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Jx2410上进行linux2.6.14内核的全移植过程，实践证明成功(附录)
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mach-smdk2410.c
/***********************************************************************
*
* linux/arch/arm/mach-s3c2410/mach-smdk2410.c
*
* Copyright (C) 2004 by FS Forth-Systeme GmbH
* All rights reserved.
*
* $Id: mach-smdk2410.c,v 1.1 2004/05/11 14:15:38 mpietrek Exp $
* @Author: Jonas Dietsche
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* @History:
* derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
* Ben Dooks <ben@simtec.co.uk>
*
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
* 20-Sep-2005 BJD Added static to non-exported items
*
***********************************************************************/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/arch/regs-serial.h>
/********************gggggggggggggggggggggg************************************/
#include <asm-arm/setup.h>
#include <linux/initrd.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <asm-arm/arch-s3c2410/fb.h>
//#include <asm-arm/mach/map.h>
//#include <asm-arm/arch-s3c2410/gggggg.h>
//**********************end ***************************************************/
#include "devs.h"
#include "cpu.h"
static struct map_desc smdk2410_iodesc[] __initdata = {
/* nothing here yet */
};
#define UCON S3C2410_UCON_DEFAULT
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
/*****************added---gggggggggggggg***************************************/
extern dev_t ROOT_DEV;
extern unsigned long initrd_start ,initrd_end;
extern void __init setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz);
void __init setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)
{
/* #ifdef CONFIG_BLK_DEV_RAM*/
extern int rd_size, rd_image_start, rd_prompt, rd_doload;
rd_image_start = image_start;
rd_prompt = prompt;
rd_doload = doload;
if (rd_sz)
rd_size = rd_sz;
/* #endif*/
}
static void __init setup_initrd(unsigned int start, unsigned int size)
{
#ifdef CONFIG_BLK_DEV_INITRD
if (start == 0)
size = 0;
initrd_start = start;
initrd_end = start + size;
#endif
}
static void __init fixup_smdk(struct machine_desc *desc, struct param_struct *params, char **cmdline, struct meminfo *mi)
{
/* TODO */
#if 0 /* hacked by nandy. Is these codes need ? */
struct tag *t = (struct tag *)params;
if (t->hdr.tag != ATAG_CORE)
convert_to_tag_list(params, 1);
if (t->hdr.tag != ATAG_CORE) {
t->hdr.tag = ATAG_CORE;
t = tag_next(t);
t->hdr.tag = ATAG_MEM;
t->u.mem.start = 0x0c000000;
t->u.mem.size = 32 * 1024 * 1024;
}
#endif
#if 1 /* used in asm/kernel/setup.c and asm/arch/arch.c */
#define S3C2410_MEM_SIZE (64*1024*1024)
#define PA_SDRAM_BASE 0x30000000 /* used in asm/arch/arch.c */
#define RAMDISK_DN_ADDR 0x30800000 /* used in asm/arch/arch.c */
#define ZIP_RAMDISK_SIZE (10*1024*1024) /* used in asm/arch/arch.c */
/* setup ramdisk */
mi->bank[0].start = PA_SDRAM_BASE;
mi->bank[0].size = S3C2410_MEM_SIZE;
mi->bank[0].node = 0;
mi->nr_banks = 1;
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
#ifdef CONFIG_BLK_DEV_RAM_SIZE
setup_ramdisk( 1, 0, 0, CONFIG_BLK_DEV_RAM_SIZE);
#else
setup_ramdisk( 1, 0, 0, BLK_DEV_RAM_SIZE);
#endif
setup_initrd( __phys_to_virt(RAMDISK_DN_ADDR), ZIP_RAMDISK_SIZE);
#endif
}
/***************************************ggggggggggggggg****************************/
/********************lcd ggggggggggggggggggggggggggg*******************************/
static struct s3c2410fb_mach_info gggggg_lcdcfg __initdata = {
.fixed_syncs= 0,
.regs={
.lcdcon1= S3C2410_LCDCON1_TFT16BPP | S3C2410_LCDCON1_TFT | S3C2410_LCDCON1_CLKVAL(2),
.lcdcon2= S3C2410_LCDCON2_VBPD(10) | S3C2410_LCDCON2_LINEVAL(479) | S3C2410_LCDCON2_VFPD(25) | S3C2410_LCDCON2_VSPW(30),
.lcdcon3= S3C2410_LCDCON3_HBPD(2) | S3C2410_LCDCON3_HOZVAL(639) | S3C2410_LCDCON3_HFPD(4),
.lcdcon4= S3C2410_LCDCON4_MVAL(13) | S3C2410_LCDCON4_HSPW(79),
.lcdcon5= S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_HWSWP,
},
.lpcsel= 0x0,
.gpccon= 0xaaaaaaaa,
.gpccon_mask= 0xffffffff,
.gpcup= 0xffffffff,
.gpcup_mask= 0xffffffff,
.gpdcon= 0xaaaaaaaa,
.gpdcon_mask= 0x0,
.gpdup= 0xffffffff,
.gpdup_mask= 0xffffffff,
.width= 640,
.height= 480,
.xres= {640,640,640},
.yres= {480,480,480},
.bpp= {16,16,16},
};
static void __init smdk2410_init(void){
set_s3c2410fb_info(&gggggg_lcdcfg);
}
/**********************end gggggggggggggg**********************************************/
static struct s3c2410_uartcfg smdk2410_uartcfgs[] = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[2] = {
.hwport = 2,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
}
};
static struct platform_device *smdk2410_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c,
&s3c_device_iis,
&s3c_device_nand,
};
static struct s3c24xx_board smdk2410_board __initdata = {
.devices = smdk2410_devices,
.devices_count = ARRAY_SIZE(smdk2410_devices)
};
static void __init smdk2410_map_io(void)
{
s3c24xx_init_io(smdk2410_iodesc, ARRAY_SIZE(smdk2410_iodesc));
s3c24xx_init_clocks(0);
s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs));
s3c24xx_set_board(&smdk2410_board);
}
static void __init smdk2410_init_irq(void)
{
s3c24xx_init_irq();
}
MACHINE_START(SMDK2410, "SMDK2410" /* @TODO: request a new identifier and switch
* to SMDK2410 */
/* Maintainer: Jonas Dietsche */
.phys_ram = S3C2410_SDRAM_PA,
.phys_io = S3C2410_PA_UART,
.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 1 & 0xfffc,
.boot_params = S3C2410_SDRAM_PA + 0x100,
.map_io = smdk2410_map_io,
.init_irq = smdk2410_init_irq,
.timer = &s3c24xx_timer,
/*******************added gggggggggggggg****************************/
.fixup = fixup_smdk,
.init_machine = smdk2410_init,
MACHINE_END
s3c2410.c
/*
* Copyright ?2001 Flaga hf. Medical Devices, K醨i Dav眇sson <kd@flaga.is>
*
* $Id: cfi_flagadm.c,v 1.14 2004/11/04 13:24:14 gleixner Exp $
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
/* We split the flash chip up into four parts.
* 1: bootloader firts 128k (0x00000000 - 0x0001FFFF) size 0x020000
* 2: kernel 640k (0x00020000 - 0x000BFFFF) size 0x0A0000
* 3: compressed 1536k root ramdisk (0x000C0000 - 0x0023FFFF) size 0x180000
* 4: writeable diskpartition (jffs)(0x00240000 - 0x003FFFFF) size 0x1C0000
*/
/*######################modified according to jx2410*/
#define FLASH_PHYS_ADDR 0x0
#define FLASH_SIZE 0x02000000
#define FLASH_PARTITION0_ADDR 0x0000000
#define FLASH_PARTITION0_SIZE 0x00080000
#define FLASH_PARTITION1_ADDR 0x00080000
#define FLASH_PARTITION1_SIZE (0x00800000-0x00080000)
#define FLASH_PARTITION2_ADDR 0x00800000
#define FLASH_PARTITION2_SIZE (0x02000000-0x00800000)
#define FLASH_PARTITION3_ADDR 0x02000000
#define FLASH_PARTITION3_SIZE 0x0
struct map_info gggggg_map = {
.name = "gggggg flash device",
.size = FLASH_SIZE,
.bankwidth = 4,
};
struct mtd_partition gggggg_parts[] = {
{
.name = "Bootloader",
.offset = FLASH_PARTITION0_ADDR,
.size = FLASH_PARTITION0_SIZE
},
{
.name = "jffs2(8m)",
.offset = FLASH_PARTITION1_ADDR,
.size = FLASH_PARTITION1_SIZE
},
{
.name = "reserved",
.offset = FLASH_PARTITION2_ADDR,
.size = FLASH_PARTITION2_SIZE
},
{
.name = "nothing",
.offset = FLASH_PARTITION3_ADDR,
.size = FLASH_PARTITION3_SIZE
}
};
#define PARTITION_COUNT (sizeof(gggggg_parts)/sizeof(struct mtd_partition))
static struct mtd_info *mymtd;
int __init init_gggggg(void)
{
printk(KERN_NOTICE "S3C2410-gggggg flash device: %x at %x\n",
FLASH_SIZE, FLASH_PHYS_ADDR);
gggggg_map.phys = FLASH_PHYS_ADDR;
gggggg_map.virt = ioremap(FLASH_PHYS_ADDR,
FLASH_SIZE);
if (!gggggg_map.virt) {
printk("Failed to ioremap\n";
return -EIO;
}
simple_map_init(&gggggg_map);
mymtd = do_map_probe("cfi_probe", &gggggg_map);
if (mymtd) {
mymtd->owner = THIS_MODULE;
add_mtd_partitions(mymtd, gggggg_parts, PARTITION_COUNT);
printk(KERN_NOTICE "S3C2410-gggggg flash device initialized\n";
return 0;
}
iounmap((void *)gggggg_map.virt);
return -ENXIO;
}
static void __exit cleanup_gggggg(void)
{
if (mymtd) {
del_mtd_partitions(mymtd);
map_destroy(mymtd);
}
if (gggggg_map.virt) {
iounmap((void *)gggggg_map.virt);
gggggg_map.virt = 0;
}
}
module_init(init_gggggg);
module_exit(cleanup_gggggg);
MODULE_LICENSE("GPL";
MODULE_AUTHOR("K醨i Dav眇sson <kd@flaga.is>";
MODULE_DESCRIPTION("MTD map driver for S3C2410 digital module"; |
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发表于 2008-08-02 09:29
seudo filesystems"