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-rw-r--r--target/linux/brcm47xx/patches-3.0/0010-bcm47xx-add-support-for-bcma-bus.patch410
1 files changed, 410 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0010-bcm47xx-add-support-for-bcma-bus.patch b/target/linux/brcm47xx/patches-3.0/0010-bcm47xx-add-support-for-bcma-bus.patch
new file mode 100644
index 000000000..b2de30116
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.0/0010-bcm47xx-add-support-for-bcma-bus.patch
@@ -0,0 +1,410 @@
+From 27aa4f76cfe54b6ce3bf98f4d5fd70ab1f60071f Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Mon, 6 Jun 2011 00:07:37 +0200
+Subject: [PATCH 10/22] bcm47xx: add support for bcma bus
+
+This patch add support for the bcma bus. Broadcom uses only Mips 74K
+CPUs on the new SoC and on the old ons using ssb bus there are no Mips
+74K CPUs.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/bcm47xx/Kconfig | 13 ++++++
+ arch/mips/bcm47xx/gpio.c | 22 +++++++++++
+ arch/mips/bcm47xx/nvram.c | 10 +++++
+ arch/mips/bcm47xx/serial.c | 29 ++++++++++++++
+ arch/mips/bcm47xx/setup.c | 53 +++++++++++++++++++++++++-
+ arch/mips/bcm47xx/time.c | 5 ++
+ arch/mips/include/asm/mach-bcm47xx/bcm47xx.h | 8 ++++
+ arch/mips/include/asm/mach-bcm47xx/gpio.h | 41 ++++++++++++++++++++
+ drivers/watchdog/bcm47xx_wdt.c | 11 +++++
+ 9 files changed, 190 insertions(+), 2 deletions(-)
+
+--- a/arch/mips/bcm47xx/Kconfig
++++ b/arch/mips/bcm47xx/Kconfig
+@@ -15,4 +15,17 @@ config BCM47XX_SSB
+
+ This will generate an image with support for SSB and MIPS32 R1 instruction set.
+
++config BCM47XX_BCMA
++ bool "BCMA Support for Broadcom BCM47XX"
++ select SYS_HAS_CPU_MIPS32_R2
++ select BCMA
++ select BCMA_HOST_SOC
++ select BCMA_DRIVER_MIPS
++ select BCMA_DRIVER_PCI_HOSTMODE if PCI
++ default y
++ help
++ Add support for new Broadcom BCM47xx boards with Broadcom specific Advanced Microcontroller Bus.
++
++ This will generate an image with support for BCMA and MIPS32 R2 instruction set.
++
+ endif
+--- a/arch/mips/bcm47xx/gpio.c
++++ b/arch/mips/bcm47xx/gpio.c
+@@ -36,6 +36,16 @@ int gpio_request(unsigned gpio, const ch
+
+ return 0;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
++ return -EINVAL;
++
++ if (test_and_set_bit(gpio, gpio_in_use))
++ return -EBUSY;
++
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
+@@ -57,6 +67,14 @@ void gpio_free(unsigned gpio)
+ clear_bit(gpio, gpio_in_use);
+ return;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
++ return;
++
++ clear_bit(gpio, gpio_in_use);
++ return;
++#endif
+ }
+ }
+ EXPORT_SYMBOL(gpio_free);
+@@ -73,6 +91,10 @@ int gpio_to_irq(unsigned gpio)
+ else
+ return -EINVAL;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ return bcma_core_mips_irq(bcm47xx_bus.bcma.bus.drv_cc.core) + 2;
++#endif
+ }
+ return -EINVAL;
+ }
+--- a/arch/mips/bcm47xx/nvram.c
++++ b/arch/mips/bcm47xx/nvram.c
+@@ -29,6 +29,9 @@ static void early_nvram_init(void)
+ #ifdef CONFIG_BCM47XX_SSB
+ struct ssb_mipscore *mcore_ssb;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ struct bcma_drv_cc *bcma_cc;
++#endif
+ struct nvram_header *header;
+ int i;
+ u32 base = 0;
+@@ -44,6 +47,13 @@ static void early_nvram_init(void)
+ lim = mcore_ssb->flash_window_size;
+ break;
+ #endif
++#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;
++ break;
++#endif
+ }
+
+ off = FLASH_MIN;
+--- a/arch/mips/bcm47xx/serial.c
++++ b/arch/mips/bcm47xx/serial.c
+@@ -47,6 +47,31 @@ static int __init uart8250_init_ssb(void
+ }
+ #endif
+
++#ifdef CONFIG_BCM47XX_BCMA
++static int __init uart8250_init_bcma(void)
++{
++ int i;
++ struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);
++
++ memset(&uart8250_data, 0, sizeof(uart8250_data));
++
++ for (i = 0; i < cc->nr_serial_ports; i++) {
++ struct plat_serial8250_port *p = &(uart8250_data[i]);
++ struct bcma_serial_port *bcma_port;
++ bcma_port = &(cc->serial_ports[i]);
++
++ p->mapbase = (unsigned int) bcma_port->regs;
++ p->membase = (void *) bcma_port->regs;
++ p->irq = bcma_port->irq + 2;
++ p->uartclk = bcma_port->baud_base;
++ p->regshift = bcma_port->reg_shift;
++ p->iotype = UPIO_MEM;
++ p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
++ }
++ return platform_device_register(&uart8250_device);
++}
++#endif
++
+ static int __init uart8250_init(void)
+ {
+ switch (bcm47xx_active_bus_type) {
+@@ -54,6 +79,10 @@ static int __init uart8250_init(void)
+ case BCM47XX_BUS_TYPE_SSB:
+ return uart8250_init_ssb();
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ return uart8250_init_bcma();
++#endif
+ }
+ return -EINVAL;
+ }
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -29,6 +29,7 @@
+ #include <linux/types.h>
+ #include <linux/ssb/ssb.h>
+ #include <linux/ssb/ssb_embedded.h>
++#include <linux/bcma/bcma_soc.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -52,6 +53,11 @@ static void bcm47xx_machine_restart(char
+ ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1);
+ break;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1);
++ break;
++#endif
+ }
+ while (1)
+ cpu_relax();
+@@ -67,6 +73,11 @@ static void bcm47xx_machine_halt(void)
+ ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
+ break;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
++ break;
++#endif
+ }
+ while (1)
+ cpu_relax();
+@@ -295,16 +306,54 @@ static void __init bcm47xx_register_ssb(
+ }
+ #endif
+
++#ifdef CONFIG_BCM47XX_BCMA
++static void __init bcm47xx_register_bcma(void)
++{
++ int err;
++
++ err = bcma_host_soc_register(&bcm47xx_bus.bcma);
++ if (err)
++ panic("Failed to initialize BCMA bus (err %d)\n", err);
++}
++#endif
++
+ void __init plat_mem_setup(void)
+ {
+ struct cpuinfo_mips *c = &current_cpu_data;
+
++ if (c->cputype == CPU_74K) {
++ printk(KERN_INFO "bcm47xx: using bcma bus\n");
++#ifdef CONFIG_BCM47XX_BCMA
++ bcm47xx_active_bus_type = BCM47XX_BUS_TYPE_BCMA;
++ bcm47xx_register_bcma();
++#endif
++ } else {
++ printk(KERN_INFO "bcm47xx: using ssb bus\n");
+ #ifdef CONFIG_BCM47XX_SSB
+- bcm47xx_active_bus_type = BCM47XX_BUS_TYPE_SSB;
+- bcm47xx_register_ssb();
++ bcm47xx_active_bus_type = BCM47XX_BUS_TYPE_SSB;
++ bcm47xx_register_ssb();
+ #endif
++ }
+
+ _machine_restart = bcm47xx_machine_restart;
+ _machine_halt = bcm47xx_machine_halt;
+ pm_power_off = bcm47xx_machine_halt;
+ }
++
++static int __init bcm47xx_register_bus_complete(void)
++{
++ switch (bcm47xx_active_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++ case BCM47XX_BUS_TYPE_SSB:
++ /* Nothing to do */
++ break;
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_bus_register(&bcm47xx_bus.bcma.bus);
++ break;
++#endif
++ }
++ return 0;
++}
++device_initcall(bcm47xx_register_bus_complete);
+--- a/arch/mips/bcm47xx/time.c
++++ b/arch/mips/bcm47xx/time.c
+@@ -45,6 +45,11 @@ void __init plat_time_init(void)
+ hz = ssb_cpu_clock(&bcm47xx_bus.ssb.mipscore) / 2;
+ break;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ hz = bcma_cpu_clock(&bcm47xx_bus.bcma.bus.drv_mips) / 2;
++ break;
++#endif
+ }
+
+ if (!hz)
+--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
++++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
+@@ -20,17 +20,25 @@
+ #define __ASM_BCM47XX_H
+
+ #include <linux/ssb/ssb.h>
++#include <linux/bcma/bcma.h>
++#include <linux/bcma/bcma_soc.h>
+
+ enum bcm47xx_bus_type {
+ #ifdef CONFIG_BCM47XX_SSB
+ BCM47XX_BUS_TYPE_SSB,
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ BCM47XX_BUS_TYPE_BCMA,
++#endif
+ };
+
+ union bcm47xx_bus {
+ #ifdef CONFIG_BCM47XX_SSB
+ struct ssb_bus ssb;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ struct bcma_soc bcma;
++#endif
+ };
+
+ extern union bcm47xx_bus bcm47xx_bus;
+--- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
++++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
+@@ -10,6 +10,7 @@
+ #define __BCM47XX_GPIO_H
+
+ #include <linux/ssb/ssb_embedded.h>
++#include <linux/bcma/bcma.h>
+ #include <asm/mach-bcm47xx/bcm47xx.h>
+
+ #define BCM47XX_EXTIF_GPIO_LINES 5
+@@ -26,6 +27,11 @@ static inline int gpio_get_value(unsigne
+ case BCM47XX_BUS_TYPE_SSB:
+ return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio);
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc,
++ 1 << gpio);
++#endif
+ }
+ return -EINVAL;
+ }
+@@ -37,6 +43,13 @@ static inline void gpio_set_value(unsign
+ case BCM47XX_BUS_TYPE_SSB:
+ ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
+ value ? 1 << gpio : 0);
++ return;
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
++ value ? 1 << gpio : 0);
++ return;
+ #endif
+ }
+ }
+@@ -49,6 +62,12 @@ static inline int gpio_direction_input(u
+ ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0);
+ return 0;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
++ 0);
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
+@@ -65,6 +84,16 @@ static inline int gpio_direction_output(
+ ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio);
+ return 0;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ /* first set the gpio out value */
++ bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
++ value ? 1 << gpio : 0);
++ /* then set the gpio mode */
++ bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
++ 1 << gpio);
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
+@@ -78,6 +107,12 @@ static inline int gpio_intmask(unsigned
+ value ? 1 << gpio : 0);
+ return 0;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
++ 1 << gpio, value ? 1 << gpio : 0);
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
+@@ -91,6 +126,12 @@ static inline int gpio_polarity(unsigned
+ value ? 1 << gpio : 0);
+ return 0;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
++ 1 << gpio, value ? 1 << gpio : 0);
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -60,6 +60,12 @@ static inline void bcm47xx_wdt_hw_start(
+ ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0xfffffff);
+ break;
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc,
++ 0xfffffff);
++ break;
++#endif
+ }
+ }
+
+@@ -70,6 +76,11 @@ static inline int bcm47xx_wdt_hw_stop(vo
+ case BCM47XX_BUS_TYPE_SSB:
+ return ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
+ #endif
++#ifdef CONFIG_BCM47XX_BCMA
++ case BCM47XX_BUS_TYPE_BCMA:
++ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
++ return 0;
++#endif
+ }
+ return -EINVAL;
+ }
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