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ARM: mx5: use generic function for displaying silicon revision

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Update to use generic function for displaying silicon revision

Tested on my mx53 loco board:
CPU identified as i.MX53, silicon rev 2.0

Test on my mx51 babbage board:
CPU identified as i.MX51, silicon rev 3.0

Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jason Liu
2011-08-26 13:35:23 +08:00
committed by Sascha Hauer
parent 8d75a2620d
commit c52c983551
2 changed files with 19 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
arch/arm/mach-mx5/cpu.c
View File

@ -18,7 +18,7 @@
#include <mach/hardware.h>
#include <asm/io.h>
static int cpu_silicon_rev = -1;
static int mx5_cpu_rev = -1;
#define IIM_SREV 0x24
#define MX50_HW_ADADIG_DIGPROG 0xB0
@ -28,11 +28,14 @@ static int get_mx51_srev(void)
void __iomem *iim_base = MX51_IO_ADDRESS(MX51_IIM_BASE_ADDR);
u32 rev = readl(iim_base + IIM_SREV) & 0xff;
if (rev == 0x0)
switch (rev) {
case 0x0:
return IMX_CHIP_REVISION_2_0;
else if (rev == 0x10)
case 0x10:
return IMX_CHIP_REVISION_3_0;
return 0;
default:
return IMX_CHIP_REVISION_UNKNOWN;
}
}
/*
@ -45,33 +48,13 @@ int mx51_revision(void)
if (!cpu_is_mx51())
return -EINVAL;
if (cpu_silicon_rev == -1)
cpu_silicon_rev = get_mx51_srev();
if (mx5_cpu_rev == -1)
mx5_cpu_rev = get_mx51_srev();
return cpu_silicon_rev;
return mx5_cpu_rev;
}
EXPORT_SYMBOL(mx51_revision);
void mx51_display_revision(void)
{
int rev;
char *srev;
rev = mx51_revision();
switch (rev) {
case IMX_CHIP_REVISION_2_0:
srev = IMX_CHIP_REVISION_2_0_STRING;
break;
case IMX_CHIP_REVISION_3_0:
srev = IMX_CHIP_REVISION_3_0_STRING;
break;
default:
srev = IMX_CHIP_REVISION_UNKNOWN_STRING;
}
printk(KERN_INFO "CPU identified as i.MX51, silicon rev %s\n", srev);
}
EXPORT_SYMBOL(mx51_display_revision);
#ifdef CONFIG_NEON
/*
@ -121,10 +104,10 @@ int mx53_revision(void)
if (!cpu_is_mx53())
return -EINVAL;
if (cpu_silicon_rev == -1)
cpu_silicon_rev = get_mx53_srev();
if (mx5_cpu_rev == -1)
mx5_cpu_rev = get_mx53_srev();
return cpu_silicon_rev;
return mx5_cpu_rev;
}
EXPORT_SYMBOL(mx53_revision);
@ -134,7 +117,7 @@ static int get_mx50_srev(void)
u32 rev;
if (!anatop) {
cpu_silicon_rev = -EINVAL;
mx5_cpu_rev = -EINVAL;
return 0;
}
@ -159,36 +142,13 @@ int mx50_revision(void)
if (!cpu_is_mx50())
return -EINVAL;
if (cpu_silicon_rev == -1)
cpu_silicon_rev = get_mx50_srev();
if (mx5_cpu_rev == -1)
mx5_cpu_rev = get_mx50_srev();
return cpu_silicon_rev;
return mx5_cpu_rev;
}
EXPORT_SYMBOL(mx50_revision);
void mx53_display_revision(void)
{
int rev;
char *srev;
rev = mx53_revision();
switch (rev) {
case IMX_CHIP_REVISION_1_0:
srev = IMX_CHIP_REVISION_1_0_STRING;
break;
case IMX_CHIP_REVISION_2_0:
srev = IMX_CHIP_REVISION_2_0_STRING;
break;
case IMX_CHIP_REVISION_2_1:
srev = IMX_CHIP_REVISION_2_1_STRING;
break;
default:
srev = IMX_CHIP_REVISION_UNKNOWN_STRING;
}
printk(KERN_INFO "CPU identified as i.MX53, silicon rev %s\n", srev);
}
EXPORT_SYMBOL(mx53_display_revision);
static int __init post_cpu_init(void)
{
unsigned int reg;