@@ -624,6 +624,54 @@ 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 = {
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> --- board/solidrun/mx6cuboxi/mx6cuboxi.c | 48 ++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+)