projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c5e8885a BS |
1 | /* |
| 2 | * Copyright (C) 2013 Atmel Corporation | |
| 3 | * Bo Shen <voice.shen@atmel.com> | |
| 4 | * | |
| 5 | * SPDX-License-Identifier: GPL-2.0+ | |
| 6 | */ | |
| 7 | ||
| 8 | #include <common.h> | |
| 9 | #include <asm/io.h> | |
| 10 | #include <asm/arch/at91_common.h> | |
| c5e8885a BS |
11 | #include <asm/arch/at91_wdt.h> |
| 12 | #include <asm/arch/clk.h> | |
| 13 | #include <spl.h> | |
| 14 | ||
| 49b461f3 HS |
15 | #if defined(CONFIG_AT91SAM9_WATCHDOG) |
| 16 | void at91_disable_wdt(void) { } | |
| 17 | #else | |
| 5abc00d0 | 18 | void at91_disable_wdt(void) |
| c5e8885a BS |
19 | { |
| 20 | struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT; | |
| 21 | ||
| 22 | writel(AT91_WDT_MR_WDDIS, &wdt->mr); | |
| 23 | } | |
| 49b461f3 | 24 | #endif |
| c5e8885a | 25 | |
| 1c24f13f MV |
26 | #if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \ |
| 27 | defined(CONFIG_SAMA5D4) | |
| 28 | #include <asm/arch/sama5_boot.h> | |
| bb0c63a5 MV |
29 | struct { |
| 30 | u32 r4; | |
| 31 | } bootrom_stash __attribute__((section(".data"))); | |
| 32 | ||
| 33 | u32 spl_boot_device(void) | |
| 34 | { | |
| 1c24f13f MV |
35 | u32 dev = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_FROM_OFF) & |
| 36 | ATMEL_SAMA5_BOOT_FROM_MASK; | |
| 37 | u32 off = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_DEV_ID_OFF) & | |
| 38 | ATMEL_SAMA5_BOOT_DEV_ID_MASK; | |
| bb0c63a5 MV |
39 | |
| 40 | #if defined(CONFIG_SYS_USE_MMC) | |
| 1c24f13f | 41 | if (dev == ATMEL_SAMA5_BOOT_FROM_MCI) { |
| bb0c63a5 MV |
42 | if (off == 0) |
| 43 | return BOOT_DEVICE_MMC1; | |
| 44 | if (off == 1) | |
| 45 | return BOOT_DEVICE_MMC2; | |
| 46 | printf("ERROR: MMC controller %i not present!\n", dev); | |
| 47 | hang(); | |
| 48 | } | |
| 49 | #endif | |
| 50 | ||
| 51 | #if defined(CONFIG_SYS_USE_SERIALFLASH) || defined(CONFIG_SYS_USE_SPIFLASH) | |
| 1c24f13f | 52 | if (dev == ATMEL_SAMA5_BOOT_FROM_SPI) |
| bb0c63a5 MV |
53 | return BOOT_DEVICE_SPI; |
| 54 | #endif | |
| 55 | ||
| 1c24f13f MV |
56 | if (dev == ATMEL_SAMA5_BOOT_FROM_SAMBA) |
| 57 | return BOOT_DEVICE_USB; | |
| 58 | ||
| bb0c63a5 MV |
59 | printf("ERROR: SMC/TWI/QSPI boot device not supported!\n" |
| 60 | " Boot device %i, controller number %i\n", dev, off); | |
| 61 | ||
| 62 | return BOOT_DEVICE_NONE; | |
| 63 | } | |
| 64 | #else | |
| c5e8885a BS |
65 | u32 spl_boot_device(void) |
| 66 | { | |
| 67 | #ifdef CONFIG_SYS_USE_MMC | |
| 68 | return BOOT_DEVICE_MMC1; | |
| 27019e4a BS |
69 | #elif CONFIG_SYS_USE_NANDFLASH |
| 70 | return BOOT_DEVICE_NAND; | |
| d85e8914 | 71 | #elif CONFIG_SYS_USE_SERIALFLASH || CONFIG_SYS_USE_SPIFLASH |
| 8a45b0ba | 72 | return BOOT_DEVICE_SPI; |
| c5e8885a BS |
73 | #endif |
| 74 | return BOOT_DEVICE_NONE; | |
| 75 | } | |
| bb0c63a5 | 76 | #endif |
| c5e8885a | 77 | |
| 2b1cdafa | 78 | u32 spl_boot_mode(const u32 boot_device) |
| c5e8885a BS |
79 | { |
| 80 | switch (spl_boot_device()) { | |
| 81 | #ifdef CONFIG_SYS_USE_MMC | |
| 82 | case BOOT_DEVICE_MMC1: | |
| bb0c63a5 | 83 | case BOOT_DEVICE_MMC2: |
| 205b4f33 | 84 | return MMCSD_MODE_FS; |
| c5e8885a BS |
85 | break; |
| 86 | #endif | |
| 87 | case BOOT_DEVICE_NONE: | |
| 88 | default: | |
| 89 | hang(); | |
| 90 | } | |
| 91 | } |