diff options
Diffstat (limited to 'arch/mips/cobalt')
| -rw-r--r-- | arch/mips/cobalt/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/cobalt/console.c | 9 | ||||
| -rw-r--r-- | arch/mips/cobalt/irq.c | 116 | ||||
| -rw-r--r-- | arch/mips/cobalt/led.c | 62 | ||||
| -rw-r--r-- | arch/mips/cobalt/reset.c | 39 | ||||
| -rw-r--r-- | arch/mips/cobalt/rtc.c | 5 | ||||
| -rw-r--r-- | arch/mips/cobalt/serial.c | 7 | ||||
| -rw-r--r-- | arch/mips/cobalt/setup.c | 20 |
8 files changed, 135 insertions, 125 deletions
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile index a043f93f7d0..6b83f4ddc8f 100644 --- a/arch/mips/cobalt/Makefile +++ b/arch/mips/cobalt/Makefile @@ -2,7 +2,7 @@ # Makefile for the Cobalt micro systems family specific parts of the kernel # -obj-y := buttons.o irq.o reset.o rtc.o serial.o setup.o +obj-y := buttons.o irq.o led.o reset.o rtc.o serial.o setup.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_EARLY_PRINTK) += console.o diff --git a/arch/mips/cobalt/console.c b/arch/mips/cobalt/console.c index 0485d51f721..db330e81102 100644 --- a/arch/mips/cobalt/console.c +++ b/arch/mips/cobalt/console.c @@ -1,16 +1,15 @@ /* * (C) P. Horton 2006 */ +#include <linux/io.h> #include <linux/serial_reg.h> -#include <asm/addrspace.h> - -#include <cobalt.h> +#define UART_BASE ((void __iomem *)CKSEG1ADDR(0x1c800000)) void prom_putchar(char c) { - while(!(COBALT_UART[UART_LSR] & UART_LSR_THRE)) + while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE)) ; - COBALT_UART[UART_TX] = c; + writeb(c, UART_BASE + UART_TX); } diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c index 950ad1e8be4..ac4fb912649 100644 --- a/arch/mips/cobalt/irq.c +++ b/arch/mips/cobalt/irq.c @@ -15,102 +15,48 @@ #include <asm/i8259.h> #include <asm/irq_cpu.h> +#include <asm/irq_gt641xx.h> #include <asm/gt64120.h> -#include <cobalt.h> - -/* - * We have two types of interrupts that we handle, ones that come in through - * the CPU interrupt lines, and ones that come in on the via chip. The CPU - * mappings are: - * - * 16 - Software interrupt 0 (unused) IE_SW0 - * 17 - Software interrupt 1 (unused) IE_SW1 - * 18 - Galileo chip (timer) IE_IRQ0 - * 19 - Tulip 0 + NCR SCSI IE_IRQ1 - * 20 - Tulip 1 IE_IRQ2 - * 21 - 16550 UART IE_IRQ3 - * 22 - VIA southbridge PIC IE_IRQ4 - * 23 - unused IE_IRQ5 - * - * The VIA chip is a master/slave 8259 setup and has the following interrupts: - * - * 8 - RTC - * 9 - PCI - * 14 - IDE0 - * 15 - IDE1 - */ - -static inline void galileo_irq(void) -{ - unsigned int mask, pending, devfn; - - mask = GT_READ(GT_INTRMASK_OFS); - pending = GT_READ(GT_INTRCAUSE_OFS) & mask; - - if (pending & GT_INTR_T0EXP_MSK) { - GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_T0EXP_MSK); - do_IRQ(COBALT_GALILEO_IRQ); - } else if (pending & GT_INTR_RETRYCTR0_MSK) { - devfn = GT_READ(GT_PCI0_CFGADDR_OFS) >> 8; - GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_RETRYCTR0_MSK); - printk(KERN_WARNING - "Galileo: PCI retry count exceeded (%02x.%u)\n", - PCI_SLOT(devfn), PCI_FUNC(devfn)); - } else { - GT_WRITE(GT_INTRMASK_OFS, mask & ~pending); - printk(KERN_WARNING - "Galileo: masking unexpected interrupt %08x\n", pending); - } -} - -static inline void via_pic_irq(void) -{ - int irq; - - irq = i8259_irq(); - if (irq >= 0) - do_IRQ(irq); -} +#include <irq.h> asmlinkage void plat_irq_dispatch(void) { - unsigned pending = read_c0_status() & read_c0_cause(); + unsigned pending = read_c0_status() & read_c0_cause() & ST0_IM; + int irq; - if (pending & CAUSEF_IP2) /* COBALT_GALILEO_IRQ (18) */ - galileo_irq(); - else if (pending & CAUSEF_IP6) /* COBALT_VIA_IRQ (22) */ - via_pic_irq(); - else if (pending & CAUSEF_IP3) /* COBALT_ETH0_IRQ (19) */ - do_IRQ(COBALT_CPU_IRQ + 3); - else if (pending & CAUSEF_IP4) /* COBALT_ETH1_IRQ (20) */ - do_IRQ(COBALT_CPU_IRQ + 4); - else if (pending & CAUSEF_IP5) /* COBALT_SERIAL_IRQ (21) */ - do_IRQ(COBALT_CPU_IRQ + 5); - else if (pending & CAUSEF_IP7) /* IRQ 23 */ - do_IRQ(COBALT_CPU_IRQ + 7); + if (pending & CAUSEF_IP2) + gt641xx_irq_dispatch(); + else if (pending & CAUSEF_IP6) { + irq = i8259_irq(); + if (irq < 0) + spurious_interrupt(); + else + do_IRQ(irq); + } else if (pending & CAUSEF_IP3) + do_IRQ(MIPS_CPU_IRQ_BASE + 3); + else if (pending & CAUSEF_IP4) + do_IRQ(MIPS_CPU_IRQ_BASE + 4); + else if (pending & CAUSEF_IP5) + do_IRQ(MIPS_CPU_IRQ_BASE + 5); + else if (pending & CAUSEF_IP7) + do_IRQ(MIPS_CPU_IRQ_BASE + 7); + else + spurious_interrupt(); } -static struct irqaction irq_via = { - no_action, 0, { { 0, } }, "cascade", NULL, NULL +static struct irqaction cascade = { + .handler = no_action, + .mask = CPU_MASK_NONE, + .name = "cascade", }; void __init arch_init_irq(void) { - /* - * Mask all Galileo interrupts. The Galileo - * handler is set in cobalt_timer_setup() - */ - GT_WRITE(GT_INTRMASK_OFS, 0); - - init_i8259_irqs(); /* 0 ... 15 */ - mips_cpu_irq_init(); /* 16 ... 23 */ - - /* - * Mask all cpu interrupts - * (except IE4, we already masked those at VIA level) - */ - change_c0_status(ST0_IM, IE_IRQ4); + mips_cpu_irq_init(); + gt641xx_irq_init(); + init_i8259_irqs(); - setup_irq(COBALT_VIA_IRQ, &irq_via); + setup_irq(GT641XX_CASCADE_IRQ, &cascade); + setup_irq(I8259_CASCADE_IRQ, &cascade); } diff --git a/arch/mips/cobalt/led.c b/arch/mips/cobalt/led.c new file mode 100644 index 00000000000..1c6ebd468b0 --- /dev/null +++ b/arch/mips/cobalt/led.c @@ -0,0 +1,62 @@ +/* + * Registration of Cobalt LED platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> + +#include <cobalt.h> + +static struct resource cobalt_led_resource __initdata = { + .start = 0x1c000000, + .end = 0x1c000000, + .flags = IORESOURCE_MEM, +}; + +static __init int cobalt_led_add(void) +{ + struct platform_device *pdev; + int retval; + + if (cobalt_board_id == COBALT_BRD_ID_QUBE1 || + cobalt_board_id == COBALT_BRD_ID_QUBE2) + pdev = platform_device_alloc("cobalt-qube-leds", -1); + else + pdev = platform_device_alloc("cobalt-raq-leds", -1); + + if (!pdev) + return -ENOMEM; + + retval = platform_device_add_resources(pdev, &cobalt_led_resource, 1); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(cobalt_led_add); diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c index 43cca21fdbc..71eb4ccc4bc 100644 --- a/arch/mips/cobalt/reset.c +++ b/arch/mips/cobalt/reset.c @@ -8,36 +8,46 @@ * Copyright (C) 1995, 1996, 1997 by Ralf Baechle * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv) */ +#include <linux/init.h> +#include <linux/io.h> #include <linux/jiffies.h> - -#include <asm/io.h> -#include <asm/reboot.h> +#include <linux/leds.h> #include <cobalt.h> +#define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000)) +#define RESET 0x0f + +DEFINE_LED_TRIGGER(power_off_led_trigger); + +static int __init ledtrig_power_off_init(void) +{ + led_trigger_register_simple("power-off", &power_off_led_trigger); + return 0; +} +device_initcall(ledtrig_power_off_init); + void cobalt_machine_halt(void) { int state, last, diff; unsigned long mark; /* - * turn off bar on Qube, flash power off LED on RaQ (0.5Hz) + * turn on power off LED on RaQ * * restart if ENTER and SELECT are pressed */ last = COBALT_KEY_PORT; - for (state = 0;;) { - - state ^= COBALT_LED_POWER_OFF; - COBALT_LED_PORT = state; + led_trigger_event(power_off_led_trigger, LED_FULL); + for (state = 0;;) { diff = COBALT_KEY_PORT ^ last; last ^= diff; if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT))) - COBALT_LED_PORT = COBALT_LED_RESET; + writeb(RESET, RESET_PORT); for (mark = jiffies; jiffies - mark < HZ;) ; @@ -46,17 +56,8 @@ void cobalt_machine_halt(void) void cobalt_machine_restart(char *command) { - COBALT_LED_PORT = COBALT_LED_RESET; + writeb(RESET, RESET_PORT); /* we should never get here */ cobalt_machine_halt(); } - -/* - * This triggers the luser mode device driver for the power switch ;-) - */ -void cobalt_machine_power_off(void) -{ - printk("You can switch the machine off now.\n"); - cobalt_machine_halt(); -} diff --git a/arch/mips/cobalt/rtc.c b/arch/mips/cobalt/rtc.c index 284daefc5c5..e70794b8bcb 100644 --- a/arch/mips/cobalt/rtc.c +++ b/arch/mips/cobalt/rtc.c @@ -20,6 +20,7 @@ #include <linux/errno.h> #include <linux/init.h> #include <linux/ioport.h> +#include <linux/mc146818rtc.h> #include <linux/platform_device.h> static struct resource cobalt_rtc_resource[] __initdata = { @@ -29,8 +30,8 @@ static struct resource cobalt_rtc_resource[] __initdata = { .flags = IORESOURCE_IO, }, { - .start = 8, - .end = 8, + .start = RTC_IRQ, + .end = RTC_IRQ, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/mips/cobalt/serial.c b/arch/mips/cobalt/serial.c index 08e739704cc..53b8d0d6da9 100644 --- a/arch/mips/cobalt/serial.c +++ b/arch/mips/cobalt/serial.c @@ -24,6 +24,7 @@ #include <linux/serial_8250.h> #include <cobalt.h> +#include <irq.h> static struct resource cobalt_uart_resource[] __initdata = { { @@ -32,15 +33,15 @@ static struct resource cobalt_uart_resource[] __initdata = { .flags = IORESOURCE_MEM, }, { - .start = COBALT_SERIAL_IRQ, - .end = COBALT_SERIAL_IRQ, + .start = SERIAL_IRQ, + .end = SERIAL_IRQ, .flags = IORESOURCE_IRQ, }, }; static struct plat_serial8250_port cobalt_serial8250_port[] = { { - .irq = COBALT_SERIAL_IRQ, + .irq = SERIAL_IRQ, .uartclk = 18432000, .iotype = UPIO_MEM, .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index 7abe45e7842..d11bb1bc7b6 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -15,15 +15,16 @@ #include <asm/bootinfo.h> #include <asm/time.h> +#include <asm/i8253.h> #include <asm/io.h> #include <asm/reboot.h> #include <asm/gt64120.h> #include <cobalt.h> +#include <irq.h> extern void cobalt_machine_restart(char *command); extern void cobalt_machine_halt(void); -extern void cobalt_machine_power_off(void); const char *get_system_type(void) { @@ -45,14 +46,10 @@ void __init plat_timer_setup(struct irqaction *irq) /* Load timer value for HZ (TCLK is 50MHz) */ GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ); - /* Enable timer */ + /* Enable timer0 */ GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK); - /* Register interrupt */ - setup_irq(COBALT_GALILEO_IRQ, irq); - - /* Enable interrupt */ - GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS)); + setup_irq(GT641XX_TIMER0_IRQ, irq); } /* @@ -87,13 +84,18 @@ static struct resource cobalt_reserved_resources[] = { }, }; +void __init plat_time_init(void) +{ + setup_pit_timer(); +} + void __init plat_mem_setup(void) { int i; _machine_restart = cobalt_machine_restart; _machine_halt = cobalt_machine_halt; - pm_power_off = cobalt_machine_power_off; + pm_power_off = cobalt_machine_halt; set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); @@ -117,8 +119,6 @@ void __init prom_init(void) unsigned long memsz; char **argv; - mips_machgroup = MACH_GROUP_COBALT; - memsz = fw_arg0 & 0x7fff0000; narg = fw_arg0 & 0x0000ffff; |