diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.3/434-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.3/434-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.3/434-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch b/target/linux/brcm63xx/patches-3.3/434-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch new file mode 100644 index 000000000..703509820 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.3/434-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch @@ -0,0 +1,122 @@ +From f888824d352df894ab721a5ca067b0313500efe7 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jonas.gorski@gmail.com> +Date: Thu, 3 May 2012 12:17:54 +0200 +Subject: [PATCH 38/59] MIPS: BCM63XX: store the flash type in global variable + +--- + arch/mips/bcm63xx/dev-flash.c | 36 +++++++++++++------ + .../include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 2 + + 2 files changed, 26 insertions(+), 12 deletions(-) + +--- a/arch/mips/bcm63xx/dev-flash.c ++++ b/arch/mips/bcm63xx/dev-flash.c +@@ -25,6 +25,8 @@ + #include <bcm63xx_regs.h> + #include <bcm63xx_io.h> + ++int bcm63xx_attached_flash = -1; ++ + static struct mtd_partition mtd_partitions[] = { + { + .name = "cfe", +@@ -86,20 +88,23 @@ static int __init bcm63xx_detect_flash_t + bcm63xx_spi_flash_info[0].max_speed_hz = 16666667; + + if (val & STRAPBUS_6328_BOOT_SEL_SERIAL) +- return BCM63XX_FLASH_TYPE_SERIAL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL; + else +- return BCM63XX_FLASH_TYPE_NAND; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND; ++ break; + case BCM6338_CPU_ID: + case BCM6345_CPU_ID: + case BCM6348_CPU_ID: + /* no way to auto detect so assume parallel */ +- return BCM63XX_FLASH_TYPE_PARALLEL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL; ++ break; + case BCM6358_CPU_ID: + val = bcm_gpio_readl(GPIO_STRAPBUS_REG); + if (val & STRAPBUS_6358_BOOT_SEL_PARALLEL) +- return BCM63XX_FLASH_TYPE_PARALLEL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL; + else +- return BCM63XX_FLASH_TYPE_SERIAL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL; ++ break; + case BCM6362_CPU_ID: + val = bcm_misc_readl(MISC_STRAPBUS_6362_REG); + if (val & STRAPBUS_6362_HSSPI_CLK_FAST) +@@ -108,9 +113,10 @@ static int __init bcm63xx_detect_flash_t + bcm63xx_spi_flash_info[0].max_speed_hz = 20000000; + + if (val & STRAPBUS_6362_BOOT_SEL_SERIAL) +- return BCM63XX_FLASH_TYPE_SERIAL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL; + else +- return BCM63XX_FLASH_TYPE_NAND; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND; ++ break; + case BCM6368_CPU_ID: + val = bcm_gpio_readl(GPIO_STRAPBUS_REG); + if (val & STRAPBUS_6368_SPI_CLK_FAST) +@@ -118,25 +124,32 @@ static int __init bcm63xx_detect_flash_t + + switch (val & STRAPBUS_6368_BOOT_SEL_MASK) { + case STRAPBUS_6368_BOOT_SEL_NAND: +- return BCM63XX_FLASH_TYPE_NAND; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND; ++ break; + case STRAPBUS_6368_BOOT_SEL_SERIAL: +- return BCM63XX_FLASH_TYPE_SERIAL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL; ++ break; + case STRAPBUS_6368_BOOT_SEL_PARALLEL: +- return BCM63XX_FLASH_TYPE_PARALLEL; ++ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL; ++ break; ++ default: ++ return -EINVAL; + } + default: + return -EINVAL; + } ++ ++ return 0; + } + + int __init bcm63xx_flash_register(void) + { +- int flash_type; + u32 val; + +- flash_type = bcm63xx_detect_flash_type(); + +- switch (flash_type) { ++ bcm63xx_detect_flash_type(); ++ ++ switch (bcm63xx_attached_flash) { + case BCM63XX_FLASH_TYPE_PARALLEL: + /* read base address of boot chip select (0) */ + val = bcm_mpi_readl(MPI_CSBASE_REG(0)); +@@ -157,7 +170,7 @@ int __init bcm63xx_flash_register(void) + return -ENODEV; + default: + pr_err("flash detection failed for BCM%x: %d\n", +- bcm63xx_get_cpu_id(), flash_type); ++ bcm63xx_get_cpu_id(), bcm63xx_attached_flash); + return -ENODEV; + } + } +--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h +@@ -7,6 +7,8 @@ enum { + BCM63XX_FLASH_TYPE_NAND, + }; + ++extern int bcm63xx_attached_flash; ++ + int __init bcm63xx_flash_register(void); + + #endif /* __BCM63XX_FLASH_H */ |