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Diffstat (limited to 'arch/arm/mach-omap2/id.c')
-rw-r--r--arch/arm/mach-omap2/id.c42
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;
+}