mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-30 13:34:27 -04:00
2ecc413107
Since Linux 4.6, mtd->priv no longer points to the NAND specific
structure. Under 4.9 it contains NULL, thus using it to access
the fields of the nand_chip structure causes an invalid pointer
dereference.
Update the code to use the mtd_to_nand() helper under 4.9 to obtain
the address of the chip specific data.
Compile tested only.
Fixes: 7bbf4117c6 ("ar71xx: Add kernel 4.9 support")
Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
Tested-by: Christian Lamparter <chunkeey@gmail.com>
261 lines
6.0 KiB
C
261 lines
6.0 KiB
C
/*
|
|
* AirTight Networks C-60 board support
|
|
*
|
|
* Copyright (C) 2016 Christian Lamparter <chunkeey@googlemail.com>
|
|
*
|
|
* Based on AirTight Networks C-55 board support
|
|
*
|
|
* Copyright (C) 2014-2015 Chris Blake <chrisrblake93@gmail.com>
|
|
*
|
|
* 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/pci.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/nand.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/platform/ar934x_nfc.h>
|
|
#include <linux/ar8216_platform.h>
|
|
#include <linux/ath9k_platform.h>
|
|
#include <linux/version.h>
|
|
|
|
#include <asm/mach-ath79/ar71xx_regs.h>
|
|
|
|
#include "common.h"
|
|
#include "pci.h"
|
|
#include "dev-ap9x-pci.h"
|
|
#include "dev-eth.h"
|
|
#include "dev-gpio-buttons.h"
|
|
#include "dev-leds-gpio.h"
|
|
#include "dev-m25p80.h"
|
|
#include "dev-spi.h"
|
|
#include "dev-wmac.h"
|
|
#include "dev-usb.h"
|
|
#include "dev-nfc.h"
|
|
#include "machtypes.h"
|
|
|
|
#define C60_GPIO_LED_PWR_AMBER 11
|
|
#define C60_GPIO_LED_WLAN2_GREEN 12
|
|
#define C60_GPIO_LED_WLAN2_AMBER 13
|
|
#define C60_GPIO_LED_PWR_GREEN 16
|
|
|
|
#define C60_GPIO_BTN_RESET 17
|
|
|
|
/* GPIOs of the AR9300 PCIe chip */
|
|
#define C60_GPIO_WMAC_LED_WLAN1_AMBER 0
|
|
#define C60_GPIO_WMAC_LED_WLAN1_GREEN 3
|
|
|
|
#define C60_KEYS_POLL_INTERVAL 20 /* msecs */
|
|
#define C60_KEYS_DEBOUNCE_INTERVAL (3 * C60_KEYS_POLL_INTERVAL)
|
|
|
|
#define C60_ART_ADDR 0x1f7f0000
|
|
#define C60_ART_SIZE 0xffff
|
|
#define C60_MAC_OFFSET 0
|
|
#define C60_WMAC_CALDATA_OFFSET 0x1000
|
|
#define C60_PCIE_CALDATA_OFFSET 0x5000
|
|
|
|
static struct gpio_led c60_leds_gpio[] __initdata = {
|
|
{
|
|
.name = "c-60:amber:pwr",
|
|
.gpio = C60_GPIO_LED_PWR_AMBER,
|
|
.active_low = 1,
|
|
},
|
|
{
|
|
.name = "c-60:green:pwr",
|
|
.gpio = C60_GPIO_LED_PWR_GREEN,
|
|
.active_low = 1,
|
|
},
|
|
{
|
|
.name = "c-60:green:wlan2",
|
|
.gpio = C60_GPIO_LED_WLAN2_GREEN,
|
|
.active_low = 1,
|
|
},
|
|
{
|
|
.name = "c-60:amber:wlan2",
|
|
.gpio = C60_GPIO_LED_WLAN2_AMBER,
|
|
.active_low = 1,
|
|
},
|
|
};
|
|
|
|
static struct gpio_keys_button c60_gpio_keys[] __initdata = {
|
|
{
|
|
.desc = "Reset button",
|
|
.type = EV_KEY,
|
|
.code = KEY_RESTART,
|
|
.debounce_interval = C60_KEYS_DEBOUNCE_INTERVAL,
|
|
.gpio = C60_GPIO_BTN_RESET,
|
|
.active_low = 1,
|
|
},
|
|
};
|
|
|
|
static struct ar8327_pad_cfg c60_ar8327_pad0_cfg = {
|
|
.mode = AR8327_PAD_MAC_RGMII,
|
|
.txclk_delay_en = true,
|
|
.rxclk_delay_en = true,
|
|
.txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
|
|
.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
|
|
};
|
|
|
|
static struct ar8327_platform_data c60_ar8327_data = {
|
|
.pad0_cfg = &c60_ar8327_pad0_cfg,
|
|
.port0_cfg = {
|
|
.force_link = 1,
|
|
.speed = AR8327_PORT_SPEED_1000,
|
|
.duplex = 1,
|
|
.txpause = 1,
|
|
.rxpause = 1,
|
|
}
|
|
};
|
|
|
|
static struct mdio_board_info c60_mdio0_info[] = {
|
|
{
|
|
.bus_id = "ag71xx-mdio.0",
|
|
.phy_addr = 0,
|
|
.platform_data = &c60_ar8327_data,
|
|
},
|
|
};
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
|
|
static struct nand_ecclayout c60_nand_ecclayout = {
|
|
.eccbytes = 7,
|
|
.eccpos = { 4, 8, 9, 10, 13, 14, 15 },
|
|
.oobavail = 9,
|
|
.oobfree = { { 0, 3 }, { 6, 2 }, { 11, 2 }, }
|
|
};
|
|
|
|
#else
|
|
|
|
static int c60_ooblayout_ecc(struct mtd_info *mtd, int section,
|
|
struct mtd_oob_region *oobregion)
|
|
{
|
|
switch (section) {
|
|
case 0:
|
|
oobregion->offset = 4;
|
|
oobregion->length = 1;
|
|
return 0;
|
|
case 1:
|
|
oobregion->offset = 8;
|
|
oobregion->length = 3;
|
|
return 0;
|
|
case 2:
|
|
oobregion->offset = 13;
|
|
oobregion->length = 3;
|
|
return 0;
|
|
default:
|
|
return -ERANGE;
|
|
}
|
|
}
|
|
|
|
static int c60_ooblayout_free(struct mtd_info *mtd, int section,
|
|
struct mtd_oob_region *oobregion)
|
|
{
|
|
switch (section) {
|
|
case 0:
|
|
oobregion->offset = 0;
|
|
oobregion->length = 3;
|
|
return 0;
|
|
case 1:
|
|
oobregion->offset = 6;
|
|
oobregion->length = 2;
|
|
return 0;
|
|
case 2:
|
|
oobregion->offset = 11;
|
|
oobregion->length = 2;
|
|
return 0;
|
|
default:
|
|
return -ERANGE;
|
|
}
|
|
}
|
|
|
|
static const struct mtd_ooblayout_ops c60_nand_ecclayout_ops = {
|
|
.ecc = c60_ooblayout_ecc,
|
|
.free = c60_ooblayout_free,
|
|
};
|
|
#endif /* < 4.6 */
|
|
|
|
static int c60_nand_scan_fixup(struct mtd_info *mtd)
|
|
{
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
|
|
struct nand_chip *chip = mtd->priv;
|
|
#else
|
|
struct nand_chip *chip = mtd_to_nand(mtd);
|
|
#endif
|
|
|
|
chip->ecc.size = 512;
|
|
chip->ecc.strength = 4;
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
|
|
chip->ecc.layout = &c60_nand_ecclayout;
|
|
#else
|
|
mtd_set_ooblayout(mtd, &c60_nand_ecclayout_ops);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static struct gpio_led c60_wmac0_leds_gpio[] = {
|
|
{
|
|
.name = "c-60:amber:wlan1",
|
|
.gpio = C60_GPIO_WMAC_LED_WLAN1_AMBER,
|
|
.active_low = 1,
|
|
},
|
|
{
|
|
.name = "c-60:green:wlan1",
|
|
.gpio = C60_GPIO_WMAC_LED_WLAN1_GREEN,
|
|
.active_low = 1,
|
|
},
|
|
};
|
|
|
|
static void __init c60_setup(void)
|
|
{
|
|
u8 tmpmac[6];
|
|
u8 *art = (u8 *) KSEG1ADDR(C60_ART_ADDR);
|
|
|
|
/* NAND */
|
|
ath79_nfc_set_ecc_mode(AR934X_NFC_ECC_SOFT_BCH);
|
|
ath79_nfc_set_scan_fixup(c60_nand_scan_fixup);
|
|
ath79_register_nfc();
|
|
|
|
/* SPI Storage*/
|
|
ath79_register_m25p80(NULL);
|
|
|
|
/* AR8327 Switch Ethernet */
|
|
|
|
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
|
|
|
|
mdiobus_register_board_info(c60_mdio0_info,
|
|
ARRAY_SIZE(c60_mdio0_info));
|
|
|
|
ath79_register_mdio(0, 0x0);
|
|
|
|
/* GMAC0 is connected to an AR8327N switch */
|
|
ath79_init_mac(ath79_eth0_data.mac_addr, art + C60_MAC_OFFSET, 0);
|
|
ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
|
|
ath79_eth0_data.phy_mask = BIT(0);
|
|
ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
|
|
ath79_eth0_pll_data.pll_1000 = 0x06000000;
|
|
ath79_register_eth(0);
|
|
|
|
/* LEDs & GPIO */
|
|
ath79_register_leds_gpio(-1, ARRAY_SIZE(c60_leds_gpio),
|
|
c60_leds_gpio);
|
|
ath79_register_gpio_keys_polled(-1, C60_KEYS_POLL_INTERVAL,
|
|
ARRAY_SIZE(c60_gpio_keys),
|
|
c60_gpio_keys);
|
|
ap9x_pci_setup_wmac_leds(0, c60_wmac0_leds_gpio,
|
|
ARRAY_SIZE(c60_wmac0_leds_gpio));
|
|
/* USB */
|
|
ath79_register_usb();
|
|
|
|
/* WiFi */
|
|
ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 1);
|
|
ap91_pci_init(art + C60_PCIE_CALDATA_OFFSET, tmpmac);
|
|
ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 2);
|
|
ath79_register_wmac(art + C60_WMAC_CALDATA_OFFSET, tmpmac);
|
|
}
|
|
MIPS_MACHINE(ATH79_MACH_C60, "C-60", "AirTight Networks C-60",
|
|
c60_setup);
|