/* * Setup pointers to hardware dependent routines. * * 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/interrupt.h> #include <linux/pci.h> #include <linux/init.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/gt64120.h> #include <asm/serial.h> #include <asm/mach-cobalt/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) { switch (cobalt_board_id) { case COBALT_BRD_ID_QUBE1: return "Cobalt Qube"; case COBALT_BRD_ID_RAQ1: return "Cobalt RaQ"; case COBALT_BRD_ID_QUBE2: return "Cobalt Qube2"; case COBALT_BRD_ID_RAQ2: return "Cobalt RaQ2"; } 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 = { .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[] = { { .start = 0x00, .end = 0x1f, .name = "dma1", .flags = IORESOURCE_BUSY }, { .start = 0x40, .end = 0x5f, .name = "timer", .flags = IORESOURCE_BUSY }, { .start = 0x60, .end = 0x6f, .name = "keyboard", .flags = IORESOURCE_BUSY }, { .start = 0x80, .end = 0x8f, .name = "dma page reg", .flags = IORESOURCE_BUSY }, { .start = 0xc0, .end = 0xdf, .name = "dma2", .flags = 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 }; 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; 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; /* 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); /* 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); printk("Cobalt board ID: %d\n", cobalt_board_id); #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 } /* * Prom init. We read our one and only communication with the firmware. * Grab the amount of installed memory. * Better boot loaders (CoLo) pass a command line too :-) */ void __init prom_init(void) { int narg, indx, posn, nchr; unsigned long memsz; 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; } } add_memory_region(0x0, memsz, BOOT_MEM_RAM); } unsigned long __init prom_free_prom_memory(void) { /* Nothing to do! */ return 0; }