From: Benjamin Szőke
Take over codes from Techenxion to support mmc autodetect boot for pico-imx7d.
Signed-off-by: Benjamin Szőke
---
board/technexion/pico-imx7d/pico-imx7d.c | 57 +++
board/technexion/pico-imx7d/spl.c| 91 ++--
include/configs/pico-imx7d.h | 4 +-
3 files changed, 144 insertions(+), 8 deletions(-)
diff --git a/board/technexion/pico-imx7d/pico-imx7d.c
b/board/technexion/pico-imx7d/pico-imx7d.c
index 6e98b85b28..7e0fa002d3 100644
--- a/board/technexion/pico-imx7d/pico-imx7d.c
+++ b/board/technexion/pico-imx7d/pico-imx7d.c
@@ -13,6 +13,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -129,6 +130,50 @@ int board_phy_config(struct phy_device *phydev)
}
#endif
+#if CONFIG_IS_ENABLED(FSL_ESDHC_IMX)
+int check_mmc_autodetect(void)
+{
+ char *autodetect_str = env_get("mmcautodetect");
+
+ if ((autodetect_str != NULL) &&
+ (strcmp(autodetect_str, "yes") == 0)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+void board_late_mmc_init(void)
+{
+ int dev_no = 0;
+ char cmd[32];
+ char mmcblk[32];
+
+ if (!check_mmc_autodetect())
+ return;
+
+ switch (get_boot_device()) {
+ case SD3_BOOT:
+ case MMC3_BOOT:
+ env_set("bootdev", "MMC3");
+ dev_no = 2;
+ break;
+ case SD1_BOOT:
+ env_set("bootdev", "SD1");
+ dev_no = 0;
+ break;
+ default:
+ printf("Wrong boot device!");
+ }
+
+ /* Set mmcdev env */
+ env_set_ulong("mmcdev", dev_no);
+
+ sprintf(cmd, "mmc dev %d", dev_no);
+ run_command(cmd, 0);
+}
+#endif
+
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
@@ -176,6 +221,12 @@ int board_late_init(void)
set_wdog_reset(wdog);
+#if CONFIG_IS_ENABLED(FSL_ESDHC_IMX)
+#if defined(CONFIG_ENV_IS_IN_MMC) || defined(CONFIG_ENV_IS_NOWHERE)
+ board_late_mmc_init();
+#endif /* CONFIG_ENV_IS_IN_MMC or CONFIG_ENV_IS_NOWHERE */
+#endif
+
/*
* Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
* since we use PMIC_PWRON to reset the board.
@@ -210,3 +261,9 @@ int board_ehci_hcd_init(int port)
}
return 0;
}
+
+/* This should be defined for each board */
+__weak int mmc_map_to_kernel_blk(int dev_no)
+{
+return dev_no;
+}
diff --git a/board/technexion/pico-imx7d/spl.c
b/board/technexion/pico-imx7d/spl.c
index c6b21aaa42..f4711483df 100644
--- a/board/technexion/pico-imx7d/spl.c
+++ b/board/technexion/pico-imx7d/spl.c
@@ -15,6 +15,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -159,7 +160,20 @@ void reset_cpu(void)
#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
-static iomux_v3_cfg_t const usdhc3_pads[] = {
+#define USDHC1_CD_GPIO IMX_GPIO_NR(5, 0)
+/* EMMC/SD */
+static iomux_v3_cfg_t const usdhc1_pads[] = {
+ MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX7D_PAD_SD1_CD_B__GPIO5_IO0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+#define USDHC3_CD_GPIO IMX_GPIO_NR(1, 14)
+static iomux_v3_cfg_t const usdhc3_emmc_pads[] = {
MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@@ -173,20 +187,83 @@ static iomux_v3_cfg_t const usdhc3_pads[] = {
MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
-static struct fsl_esdhc_cfg usdhc_cfg[1] = {
+static struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR},
+ {USDHC1_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
- /* Assume uSDHC3 emmc is always present */
- return 1;
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret = 0;
+
+ switch (cfg->esdhc_base) {
+ case USDHC1_BASE_ADDR:
+ ret = !gpio_get_value(USDHC1_CD_GPIO); /* Assume uSDHC1 sd is
always present */
+ break;
+ case USDHC3_BASE_ADDR:
+ ret = !gpio_get_value(USDHC3_CD_GPIO); /* Assume uSDHC3 emmc is
always present */
+ break;
+ }
+
+ return ret;
}
int board_mmc_init(struct bd_info *bis)
{
-
