arm: iMX8ULP: Add boot device relevant functions
Read from ROM API to get current boot device.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 8828a94..add4618 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -9,6 +9,7 @@
#include <asm/arch/sys_proto.h>
#include <asm/armv8/mmu.h>
#include <asm/mach-imx/boot_mode.h>
+#include <asm/global_data.h>
#include <efi_loader.h>
#include <spl.h>
#include <asm/arch/rdc.h>
@@ -27,6 +28,89 @@
struct rom_api *g_rom_api = (struct rom_api *)0x1980;
+enum boot_device get_boot_device(void)
+{
+ volatile gd_t *pgd = gd;
+ int ret;
+ u32 boot;
+ u16 boot_type;
+ u8 boot_instance;
+ enum boot_device boot_dev = SD1_BOOT;
+
+ ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
+ ((uintptr_t)&boot) ^ QUERY_BT_DEV);
+ set_gd(pgd);
+
+ if (ret != ROM_API_OKAY) {
+ puts("ROMAPI: failure at query_boot_info\n");
+ return -1;
+ }
+
+ boot_type = boot >> 16;
+ boot_instance = (boot >> 8) & 0xff;
+
+ switch (boot_type) {
+ case BT_DEV_TYPE_SD:
+ boot_dev = boot_instance + SD1_BOOT;
+ break;
+ case BT_DEV_TYPE_MMC:
+ boot_dev = boot_instance + MMC1_BOOT;
+ break;
+ case BT_DEV_TYPE_NAND:
+ boot_dev = NAND_BOOT;
+ break;
+ case BT_DEV_TYPE_FLEXSPINOR:
+ boot_dev = QSPI_BOOT;
+ break;
+ case BT_DEV_TYPE_USB:
+ boot_dev = USB_BOOT;
+ break;
+ default:
+ break;
+ }
+
+ return boot_dev;
+}
+
+bool is_usb_boot(void)
+{
+ return get_boot_device() == USB_BOOT;
+}
+
+#ifdef CONFIG_ENV_IS_IN_MMC
+__weak int board_mmc_get_env_dev(int devno)
+{
+ return devno;
+}
+
+int mmc_get_env_dev(void)
+{
+ volatile gd_t *pgd = gd;
+ int ret;
+ u32 boot;
+ u16 boot_type;
+ u8 boot_instance;
+
+ ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
+ ((uintptr_t)&boot) ^ QUERY_BT_DEV);
+ set_gd(pgd);
+
+ if (ret != ROM_API_OKAY) {
+ puts("ROMAPI: failure at query_boot_info\n");
+ return CONFIG_SYS_MMC_ENV_DEV;
+ }
+
+ boot_type = boot >> 16;
+ boot_instance = (boot >> 8) & 0xff;
+
+ /* If not boot from sd/mmc, use default value */
+ if (boot_type != BOOT_TYPE_SD && boot_type != BOOT_TYPE_MMC)
+ return env_get_ulong("mmcdev", 10, CONFIG_SYS_MMC_ENV_DEV);
+
+ return board_mmc_get_env_dev(boot_instance);
+}
+#endif
+
u32 get_cpu_rev(void)
{
return (MXC_CPU_IMX8ULP << 12) | CHIP_REV_1_0;