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ARM: tegra: fuse: use apbio dma for register access

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Use the apbio dma functions for accessing the fuse registers.

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson
2011-10-13 00:14:08 -07:00
parent e2f91578b3
commit d262f49d10
1 changed files with 8 additions and 12 deletions
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20
arch/arm/mach-tegra/fuse.c
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@@ -23,20 +23,16 @@
#include <mach/iomap.h> #include <mach/iomap.h>
#include "fuse.h" #include "fuse.h"
#include "apbio.h"
#define FUSE_UID_LOW 0x108 #define FUSE_UID_LOW 0x108
#define FUSE_UID_HIGH 0x10c #define FUSE_UID_HIGH 0x10c
#define FUSE_SKU_INFO 0x110 #define FUSE_SKU_INFO 0x110
#define FUSE_SPARE_BIT 0x200 #define FUSE_SPARE_BIT 0x200
static inline u32 fuse_readl(unsigned long offset) static inline u32 tegra_fuse_readl(unsigned long offset)
{ {
return readl(IO_TO_VIRT(TEGRA_FUSE_BASE + offset)); return tegra_apb_readl(TEGRA_FUSE_BASE + offset);
}
static inline void fuse_writel(u32 value, unsigned long offset)
{
writel(value, IO_TO_VIRT(TEGRA_FUSE_BASE + offset));
} }
void tegra_init_fuse(void) void tegra_init_fuse(void)
@@ -54,15 +50,15 @@ unsigned long long tegra_chip_uid(void)
{ {
unsigned long long lo, hi; unsigned long long lo, hi;
lo = fuse_readl(FUSE_UID_LOW); lo = tegra_fuse_readl(FUSE_UID_LOW);
hi = fuse_readl(FUSE_UID_HIGH); hi = tegra_fuse_readl(FUSE_UID_HIGH);
return (hi << 32ull) | lo; return (hi << 32ull) | lo;
} }
int tegra_sku_id(void) int tegra_sku_id(void)
{ {
int sku_id; int sku_id;
u32 reg = fuse_readl(FUSE_SKU_INFO); u32 reg = tegra_fuse_readl(FUSE_SKU_INFO);
sku_id = reg & 0xFF; sku_id = reg & 0xFF;
return sku_id; return sku_id;
} }
@@ -70,7 +66,7 @@ int tegra_sku_id(void)
int tegra_cpu_process_id(void) int tegra_cpu_process_id(void)
{ {
int cpu_process_id; int cpu_process_id;
u32 reg = fuse_readl(FUSE_SPARE_BIT); u32 reg = tegra_fuse_readl(FUSE_SPARE_BIT);
cpu_process_id = (reg >> 6) & 3; cpu_process_id = (reg >> 6) & 3;
return cpu_process_id; return cpu_process_id;
} }
@@ -78,7 +74,7 @@ int tegra_cpu_process_id(void)
int tegra_core_process_id(void) int tegra_core_process_id(void)
{ {
int core_process_id; int core_process_id;
u32 reg = fuse_readl(FUSE_SPARE_BIT); u32 reg = tegra_fuse_readl(FUSE_SPARE_BIT);
core_process_id = (reg >> 12) & 3; core_process_id = (reg >> 12) & 3;
return core_process_id; return core_process_id;
} }