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 | 456 |
1 files changed, 0 insertions, 456 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 deleted file mode 100644 index 31181a488..000000000 --- a/target/linux/brcm47xx/patches-3.0/0005-bcma-add-mips-driver.patch +++ /dev/null @@ -1,456 +0,0 @@ -From 3be3bbe24a1d49283864a1e1ea1d88a2e1700b50 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 05/26] 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 -system. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - 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 -@@ -36,7 +36,16 @@ config BCMA_DRIVER_PCI_HOSTMODE - - config BCMA_HOST_SOC - bool -+ depends on BCMA_DRIVER_MIPS -+ -+config BCMA_DRIVER_MIPS -+ bool "BCMA Broadcom MIPS core driver" - 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" ---- a/drivers/bcma/Makefile -+++ b/drivers/bcma/Makefile -@@ -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 +1,243 @@ -+/* -+ * Broadcom specific AMBA -+ * Broadcom MIPS32 74K core driver -+ * -+ * Copyright 2009, Broadcom Corporation -+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2010, Bernhard Loos <bernhardloos@googlemail.com> -+ * Copyright 2011, Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+ -+#include <linux/bcma/bcma.h> -+ -+#include <linux/serial.h> -+#include <linux/serial_core.h> -+#include <linux/serial_reg.h> -+#include <linux/time.h> -+ -+/* 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) -+{ -+ return bcma_read32(mcore->core, offset); -+} -+ -+static inline void mips_write32(struct bcma_drv_mips *mcore, -+ u16 offset, -+ u32 value) -+{ -+ bcma_write32(mcore->core, offset, value); -+} -+ -+static const u32 ipsflag_irq_mask[] = { -+ 0, -+ BCMA_MIPS_IPSFLAG_IRQ1, -+ BCMA_MIPS_IPSFLAG_IRQ2, -+ BCMA_MIPS_IPSFLAG_IRQ3, -+ BCMA_MIPS_IPSFLAG_IRQ4, -+}; -+ -+static const u32 ipsflag_irq_shift[] = { -+ 0, -+ BCMA_MIPS_IPSFLAG_IRQ1_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ2_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ3_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ4_SHIFT, -+}; -+ -+static u32 bcma_core_mips_irqflag(struct bcma_device *dev) -+{ -+ u32 flag; -+ -+ 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. -+ */ -+unsigned int bcma_core_mips_irq(struct bcma_device *dev) -+{ -+ struct bcma_device *mdev = dev->bus->drv_mips.core; -+ u32 irqflag; -+ unsigned int irq; -+ -+ irqflag = bcma_core_mips_irqflag(dev); -+ -+ for (irq = 1; irq <= 4; irq++) -+ if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) & -+ (1 << irqflag)) -+ return irq; -+ -+ return 0; -+} -+EXPORT_SYMBOL(bcma_core_mips_irq); -+ -+static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq) -+{ -+ unsigned int oldirq = bcma_core_mips_irq(dev); -+ struct bcma_bus *bus = dev->bus; -+ struct bcma_device *mdev = bus->drv_mips.core; -+ u32 irqflag; -+ -+ irqflag = bcma_core_mips_irqflag(dev); -+ BUG_ON(oldirq == 6); -+ -+ dev->irq = irq + 2; -+ -+ /* clear the old irq */ -+ if (oldirq == 0) -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0), -+ bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) & -+ ~(1 << irqflag)); -+ else -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), 0); -+ -+ /* assign the new one */ -+ if (irq == 0) { -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0), -+ bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) | -+ (1 << irqflag)); -+ } else { -+ u32 oldirqflag = bcma_read32(mdev, -+ BCMA_MIPS_MIPS74K_INTMASK(irq)); -+ if (oldirqflag) { -+ struct bcma_device *core; -+ -+ /* backplane irq line is in use, find out who uses -+ * it and set user to irq 0 -+ */ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ if ((1 << bcma_core_mips_irqflag(core)) == -+ oldirqflag) { -+ bcma_core_mips_set_irq(core, 0); -+ break; -+ } -+ } -+ } -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), -+ 1 << irqflag); -+ } -+ -+ pr_info("set_irq: core 0x%04x, irq %d => %d\n", -+ dev->id.id, oldirq + 2, irq + 2); -+} -+ -+static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq) -+{ -+ int i; -+ static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"}; -+ printk(KERN_INFO KBUILD_MODNAME ": core 0x%04x, irq :", dev->id.id); -+ for (i = 0; i <= 6; i++) -+ printk(" %s%s", irq_name[i], i == irq ? "*" : " "); -+ printk("\n"); -+} -+ -+static void bcma_core_mips_dump_irq(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ bcma_core_mips_print_irq(core, bcma_core_mips_irq(core)); -+ } -+} -+ -+static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) -+{ -+ struct bcma_bus *bus = mcore->core->bus; -+ -+ 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"); -+ } -+} -+ -+void bcma_core_mips_init(struct bcma_drv_mips *mcore) -+{ -+ struct bcma_bus *bus; -+ struct bcma_device *core; -+ bus = mcore->core->bus; -+ -+ pr_info("Initializing MIPS core...\n"); -+ -+ if (!mcore->setup_done) -+ mcore->assigned_irqs = 1; -+ -+ /* Assign IRQs to all cores on the bus */ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ int mips_irq; -+ if (core->irq) -+ continue; -+ -+ mips_irq = bcma_core_mips_irq(core); -+ if (mips_irq > 4) -+ core->irq = 0; -+ else -+ core->irq = mips_irq + 2; -+ if (core->irq > 5) -+ continue; -+ switch (core->id.id) { -+ case BCMA_CORE_PCI: -+ case BCMA_CORE_PCIE: -+ case BCMA_CORE_ETHERNET: -+ case BCMA_CORE_ETHERNET_GBIT: -+ case BCMA_CORE_MAC_GBIT: -+ case BCMA_CORE_80211: -+ case BCMA_CORE_USB20_HOST: -+ /* These devices get their own IRQ line if available, -+ * the rest goes on IRQ0 -+ */ -+ if (mcore->assigned_irqs <= 4) -+ bcma_core_mips_set_irq(core, -+ mcore->assigned_irqs++); -+ break; -+ } -+ } -+ pr_info("IRQ reconfiguration done\n"); -+ bcma_core_mips_dump_irq(bus); -+ -+ if (mcore->setup_done) -+ return; -+ -+ bcma_core_mips_flash_detect(mcore); -+ mcore->setup_done = true; -+} ---- a/drivers/bcma/main.c -+++ b/drivers/bcma/main.c -@@ -84,6 +84,7 @@ static int bcma_register_cores(struct bc - case BCMA_CORE_CHIPCOMMON: - case BCMA_CORE_PCI: - case BCMA_CORE_PCIE: -+ case BCMA_CORE_MIPS_74K: - continue; - } - -@@ -147,6 +148,13 @@ int bcma_bus_register(struct bcma_bus *b - bcma_core_chipcommon_init(&bus->drv_cc); - } - -+ /* 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); -+ } -+ - /* Init PCIE core */ - core = bcma_find_core(bus, BCMA_CORE_PCIE); - if (core) { -@@ -217,6 +225,13 @@ int __init bcma_bus_early_register(struc - bcma_core_chipcommon_init(&bus->drv_cc); - } - -+ /* 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); -+ } -+ - pr_info("Early bus registered\n"); - - return 0; ---- a/include/linux/bcma/bcma.h -+++ b/include/linux/bcma/bcma.h -@@ -6,6 +6,7 @@ - - #include <linux/bcma/bcma_driver_chipcommon.h> - #include <linux/bcma/bcma_driver_pci.h> -+#include <linux/bcma/bcma_driver_mips.h> - #include <linux/ssb/ssb.h> /* SPROM sharing */ - - #include "bcma_regs.h" -@@ -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; -+ struct bcma_drv_mips drv_mips; - - /* 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 @@ -+#ifndef LINUX_BCMA_DRIVER_MIPS_H_ -+#define LINUX_BCMA_DRIVER_MIPS_H_ -+ -+#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 -+/* which sbflags get routed to mips interrupt 2 */ -+#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 -+/* which sbflags get routed to mips interrupt 4 */ -+#define BCMA_MIPS_IPSFLAG_IRQ4 0x3F000000 -+#define BCMA_MIPS_IPSFLAG_IRQ4_SHIFT 24 -+ -+/* MIPS 74K core registers */ -+#define BCMA_MIPS_MIPS74K_CORECTL 0x0000 -+#define BCMA_MIPS_MIPS74K_EXCEPTBASE 0x0004 -+#define BCMA_MIPS_MIPS74K_BIST 0x000C -+#define BCMA_MIPS_MIPS74K_INTMASK_INT0 0x0014 -+#define BCMA_MIPS_MIPS74K_INTMASK(int) \ -+ ((int) * 4 + BCMA_MIPS_MIPS74K_INTMASK_INT0) -+#define BCMA_MIPS_MIPS74K_NMIMASK 0x002C -+#define BCMA_MIPS_MIPS74K_GPIOSEL 0x0040 -+#define BCMA_MIPS_MIPS74K_GPIOOUT 0x0044 -+#define BCMA_MIPS_MIPS74K_GPIOEN 0x0048 -+#define BCMA_MIPS_MIPS74K_CLKCTLST 0x01E0 -+ -+#define BCMA_MIPS_OOBSELOUTA30 0x100 -+ -+struct bcma_device; -+ -+struct bcma_drv_mips { -+ struct bcma_device *core; -+ u8 setup_done:1; -+ unsigned int assigned_irqs; -+}; -+ -+#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); -+ -+#endif /* LINUX_BCMA_DRIVER_MIPS_H_ */ |