On Sun, 3 Nov 2024 at 02:08, Jonas Karlman jonas@kwiboo.se wrote:
Implement checkboard() to print current SoC model used by a board, e.g. one of:
SoC: RK3582 v1 SoC: RK3588 v0 SoC: RK3588 v1 SoC: RK3588S v0 SoC: RK3588S v1 SoC: RK3588S2 v1
when U-Boot proper is running.
U-Boot 2025.01-rc1 (Nov 02 2024 - 20:19:01 +0000)
Model: Generic RK3588S/RK3588 SoC: RK3588S2 v1 DRAM: 8 GiB
Information about the SoC model, variant and version is read from OTP.
Also update rk3588s-u-boot.dtsi to include OTP in U-Boot pre-reloc phase, where checkboard() is called.
Signed-off-by: Jonas Karlman jonas@kwiboo.se
v2:
- Update commit message
- Update code comments
- Drop generic-rk3588_defconfig change
arch/arm/dts/rk3588s-u-boot.dtsi | 4 ++ arch/arm/mach-rockchip/rk3588/rk3588.c | 58 ++++++++++++++++++++++++++ 2 files changed, 62 insertions(+)
diff --git a/arch/arm/dts/rk3588s-u-boot.dtsi
b/arch/arm/dts/rk3588s-u-boot.dtsi
index 09d8b311cec5..8880d162b11c 100644 --- a/arch/arm/dts/rk3588s-u-boot.dtsi +++ b/arch/arm/dts/rk3588s-u-boot.dtsi @@ -69,6 +69,10 @@ bootph-all; };
+&otp {
bootph-some-ram;+};
&pcfg_pull_down { bootph-all; }; diff --git a/arch/arm/mach-rockchip/rk3588/rk3588.c
b/arch/arm/mach-rockchip/rk3588/rk3588.c
index e2dac2a5b806..f9da7a6f1477 100644 --- a/arch/arm/mach-rockchip/rk3588/rk3588.c +++ b/arch/arm/mach-rockchip/rk3588/rk3588.c @@ -4,6 +4,8 @@
- Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
*/
+#include <dm.h> +#include <misc.h> #include <spl.h> #include <asm/armv8/mmu.h> #include <asm/arch-rockchip/bootrom.h> @@ -178,3 +180,59 @@ int arch_cpu_init(void) return 0; } #endif
+#define RK3588_OTP_CPU_CODE_OFFSET 0x02 +#define RK3588_OTP_SPECIFICATION_OFFSET 0x06 +#define RK3588_OTP_CPU_VERSION_OFFSET 0x1c
+int checkboard(void) +{
u8 cpu_code[2], specification, package, cpu_version;struct udevice *dev;char suffix[3];int ret;ret = uclass_get_device_by_driver(UCLASS_MISC,DM_DRIVER_GET(rockchip_otp),
&dev);
if (ret) {debug("%s: could not find otp device, ret=%d\n",
__func__, ret);
return 0;}/* cpu-code: SoC model, e.g. 0x35 0x82 or 0x35 0x88 */ret = misc_read(dev, RK3588_OTP_CPU_CODE_OFFSET, cpu_code, 2);if (ret < 0) {debug("%s: could not read cpu-code, ret=%d\n", __func__,
ret);
return 0;}/* specification: SoC variant, e.g. 0xA for RK3588J and 0x13 for
RK3588S */
ret = misc_read(dev, RK3588_OTP_SPECIFICATION_OFFSET,
&specification, 1);
Any register to find the operating temperature of the chip?
Jagan.