diff options
Diffstat (limited to 'arch/mips/cobalt/setup.c')
| -rw-r--r-- | arch/mips/cobalt/setup.c | 177 |
1 files changed, 44 insertions, 133 deletions
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index c01a0170e59..9a8c2fe8d33 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -9,30 +9,21 @@ * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) * */ -#include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> #include <linux/pm.h> -#include <linux/serial.h> -#include <linux/serial_core.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/mach-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); -extern void cobalt_early_console(void); - -int cobalt_board_id; const char *get_system_type(void) { @@ -49,125 +40,54 @@ const char *get_system_type(void) return "MIPS Cobalt"; } -void __init plat_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 = { - .start = GT64111_MEM_BASE, - .end = GT64111_MEM_END, - .name = "PCI memory", - .flags = IORESOURCE_MEM -}; - -static struct resource cobalt_io_resource = { - .start = 0x1000, - .end = 0xffff, - .name = "PCI I/O", - .flags = IORESOURCE_IO -}; - -static struct resource cobalt_io_resources[] = { - { +/* + * 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 = "dma1", - .flags = IORESOURCE_BUSY - }, { - .start = 0x40, - .end = 0x5f, - .name = "timer", - .flags = IORESOURCE_BUSY - }, { + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* keyboard */ .start = 0x60, .end = 0x6f, - .name = "keyboard", - .flags = IORESOURCE_BUSY - }, { + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* dma page reg */ .start = 0x80, .end = 0x8f, - .name = "dma page reg", - .flags = IORESOURCE_BUSY - }, { + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, + }, + { /* dma2 */ .start = 0xc0, .end = 0xdf, - .name = "dma2", - .flags = IORESOURCE_BUSY + .name = "reserved", + .flags = IORESOURCE_BUSY | IORESOURCE_IO, }, }; -#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 -}; - 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; - pm_power_off = cobalt_machine_power_off; - - set_io_port_base(CKSEG1ADDR(GT64111_IO_BASE)); - - /* I/O port resource must include UART and LCD/buttons */ - ioport_resource.end = 0x0fffffff; - - /* 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) { - -#ifdef CONFIG_EARLY_PRINTK - cobalt_early_console(); -#endif - - uart.line = 0; - uart.type = PORT_UNKNOWN; - uart.uartclk = 18432000; - uart.irq = COBALT_SERIAL_IRQ; - uart.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; - 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); } /* @@ -178,35 +98,26 @@ void __init plat_mem_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; } |