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-rw-r--r--target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch134
1 files changed, 134 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 0000000000..400de8988c
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch
@@ -0,0 +1,134 @@
+--- 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
+@@ -156,10 +156,10 @@ static int __init wgt634u_init(void)
+ 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 = mcore->pflash.buswidth;
++ wgt634u_flash_resource.start = mcore->pflash.window;
++ wgt634u_flash_resource.end = mcore->pflash.window
++ + mcore->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);