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yaml
---
r: 117563
b: refs/heads/master
c: 5b50c16
h: refs/heads/master
i:
  117561: c25a7ed
  117559: d0da66e
v: v3
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Mark Jackson authored and Haavard Skinnemoen committed Oct 13, 2008
1 parent 51c61e5 commit b0b6fcc
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Showing 7 changed files with 467 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 198f29358a31cdca1a496d19da90bd5d6c8527ce
refs/heads/master: 5b50c166b79ffa0a2e3b0f3785fa5263685a81f2
4 changes: 4 additions & 0 deletions trunk/arch/avr32/Kconfig
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Expand Up @@ -123,6 +123,10 @@ config BOARD_ATNGW100
config BOARD_FAVR_32
bool "Favr-32 LCD-board"
select CPU_AT32AP7000

config BOARD_MIMC200
bool "MIMC200 CPU board"
select CPU_AT32AP7000
endchoice

source "arch/avr32/boards/atstk1000/Kconfig"
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1 change: 1 addition & 0 deletions trunk/arch/avr32/Makefile
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Expand Up @@ -34,6 +34,7 @@ core-y += $(machdirs)
core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
core-$(CONFIG_BOARD_FAVR_32) += arch/avr32/boards/favr-32/
core-$(CONFIG_BOARD_MIMC200) += arch/avr32/boards/mimc200/
core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
core-y += arch/avr32/kernel/
core-y += arch/avr32/mm/
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1 change: 1 addition & 0 deletions trunk/arch/avr32/boards/mimc200/Makefile
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obj-y += setup.o flash.o fram.o
143 changes: 143 additions & 0 deletions trunk/arch/avr32/boards/mimc200/flash.c
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/*
* MIMC200 board-specific flash initialization
*
* Copyright (C) 2008 Mercury IMC Ltd
*
* 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.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>

#include <mach/smc.h>

static struct smc_timing flash_timing __initdata = {
.ncs_read_setup = 0,
.nrd_setup = 15,
.ncs_write_setup = 0,
.nwe_setup = 0,

.ncs_read_pulse = 115,
.nrd_pulse = 110,
.ncs_write_pulse = 60,
.nwe_pulse = 60,

.read_cycle = 115,
.write_cycle = 100,
};

static struct smc_config flash_config __initdata = {
.bus_width = 2,
.nrd_controlled = 1,
.nwe_controlled = 1,
.byte_write = 1,
};

/* system flash definition */

static struct mtd_partition flash_parts_system[] = {
{
.name = "u-boot",
.offset = 0x00000000,
.size = 0x00020000, /* 128 KiB */
.mask_flags = MTD_WRITEABLE,
},
{
.name = "root",
.offset = 0x00020000,
.size = 0x007c0000,
},
{
.name = "splash",
.offset = 0x007e0000,
.size = 0x00010000, /* 64KiB */
},
{
.name = "env",
.offset = 0x007f0000,
.size = 0x00010000,
.mask_flags = MTD_WRITEABLE,
},
};

static struct physmap_flash_data flash_system = {
.width = 2,
.nr_parts = ARRAY_SIZE(flash_parts_system),
.parts = flash_parts_system,
};

static struct resource flash_resource_system = {
.start = 0x00000000,
.end = 0x007fffff,
.flags = IORESOURCE_MEM,
};

static struct platform_device flash_device_system = {
.name = "physmap-flash",
.id = 0,
.resource = &flash_resource_system,
.num_resources = 1,
.dev = {
.platform_data = &flash_system,
},
};

/* data flash definition */

static struct mtd_partition flash_parts_data[] = {
{
.name = "data",
.offset = 0x00000000,
.size = 0x00800000,
},
};

static struct physmap_flash_data flash_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(flash_parts_data),
.parts = flash_parts_data,
};

static struct resource flash_resource_data = {
.start = 0x08000000,
.end = 0x087fffff,
.flags = IORESOURCE_MEM,
};

static struct platform_device flash_device_data = {
.name = "physmap-flash",
.id = 1,
.resource = &flash_resource_data,
.num_resources = 1,
.dev = {
.platform_data = &flash_data,
},
};

/* This needs to be called after the SMC has been initialized */
static int __init mimc200_flash_init(void)
{
int ret;

smc_set_timing(&flash_config, &flash_timing);
ret = smc_set_configuration(0, &flash_config);
if (ret < 0) {
printk(KERN_ERR "mimc200: failed to set 'System' NOR flash timing\n");
return ret;
}
ret = smc_set_configuration(1, &flash_config);
if (ret < 0) {
printk(KERN_ERR "mimc200: failed to set 'Data' NOR flash timing\n");
return ret;
}

platform_device_register(&flash_device_system);
platform_device_register(&flash_device_data);

return 0;
}
device_initcall(mimc200_flash_init);
80 changes: 80 additions & 0 deletions trunk/arch/avr32/boards/mimc200/fram.c
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/*
* FRAM driver for MIMC200 board
*
* Copyright 2008 Mark Jackson <mpfj@mimc.co.uk>
*
* This module adds *very* simply support for the system's FRAM device.
* At the moment, this is hard-coded to the MIMC200 platform, and only
* supports mmap().
*/

#define FRAM_VERSION "1.0"

#include <linux/miscdevice.h>
#include <linux/proc_fs.h>
#include <linux/mm.h>
#include <linux/io.h>

#define FRAM_BASE 0xac000000
#define FRAM_SIZE 0x20000

/*
* The are the file operation function for user access to /dev/fram
*/

static int fram_mmap(struct file *filp, struct vm_area_struct *vma)
{
int ret;

ret = remap_pfn_range(vma,
vma->vm_start,
virt_to_phys((void *)((unsigned long)FRAM_BASE)) >> PAGE_SHIFT,
vma->vm_end-vma->vm_start,
PAGE_SHARED);

if (ret != 0)
return -EAGAIN;

return 0;
}

static const struct file_operations fram_fops = {
.owner = THIS_MODULE,
.mmap = fram_mmap,
};

#define FRAM_MINOR 0

static struct miscdevice fram_dev = {
FRAM_MINOR,
"fram",
&fram_fops
};

static int __init
fram_init(void)
{
int ret;

ret = misc_register(&fram_dev);
if (ret) {
printk(KERN_ERR "fram: can't misc_register on minor=%d\n",
FRAM_MINOR);
return ret;
}
printk(KERN_INFO "FRAM memory driver v" FRAM_VERSION "\n");
return 0;
}

static void __exit
fram_cleanup_module(void)
{
misc_deregister(&fram_dev);
}

module_init(fram_init);
module_exit(fram_cleanup_module);

MODULE_LICENSE("GPL");

MODULE_ALIAS_MISCDEV(FRAM_MINOR);
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