idp.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:3k
- /*
- * linux/arch/arm/mach-pxa/idp.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
- *
- * 2001-09-13: Cliff Brake <cbrake@accelent.com>
- * Initial code
- */
- #include <linux/init.h>
- #include <linux/major.h>
- #include <linux/fs.h>
- #include <linux/interrupt.h>
- #include <linux/sched.h>
- #include <asm/types.h>
- #include <asm/setup.h>
- #include <asm/memory.h>
- #include <asm/mach-types.h>
- #include <asm/hardware.h>
- #include <asm/irq.h>
- #include <asm/mach/arch.h>
- #include <asm/mach/map.h>
- #include <asm/mach/irq.h>
- #include <asm/arch/irq.h>
- #include "generic.h"
- #define PXA_IDP_REV02
- #ifndef PXA_IDP_REV02
- /* shadow registers for write only registers */
- unsigned int idp_cpld_led_control_shadow = 0x1;
- unsigned int idp_cpld_periph_pwr_shadow = 0xd;
- unsigned int ipd_cpld_cir_shadow = 0;
- unsigned int idp_cpld_kb_col_high_shadow = 0;
- unsigned int idp_cpld_kb_col_low_shadow = 0;
- unsigned int idp_cpld_pccard_en_shadow = 0xC3;
- unsigned int idp_cpld_gpioh_dir_shadow = 0;
- unsigned int idp_cpld_gpioh_value_shadow = 0;
- unsigned int idp_cpld_gpiol_dir_shadow = 0;
- unsigned int idp_cpld_gpiol_value_shadow = 0;
- /*
- * enable all LCD signals -- they should still be on
- * write protect flash
- * enable all serial port transceivers
- */
- unsigned int idp_control_port_shadow = ((0x7 << 21) | /* LCD power */
- (0x1 << 19) | /* disable flash write enable */
- (0x7 << 9)); /* enable serial port transeivers */
- #endif
- static int __init idp_init(void)
- {
- printk("idp_init()n");
- return 0;
- }
- __initcall(idp_init);
- static void __init idp_init_irq(void)
- {
- pxa_init_irq();
- }
- static void __init
- fixup_idp(struct machine_desc *desc, struct param_struct *params,
- char **cmdline, struct meminfo *mi)
- {
- #ifdef PXA_IDP_REV02
- SET_BANK (0, 0xa0000000, 64*1024*1024);
- #else
- SET_BANK (0, 0xa0000000, 32*1024*1024);
- #endif
- mi->nr_banks = 1;
- #if 0
- setup_ramdisk (1, 0, 0, 8192);
- setup_initrd (__phys_to_virt(0xa1000000), 4*1024*1024);
- ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
- #endif
- }
- static struct map_desc idp_io_desc[] __initdata = {
- /* virtual physical length domain r w c b */
- #ifndef PXA_IDP_REV02
- { IDP_CTRL_PORT_BASE,
- IDP_CTRL_PORT_PHYS,
- IDP_CTRL_PORT_SIZE,
- DOMAIN_IO,
- 0, 1, 0, 0 },
- #endif
- { IDP_IDE_BASE,
- IDP_IDE_PHYS,
- IDP_IDE_SIZE,
- DOMAIN_IO,
- 0, 1, 0, 0 },
- { IDP_ETH_BASE,
- IDP_ETH_PHYS,
- IDP_ETH_SIZE,
- DOMAIN_IO,
- 0, 1, 0, 0 },
- { IDP_COREVOLT_BASE,
- IDP_COREVOLT_PHYS,
- IDP_COREVOLT_SIZE,
- DOMAIN_IO,
- 0, 1, 0, 0 },
- { IDP_CPLD_BASE,
- IDP_CPLD_PHYS,
- IDP_CPLD_SIZE,
- DOMAIN_IO,
- 0, 1, 0, 0 },
-
- LAST_DESC
- };
- static void __init idp_map_io(void)
- {
- pxa_map_io();
- iotable_init(idp_io_desc);
- set_GPIO_IRQ_edge(IRQ_TO_GPIO_2_80(TOUCH_PANEL_IRQ), TOUCH_PANEL_IRQ_EDGE);
- }
- MACHINE_START(PXA_IDP, "Accelent Xscale IDP")
- MAINTAINER("Accelent Systems Inc.")
- BOOT_MEM(0xa0000000, 0x40000000, 0xfc000000)
- FIXUP(fixup_idp)
- MAPIO(idp_map_io)
- INITIRQ(idp_init_irq)
- MACHINE_END