ar71xx: Add support for MikroTik RouterBOARD SXT Lite

This patch adds support for the MikroTik RouterBOARD SXT Lite.

The new RB911L series is also supported as a result.

v2 of this patch fixes the wmac offset to match what is on the sticker.
v3 refreshes the patch against r41148 and defines the power led as the status led in diag.sh
v4 refreshes the patch against r41353 and fixes the patch path issue to make git am work correctly
v5 selects the kernel config option in the mikrotik profile rather than in the main ar71xx config

Signed-off-by: Matthew Reeve <mreeve@tenxnetworks.com>
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 41450

6 files changed, 289 insertions, 0 deletions

diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 687cddf419..ef172b478c 100755
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/target/linux/ar71xx/base-files/etc/diag.sh
@@ -135,6 +135,10 @@ get_status_led() {
 	rb-951ui-2hnd)
 		status_led="rb:green:act"
 		;;
+	rb-sxt2n|\
+	rb-sxt5n)
+		status_led="rb:green:power"
+		;;
 	routerstation | routerstation-pro)
 		status_led="ubnt:green:rf"
 		;;
diff --git a/target/linux/ar71xx/base-files/etc/uci-defaults/02_network b/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
index 99c0268581..646425c323 100755
--- a/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
+++ b/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
@@ -259,6 +259,8 @@ eap7660d |\
 mr600 |\
 mr600v2 |\
 rb-411 |\
+rb-sxt2n |\
+rb-sxt5n |\
 tl-mr10u |\
 tl-mr11u |\
 tl-mr13u |\
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index 4656ac279e..bd277aba7c 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -466,6 +466,12 @@ ar71xx_board_detect() {
 	*"RouterBOARD 2011UAS-2HnD")
 		name="rb-2011uas-2hnd"
 		;;
+	*"RouterBOARD SXT Lite2")
+		name="rb-sxt2n"
+		;;
+	*"RouterBOARD SXT Lite5")
+		name="rb-sxt5n"
+		;;
 	*"Rocket M")
 		name="rocket-m"
 		;;
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rbsxtlite.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rbsxtlite.c
new file mode 100644
index 0000000000..94e0b4483e
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rbsxtlite.c
@@ -0,0 +1,238 @@
+/*
+ *  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 <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   = "rootfs",
+		.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,
+	},
+};
+
+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);
+}
+
+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 } }
+};
+
+static int rbsxtlite_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 = &rbsxtlite_nand_ecclayout;
+	}
+
+	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);
+
diff --git a/target/linux/ar71xx/mikrotik/config-default b/target/linux/ar71xx/mikrotik/config-default
index ea99465678..39d3e606c6 100644
--- a/target/linux/ar71xx/mikrotik/config-default
+++ b/target/linux/ar71xx/mikrotik/config-default
@@ -40,6 +40,7 @@ CONFIG_ATH79_MACH_RB4XX=y
 CONFIG_ATH79_MACH_RB750=y
 CONFIG_ATH79_MACH_RB91X=y
 CONFIG_ATH79_MACH_RB95X=y
+CONFIG_ATH79_MACH_RBSXTLITE=y
 # CONFIG_ATH79_MACH_RW2458N is not set
 # CONFIG_ATH79_MACH_TEW_632BRP is not set
 # CONFIG_ATH79_MACH_TEW_673GRU is not set
diff --git a/target/linux/ar71xx/patches-3.10/713-MIPS-ath79-add-RBSXTLite-support.patch b/target/linux/ar71xx/patches-3.10/713-MIPS-ath79-add-RBSXTLite-support.patch
new file mode 100644
index 0000000000..89bad3ecb8
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.10/713-MIPS-ath79-add-RBSXTLite-support.patch
@@ -0,0 +1,38 @@
+--- a/arch/mips/ath79/Kconfig	2014-05-21 20:25:24.801106234 +0000
++++ b/arch/mips/ath79/Kconfig	2014-05-21 20:28:20.489109814 +0000
+@@ -462,6 +462,14 @@ config ATH79_MACH_RB2011
+ 	select ATH79_ROUTERBOOT
+ 	select RLE_DECOMPRESS
+ 
++config ATH79_MACH_RBSXTLITE
++	bool "MikroTik RouterBOARD SXT Lite"
++	select SOC_AR934x
++	select ATH79_DEV_ETH
++	select ATH79_DEV_NFC
++	select ATH79_DEV_WMAC
++	select ATH79_ROUTERBOOT
++
+ config ATH79_MACH_WNDAP360
+ 	bool "NETGEAR WNDAP360 board support"
+ 	select SOC_AR71XX
+--- a/arch/mips/ath79/machtypes.h	2014-05-21 20:25:24.801106234 +0000
++++ b/arch/mips/ath79/machtypes.h	2014-05-21 20:30:04.829111865 +0000
+@@ -93,6 +93,8 @@ enum ath79_mach_type {
+ 	ATH79_MACH_RB_2011G,		/* Mikrotik RouterBOARD 2011UAS-2HnD */
+ 	ATH79_MACH_RB_2011L,		/* Mikrotik RouterBOARD 2011L */
+ 	ATH79_MACH_RB_2011US,		/* Mikrotik RouterBOARD 2011UAS */
++	ATH79_MACH_RB_SXTLITE2ND,	/* Mikrotik RouterBOARD SXT Lite 2nD */
++	ATH79_MACH_RB_SXTLITE5ND,	/* Mikrotik RouterBOARD SXT Lite 5nD */
+ 	ATH79_MACH_RW2458N,		/* Redwave RW2458N */
+ 	ATH79_MACH_TEW_632BRP,		/* TRENDnet TEW-632BRP */
+ 	ATH79_MACH_TEW_673GRU,		/* TRENDnet TEW-673GRU */
+--- a/arch/mips/ath79/Makefile	2014-05-21 20:25:24.801106234 +0000
++++ b/arch/mips/ath79/Makefile	2014-05-21 20:31:37.169113830 +0000
+@@ -85,6 +85,7 @@ obj-$(CONFIG_ATH79_MACH_RB750)		+= mach-
+ obj-$(CONFIG_ATH79_MACH_RB91X)		+= mach-rb91x.o
+ obj-$(CONFIG_ATH79_MACH_RB95X)		+= mach-rb95x.o
+ obj-$(CONFIG_ATH79_MACH_RB2011)		+= mach-rb2011.o
++obj-$(CONFIG_ATH79_MACH_RBSXTLITE)	+= mach-rbsxtlite.o
+ obj-$(CONFIG_ATH79_MACH_RW2458N)	+= mach-rw2458n.o
+ obj-$(CONFIG_ATH79_MACH_TEW_632BRP)	+= mach-tew-632brp.o
+ obj-$(CONFIG_ATH79_MACH_TEW_673GRU)	+= mach-tew-673gru.o