diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0012-bcma-move-parallel-flash-into-a-union.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.0/0012-bcma-move-parallel-flash-into-a-union.patch | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0012-bcma-move-parallel-flash-into-a-union.patch b/target/linux/brcm47xx/patches-3.0/0012-bcma-move-parallel-flash-into-a-union.patch new file mode 100644 index 000000000..15629aca2 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.0/0012-bcma-move-parallel-flash-into-a-union.patch @@ -0,0 +1,166 @@ +From a1d9c96a6c9b37b26dc1149706f3061b57a62b50 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> +Date: Sun, 17 Jul 2011 14:51:47 +0200 +Subject: [PATCH 12/22] bcma: move parallel flash into a union + + +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + arch/mips/bcm47xx/nvram.c | 7 ++- + drivers/bcma/driver_mips.c | 9 ++-- + include/linux/bcma/bcma_driver_chipcommon.h | 75 ++++++++++++++++++++++++++- + 3 files changed, 84 insertions(+), 7 deletions(-) + +--- a/arch/mips/bcm47xx/nvram.c ++++ b/arch/mips/bcm47xx/nvram.c +@@ -50,8 +50,11 @@ static void early_nvram_init(void) + #ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: + bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc; +- base = bcma_cc->pflash.window; +- lim = bcma_cc->pflash.window_size; ++ if (bcma_cc->flash_type != BCMA_PFLASH) ++ return; ++ ++ base = bcma_cc->flash.pflash.window; ++ lim = bcma_cc->flash.pflash.window_size; + break; + #endif + } +--- a/drivers/bcma/driver_mips.c ++++ b/drivers/bcma/driver_mips.c +@@ -189,14 +189,15 @@ static void bcma_core_mips_flash_detect( + break; + case BCMA_CC_FLASHT_PARA: + pr_info("found parallel flash.\n"); +- bus->drv_cc.pflash.window = 0x1c000000; +- bus->drv_cc.pflash.window_size = 0x02000000; ++ bus->drv_cc.flash_type = BCMA_PFLASH; ++ bus->drv_cc.flash.pflash.window = 0x1c000000; ++ bus->drv_cc.flash.pflash.window_size = 0x02000000; + + if ((bcma_read32(bus->drv_cc.core, BCMA_CC_FLASH_CFG) & + BCMA_CC_FLASH_CFG_DS) == 0) +- bus->drv_cc.pflash.buswidth = 1; ++ bus->drv_cc.flash.pflash.buswidth = 1; + else +- bus->drv_cc.pflash.buswidth = 2; ++ bus->drv_cc.flash.pflash.buswidth = 2; + break; + default: + pr_err("flash not supported.\n"); +--- a/include/linux/bcma/bcma_driver_chipcommon.h ++++ b/include/linux/bcma/bcma_driver_chipcommon.h +@@ -108,10 +108,68 @@ + #define BCMA_CC_JCTL_EXT_EN 2 /* Enable external targets */ + #define BCMA_CC_JCTL_EN 1 /* Enable Jtag master */ + #define BCMA_CC_FLASHCTL 0x0040 ++ ++/* Start/busy bit in flashcontrol */ ++#define BCMA_CC_FLASHCTL_OPCODE 0x000000ff ++#define BCMA_CC_FLASHCTL_ACTION 0x00000700 ++#define BCMA_CC_FLASHCTL_CS_ACTIVE 0x00001000 /* Chip Select Active, rev >= 20 */ + #define BCMA_CC_FLASHCTL_START 0x80000000 + #define BCMA_CC_FLASHCTL_BUSY BCMA_CC_FLASHCTL_START ++ ++/* flashcontrol action+opcodes for ST flashes */ ++#define BCMA_CC_FLASHCTL_ST_WREN 0x0006 /* Write Enable */ ++#define BCMA_CC_FLASHCTL_ST_WRDIS 0x0004 /* Write Disable */ ++#define BCMA_CC_FLASHCTL_ST_RDSR 0x0105 /* Read Status Register */ ++#define BCMA_CC_FLASHCTL_ST_WRSR 0x0101 /* Write Status Register */ ++#define BCMA_CC_FLASHCTL_ST_READ 0x0303 /* Read Data Bytes */ ++#define BCMA_CC_FLASHCTL_ST_PP 0x0302 /* Page Program */ ++#define BCMA_CC_FLASHCTL_ST_SE 0x02d8 /* Sector Erase */ ++#define BCMA_CC_FLASHCTL_ST_BE 0x00c7 /* Bulk Erase */ ++#define BCMA_CC_FLASHCTL_ST_DP 0x00b9 /* Deep Power-down */ ++#define BCMA_CC_FLASHCTL_ST_RES 0x03ab /* Read Electronic Signature */ ++#define BCMA_CC_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */ ++#define BCMA_CC_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */ ++ ++ ++/* flashcontrol action+opcodes for Atmel flashes */ ++#define BCMA_CC_FLASHCTL_AT_READ 0x07e8 ++#define BCMA_CC_FLASHCTL_AT_PAGE_READ 0x07d2 ++#define BCMA_CC_FLASHCTL_AT_BUF1_READ ++#define BCMA_CC_FLASHCTL_AT_BUF2_READ ++#define BCMA_CC_FLASHCTL_AT_STATUS 0x01d7 ++#define BCMA_CC_FLASHCTL_AT_BUF1_WRITE 0x0384 ++#define BCMA_CC_FLASHCTL_AT_BUF2_WRITE 0x0387 ++#define BCMA_CC_FLASHCTL_AT_BUF1_ERASE_PROGRAM 0x0283 ++#define BCMA_CC_FLASHCTL_AT_BUF2_ERASE_PROGRAM 0x0286 ++#define BCMA_CC_FLASHCTL_AT_BUF1_PROGRAM 0x0288 ++#define BCMA_CC_FLASHCTL_AT_BUF2_PROGRAM 0x0289 ++#define BCMA_CC_FLASHCTL_AT_PAGE_ERASE 0x0281 ++#define BCMA_CC_FLASHCTL_AT_BLOCK_ERASE 0x0250 ++#define BCMA_CC_FLASHCTL_AT_BUF1_WRITE_ERASE_PROGRAM 0x0382 ++#define BCMA_CC_FLASHCTL_AT_BUF2_WRITE_ERASE_PROGRAM 0x0385 ++#define BCMA_CC_FLASHCTL_AT_BUF1_LOAD 0x0253 ++#define BCMA_CC_FLASHCTL_AT_BUF2_LOAD 0x0255 ++#define BCMA_CC_FLASHCTL_AT_BUF1_COMPARE 0x0260 ++#define BCMA_CC_FLASHCTL_AT_BUF2_COMPARE 0x0261 ++#define BCMA_CC_FLASHCTL_AT_BUF1_REPROGRAM 0x0258 ++#define BCMA_CC_FLASHCTL_AT_BUF2_REPROGRAM 0x0259 ++ + #define BCMA_CC_FLASHADDR 0x0044 + #define BCMA_CC_FLASHDATA 0x0048 ++ ++/* Status register bits for ST flashes */ ++#define BCMA_CC_FLASHDATA_ST_WIP 0x01 /* Write In Progress */ ++#define BCMA_CC_FLASHDATA_ST_WEL 0x02 /* Write Enable Latch */ ++#define BCMA_CC_FLASHDATA_ST_BP_MASK 0x1c /* Block Protect */ ++#define BCMA_CC_FLASHDATA_ST_BP_SHIFT 2 ++#define BCMA_CC_FLASHDATA_ST_SRWD 0x80 /* Status Register Write Disable */ ++ ++/* Status register bits for Atmel flashes */ ++#define BCMA_CC_FLASHDATA_AT_READY 0x80 ++#define BCMA_CC_FLASHDATA_AT_MISMATCH 0x40 ++#define BCMA_CC_FLASHDATA_AT_ID_MASK 0x38 ++#define BCMA_CC_FLASHDATA_AT_ID_SHIFT 3 ++ + #define BCMA_CC_BCAST_ADDR 0x0050 + #define BCMA_CC_BCAST_DATA 0x0054 + #define BCMA_CC_GPIOPULLUP 0x0058 /* Rev >= 20 only */ +@@ -283,6 +341,12 @@ + #define BCMA_CC_PPL_PCHI_OFF 5 + #define BCMA_CC_PPL_PCHI_MASK 0x0000003f + ++#define BCMA_FLASH2 0x1c000000 /* Flash Region 2 (region 1 shadowed here) */ ++#define BCMA_FLASH2_SZ 0x02000000 /* Size of Flash Region 2 */ ++#define BCMA_FLASH1 0x1fc00000 /* MIPS Flash Region 1 */ ++#define BCMA_FLASH1_SZ 0x00400000 /* MIPS Size of Flash Region 1 */ ++ ++ + /* Data for the PMU, if available. + * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU) + */ +@@ -292,12 +356,20 @@ struct bcma_chipcommon_pmu { + }; + + #ifdef CONFIG_BCMA_DRIVER_MIPS ++enum bcma_flash_type { ++ BCMA_PFLASH, ++}; ++ + struct bcma_pflash { + u8 buswidth; + u32 window; + u32 window_size; + }; + ++union bcma_flash { ++ struct bcma_pflash pflash; ++}; ++ + struct bcma_serial_port { + void *regs; + unsigned long clockspeed; +@@ -317,7 +389,8 @@ struct bcma_drv_cc { + u16 fast_pwrup_delay; + struct bcma_chipcommon_pmu pmu; + #ifdef CONFIG_BCMA_DRIVER_MIPS +- struct bcma_pflash pflash; ++ enum bcma_flash_type flash_type; ++ union bcma_flash flash; + + int nr_serial_ports; + struct bcma_serial_port serial_ports[4]; |