diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2014-06-02 16:13:20 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-06-06 10:07:25 +0200 |
| commit | 887717dbb91bccfe82aa397b355aa5be4b1cb16a (patch) | |
| tree | a47d4171bfa57cd9449a4d21959073879815938d /arch/arm | |
| parent | 88c307d19d716b7ab0a35fd454766069ff788e5e (diff) | |
mx6: add boot device support for SPL
Add a common spl.c file to support boot device functions needed for SPL
such as detecting the boot device.
Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/imx-common/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/imx-common/spl.c | 81 |
2 files changed, 82 insertions, 0 deletions
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile index 0e713952dc..d4799e7d7b 100644 --- a/arch/arm/imx-common/Makefile +++ b/arch/arm/imx-common/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o endif ifeq ($(SOC),$(filter $(SOC),mx6 mxs)) obj-y += misc.o +obj-$(CONFIG_SPL_BUILD) += spl.o endif ifeq ($(SOC),$(filter $(SOC),mx6)) obj-$(CONFIG_CMD_SATA) += sata.o diff --git a/arch/arm/imx-common/spl.c b/arch/arm/imx-common/spl.c new file mode 100644 index 0000000000..9a02a644bc --- /dev/null +++ b/arch/arm/imx-common/spl.c @@ -0,0 +1,81 @@ +/* + * 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_FAT; +#else + return MMCSD_MODE_RAW; +#endif + break; + default: + puts("spl: ERROR: unsupported device\n"); + hang(); + } +} +#endif |