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ar71xx: register the NAND controller device on the RB2011

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33388 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2012-09-13 07:26:26 +00:00
parent 39bdbbc7fc
commit e9a522de9e
4 changed files with 83 additions and 3 deletions
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77
target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
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@@ -12,15 +12,18 @@
#define pr_fmt(fmt) "rb2011: " fmt
#include <linux/phy.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/rle.h>
#include <linux/routerboot.h>
#include <linux/gpio.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>
@@ -28,10 +31,13 @@
#include "common.h"
#include "dev-eth.h"
#include "dev-m25p80.h"
#include "dev-nfc.h"
#include "dev-wmac.h"
#include "machtypes.h"
#include "routerboot.h"
#define RB2011_GPIO_NAND_NCE 14
#define RB_ROUTERBOOT_OFFSET 0x0000
#define RB_ROUTERBOOT_SIZE 0xb000
#define RB_HARD_CFG_OFFSET 0xb000
@@ -66,6 +72,25 @@ static struct mtd_partition rb2011_spi_partitions[] = {
}
};
static struct mtd_partition rb2011_nand_partitions[] = {
{
.name = "booter",
.offset = 0,
.size = (256 * 1024),
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.offset = (256 * 1024),
.size = (4 * 1024 * 1024) - (256 * 1024),
},
{
.name = "rootfs",
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL,
},
};
static struct flash_platform_data rb2011_spi_flash_data = {
.parts = rb2011_spi_partitions,
.nr_parts = ARRAY_SIZE(rb2011_spi_partitions),
@@ -151,9 +176,61 @@ free:
kfree(art_buf);
}
static void rb2011_nand_select_chip(int chip_no)
{
switch (chip_no) {
case 0:
gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
break;
default:
gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
break;
}
ndelay(500);
}
static struct nand_ecclayout rb2011_nand_ecclayout = {
.eccbytes = 6,
.eccpos = { 8, 9, 10, 13, 14, 15 },
.oobavail = 9,
.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
};
static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
if (mtd->writesize == 512) {
/*
* Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
* will not be able to find the kernel that we load.
*/
chip->ecc.layout = &rb2011_nand_ecclayout;
}
return 0;
}
static void __init rb2011_nand_init(void)
{
ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
ath79_nfc_set_parts(rb2011_nand_partitions,
ARRAY_SIZE(rb2011_nand_partitions));
ath79_nfc_set_select_chip(rb2011_nand_select_chip);
ath79_register_nfc();
}
static void __init rb2011_gpio_init(void)
{
gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
}
static void __init rb2011_setup(void)
{
rb2011_gpio_init();
ath79_register_m25p80(&rb2011_spi_flash_data);
rb2011_nand_init();
rb2011_gmac_setup();