1 // SPDX-License-Identifier: GPL-2.0+
3 * AM6: SoC specific initialization
5 * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
6 * Lokesh Vutla <lokeshvutla@ti.com>
10 #include <fdt_support.h>
12 #include <asm/global_data.h>
15 #include <asm/arch/hardware.h>
16 #include <asm/arch/sysfw-loader.h>
17 #include <asm/arch/sys_proto.h>
20 #include <dm/uclass-internal.h>
21 #include <dm/pinctrl.h>
22 #include <linux/soc/ti/ti_sci_protocol.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 #ifdef CONFIG_SPL_BUILD
30 #ifdef CONFIG_K3_LOAD_SYSFW
31 #ifdef CONFIG_TI_SECURE_DEVICE
32 struct fwl_data main_cbass_fwls[] = {
33 { "MMCSD1_CFG", 2057, 1 },
34 { "MMCSD0_CFG", 2058, 1 },
35 { "USB3SS0_SLV0", 2176, 2 },
36 { "PCIE0_SLV", 2336, 8 },
37 { "PCIE1_SLV", 2337, 8 },
38 { "PCIE0_CFG", 2688, 1 },
39 { "PCIE1_CFG", 2689, 1 },
40 }, mcu_cbass_fwls[] = {
41 { "MCU_ARMSS0_CORE0_SLV", 1024, 1 },
42 { "MCU_ARMSS0_CORE1_SLV", 1028, 1 },
43 { "MCU_FSS0_S1", 1033, 8 },
44 { "MCU_FSS0_S0", 1036, 8 },
45 { "MCU_CPSW0", 1220, 1 },
50 static void ctrl_mmr_unlock(void)
52 /* Unlock all WKUP_CTRL_MMR0 module registers */
53 mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
54 mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
55 mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
56 mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
57 mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
58 mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
60 /* Unlock all MCU_CTRL_MMR0 module registers */
61 mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
62 mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
63 mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
64 mmr_unlock(MCU_CTRL_MMR0_BASE, 6);
66 /* Unlock all CTRL_MMR0 module registers */
67 mmr_unlock(CTRL_MMR0_BASE, 0);
68 mmr_unlock(CTRL_MMR0_BASE, 1);
69 mmr_unlock(CTRL_MMR0_BASE, 2);
70 mmr_unlock(CTRL_MMR0_BASE, 3);
71 mmr_unlock(CTRL_MMR0_BASE, 6);
72 mmr_unlock(CTRL_MMR0_BASE, 7);
76 * This uninitialized global variable would normal end up in the .bss section,
77 * but the .bss is cleared between writing and reading this variable, so move
78 * it to the .data section.
80 u32 bootindex __section(".data");
82 static void store_boot_index_from_rom(void)
84 bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
87 #if defined(CONFIG_K3_LOAD_SYSFW) && CONFIG_IS_ENABLED(DM_MMC)
88 void k3_mmc_stop_clock(void)
90 if (spl_boot_device() == BOOT_DEVICE_MMC1) {
91 struct mmc *mmc = find_mmc_device(0);
96 mmc->saved_clock = mmc->clock;
97 mmc_set_clock(mmc, 0, true);
101 void k3_mmc_restart_clock(void)
103 if (spl_boot_device() == BOOT_DEVICE_MMC1) {
104 struct mmc *mmc = find_mmc_device(0);
109 mmc_set_clock(mmc, mmc->saved_clock, false);
113 void k3_mmc_stop_clock(void) {}
114 void k3_mmc_restart_clock(void) {}
116 #if CONFIG_IS_ENABLED(DFU) || CONFIG_IS_ENABLED(USB_STORAGE)
117 #define CTRLMMR_SERDES0_CTRL 0x00104080
118 #define PCIE_LANE0 0x1
119 static int fixup_usb_boot(void)
123 switch (spl_boot_device()) {
124 case BOOT_DEVICE_USB:
126 * If bootmode is Host bootmode, fixup the dr_mode to host
127 * before the dwc3 bind takes place
129 ret = fdt_find_and_setprop((void *)gd->fdt_blob,
130 "/interconnect@100000/dwc3@4000000/usb@10000",
131 "dr_mode", "host", 11, 0);
133 printf("%s: fdt_find_and_setprop() failed:%d\n", __func__,
136 case BOOT_DEVICE_DFU:
138 * The serdes mux between PCIe and USB3 needs to be set to PCIe for
139 * accessing the interface at USB 2.0
141 writel(PCIE_LANE0, CTRLMMR_SERDES0_CTRL);
149 int fdtdec_board_setup(const void *fdt_blob)
151 return fixup_usb_boot();
155 static void setup_am654_navss_northbridge(void)
158 * NB0 is bridge to SRAM and NB1 is bridge to DDR.
159 * To ensure that SRAM transfers are not stalled due to
160 * delays during DDR refreshes, SRAM traffic should be higher
161 * priority (threadmap=2) than DDR traffic (threadmap=0).
163 writel(0x2, NAVSS0_NBSS_NB0_CFG_BASE + NAVSS_NBSS_THREADMAP);
164 writel(0x0, NAVSS0_NBSS_NB1_CFG_BASE + NAVSS_NBSS_THREADMAP);
167 void board_init_f(ulong dummy)
169 #if defined(CONFIG_K3_LOAD_SYSFW) || defined(CONFIG_K3_AM654_DDRSS)
176 * Cannot delay this further as there is a chance that
177 * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
179 store_boot_index_from_rom();
181 /* Make all control module registers accessible */
184 setup_am654_navss_northbridge();
186 #ifdef CONFIG_CPU_V7R
187 disable_linefill_optimization();
188 setup_k3_mpu_regions();
191 /* Init DM early in-order to invoke system controller */
194 #ifdef CONFIG_K3_EARLY_CONS
196 * Allow establishing an early console as required for example when
197 * doing a UART-based boot. Note that this console may not "survive"
198 * through a SYSFW PM-init step and will need a re-init in some way
199 * due to changing module clock frequencies.
201 early_console_init();
204 #ifdef CONFIG_K3_LOAD_SYSFW
206 * Initialize an early full malloc environment. Do so by allocating a
207 * new malloc area inside the currently active pre-relocation "first"
208 * malloc pool of which we use all that's left.
210 pool_size = CONFIG_VAL(SYS_MALLOC_F_LEN) - gd->malloc_ptr;
211 pool_addr = malloc(pool_size);
213 panic("ERROR: Can't allocate full malloc pool!\n");
215 mem_malloc_init((ulong)pool_addr, (ulong)pool_size);
216 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
217 debug("%s: initialized an early full malloc pool at 0x%08lx of 0x%lx bytes\n",
218 __func__, (unsigned long)pool_addr, (unsigned long)pool_size);
220 * Process pinctrl for the serial0 a.k.a. WKUP_UART0 module and continue
221 * regardless of the result of pinctrl. Do this without probing the
222 * device, but instead by searching the device that would request the
223 * given sequence number if probed. The UART will be used by the system
224 * firmware (SYSFW) image for various purposes and SYSFW depends on us
225 * to initialize its pin settings.
227 ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
229 pinctrl_select_state(dev, "default");
232 * Load, start up, and configure system controller firmware while
233 * also populating the SYSFW post-PM configuration callback hook.
235 k3_sysfw_loader(false, k3_mmc_stop_clock, k3_mmc_restart_clock);
237 /* Prepare console output */
238 preloader_console_init();
240 /* Disable ROM configured firewalls right after loading sysfw */
241 #ifdef CONFIG_TI_SECURE_DEVICE
242 remove_fwl_configs(main_cbass_fwls, ARRAY_SIZE(main_cbass_fwls));
243 remove_fwl_configs(mcu_cbass_fwls, ARRAY_SIZE(mcu_cbass_fwls));
246 /* Prepare console output */
247 preloader_console_init();
250 /* Output System Firmware version info */
251 k3_sysfw_print_ver();
253 /* Perform EEPROM-based board detection */
254 if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
257 #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
258 ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(k3_avs),
261 printf("AVS init failed: %d\n", ret);
264 #ifdef CONFIG_K3_AM654_DDRSS
265 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
267 panic("DRAM init failed: %d\n", ret);
272 u32 spl_mmc_boot_mode(const u32 boot_device)
274 #if defined(CONFIG_SUPPORT_EMMC_BOOT)
275 u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
277 u32 bootmode = (devstat & CTRLMMR_MAIN_DEVSTAT_BOOTMODE_MASK) >>
278 CTRLMMR_MAIN_DEVSTAT_BOOTMODE_SHIFT;
280 /* eMMC boot0 mode is only supported for primary boot */
281 if (bootindex == K3_PRIMARY_BOOTMODE &&
282 bootmode == BOOT_DEVICE_MMC1)
283 return MMCSD_MODE_EMMCBOOT;
286 /* Everything else use filesystem if available */
287 #if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
288 return MMCSD_MODE_FS;
290 return MMCSD_MODE_RAW;
294 static u32 __get_backup_bootmedia(u32 devstat)
296 u32 bkup_boot = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
297 CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
300 case BACKUP_BOOT_DEVICE_USB:
301 return BOOT_DEVICE_USB;
302 case BACKUP_BOOT_DEVICE_UART:
303 return BOOT_DEVICE_UART;
304 case BACKUP_BOOT_DEVICE_ETHERNET:
305 return BOOT_DEVICE_ETHERNET;
306 case BACKUP_BOOT_DEVICE_MMC2:
308 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
309 CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
311 return BOOT_DEVICE_MMC1;
312 return BOOT_DEVICE_MMC2;
314 case BACKUP_BOOT_DEVICE_SPI:
315 return BOOT_DEVICE_SPI;
316 case BACKUP_BOOT_DEVICE_HYPERFLASH:
317 return BOOT_DEVICE_HYPERFLASH;
318 case BACKUP_BOOT_DEVICE_I2C:
319 return BOOT_DEVICE_I2C;
322 return BOOT_DEVICE_RAM;
325 static u32 __get_primary_bootmedia(u32 devstat)
327 u32 bootmode = (devstat & CTRLMMR_MAIN_DEVSTAT_BOOTMODE_MASK) >>
328 CTRLMMR_MAIN_DEVSTAT_BOOTMODE_SHIFT;
330 if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
331 bootmode = BOOT_DEVICE_SPI;
333 if (bootmode == BOOT_DEVICE_MMC2) {
334 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_MMC_PORT_MASK) >>
335 CTRLMMR_MAIN_DEVSTAT_MMC_PORT_SHIFT;
337 bootmode = BOOT_DEVICE_MMC1;
338 } else if (bootmode == BOOT_DEVICE_MMC1) {
339 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_MASK) >>
340 CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT;
342 bootmode = BOOT_DEVICE_MMC2;
343 } else if (bootmode == BOOT_DEVICE_DFU) {
344 u32 mode = (devstat & CTRLMMR_MAIN_DEVSTAT_USB_MODE_MASK) >>
345 CTRLMMR_MAIN_DEVSTAT_USB_MODE_SHIFT;
347 bootmode = BOOT_DEVICE_USB;
353 u32 spl_boot_device(void)
355 u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
357 if (bootindex == K3_PRIMARY_BOOTMODE)
358 return __get_primary_bootmedia(devstat);
360 return __get_backup_bootmedia(devstat);
364 #ifdef CONFIG_SYS_K3_SPL_ATF
366 #define AM6_DEV_MCU_RTI0 134
367 #define AM6_DEV_MCU_RTI1 135
368 #define AM6_DEV_MCU_ARMSS0_CPU0 159
369 #define AM6_DEV_MCU_ARMSS0_CPU1 245
371 void release_resources_for_core_shutdown(void)
373 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
374 struct ti_sci_dev_ops *dev_ops = &ti_sci->ops.dev_ops;
375 struct ti_sci_proc_ops *proc_ops = &ti_sci->ops.proc_ops;
379 const u32 put_device_ids[] = {
384 /* Iterate through list of devices to put (shutdown) */
385 for (i = 0; i < ARRAY_SIZE(put_device_ids); i++) {
386 u32 id = put_device_ids[i];
388 ret = dev_ops->put_device(ti_sci, id);
390 panic("Failed to put device %u (%d)\n", id, ret);
393 const u32 put_core_ids[] = {
394 AM6_DEV_MCU_ARMSS0_CPU1,
395 AM6_DEV_MCU_ARMSS0_CPU0, /* Handle CPU0 after CPU1 */
398 /* Iterate through list of cores to put (shutdown) */
399 for (i = 0; i < ARRAY_SIZE(put_core_ids); i++) {
400 u32 id = put_core_ids[i];
403 * Queue up the core shutdown request. Note that this call
404 * needs to be followed up by an actual invocation of an WFE
405 * or WFI CPU instruction.
407 ret = proc_ops->proc_shutdown_no_wait(ti_sci, id);
409 panic("Failed sending core %u shutdown message (%d)\n",