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Diffstat (limited to 'arch/arm/mach-omap2/id.c')
-rw-r--r--arch/arm/mach-omap2/id.c191
1 files changed, 51 insertions, 140 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 37efb869692..d27daf921c7 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -28,7 +28,6 @@
#include "control.h"
-static struct omap_chip_id omap_chip;
static unsigned int omap_revision;
u32 omap_features;
@@ -39,19 +38,6 @@ unsigned int omap_rev(void)
}
EXPORT_SYMBOL(omap_rev);
-/**
- * omap_chip_is - test whether currently running OMAP matches a chip type
- * @oc: omap_chip_t to test against
- *
- * Test whether the currently-running OMAP chip matches the supplied
- * chip type 'oc'. Returns 1 upon a match; 0 upon failure.
- */
-int omap_chip_is(struct omap_chip_id oci)
-{
- return (oci.oc & omap_chip.oc) ? 1 : 0;
-}
-EXPORT_SYMBOL(omap_chip_is);
-
int omap_type(void)
{
u32 val = 0;
@@ -242,14 +228,12 @@ static void __init ti816x_check_features(void)
omap_features = OMAP3_HAS_NEON;
}
-static void __init omap3_check_revision(void)
+static void __init omap3_check_revision(const char **cpu_rev)
{
u32 cpuid, idcode;
u16 hawkeye;
u8 rev;
- omap_chip.oc = CHIP_IS_OMAP3430;
-
/*
* We cannot access revision registers on ES1.0.
* If the processor type is Cortex-A8 and the revision is 0x0
@@ -258,7 +242,7 @@ static void __init omap3_check_revision(void)
cpuid = read_cpuid(CPUID_ID);
if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) {
omap_revision = OMAP3430_REV_ES1_0;
- omap_chip.oc |= CHIP_IS_OMAP3430ES1;
+ *cpu_rev = "1.0";
return;
}
@@ -279,77 +263,85 @@ static void __init omap3_check_revision(void)
case 0: /* Take care of early samples */
case 1:
omap_revision = OMAP3430_REV_ES2_0;
- omap_chip.oc |= CHIP_IS_OMAP3430ES2;
+ *cpu_rev = "2.0";
break;
case 2:
omap_revision = OMAP3430_REV_ES2_1;
- omap_chip.oc |= CHIP_IS_OMAP3430ES2;
+ *cpu_rev = "2.1";
break;
case 3:
omap_revision = OMAP3430_REV_ES3_0;
- omap_chip.oc |= CHIP_IS_OMAP3430ES3_0;
+ *cpu_rev = "3.0";
break;
case 4:
omap_revision = OMAP3430_REV_ES3_1;
- omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
+ *cpu_rev = "3.1";
break;
case 7:
/* FALLTHROUGH */
default:
/* Use the latest known revision as default */
omap_revision = OMAP3430_REV_ES3_1_2;
-
- /* REVISIT: Add CHIP_IS_OMAP3430ES3_1_2? */
- omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
+ *cpu_rev = "3.1.2";
}
break;
case 0xb868:
- /* Handle OMAP35xx/AM35xx devices
+ /*
+ * Handle OMAP/AM 3505/3517 devices
*
- * Set the device to be OMAP3505 here. Actual device
+ * Set the device to be OMAP3517 here. Actual device
* is identified later based on the features.
- *
- * REVISIT: AM3505/AM3517 should have their own CHIP_IS
*/
- omap_revision = OMAP3505_REV(rev);
- omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
+ switch (rev) {
+ case 0:
+ omap_revision = OMAP3517_REV_ES1_0;
+ *cpu_rev = "1.0";
+ break;
+ case 1:
+ /* FALLTHROUGH */
+ default:
+ omap_revision = OMAP3517_REV_ES1_1;
+ *cpu_rev = "1.1";
+ }
break;
case 0xb891:
/* Handle 36xx devices */
- omap_chip.oc |= CHIP_IS_OMAP3630ES1;
switch(rev) {
case 0: /* Take care of early samples */
omap_revision = OMAP3630_REV_ES1_0;
+ *cpu_rev = "1.0";
break;
case 1:
omap_revision = OMAP3630_REV_ES1_1;
- omap_chip.oc |= CHIP_IS_OMAP3630ES1_1;
+ *cpu_rev = "1.1";
break;
case 2:
+ /* FALLTHROUGH */
default:
- omap_revision = OMAP3630_REV_ES1_2;
- omap_chip.oc |= CHIP_IS_OMAP3630ES1_2;
+ omap_revision = OMAP3630_REV_ES1_2;
+ *cpu_rev = "1.2";
}
break;
case 0xb81e:
- omap_chip.oc = CHIP_IS_TI816X;
-
switch (rev) {
case 0:
omap_revision = TI8168_REV_ES1_0;
+ *cpu_rev = "1.0";
break;
case 1:
+ /* FALLTHROUGH */
+ default:
omap_revision = TI8168_REV_ES1_1;
+ *cpu_rev = "1.1";
break;
- default:
- omap_revision = TI8168_REV_ES1_1;
}
break;
default:
- /* Unknown default to latest silicon rev as default*/
- omap_revision = OMAP3630_REV_ES1_2;
- omap_chip.oc |= CHIP_IS_OMAP3630ES1_2;
+ /* Unknown default to latest silicon rev as default */
+ omap_revision = OMAP3630_REV_ES1_2;
+ *cpu_rev = "1.2";
+ pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n");
}
}
@@ -382,24 +374,20 @@ static void __init omap4_check_revision(void)
switch (rev) {
case 0:
omap_revision = OMAP4430_REV_ES1_0;
- omap_chip.oc |= CHIP_IS_OMAP4430ES1;
break;
case 1:
default:
omap_revision = OMAP4430_REV_ES2_0;
- omap_chip.oc |= CHIP_IS_OMAP4430ES2;
}
break;
case 0xb95c:
switch (rev) {
case 3:
omap_revision = OMAP4430_REV_ES2_1;
- omap_chip.oc |= CHIP_IS_OMAP4430ES2_1;
break;
case 4:
default:
omap_revision = OMAP4430_REV_ES2_2;
- omap_chip.oc |= CHIP_IS_OMAP4430ES2_2;
}
break;
case 0xb94e:
@@ -407,14 +395,12 @@ static void __init omap4_check_revision(void)
case 0:
default:
omap_revision = OMAP4460_REV_ES1_0;
- omap_chip.oc |= CHIP_IS_OMAP4460ES1_0;
break;
}
break;
default:
/* Unknown default to latest silicon rev as default */
omap_revision = OMAP4430_REV_ES2_2;
- omap_chip.oc |= CHIP_IS_OMAP4430ES2_2;
}
pr_info("OMAP%04x ES%d.%d\n", omap_rev() >> 16,
@@ -425,94 +411,33 @@ static void __init omap4_check_revision(void)
if (omap3_has_ ##feat()) \
printk(#feat" ");
-static void __init omap3_cpuinfo(void)
+static void __init omap3_cpuinfo(const char *cpu_rev)
{
- u8 rev = GET_OMAP_REVISION();
- char cpu_name[16], cpu_rev[16];
+ const char *cpu_name;
- /* OMAP3430 and OMAP3530 are assumed to be same.
+ /*
+ * OMAP3430 and OMAP3530 are assumed to be same.
*
* OMAP3525, OMAP3515 and OMAP3503 can be detected only based
* on available features. Upon detection, update the CPU id
* and CPU class bits.
*/
if (cpu_is_omap3630()) {
- strcpy(cpu_name, "OMAP3630");
- } else if (cpu_is_omap3505()) {
- /*
- * AM35xx devices
- */
- if (omap3_has_sgx()) {
- omap_revision = OMAP3517_REV(rev);
- strcpy(cpu_name, "AM3517");
- } else {
- /* Already set in omap3_check_revision() */
- strcpy(cpu_name, "AM3505");
- }
+ cpu_name = "OMAP3630";
+ } else if (cpu_is_omap3517()) {
+ /* AM35xx devices */
+ cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505";
} else if (cpu_is_ti816x()) {
- strcpy(cpu_name, "TI816X");
+ cpu_name = "TI816X";
} else if (omap3_has_iva() && omap3_has_sgx()) {
/* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
- strcpy(cpu_name, "OMAP3430/3530");
+ cpu_name = "OMAP3430/3530";
} else if (omap3_has_iva()) {
- omap_revision = OMAP3525_REV(rev);
- strcpy(cpu_name, "OMAP3525");
+ cpu_name = "OMAP3525";
} else if (omap3_has_sgx()) {
- omap_revision = OMAP3515_REV(rev);
- strcpy(cpu_name, "OMAP3515");
+ cpu_name = "OMAP3515";
} else {
- omap_revision = OMAP3503_REV(rev);
- strcpy(cpu_name, "OMAP3503");
- }
-
- if (cpu_is_omap3630() || cpu_is_ti816x()) {
- 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");
- }
+ cpu_name = "OMAP3503";
}
/* Print verbose information */
@@ -533,6 +458,8 @@ static void __init omap3_cpuinfo(void)
*/
void __init omap2_check_revision(void)
{
+ const char *cpu_rev;
+
/*
* At this point we have an idea about the processor revision set
* earlier with omap2_set_globals_tap().
@@ -540,7 +467,7 @@ void __init omap2_check_revision(void)
if (cpu_is_omap24xx()) {
omap24xx_check_revision();
} else if (cpu_is_omap34xx()) {
- omap3_check_revision();
+ omap3_check_revision(&cpu_rev);
/* TI816X doesn't have feature register */
if (!cpu_is_ti816x())
@@ -548,7 +475,7 @@ void __init omap2_check_revision(void)
else
ti816x_check_features();
- omap3_cpuinfo();
+ omap3_cpuinfo(cpu_rev);
return;
} else if (cpu_is_omap44xx()) {
omap4_check_revision();
@@ -557,22 +484,6 @@ void __init omap2_check_revision(void)
} else {
pr_err("OMAP revision unknown, please fix!\n");
}
-
- /*
- * OK, now we know the exact revision. Initialize omap_chip bits
- * for powerdowmain and clockdomain code.
- */
- if (cpu_is_omap243x()) {
- /* Currently only supports 2430ES2.1 and 2430-all */
- omap_chip.oc |= CHIP_IS_OMAP2430;
- return;
- } else if (cpu_is_omap242x()) {
- /* Currently only supports 2420ES2.1.1 and 2420-all */
- omap_chip.oc |= CHIP_IS_OMAP2420;
- return;
- }
-
- pr_err("Uninitialized omap_chip, please fix!\n");
}
/*
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 15:50:55 +0000