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ARM: OMAP2: Use omap_rev() instead of system_rev

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system_rev is meant for board revision, this patch changes
all relevant instances to use the new omap_rev() function
liberating system_rev to be used with ATAG_REVISION as it
has been designed.

Signed-off-by: Lauri Leukkunen <lauri.leukkunen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Lauri Leukkunen
2008-12-10 17:36:31 -08:00
committed by Tony Lindgren
parent a882314303
commit 84a34344ea
7 changed files with 66 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-omap2/clock34xx.c
View File

@@ -475,7 +475,7 @@ int __init omap2_clk_init(void)
* Update this if there are further clock changes between ES2
* and production parts
*/
if (system_rev == OMAP3430_REV_ES1_0) {
if (omap_rev() == OMAP3430_REV_ES1_0) {
/* No 3430ES1-only rates exist, so no RATE_IN_3430ES1 */
cpu_clkflg |= CLOCK_IN_OMAP3430ES1;
} else {

34
arch/arm/mach-omap2/id.c
View File

@@ -23,6 +23,14 @@
#include <mach/cpu.h>
static struct omap_chip_id omap_chip;
static unsigned int omap_revision;
unsigned int omap_rev(void)
{
return omap_revision;
}
EXPORT_SYMBOL(omap_rev);
/**
* omap_chip_is - test whether currently running OMAP matches a chip type
@@ -50,7 +58,7 @@ EXPORT_SYMBOL(omap_chip_is);
struct omap_id {
u16 hawkeye; /* Silicon type (Hawkeye id) */
u8 dev; /* Device type from production_id reg */
u32 type; /* Combined type id copied to system_rev */
u32 type; /* Combined type id copied to omap_revision */
};
/* Register values to detect the OMAP version */
@@ -116,9 +124,9 @@ void __init omap24xx_check_revision(void)
j = i;
}
pr_info("OMAP%04x", system_rev >> 16);
if ((system_rev >> 8) & 0x0f)
pr_info("ES%x", (system_rev >> 12) & 0xf);
pr_info("OMAP%04x", omap_rev() >> 16);
if ((omap_rev() >> 8) & 0x0f)
pr_info("ES%x", (omap_rev() >> 12) & 0xf);
pr_info("\n");
}
@@ -136,7 +144,7 @@ void __init omap34xx_check_revision(void)
*/
cpuid = read_cpuid(CPUID_ID);
if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) {
system_rev = OMAP3430_REV_ES1_0;
omap_revision = OMAP3430_REV_ES1_0;
goto out;
}
@@ -153,26 +161,26 @@ void __init omap34xx_check_revision(void)
if (hawkeye == 0xb7ae) {
switch (rev) {
case 0:
system_rev = OMAP3430_REV_ES2_0;
omap_revision = OMAP3430_REV_ES2_0;
rev_name = "ES2.0";
break;
case 2:
system_rev = OMAP3430_REV_ES2_1;
omap_revision = OMAP3430_REV_ES2_1;
rev_name = "ES2.1";
break;
case 3:
system_rev = OMAP3430_REV_ES3_0;
omap_revision = OMAP3430_REV_ES3_0;
rev_name = "ES3.0";
break;
default:
/* Use the latest known revision as default */
system_rev = OMAP3430_REV_ES3_0;
omap_revision = OMAP3430_REV_ES3_0;
rev_name = "Unknown revision\n";
}
}
out:
pr_info("OMAP%04x %s\n", system_rev >> 16, rev_name);
pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
}
/*
@@ -203,9 +211,9 @@ void __init omap2_check_revision(void)
omap_chip.oc |= CHIP_IS_OMAP2420;
} else if (cpu_is_omap343x()) {
omap_chip.oc = CHIP_IS_OMAP3430;
if (system_rev == OMAP3430_REV_ES1_0)
if (omap_rev() == OMAP3430_REV_ES1_0)
omap_chip.oc |= CHIP_IS_OMAP3430ES1;
else if (system_rev > OMAP3430_REV_ES1_0)
else if (omap_rev() > OMAP3430_REV_ES1_0)
omap_chip.oc |= CHIP_IS_OMAP3430ES2;
} else {
pr_err("Uninitialized omap_chip, please fix!\n");
@@ -221,7 +229,7 @@ void __init omap2_check_revision(void)
*/
void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
{
system_rev = omap2_globals->class;
omap_revision = omap2_globals->class;
tap_base = omap2_globals->tap;
if (cpu_is_omap34xx())