1 // SPDX-License-Identifier: GPL-2.0+
3 * K3: Architecture initialization
5 * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
6 * Lokesh Vutla <lokeshvutla@ti.com>
12 #include <asm/arch/hardware.h>
14 #ifdef CONFIG_SPL_BUILD
15 static void mmr_unlock(u32 base, u32 partition)
17 /* Translate the base address */
18 phys_addr_t part_base = base + partition * CTRL_MMR0_PARTITION_SIZE;
20 /* Unlock the requested partition if locked using two-step sequence */
21 writel(CTRLMMR_LOCK_KICK0_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK0);
22 writel(CTRLMMR_LOCK_KICK1_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK1);
25 static void ctrl_mmr_unlock(void)
27 /* Unlock all WKUP_CTRL_MMR0 module registers */
28 mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
29 mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
30 mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
31 mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
32 mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
33 mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
35 /* Unlock all MCU_CTRL_MMR0 module registers */
36 mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
37 mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
38 mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
39 mmr_unlock(MCU_CTRL_MMR0_BASE, 6);
41 /* Unlock all CTRL_MMR0 module registers */
42 mmr_unlock(CTRL_MMR0_BASE, 0);
43 mmr_unlock(CTRL_MMR0_BASE, 1);
44 mmr_unlock(CTRL_MMR0_BASE, 2);
45 mmr_unlock(CTRL_MMR0_BASE, 3);
46 mmr_unlock(CTRL_MMR0_BASE, 6);
47 mmr_unlock(CTRL_MMR0_BASE, 7);
50 static void store_boot_index_from_rom(void)
52 u32 *boot_index = (u32 *)K3_BOOT_PARAM_TABLE_INDEX_VAL;
54 *boot_index = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
57 void board_init_f(ulong dummy)
60 * Cannot delay this further as there is a chance that
61 * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
63 store_boot_index_from_rom();
65 /* Make all control module registers accessible */
68 /* Init DM early in-order to invoke system controller */
71 /* Prepare console output */
72 preloader_console_init();
75 static u32 __get_backup_bootmedia(u32 devstat)
77 u32 bkup_boot = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
78 CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
81 case BACKUP_BOOT_DEVICE_USB:
82 return BOOT_DEVICE_USB;
83 case BACKUP_BOOT_DEVICE_UART:
84 return BOOT_DEVICE_UART;
85 case BACKUP_BOOT_DEVICE_ETHERNET:
86 return BOOT_DEVICE_ETHERNET;
87 case BACKUP_BOOT_DEVICE_MMC2:
89 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
90 CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
92 return BOOT_DEVICE_MMC1;
93 return BOOT_DEVICE_MMC2;
95 case BACKUP_BOOT_DEVICE_SPI:
96 return BOOT_DEVICE_SPI;
97 case BACKUP_BOOT_DEVICE_HYPERFLASH:
98 return BOOT_DEVICE_HYPERFLASH;
99 case BACKUP_BOOT_DEVICE_I2C:
100 return BOOT_DEVICE_I2C;
103 return BOOT_DEVICE_RAM;
106 static u32 __get_primary_bootmedia(u32 devstat)
108 u32 bootmode = (devstat & CTRLMMR_MAIN_DEVSTAT_BOOTMODE_MASK) >>
109 CTRLMMR_MAIN_DEVSTAT_BOOTMODE_SHIFT;
111 if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
112 bootmode = BOOT_DEVICE_SPI;
114 if (bootmode == BOOT_DEVICE_MMC2) {
115 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_MMC_PORT_MASK) >>
116 CTRLMMR_MAIN_DEVSTAT_MMC_PORT_SHIFT;
118 bootmode = BOOT_DEVICE_MMC1;
119 } else if (bootmode == BOOT_DEVICE_MMC1) {
120 u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_MASK) >>
121 CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT;
123 bootmode = BOOT_DEVICE_MMC2;
129 u32 spl_boot_device(void)
131 u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
132 u32 bootindex = readl(K3_BOOT_PARAM_TABLE_INDEX_VAL);
134 if (bootindex == K3_PRIMARY_BOOTMODE)
135 return __get_primary_bootmedia(devstat);
137 return __get_backup_bootmedia(devstat);
141 #ifndef CONFIG_SYSRESET
142 void reset_cpu(ulong ignored)