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/*
* MikroTik RouterBOARD SXT Lite support
*
* Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
* Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2013 Vyacheslav Adamanov <adamanov@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.
*/
#define pr_fmt(fmt) "sxtlite: " fmt
#include <linux/phy.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ath9k_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 <linux/version.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include "common.h"
#include "dev-ap9x-pci.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-eth.h"
#include "dev-m25p80.h"
#include "dev-nfc.h"
#include "dev-wmac.h"
#include "dev-usb.h"
#include "machtypes.h"
#include "routerboot.h"
#include <linux/ar8216_platform.h>
#define SXTLITE_GPIO_NAND_NCE 14
#define SXTLITE_GPIO_LED_USER 3
#define SXTLITE_GPIO_LED_1 13
#define SXTLITE_GPIO_LED_2 12
#define SXTLITE_GPIO_LED_3 4
#define SXTLITE_GPIO_LED_4 21
#define SXTLITE_GPIO_LED_5 18
#define SXTLITE_GPIO_LED_POWER 11
#define SXTLITE_GPIO_BUZZER 19
#define SXTLITE_GPIO_BTN_RESET 15
#define SXTLITE_KEYS_POLL_INTERVAL 20
#define SXTLITE_KEYS_DEBOUNCE_INTERVAL (3 * SXTLITE_KEYS_POLL_INTERVAL)
static struct mtd_partition rbsxtlite_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 = "ubi",
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL,
},
};
static struct gpio_led rbsxtlite_leds_gpio[] __initdata = {
{
.name = "rb:green:user",
.gpio = SXTLITE_GPIO_LED_USER,
.active_low = 1,
},
{
.name = "rb:green:led1",
.gpio = SXTLITE_GPIO_LED_1,
.active_low = 1,
},
{
.name = "rb:green:led2",
.gpio = SXTLITE_GPIO_LED_2,
.active_low = 1,
},
{
.name = "rb:green:led3",
.gpio = SXTLITE_GPIO_LED_3,
.active_low = 1,
},
{
.name = "rb:green:led4",
.gpio = SXTLITE_GPIO_LED_4,
.active_low = 1,
},
{
.name = "rb:green:led5",
.gpio = SXTLITE_GPIO_LED_5,
.active_low = 1,
},
{
.name = "rb:green:power",
.gpio = SXTLITE_GPIO_LED_POWER,
.default_state = LEDS_GPIO_DEFSTATE_KEEP,
},
};
static struct gpio_keys_button rbsxtlite_gpio_keys[] __initdata = {
{
.desc = "Reset button",
.type = EV_KEY,
.code = KEY_RESTART,
.debounce_interval = SXTLITE_KEYS_DEBOUNCE_INTERVAL,
.gpio = SXTLITE_GPIO_BTN_RESET,
.active_low = 0,
},
};
static int __init rbsxtlite_rbinfo_init(void)
{
const struct rb_info *info;
info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x10000);
if (!info)
return -EINVAL;
return 0;
}
void __init rbsxtlite_wlan_init(void)
{
char *art_buf;
u8 wlan_mac[ETH_ALEN];
art_buf = rb_get_wlan_data();
if (art_buf == NULL)
return;
ath79_init_mac(wlan_mac, ath79_mac_base, 1);
ath79_register_wmac(art_buf + 0x1000, wlan_mac);
kfree(art_buf);
}
static void rbsxtlite_nand_select_chip(int chip_no)
{
switch (chip_no) {
case 0:
gpio_set_value(SXTLITE_GPIO_NAND_NCE, 0);
break;
default:
gpio_set_value(SXTLITE_GPIO_NAND_NCE, 1);
break;
}
ndelay(500);
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
static struct nand_ecclayout rbsxtlite_nand_ecclayout = {
.eccbytes = 6,
.eccpos = { 8, 9, 10, 13, 14, 15 },
.oobavail = 9,
.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
};
#else
static int rbsxtlite_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
switch (section) {
case 0:
oobregion->offset = 8;
oobregion->length = 3;
return 0;
case 1:
oobregion->offset = 13;
oobregion->length = 3;
return 0;
default:
return -ERANGE;
}
}
static int rbsxtlite_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
switch (section) {
case 0:
oobregion->offset = 0;
oobregion->length = 4;
return 0;
case 1:
oobregion->offset = 4;
oobregion->length = 1;
return 0;
case 2:
oobregion->offset = 6;
oobregion->length = 2;
return 0;
case 3:
oobregion->offset = 11;
oobregion->length = 2;
return 0;
default:
return -ERANGE;
}
}
static const struct mtd_ooblayout_ops rbsxtlite_nand_ecclayout_ops = {
.ecc = rbsxtlite_ooblayout_ecc,
.free = rbsxtlite_ooblayout_free,
};
#endif /* < 4.6 */
static int rbsxtlite_nand_scan_fixup(struct mtd_info *mtd)
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
struct nand_chip *chip = mtd->priv;
#endif
if (mtd->writesize == 512) {
/*
* Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
* will not be able to find the kernel that we load.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
chip->ecc.layout = &rbsxtlite_nand_ecclayout;
#else
mtd_set_ooblayout(mtd, &rbsxtlite_nand_ecclayout_ops);
#endif
}
return 0;
}
void __init rbsxtlite_gpio_init(void)
{
gpio_request_one(SXTLITE_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
}
void __init rbsxtlite_nand_init(void)
{
ath79_nfc_set_scan_fixup(rbsxtlite_nand_scan_fixup);
ath79_nfc_set_parts(rbsxtlite_nand_partitions,
ARRAY_SIZE(rbsxtlite_nand_partitions));
ath79_nfc_set_select_chip(rbsxtlite_nand_select_chip);
ath79_nfc_set_swap_dma(true);
ath79_register_nfc();
}
static void __init rbsxtlite_setup(void)
{
if(rbsxtlite_rbinfo_init())
return;
rbsxtlite_nand_init();
rbsxtlite_wlan_init();
ath79_register_leds_gpio(-1, ARRAY_SIZE(rbsxtlite_leds_gpio),
rbsxtlite_leds_gpio);
ath79_register_gpio_keys_polled(-1, SXTLITE_KEYS_POLL_INTERVAL,
ARRAY_SIZE(rbsxtlite_gpio_keys),
rbsxtlite_gpio_keys);
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
ath79_register_mdio(1, 0x0);
/* GMAC0 is left unused */
/* GMAC1 is connected to MAC0 on the internal switch */
/* The ethernet port connects to PHY P0, which connects to MAC1
on the internal switch */
ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 0);
ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
ath79_register_eth(1);
}
MIPS_MACHINE(ATH79_MACH_RB_SXTLITE2ND, "sxt2n", "MikroTik RouterBOARD SXT Lite2",
rbsxtlite_setup);
MIPS_MACHINE(ATH79_MACH_RB_SXTLITE5ND, "sxt5n", "MikroTik RouterBOARD SXT Lite5",
rbsxtlite_setup);
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