2 * Copyright (C) 2014 Gateworks Corporation
3 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
5 * Author: Tim Harvey <tharvey@gateworks.com>
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/arch/imx-regs.h>
16 #if defined(CONFIG_MX6)
17 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
18 u32 spl_boot_device(void)
20 struct src *psrc = (struct src *)SRC_BASE_ADDR;
21 unsigned int gpr10_boot = readl(&psrc->gpr10) & (1 << 28);
22 unsigned reg = gpr10_boot ? readl(&psrc->gpr9) : readl(&psrc->sbmr1);
24 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
25 switch ((reg & 0x000000FF) >> 4) {
26 /* EIM: See 8.5.1, Table 8-9 */
28 /* BOOT_CFG1[3]: NOR/OneNAND Selection */
29 if ((reg & 0x00000008) >> 3)
30 return BOOT_DEVICE_ONENAND;
32 return BOOT_DEVICE_NOR;
34 /* SATA: See 8.5.4, Table 8-20 */
36 return BOOT_DEVICE_SATA;
37 /* Serial ROM: See 8.5.5.1, Table 8-22 */
40 switch ((reg & 0x07000000) >> 24) {
42 return BOOT_DEVICE_SPI;
44 return BOOT_DEVICE_I2C;
47 /* SD/eSD: 8.5.3, Table 8-15 */
50 return BOOT_DEVICE_MMC1;
54 return BOOT_DEVICE_MMC1;
55 /* NAND Flash: 8.5.2 */
57 return BOOT_DEVICE_NAND;
59 return BOOT_DEVICE_NONE;
63 #if defined(CONFIG_SPL_MMC_SUPPORT)
64 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
65 u32 spl_boot_mode(void)
67 switch (spl_boot_device()) {
68 /* for MMC return either RAW or FAT mode */
69 case BOOT_DEVICE_MMC1:
70 case BOOT_DEVICE_MMC2:
71 #if defined(CONFIG_SPL_FAT_SUPPORT)
73 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
74 return MMCSD_MODE_EMMCBOOT;
76 return MMCSD_MODE_RAW;
80 puts("spl: ERROR: unsupported device\n");