_ROUND_UP(200, value);
1578 tegra_pmc_writel(pmc, value, SEL_DPD_TIM);
1584 static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset,
1585 u32 mask, u32 val, unsigned long timeout)
1589 timeout = jiffies + msecs_to_jiffies(timeout);
1591 while (time_after(timeout, jiffies)) {
1592 value = tegra_pmc_readl(pmc, offset);
1593 if ((value & mask) == val)
1596 usleep_range(250, 1000);
1602 static void tegra_io_pad_unprepare(struct tegra_pmc *pmc)
1605 tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE);
1609 * tegra_io_pad_power_enable() - enable power to I/O pad
1610 * @id: Tegra I/O pad ID for which to enable power
1612 * Returns: 0 on success or a negative error code on failure.
1614 int tegra_io_pad_power_enable(enum tegra_io_pad id)
1616 const struct tegra_io_pad_soc *pad;
1617 unsigned long request, status;
1621 pad = tegra_io_pad_find(pmc, id);
1623 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1627 mutex_lock(&pmc->powergates_lock);
1629 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1631 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1635 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request);
1637 err = tegra_io_pad_poll(pmc, status, mask, 0, 250);
1639 dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err);
1643 tegra_io_pad_unprepare(pmc);
1646 mutex_unlock(&pmc->powergates_lock);
1649 EXPORT_SYMBOL(tegra_io_pad_power_enable);
1652 * tegra_io_pad_power_disable() - disable power to I/O pad
1653 * @id: Tegra I/O pad ID for which to disable power
1655 * Returns: 0 on success or a negative error code on failure.
1657 int tegra_io_pad_power_disable(enum tegra_io_pad id)
1659 const struct tegra_io_pad_soc *pad;
1660 unsigned long request, status;
1664 pad = tegra_io_pad_find(pmc, id);
1666 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1670 mutex_lock(&pmc->powergates_lock);
1672 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1674 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1678 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request);
1680 err = tegra_io_pad_poll(pmc, status, mask, mask, 250);
1682 dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err);
1686 tegra_io_pad_unprepare(pmc);
1689 mutex_unlock(&pmc->powergates_lock);
1692 EXPORT_SYMBOL(tegra_io_pad_power_disable);
1694 static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id)
1696 const struct tegra_io_pad_soc *pad;
1697 unsigned long status;
1700 pad = tegra_io_pad_find(pmc, id);
1702 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1706 if (pad->dpd == UINT_MAX)
1709 status = pad->status;
1710 mask = BIT(pad->dpd);
1712 value = tegra_pmc_readl(pmc, status);
1714 return !(value & mask);
1717 static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id,
1720 const struct tegra_io_pad_soc *pad;
1723 pad = tegra_io_pad_find(pmc, id);
1727 if (pad->voltage == UINT_MAX)
1730 mutex_lock(&pmc->powergates_lock);
1732 if (pmc->soc->has_impl_33v_pwr) {
1733 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1735 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1736 value &= ~BIT(pad->voltage);
1738 value |= BIT(pad->voltage);
1740 tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR);
1742 /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
1743 value = tegra_pmc_readl(pmc, PMC_PWR_DET);
1744 value |= BIT(pad->voltage);
1745 tegra_pmc_writel(pmc, value, PMC_PWR_DET);
1747 /* update I/O voltage */
1748 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1750 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1751 value &= ~BIT(pad->voltage);
1753 value |= BIT(pad->voltage);
1755 tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE);
1758 mutex_unlock(&pmc->powergates_lock);
1760 usleep_range(100, 250);
1765 static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
1767 const struct tegra_io_pad_soc *pad;
1770 pad = tegra_io_pad_find(pmc, id);
1774 if (pad->voltage == UINT_MAX)
1777 if (pmc->soc->has_impl_33v_pwr)
1778 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1780 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1782 if ((value & BIT(pad->voltage)) == 0)
1783 return TEGRA_IO_PAD_VOLTAGE_1V8;
1785 return TEGRA_IO_PAD_VOLTAGE_3V3;
1789 * tegra_io_rail_power_on() - enable power to I/O rail
1790 * @id: Tegra I/O pad ID for which to enable power
1792 * See also: tegra_io_pad_power_enable()
1794 int tegra_io_rail_power_on(unsigned int id)
1796 return tegra_io_pad_power_enable(id);
1798 EXPORT_SYMBOL(tegra_io_rail_power_on);
1801 * tegra_io_rail_power_off() - disable power to I/O rail
1802 * @id: Tegra I/O pad ID for which to disable power
1804 * See also: tegra_io_pad_power_disable()
1806 int tegra_io_rail_power_off(unsigned int id)
1808 return tegra_io_pad_power_disable(id);
1810 EXPORT_SYMBOL(tegra_io_rail_power_off);
1812 #ifdef CONFIG_PM_SLEEP
1813 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
1815 return pmc->suspend_mode;
1818 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
1820 if (mode < TEGRA_SUSPEND_NONE || mode >= TEGRA_MAX_SUSPEND_MODE)
1823 pmc->suspend_mode = mode;
1826 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode)
1828 unsigned long long rate = 0;
1833 case TEGRA_SUSPEND_LP1:
1837 case TEGRA_SUSPEND_LP2:
1845 if (WARN_ON_ONCE(rate == 0))
1848 ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1;
1849 do_div(ticks, USEC_PER_SEC);
1850 tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER);
1852 ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1;
1853 do_div(ticks, USEC_PER_SEC);
1854 tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER);
1856 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1857 value &= ~PMC_CNTRL_SIDE_EFFECT_LP0;
1858 value |= PMC_CNTRL_CPU_PWRREQ_OE;
1859 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1863 static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np)
1865 u32 value, values[2];
1867 if (of_property_read_u32(np, "nvidia,suspend-mode", &value)) {
1868 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1872 pmc->suspend_mode = TEGRA_SUSPEND_LP0;
1876 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1880 pmc->suspend_mode = TEGRA_SUSPEND_LP2;
1884 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1889 pmc->suspend_mode = tegra_pm_validate_suspend_mode(pmc->suspend_mode);
1891 if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &value))
1892 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1894 pmc->cpu_good_time = value;
1896 if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &value))
1897 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1899 pmc->cpu_off_time = value;
1901 if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time",
1902 values, ARRAY_SIZE(values)))
1903 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1905 pmc->core_osc_time = values[0];
1906 pmc->core_pmu_time = values[1];
1908 if (of_property_read_u32(np, "nvidia,core-pwr-off-time", &value))
1909 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1911 pmc->core_off_time = value;
1913 pmc->corereq_high = of_property_read_bool(np,
1914 "nvidia,core-power-req-active-high");
1916 pmc->sysclkreq_high = of_property_read_bool(np,
1917 "nvidia,sys-clock-req-active-high");
1919 pmc->combined_req = of_property_read_bool(np,
1920 "nvidia,combined-power-req");
1922 pmc->cpu_pwr_good_en = of_property_read_bool(np,
1923 "nvidia,cpu-pwr-good-en");
1925 if (of_property_read_u32_array(np, "nvidia,lp0-vec", values,
1926 ARRAY_SIZE(values)))
1927 if (pmc->suspend_mode == TEGRA_SUSPEND_LP0)
1928 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1930 pmc->lp0_vec_phys = values[0];
1931 pmc->lp0_vec_size = values[1];
1936 static int tegra_pmc_init(struct tegra_pmc *pmc)
1938 if (pmc->soc->max_wake_events > 0) {
1939 pmc->wake_type_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1940 if (!pmc->wake_type_level_map)
1943 pmc->wake_type_dual_edge_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1944 if (!pmc->wake_type_dual_edge_map)
1947 pmc->wake_sw_status_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1948 if (!pmc->wake_sw_status_map)
1951 pmc->wake_cntrl_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1952 if (!pmc->wake_cntrl_level_map)
1957 pmc->soc->init(pmc);
1962 static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc)
1964 static const char disabled[] = "emergency thermal reset disabled";
1965 u32 pmu_addr, ctrl_id, reg_addr, reg_data, pinmux;
1966 struct device *dev = pmc->dev;
1967 struct device_node *np;
1968 u32 value, checksum;
1970 if (!pmc->soc->has_tsense_reset)
1973 np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip");
1975 dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled);
1979 if (of_property_read_u32(np, "nvidia,i2c-controller-id", &ctrl_id)) {
1980 dev_err(dev, "I2C controller ID missing, %s.\n", disabled);
1984 if (of_property_read_u32(np, "nvidia,bus-addr", &pmu_addr)) {
1985 dev_err(dev, "nvidia,bus-addr missing, %s.\n", disabled);
1989 if (of_property_read_u32(np, "nvidia,reg-addr", ®_addr)) {
1990 dev_err(dev, "nvidia,reg-addr missing, %s.\n", disabled);
1994 if (of_property_read_u32(np, "nvidia,reg-data", ®_data)) {
1995 dev_err(dev, "nvidia,reg-data missing, %s.\n", disabled);
1999 if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux))
2002 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2003 value |= PMC_SENSOR_CTRL_SCRATCH_WRITE;
2004 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2006 value = (reg_data << PMC_SCRATCH54_DATA_SHIFT) |
2007 (reg_addr << PMC_SCRATCH54_ADDR_SHIFT);
2008 tegra_pmc_writel(pmc, value, PMC_SCRATCH54);
2010 value = PMC_SCRATCH55_RESET_TEGRA;
2011 value |= ctrl_id << PMC_SCRATCH55_CNTRL_ID_SHIFT;
2012 value |= pinmux << PMC_SCRATCH55_PINMUX_SHIFT;
2013 value |= pmu_addr << PMC_SCRATCH55_I2CSLV1_SHIFT;
2016 * Calculate checksum of SCRATCH54, SCRATCH55 fields. Bits 23:16 will
2017 * contain the checksum and are currently zero, so they are not added.
2019 checksum = reg_addr + reg_data + (value & 0xff) + ((value >> 8) & 0xff)
2020 + ((value >> 24) & 0xff);
2022 checksum = 0x100 - checksum;
2024 value |= checksum << PMC_SCRATCH55_CHECKSUM_SHIFT;
2026 tegra_pmc_writel(pmc, value, PMC_SCRATCH55);
2028 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2029 value |= PMC_SENSOR_CTRL_ENABLE_RST;
2030 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2032 dev_info(pmc->dev, "emergency thermal reset enabled\n");
2038 static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev)
2040 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2042 return pmc->soc->num_io_pads;
2045 static const char *tegra_io_pad_pinctrl_get_group_name(struct pinctrl_dev *pctl,
2048 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl);
2050 return pmc->soc->io_pads[group].name;
2053 static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev,
2055 const unsigned int **pins,
2056 unsigned int *num_pins)
2058 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2060 *pins = &pmc->soc->io_pads[group].id;
2066 static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = {
2067 .get_groups_count = tegra_io_pad_pinctrl_get_groups_count,
2068 .get_group_name = tegra_io_pad_pinctrl_get_group_name,
2069 .get_group_pins = tegra_io_pad_pinctrl_get_group_pins,
2070 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
2071 .dt_free_map = pinconf_generic_dt_free_map,
2074 static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev,
2075 unsigned int pin, unsigned long *config)
2077 enum pin_config_param param = pinconf_to_config_param(*config);
2078 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2079 const struct tegra_io_pad_soc *pad;
2083 pad = tegra_io_pad_find(pmc, pin);
2088 case PIN_CONFIG_POWER_SOURCE:
2089 ret = tegra_io_pad_get_voltage(pmc, pad->id);
2096 case PIN_CONFIG_MODE_LOW_POWER:
2097 ret = tegra_io_pad_is_powered(pmc, pad->id);
2108 *config = pinconf_to_config_packed(param, arg);
2113 static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev,
2114 unsigned int pin, unsigned long *configs,
2115 unsigned int num_configs)
2117 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2118 const struct tegra_io_pad_soc *pad;
2119 enum pin_config_param param;
2124 pad = tegra_io_pad_find(pmc, pin);
2128 for (i = 0; i < num_configs; ++i) {
2129 param = pinconf_to_config_param(configs[i]);
2130 arg = pinconf_to_config_argument(configs[i]);
2133 case PIN_CONFIG_MODE_LOW_POWER:
2135 err = tegra_io_pad_power_disable(pad->id);
2137 err = tegra_io_pad_power_enable(pad->id);
2141 case PIN_CONFIG_POWER_SOURCE:
2142 if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 &&
2143 arg != TEGRA_IO_PAD_VOLTAGE_3V3)
2145 err = tegra_io_pad_set_voltage(pmc, pad->id, arg);
2157 static const struct pinconf_ops tegra_io_pad_pinconf_ops = {
2158 .pin_config_get = tegra_io_pad_pinconf_get,
2159 .pin_config_set = tegra_io_pad_pinconf_set,
2163 static struct pinctrl_desc tegra_pmc_pctl_desc = {
2164 .pctlops = &tegra_io_pad_pinctrl_ops,
2165 .confops = &tegra_io_pad_pinconf_ops,
2168 static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
2172 if (!pmc->soc->num_pin_descs)
2175 tegra_pmc_pctl_desc.name = dev_name(pmc->dev);
2176 tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs;
2177 tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs;
2179 pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc,
2181 if (IS_ERR(pmc->pctl_dev)) {
2182 err = PTR_ERR(pmc->pctl_dev);
2183 dev_err(pmc->dev, "failed to register pin controller: %d\n",
2191 static ssize_t reset_reason_show(struct device *dev,
2192 struct device_attribute *attr, char *buf)
2196 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2197 value &= pmc->soc->regs->rst_source_mask;
2198 value >>= pmc->soc->regs->rst_source_shift;
2200 if (WARN_ON(value >= pmc->soc->num_reset_sources))
2201 return sprintf(buf, "%s\n", "UNKNOWN");
2203 return sprintf(buf, "%s\n", pmc->soc->reset_sources[value]);
2206 static DEVICE_ATTR_RO(reset_reason);
2208 static ssize_t reset_level_show(struct device *dev,
2209 struct device_attribute *attr, char *buf)
2213 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2214 value &= pmc->soc->regs->rst_level_mask;
2215 value >>= pmc->soc->regs->rst_level_shift;
2217 if (WARN_ON(value >= pmc->soc->num_reset_levels))
2218 return sprintf(buf, "%s\n", "UNKNOWN");
2220 return sprintf(buf, "%s\n", pmc->soc->reset_levels[value]);
2223 static DEVICE_ATTR_RO(reset_level);
2225 static void tegra_pmc_reset_sysfs_init(struct tegra_pmc *pmc)
2227 struct device *dev = pmc->dev;
2230 if (pmc->soc->reset_sources) {
2231 err = device_create_file(dev, &dev_attr_reset_reason);
2234 "failed to create attr \"reset_reason\": %d\n",
2238 if (pmc->soc->reset_levels) {
2239 err = device_create_file(dev, &dev_attr_reset_level);
2242 "failed to create attr \"reset_level\": %d\n",
2247 static int tegra_pmc_irq_translate(struct irq_domain *domain,
2248 struct irq_fwspec *fwspec,
2249 unsigned long *hwirq,
2252 if (WARN_ON(fwspec->param_count < 2))
2255 *hwirq = fwspec->param[0];
2256 *type = fwspec->param[1];
2261 static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
2262 unsigned int num_irqs, void *data)
2264 struct tegra_pmc *pmc = domain->host_data;
2265 const struct tegra_pmc_soc *soc = pmc->soc;
2266 struct irq_fwspec *fwspec = data;
2270 if (WARN_ON(num_irqs > 1))
2273 for (i = 0; i < soc->num_wake_events; i++) {
2274 const struct tegra_wake_event *event = &soc->wake_events[i];
2276 /* IRQ and simple wake events */
2277 if (fwspec->param_count == 2) {
2278 struct irq_fwspec spec;
2280 if (event->id != fwspec->param[0])
2283 err = irq_domain_set_hwirq_and_chip(domain, virq,
2289 /* simple hierarchies stop at the PMC level */
2290 if (event->irq == 0) {
2291 err = irq_domain_disconnect_hierarchy(domain->parent, virq);
2295 spec.fwnode = &pmc->dev->of_node->fwnode;
2296 spec.param_count = 3;
2297 spec.param[0] = GIC_SPI;
2298 spec.param[1] = event->irq;
2299 spec.param[2] = fwspec->param[1];
2301 err = irq_domain_alloc_irqs_parent(domain, virq,
2307 /* GPIO wake events */
2308 if (fwspec->param_count == 3) {
2309 if (event->gpio.instance != fwspec->param[0] ||
2310 event->gpio.pin != fwspec->param[1])
2313 err = irq_domain_set_hwirq_and_chip(domain, virq,
2317 /* GPIO hierarchies stop at the PMC level */
2318 if (!err && domain->parent)
2319 err = irq_domain_disconnect_hierarchy(domain->parent,
2325 /* If there is no wake-up event, there is no PMC mapping */
2326 if (i == soc->num_wake_events)
2327 err = irq_domain_disconnect_hierarchy(domain, virq);
2332 static const struct irq_domain_ops tegra_pmc_irq_domain_ops = {
2333 .translate = tegra_pmc_irq_translate,
2334 .alloc = tegra_pmc_irq_alloc,
2337 static int tegra210_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2339 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2340 unsigned int offset, bit;
2343 offset = data->hwirq / 32;
2344 bit = data->hwirq % 32;
2346 /* clear wake status */
2347 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE_STATUS);
2348 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE2_STATUS);
2350 tegra_pmc_writel(pmc, 0, PMC_WAKE_STATUS);
2351 tegra_pmc_writel(pmc, 0, PMC_WAKE2_STATUS);
2353 /* enable PMC wake */
2354 if (data->hwirq >= 32)
2355 offset = PMC_WAKE2_MASK;
2357 offset = PMC_WAKE_MASK;
2359 value = tegra_pmc_readl(pmc, offset);
2366 tegra_pmc_writel(pmc, value, offset);
2371 static int tegra210_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2373 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2374 unsigned int offset, bit;
2377 offset = data->hwirq / 32;
2378 bit = data->hwirq % 32;
2380 if (data->hwirq >= 32)
2381 offset = PMC_WAKE2_LEVEL;
2383 offset = PMC_WAKE_LEVEL;
2385 value = tegra_pmc_readl(pmc, offset);
2388 case IRQ_TYPE_EDGE_RISING:
2389 case IRQ_TYPE_LEVEL_HIGH:
2393 case IRQ_TYPE_EDGE_FALLING:
2394 case IRQ_TYPE_LEVEL_LOW:
2398 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2406 tegra_pmc_writel(pmc, value, offset);
2411 static void tegra186_pmc_set_wake_filters(struct tegra_pmc *pmc)
2415 /* SW Wake (wake83) needs SR_CAPTURE filter to be enabled */
2416 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2417 value |= WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN;
2418 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2419 dev_dbg(pmc->dev, "WAKE_AOWAKE_CNTRL_83 = 0x%x\n", value);
2422 static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2424 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2425 unsigned int offset, bit;
2428 offset = data->hwirq / 32;
2429 bit = data->hwirq % 32;
2431 /* clear wake status */
2432 writel(0x1, pmc->wake + WAKE_AOWAKE_STATUS_W(data->hwirq));
2434 /* route wake to tier 2 */
2435 value = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2438 value &= ~(1 << bit);
2442 writel(value, pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2444 /* enable wakeup event */
2445 writel(!!on, pmc->wake + WAKE_AOWAKE_MASK_W(data->hwirq));
2450 static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2452 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2455 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2458 case IRQ_TYPE_EDGE_RISING:
2459 case IRQ_TYPE_LEVEL_HIGH:
2460 value |= WAKE_AOWAKE_CNTRL_LEVEL;
2461 set_bit(data->hwirq, pmc->wake_type_level_map);
2462 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2465 case IRQ_TYPE_EDGE_FALLING:
2466 case IRQ_TYPE_LEVEL_LOW:
2467 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
2468 clear_bit(data->hwirq, pmc->wake_type_level_map);
2469 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2472 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2473 value ^= WAKE_AOWAKE_CNTRL_LEVEL;
2474 clear_bit(data->hwirq, pmc->wake_type_level_map);
2475 set_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2482 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2487 static void tegra_irq_mask_parent(struct irq_data *data)
2489 if (data->parent_data)
2490 irq_chip_mask_parent(data);
2493 static void tegra_irq_unmask_parent(struct irq_data *data)
2495 if (data->parent_data)
2496 irq_chip_unmask_parent(data);
2499 static void tegra_irq_eoi_parent(struct irq_data *data)
2501 if (data->parent_data)
2502 irq_chip_eoi_parent(data);
2505 static int tegra_irq_set_affinity_parent(struct irq_data *data,
2506 const struct cpumask *dest,
2509 if (data->parent_data)
2510 return irq_chip_set_affinity_parent(data, dest, force);
2515 static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
2517 struct irq_domain *parent = NULL;
2518 struct device_node *np;
2520 np = of_irq_find_parent(pmc->dev->of_node);
2522 parent = irq_find_host(np);
2529 pmc->irq.name = dev_name(pmc->dev);
2530 pmc->irq.irq_mask = tegra_irq_mask_parent;
2531 pmc->irq.irq_unmask = tegra_irq_unmask_parent;
2532 pmc->irq.irq_eoi = tegra_irq_eoi_parent;
2533 pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent;
2534 pmc->irq.irq_set_type = pmc->soc->irq_set_type;
2535 pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;
2537 pmc->domain = irq_domain_add_hierarchy(parent, 0, 96, pmc->dev->of_node,
2538 &tegra_pmc_irq_domain_ops, pmc);
2540 dev_err(pmc->dev, "failed to allocate domain\n");
2547 static int tegra_pmc_clk_notify_cb(struct notifier_block *nb,
2548 unsigned long action, void *ptr)
2550 struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, clk_nb);
2551 struct clk_notifier_data *data = ptr;
2554 case PRE_RATE_CHANGE:
2555 mutex_lock(&pmc->powergates_lock);
2558 case POST_RATE_CHANGE:
2559 pmc->rate = data->new_rate;
2562 case ABORT_RATE_CHANGE:
2563 mutex_unlock(&pmc->powergates_lock);
2568 return notifier_from_errno(-EINVAL);
2574 static void pmc_clk_fence_udelay(u32 offset)
2576 tegra_pmc_readl(pmc, offset);
2577 /* pmc clk propagation delay 2 us */
2581 static u8 pmc_clk_mux_get_parent(struct clk_hw *hw)
2583 struct pmc_clk *clk = to_pmc_clk(hw);
2586 val = tegra_pmc_readl(pmc, clk->offs) >> clk->mux_shift;
2587 val &= PMC_CLK_OUT_MUX_MASK;
2592 static int pmc_clk_mux_set_parent(struct clk_hw *hw, u8 index)
2594 struct pmc_clk *clk = to_pmc_clk(hw);
2597 val = tegra_pmc_readl(pmc, clk->offs);
2598 val &= ~(PMC_CLK_OUT_MUX_MASK << clk->mux_shift);
2599 val |= index << clk->mux_shift;
2600 tegra_pmc_writel(pmc, val, clk->offs);
2601 pmc_clk_fence_udelay(clk->offs);
2606 static int pmc_clk_is_enabled(struct clk_hw *hw)
2608 struct pmc_clk *clk = to_pmc_clk(hw);
2611 val = tegra_pmc_readl(pmc, clk->offs) & BIT(clk->force_en_shift);
2616 static void pmc_clk_set_state(unsigned long offs, u32 shift, int state)
2620 val = tegra_pmc_readl(pmc, offs);
2621 val = state ? (val | BIT(shift)) : (val & ~BIT(shift));
2622 tegra_pmc_writel(pmc, val, offs);
2623 pmc_clk_fence_udelay(offs);
2626 static int pmc_clk_enable(struct clk_hw *hw)
2628 struct pmc_clk *clk = to_pmc_clk(hw);
2630 pmc_clk_set_state(clk->offs, clk->force_en_shift, 1);
2635 static void pmc_clk_disable(struct clk_hw *hw)
2637 struct pmc_clk *clk = to_pmc_clk(hw);
2639 pmc_clk_set_state(clk->offs, clk->force_en_shift, 0);
2642 static const struct clk_ops pmc_clk_ops = {
2643 .get_parent = pmc_clk_mux_get_parent,
2644 .set_parent = pmc_clk_mux_set_parent,
2645 .determine_rate = __clk_mux_determine_rate,
2646 .is_enabled = pmc_clk_is_enabled,
2647 .enable = pmc_clk_enable,
2648 .disable = pmc_clk_disable,
2652 tegra_pmc_clk_out_register(struct tegra_pmc *pmc,
2653 const struct pmc_clk_init_data *data,
2654 unsigned long offset)
2656 struct clk_init_data init;
2657 struct pmc_clk *pmc_clk;
2659 pmc_clk = devm_kzalloc(pmc->dev, sizeof(*pmc_clk), GFP_KERNEL);
2661 return ERR_PTR(-ENOMEM);
2663 init.name = data->name;
2664 init.ops = &pmc_clk_ops;
2665 init.parent_names = data->parents;
2666 init.num_parents = data->num_parents;
2667 init.flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT |
2668 CLK_SET_PARENT_GATE;
2670 pmc_clk->hw.init = &init;
2671 pmc_clk->offs = offset;
2672 pmc_clk->mux_shift = data->mux_shift;
2673 pmc_clk->force_en_shift = data->force_en_shift;
2675 return clk_register(NULL, &pmc_clk->hw);
2678 static int pmc_clk_gate_is_enabled(struct clk_hw *hw)
2680 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2682 return tegra_pmc_readl(pmc, gate->offs) & BIT(gate->shift) ? 1 : 0;
2685 static int pmc_clk_gate_enable(struct clk_hw *hw)
2687 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2689 pmc_clk_set_state(gate->offs, gate->shift, 1);
2694 static void pmc_clk_gate_disable(struct clk_hw *hw)
2696 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2698 pmc_clk_set_state(gate->offs, gate->shift, 0);
2701 static const struct clk_ops pmc_clk_gate_ops = {
2702 .is_enabled = pmc_clk_gate_is_enabled,
2703 .enable = pmc_clk_gate_enable,
2704 .disable = pmc_clk_gate_disable,
2708 tegra_pmc_clk_gate_register(struct tegra_pmc *pmc, const char *name,
2709 const char *parent_name, unsigned long offset,
2712 struct clk_init_data init;
2713 struct pmc_clk_gate *gate;
2715 gate = devm_kzalloc(pmc->dev, sizeof(*gate), GFP_KERNEL);
2717 return ERR_PTR(-ENOMEM);
2720 init.ops = &pmc_clk_gate_ops;
2721 init.parent_names = &parent_name;
2722 init.num_parents = 1;
2725 gate->hw.init = &init;
2726 gate->offs = offset;
2727 gate->shift = shift;
2729 return clk_register(NULL, &gate->hw);
2732 static void tegra_pmc_clock_register(struct tegra_pmc *pmc,
2733 struct device_node *np)
2736 struct clk_onecell_data *clk_data;
2737 unsigned int num_clks;
2740 num_clks = pmc->soc->num_pmc_clks;
2741 if (pmc->soc->has_blink_output)
2747 clk_data = devm_kmalloc(pmc->dev, sizeof(*clk_data), GFP_KERNEL);
2751 clk_data->clks = devm_kcalloc(pmc->dev, TEGRA_PMC_CLK_MAX,
2752 sizeof(*clk_data->clks), GFP_KERNEL);
2753 if (!clk_data->clks)
2756 clk_data->clk_num = TEGRA_PMC_CLK_MAX;
2758 for (i = 0; i < TEGRA_PMC_CLK_MAX; i++)
2759 clk_data->clks[i] = ERR_PTR(-ENOENT);
2761 for (i = 0; i < pmc->soc->num_pmc_clks; i++) {
2762 const struct pmc_clk_init_data *data;
2764 data = pmc->soc->pmc_clks_data + i;
2766 clk = tegra_pmc_clk_out_register(pmc, data, PMC_CLK_OUT_CNTRL);
2768 dev_warn(pmc->dev, "unable to register clock %s: %d\n",
2769 data->name, PTR_ERR_OR_ZERO(clk));
2773 err = clk_register_clkdev(clk, data->name, NULL);
2776 "unable to register %s clock lookup: %d\n",
2781 clk_data->clks[data->clk_id] = clk;
2784 if (pmc->soc->has_blink_output) {
2785 tegra_pmc_writel(pmc, 0x0, PMC_BLINK_TIMER);
2786 clk = tegra_pmc_clk_gate_register(pmc,
2787 "pmc_blink_override",
2790 PMC_DPD_PADS_ORIDE_BLINK);
2793 "unable to register pmc_blink_override: %d\n",
2794 PTR_ERR_OR_ZERO(clk));
2798 clk = tegra_pmc_clk_gate_register(pmc, "pmc_blink",
2799 "pmc_blink_override",
2801 PMC_CNTRL_BLINK_EN);
2804 "unable to register pmc_blink: %d\n",
2805 PTR_ERR_OR_ZERO(clk));
2809 err = clk_register_clkdev(clk, "pmc_blink", NULL);
2812 "unable to register pmc_blink lookup: %d\n",
2817 clk_data->clks[TEGRA_PMC_CLK_BLINK] = clk;
2820 err = of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
2822 dev_warn(pmc->dev, "failed to add pmc clock provider: %d\n",
2826 static const struct regmap_range pmc_usb_sleepwalk_ranges[] = {
2827 regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO),
2828 regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE),
2829 regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE),
2830 regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP),
2831 regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG),
2832 regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG),
2833 regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1),
2834 regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3),
2837 static const struct regmap_access_table pmc_usb_sleepwalk_table = {
2838 .yes_ranges = pmc_usb_sleepwalk_ranges,
2839 .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges),
2842 static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value)
2844 struct tegra_pmc *pmc = context;
2846 *value = tegra_pmc_readl(pmc, offset);
2850 static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value)
2852 struct tegra_pmc *pmc = context;
2854 tegra_pmc_writel(pmc, value, offset);
2858 static const struct regmap_config usb_sleepwalk_regmap_config = {
2859 .name = "usb_sleepwalk",
2864 .rd_table = &pmc_usb_sleepwalk_table,
2865 .wr_table = &pmc_usb_sleepwalk_table,
2866 .reg_read = tegra_pmc_regmap_readl,
2867 .reg_write = tegra_pmc_regmap_writel,
2870 static int tegra_pmc_regmap_init(struct tegra_pmc *pmc)
2872 struct regmap *regmap;
2875 if (pmc->soc->has_usb_sleepwalk) {
2876 regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config);
2877 if (IS_ERR(regmap)) {
2878 err = PTR_ERR(regmap);
2879 dev_err(pmc->dev, "failed to allocate register map (%d)\n", err);
2887 static void tegra_pmc_reset_suspend_mode(void *data)
2889 pmc->suspend_mode = TEGRA_SUSPEND_NOT_READY;
2892 static int tegra_pmc_probe(struct platform_device *pdev)
2895 struct resource *res;
2899 * Early initialisation should have configured an initial
2900 * register mapping and setup the soc data pointer. If these
2901 * are not valid then something went badly wrong!
2903 if (WARN_ON(!pmc->base || !pmc->soc))
2906 err = tegra_pmc_parse_dt(pmc, pdev->dev.of_node);
2910 err = devm_add_action_or_reset(&pdev->dev, tegra_pmc_reset_suspend_mode,
2915 /* take over the memory region from the early initialization */
2916 base = devm_platform_ioremap_resource(pdev, 0);
2918 return PTR_ERR(base);
2920 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake");
2922 pmc->wake = devm_ioremap_resource(&pdev->dev, res);
2923 if (IS_ERR(pmc->wake))
2924 return PTR_ERR(pmc->wake);
2929 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag");
2931 pmc->aotag = devm_ioremap_resource(&pdev->dev, res);
2932 if (IS_ERR(pmc->aotag))
2933 return PTR_ERR(pmc->aotag);
2938 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch");
2940 pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
2941 if (IS_ERR(pmc->scratch))
2942 return PTR_ERR(pmc->scratch);
2944 pmc->scratch = base;
2947 pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk");
2948 if (IS_ERR(pmc->clk))
2949 return dev_err_probe(&pdev->dev, PTR_ERR(pmc->clk),
2950 "failed to get pclk\n");
2953 * PMC should be last resort for restarting since it soft-resets
2954 * CPU without resetting everything else.
2956 err = devm_register_reboot_notifier(&pdev->dev,
2957 &tegra_pmc_reboot_notifier);
2959 dev_err(&pdev->dev, "unable to register reboot notifier, %d\n",
2964 err = devm_register_sys_off_handler(&pdev->dev,
2965 SYS_OFF_MODE_RESTART,
2967 tegra_pmc_restart_handler, NULL);
2969 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2975 * PMC should be primary power-off method if it soft-resets CPU,
2976 * asking bootloader to shutdown hardware.
2978 err = devm_register_sys_off_handler(&pdev->dev,
2979 SYS_OFF_MODE_POWER_OFF,
2980 SYS_OFF_PRIO_FIRMWARE,
2981 tegra_pmc_power_off_handler, NULL);
2983 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2989 * PCLK clock rate can't be retrieved using CLK API because it
2990 * causes lockup if CPU enters LP2 idle state from some other
2991 * CLK notifier, hence we're caching the rate's value locally.
2994 pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
2995 err = devm_clk_notifier_register(&pdev->dev, pmc->clk,
2999 "failed to register clk notifier\n");
3003 pmc->rate = clk_get_rate(pmc->clk);
3006 pmc->dev = &pdev->dev;
3008 err = tegra_pmc_init(pmc);
3010 dev_err(&pdev->dev, "failed to initialize PMC: %d\n", err);
3014 tegra_pmc_init_tsense_reset(pmc);
3016 tegra_pmc_reset_sysfs_init(pmc);
3018 err = tegra_pmc_pinctrl_init(pmc);
3022 err = tegra_pmc_regmap_init(pmc);
3026 err = tegra_powergate_init(pmc, pdev->dev.of_node);
3028 goto cleanup_powergates;
3030 err = tegra_pmc_irq_init(pmc);
3032 goto cleanup_powergates;
3034 mutex_lock(&pmc->powergates_lock);
3037 mutex_unlock(&pmc->powergates_lock);
3039 tegra_pmc_clock_register(pmc, pdev->dev.of_node);
3040 platform_set_drvdata(pdev, pmc);
3041 tegra_pm_init_suspend();
3043 /* Some wakes require specific filter configuration */
3044 if (pmc->soc->set_wake_filters)
3045 pmc->soc->set_wake_filters(pmc);
3047 debugfs_create_file("powergate", 0444, NULL, NULL, &powergate_fops);
3052 tegra_powergate_remove_all(pdev->dev.of_node);
3054 device_remove_file(&pdev->dev, &dev_attr_reset_reason);
3055 device_remove_file(&pdev->dev, &dev_attr_reset_level);
3061 * Ensures that sufficient time is passed for a register write to
3062 * serialize into the 32KHz domain.
3064 static void wke_32kwritel(struct tegra_pmc *pmc, u32 value, unsigned int offset)
3066 writel(value, pmc->wake + offset);
3070 static void wke_write_wake_level(struct tegra_pmc *pmc, int wake, int level)
3072 unsigned int offset = WAKE_AOWAKE_CNTRL(wake);
3075 value = readl(pmc->wake + offset);
3077 value |= WAKE_AOWAKE_CNTRL_LEVEL;
3079 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
3081 writel(value, pmc->wake + offset);
3084 static void wke_write_wake_levels(struct tegra_pmc *pmc)
3088 for (i = 0; i < pmc->soc->max_wake_events; i++)
3089 wke_write_wake_level(pmc, i, test_bit(i, pmc->wake_cntrl_level_map));
3092 static void wke_clear_sw_wake_status(struct tegra_pmc *pmc)
3094 wke_32kwritel(pmc, 1, WAKE_AOWAKE_SW_STATUS_W_0);
3097 static void wke_read_sw_wake_status(struct tegra_pmc *pmc)
3099 unsigned long status;
3100 unsigned int wake, i;
3102 for (i = 0; i < pmc->soc->max_wake_events; i++)
3103 wke_write_wake_level(pmc, i, 0);
3105 wke_clear_sw_wake_status(pmc);
3107 wke_32kwritel(pmc, 1, WAKE_LATCH_SW);
3110 * WAKE_AOWAKE_SW_STATUS is edge triggered, so in order to
3111 * obtain the current status of the input wake signals, change
3112 * the polarity of the wake level from 0->1 while latching to force
3113 * a positive edge if the sampled signal is '1'.
3115 for (i = 0; i < pmc->soc->max_wake_events; i++)
3116 wke_write_wake_level(pmc, i, 1);
3119 * Wait for the update to be synced into the 32kHz domain,
3120 * and let enough time lapse, so that the wake signals have time to
3125 wke_32kwritel(pmc, 0, WAKE_LATCH_SW);
3127 bitmap_zero(pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3129 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3130 status = readl(pmc->wake + WAKE_AOWAKE_SW_STATUS(i));
3132 for_each_set_bit(wake, &status, 32)
3133 set_bit(wake + (i * 32), pmc->wake_sw_status_map);
3137 static void wke_clear_wake_status(struct tegra_pmc *pmc)
3139 unsigned long status;
3140 unsigned int i, wake;
3143 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3144 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3145 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3147 for_each_set_bit(wake, &status, 32)
3148 wke_32kwritel(pmc, 0x1, WAKE_AOWAKE_STATUS_W((i * 32) + wake));
3152 /* translate sc7 wake sources back into IRQs to catch edge triggered wakeups */
3153 static void tegra186_pmc_process_wake_events(struct tegra_pmc *pmc, unsigned int index,
3154 unsigned long status)
3158 dev_dbg(pmc->dev, "Wake[%d:%d] status=%#lx\n", (index * 32) + 31, index * 32, status);
3160 for_each_set_bit(wake, &status, 32) {
3161 irq_hw_number_t hwirq = wake + 32 * index;
3162 struct irq_desc *desc;
3165 irq = irq_find_mapping(pmc->domain, hwirq);
3167 desc = irq_to_desc(irq);
3168 if (!desc || !desc->action || !desc->action->name) {
3169 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, IRQ %d\n", hwirq, irq);
3173 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, %s\n", hwirq, desc->action->name);
3174 generic_handle_irq(irq);
3178 static void tegra186_pmc_wake_syscore_resume(void)
3183 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3184 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3185 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3187 tegra186_pmc_process_wake_events(pmc, i, status);
3191 static int tegra186_pmc_wake_syscore_suspend(void)
3193 wke_read_sw_wake_status(pmc);
3195 /* flip the wakeup trigger for dual-edge triggered pads
3196 * which are currently asserting as wakeups
3198 bitmap_andnot(pmc->wake_cntrl_level_map, pmc->wake_type_dual_edge_map,
3199 pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3200 bitmap_or(pmc->wake_cntrl_level_map, pmc->wake_cntrl_level_map,
3201 pmc->wake_type_level_map, pmc->soc->max_wake_events);
3203 /* Clear PMC Wake Status registers while going to suspend */
3204 wke_clear_wake_status(pmc);
3205 wke_write_wake_levels(pmc);
3210 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
3211 static int tegra_pmc_suspend(struct device *dev)
3213 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3215 tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41);
3220 static int tegra_pmc_resume(struct device *dev)
3222 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3224 tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41);
3229 static SIMPLE_DEV_PM_OPS(tegra_pmc_pm_ops, tegra_pmc_suspend, tegra_pmc_resume);
3233 static const char * const tegra20_powergates[] = {
3234 [TEGRA_POWERGATE_CPU] = "cpu",
3235 [TEGRA_POWERGATE_3D] = "td",
3236 [TEGRA_POWERGATE_VENC] = "venc",
3237 [TEGRA_POWERGATE_VDEC] = "vdec",
3238 [TEGRA_POWERGATE_PCIE] = "pcie",
3239 [TEGRA_POWERGATE_L2] = "l2",
3240 [TEGRA_POWERGATE_MPE] = "mpe",
3243 static const struct tegra_pmc_regs tegra20_pmc_regs = {
3245 .rst_status = 0x1b4,
3246 .rst_source_shift = 0x0,
3247 .rst_source_mask = 0x7,
3248 .rst_level_shift = 0x0,
3249 .rst_level_mask = 0x0,
3252 static void tegra20_pmc_init(struct tegra_pmc *pmc)
3254 u32 value, osc, pmu, off;
3256 /* Always enable CPU power request */
3257 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3258 value |= PMC_CNTRL_CPU_PWRREQ_OE;
3259 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3261 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3263 if (pmc->sysclkreq_high)
3264 value &= ~PMC_CNTRL_SYSCLK_POLARITY;
3266 value |= PMC_CNTRL_SYSCLK_POLARITY;
3268 if (pmc->corereq_high)
3269 value &= ~PMC_CNTRL_PWRREQ_POLARITY;
3271 value |= PMC_CNTRL_PWRREQ_POLARITY;
3273 /* configure the output polarity while the request is tristated */
3274 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3276 /* now enable the request */
3277 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3278 value |= PMC_CNTRL_SYSCLK_OE;
3279 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3281 /* program core timings which are applicable only for suspend state */
3282 if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) {
3283 osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000);
3284 pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000);
3285 off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000);
3286 tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff),
3287 PMC_COREPWRGOOD_TIMER);
3288 tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER);
3292 static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3293 struct device_node *np,
3298 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3301 value |= PMC_CNTRL_INTR_POLARITY;
3303 value &= ~PMC_CNTRL_INTR_POLARITY;
3305 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3308 static const struct tegra_pmc_soc tegra20_pmc_soc = {
3309 .supports_core_domain = true,
3310 .num_powergates = ARRAY_SIZE(tegra20_powergates),
3311 .powergates = tegra20_powergates,
3312 .num_cpu_powergates = 0,
3313 .cpu_powergates = NULL,
3314 .has_tsense_reset = false,
3315 .has_gpu_clamps = false,
3316 .needs_mbist_war = false,
3317 .has_impl_33v_pwr = false,
3318 .maybe_tz_only = false,
3323 .regs = &tegra20_pmc_regs,
3324 .init = tegra20_pmc_init,
3325 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3326 .powergate_set = tegra20_powergate_set,
3327 .reset_sources = NULL,
3328 .num_reset_sources = 0,
3329 .reset_levels = NULL,
3330 .num_reset_levels = 0,
3331 .pmc_clks_data = NULL,
3333 .has_blink_output = true,
3334 .has_usb_sleepwalk = true,
3337 static const char * const tegra30_powergates[] = {
3338 [TEGRA_POWERGATE_CPU] = "cpu0",
3339 [TEGRA_POWERGATE_3D] = "td",
3340 [TEGRA_POWERGATE_VENC] = "venc",
3341 [TEGRA_POWERGATE_VDEC] = "vdec",
3342 [TEGRA_POWERGATE_PCIE] = "pcie",
3343 [TEGRA_POWERGATE_L2] = "l2",
3344 [TEGRA_POWERGATE_MPE] = "mpe",
3345 [TEGRA_POWERGATE_HEG] = "heg",
3346 [TEGRA_POWERGATE_SATA] = "sata",
3347 [TEGRA_POWERGATE_CPU1] = "cpu1",
3348 [TEGRA_POWERGATE_CPU2] = "cpu2",
3349 [TEGRA_POWERGATE_CPU3] = "cpu3",
3350 [TEGRA_POWERGATE_CELP] = "celp",
3351 [TEGRA_POWERGATE_3D1] = "td2",
3354 static const u8 tegra30_cpu_powergates[] = {
3355 TEGRA_POWERGATE_CPU,
3356 TEGRA_POWERGATE_CPU1,
3357 TEGRA_POWERGATE_CPU2,
3358 TEGRA_POWERGATE_CPU3,
3361 static const char * const tegra30_reset_sources[] = {
3369 static const struct tegra_pmc_soc tegra30_pmc_soc = {
3370 .supports_core_domain = true,
3371 .num_powergates = ARRAY_SIZE(tegra30_powergates),
3372 .powergates = tegra30_powergates,
3373 .num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates),
3374 .cpu_powergates = tegra30_cpu_powergates,
3375 .has_tsense_reset = true,
3376 .has_gpu_clamps = false,
3377 .needs_mbist_war = false,
3378 .has_impl_33v_pwr = false,
3379 .maybe_tz_only = false,
3384 .regs = &tegra20_pmc_regs,
3385 .init = tegra20_pmc_init,
3386 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3387 .powergate_set = tegra20_powergate_set,
3388 .reset_sources = tegra30_reset_sources,
3389 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3390 .reset_levels = NULL,
3391 .num_reset_levels = 0,
3392 .pmc_clks_data = tegra_pmc_clks_data,
3393 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3394 .has_blink_output = true,
3395 .has_usb_sleepwalk = true,
3398 static const char * const tegra114_powergates[] = {
3399 [TEGRA_POWERGATE_CPU] = "crail",
3400 [TEGRA_POWERGATE_3D] = "td",
3401 [TEGRA_POWERGATE_VENC] = "venc",
3402 [TEGRA_POWERGATE_VDEC] = "vdec",
3403 [TEGRA_POWERGATE_MPE] = "mpe",
3404 [TEGRA_POWERGATE_HEG] = "heg",
3405 [TEGRA_POWERGATE_CPU1] = "cpu1",
3406 [TEGRA_POWERGATE_CPU2] = "cpu2",
3407 [TEGRA_POWERGATE_CPU3] = "cpu3",
3408 [TEGRA_POWERGATE_CELP] = "celp",
3409 [TEGRA_POWERGATE_CPU0] = "cpu0",
3410 [TEGRA_POWERGATE_C0NC] = "c0nc",
3411 [TEGRA_POWERGATE_C1NC] = "c1nc",
3412 [TEGRA_POWERGATE_DIS] = "dis",
3413 [TEGRA_POWERGATE_DISB] = "disb",
3414 [TEGRA_POWERGATE_XUSBA] = "xusba",
3415 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3416 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3419 static const u8 tegra114_cpu_powergates[] = {
3420 TEGRA_POWERGATE_CPU0,
3421 TEGRA_POWERGATE_CPU1,
3422 TEGRA_POWERGATE_CPU2,
3423 TEGRA_POWERGATE_CPU3,
3426 static const struct tegra_pmc_soc tegra114_pmc_soc = {
3427 .supports_core_domain = false,
3428 .num_powergates = ARRAY_SIZE(tegra114_powergates),
3429 .powergates = tegra114_powergates,
3430 .num_cpu_powergates = ARRAY_SIZE(tegra114_cpu_powergates),
3431 .cpu_powergates = tegra114_cpu_powergates,
3432 .has_tsense_reset = true,
3433 .has_gpu_clamps = false,
3434 .needs_mbist_war = false,
3435 .has_impl_33v_pwr = false,
3436 .maybe_tz_only = false,
3441 .regs = &tegra20_pmc_regs,
3442 .init = tegra20_pmc_init,
3443 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3444 .powergate_set = tegra114_powergate_set,
3445 .reset_sources = tegra30_reset_sources,
3446 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3447 .reset_levels = NULL,
3448 .num_reset_levels = 0,
3449 .pmc_clks_data = tegra_pmc_clks_data,
3450 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3451 .has_blink_output = true,
3452 .has_usb_sleepwalk = true,
3455 static const char * const tegra124_powergates[] = {
3456 [TEGRA_POWERGATE_CPU] = "crail",
3457 [TEGRA_POWERGATE_3D] = "3d",
3458 [TEGRA_POWERGATE_VENC] = "venc",
3459 [TEGRA_POWERGATE_PCIE] = "pcie",
3460 [TEGRA_POWERGATE_VDEC] = "vdec",
3461 [TEGRA_POWERGATE_MPE] = "mpe",
3462 [TEGRA_POWERGATE_HEG] = "heg",
3463 [TEGRA_POWERGATE_SATA] = "sata",
3464 [TEGRA_POWERGATE_CPU1] = "cpu1",
3465 [TEGRA_POWERGATE_CPU2] = "cpu2",
3466 [TEGRA_POWERGATE_CPU3] = "cpu3",
3467 [TEGRA_POWERGATE_CELP] = "celp",
3468 [TEGRA_POWERGATE_CPU0] = "cpu0",
3469 [TEGRA_POWERGATE_C0NC] = "c0nc",
3470 [TEGRA_POWERGATE_C1NC] = "c1nc",
3471 [TEGRA_POWERGATE_SOR] = "sor",
3472 [TEGRA_POWERGATE_DIS] = "dis",
3473 [TEGRA_POWERGATE_DISB] = "disb",
3474 [TEGRA_POWERGATE_XUSBA] = "xusba",
3475 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3476 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3477 [TEGRA_POWERGATE_VIC] = "vic",
3478 [TEGRA_POWERGATE_IRAM] = "iram",
3481 static const u8 tegra124_cpu_powergates[] = {
3482 TEGRA_POWERGATE_CPU0,
3483 TEGRA_POWERGATE_CPU1,
3484 TEGRA_POWERGATE_CPU2,
3485 TEGRA_POWERGATE_CPU3,
3488 #define TEGRA_IO_PAD(_id, _dpd, _request, _status, _voltage, _name) \
3489 ((struct tegra_io_pad_soc) { \
3492 .request = (_request), \
3493 .status = (_status), \
3494 .voltage = (_voltage), \
3498 #define TEGRA_IO_PIN_DESC(_id, _name) \
3499 ((struct pinctrl_pin_desc) { \
3504 static const struct tegra_io_pad_soc tegra124_io_pads[] = {
3505 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, UINT_MAX, "audio"),
3506 TEGRA_IO_PAD(TEGRA_IO_PAD_BB, 15, 0x1b8, 0x1bc, UINT_MAX, "bb"),
3507 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, UINT_MAX, "cam"),
3508 TEGRA_IO_PAD(TEGRA_IO_PAD_COMP, 22, 0x1b8, 0x1bc, UINT_MAX, "comp"),
3509 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3510 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3511 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3512 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3513 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3514 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3515 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3516 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3517 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3518 TEGRA_IO_PAD(TEGRA_IO_PAD_HV, 6, 0x1c0, 0x1c4, UINT_MAX, "hv"),
3519 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3520 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3521 TEGRA_IO_PAD(TEGRA_IO_PAD_NAND, 13, 0x1b8, 0x1bc, UINT_MAX, "nand"),
3522 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3523 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3524 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3525 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x1c0, 0x1c4, UINT_MAX, "pex-cntrl"),
3526 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, UINT_MAX, "sdmmc1"),
3527 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, UINT_MAX, "sdmmc3"),
3528 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 3, 0x1c0, 0x1c4, UINT_MAX, "sdmmc4"),
3529 TEGRA_IO_PAD(TEGRA_IO_PAD_SYS_DDC, 26, 0x1c0, 0x1c4, UINT_MAX, "sys_ddc"),
3530 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, UINT_MAX, "uart"),
3531 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3532 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3533 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3534 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb_bias"),
3537 static const struct pinctrl_pin_desc tegra124_pin_descs[] = {
3538 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3539 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_BB, "bb"),
3540 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3541 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_COMP, "comp"),
3542 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3543 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3544 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3545 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3546 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3547 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3548 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3549 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3550 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3551 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HV, "hv"),
3552 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3553 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3554 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_NAND, "nand"),
3555 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3556 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3557 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3558 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3559 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3560 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3561 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3562 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SYS_DDC, "sys_ddc"),
3563 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3564 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3565 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3566 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3567 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb_bias"),
3570 static const struct tegra_pmc_soc tegra124_pmc_soc = {
3571 .supports_core_domain = false,
3572 .num_powergates = ARRAY_SIZE(tegra124_powergates),
3573 .powergates = tegra124_powergates,
3574 .num_cpu_powergates = ARRAY_SIZE(tegra124_cpu_powergates),
3575 .cpu_powergates = tegra124_cpu_powergates,
3576 .has_tsense_reset = true,
3577 .has_gpu_clamps = true,
3578 .needs_mbist_war = false,
3579 .has_impl_33v_pwr = false,
3580 .maybe_tz_only = false,
3581 .num_io_pads = ARRAY_SIZE(tegra124_io_pads),
3582 .io_pads = tegra124_io_pads,
3583 .num_pin_descs = ARRAY_SIZE(tegra124_pin_descs),
3584 .pin_descs = tegra124_pin_descs,
3585 .regs = &tegra20_pmc_regs,
3586 .init = tegra20_pmc_init,
3587 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3588 .powergate_set = tegra114_powergate_set,
3589 .reset_sources = tegra30_reset_sources,
3590 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3591 .reset_levels = NULL,
3592 .num_reset_levels = 0,
3593 .pmc_clks_data = tegra_pmc_clks_data,
3594 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3595 .has_blink_output = true,
3596 .has_usb_sleepwalk = true,
3599 static const char * const tegra210_powergates[] = {
3600 [TEGRA_POWERGATE_CPU] = "crail",
3601 [TEGRA_POWERGATE_3D] = "3d",
3602 [TEGRA_POWERGATE_VENC] = "venc",
3603 [TEGRA_POWERGATE_PCIE] = "pcie",
3604 [TEGRA_POWERGATE_MPE] = "mpe",
3605 [TEGRA_POWERGATE_SATA] = "sata",
3606 [TEGRA_POWERGATE_CPU1] = "cpu1",
3607 [TEGRA_POWERGATE_CPU2] = "cpu2",
3608 [TEGRA_POWERGATE_CPU3] = "cpu3",
3609 [TEGRA_POWERGATE_CPU0] = "cpu0",
3610 [TEGRA_POWERGATE_C0NC] = "c0nc",
3611 [TEGRA_POWERGATE_SOR] = "sor",
3612 [TEGRA_POWERGATE_DIS] = "dis",
3613 [TEGRA_POWERGATE_DISB] = "disb",
3614 [TEGRA_POWERGATE_XUSBA] = "xusba",
3615 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3616 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3617 [TEGRA_POWERGATE_VIC] = "vic",
3618 [TEGRA_POWERGATE_IRAM] = "iram",
3619 [TEGRA_POWERGATE_NVDEC] = "nvdec",
3620 [TEGRA_POWERGATE_NVJPG] = "nvjpg",
3621 [TEGRA_POWERGATE_AUD] = "aud",
3622 [TEGRA_POWERGATE_DFD] = "dfd",
3623 [TEGRA_POWERGATE_VE2] = "ve2",
3626 static const u8 tegra210_cpu_powergates[] = {
3627 TEGRA_POWERGATE_CPU0,
3628 TEGRA_POWERGATE_CPU1,
3629 TEGRA_POWERGATE_CPU2,
3630 TEGRA_POWERGATE_CPU3,
3633 static const struct tegra_io_pad_soc tegra210_io_pads[] = {
3634 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, 5, "audio"),
3635 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x1c0, 0x1c4, 18, "audio-hv"),
3636 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, 10, "cam"),
3637 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3638 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3639 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 10, 0x1c0, 0x1c4, UINT_MAX, "csic"),
3640 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 11, 0x1c0, 0x1c4, UINT_MAX, "csid"),
3641 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3642 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 13, 0x1c0, 0x1c4, UINT_MAX, "csif"),
3643 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x1b8, 0x1bc, 19, "dbg"),
3644 TEGRA_IO_PAD(TEGRA_IO_PAD_DEBUG_NONAO, 26, 0x1b8, 0x1bc, UINT_MAX, "debug-nonao"),
3645 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC, 18, 0x1c0, 0x1c4, 20, "dmic"),
3646 TEGRA_IO_PAD(TEGRA_IO_PAD_DP, 19, 0x1c0, 0x1c4, UINT_MAX, "dp"),
3647 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3648 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3649 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3650 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3651 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC, 3, 0x1c0, 0x1c4, UINT_MAX, "emmc"),
3652 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC2, 5, 0x1c0, 0x1c4, UINT_MAX, "emmc2"),
3653 TEGRA_IO_PAD(TEGRA_IO_PAD_GPIO, 27, 0x1b8, 0x1bc, 21, "gpio"),
3654 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3655 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3656 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3657 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3658 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3659 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3660 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3661 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, UINT_MAX, UINT_MAX, UINT_MAX, 11, "pex-cntrl"),
3662 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, 12, "sdmmc1"),
3663 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, 13, "sdmmc3"),
3664 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 14, 0x1c0, 0x1c4, 22, "spi"),
3665 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI_HV, 15, 0x1c0, 0x1c4, 23, "spi-hv"),
3666 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, 2, "uart"),
3667 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3668 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3669 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3670 TEGRA_IO_PAD(TEGRA_IO_PAD_USB3, 18, 0x1b8, 0x1bc, UINT_MAX, "usb3"),
3671 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb-bias"),
3674 static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
3675 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3676 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3677 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3678 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3679 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3680 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3681 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3682 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3683 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3684 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3685 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DEBUG_NONAO, "debug-nonao"),
3686 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC, "dmic"),
3687 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DP, "dp"),
3688 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3689 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3690 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3691 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3692 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC, "emmc"),
3693 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC2, "emmc2"),
3694 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GPIO, "gpio"),
3695 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3696 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3697 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3698 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3699 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3700 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3701 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3702 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3703 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3704 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3705 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3706 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI_HV, "spi-hv"),
3707 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3708 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3709 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3710 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3711 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB3, "usb3"),
3712 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3715 static const char * const tegra210_reset_sources[] = {
3724 static const struct tegra_wake_event tegra210_wake_events[] = {
3725 TEGRA_WAKE_IRQ("rtc", 16, 2),
3726 TEGRA_WAKE_IRQ("pmu", 51, 86),
3729 static const struct tegra_pmc_soc tegra210_pmc_soc = {
3730 .supports_core_domain = false,
3731 .num_powergates = ARRAY_SIZE(tegra210_powergates),
3732 .powergates = tegra210_powergates,
3733 .num_cpu_powergates = ARRAY_SIZE(tegra210_cpu_powergates),
3734 .cpu_powergates = tegra210_cpu_powergates,
3735 .has_tsense_reset = true,
3736 .has_gpu_clamps = true,
3737 .needs_mbist_war = true,
3738 .has_impl_33v_pwr = false,
3739 .maybe_tz_only = true,
3740 .num_io_pads = ARRAY_SIZE(tegra210_io_pads),
3741 .io_pads = tegra210_io_pads,
3742 .num_pin_descs = ARRAY_SIZE(tegra210_pin_descs),
3743 .pin_descs = tegra210_pin_descs,
3744 .regs = &tegra20_pmc_regs,
3745 .init = tegra20_pmc_init,
3746 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3747 .powergate_set = tegra114_powergate_set,
3748 .irq_set_wake = tegra210_pmc_irq_set_wake,
3749 .irq_set_type = tegra210_pmc_irq_set_type,
3750 .reset_sources = tegra210_reset_sources,
3751 .num_reset_sources = ARRAY_SIZE(tegra210_reset_sources),
3752 .reset_levels = NULL,
3753 .num_reset_levels = 0,
3754 .num_wake_events = ARRAY_SIZE(tegra210_wake_events),
3755 .wake_events = tegra210_wake_events,
3756 .pmc_clks_data = tegra_pmc_clks_data,
3757 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3758 .has_blink_output = true,
3759 .has_usb_sleepwalk = true,
3762 static const struct tegra_io_pad_soc tegra186_io_pads[] = {
3763 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3764 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3765 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x74, 0x78, UINT_MAX, "dsi"),
3766 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3767 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3768 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3769 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3770 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3771 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x74, 0x78, UINT_MAX, "usb0"),
3772 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x74, 0x78, UINT_MAX, "usb1"),
3773 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x74, 0x78, UINT_MAX, "usb2"),
3774 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x74, 0x78, UINT_MAX, "usb-bias"),
3775 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3776 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3777 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x74, 0x78, UINT_MAX, "hsic"),
3778 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3779 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3780 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3781 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3782 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC2_HV, 2, 0x7c, 0x80, 5, "sdmmc2-hv"),
3783 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3784 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3785 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 8, 0x7c, 0x80, UINT_MAX, "dsib"),
3786 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 9, 0x7c, 0x80, UINT_MAX, "dsic"),
3787 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 10, 0x7c, 0x80, UINT_MAX, "dsid"),
3788 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3789 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3790 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3791 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3792 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3793 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3794 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC_HV, 20, 0x7c, 0x80, 2, "dmic-hv"),
3795 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
3796 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3797 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3798 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
3799 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3800 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3803 static const struct pinctrl_pin_desc tegra186_pin_descs[] = {
3804 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3805 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3806 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3807 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3808 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3809 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3810 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3811 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3812 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3813 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3814 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3815 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3816 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3817 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3818 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3819 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3820 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
3821 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
3822 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3823 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC2_HV, "sdmmc2-hv"),
3824 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3825 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3826 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3827 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3828 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3829 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3830 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3831 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3832 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3833 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3834 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
3835 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC_HV, "dmic-hv"),
3836 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
3837 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
3838 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
3839 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
3840 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3841 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
3844 static const struct tegra_pmc_regs tegra186_pmc_regs = {
3847 .rst_source_shift = 0x2,
3848 .rst_source_mask = 0x3c,
3849 .rst_level_shift = 0x0,
3850 .rst_level_mask = 0x3,
3853 static void tegra186_pmc_init(struct tegra_pmc *pmc)
3855 pmc->syscore.suspend = tegra186_pmc_wake_syscore_suspend;
3856 pmc->syscore.resume = tegra186_pmc_wake_syscore_resume;
3858 register_syscore_ops(&pmc->syscore);
3861 static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3862 struct device_node *np,
3865 struct resource regs;
3870 index = of_property_match_string(np, "reg-names", "wake");
3872 dev_err(pmc->dev, "failed to find PMC wake registers\n");
3876 of_address_to_resource(np, index, ®s);
3878 wake = ioremap(regs.start, resource_size(®s));
3880 dev_err(pmc->dev, "failed to map PMC wake registers\n");
3884 value = readl(wake + WAKE_AOWAKE_CTRL);
3887 value |= WAKE_AOWAKE_CTRL_INTR_POLARITY;
3889 value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY;
3891 writel(value, wake + WAKE_AOWAKE_CTRL);
3896 static const char * const tegra186_reset_sources[] = {
3914 static const char * const tegra186_reset_levels[] = {
3915 "L0", "L1", "L2", "WARM"
3918 static const struct tegra_wake_event tegra186_wake_events[] = {
3919 TEGRA_WAKE_IRQ("pmu", 24, 209),
3920 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA186_AON_GPIO(FF, 0)),
3921 TEGRA_WAKE_IRQ("rtc", 73, 10),
3924 static const struct tegra_pmc_soc tegra186_pmc_soc = {
3925 .supports_core_domain = false,
3926 .num_powergates = 0,
3928 .num_cpu_powergates = 0,
3929 .cpu_powergates = NULL,
3930 .has_tsense_reset = false,
3931 .has_gpu_clamps = false,
3932 .needs_mbist_war = false,
3933 .has_impl_33v_pwr = true,
3934 .maybe_tz_only = false,
3935 .num_io_pads = ARRAY_SIZE(tegra186_io_pads),
3936 .io_pads = tegra186_io_pads,
3937 .num_pin_descs = ARRAY_SIZE(tegra186_pin_descs),
3938 .pin_descs = tegra186_pin_descs,
3939 .regs = &tegra186_pmc_regs,
3940 .init = tegra186_pmc_init,
3941 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
3942 .set_wake_filters = tegra186_pmc_set_wake_filters,
3943 .irq_set_wake = tegra186_pmc_irq_set_wake,
3944 .irq_set_type = tegra186_pmc_irq_set_type,
3945 .reset_sources = tegra186_reset_sources,
3946 .num_reset_sources = ARRAY_SIZE(tegra186_reset_sources),
3947 .reset_levels = tegra186_reset_levels,
3948 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
3949 .num_wake_events = ARRAY_SIZE(tegra186_wake_events),
3950 .wake_events = tegra186_wake_events,
3951 .max_wake_events = 96,
3952 .max_wake_vectors = 3,
3953 .pmc_clks_data = NULL,
3955 .has_blink_output = false,
3956 .has_usb_sleepwalk = false,
3959 static const struct tegra_io_pad_soc tegra194_io_pads[] = {
3960 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3961 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3962 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3963 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3964 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3965 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3966 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3967 TEGRA_IO_PAD(TEGRA_IO_PAD_EQOS, 8, 0x74, 0x78, UINT_MAX, "eqos"),
3968 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2_BIAS, 9, 0x74, 0x78, UINT_MAX, "pex-clk-2-bias"),
3969 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2, 10, 0x74, 0x78, UINT_MAX, "pex-clk-2"),
3970 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP3, 11, 0x74, 0x78, UINT_MAX, "dap3"),
3971 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP5, 12, 0x74, 0x78, UINT_MAX, "dap5"),
3972 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3973 TEGRA_IO_PAD(TEGRA_IO_PAD_PWR_CTL, 15, 0x74, 0x78, UINT_MAX, "pwr-ctl"),
3974 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO53, 16, 0x74, 0x78, UINT_MAX, "soc-gpio53"),
3975 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3976 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM2, 18, 0x74, 0x78, UINT_MAX, "gp-pwm2"),
3977 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM3, 19, 0x74, 0x78, UINT_MAX, "gp-pwm3"),
3978 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO12, 20, 0x74, 0x78, UINT_MAX, "soc-gpio12"),
3979 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO13, 21, 0x74, 0x78, UINT_MAX, "soc-gpio13"),
3980 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO10, 22, 0x74, 0x78, UINT_MAX, "soc-gpio10"),
3981 TEGRA_IO_PAD(TEGRA_IO_PAD_UART4, 23, 0x74, 0x78, UINT_MAX, "uart4"),
3982 TEGRA_IO_PAD(TEGRA_IO_PAD_UART5, 24, 0x74, 0x78, UINT_MAX, "uart5"),
3983 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3984 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP3, 26, 0x74, 0x78, UINT_MAX, "hdmi-dp3"),
3985 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP2, 27, 0x74, 0x78, UINT_MAX, "hdmi-dp2"),
3986 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3987 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3988 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3989 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CTL2, 1, 0x7c, 0x80, UINT_MAX, "pex-ctl2"),
3990 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L0_RST, 2, 0x7c, 0x80, UINT_MAX, "pex-l0-rst"),
3991 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L1_RST, 3, 0x7c, 0x80, UINT_MAX, "pex-l1-rst"),
3992 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3993 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L5_RST, 5, 0x7c, 0x80, UINT_MAX, "pex-l5-rst"),
3994 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3995 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3996 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3997 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3998 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3999 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
4000 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
4001 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 18, 0x7c, 0x80, UINT_MAX, "csig"),
4002 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 19, 0x7c, 0x80, UINT_MAX, "csih"),
4003 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
4004 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
4005 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
4006 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
4007 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
4008 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4011 static const struct pinctrl_pin_desc tegra194_pin_descs[] = {
4012 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4013 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4014 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
4015 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
4016 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
4017 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
4018 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
4019 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EQOS, "eqos"),
4020 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2_BIAS, "pex-clk-2-bias"),
4021 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2, "pex-clk-2"),
4022 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP3, "dap3"),
4023 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP5, "dap5"),
4024 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
4025 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PWR_CTL, "pwr-ctl"),
4026 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO53, "soc-gpio53"),
4027 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
4028 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM2, "gp-pwm2"),
4029 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM3, "gp-pwm3"),
4030 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO12, "soc-gpio12"),
4031 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO13, "soc-gpio13"),
4032 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO10, "soc-gpio10"),
4033 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART4, "uart4"),
4034 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART5, "uart5"),
4035 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
4036 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP3, "hdmi-dp3"),
4037 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP2, "hdmi-dp2"),
4038 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4039 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
4040 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
4041 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CTL2, "pex-ctl2"),
4042 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L0_RST, "pex-l0-rst"),
4043 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L1_RST, "pex-l1-rst"),
4044 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
4045 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L5_RST, "pex-l5-rst"),
4046 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
4047 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4048 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4049 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4050 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4051 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
4052 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4053 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4054 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4055 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4056 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4057 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4058 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
4059 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4060 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4063 static const struct tegra_pmc_regs tegra194_pmc_regs = {
4066 .rst_source_shift = 0x2,
4067 .rst_source_mask = 0x7c,
4068 .rst_level_shift = 0x0,
4069 .rst_level_mask = 0x3,
4072 static const char * const tegra194_reset_sources[] = {
4096 static const struct tegra_wake_event tegra194_wake_events[] = {
4097 TEGRA_WAKE_IRQ("pmu", 24, 209),
4098 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA194_AON_GPIO(EE, 4)),
4099 TEGRA_WAKE_IRQ("rtc", 73, 10),
4100 TEGRA_WAKE_SIMPLE("usb3-port-0", 76),
4101 TEGRA_WAKE_SIMPLE("usb3-port-1", 77),
4102 TEGRA_WAKE_SIMPLE("usb3-port-2-3", 78),
4103 TEGRA_WAKE_SIMPLE("usb2-port-0", 79),
4104 TEGRA_WAKE_SIMPLE("usb2-port-1", 80),
4105 TEGRA_WAKE_SIMPLE("usb2-port-2", 81),
4106 TEGRA_WAKE_SIMPLE("usb2-port-3", 82),
4109 static const struct tegra_pmc_soc tegra194_pmc_soc = {
4110 .supports_core_domain = false,
4111 .num_powergates = 0,
4113 .num_cpu_powergates = 0,
4114 .cpu_powergates = NULL,
4115 .has_tsense_reset = false,
4116 .has_gpu_clamps = false,
4117 .needs_mbist_war = false,
4118 .has_impl_33v_pwr = true,
4119 .maybe_tz_only = false,
4120 .num_io_pads = ARRAY_SIZE(tegra194_io_pads),
4121 .io_pads = tegra194_io_pads,
4122 .num_pin_descs = ARRAY_SIZE(tegra194_pin_descs),
4123 .pin_descs = tegra194_pin_descs,
4124 .regs = &tegra194_pmc_regs,
4125 .init = tegra186_pmc_init,
4126 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4127 .set_wake_filters = tegra186_pmc_set_wake_filters,
4128 .irq_set_wake = tegra186_pmc_irq_set_wake,
4129 .irq_set_type = tegra186_pmc_irq_set_type,
4130 .reset_sources = tegra194_reset_sources,
4131 .num_reset_sources = ARRAY_SIZE(tegra194_reset_sources),
4132 .reset_levels = tegra186_reset_levels,
4133 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4134 .num_wake_events = ARRAY_SIZE(tegra194_wake_events),
4135 .wake_events = tegra194_wake_events,
4136 .max_wake_events = 96,
4137 .max_wake_vectors = 3,
4138 .pmc_clks_data = NULL,
4140 .has_blink_output = false,
4141 .has_usb_sleepwalk = false,
4144 static const struct tegra_io_pad_soc tegra234_io_pads[] = {
4145 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0xe0c0, 0xe0c4, UINT_MAX, "csia"),
4146 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0xe0c0, 0xe0c4, UINT_MAX, "csib"),
4147 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 0, 0xe0d0, 0xe0d4, UINT_MAX, "hdmi-dp0"),
4148 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 2, 0xe0c0, 0xe0c4, UINT_MAX, "csic"),
4149 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 3, 0xe0c0, 0xe0c4, UINT_MAX, "csid"),
4150 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 4, 0xe0c0, 0xe0c4, UINT_MAX, "csie"),
4151 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 5, 0xe0c0, 0xe0c4, UINT_MAX, "csif"),
4152 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 0, 0xe064, 0xe068, UINT_MAX, "ufs"),
4153 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 1, 0xe05c, 0xe060, UINT_MAX, "edp"),
4154 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 0, 0xe054, 0xe058, 4, "sdmmc1-hv"),
4155 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, UINT_MAX, UINT_MAX, UINT_MAX, 6, "sdmmc3-hv"),
4156 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 1, "audio-hv"),
4157 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4158 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 6, 0xe0c0, 0xe0c4, UINT_MAX, "csig"),
4159 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 7, 0xe0c0, 0xe0c4, UINT_MAX, "csih"),
4162 static const struct pinctrl_pin_desc tegra234_pin_descs[] = {
4163 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4164 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4165 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4166 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4167 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4168 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4169 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4170 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4171 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4172 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4173 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4174 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4175 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4176 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4177 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4180 static const struct tegra_pmc_regs tegra234_pmc_regs = {
4183 .rst_source_shift = 0x2,
4184 .rst_source_mask = 0xfc,
4185 .rst_level_shift = 0x0,
4186 .rst_level_mask = 0x3,
4189 static const char * const tegra234_reset_sources[] = {
4190 "SYS_RESET_N", /* 0x0 */
4214 "CSITE_SW", /* 0x18 */
4222 "FSI_R52C0WDT", /* 0x20 */
4227 "FSI_VMON", /* 0x25 */
4230 static const struct tegra_wake_event tegra234_wake_events[] = {
4231 TEGRA_WAKE_IRQ("pmu", 24, 209),
4232 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
4233 TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
4234 TEGRA_WAKE_IRQ("rtc", 73, 10),
4235 TEGRA_WAKE_IRQ("sw-wake", SW_WAKE_ID, 179),
4238 static const struct tegra_pmc_soc tegra234_pmc_soc = {
4239 .supports_core_domain = false,
4240 .num_powergates = 0,
4242 .num_cpu_powergates = 0,
4243 .cpu_powergates = NULL,
4244 .has_tsense_reset = false,
4245 .has_gpu_clamps = false,
4246 .needs_mbist_war = false,
4247 .has_impl_33v_pwr = true,
4248 .maybe_tz_only = false,
4249 .num_io_pads = ARRAY_SIZE(tegra234_io_pads),
4250 .io_pads = tegra234_io_pads,
4251 .num_pin_descs = ARRAY_SIZE(tegra234_pin_descs),
4252 .pin_descs = tegra234_pin_descs,
4253 .regs = &tegra234_pmc_regs,
4254 .init = tegra186_pmc_init,
4255 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4256 .set_wake_filters = tegra186_pmc_set_wake_filters,
4257 .irq_set_wake = tegra186_pmc_irq_set_wake,
4258 .irq_set_type = tegra186_pmc_irq_set_type,
4259 .reset_sources = tegra234_reset_sources,
4260 .num_reset_sources = ARRAY_SIZE(tegra234_reset_sources),
4261 .reset_levels = tegra186_reset_levels,
4262 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4263 .num_wake_events = ARRAY_SIZE(tegra234_wake_events),
4264 .wake_events = tegra234_wake_events,
4265 .max_wake_events = 96,
4266 .max_wake_vectors = 3,
4267 .pmc_clks_data = NULL,
4269 .has_blink_output = false,
4272 static const struct of_device_id tegra_pmc_match[] = {
4273 { .compatible = "nvidia,tegra234-pmc", .data = &tegra234_pmc_soc },
4274 { .compatible = "nvidia,tegra194-pmc", .data = &tegra194_pmc_soc },
4275 { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc },
4276 { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc },
4277 { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc },
4278 { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc },
4279 { .compatible = "nvidia,tegra114-pmc", .data = &tegra114_pmc_soc },
4280 { .compatible = "nvidia,tegra30-pmc", .data = &tegra30_pmc_soc },
4281 { .compatible = "nvidia,tegra20-pmc", .data = &tegra20_pmc_soc },
4285 static void tegra_pmc_sync_state(struct device *dev)
4290 * Newer device-trees have power domains, but we need to prepare all
4291 * device drivers with runtime PM and OPP support first, otherwise
4292 * state syncing is unsafe.
4294 if (!pmc->soc->supports_core_domain)
4298 * Older device-trees don't have core PD, and thus, there are
4299 * no dependencies that will block the state syncing. We shouldn't
4300 * mark the domain as synced in this case.
4302 if (!pmc->core_domain_registered)
4305 pmc->core_domain_state_synced = true;
4307 /* this is a no-op if core regulator isn't used */
4308 mutex_lock(&pmc->powergates_lock);
4309 err = dev_pm_opp_sync_regulators(dev);
4310 mutex_unlock(&pmc->powergates_lock);
4313 dev_err(dev, "failed to sync regulators: %d\n", err);
4316 static struct platform_driver tegra_pmc_driver = {
4318 .name = "tegra-pmc",
4319 .suppress_bind_attrs = true,
4320 .of_match_table = tegra_pmc_match,
4321 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
4322 .pm = &tegra_pmc_pm_ops,
4324 .sync_state = tegra_pmc_sync_state,
4326 .probe = tegra_pmc_probe,
4328 builtin_platform_driver(tegra_pmc_driver);
4330 static bool __init tegra_pmc_detect_tz_only(struct tegra_pmc *pmc)
4334 saved = readl(pmc->base + pmc->soc->regs->scratch0);
4335 value = saved ^ 0xffffffff;
4337 if (value == 0xffffffff)
4340 /* write pattern and read it back */
4341 writel(value, pmc->base + pmc->soc->regs->scratch0);
4342 value = readl(pmc->base + pmc->soc->regs->scratch0);
4344 /* if we read all-zeroes, access is restricted to TZ only */
4346 pr_info("access to PMC is restricted to TZ\n");
4350 /* restore original value */
4351 writel(saved, pmc->base + pmc->soc->regs->scratch0);
4357 * Early initialization to allow access to registers in the very early boot
4360 static int __init tegra_pmc_early_init(void)
4362 const struct of_device_id *match;
4363 struct device_node *np;
4364 struct resource regs;
4368 mutex_init(&pmc->powergates_lock);
4370 np = of_find_matching_node_and_match(NULL, tegra_pmc_match, &match);
4373 * Fall back to legacy initialization for 32-bit ARM only. All
4374 * 64-bit ARM device tree files for Tegra are required to have
4377 * This is for backwards-compatibility with old device trees
4378 * that didn't contain a PMC node. Note that in this case the
4379 * SoC data can't be matched and therefore powergating is
4382 if (IS_ENABLED(CONFIG_ARM) && soc_is_tegra()) {
4383 pr_warn("DT node not found, powergating disabled\n");
4385 regs.start = 0x7000e400;
4386 regs.end = 0x7000e7ff;
4387 regs.flags = IORESOURCE_MEM;
4389 pr_warn("Using memory region %pR\n", ®s);
4392 * At this point we're not running on Tegra, so play
4393 * nice with multi-platform kernels.
4399 * Extract information from the device tree if we've found a
4402 if (of_address_to_resource(np, 0, ®s) < 0) {
4403 pr_err("failed to get PMC registers\n");
4409 pmc->base = ioremap(regs.start, resource_size(®s));
4411 pr_err("failed to map PMC registers\n");
4416 if (of_device_is_available(np)) {
4417 pmc->soc = match->data;
4419 if (pmc->soc->maybe_tz_only)
4420 pmc->tz_only = tegra_pmc_detect_tz_only(pmc);
4422 /* Create a bitmap of the available and valid partitions */
4423 for (i = 0; i < pmc->soc->num_powergates; i++)
4424 if (pmc->soc->powergates[i])
4425 set_bit(i, pmc->powergates_available);
4428 * Invert the interrupt polarity if a PMC device tree node
4429 * exists and contains the nvidia,invert-interrupt property.
4431 invert = of_property_read_bool(np, "nvidia,invert-interrupt");
4433 pmc->soc->setup_irq_polarity(pmc, np, invert);
4440 early_initcall(tegra_pmc_early_init);