Since the SD3.0 kernel driver needs M4 image support, this causes
problem for usb boot booting into kernel. To decouple the relationship,
we modify the FDT file in u-boot to disable SD3.0.
So the kernel won't depend on M4 image.
Signed-off-by: Peng Fan <peng....@nxp.com>
---
board/freescale/mx7ulp_evk/mx7ulp_evk.c | 47 +++++++++++++++++++++++++++++++++
configs/mx7ulp_evk_defconfig | 1 +
2 files changed, 48 insertions(+)
diff --git a/board/freescale/mx7ulp_evk/mx7ulp_evk.c
b/board/freescale/mx7ulp_evk/mx7ulp_evk.c
index 3a12fe1551..7527263577 100644
--- a/board/freescale/mx7ulp_evk/mx7ulp_evk.c
+++ b/board/freescale/mx7ulp_evk/mx7ulp_evk.c
@@ -4,10 +4,12 @@
*/
#include <common.h>
+#include <fdt_support.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mx7ulp-pins.h>
#include <asm/arch/iomux.h>
+#include <asm/mach-imx/boot_mode.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -45,3 +47,48 @@ int board_init(void)
return 0;
}
+
+#if IS_ENABLED(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+ const char *path;
+ int rc, nodeoff;
+
+ if (get_boot_device() == USB_BOOT) {
+ path = fdt_get_alias(blob, "mmc0");
+ if (!path) {
+ puts("Not found mmc0\n");
+ return 0;
+ }
+
+ nodeoff = fdt_path_offset(blob, path);
+ if (nodeoff < 0)
+ return 0;
+
+ printf("Found usdhc0 node\n");
+ if (fdt_get_property(blob, nodeoff, "vqmmc-supply",
+ NULL) != NULL) {
+ rc = fdt_delprop(blob, nodeoff, "vqmmc-supply");
+ if (!rc) {
+ puts("Removed vqmmc-supply property\n");
+add:
+ rc = fdt_setprop(blob, nodeoff,
+ "no-1-8-v", NULL, 0);
+ if (rc == -FDT_ERR_NOSPACE) {
+ rc = fdt_increase_size(blob, 32);
+ if (!rc)
+ goto add;
+ } else if (rc) {
+ printf("Failed to add no-1-8-v
property, %d\n", rc);
+ } else {
+ puts("Added no-1-8-v property\n");
+ }
+ } else {
+ printf("Failed to remove vqmmc-supply property,
%d\n", rc);
+ }
+ }
+ }
+
+ return 0;
+}
+#endif
diff --git a/configs/mx7ulp_evk_defconfig b/configs/mx7ulp_evk_defconfig
index d125ccc1af..c7af66b2e9 100644
--- a/configs/mx7ulp_evk_defconfig
+++ b/configs/mx7ulp_evk_defconfig
@@ -3,6 +3,7 @@ CONFIG_ARCH_MX7ULP=y
CONFIG_SYS_TEXT_BASE=0x67800000
CONFIG_TARGET_MX7ULP_EVK=y
CONFIG_NR_DRAM_BANKS=1
+CONFIG_OF_BOARD_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx7ulp_evk/imximage.cfg"
CONFIG_BOUNCE_BUFFER=y
CONFIG_HUSH_PARSER=y
--
2.16.4
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