diff options
Diffstat (limited to 'target')
5 files changed, 48 insertions, 14 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c index ea7ae143b..a13c92812 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c @@ -17,7 +17,6 @@ #include <asm/mach-ar71xx/ar71xx.h> static DEFINE_MUTEX(ar71xx_flash_mutex); -static int ar71xx_flash_lock_enabled; void __iomem *ar71xx_ddr_base; EXPORT_SYMBOL_GPL(ar71xx_ddr_base); @@ -102,21 +101,14 @@ void ar71xx_ddr_flush(u32 reg) } EXPORT_SYMBOL_GPL(ar71xx_ddr_flush); -void __init ar71xx_flash_lock_enable(void) -{ - ar71xx_flash_lock_enabled = 1; -} - void ar71xx_flash_acquire(void) { - if (ar71xx_flash_lock_enabled) - mutex_lock(&ar71xx_flash_mutex); + mutex_lock(&ar71xx_flash_mutex); } EXPORT_SYMBOL_GPL(ar71xx_flash_acquire); void ar71xx_flash_release(void) { - if (ar71xx_flash_lock_enabled) - mutex_unlock(&ar71xx_flash_mutex); + mutex_unlock(&ar71xx_flash_mutex); } EXPORT_SYMBOL_GPL(ar71xx_flash_release); diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c index c88f68a41..8564b01a6 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c @@ -221,7 +221,7 @@ static void __init ap83_generic_setup(void) static void __init ap83_040_setup(void) { - ar71xx_flash_lock_enable(); + ap83_flash_data.is_shared=1; ap83_generic_setup(); platform_device_register(&ap83_040_spi_device); } diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h index 19a546e56..51afcecb5 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h @@ -422,7 +422,6 @@ void ar71xx_device_start(u32 mask); #define SPI_IOC_CS2 SPI_IOC_CS(2) #define SPI_IOC_CS_ALL (SPI_IOC_CS0 | SPI_IOC_CS1 | SPI_IOC_CS2) -void ar71xx_flash_lock_enable(void) __init; void ar71xx_flash_acquire(void); void ar71xx_flash_release(void); diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h index b008abd8d..5644fc956 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h @@ -55,6 +55,7 @@ struct ar71xx_spi_platform_data { struct ar91xx_flash_platform_data { unsigned int width; + u8 is_shared:1; #ifdef CONFIG_MTD_PARTITIONS unsigned int nr_parts; struct mtd_partition *parts; diff --git a/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c b/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c index e83a1477f..7ee831c12 100644 --- a/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c +++ b/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c @@ -60,6 +60,41 @@ static void ar91xx_flash_write(struct map_info *map, map_word d, mb(); } +static map_word ar91xx_flash_read_lock(struct map_info *map, unsigned long ofs) +{ + map_word ret; + + ar71xx_flash_acquire(); + ret = ar91xx_flash_read(map, ofs); + ar71xx_flash_release(); + + return ret; +} + +static void ar91xx_flash_write_lock(struct map_info *map, map_word d, + unsigned long ofs) +{ + ar71xx_flash_acquire(); + ar91xx_flash_write(map, d, ofs); + ar71xx_flash_release(); +} + +static void ar91xx_flash_copy_from_lock(struct map_info *map, void *to, + unsigned long from, ssize_t len) +{ + ar71xx_flash_acquire(); + inline_map_copy_from(map, to, from, len); + ar71xx_flash_release(); +} + +static void ar91xx_flash_copy_to_lock(struct map_info *map, unsigned long to, + const void *from, ssize_t len) +{ + ar71xx_flash_acquire(); + inline_map_copy_to(map, to, from, len); + ar71xx_flash_release(); +} + static int ar91xx_flash_remove(struct platform_device *pdev) { struct ar91xx_flash_platform_data *pdata; @@ -152,8 +187,15 @@ static int ar91xx_flash_probe(struct platform_device *pdev) } simple_map_init(&info->map); - info->map.read = ar91xx_flash_read; - info->map.write = ar91xx_flash_write; + if (pdata->is_shared) { + info->map.read = ar91xx_flash_read_lock; + info->map.write = ar91xx_flash_write_lock; + info->map.copy_from = ar91xx_flash_copy_from_lock; + info->map.copy_to = ar91xx_flash_copy_to_lock; + } else { + info->map.read = ar91xx_flash_read; + info->map.write = ar91xx_flash_write; + } probe_type = rom_probe_types; for (; info->mtd == NULL && *probe_type != NULL; probe_type++) |