| /* |
| * Copyright (C) 2014 Gateworks Corporation |
| * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. |
| * |
| * Author: Tim Harvey <tharvey@gateworks.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <asm/io.h> |
| #include <asm/arch/imx-regs.h> |
| #include <asm/spl.h> |
| #include <spl.h> |
| |
| #if defined(CONFIG_MX6) |
| /* determine boot device from SRC_SBMR1 register (BOOT_CFG[4:1]) */ |
| u32 spl_boot_device(void) |
| { |
| struct src *psrc = (struct src *)SRC_BASE_ADDR; |
| unsigned reg = readl(&psrc->sbmr1); |
| |
| /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ |
| switch ((reg & 0x000000FF) >> 4) { |
| /* EIM: See 8.5.1, Table 8-9 */ |
| case 0x0: |
| /* BOOT_CFG1[3]: NOR/OneNAND Selection */ |
| if ((reg & 0x00000008) >> 3) |
| return BOOT_DEVICE_ONENAND; |
| else |
| return BOOT_DEVICE_NOR; |
| break; |
| /* SATA: See 8.5.4, Table 8-20 */ |
| case 0x2: |
| return BOOT_DEVICE_SATA; |
| /* Serial ROM: See 8.5.5.1, Table 8-22 */ |
| case 0x3: |
| /* BOOT_CFG4[2:0] */ |
| switch ((reg & 0x07000000) >> 24) { |
| case 0x0 ... 0x4: |
| return BOOT_DEVICE_SPI; |
| case 0x5 ... 0x7: |
| return BOOT_DEVICE_I2C; |
| } |
| break; |
| /* SD/eSD: 8.5.3, Table 8-15 */ |
| case 0x4: |
| case 0x5: |
| return BOOT_DEVICE_MMC1; |
| /* MMC/eMMC: 8.5.3 */ |
| case 0x6: |
| case 0x7: |
| return BOOT_DEVICE_MMC1; |
| /* NAND Flash: 8.5.2 */ |
| case 0x8 ... 0xf: |
| return BOOT_DEVICE_NAND; |
| } |
| return BOOT_DEVICE_NONE; |
| } |
| #endif |
| |
| #if defined(CONFIG_SPL_MMC_SUPPORT) |
| /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ |
| u32 spl_boot_mode(void) |
| { |
| switch (spl_boot_device()) { |
| /* for MMC return either RAW or FAT mode */ |
| case BOOT_DEVICE_MMC1: |
| case BOOT_DEVICE_MMC2: |
| #ifdef CONFIG_SPL_FAT_SUPPORT |
| return MMCSD_MODE_FS; |
| #else |
| return MMCSD_MODE_RAW; |
| #endif |
| break; |
| default: |
| puts("spl: ERROR: unsupported device\n"); |
| hang(); |
| } |
| } |
| #endif |