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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2015-07-28 14:16:41 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-08-12 20:47:51 -0400 |
| commit | cfe5f0cda0f39fe833233fdffbac127fd7b3db4e (patch) | |
| tree | aedca1abfae65d89913c94f243e339a5453501e6 /arch/arm | |
| parent | 095a5ef88e08c3df0f273c20a39cb921900cfae6 (diff) | |
| download | u-boot-imx-cfe5f0cda0f39fe833233fdffbac127fd7b3db4e.zip u-boot-imx-cfe5f0cda0f39fe833233fdffbac127fd7b3db4e.tar.gz u-boot-imx-cfe5f0cda0f39fe833233fdffbac127fd7b3db4e.tar.bz2 | |
ARM: keystone2: Cleanup SoC detection
Add proper register definition for JTAG ID and
cleanup cpu_is_* functions.
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-keystone/include/mach/hardware.h | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/arch/arm/mach-keystone/include/mach/hardware.h b/arch/arm/mach-keystone/include/mach/hardware.h index 16cbcee..6082b87 100644 --- a/arch/arm/mach-keystone/include/mach/hardware.h +++ b/arch/arm/mach-keystone/include/mach/hardware.h @@ -237,6 +237,17 @@ typedef volatile unsigned int *dv_reg_p; /* SGMII SerDes */ #define KS2_SGMII_SERDES_BASE 0x0232a000 +/* JTAG ID register */ +#define JTAGID_VARIANT_SHIFT 28 +#define JTAGID_VARIANT_MASK (0xf << 28) +#define JTAGID_PART_NUM_SHIFT 12 +#define JTAGID_PART_NUM_MASK (0xffff << 12) + +/* PART NUMBER definitions */ +#define CPU_66AK2Hx 0xb981 +#define CPU_66AK2Ex 0xb9a6 +#define CPU_66AK2Lx 0xb9a7 + #ifdef CONFIG_SOC_K2HK #include <asm/arch/hardware-k2hk.h> #endif @@ -250,34 +261,33 @@ typedef volatile unsigned int *dv_reg_p; #endif #ifndef __ASSEMBLY__ -static inline int cpu_is_k2hk(void) + +static inline u16 get_part_number(void) { - unsigned int jtag_id = __raw_readl(KS2_JTAG_ID_REG); - unsigned int part_no = (jtag_id >> 12) & 0xffff; + u32 jtag_id = __raw_readl(KS2_JTAG_ID_REG); - return (part_no == 0xb981) ? 1 : 0; + return (jtag_id & JTAGID_PART_NUM_MASK) >> JTAGID_PART_NUM_SHIFT; } -static inline int cpu_is_k2e(void) +static inline u8 cpu_is_k2hk(void) { - unsigned int jtag_id = __raw_readl(KS2_JTAG_ID_REG); - unsigned int part_no = (jtag_id >> 12) & 0xffff; - - return (part_no == 0xb9a6) ? 1 : 0; + return get_part_number() == CPU_66AK2Hx; } -static inline int cpu_is_k2l(void) +static inline u8 cpu_is_k2e(void) { - unsigned int jtag_id = __raw_readl(KS2_JTAG_ID_REG); - unsigned int part_no = (jtag_id >> 12) & 0xffff; + return get_part_number() == CPU_66AK2Ex; +} - return (part_no == 0xb9a7) ? 1 : 0; +static inline u8 cpu_is_k2l(void) +{ + return get_part_number() == CPU_66AK2Lx; } -static inline int cpu_revision(void) +static inline u8 cpu_revision(void) { - unsigned int jtag_id = __raw_readl(KS2_JTAG_ID_REG); - unsigned int rev = (jtag_id >> 28) & 0xf; + u32 jtag_id = __raw_readl(KS2_JTAG_ID_REG); + u8 rev = (jtag_id & JTAGID_VARIANT_MASK) >> JTAGID_VARIANT_SHIFT; return rev; } |