1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2019 Google LLC
4 * Written by Simon Glass <sjg@chromium.org>
15 #include <acpi/acpi_s3.h>
16 #include <asm/intel_pinctrl.h>
18 #include <asm/intel_regs.h>
20 #include <asm/msr-index.h>
22 #include <asm/arch/cpu.h>
23 #include <asm/arch/systemagent.h>
24 #include <asm/arch/fsp/fsp_configs.h>
25 #include <asm/arch/fsp/fsp_s_upd.h>
26 #include <linux/bitops.h>
28 #define PCH_P2SB_E0 0xe0
29 #define HIDE_BIT BIT(0)
31 #define INTEL_GSPI_MAX 3
32 #define MAX_USB2_PORTS 8
35 CHIPSET_LOCKDOWN_FSP = 0, /* FSP handles locking per UPDs */
36 CHIPSET_LOCKDOWN_COREBOOT, /* coreboot handles locking */
39 /* Serial IRQ control. SERIRQ_QUIET is the default (0) */
47 /* Bus speed in MHz */
49 /* Bus should be enabled prior to ramstage with temporary base */
54 * This structure will hold data required by common blocks.
55 * These are soc specific configurations which will be filled by soc.
56 * We'll fill this structure once during init and use the data in common block.
58 struct soc_intel_common_config {
60 struct gspi_cfg gspi[INTEL_GSPI_MAX];
69 struct usb2_eye_per_port {
70 u8 per_port_tx_pe_half;
71 u8 per_port_pe_txi_set;
74 u8 usb_tx_emphasis_en;
81 /* Common structure containing soc config data required by common code*/
82 struct soc_intel_common_config common_soc_config;
85 * Mapping from PCIe root port to CLKREQ input on the SOC. The SOC has
86 * four CLKREQ inputs, but six root ports. Root ports without an
87 * associated CLKREQ signal must be marked with "CLKREQ_DISABLED"
89 u8 pcie_rp_clkreq_pin[MAX_PCIE_PORTS];
91 /* Enable/disable hot-plug for root ports (0 = disable, 1 = enable) */
92 u8 pcie_rp_hotplug_enable[MAX_PCIE_PORTS];
94 /* De-emphasis enable configuration for each PCIe root port */
95 u8 pcie_rp_deemphasis_enable[MAX_PCIE_PORTS];
98 * [14:8] DDR mode Number of dealy elements.Each = 125pSec.
99 * [6:0] SDR mode Number of dealy elements.Each = 125pSec.
101 u32 emmc_tx_cmd_cntl;
104 * [14:8] HS400 mode Number of dealy elements.Each = 125pSec.
105 * [6:0] SDR104/HS200 mode Number of dealy elements.Each = 125pSec.
107 u32 emmc_tx_data_cntl1;
110 * [30:24] SDR50 mode Number of dealy elements.Each = 125pSec.
111 * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec.
112 * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec.
113 * [6:0] SDR12/Compatibility mode Number of dealy elements.
116 u32 emmc_tx_data_cntl2;
119 * [30:24] SDR50 mode Number of dealy elements.Each = 125pSec.
120 * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec.
121 * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec.
122 * [6:0] SDR12/Compatibility mode Number of dealy elements.
125 u32 emmc_rx_cmd_data_cntl1;
128 * [14:8] HS400 mode 1 Number of dealy elements.Each = 125pSec.
129 * [6:0] HS400 mode 2 Number of dealy elements.Each = 125pSec.
131 u32 emmc_rx_strobe_cntl;
134 * [13:8] Auto Tuning mode Number of dealy elements.Each = 125pSec.
135 * [6:0] SDR104/HS200 Number of dealy elements.Each = 125pSec.
137 u32 emmc_rx_cmd_data_cntl2;
139 /* Select the eMMC max speed allowed */
140 u32 emmc_host_max_speed;
142 /* Specifies on which IRQ the SCI will internally appear */
145 /* Configure serial IRQ (SERIRQ) line */
146 enum serirq_mode serirq_mode;
148 /* Configure LPSS S0ix Enable */
149 bool lpss_s0ix_enable;
151 /* Enable DPTF support */
154 /* TCC activation offset value in degrees Celsius */
158 * Configure Audio clk gate and power gate
159 * IOSF-SB port ID 92 offset 0x530 [5] and [3]
161 bool hdaudio_clk_gate_enable;
162 bool hdaudio_pwr_gate_enable;
163 bool hdaudio_bios_config_lockdown;
165 /* SLP S3 minimum assertion width */
166 int slp_s3_assertion_width_usecs;
168 /* GPIO pin for PERST_0 */
171 /* USB2 eye diagram settings per port */
172 struct usb2_eye_per_port usb2eye[MAX_USB2_PORTS];
174 /* GPIO SD card detect pin */
175 unsigned int sdcard_cd_gpio;
178 * PRMRR size setting with three options
181 * 0x08000000 - 128MiB
186 * Enable SGX feature.
187 * Enabling SGX feature is 2 step process,
188 * (1) set sgx_enable = 1
189 * (2) set PrmrrSize to supported size
194 * Select PNP Settings.
197 * (2) Power & Performance
199 enum pnp_settings pnp_settings;
202 * PMIC PCH_PWROK delay configuration - IPC Configuration
203 * Upd for changing PCH_PWROK delay configuration : I2C_Slave_Address
204 * (31:24) + Register_Offset (23:16) + OR Value (15:8) + AND Value (7:0)
206 u32 pmic_pmc_ipc_ctrl;
209 * Options to disable XHCI Link Compliance Mode. Default is FALSE to not
210 * disable Compliance Mode. Set TRUE to disable Compliance Mode.
211 * 0:FALSE(Default), 1:True.
213 bool disable_compliance_mode;
216 * Options to change USB3 ModPhy setting for the Integrated Filter (IF)
217 * value. Default is 0 to not changing default IF value (0x12). Set
218 * value with the range from 0x01 to 0xff to change IF value.
220 u32 mod_phy_if_value;
223 * Options to bump USB3 LDO voltage. Default is FALSE to not increasing
224 * LDO voltage. Set TRUE to increase LDO voltage with 40mV.
225 * 0:FALSE (default), 1:True.
227 bool mod_phy_voltage_bump;
230 * Options to adjust PMIC Vdd2 voltage. Default is 0 to not adjusting
231 * the PMIC Vdd2 default voltage 1.20v. Upd for changing Vdd2 Voltage
232 * configuration: I2C_Slave_Address (31:23) + Register_Offset (23:16)
233 * + OR Value (15:8) + AND Value (7:0) through BUCK5_VID[3:2]:
234 * 00=1.10v, 01=1.15v, 10=1.24v, 11=1.20v (default).
236 u32 pmic_vdd2_voltage;
238 /* Option to enable VTD feature */
242 static int get_config(struct udevice *dev, struct apl_config *apl)
249 memset(apl, '\0', sizeof(*apl));
251 node = dev_read_subnode(dev, "fsp-s");
252 if (!ofnode_valid(node))
253 return log_msg_ret("fsp-s settings", -ENOENT);
255 ptr = ofnode_read_u8_array_ptr(node, "pcie-rp-clkreq-pin",
258 return log_msg_ret("pcie-rp-clkreq-pin", -EINVAL);
259 memcpy(apl->pcie_rp_clkreq_pin, ptr, MAX_PCIE_PORTS);
261 ret = ofnode_read_u32(node, "prt0-gpio", &apl->prt0_gpio);
263 return log_msg_ret("prt0-gpio", ret);
264 ret = ofnode_read_u32(node, "sdcard-cd-gpio", &apl->sdcard_cd_gpio);
266 return log_msg_ret("sdcard-cd-gpio", ret);
268 ret = ofnode_read_u32_array(node, "emmc", emmc, ARRAY_SIZE(emmc));
270 return log_msg_ret("emmc", ret);
271 apl->emmc_tx_data_cntl1 = emmc[0];
272 apl->emmc_tx_data_cntl2 = emmc[1];
273 apl->emmc_rx_cmd_data_cntl1 = emmc[2];
274 apl->emmc_rx_cmd_data_cntl2 = emmc[3];
276 apl->dptf_enable = ofnode_read_bool(node, "dptf-enable");
278 apl->hdaudio_clk_gate_enable = ofnode_read_bool(node,
279 "hdaudio-clk-gate-enable");
280 apl->hdaudio_pwr_gate_enable = ofnode_read_bool(node,
281 "hdaudio-pwr-gate-enable");
282 apl->hdaudio_bios_config_lockdown = ofnode_read_bool(node,
283 "hdaudio-bios-config-lockdown");
284 apl->lpss_s0ix_enable = ofnode_read_bool(node, "lpss-s0ix-enable");
287 apl->usb2eye[1].per_port_pe_txi_set = 7;
288 apl->usb2eye[1].per_port_txi_set = 2;
293 static void apl_fsp_silicon_init_params_cb(struct apl_config *apl,
294 struct fsp_s_config *cfg)
298 for (port = 0; port < MAX_USB2_PORTS; port++) {
299 if (apl->usb2eye[port].per_port_tx_pe_half)
300 cfg->port_usb20_per_port_tx_pe_half[port] =
301 apl->usb2eye[port].per_port_tx_pe_half;
303 if (apl->usb2eye[port].per_port_pe_txi_set)
304 cfg->port_usb20_per_port_pe_txi_set[port] =
305 apl->usb2eye[port].per_port_pe_txi_set;
307 if (apl->usb2eye[port].per_port_txi_set)
308 cfg->port_usb20_per_port_txi_set[port] =
309 apl->usb2eye[port].per_port_txi_set;
311 if (apl->usb2eye[port].hs_skew_sel)
312 cfg->port_usb20_hs_skew_sel[port] =
313 apl->usb2eye[port].hs_skew_sel;
315 if (apl->usb2eye[port].usb_tx_emphasis_en)
316 cfg->port_usb20_i_usb_tx_emphasis_en[port] =
317 apl->usb2eye[port].usb_tx_emphasis_en;
319 if (apl->usb2eye[port].per_port_rxi_set)
320 cfg->port_usb20_per_port_rxi_set[port] =
321 apl->usb2eye[port].per_port_rxi_set;
323 if (apl->usb2eye[port].hs_npre_drv_sel)
324 cfg->port_usb20_hs_npre_drv_sel[port] =
325 apl->usb2eye[port].hs_npre_drv_sel;
329 int fsps_update_config(struct udevice *dev, ulong rom_offset,
330 struct fsps_upd *upd)
332 struct fsp_s_config *cfg = &upd->config;
333 struct apl_config *apl;
334 struct binman_entry vbt;
338 ret = binman_entry_find("intel-vbt", &vbt);
340 return log_msg_ret("Cannot find VBT", ret);
341 vbt.image_pos += rom_offset;
342 buf = malloc(vbt.size);
344 return log_msg_ret("Alloc VBT", -ENOMEM);
347 * Load VBT before devicetree-specific config. This only supports
348 * memory-mapped SPI at present.
350 bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
351 memcpy(buf, (void *)vbt.image_pos, vbt.size);
352 bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
353 if (*(u32 *)buf != VBT_SIGNATURE)
354 return log_msg_ret("VBT signature", -EINVAL);
355 cfg->graphics_config_ptr = (ulong)buf;
357 apl = malloc(sizeof(*apl));
359 return log_msg_ret("config", -ENOMEM);
360 get_config(dev, apl);
363 cfg->enable_sata = 0;
364 cfg->pcie_root_port_en[2] = 0;
365 cfg->pcie_rp_hot_plug[2] = 0;
366 cfg->pcie_root_port_en[3] = 0;
367 cfg->pcie_rp_hot_plug[3] = 0;
368 cfg->pcie_root_port_en[4] = 0;
369 cfg->pcie_rp_hot_plug[4] = 0;
370 cfg->pcie_root_port_en[5] = 0;
371 cfg->pcie_rp_hot_plug[5] = 0;
372 cfg->pcie_root_port_en[1] = 0;
373 cfg->pcie_rp_hot_plug[1] = 0;
375 cfg->i2c6_enable = 0;
376 cfg->i2c7_enable = 0;
377 cfg->hsuart3_enable = 0;
378 cfg->spi1_enable = 0;
379 cfg->spi2_enable = 0;
380 cfg->sdio_enabled = 0;
382 memcpy(cfg->pcie_rp_clk_req_number, apl->pcie_rp_clkreq_pin,
383 sizeof(cfg->pcie_rp_clk_req_number));
385 memcpy(cfg->pcie_rp_hot_plug, apl->pcie_rp_hotplug_enable,
386 sizeof(cfg->pcie_rp_hot_plug));
388 switch (apl->serirq_mode) {
390 cfg->sirq_enable = 1;
393 case SERIRQ_CONTINUOUS:
394 cfg->sirq_enable = 1;
399 cfg->sirq_enable = 0;
403 if (apl->emmc_tx_cmd_cntl)
404 cfg->emmc_tx_cmd_cntl = apl->emmc_tx_cmd_cntl;
405 if (apl->emmc_tx_data_cntl1)
406 cfg->emmc_tx_data_cntl1 = apl->emmc_tx_data_cntl1;
407 if (apl->emmc_tx_data_cntl2)
408 cfg->emmc_tx_data_cntl2 = apl->emmc_tx_data_cntl2;
409 if (apl->emmc_rx_cmd_data_cntl1)
410 cfg->emmc_rx_cmd_data_cntl1 = apl->emmc_rx_cmd_data_cntl1;
411 if (apl->emmc_rx_strobe_cntl)
412 cfg->emmc_rx_strobe_cntl = apl->emmc_rx_strobe_cntl;
413 if (apl->emmc_rx_cmd_data_cntl2)
414 cfg->emmc_rx_cmd_data_cntl2 = apl->emmc_rx_cmd_data_cntl2;
415 if (apl->emmc_host_max_speed)
416 cfg->e_mmc_host_max_speed = apl->emmc_host_max_speed;
418 cfg->lpss_s0ix_enable = apl->lpss_s0ix_enable;
420 cfg->skip_mp_init = true;
422 /* Disable setting of EISS bit in FSP */
425 /* Disable FSP from locking access to the RTC NVRAM */
428 /* Enable Audio clk gate and power gate */
429 cfg->hd_audio_clk_gate = apl->hdaudio_clk_gate_enable;
430 cfg->hd_audio_pwr_gate = apl->hdaudio_pwr_gate_enable;
431 /* Bios config lockdown Audio clk and power gate */
432 cfg->bios_cfg_lock_down = apl->hdaudio_bios_config_lockdown;
433 apl_fsp_silicon_init_params_cb(apl, cfg);
436 cfg->vtd_enable = apl->enable_vtd;
441 static void p2sb_set_hide_bit(pci_dev_t dev, int hide)
443 pci_x86_clrset_config(dev, PCH_P2SB_E0 + 1, HIDE_BIT,
444 hide ? HIDE_BIT : 0, PCI_SIZE_8);
447 /* Configure package power limits */
448 static int set_power_limits(struct udevice *dev)
450 msr_t rapl_msr_reg, limit;
452 u32 tdp, min_power, max_power;
458 rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU_UNIT);
459 power_unit = 1 << (rapl_msr_reg.lo & 0xf);
461 /* Get power defaults for this SKU */
462 rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU);
463 tdp = rapl_msr_reg.lo & PKG_POWER_LIMIT_MASK;
464 pl2_val = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK;
465 min_power = (rapl_msr_reg.lo >> 16) & PKG_POWER_LIMIT_MASK;
466 max_power = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK;
468 if (min_power > 0 && tdp < min_power)
471 if (max_power > 0 && tdp > max_power)
474 ret = dev_read_u32_array(dev, "tdp-pl-override-mw", override_tdp,
475 ARRAY_SIZE(override_tdp));
477 return log_msg_ret("tdp-pl-override-mw", ret);
479 /* Set PL1 override value */
481 tdp = override_tdp[0] * power_unit / 1000;
483 /* Set PL2 override value */
485 pl2_val = override_tdp[1] * power_unit / 1000;
487 /* Set long term power limit to TDP */
488 limit.lo = tdp & PKG_POWER_LIMIT_MASK;
489 /* Set PL1 Pkg Power clamp bit */
490 limit.lo |= PKG_POWER_LIMIT_CLAMP;
492 limit.lo |= PKG_POWER_LIMIT_EN;
493 limit.lo |= (MB_POWER_LIMIT1_TIME_DEFAULT &
494 PKG_POWER_LIMIT_TIME_MASK) << PKG_POWER_LIMIT_TIME_SHIFT;
496 /* Set short term power limit PL2 */
497 limit.hi = pl2_val & PKG_POWER_LIMIT_MASK;
498 limit.hi |= PKG_POWER_LIMIT_EN;
500 /* Program package power limits in RAPL MSR */
501 msr_write(MSR_PKG_POWER_LIMIT, limit);
502 log_info("RAPL PL1 %d.%dW\n", tdp / power_unit,
503 100 * (tdp % power_unit) / power_unit);
504 log_info("RAPL PL2 %d.%dW\n", pl2_val / power_unit,
505 100 * (pl2_val % power_unit) / power_unit);
508 * Sett RAPL MMIO register for Power limits. RAPL driver is using MSR
509 * instead of MMIO, so disable LIMIT_EN bit for MMIO
511 writel(limit.lo & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL));
512 writel(limit.hi & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL + 4));
517 int p2sb_unhide(void)
519 pci_dev_t dev = PCI_BDF(0, 0xd, 0);
522 p2sb_set_hide_bit(dev, 0);
524 pci_x86_read_config(dev, PCI_VENDOR_ID, &val, PCI_SIZE_16);
526 if (val != PCI_VENDOR_ID_INTEL)
527 return log_msg_ret("p2sb unhide", -EIO);
532 /* Overwrites the SCI IRQ if another IRQ number is given by device tree */
533 static void set_sci_irq(void)
535 /* Skip this for now */
538 int arch_fsps_preinit(void)
540 struct udevice *itss;
543 ret = irq_first_device_type(X86_IRQT_ITSS, &itss);
545 return log_msg_ret("no itss", ret);
547 * Snapshot the current GPIO IRQ polarities. FSP is setting a default
548 * policy that doesn't honour boards' requirements
550 irq_snapshot_polarities(itss);
553 * Clear the GPI interrupt status and enable registers. These
554 * registers do not get reset to default state when booting from S5.
556 ret = pinctrl_gpi_clear_int_cfg();
558 return log_msg_ret("gpi_clear", ret);
563 int arch_fsp_init_r(void)
565 #ifdef CONFIG_HAVE_ACPI_RESUME
566 bool s3wake = gd->arch.prev_sleep_state == ACPI_S3;
570 struct udevice *dev, *itss;
576 * This must be called before any devices are probed. Put any probing
577 * into arch_fsps_preinit() above.
579 * We don't use CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH here since it will
580 * force PCI to be probed.
582 ret = fsp_silicon_init(s3wake, false);
586 ret = irq_first_device_type(X86_IRQT_ITSS, &itss);
588 return log_msg_ret("no itss", ret);
589 /* Restore GPIO IRQ polarities back to previous settings */
590 irq_restore_polarities(itss);
595 return log_msg_ret("unhide p2sb", ret);
597 /* Set RAPL MSR for Package power limits*/
598 ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &dev);
600 return log_msg_ret("Cannot get northbridge", ret);
601 set_power_limits(dev);
604 * FSP-S routes SCI to IRQ 9. With the help of this function you can
605 * select another IRQ for SCI.