diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch | 174 |
1 files changed, 114 insertions, 60 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch b/target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch index 62cd10290e..ddd13aef57 100644 --- a/target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch +++ b/target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch @@ -1,7 +1,7 @@ -From 0a1a5fd8aab864e7b531ab88fd317ff7278d884d Mon Sep 17 00:00:00 2001 +From 5961a1401605cd1941d5260a03b1dc2e8ae80619 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens <hauke@hauke-m.de> Date: Mon, 6 Jun 2011 00:07:32 +0200 -Subject: [PATCH 05/14] bcma: add mips driver +Subject: [PATCH 05/22] bcma: add mips driver This adds a mips driver to bcma. This is only found on embedded devices. For now the driver just initializes the irqs used on this @@ -9,51 +9,49 @@ system. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- - drivers/bcma/Kconfig | 11 ++- - drivers/bcma/Makefile | 1 + - drivers/bcma/driver_mips.c | 234 +++++++++++++++++++++++++++++++++ - drivers/bcma/main.c | 19 +++ - include/linux/bcma/bcma.h | 2 + - include/linux/bcma/bcma_driver_mips.h | 49 +++++++ - 6 files changed, 315 insertions(+), 1 deletions(-) + drivers/bcma/Kconfig | 9 + + drivers/bcma/Makefile | 1 + + drivers/bcma/driver_mips.c | 243 +++++++++++++++++++++++++++ + drivers/bcma/main.c | 15 ++ + include/linux/bcma/bcma.h | 3 + + include/linux/bcma/bcma_driver_chipcommon.h | 13 ++ + include/linux/bcma/bcma_driver_mips.h | 49 ++++++ + 7 files changed, 333 insertions(+), 0 deletions(-) create mode 100644 drivers/bcma/driver_mips.c create mode 100644 include/linux/bcma/bcma_driver_mips.h --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig -@@ -29,9 +29,18 @@ config BCMA_HOST_PCI +@@ -36,7 +36,16 @@ config BCMA_DRIVER_PCI_HOSTMODE config BCMA_HOST_SOC bool -- depends on BCMA && MIPS + depends on BCMA_DRIVER_MIPS - default n - ++ +config BCMA_DRIVER_MIPS + bool "BCMA Broadcom MIPS core driver" -+ depends on BCMA && MIPS + depends on BCMA && MIPS + help + Driver for the Broadcom MIPS core attached to Broadcom specific + Advanced Microcontroller Bus. + + If unsure, say N -+ + config BCMA_DEBUG bool "BCMA debugging" - depends on BCMA --- a/drivers/bcma/Makefile +++ b/drivers/bcma/Makefile -@@ -1,6 +1,7 @@ - bcma-y += main.o scan.o core.o sprom.o +@@ -2,6 +2,7 @@ bcma-y += main.o scan.o core.o sprom bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o bcma-y += driver_pci.o + bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o +bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o bcma-$(CONFIG_BCMA_HOST_SOC) += host_soc.o obj-$(CONFIG_BCMA) += bcma.o --- /dev/null +++ b/drivers/bcma/driver_mips.c -@@ -0,0 +1,234 @@ +@@ -0,0 +1,243 @@ +/* + * Broadcom specific AMBA + * Broadcom MIPS32 74K core driver @@ -75,13 +73,22 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +#include <linux/serial_reg.h> +#include <linux/time.h> + -+/* The 47162a0 hangs when reading its registers */ ++/* The 47162a0 hangs when reading MIPS DMP registers registers */ +static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev) +{ + return dev->bus->chipinfo.id == 47162 && dev->bus->chipinfo.rev == 0 && + dev->id.id == BCMA_CORE_MIPS_74K; +} + ++/* The 5357b0 hangs when reading USB20H DMP registers */ ++static inline bool bcma_core_mips_bcm5357b0_quirk(struct bcma_device *dev) ++{ ++ return (dev->bus->chipinfo.id == 0x5357 || ++ dev->bus->chipinfo.id == 0x4749) && ++ dev->bus->chipinfo.pkg == 11 && ++ dev->id.id == BCMA_CORE_USB20_HOST; ++} ++ +static inline u32 mips_read32(struct bcma_drv_mips *mcore, + u16 offset) +{ @@ -117,15 +124,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> + + if (bcma_core_mips_bcm47162a0_quirk(dev)) + return dev->core_index; ++ if (bcma_core_mips_bcm5357b0_quirk(dev)) ++ return dev->core_index; + flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30); + + return flag & 0x1F; +} + -+ +/* Get the MIPS IRQ assignment for a specified device. + * If unassigned, 0 is returned. -+ * If disabled, 5 is returned. + */ +unsigned int bcma_core_mips_irq(struct bcma_device *dev) +{ @@ -217,24 +224,24 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +{ + struct bcma_bus *bus = mcore->core->bus; + -+ mcore->flash_buswidth = 2; -+ if (bus->drv_cc.core) { -+ mcore->flash_window = 0x1c000000; -+ mcore->flash_window_size = 0x02000000; -+ switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) { -+ case BCMA_CC_FLASHT_STSER: -+ case BCMA_CC_FLASHT_ATSER: -+ pr_err("Serial flash not supported.\n"); -+ break; -+ case BCMA_CC_FLASHT_PARA: -+ if ((bcma_read32(bus->drv_cc.core, BCMA_CC_FLASH_CFG) & -+ BCMA_CC_OTPS) == 0) -+ mcore->flash_buswidth = 1; -+ break; -+ } -+ } else { -+ mcore->flash_window = 0x1fc00000; -+ mcore->flash_window_size = 0x00400000; ++ switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) { ++ case BCMA_CC_FLASHT_STSER: ++ case BCMA_CC_FLASHT_ATSER: ++ pr_err("Serial flash not supported.\n"); ++ 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; ++ ++ if ((bcma_read32(bus->drv_cc.core, BCMA_CC_FLASH_CFG) & ++ BCMA_CC_FLASH_CFG_DS) == 0) ++ bus->drv_cc.pflash.buswidth = 1; ++ else ++ bus->drv_cc.pflash.buswidth = 2; ++ break; ++ default: ++ pr_err("flash not supported.\n"); + } +} + @@ -290,7 +297,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +} --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c -@@ -80,6 +80,7 @@ static int bcma_register_cores(struct bc +@@ -84,6 +84,7 @@ static int bcma_register_cores(struct bc case BCMA_CORE_CHIPCOMMON: case BCMA_CORE_PCI: case BCMA_CORE_PCIE: @@ -298,34 +305,30 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> continue; } -@@ -141,6 +142,15 @@ int bcma_bus_register(struct bcma_bus *b +@@ -144,6 +145,13 @@ int bcma_bus_register(struct bcma_bus *b bcma_core_chipcommon_init(&bus->drv_cc); } -+#ifdef CONFIG_BCMA_DRIVER_MIPS + /* Init MIPS core */ + core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); + if (core) { + bus->drv_mips.core = core; + bcma_core_mips_init(&bus->drv_mips); + } -+#endif + /* Init PCIE core */ core = bcma_find_core(bus, BCMA_CORE_PCIE); if (core) { -@@ -208,6 +218,15 @@ int __init bcma_bus_early_register(struc +@@ -214,6 +222,13 @@ int __init bcma_bus_early_register(struc bcma_core_chipcommon_init(&bus->drv_cc); } -+#ifdef CONFIG_BCMA_DRIVER_MIPS + /* Init MIPS core */ + core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); + if (core) { + bus->drv_mips.core = core; + bcma_core_mips_init(&bus->drv_mips); + } -+#endif + pr_info("Early bus registered\n"); @@ -340,7 +343,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> #include <linux/ssb/ssb.h> /* SPROM sharing */ #include "bcma_regs.h" -@@ -193,6 +194,7 @@ struct bcma_bus { +@@ -130,6 +131,7 @@ struct bcma_device { + + struct device dev; + struct device *dma_dev; ++ + unsigned int irq; + bool dev_registered; + +@@ -197,6 +199,7 @@ struct bcma_bus { struct bcma_drv_cc drv_cc; struct bcma_drv_pci drv_pci; @@ -348,6 +359,49 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> /* We decided to share SPROM struct with SSB as long as we do not need * any hacks for BCMA. This simplifies drivers code. */ +--- a/include/linux/bcma/bcma_driver_chipcommon.h ++++ b/include/linux/bcma/bcma_driver_chipcommon.h +@@ -24,6 +24,7 @@ + #define BCMA_CC_FLASHT_NONE 0x00000000 /* No flash */ + #define BCMA_CC_FLASHT_STSER 0x00000100 /* ST serial flash */ + #define BCMA_CC_FLASHT_ATSER 0x00000200 /* Atmel serial flash */ ++#define BCMA_CC_FLASHT_NFLASH 0x00000200 + #define BCMA_CC_FLASHT_PARA 0x00000700 /* Parallel flash */ + #define BCMA_CC_CAP_PLLT 0x00038000 /* PLL Type */ + #define BCMA_PLLTYPE_NONE 0x00000000 +@@ -178,6 +179,7 @@ + #define BCMA_CC_PROG_CFG 0x0120 + #define BCMA_CC_PROG_WAITCNT 0x0124 + #define BCMA_CC_FLASH_CFG 0x0128 ++#define BCMA_CC_FLASH_CFG_DS 0x0010 /* Data size, 0=8bit, 1=16bit */ + #define BCMA_CC_FLASH_WAITCNT 0x012C + /* 0x1E0 is defined as shared BCMA_CLKCTLST */ + #define BCMA_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */ +@@ -247,6 +249,14 @@ struct bcma_chipcommon_pmu { + u32 crystalfreq; /* The active crystal frequency (in kHz) */ + }; + ++#ifdef CONFIG_BCMA_DRIVER_MIPS ++struct bcma_pflash { ++ u8 buswidth; ++ u32 window; ++ u32 window_size; ++}; ++#endif /* CONFIG_BCMA_DRIVER_MIPS */ ++ + struct bcma_drv_cc { + struct bcma_device *core; + u32 status; +@@ -256,6 +266,9 @@ struct bcma_drv_cc { + /* Fast Powerup Delay constant */ + u16 fast_pwrup_delay; + struct bcma_chipcommon_pmu pmu; ++#ifdef CONFIG_BCMA_DRIVER_MIPS ++ struct bcma_pflash pflash; ++#endif /* CONFIG_BCMA_DRIVER_MIPS */ + }; + + /* Register access */ --- /dev/null +++ b/include/linux/bcma/bcma_driver_mips.h @@ -0,0 +1,49 @@ @@ -356,17 +410,17 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> + +#define BCMA_MIPS_IPSFLAG 0x0F08 +/* which sbflags get routed to mips interrupt 1 */ -+#define BCMA_MIPS_IPSFLAG_IRQ1 0x0000003F -+#define BCMA_MIPS_IPSFLAG_IRQ1_SHIFT 0 ++#define BCMA_MIPS_IPSFLAG_IRQ1 0x0000003F ++#define BCMA_MIPS_IPSFLAG_IRQ1_SHIFT 0 +/* which sbflags get routed to mips interrupt 2 */ -+#define BCMA_MIPS_IPSFLAG_IRQ2 0x00003F00 -+#define BCMA_MIPS_IPSFLAG_IRQ2_SHIFT 8 ++#define BCMA_MIPS_IPSFLAG_IRQ2 0x00003F00 ++#define BCMA_MIPS_IPSFLAG_IRQ2_SHIFT 8 +/* which sbflags get routed to mips interrupt 3 */ -+#define BCMA_MIPS_IPSFLAG_IRQ3 0x003F0000 -+#define BCMA_MIPS_IPSFLAG_IRQ3_SHIFT 16 ++#define BCMA_MIPS_IPSFLAG_IRQ3 0x003F0000 ++#define BCMA_MIPS_IPSFLAG_IRQ3_SHIFT 16 +/* which sbflags get routed to mips interrupt 4 */ -+#define BCMA_MIPS_IPSFLAG_IRQ4 0x3F000000 -+#define BCMA_MIPS_IPSFLAG_IRQ4_SHIFT 24 ++#define BCMA_MIPS_IPSFLAG_IRQ4 0x3F000000 ++#define BCMA_MIPS_IPSFLAG_IRQ4_SHIFT 24 + +/* MIPS 74K core registers */ +#define BCMA_MIPS_MIPS74K_CORECTL 0x0000 @@ -389,13 +443,13 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> + struct bcma_device *core; + u8 setup_done:1; + unsigned int assigned_irqs; -+ -+ u8 flash_buswidth; -+ u32 flash_window; -+ u32 flash_window_size; +}; + ++#ifdef CONFIG_BCMA_DRIVER_MIPS +extern void bcma_core_mips_init(struct bcma_drv_mips *mcore); ++#else ++static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { } ++#endif + +extern unsigned int bcma_core_mips_irq(struct bcma_device *dev); + |