[PATCH v5 3/6] rockchip: px30: list possible SPL boot devices

Quentin Schulz foss+uboot at 0leil.net
Tue Jan 3 14:26:40 CET 2023

From: Quentin Schulz <quentin.schulz at theobroma-systems.com>

BOOTROM sets a bit in a CPU register so that the software can know from
where the first stage bootloader was booted. One use case for this is to
specify the default loading medium for U-Boot proper to match the one
used by the BOOTROM to load the SPL (same-as-spl in

Let's create the mapping between BOOTROM value and Device Tree node
names for MMC devices.

Cc: Quentin Schulz <foss+uboot at 0leil.net>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>
 arch/arm/mach-rockchip/px30/px30.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-rockchip/px30/px30.c b/arch/arm/mach-rockchip/px30/px30.c
index 35a36700df..a90f18720a 100644
--- a/arch/arm/mach-rockchip/px30/px30.c
+++ b/arch/arm/mach-rockchip/px30/px30.c
@@ -8,6 +8,7 @@
 #include <init.h>
 #include <asm/armv8/mmu.h>
 #include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/grf_px30.h>
 #include <asm/arch-rockchip/hardware.h>
 #include <asm/arch-rockchip/uart.h>
@@ -15,6 +16,11 @@
 #include <asm/arch-rockchip/cru_px30.h>
 #include <dt-bindings/clock/px30-cru.h>
+const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+	[BROM_BOOTSOURCE_EMMC] = "/mmc at ff390000",
+	[BROM_BOOTSOURCE_SD] = "/mmc at ff370000",
 static struct mm_region px30_mem_map[] = {
 		.virt = 0x0UL,

b4 0.10.1

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