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316 lines
7.2 KiB
C
316 lines
7.2 KiB
C
/*
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* linux/arch/arm/mach-sa1100/collie.c
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* This file contains all Collie-specific tweaks.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* ChangeLog:
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* 2006 Pavel Machek <pavel@suse.cz>
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* 03-06-2004 John Lenz <lenz@cs.wisc.edu>
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* 06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
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* 04-16-2001 Lineo Japan,Inc. ...
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/tty.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/timer.h>
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#include <linux/gpio.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/setup.h>
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#include <mach/collie.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <asm/mach/serial_sa1100.h>
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#include <asm/hardware/scoop.h>
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#include <asm/mach/sharpsl_param.h>
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#include <asm/hardware/locomo.h>
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#include <mach/mcp.h>
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#include "generic.h"
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static struct resource collie_scoop_resources[] = {
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[0] = {
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.start = 0x40800000,
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.end = 0x40800fff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct scoop_config collie_scoop_setup = {
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.io_dir = COLLIE_SCOOP_IO_DIR,
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.io_out = COLLIE_SCOOP_IO_OUT,
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};
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struct platform_device colliescoop_device = {
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.name = "sharp-scoop",
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.id = -1,
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.dev = {
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.platform_data = &collie_scoop_setup,
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},
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.num_resources = ARRAY_SIZE(collie_scoop_resources),
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.resource = collie_scoop_resources,
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};
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static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
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{
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.dev = &colliescoop_device.dev,
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.irq = COLLIE_IRQ_GPIO_CF_IRQ,
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.cd_irq = COLLIE_IRQ_GPIO_CF_CD,
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.cd_irq_str = "PCMCIA0 CD",
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},
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};
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static struct scoop_pcmcia_config collie_pcmcia_config = {
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.devs = &collie_pcmcia_scoop[0],
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.num_devs = 1,
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};
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static struct mcp_plat_data collie_mcp_data = {
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.mccr0 = MCCR0_ADM | MCCR0_ExtClk,
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.sclk_rate = 9216000,
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};
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#ifdef CONFIG_SHARP_LOCOMO
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/*
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* low-level UART features.
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*/
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struct platform_device collie_locomo_device;
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static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
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{
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if (mctrl & TIOCM_RTS)
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locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
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else
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locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
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if (mctrl & TIOCM_DTR)
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locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
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else
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locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
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}
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static u_int collie_uart_get_mctrl(struct uart_port *port)
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{
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int ret = TIOCM_CD;
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unsigned int r;
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r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
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if (r == -ENODEV)
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return ret;
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if (r & LOCOMO_GPIO_CTS)
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ret |= TIOCM_CTS;
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if (r & LOCOMO_GPIO_DSR)
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ret |= TIOCM_DSR;
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return ret;
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}
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static struct sa1100_port_fns collie_port_fns __initdata = {
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.set_mctrl = collie_uart_set_mctrl,
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.get_mctrl = collie_uart_get_mctrl,
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};
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static int collie_uart_probe(struct locomo_dev *dev)
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{
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return 0;
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}
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static int collie_uart_remove(struct locomo_dev *dev)
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{
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return 0;
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}
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static struct locomo_driver collie_uart_driver = {
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.drv = {
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.name = "collie_uart",
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},
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.devid = LOCOMO_DEVID_UART,
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.probe = collie_uart_probe,
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.remove = collie_uart_remove,
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};
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static int __init collie_uart_init(void)
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{
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return locomo_driver_register(&collie_uart_driver);
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}
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device_initcall(collie_uart_init);
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#endif
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static struct resource locomo_resources[] = {
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[0] = {
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.start = 0x40000000,
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.end = 0x40001fff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIO25,
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.end = IRQ_GPIO25,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct platform_device collie_locomo_device = {
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.name = "locomo",
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.id = 0,
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.num_resources = ARRAY_SIZE(locomo_resources),
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.resource = locomo_resources,
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};
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static struct platform_device *devices[] __initdata = {
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&collie_locomo_device,
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&colliescoop_device,
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};
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static struct mtd_partition collie_partitions[] = {
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{
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.name = "bootloader",
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.offset = 0,
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.size = 0x000C0000,
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.mask_flags = MTD_WRITEABLE
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}, {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x00100000,
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}, {
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x00e20000,
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}
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};
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static int collie_flash_init(void)
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{
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int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
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if (rc)
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return rc;
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rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
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if (rc)
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gpio_free(COLLIE_GPIO_VPEN);
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return rc;
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}
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static void collie_set_vpp(int vpp)
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{
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gpio_set_value(COLLIE_GPIO_VPEN, vpp);
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}
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static void collie_flash_exit(void)
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{
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gpio_free(COLLIE_GPIO_VPEN);
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}
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static struct flash_platform_data collie_flash_data = {
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.map_name = "cfi_probe",
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.init = collie_flash_init,
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.set_vpp = collie_set_vpp,
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.exit = collie_flash_exit,
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.parts = collie_partitions,
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.nr_parts = ARRAY_SIZE(collie_partitions),
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};
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static struct resource collie_flash_resources[] = {
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{
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.start = SA1100_CS0_PHYS,
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.end = SA1100_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static void __init collie_init(void)
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{
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int ret = 0;
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/* cpu initialize */
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GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
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GPIO_MCP_CLK | GPIO_32_768kHz;
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GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
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GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
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GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
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COLLIE_GPIO_UCB1x00_RESET | COLLIE_GPIO_nMIC_ON |
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COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
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PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
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PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
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PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
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PWER = COLLIE_GPIO_AC_IN | COLLIE_GPIO_CO | COLLIE_GPIO_ON_KEY |
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COLLIE_GPIO_WAKEUP | COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
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PGSR = COLLIE_GPIO_nREMOCON_ON;
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PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
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PCFR = PCFR_OPDE;
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platform_scoop_config = &collie_pcmcia_config;
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ret = platform_add_devices(devices, ARRAY_SIZE(devices));
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if (ret) {
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printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
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}
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sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
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ARRAY_SIZE(collie_flash_resources));
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sa11x0_set_mcp_data(&collie_mcp_data);
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sharpsl_save_param();
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}
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static struct map_desc collie_io_desc[] __initdata = {
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{ /* 32M main flash (cs0) */
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.virtual = 0xe8000000,
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.pfn = __phys_to_pfn(0x00000000),
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.length = 0x02000000,
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.type = MT_DEVICE
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}, { /* 32M boot flash (cs1) */
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.virtual = 0xea000000,
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.pfn = __phys_to_pfn(0x08000000),
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.length = 0x02000000,
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.type = MT_DEVICE
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}
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};
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static void __init collie_map_io(void)
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{
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sa1100_map_io();
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iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
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#ifdef CONFIG_SHARP_LOCOMO
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sa1100_register_uart_fns(&collie_port_fns);
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#endif
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sa1100_register_uart(0, 3);
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sa1100_register_uart(1, 1);
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}
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MACHINE_START(COLLIE, "Sharp-Collie")
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.phys_io = 0x80000000,
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.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
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.map_io = collie_map_io,
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.init_irq = sa1100_init_irq,
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.timer = &sa1100_timer,
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.init_machine = collie_init,
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MACHINE_END
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