diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch b/target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch new file mode 100644 index 000000000..12055bff0 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch @@ -0,0 +1,151 @@ +--- a/arch/mips/bcm47xx/nvram.c ++++ b/arch/mips/bcm47xx/nvram.c +@@ -27,7 +27,7 @@ static char nvram_buf[NVRAM_SPACE]; + static void early_nvram_init(void) + { + #ifdef CONFIG_BCM47XX_SSB +- struct ssb_mipscore *mcore_ssb; ++ struct ssb_chipcommon *ssb_cc; + #endif + #ifdef CONFIG_BCM47XX_BCMA + struct bcma_drv_cc *bcma_cc; +@@ -42,9 +42,9 @@ static void early_nvram_init(void) + switch (bcm47xx_bus_type) { + #ifdef CONFIG_BCM47XX_SSB + case BCM47XX_BUS_TYPE_SSB: +- mcore_ssb = &bcm47xx_bus.ssb.mipscore; +- base = mcore_ssb->flash_window; +- lim = mcore_ssb->flash_window_size; ++ ssb_cc = &bcm47xx_bus.ssb.chipco; ++ base = ssb_cc->pflash.window; ++ lim = ssb_cc->pflash.window_size; + break; + #endif + #ifdef CONFIG_BCM47XX_BCMA +--- a/arch/mips/bcm47xx/wgt634u.c ++++ b/arch/mips/bcm47xx/wgt634u.c +@@ -142,24 +142,24 @@ static int __init wgt634u_init(void) + if (et0mac[0] == 0x00 && + ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) || + (et0mac[1] == 0x0f && et0mac[2] == 0xb5))) { +- struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore; ++ struct ssb_chipcommon *ccore = &bcm47xx_bus.ssb.chipco; + + printk(KERN_INFO "WGT634U machine detected.\n"); + + if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET), + gpio_interrupt, IRQF_SHARED, +- "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) { ++ "WGT634U GPIO", ccore)) { + gpio_direction_input(WGT634U_GPIO_RESET); + gpio_intmask(WGT634U_GPIO_RESET, 1); +- ssb_chipco_irq_mask(&bcm47xx_bus.ssb.chipco, ++ ssb_chipco_irq_mask(ccore, + SSB_CHIPCO_IRQ_GPIO, + SSB_CHIPCO_IRQ_GPIO); + } + +- wgt634u_flash_data.width = mcore->flash_buswidth; +- wgt634u_flash_resource.start = mcore->flash_window; +- wgt634u_flash_resource.end = mcore->flash_window +- + mcore->flash_window_size ++ wgt634u_flash_data.width = ccore->pflash.buswidth; ++ wgt634u_flash_resource.start = ccore->pflash.window; ++ wgt634u_flash_resource.end = ccore->pflash.window ++ + ccore->pflash.window_size + - 1; + return platform_add_devices(wgt634u_devices, + ARRAY_SIZE(wgt634u_devices)); +--- a/drivers/ssb/driver_mipscore.c ++++ b/drivers/ssb/driver_mipscore.c +@@ -190,16 +190,34 @@ static void ssb_mips_flash_detect(struct + { + struct ssb_bus *bus = mcore->dev->bus; + +- mcore->flash_buswidth = 2; +- if (bus->chipco.dev) { +- mcore->flash_window = 0x1c000000; +- mcore->flash_window_size = 0x02000000; ++ /* When there is no chipcommon on the bus there is 4MB flash */ ++ if (!bus->chipco.dev) { ++ pr_info("found parallel flash.\n"); ++ bus->chipco.flash_type = SSB_PFLASH; ++ bus->chipco.pflash.window = SSB_FLASH1; ++ bus->chipco.pflash.window_size = SSB_FLASH1_SZ; ++ bus->chipco.pflash.buswidth = 2; ++ return; ++ } ++ ++ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) { ++ case SSB_CHIPCO_FLASHT_STSER: ++ case SSB_CHIPCO_FLASHT_ATSER: ++ pr_info("serial flash not supported.\n"); ++ break; ++ case SSB_CHIPCO_FLASHT_PARA: ++ pr_info("found parallel flash.\n"); ++ bus->chipco.flash_type = SSB_PFLASH; ++ bus->chipco.pflash.window = SSB_FLASH2; ++ bus->chipco.pflash.window_size = SSB_FLASH2_SZ; + if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG) +- & SSB_CHIPCO_CFG_DS16) == 0) +- mcore->flash_buswidth = 1; +- } else { +- mcore->flash_window = 0x1fc00000; +- mcore->flash_window_size = 0x00400000; ++ & SSB_CHIPCO_CFG_DS16) == 0) ++ bus->chipco.pflash.buswidth = 1; ++ else ++ bus->chipco.pflash.buswidth = 2; ++ break; ++ default: ++ pr_err("flash not supported.\n"); + } + } + +--- a/include/linux/ssb/ssb_driver_chipcommon.h ++++ b/include/linux/ssb/ssb_driver_chipcommon.h +@@ -582,6 +582,18 @@ struct ssb_chipcommon_pmu { + u32 crystalfreq; /* The active crystal frequency (in kHz) */ + }; + ++#ifdef CONFIG_SSB_DRIVER_MIPS ++enum ssb_flash_type { ++ SSB_PFLASH, ++}; ++ ++struct ssb_pflash { ++ u8 buswidth; ++ u32 window; ++ u32 window_size; ++}; ++#endif /* CONFIG_SSB_DRIVER_MIPS */ ++ + struct ssb_chipcommon { + struct ssb_device *dev; + u32 capabilities; +@@ -589,6 +601,12 @@ struct ssb_chipcommon { + /* Fast Powerup Delay constant */ + u16 fast_pwrup_delay; + struct ssb_chipcommon_pmu pmu; ++#ifdef CONFIG_SSB_DRIVER_MIPS ++ enum ssb_flash_type flash_type; ++ union { ++ struct ssb_pflash pflash; ++ }; ++#endif /* CONFIG_SSB_DRIVER_MIPS */ + }; + + static inline bool ssb_chipco_available(struct ssb_chipcommon *cc) +--- a/include/linux/ssb/ssb_driver_mips.h ++++ b/include/linux/ssb/ssb_driver_mips.h +@@ -19,10 +19,6 @@ struct ssb_mipscore { + + int nr_serial_ports; + struct ssb_serial_port serial_ports[4]; +- +- u8 flash_buswidth; +- u32 flash_window; +- u32 flash_window_size; + }; + + extern void ssb_mipscore_init(struct ssb_mipscore *mcore); |