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soc/tegra: fuse: Unify Tegra20 and Tegra30 drivers

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Unifying the drivers makes it easier to restrict the legacy probing
paths to 32-bit ARM. This in turn will come in handy as support for
new 64-bit ARM SoCs is added.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2015-04-29 16:54:04 +02:00
parent 297c4f3dcb
commit 7e939de1b2
11 changed files with 418 additions and 375 deletions
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87
drivers/soc/tegra/fuse/fuse.h
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@@ -19,53 +19,82 @@
#ifndef __DRIVERS_MISC_TEGRA_FUSE_H
#define __DRIVERS_MISC_TEGRA_FUSE_H
#define TEGRA_FUSE_BASE 0x7000f800
#define TEGRA_FUSE_SIZE 0x400
#include <linux/dmaengine.h>
#include <linux/types.h>
int tegra_fuse_create_sysfs(struct device *dev, int size,
u32 (*readl)(const unsigned int offset));
struct tegra_fuse;
struct tegra_fuse_info {
u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
unsigned int size;
unsigned int spare;
};
struct tegra_fuse_soc {
void (*init)(struct tegra_fuse *fuse);
void (*speedo_init)(struct tegra_sku_info *info);
int (*probe)(struct tegra_fuse *fuse);
const struct tegra_fuse_info *info;
};
struct tegra_fuse {
struct device *dev;
void __iomem *base;
phys_addr_t phys;
struct clk *clk;
u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
const struct tegra_fuse_soc *soc;
/* APBDMA on Tegra20 */
struct {
struct mutex lock;
struct completion wait;
struct dma_chan *chan;
struct dma_slave_config config;
dma_addr_t phys;
u32 *virt;
} apbdma;
};
bool tegra30_spare_fuse(int bit);
u32 tegra30_fuse_readl(const unsigned int offset);
void tegra30_init_fuse_early(void);
void tegra_init_revision(void);
void tegra_init_apbmisc(void);
bool __init tegra_fuse_read_spare(unsigned int spare);
u32 __init tegra_fuse_read_early(unsigned int offset);
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
void tegra20_init_speedo_data(struct tegra_sku_info *sku_info);
bool tegra20_spare_fuse_early(int spare_bit);
void tegra20_init_fuse_early(void);
u32 tegra20_fuse_early(const unsigned int offset);
#else
static inline void tegra20_init_speedo_data(struct tegra_sku_info *sku_info) {}
static inline bool tegra20_spare_fuse_early(int spare_bit)
{
return false;
}
static inline void tegra20_init_fuse_early(void) {}
static inline u32 tegra20_fuse_early(const unsigned int offset)
{
return 0;
}
#endif
#ifdef CONFIG_ARCH_TEGRA_3x_SOC
void tegra30_init_speedo_data(struct tegra_sku_info *sku_info);
#else
static inline void tegra30_init_speedo_data(struct tegra_sku_info *sku_info) {}
#endif
#ifdef CONFIG_ARCH_TEGRA_114_SOC
void tegra114_init_speedo_data(struct tegra_sku_info *sku_info);
#else
static inline void tegra114_init_speedo_data(struct tegra_sku_info *sku_info) {}
#endif
#ifdef CONFIG_ARCH_TEGRA_124_SOC
#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
void tegra124_init_speedo_data(struct tegra_sku_info *sku_info);
#else
static inline void tegra124_init_speedo_data(struct tegra_sku_info *sku_info) {}
#endif
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
extern const struct tegra_fuse_soc tegra20_fuse_soc;
#endif
#ifdef CONFIG_ARCH_TEGRA_3x_SOC
extern const struct tegra_fuse_soc tegra30_fuse_soc;
#endif
#ifdef CONFIG_ARCH_TEGRA_114_SOC
extern const struct tegra_fuse_soc tegra114_fuse_soc;
#endif
#if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
extern const struct tegra_fuse_soc tegra124_fuse_soc;
#endif
#endif