diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3576/rk3576.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3576/rk3576.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3576/rk3576.c b/arch/arm/mach-rockchip/rk3576/rk3576.c index ba5c94b4b3d..a6c2fbdc484 100644 --- a/arch/arm/mach-rockchip/rk3576/rk3576.c +++ b/arch/arm/mach-rockchip/rk3576/rk3576.c @@ -3,6 +3,10 @@ * Copyright (c) 2024 Rockchip Electronics Co., Ltd */ +#define LOG_CATEGORY LOGC_ARCH + +#include <dm.h> +#include <misc.h> #include <asm/armv8/mmu.h> #include <asm/arch-rockchip/bootrom.h> #include <asm/arch-rockchip/hardware.h> @@ -29,6 +33,9 @@ #define SGRF_DOMAIN_CON4 0x10 #define SGRF_DOMAIN_CON5 0x14 +#define USB_GRF_BASE 0x2601E000 +#define USB3OTG0_CON1 0x0030 + const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = { [BROM_BOOTSOURCE_EMMC] = "/soc/mmc@2a330000", [BROM_BOOTSOURCE_SD] = "/soc/mmc@2a310000", @@ -151,5 +158,52 @@ int arch_cpu_init(void) */ writel(0xffffff00, SYS_SGRF_BASE + SYS_SGRF_SOC_CON20); + /* Disable USB3OTG0 U3 port, later enabled by USBDP PHY driver */ + writel(0xffff0188, USB_GRF_BASE + USB3OTG0_CON1); + + return 0; +} + +#define RK3576_OTP_CPU_CODE_OFFSET 0x02 +#define RK3576_OTP_SPECIFICATION_OFFSET 0x08 + +int checkboard(void) +{ + u8 cpu_code[2], specification; + struct udevice *dev; + char suffix[2]; + int ret; + + if (!IS_ENABLED(CONFIG_ROCKCHIP_OTP) || !CONFIG_IS_ENABLED(MISC)) + return 0; + + ret = uclass_get_device_by_driver(UCLASS_MISC, + DM_DRIVER_GET(rockchip_otp), &dev); + if (ret) { + log_debug("Could not find otp device, ret=%d\n", ret); + return 0; + } + + /* cpu-code: SoC model, e.g. 0x35 0x76 */ + ret = misc_read(dev, RK3576_OTP_CPU_CODE_OFFSET, cpu_code, 2); + if (ret < 0) { + log_debug("Could not read cpu-code, ret=%d\n", ret); + return 0; + } + + /* specification: SoC variant, e.g. 0xA for RK3576J */ + ret = misc_read(dev, RK3576_OTP_SPECIFICATION_OFFSET, &specification, 1); + if (ret < 0) { + log_debug("Could not read specification, ret=%d\n", ret); + return 0; + } + specification &= 0x1f; + + /* for RK3576J i.e. '@' + 0xA = 'J' */ + suffix[0] = specification > 1 ? '@' + specification : '\0'; + suffix[1] = '\0'; + + printf("SoC: RK%02x%02x%s\n", cpu_code[0], cpu_code[1], suffix); + return 0; } |