diff options
Diffstat (limited to 'arch/arm/mach-omap2/id.c')
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index a5d4526ac4d6..bf45ff39a7b5 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -14,27 +14,19 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/io.h> -#include <asm/io.h> +#include <asm/cputype.h> +#include <mach/common.h> #include <mach/control.h> #include <mach/cpu.h> -#if defined(CONFIG_ARCH_OMAP2420) -#define TAP_BASE io_p2v(0x48014000) -#elif defined(CONFIG_ARCH_OMAP2430) -#define TAP_BASE io_p2v(0x4900A000) -#elif defined(CONFIG_ARCH_OMAP34XX) -#define TAP_BASE io_p2v(0x4830A000) -#endif +static u32 class; +static void __iomem *tap_base; +static u16 tap_prod_id; #define OMAP_TAP_IDCODE 0x0204 -#if defined(CONFIG_ARCH_OMAP34XX) -#define OMAP_TAP_PROD_ID 0x0210 -#else -#define OMAP_TAP_PROD_ID 0x0208 -#endif - #define OMAP_TAP_DIE_ID_0 0x0218 #define OMAP_TAP_DIE_ID_1 0x021C #define OMAP_TAP_DIE_ID_2 0x0220 @@ -93,18 +85,24 @@ static u32 __init read_tap_reg(int reg) * it means its Cortex r0p0 which is 3430 ES1 */ if ((((cpuid >> 4) & 0xFFF) == 0xC08) && ((cpuid & 0xF) == 0x0)) { + + if (reg == tap_prod_id) { + regval = 0x000F00F0; + goto out; + } + switch (reg) { case OMAP_TAP_IDCODE : regval = 0x0B7AE02F; break; /* Making DevType as 0xF in ES1 to differ from ES2 */ - case OMAP_TAP_PROD_ID : regval = 0x000F00F0; break; case OMAP_TAP_DIE_ID_0: regval = 0x01000000; break; case OMAP_TAP_DIE_ID_1: regval = 0x1012d687; break; case OMAP_TAP_DIE_ID_2: regval = 0x00000000; break; case OMAP_TAP_DIE_ID_3: regval = 0x2d2c0000; break; } } else - regval = __raw_readl(TAP_BASE + reg); + regval = __raw_readl(tap_base + reg); +out: return regval; } @@ -203,7 +201,7 @@ void __init omap2_check_revision(void) u8 rev; idcode = read_tap_reg(OMAP_TAP_IDCODE); - prod_id = read_tap_reg(OMAP_TAP_PROD_ID); + prod_id = read_tap_reg(tap_prod_id); hawkeye = (idcode >> 12) & 0xffff; rev = (idcode >> 28) & 0x0f; dev_type = (prod_id >> 16) & 0x0f; @@ -268,3 +266,13 @@ void __init omap2_check_revision(void) } +void __init omap2_set_globals_tap(struct omap_globals *omap2_globals) +{ + class = omap2_globals->class; + tap_base = omap2_globals->tap; + + if (class == 0x3430) + tap_prod_id = 0x0210; + else + tap_prod_id = 0x0208; +} |