diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.3/023-MIPS-BCM63XX-Add-flash-type-detection.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.3/023-MIPS-BCM63XX-Add-flash-type-detection.patch | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/target/linux/brcm63xx/patches-3.3/023-MIPS-BCM63XX-Add-flash-type-detection.patch b/target/linux/brcm63xx/patches-3.3/023-MIPS-BCM63XX-Add-flash-type-detection.patch deleted file mode 100644 index b0f13abbaf..0000000000 --- a/target/linux/brcm63xx/patches-3.3/023-MIPS-BCM63XX-Add-flash-type-detection.patch +++ /dev/null @@ -1,137 +0,0 @@ -From 0c921d542eb4359791cffd1737bf45184f6ae352 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jonas.gorski@gmail.com> -Date: Tue, 12 Jun 2012 10:23:39 +0200 -Subject: [PATCH 2/8] MIPS: BCM63XX: Add flash type detection - -On BCM6358 and BCM6368 the attached flash type is exposed through a -bootstrapping register. Use it for auto detecting the flash type on -those and default to parallel flash for earlier SoCs. - -Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> -Cc: linux-mips@linux-mips.org -Cc: Maxime Bizon <mbizon@freebox.fr> -Cc: Florian Fainelli <florian@openwrt.org> -Cc: Kevin Cernekee <cernekee@gmail.com> -Patchwork: https://patchwork.linux-mips.org/patch/3954/ -Reviewed-by: Florian Fainelli <florian@openwrt.org> -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- - arch/mips/bcm63xx/dev-flash.c | 60 ++++++++++++++++++-- - .../include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 6 ++ - arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 9 +++ - 3 files changed, 69 insertions(+), 6 deletions(-) - ---- a/arch/mips/bcm63xx/dev-flash.c -+++ b/arch/mips/bcm63xx/dev-flash.c -@@ -7,6 +7,7 @@ - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org> -+ * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com> - */ - - #include <linux/init.h> -@@ -54,16 +55,63 @@ static struct platform_device mtd_dev = - }, - }; - --int __init bcm63xx_flash_register(void) -+static int __init bcm63xx_detect_flash_type(void) - { - u32 val; - -- /* read base address of boot chip select (0) */ -- val = bcm_mpi_readl(MPI_CSBASE_REG(0)); -- val &= MPI_CSBASE_BASE_MASK; -+ switch (bcm63xx_get_cpu_id()) { -+ 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; -+ case BCM6358_CPU_ID: -+ val = bcm_gpio_readl(GPIO_STRAPBUS_REG); -+ if (val & STRAPBUS_6358_BOOT_SEL_PARALLEL) -+ return BCM63XX_FLASH_TYPE_PARALLEL; -+ else -+ return BCM63XX_FLASH_TYPE_SERIAL; -+ case BCM6368_CPU_ID: -+ val = bcm_gpio_readl(GPIO_STRAPBUS_REG); -+ switch (val & STRAPBUS_6368_BOOT_SEL_MASK) { -+ case STRAPBUS_6368_BOOT_SEL_NAND: -+ return BCM63XX_FLASH_TYPE_NAND; -+ case STRAPBUS_6368_BOOT_SEL_SERIAL: -+ return BCM63XX_FLASH_TYPE_SERIAL; -+ case STRAPBUS_6368_BOOT_SEL_PARALLEL: -+ return BCM63XX_FLASH_TYPE_PARALLEL; -+ } -+ default: -+ return -EINVAL; -+ } -+} -+ -+int __init bcm63xx_flash_register(void) -+{ -+ int flash_type; -+ u32 val; - -- mtd_resources[0].start = val; -- mtd_resources[0].end = 0x1FFFFFFF; -+ flash_type = bcm63xx_detect_flash_type(); - -- return platform_device_register(&mtd_dev); -+ switch (flash_type) { -+ case BCM63XX_FLASH_TYPE_PARALLEL: -+ /* read base address of boot chip select (0) */ -+ val = bcm_mpi_readl(MPI_CSBASE_REG(0)); -+ val &= MPI_CSBASE_BASE_MASK; -+ -+ mtd_resources[0].start = val; -+ mtd_resources[0].end = 0x1FFFFFFF; -+ -+ return platform_device_register(&mtd_dev); -+ case BCM63XX_FLASH_TYPE_SERIAL: -+ pr_warn("unsupported serial flash detected\n"); -+ return -ENODEV; -+ case BCM63XX_FLASH_TYPE_NAND: -+ pr_warn("unsupported NAND flash detected\n"); -+ return -ENODEV; -+ default: -+ pr_err("flash detection failed for BCM%x: %d\n", -+ bcm63xx_get_cpu_id(), flash_type); -+ return -ENODEV; -+ } - } ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h -@@ -1,6 +1,12 @@ - #ifndef __BCM63XX_FLASH_H - #define __BCM63XX_FLASH_H - -+enum { -+ BCM63XX_FLASH_TYPE_PARALLEL, -+ BCM63XX_FLASH_TYPE_SERIAL, -+ BCM63XX_FLASH_TYPE_NAND, -+}; -+ - int __init bcm63xx_flash_register(void); - - #endif /* __BCM63XX_FLASH_H */ ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -@@ -507,6 +507,15 @@ - #define GPIO_BASEMODE_6368_MASK 0x7 - /* those bits must be kept as read in gpio basemode register*/ - -+#define GPIO_STRAPBUS_REG 0x40 -+#define STRAPBUS_6358_BOOT_SEL_PARALLEL (1 << 1) -+#define STRAPBUS_6358_BOOT_SEL_SERIAL (0 << 1) -+#define STRAPBUS_6368_BOOT_SEL_MASK 0x3 -+#define STRAPBUS_6368_BOOT_SEL_NAND 0 -+#define STRAPBUS_6368_BOOT_SEL_SERIAL 1 -+#define STRAPBUS_6368_BOOT_SEL_PARALLEL 3 -+ -+ - /************************************************************************* - * _REG relative to RSET_ENET - *************************************************************************/ |