projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 887717db TH |
1 | /* |
| 2 | * Copyright (C) 2014 Gateworks Corporation | |
| 3 | * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. | |
| 4 | * | |
| 5 | * Author: Tim Harvey <tharvey@gateworks.com> | |
| 6 | * | |
| 7 | * SPDX-License-Identifier: GPL-2.0+ | |
| 8 | */ | |
| 9 | ||
| 10 | #include <common.h> | |
| 11 | #include <asm/io.h> | |
| 12 | #include <asm/arch/imx-regs.h> | |
| 13 | #include <asm/spl.h> | |
| 14 | #include <spl.h> | |
| 15 | ||
| 16 | #if defined(CONFIG_MX6) | |
| f2863ff3 | 17 | /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */ |
| 887717db TH |
18 | u32 spl_boot_device(void) |
| 19 | { | |
| 20 | struct src *psrc = (struct src *)SRC_BASE_ADDR; | |
| f2863ff3 NK |
21 | unsigned int gpr10_boot = readl(&psrc->gpr10) & (1 << 28); |
| 22 | unsigned reg = gpr10_boot ? readl(&psrc->gpr9) : readl(&psrc->sbmr1); | |
| 40f4839c | 23 | unsigned int bmode = readl(&psrc->sbmr2); |
| 887717db | 24 | |
| 40f4839c SB |
25 | /* |
| 26 | * Check for BMODE if serial downloader is enabled | |
| 27 | * BOOT_MODE - see IMX6DQRM Table 8-1 | |
| 28 | */ | |
| 29 | if ((((bmode >> 24) & 0x03) == 0x01) || /* Serial Downloader */ | |
| 30 | (gpr10_boot && (reg == 1))) | |
| 31 | return BOOT_DEVICE_UART; | |
| 887717db TH |
32 | /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ |
| 33 | switch ((reg & 0x000000FF) >> 4) { | |
| 34 | /* EIM: See 8.5.1, Table 8-9 */ | |
| 35 | case 0x0: | |
| 36 | /* BOOT_CFG1[3]: NOR/OneNAND Selection */ | |
| 37 | if ((reg & 0x00000008) >> 3) | |
| 38 | return BOOT_DEVICE_ONENAND; | |
| 39 | else | |
| 40 | return BOOT_DEVICE_NOR; | |
| 41 | break; | |
| 42 | /* SATA: See 8.5.4, Table 8-20 */ | |
| 43 | case 0x2: | |
| 44 | return BOOT_DEVICE_SATA; | |
| 45 | /* Serial ROM: See 8.5.5.1, Table 8-22 */ | |
| 46 | case 0x3: | |
| 47 | /* BOOT_CFG4[2:0] */ | |
| 48 | switch ((reg & 0x07000000) >> 24) { | |
| 49 | case 0x0 ... 0x4: | |
| 50 | return BOOT_DEVICE_SPI; | |
| 51 | case 0x5 ... 0x7: | |
| 52 | return BOOT_DEVICE_I2C; | |
| 53 | } | |
| 54 | break; | |
| 55 | /* SD/eSD: 8.5.3, Table 8-15 */ | |
| 56 | case 0x4: | |
| 57 | case 0x5: | |
| 51efabac | 58 | return BOOT_DEVICE_MMC1; |
| 887717db TH |
59 | /* MMC/eMMC: 8.5.3 */ |
| 60 | case 0x6: | |
| 61 | case 0x7: | |
| 62 | return BOOT_DEVICE_MMC1; | |
| 63 | /* NAND Flash: 8.5.2 */ | |
| 64 | case 0x8 ... 0xf: | |
| 65 | return BOOT_DEVICE_NAND; | |
| 66 | } | |
| 67 | return BOOT_DEVICE_NONE; | |
| 68 | } | |
| 69 | #endif | |
| 70 | ||
| 71 | #if defined(CONFIG_SPL_MMC_SUPPORT) | |
| 72 | /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ | |
| 2b1cdafa | 73 | u32 spl_boot_mode(const u32 boot_device) |
| 887717db TH |
74 | { |
| 75 | switch (spl_boot_device()) { | |
| 76 | /* for MMC return either RAW or FAT mode */ | |
| 77 | case BOOT_DEVICE_MMC1: | |
| 78 | case BOOT_DEVICE_MMC2: | |
| 248802d4 | 79 | #if defined(CONFIG_SPL_FAT_SUPPORT) |
| 205b4f33 | 80 | return MMCSD_MODE_FS; |
| 248802d4 PA |
81 | #elif defined(CONFIG_SUPPORT_EMMC_BOOT) |
| 82 | return MMCSD_MODE_EMMCBOOT; | |
| 887717db TH |
83 | #else |
| 84 | return MMCSD_MODE_RAW; | |
| 85 | #endif | |
| 86 | break; | |
| 87 | default: | |
| 88 | puts("spl: ERROR: unsupported device\n"); | |
| 89 | hang(); | |
| 90 | } | |
| 91 | } | |
| 92 | #endif |