196 lines
4.3 KiB
C
196 lines
4.3 KiB
C
/*
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* arch/arm/mach-iop32x/glantank.c
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*
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* Board support code for the GLAN Tank.
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*
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* Copyright (C) 2006 Martin Michlmayr <tbm@cyrius.com>
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* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/serial_core.h>
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#include <linux/serial_8250.h>
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#include <linux/mtd/physmap.h>
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#include <linux/platform_device.h>
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#include <asm/hardware.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/pci.h>
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#include <asm/mach/time.h>
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#include <asm/mach-types.h>
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#include <asm/page.h>
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/*
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* GLAN Tank timer tick configuration.
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*/
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static void __init glantank_timer_init(void)
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{
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/* 33.333 MHz crystal. */
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iop3xx_init_time(200000000);
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}
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static struct sys_timer glantank_timer = {
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.init = glantank_timer_init,
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.offset = iop3xx_gettimeoffset,
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};
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/*
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* GLAN Tank I/O.
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*/
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static struct map_desc glantank_io_desc[] __initdata = {
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{ /* on-board devices */
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.virtual = GLANTANK_UART,
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.pfn = __phys_to_pfn(GLANTANK_UART),
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.length = 0x00100000,
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.type = MT_DEVICE
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},
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};
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void __init glantank_map_io(void)
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{
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iop3xx_map_io();
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iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
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}
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/*
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* GLAN Tank PCI.
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*/
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#define INTA IRQ_IOP32X_XINT0
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#define INTB IRQ_IOP32X_XINT1
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#define INTC IRQ_IOP32X_XINT2
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#define INTD IRQ_IOP32X_XINT3
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static inline int __init
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glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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{
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static int pci_irq_table[][4] = {
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/*
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* PCI IDSEL/INTPIN->INTLINE
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* A B C D
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*/
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{INTD, INTD, INTD, INTD}, /* UART (8250) */
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{INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
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{INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
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{INTC, INTC, INTC, INTC}, /* USB (NEC) */
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};
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BUG_ON(pin < 1 || pin > 4);
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return pci_irq_table[slot % 4][pin - 1];
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}
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static struct hw_pci glantank_pci __initdata = {
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.swizzle = pci_std_swizzle,
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.nr_controllers = 1,
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.setup = iop3xx_pci_setup,
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.preinit = iop3xx_pci_preinit,
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.scan = iop3xx_pci_scan_bus,
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.map_irq = glantank_pci_map_irq,
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};
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static int __init glantank_pci_init(void)
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{
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if (machine_is_glantank())
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pci_common_init(&glantank_pci);
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return 0;
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}
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subsys_initcall(glantank_pci_init);
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/*
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* GLAN Tank machine initialization.
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*/
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static struct physmap_flash_data glantank_flash_data = {
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.width = 1,
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};
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static struct resource glantank_flash_resource = {
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.start = 0xf0000000,
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.end = 0xf007ffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device glantank_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &glantank_flash_data,
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},
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.num_resources = 1,
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.resource = &glantank_flash_resource,
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};
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static struct plat_serial8250_port glantank_serial_port[] = {
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{
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.mapbase = GLANTANK_UART,
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.membase = (char *)GLANTANK_UART,
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.irq = IRQ_IOP32X_XINT3,
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.flags = UPF_SKIP_TEST,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = 1843200,
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},
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{ },
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};
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static struct resource glantank_uart_resource = {
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.start = GLANTANK_UART,
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.end = GLANTANK_UART + 7,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device glantank_serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = glantank_serial_port,
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},
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.num_resources = 1,
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.resource = &glantank_uart_resource,
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};
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static void glantank_power_off(void)
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{
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__raw_writeb(0x01, 0xfe8d0004);
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while (1)
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;
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}
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static void __init glantank_init_machine(void)
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{
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platform_device_register(&iop3xx_i2c0_device);
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platform_device_register(&iop3xx_i2c1_device);
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platform_device_register(&glantank_flash_device);
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platform_device_register(&glantank_serial_device);
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pm_power_off = glantank_power_off;
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}
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MACHINE_START(GLANTANK, "GLAN Tank")
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/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
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.phys_io = GLANTANK_UART,
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.io_pg_offst = ((GLANTANK_UART) >> 18) & 0xfffc,
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.boot_params = 0xa0000100,
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.map_io = glantank_map_io,
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.init_irq = iop32x_init_irq,
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.timer = &glantank_timer,
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.init_machine = glantank_init_machine,
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MACHINE_END
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