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Diffstat (limited to 'arch/arm/mach-omap2/id.c')
-rw-r--r--arch/arm/mach-omap2/id.c115
1 files changed, 82 insertions, 33 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 9a879f959509..5f9086c65e48 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -22,11 +22,12 @@
#include <asm/cputype.h>
#include <plat/common.h>
-#include <plat/control.h>
#include <plat/cpu.h>
#include <mach/id.h>
+#include "control.h"
+
static struct omap_chip_id omap_chip;
static unsigned int omap_revision;
@@ -60,7 +61,7 @@ int omap_type(void)
} else if (cpu_is_omap34xx()) {
val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
} else if (cpu_is_omap44xx()) {
- val = omap_ctrl_readl(OMAP44XX_CONTROL_STATUS);
+ val = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STATUS);
} else {
pr_err("Cannot detect omap type!\n");
goto out;
@@ -298,7 +299,6 @@ static void __init omap4_check_revision(void)
u32 idcode;
u16 hawkeye;
u8 rev;
- char *rev_name = "ES1.0";
/*
* The IC rev detection is done with hawkeye and rev.
@@ -309,14 +309,39 @@ static void __init omap4_check_revision(void)
hawkeye = (idcode >> 12) & 0xffff;
rev = (idcode >> 28) & 0xff;
- if ((hawkeye == 0xb852) && (rev == 0x0)) {
- omap_revision = OMAP4430_REV_ES1_0;
- omap_chip.oc |= CHIP_IS_OMAP4430ES1;
- pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
- return;
+ /*
+ * Few initial ES2.0 samples IDCODE is same as ES1.0
+ * Use ARM register to detect the correct ES version
+ */
+ if (!rev) {
+ idcode = read_cpuid(CPUID_ID);
+ rev = (idcode & 0xf) - 1;
+ }
+
+ switch (hawkeye) {
+ case 0xb852:
+ switch (rev) {
+ case 0:
+ omap_revision = OMAP4430_REV_ES1_0;
+ omap_chip.oc |= CHIP_IS_OMAP4430ES1;
+ break;
+ case 1:
+ omap_revision = OMAP4430_REV_ES2_0;
+ omap_chip.oc |= CHIP_IS_OMAP4430ES2;
+ break;
+ default:
+ omap_revision = OMAP4430_REV_ES2_0;
+ omap_chip.oc |= CHIP_IS_OMAP4430ES2;
+ }
+ break;
+ default:
+ /* Unknown default to latest silicon rev as default*/
+ omap_revision = OMAP4430_REV_ES2_0;
+ omap_chip.oc |= CHIP_IS_OMAP4430ES2;
}
- pr_err("Unknown OMAP4 CPU id\n");
+ pr_info("OMAP%04x ES%d.0\n",
+ omap_rev() >> 16, ((omap_rev() >> 12) & 0xf) + 1);
}
#define OMAP3_SHOW_FEATURE(feat) \
@@ -361,30 +386,54 @@ static void __init omap3_cpuinfo(void)
strcpy(cpu_name, "OMAP3503");
}
- switch (rev) {
- case OMAP_REVBITS_00:
- strcpy(cpu_rev, "1.0");
- break;
- case OMAP_REVBITS_01:
- strcpy(cpu_rev, "1.1");
- break;
- case OMAP_REVBITS_02:
- strcpy(cpu_rev, "1.2");
- break;
- case OMAP_REVBITS_10:
- strcpy(cpu_rev, "2.0");
- break;
- case OMAP_REVBITS_20:
- strcpy(cpu_rev, "2.1");
- break;
- case OMAP_REVBITS_30:
- strcpy(cpu_rev, "3.0");
- break;
- case OMAP_REVBITS_40:
- /* FALLTHROUGH */
- default:
- /* Use the latest known revision as default */
- strcpy(cpu_rev, "3.1");
+ if (cpu_is_omap3630()) {
+ switch (rev) {
+ case OMAP_REVBITS_00:
+ strcpy(cpu_rev, "1.0");
+ break;
+ case OMAP_REVBITS_01:
+ strcpy(cpu_rev, "1.1");
+ break;
+ case OMAP_REVBITS_02:
+ /* FALLTHROUGH */
+ default:
+ /* Use the latest known revision as default */
+ strcpy(cpu_rev, "1.2");
+ }
+ } else if (cpu_is_omap3505() || cpu_is_omap3517()) {
+ switch (rev) {
+ case OMAP_REVBITS_00:
+ strcpy(cpu_rev, "1.0");
+ break;
+ case OMAP_REVBITS_01:
+ /* FALLTHROUGH */
+ default:
+ /* Use the latest known revision as default */
+ strcpy(cpu_rev, "1.1");
+ }
+ } else {
+ switch (rev) {
+ case OMAP_REVBITS_00:
+ strcpy(cpu_rev, "1.0");
+ break;
+ case OMAP_REVBITS_01:
+ strcpy(cpu_rev, "2.0");
+ break;
+ case OMAP_REVBITS_02:
+ strcpy(cpu_rev, "2.1");
+ break;
+ case OMAP_REVBITS_03:
+ strcpy(cpu_rev, "3.0");
+ break;
+ case OMAP_REVBITS_04:
+ strcpy(cpu_rev, "3.1");
+ break;
+ case OMAP_REVBITS_05:
+ /* FALLTHROUGH */
+ default:
+ /* Use the latest known revision as default */
+ strcpy(cpu_rev, "3.1.2");
+ }
}
/* Print verbose information */