diff options
| author | Walter Lozano | 2020-05-19 15:24:22 -0300 |
|---|---|---|
| committer | Stefano Babic | 2020-06-23 00:08:53 +0200 |
| commit | 6c3fbf3e456c49c2f43c0c286106a0d4b099b67b (patch) | |
| tree | 402d4796890a3f3b1f9657b6644eae5e19b5f77e /board | |
| parent | 24899e03a56f56e4c78a03247818196ce0cafbb0 (diff) | |
mx6cuboxi: customize board_boot_order to access eMMC
In SPL legacy code only one MMC device is created, based on BOOT_CFG
register, which can be either SD or eMMC. In this context
board_boot_order return always MMC1 when configure to boot from
SD/eMMC. After switching to DM both SD and eMMC devices are created
based on the information available on DT, but as board_boot_order
only returns MMC1 is not possible to boot from eMMC.
This patch customizes board_boot_order taking into account BOOT_CFG
register to point to correct MMC1 / MMC2 device. Additionally, handle
IO mux for the desired boot device.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/solidrun/mx6cuboxi/mx6cuboxi.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c index 59e8b1dca1d..c531fbec71d 100644 --- a/board/solidrun/mx6cuboxi/mx6cuboxi.c +++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c @@ -529,6 +529,54 @@ int board_fit_config_name_match(const char *name) return strcmp(name, tmp_name); } +void board_boot_order(u32 *spl_boot_list) +{ + struct src *psrc = (struct src *)SRC_BASE_ADDR; + unsigned int reg = readl(&psrc->sbmr1) >> 11; + u32 boot_mode = imx6_src_get_boot_mode() & IMX6_BMODE_MASK; + unsigned int bmode = readl(&src_base->sbmr2); + + /* If bmode is serial or USB phy is active, return serial */ + if (((bmode >> 24) & 0x03) == 0x01 || is_usbotg_phy_active()) { + spl_boot_list[0] = BOOT_DEVICE_BOARD; + return; + } + + switch (boot_mode >> IMX6_BMODE_SHIFT) { + case IMX6_BMODE_SD: + case IMX6_BMODE_ESD: + case IMX6_BMODE_MMC: + case IMX6_BMODE_EMMC: + /* + * Upon reading BOOT_CFG register the following map is done: + * Bit 11 and 12 of BOOT_CFG register can determine the current + * mmc port + * 0x1 SD2 + * 0x2 SD3 + */ + + reg &= 0x3; /* Only care about bottom 2 bits */ + switch (reg) { + case 1: + SETUP_IOMUX_PADS(usdhc2_pads); + spl_boot_list[0] = BOOT_DEVICE_MMC1; + break; + case 2: + SETUP_IOMUX_PADS(usdhc3_pads); + spl_boot_list[0] = BOOT_DEVICE_MMC2; + break; + } + break; + default: + /* By default use USB downloader */ + spl_boot_list[0] = BOOT_DEVICE_BOARD; + break; + } + + /* As a last resort, use serial downloader */ + spl_boot_list[1] = BOOT_DEVICE_BOARD; +} + #ifdef CONFIG_SPL_BUILD #include <asm/arch/mx6-ddr.h> static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = { |