[PATCH] ARM: tegra: fuse: use apbio dma for register access
From: Olof Johansson <hidden>
Date: 2011-10-18 18:20:40
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Use the apbio dma functions for accessing the fuse registers. Signed-off-by: Olof Johansson <redacted> --- This patch depends on "ARM: tegra: use APB DMA for accessing APB devices", I forgot to send them as a 2-patch series. arch/arm/mach-tegra/fuse.c | 20 ++++++++------------ 1 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
index 1fa26d9..daf3f57 100644
--- a/arch/arm/mach-tegra/fuse.c
+++ b/arch/arm/mach-tegra/fuse.c@@ -23,20 +23,16 @@ #include <mach/iomap.h> #include "fuse.h" +#include "apbio.h" #define FUSE_UID_LOW 0x108 #define FUSE_UID_HIGH 0x10c #define FUSE_SKU_INFO 0x110 #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)); -} - -static inline void fuse_writel(u32 value, unsigned long offset) -{ - writel(value, IO_TO_VIRT(TEGRA_FUSE_BASE + offset)); + return tegra_apb_readl(TEGRA_FUSE_BASE + offset); } void tegra_init_fuse(void)
@@ -54,15 +50,15 @@ unsigned long long tegra_chip_uid(void) { unsigned long long lo, hi; - lo = fuse_readl(FUSE_UID_LOW); - hi = fuse_readl(FUSE_UID_HIGH); + lo = tegra_fuse_readl(FUSE_UID_LOW); + hi = tegra_fuse_readl(FUSE_UID_HIGH); return (hi << 32ull) | lo; } int tegra_sku_id(void) { int sku_id; - u32 reg = fuse_readl(FUSE_SKU_INFO); + u32 reg = tegra_fuse_readl(FUSE_SKU_INFO); sku_id = reg & 0xFF; return sku_id; }
@@ -70,7 +66,7 @@ int tegra_sku_id(void) int tegra_cpu_process_id(void) { 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; return cpu_process_id; }
@@ -78,7 +74,7 @@ int tegra_cpu_process_id(void) int tegra_core_process_id(void) { 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; return core_process_id; }
--
1.7.4.1