diff options
| author | Lokesh Vutla <lokeshvutla@ti.com> | 2019-09-27 13:32:11 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-10-11 13:31:18 -0400 |
| commit | f8ca9121896bcff1476943a96d7392eb05f55364 (patch) | |
| tree | fc2ed8e70da57027be6733842cd2daad08b3e85a /arch | |
| parent | d53a1772718f58950f6ee5968ca08fd6926ca3c2 (diff) | |
| download | u-boot-f8ca9121896bcff1476943a96d7392eb05f55364.zip u-boot-f8ca9121896bcff1476943a96d7392eb05f55364.tar.gz u-boot-f8ca9121896bcff1476943a96d7392eb05f55364.tar.bz2 | |
arm: k3: Add support for printing CPUINFO
Add support for printing CPU info for all K3 devices.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-k3/common.c | 42 | ||||
| -rw-r--r-- | arch/arm/mach-k3/common.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-k3/include/mach/hardware.h | 18 |
3 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c index 6c453b9..97aa15d 100644 --- a/arch/arm/mach-k3/common.c +++ b/arch/arm/mach-k3/common.c @@ -14,6 +14,8 @@ #include <linux/soc/ti/ti_sci_protocol.h> #include <fdt_support.h> #include <asm/arch/sys_proto.h> +#include <asm/hardware.h> +#include <asm/io.h> struct ti_sci_handle *get_ti_sci_handle(void) { @@ -190,3 +192,43 @@ void reset_cpu(ulong ignored) { } #endif + +#if defined(CONFIG_DISPLAY_CPUINFO) +int print_cpuinfo(void) +{ + u32 soc, rev; + char *name; + + soc = (readl(CTRLMMR_WKUP_JTAG_DEVICE_ID) & + DEVICE_ID_FAMILY_MASK) >> DEVICE_ID_FAMILY_SHIFT; + rev = (readl(CTRLMMR_WKUP_JTAG_ID) & + JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT; + + printf("SoC: "); + switch (soc) { + case AM654: + name = "AM654"; + break; + case J721E: + name = "J721E"; + break; + default: + name = "Unknown Silicon"; + }; + + printf("%s PG ", name); + switch (rev) { + case REV_PG1_0: + name = "1.0"; + break; + case REV_PG2_0: + name = "2.0"; + break; + default: + name = "Unknown Revision"; + }; + printf("%s\n", name); + + return 0; +} +#endif diff --git a/arch/arm/mach-k3/common.h b/arch/arm/mach-k3/common.h index ab68e14..8f9a023 100644 --- a/arch/arm/mach-k3/common.h +++ b/arch/arm/mach-k3/common.h @@ -8,5 +8,11 @@ #include <asm/armv7_mpu.h> +#define AM654 2 +#define J721E 4 + +#define REV_PG1_0 0 +#define REV_PG2_0 1 + void setup_k3_mpu_regions(void); int early_console_init(void); diff --git a/arch/arm/mach-k3/include/mach/hardware.h b/arch/arm/mach-k3/include/mach/hardware.h index 4e62982..d670d5a 100644 --- a/arch/arm/mach-k3/include/mach/hardware.h +++ b/arch/arm/mach-k3/include/mach/hardware.h @@ -13,4 +13,22 @@ #ifdef CONFIG_SOC_K3_J721E #include "j721e_hardware.h" #endif + +/* Assuming these addresses and definitions stay common across K3 devices */ +#define CTRLMMR_WKUP_JTAG_DEVICE_ID 0x43000018 +#define DEVICE_ID_FAMILY_SHIFT 26 +#define DEVICE_ID_FAMILY_MASK (0x3f << 26) +#define DEVICE_ID_BASE_SHIFT 11 +#define DEVICE_ID_BASE_MASK (0x1fff << 11) +#define DEVICE_ID_SPEED_SHIFT 6 +#define DEVICE_ID_SPEED_MASK (0x1f << 6) +#define DEVICE_ID_TEMP_SHIFT 3 +#define DEVICE_ID_TEMP_MASK (0x7 << 3) + +#define CTRLMMR_WKUP_JTAG_ID 0x43000014 +#define JTAG_ID_VARIANT_SHIFT 28 +#define JTAG_ID_VARIANT_MASK (0xf << 28) +#define JTAG_ID_PARTNO_SHIFT 12 +#define JTAG_ID_PARTNO_MASK (0x7ff << 1) + #endif /* _ASM_ARCH_HARDWARE_H_ */ |