From 39389cfb3dfe10bc549b0719688285629b11c25d Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Sun, 10 Nov 2024 00:56:17 +0000 Subject: [PATCH] rockchip: rk3308: Implement checkboard() to print SoC variant 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 --- 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 c6b1a35f47e..03d97e1d746 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; +} -- 2.39.5