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/arch/arm/mach-sa1100/collie.c

https://bitbucket.org/evzijst/gittest
C | 192 lines | 144 code | 28 blank | 20 comment | 3 complexity | 4f1b26fbc1f5352826acaa71839fc0fd MD5 | raw file
  1/*
  2 * linux/arch/arm/mach-sa1100/collie.c
  3 *
  4 * May be copied or modified under the terms of the GNU General Public
  5 * License.  See linux/COPYING for more information.
  6 *
  7 * This file contains all Collie-specific tweaks.
  8 *
  9 * This program is free software; you can redistribute it and/or modify
 10 * it under the terms of the GNU General Public License version 2 as
 11 * published by the Free Software Foundation.
 12 *
 13 * ChangeLog:
 14 *  03-06-2004 John Lenz <jelenz@wisc.edu>
 15 *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
 16 *  04-16-2001 Lineo Japan,Inc. ...
 17 */
 18
 19#include <linux/config.h>
 20#include <linux/init.h>
 21#include <linux/kernel.h>
 22#include <linux/tty.h>
 23#include <linux/delay.h>
 24#include <linux/device.h>
 25#include <linux/mtd/mtd.h>
 26#include <linux/mtd/partitions.h>
 27#include <linux/timer.h>
 28
 29#include <asm/hardware.h>
 30#include <asm/mach-types.h>
 31#include <asm/irq.h>
 32#include <asm/setup.h>
 33#include <asm/arch/collie.h>
 34
 35#include <asm/mach/arch.h>
 36#include <asm/mach/flash.h>
 37#include <asm/mach/map.h>
 38#include <asm/mach/serial_sa1100.h>
 39
 40#include <asm/hardware/scoop.h>
 41#include <asm/mach/sharpsl_param.h>
 42#include <asm/hardware/locomo.h>
 43
 44#include "generic.h"
 45
 46static struct resource collie_scoop_resources[] = {
 47	[0] = {
 48		.start		= 0x40800000,
 49		.end		= 0x40800fff,
 50		.flags		= IORESOURCE_MEM,
 51	},
 52};
 53
 54static struct scoop_config collie_scoop_setup = {
 55	.io_dir 	= COLLIE_SCOOP_IO_DIR,
 56	.io_out		= COLLIE_SCOOP_IO_OUT,
 57};
 58
 59struct platform_device colliescoop_device = {
 60	.name		= "sharp-scoop",
 61	.id		= -1,
 62	.dev		= {
 63 		.platform_data	= &collie_scoop_setup,
 64	},
 65	.num_resources	= ARRAY_SIZE(collie_scoop_resources),
 66	.resource	= collie_scoop_resources,
 67};
 68
 69
 70static struct resource locomo_resources[] = {
 71	[0] = {
 72		.start		= 0x40000000,
 73		.end		= 0x40001fff,
 74		.flags		= IORESOURCE_MEM,
 75	},
 76	[1] = {
 77		.start		= IRQ_GPIO25,
 78		.end		= IRQ_GPIO25,
 79		.flags		= IORESOURCE_IRQ,
 80	},
 81};
 82
 83static struct platform_device locomo_device = {
 84	.name		= "locomo",
 85	.id		= 0,
 86	.num_resources	= ARRAY_SIZE(locomo_resources),
 87	.resource	= locomo_resources,
 88};
 89
 90static struct platform_device *devices[] __initdata = {
 91	&locomo_device,
 92	&colliescoop_device,
 93};
 94
 95static struct mtd_partition collie_partitions[] = {
 96	{
 97		.name		= "bootloader",
 98		.offset 	= 0,
 99		.size		= 0x000C0000,
100		.mask_flags	= MTD_WRITEABLE
101	}, {
102		.name		= "kernel",
103		.offset 	= MTDPART_OFS_APPEND,
104		.size		= 0x00100000,
105	}, {
106		.name		= "rootfs",
107		.offset 	= MTDPART_OFS_APPEND,
108		.size		= 0x00e20000,
109	}
110};
111
112static void collie_set_vpp(int vpp)
113{
114	write_scoop_reg(SCOOP_GPCR, read_scoop_reg(SCOOP_GPCR) | COLLIE_SCP_VPEN);
115	if (vpp) {
116		write_scoop_reg(SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) | COLLIE_SCP_VPEN);
117	} else {
118		write_scoop_reg(SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
119	}
120}
121
122static struct flash_platform_data collie_flash_data = {
123	.map_name	= "cfi_probe",
124	.set_vpp	= collie_set_vpp,
125	.parts		= collie_partitions,
126	.nr_parts	= ARRAY_SIZE(collie_partitions),
127};
128
129static struct resource collie_flash_resources[] = {
130	{
131		.start	= SA1100_CS0_PHYS,
132		.end	= SA1100_CS0_PHYS + SZ_32M - 1,
133		.flags	= IORESOURCE_MEM,
134	}
135};
136
137static void __init collie_init(void)
138{
139	int ret = 0;
140
141	/* cpu initialize */
142	GAFR = ( GPIO_SSP_TXD | \
143		 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
144		 GPIO_32_768kHz );
145
146	GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
147		 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
148		 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
149		 GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
150	GPLR = GPIO_GPIO18;
151
152	// PPC pin setting
153	PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
154		 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
155	 	 PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
156
157	PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
158
159	GAFR |= GPIO_32_768kHz;
160	GPDR |= GPIO_32_768kHz;
161	TUCR  = TUCR_32_768kHz;
162
163	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
164	if (ret) {
165		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
166	}
167
168	sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
169			      ARRAY_SIZE(collie_flash_resources));
170
171	sharpsl_save_param();
172}
173
174static struct map_desc collie_io_desc[] __initdata = {
175	/* virtual     physical    length      type */
176	{0xe8000000, 0x00000000, 0x02000000, MT_DEVICE},	/* 32M main flash (cs0) */
177	{0xea000000, 0x08000000, 0x02000000, MT_DEVICE},	/* 32M boot flash (cs1) */
178};
179
180static void __init collie_map_io(void)
181{
182	sa1100_map_io();
183	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
184}
185
186MACHINE_START(COLLIE, "Sharp-Collie")
187	BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
188	MAPIO(collie_map_io)
189	INITIRQ(sa1100_init_irq)
190	.timer		= &sa1100_timer,
191	.init_machine	= collie_init,
192MACHINE_END