diff options
Diffstat (limited to 'arch/mips/cobalt')
| -rw-r--r-- | arch/mips/cobalt/Makefile | 5 | ||||
| -rw-r--r-- | arch/mips/cobalt/Platform | 6 | ||||
| -rw-r--r-- | arch/mips/cobalt/buttons.c | 54 | ||||
| -rw-r--r-- | arch/mips/cobalt/int-handler.S | 25 | ||||
| -rw-r--r-- | arch/mips/cobalt/irq.c | 137 | ||||
| -rw-r--r-- | arch/mips/cobalt/lcd.c | 55 | ||||
| -rw-r--r-- | arch/mips/cobalt/led.c | 62 | ||||
| -rw-r--r-- | arch/mips/cobalt/mtd.c | 61 | ||||
| -rw-r--r-- | arch/mips/cobalt/pci.c | 48 | ||||
| -rw-r--r-- | arch/mips/cobalt/reset.c | 65 | ||||
| -rw-r--r-- | arch/mips/cobalt/rtc.c | 64 | ||||
| -rw-r--r-- | arch/mips/cobalt/serial.c | 86 | ||||
| -rw-r--r-- | arch/mips/cobalt/setup.c | 179 | ||||
| -rw-r--r-- | arch/mips/cobalt/time.c | 54 |
14 files changed, 606 insertions, 295 deletions
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile index 3b6b7579d1d..558e9497794 100644 --- a/arch/mips/cobalt/Makefile +++ b/arch/mips/cobalt/Makefile @@ -2,6 +2,7 @@ # Makefile for the Cobalt micro systems family specific parts of the kernel # -obj-y := irq.o int-handler.o reset.o setup.o +obj-y := buttons.o irq.o lcd.o led.o reset.o rtc.o serial.o setup.o time.o -EXTRA_AFLAGS := $(CFLAGS) +obj-$(CONFIG_PCI) += pci.o +obj-$(CONFIG_MTD_PHYSMAP) += mtd.o diff --git a/arch/mips/cobalt/Platform b/arch/mips/cobalt/Platform new file mode 100644 index 00000000000..34123efd6df --- /dev/null +++ b/arch/mips/cobalt/Platform @@ -0,0 +1,6 @@ +# +# Cobalt Server +# +platform-$(CONFIG_MIPS_COBALT) += cobalt/ +cflags-$(CONFIG_MIPS_COBALT) += -I$(srctree)/arch/mips/include/asm/mach-cobalt +load-$(CONFIG_MIPS_COBALT) += 0xffffffff80080000 diff --git a/arch/mips/cobalt/buttons.c b/arch/mips/cobalt/buttons.c new file mode 100644 index 00000000000..4eaec8b46e0 --- /dev/null +++ b/arch/mips/cobalt/buttons.c @@ -0,0 +1,54 @@ +/* + * Cobalt buttons platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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/platform_device.h> +#include <linux/errno.h> +#include <linux/init.h> + +static struct resource cobalt_buttons_resource __initdata = { + .start = 0x1d000000, + .end = 0x1d000003, + .flags = IORESOURCE_MEM, +}; + +static __init int cobalt_add_buttons(void) +{ + struct platform_device *pd; + int error; + + pd = platform_device_alloc("Cobalt buttons", -1); + if (!pd) + return -ENOMEM; + + error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1); + if (error) + goto err_free_device; + + error = platform_device_add(pd); + if (error) + goto err_free_device; + + return 0; + + err_free_device: + platform_device_put(pd); + return error; +} +device_initcall(cobalt_add_buttons); diff --git a/arch/mips/cobalt/int-handler.S b/arch/mips/cobalt/int-handler.S deleted file mode 100644 index f92608e8d84..00000000000 --- a/arch/mips/cobalt/int-handler.S +++ /dev/null @@ -1,25 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle - * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) - */ -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/cobalt/cobalt.h> -#include <asm/regdef.h> -#include <asm/stackframe.h> - - .text - .align 5 - NESTED(cobalt_handle_int, PT_SIZE, sp) - SAVE_ALL - CLI - - PTR_LA ra, ret_from_irq - move a0, sp - j cobalt_irq - - END(cobalt_handle_int) diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c index 0d90851f925..965c777d356 100644 --- a/arch/mips/cobalt/irq.c +++ b/arch/mips/cobalt/irq.c @@ -15,123 +15,48 @@ #include <asm/i8259.h> #include <asm/irq_cpu.h> +#include <asm/irq_gt641xx.h> #include <asm/gt64120.h> -#include <asm/ptrace.h> -#include <asm/cobalt/cobalt.h> +#include <irq.h> -extern void cobalt_handle_int(void); - -/* - * 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(struct pt_regs *regs) -{ - unsigned int mask, pending, devfn; - - mask = GALILEO_INL(GT_INTRMASK_OFS); - pending = GALILEO_INL(GT_INTRCAUSE_OFS) & mask; - - if (pending & GALILEO_INTR_T0EXP) { - - GALILEO_OUTL(~GALILEO_INTR_T0EXP, GT_INTRCAUSE_OFS); - do_IRQ(COBALT_GALILEO_IRQ, regs); - - } else if (pending & GALILEO_INTR_RETRY_CTR) { - - devfn = GALILEO_INL(GT_PCI0_CFGADDR_OFS) >> 8; - GALILEO_OUTL(~GALILEO_INTR_RETRY_CTR, GT_INTRCAUSE_OFS); - printk(KERN_WARNING "Galileo: PCI retry count exceeded (%02x.%u)\n", - PCI_SLOT(devfn), PCI_FUNC(devfn)); - - } else { - - GALILEO_OUTL(mask & ~pending, GT_INTRMASK_OFS); - printk(KERN_WARNING "Galileo: masking unexpected interrupt %08x\n", pending); - } -} - -static inline void via_pic_irq(struct pt_regs *regs) +asmlinkage void plat_irq_dispatch(void) { + unsigned pending = read_c0_status() & read_c0_cause() & ST0_IM; int irq; - irq = i8259_irq(); - if (irq >= 0) - do_IRQ(irq, regs); -} - -asmlinkage void cobalt_irq(struct pt_regs *regs) -{ - unsigned pending; - - pending = read_c0_status() & read_c0_cause(); - - if (pending & CAUSEF_IP2) /* COBALT_GALILEO_IRQ (18) */ - - galileo_irq(regs); - - else if (pending & CAUSEF_IP6) /* COBALT_VIA_IRQ (22) */ - - via_pic_irq(regs); - - else if (pending & CAUSEF_IP3) /* COBALT_ETH0_IRQ (19) */ - - do_IRQ(COBALT_CPU_IRQ + 3, regs); - - else if (pending & CAUSEF_IP4) /* COBALT_ETH1_IRQ (20) */ - - do_IRQ(COBALT_CPU_IRQ + 4, regs); - - else if (pending & CAUSEF_IP5) /* COBALT_SERIAL_IRQ (21) */ - - do_IRQ(COBALT_CPU_IRQ + 5, regs); - - else if (pending & CAUSEF_IP7) /* IRQ 23 */ - - do_IRQ(COBALT_CPU_IRQ + 7, regs); + 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, + .name = "cascade", + .flags = IRQF_NO_THREAD, }; void __init arch_init_irq(void) { - /* - * Mask all Galileo interrupts. The Galileo - * handler is set in cobalt_timer_setup() - */ - GALILEO_OUTL(0, GT_INTRMASK_OFS); - - set_except_vector(0, cobalt_handle_int); - - init_i8259_irqs(); /* 0 ... 15 */ - mips_cpu_irq_init(COBALT_CPU_IRQ); /* 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/lcd.c b/arch/mips/cobalt/lcd.c new file mode 100644 index 00000000000..0f1cd90f37e --- /dev/null +++ b/arch/mips/cobalt/lcd.c @@ -0,0 +1,55 @@ +/* + * Registration of Cobalt LCD platform device. + * + * Copyright (C) 2008 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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> + +static struct resource cobalt_lcd_resource __initdata = { + .start = 0x1f000000, + .end = 0x1f00001f, + .flags = IORESOURCE_MEM, +}; + +static __init int cobalt_lcd_add(void) +{ + struct platform_device *pdev; + int retval; + + pdev = platform_device_alloc("cobalt-lcd", -1); + if (!pdev) + return -ENOMEM; + + retval = platform_device_add_resources(pdev, &cobalt_lcd_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_lcd_add); diff --git a/arch/mips/cobalt/led.c b/arch/mips/cobalt/led.c new file mode 100644 index 00000000000..32265f514e3 --- /dev/null +++ b/arch/mips/cobalt/led.c @@ -0,0 +1,62 @@ +/* + * Registration of Cobalt LED platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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/mtd.c b/arch/mips/cobalt/mtd.c new file mode 100644 index 00000000000..8db7b5d8156 --- /dev/null +++ b/arch/mips/cobalt/mtd.c @@ -0,0 +1,61 @@ +/* + * Registration of Cobalt MTD device. + * + * Copyright (C) 2006 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> + +static struct mtd_partition cobalt_mtd_partitions[] = { + { + .name = "firmware", + .offset = 0x0, + .size = 0x80000, + }, +}; + +static struct physmap_flash_data cobalt_flash_data = { + .width = 1, + .nr_parts = 1, + .parts = cobalt_mtd_partitions, +}; + +static struct resource cobalt_mtd_resource = { + .start = 0x1fc00000, + .end = 0x1fc7ffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device cobalt_mtd = { + .name = "physmap-flash", + .dev = { + .platform_data = &cobalt_flash_data, + }, + .num_resources = 1, + .resource = &cobalt_mtd_resource, +}; + +static int __init cobalt_mtd_init(void) +{ + platform_device_register(&cobalt_mtd); + + return 0; +} + +module_init(cobalt_mtd_init); diff --git a/arch/mips/cobalt/pci.c b/arch/mips/cobalt/pci.c new file mode 100644 index 00000000000..85ec9cc31d6 --- /dev/null +++ b/arch/mips/cobalt/pci.c @@ -0,0 +1,48 @@ +/* + * Register PCI controller. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org) + * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) + * + */ +#include <linux/init.h> +#include <linux/pci.h> + +#include <asm/gt64120.h> + +extern struct pci_ops gt64xxx_pci0_ops; + +static struct resource cobalt_mem_resource = { + .start = GT_DEF_PCI0_MEM0_BASE, + .end = GT_DEF_PCI0_MEM0_BASE + GT_DEF_PCI0_MEM0_SIZE - 1, + .name = "PCI memory", + .flags = IORESOURCE_MEM, +}; + +static struct resource cobalt_io_resource = { + .start = 0x1000, + .end = 0xffffffUL, + .name = "PCI I/O", + .flags = IORESOURCE_IO, +}; + +static struct pci_controller cobalt_pci_controller = { + .pci_ops = >64xxx_pci0_ops, + .mem_resource = &cobalt_mem_resource, + .io_resource = &cobalt_io_resource, + .io_offset = 0 - GT_DEF_PCI0_IO_BASE, + .io_map_base = CKSEG1ADDR(GT_DEF_PCI0_IO_BASE), +}; + +static int __init cobalt_pci_init(void) +{ + register_pci_controller(&cobalt_pci_controller); + + return 0; +} + +arch_initcall(cobalt_pci_init); diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c index 805a0e88507..4eedd481dd0 100644 --- a/arch/mips/cobalt/reset.c +++ b/arch/mips/cobalt/reset.c @@ -8,58 +8,45 @@ * Copyright (C) 1995, 1996, 1997 by Ralf Baechle * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv) */ -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/cacheflush.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <asm/system.h> -#include <asm/mipsregs.h> -#include <asm/cobalt/cobalt.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/leds.h> -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) - * - * restart if ENTER and SELECT are pressed - */ +#include <asm/idle.h> +#include <asm/processor.h> - last = COBALT_KEY_PORT; +#include <cobalt.h> - for (state = 0;;) { +#define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000)) +#define RESET 0x0f - state ^= COBALT_LED_POWER_OFF; - COBALT_LED_PORT = state; +DEFINE_LED_TRIGGER(power_off_led_trigger); - diff = COBALT_KEY_PORT ^ last; - last ^= diff; +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); - if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT))) - COBALT_LED_PORT = COBALT_LED_RESET; +void cobalt_machine_halt(void) +{ + /* + * turn on power off LED on RaQ + */ + led_trigger_event(power_off_led_trigger, LED_FULL); - for (mark = jiffies; jiffies - mark < HZ;) - ; + local_irq_disable(); + while (1) { + if (cpu_wait) + cpu_wait(); } } 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 new file mode 100644 index 00000000000..a6bc75ada9d --- /dev/null +++ b/arch/mips/cobalt/rtc.c @@ -0,0 +1,64 @@ +/* + * Registration of Cobalt RTC platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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/mc146818rtc.h> +#include <linux/platform_device.h> + +static struct resource cobalt_rtc_resource[] __initdata = { + { + .start = 0x70, + .end = 0x77, + .flags = IORESOURCE_IO, + }, + { + .start = RTC_IRQ, + .end = RTC_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static __init int cobalt_rtc_add(void) +{ + struct platform_device *pdev; + int retval; + + pdev = platform_device_alloc("rtc_cmos", -1); + if (!pdev) + return -ENOMEM; + + retval = platform_device_add_resources(pdev, cobalt_rtc_resource, + ARRAY_SIZE(cobalt_rtc_resource)); + 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_rtc_add); diff --git a/arch/mips/cobalt/serial.c b/arch/mips/cobalt/serial.c new file mode 100644 index 00000000000..7cb51f57275 --- /dev/null +++ b/arch/mips/cobalt/serial.c @@ -0,0 +1,86 @@ +/* + * Registration of Cobalt UART platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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 <linux/serial_8250.h> + +#include <cobalt.h> +#include <irq.h> + +static struct resource cobalt_uart_resource[] __initdata = { + { + .start = 0x1c800000, + .end = 0x1c800007, + .flags = IORESOURCE_MEM, + }, + { + .start = SERIAL_IRQ, + .end = SERIAL_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct plat_serial8250_port cobalt_serial8250_port[] = { + { + .irq = SERIAL_IRQ, + .uartclk = 18432000, + .iotype = UPIO_MEM, + .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .mapbase = 0x1c800000, + }, + {}, +}; + +static __init int cobalt_uart_add(void) +{ + struct platform_device *pdev; + int retval; + + /* + * Cobalt Qube1 has no UART. + */ + if (cobalt_board_id == COBALT_BRD_ID_QUBE1) + return 0; + + pdev = platform_device_alloc("serial8250", -1); + if (!pdev) + return -ENOMEM; + + pdev->id = PLAT8250_DEV_PLATFORM; + pdev->dev.platform_data = cobalt_serial8250_port; + + retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource)); + 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_uart_add); diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index d358a118fa3..9a8c2fe8d33 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -5,33 +5,25 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org) + * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org) * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) * */ -#include <linux/config.h> -#include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/init.h> -#include <linux/serial.h> -#include <linux/serial_core.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/pm.h> #include <asm/bootinfo.h> -#include <asm/time.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/processor.h> #include <asm/reboot.h> +#include <asm/setup.h> #include <asm/gt64120.h> -#include <asm/serial.h> -#include <asm/cobalt/cobalt.h> +#include <cobalt.h> extern void cobalt_machine_restart(char *command); extern void cobalt_machine_halt(void); -extern void cobalt_machine_power_off(void); - -int cobalt_board_id; const char *get_system_type(void) { @@ -48,104 +40,54 @@ const char *get_system_type(void) return "MIPS Cobalt"; } -static void __init cobalt_timer_setup(struct irqaction *irq) -{ - /* Load timer value for 1KHz (TCLK is 50MHz) */ - GALILEO_OUTL(50*1000*1000 / 1000, GT_TC0_OFS); - - /* Enable timer */ - GALILEO_OUTL(GALILEO_ENTC0 | GALILEO_SELTC0, GT_TC_CONTROL_OFS); - - /* Register interrupt */ - setup_irq(COBALT_GALILEO_IRQ, irq); - - /* Enable interrupt */ - GALILEO_OUTL(GALILEO_INTR_T0EXP | GALILEO_INL(GT_INTRMASK_OFS), GT_INTRMASK_OFS); -} - -extern struct pci_ops gt64111_pci_ops; - -static struct resource cobalt_mem_resource = { - "PCI memory", GT64111_MEM_BASE, GT64111_MEM_END, IORESOURCE_MEM -}; - -static struct resource cobalt_io_resource = { - "PCI I/O", 0x1000, 0xffff, IORESOURCE_IO -}; - -static struct resource cobalt_io_resources[] = { - { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, - { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, - { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY }, - { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, - { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, -}; - -#define COBALT_IO_RESOURCES (sizeof(cobalt_io_resources)/sizeof(struct resource)) - -static struct pci_controller cobalt_pci_controller = { - .pci_ops = >64111_pci_ops, - .mem_resource = &cobalt_mem_resource, - .mem_offset = 0, - .io_resource = &cobalt_io_resource, - .io_offset = 0 - GT64111_IO_BASE +/* + * Cobalt doesn't have PS/2 keyboard/mouse interfaces, + * keyboard conntroller is never used. + * Also PCI-ISA bridge DMA contoroller is never used. + */ +static struct resource cobalt_reserved_resources[] = { + { /* dma1 */ + .start = 0x00, + .end = 0x1f, + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* keyboard */ + .start = 0x60, + .end = 0x6f, + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* dma page reg */ + .start = 0x80, + .end = 0x8f, + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* dma2 */ + .start = 0xc0, + .end = 0xdf, + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, }; -void __init plat_setup(void) +void __init plat_mem_setup(void) { - static struct uart_port uart; - unsigned int devfn = PCI_DEVFN(COBALT_PCICONF_VIA, 0); int i; _machine_restart = cobalt_machine_restart; _machine_halt = cobalt_machine_halt; - _machine_power_off = cobalt_machine_power_off; - - board_timer_setup = cobalt_timer_setup; - - set_io_port_base(CKSEG1ADDR(GT64111_IO_BASE)); - - /* I/O port resource must include UART and LCD/buttons */ - ioport_resource.end = 0x0fffffff; - - /* - * This is a prom style console. We just poke at the - * UART to make it talk. - * Only use this console if you really screw up and can't - * get to the stage of setting up a real serial console. - */ - /*ns16550_setup_console();*/ - - /* request I/O space for devices used on all i[345]86 PCs */ - for (i = 0; i < COBALT_IO_RESOURCES; i++) - request_resource(&ioport_resource, cobalt_io_resources + i); + pm_power_off = cobalt_machine_halt; - /* Read the cobalt id register out of the PCI config space */ - PCI_CFG_SET(devfn, (VIA_COBALT_BRD_ID_REG & ~0x3)); - cobalt_board_id = GALILEO_INL(GT_PCI0_CFGDATA_OFS); - cobalt_board_id >>= ((VIA_COBALT_BRD_ID_REG & 3) * 8); - cobalt_board_id = VIA_COBALT_BRD_REG_to_ID(cobalt_board_id); + set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); - printk("Cobalt board ID: %d\n", cobalt_board_id); + /* I/O port resource */ + ioport_resource.end = 0x01ffffff; -#ifdef CONFIG_PCI - register_pci_controller(&cobalt_pci_controller); -#endif - -#ifdef CONFIG_SERIAL_8250 - if (cobalt_board_id > COBALT_BRD_ID_RAQ1) { - - uart.line = 0; - uart.type = PORT_UNKNOWN; - uart.uartclk = 18432000; - uart.irq = COBALT_SERIAL_IRQ; - uart.flags = STD_COM_FLAGS; - uart.iobase = 0xc800000; - uart.iotype = UPIO_PORT; - - early_serial_setup(&uart); - } -#endif + /* These resources have been reserved by VIA SuperI/O chip. */ + for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) + request_resource(&ioport_resource, cobalt_reserved_resources + i); } /* @@ -156,35 +98,26 @@ void __init plat_setup(void) void __init prom_init(void) { - int narg, indx, posn, nchr; unsigned long memsz; + int argc, i; char **argv; - mips_machgroup = MACH_GROUP_COBALT; - memsz = fw_arg0 & 0x7fff0000; - narg = fw_arg0 & 0x0000ffff; - - if (narg) { - arcs_cmdline[0] = '\0'; - argv = (char **) fw_arg1; - posn = 0; - for (indx = 1; indx < narg; ++indx) { - nchr = strlen(argv[indx]); - if (posn + 1 + nchr + 1 > sizeof(arcs_cmdline)) - break; - if (posn) - arcs_cmdline[posn++] = ' '; - strcpy(arcs_cmdline + posn, argv[indx]); - posn += nchr; - } + argc = fw_arg0 & 0x0000ffff; + argv = (char **)fw_arg1; + + for (i = 1; i < argc; i++) { + strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); + if (i < (argc - 1)) + strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); } add_memory_region(0x0, memsz, BOOT_MEM_RAM); + + setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0); } -unsigned long __init prom_free_prom_memory(void) +void __init prom_free_prom_memory(void) { /* Nothing to do! */ - return 0; } diff --git a/arch/mips/cobalt/time.c b/arch/mips/cobalt/time.c new file mode 100644 index 00000000000..3bff3b820ba --- /dev/null +++ b/arch/mips/cobalt/time.c @@ -0,0 +1,54 @@ +/* + * Cobalt time initialization. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + * + * 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/i8253.h> +#include <linux/init.h> + +#include <asm/gt64120.h> +#include <asm/time.h> + +#define GT641XX_BASE_CLOCK 50000000 /* 50MHz */ + +void __init plat_time_init(void) +{ + u32 start, end; + int i = HZ / 10; + + setup_pit_timer(); + + gt641xx_set_base_clock(GT641XX_BASE_CLOCK); + + /* + * MIPS counter frequency is measured during a 100msec interval + * using GT64111 timer0. + */ + while (!gt641xx_timer0_state()) + ; + + start = read_c0_count(); + + while (i--) + while (!gt641xx_timer0_state()) + ; + + end = read_c0_count(); + + mips_hpt_frequency = (end - start) * 10; + printk(KERN_INFO "MIPS counter frequency %dHz\n", mips_hpt_frequency); +} |