rockchip: rk3568: Read cpuid from otp
The cpuid on RK3568 is located at 0xa instead of 0x7 as all other SoCs.
Add and use a CFG_CPUID_OFFSET to define this offset.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk356x-u-boot.dtsi b/arch/arm/dts/rk356x-u-boot.dtsi
index 4e2d059..2331641 100644
--- a/arch/arm/dts/rk356x-u-boot.dtsi
+++ b/arch/arm/dts/rk356x-u-boot.dtsi
@@ -20,6 +20,18 @@
u-boot,dm-pre-reloc;
status = "okay";
};
+
+ otp: nvmem@fe38c000 {
+ compatible = "rockchip,rk3568-otp";
+ reg = <0x0 0xfe38c000 0x0 0x4000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "okay";
+
+ cpu_id: id@a {
+ reg = <0x0a 0x10>;
+ };
+ };
};
&combphy1 {
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 26ba9de..88be068 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -289,6 +289,8 @@
select DM_REGULATOR_FIXED
select DM_RESET
imply ROCKCHIP_COMMON_BOARD
+ imply ROCKCHIP_OTP
+ imply MISC_INIT_R
help
The Rockchip RK3568 is a ARM-based SoC with quad-core Cortex-A55,
including NEON and GPU, 512K L3 cache, Mali-G52 based graphics,
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
index ebffb6c..f1f70c8 100644
--- a/arch/arm/mach-rockchip/board.c
+++ b/arch/arm/mach-rockchip/board.c
@@ -323,7 +323,7 @@
#ifdef CONFIG_MISC_INIT_R
__weak int misc_init_r(void)
{
- const u32 cpuid_offset = 0x7;
+ const u32 cpuid_offset = CFG_CPUID_OFFSET;
const u32 cpuid_length = 0x10;
u8 cpuid[cpuid_length];
int ret;
diff --git a/include/configs/rk3568_common.h b/include/configs/rk3568_common.h
index ae36010..a5e1dde 100644
--- a/include/configs/rk3568_common.h
+++ b/include/configs/rk3568_common.h
@@ -6,6 +6,8 @@
#ifndef __CONFIG_RK3568_COMMON_H
#define __CONFIG_RK3568_COMMON_H
+#define CFG_CPUID_OFFSET 0xa
+
#include "rockchip-common.h"
#define CFG_IRAM_BASE 0xfdcc0000
diff --git a/include/configs/rockchip-common.h b/include/configs/rockchip-common.h
index ff8123d..b7c5c66 100644
--- a/include/configs/rockchip-common.h
+++ b/include/configs/rockchip-common.h
@@ -7,6 +7,10 @@
#define _ROCKCHIP_COMMON_H_
#include <linux/sizes.h>
+#ifndef CFG_CPUID_OFFSET
+#define CFG_CPUID_OFFSET 0x7
+#endif
+
/* ((CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR - 64) * 512) */
#ifndef CONFIG_SPL_BUILD