Implement checkboard() to print current SoC variant used by a board, e.g. one of:
SoC: RK3308 SoC: RK3308B SoC: RK3308B-S
when U-Boot proper is running.
U-Boot 2025.01-rc1 (Nov 02 2024 - 20:26:25 +0000)
Model: Radxa ROCK Pi S SoC: RK3308B DRAM: 512 MiB (effective 510 MiB)
Information about the SoC variant is read from GRF.
Signed-off-by: Jonas Karlman jonas@kwiboo.se --- v3: No change v2: New patch --- arch/arm/mach-rockchip/rk3308/rk3308.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/arch/arm/mach-rockchip/rk3308/rk3308.c b/arch/arm/mach-rockchip/rk3308/rk3308.c index c6b1a35f47e6..03d97e1d7460 100644 --- a/arch/arm/mach-rockchip/rk3308/rk3308.c +++ b/arch/arm/mach-rockchip/rk3308/rk3308.c @@ -216,3 +216,19 @@ int arch_cpu_init(void) return 0; } #endif + +#define RK3308_GRF_CHIP_ID 0xFF000800 + +int checkboard(void) +{ + u32 chip_id = readl(RK3308_GRF_CHIP_ID); + + if (chip_id == 0x3308) + printf("SoC: RK3308B\n"); + else if (chip_id == 0x3308c) + printf("SoC: RK3308B-S\n"); + else + printf("SoC: RK3308\n"); + + return 0; +}