ar71xx: add initial support for RB911G-5HPacD

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 45299

1 files changed, 236 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c
new file mode 100644
index 0000000000..c88c522b80
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c
@@ -0,0 +1,236 @@
+/*
+ *  MikroTik RouterBOARD 91X support
+ *
+ *  Copyright (C) 2015 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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/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/routerboot.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/phy-at803x.h>
+
+#include <asm/prom.h>
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-gpio-buttons.h"
+#include "dev-eth.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-nfc.h"
+#include "dev-usb.h"
+#include "dev-spi.h"
+#include "machtypes.h"
+#include "pci.h"
+#include "routerboot.h"
+
+#define RB922_GPIO_LED_USR	12
+#define RB922_GPIO_USB_POWER	13
+#define RB922_GPIO_FAN_CTRL	14
+#define RB922_GPIO_BTN_RESET	20
+#define RB922_GPIO_NAND_NCE	23
+
+#define RB922_PHY_ADDR		4
+
+#define RB922_KEYS_POLL_INTERVAL	20	/* msecs */
+#define RB922_KEYS_DEBOUNCE_INTERVAL	(3 * RB922_KEYS_POLL_INTERVAL)
+
+#define RB_ROUTERBOOT_OFFSET	0x0000
+#define RB_ROUTERBOOT_MIN_SIZE	0xb000
+#define RB_HARD_CFG_SIZE	0x1000
+#define RB_BIOS_OFFSET		0xd000
+#define RB_BIOS_SIZE		0x1000
+#define RB_SOFT_CFG_OFFSET	0xf000
+#define RB_SOFT_CFG_SIZE	0x1000
+
+static struct mtd_partition rb922gs_spi_partitions[] = {
+	{
+		.name		= "routerboot",
+		.offset		= RB_ROUTERBOOT_OFFSET,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "hard_config",
+		.size		= RB_HARD_CFG_SIZE,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "bios",
+		.offset		= RB_BIOS_OFFSET,
+		.size		= RB_BIOS_SIZE,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "soft_config",
+		.size		= RB_SOFT_CFG_SIZE,
+	}
+};
+
+static struct flash_platform_data rb922gs_spi_flash_data = {
+	.parts		= rb922gs_spi_partitions,
+	.nr_parts	= ARRAY_SIZE(rb922gs_spi_partitions),
+};
+
+static struct gpio_led rb922gs_leds[] __initdata = {
+	{
+		.name		= "rb:green:user",
+		.gpio		= RB922_GPIO_LED_USR,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button rb922gs_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = RB922_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= RB922_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+};
+
+static struct at803x_platform_data rb922gs_at803x_data = {
+	.disable_smarteee = 1,
+};
+
+static struct mdio_board_info rb922gs_mdio0_info[] = {
+	{
+		.bus_id = "ag71xx-mdio.0",
+		.phy_addr = RB922_PHY_ADDR,
+		.platform_data = &rb922gs_at803x_data,
+	},
+};
+
+static void __init rb922gs_init_partitions(const struct rb_info *info)
+{
+	rb922gs_spi_partitions[0].size = info->hard_cfg_offs;
+	rb922gs_spi_partitions[1].offset = info->hard_cfg_offs;
+	rb922gs_spi_partitions[3].offset = info->soft_cfg_offs;
+}
+
+static void rb922gs_nand_select_chip(int chip_no)
+{
+	switch (chip_no) {
+	case 0:
+		gpio_set_value(RB922_GPIO_NAND_NCE, 0);
+		break;
+	default:
+		gpio_set_value(RB922_GPIO_NAND_NCE, 1);
+		break;
+	}
+	ndelay(500);
+}
+
+static struct nand_ecclayout rb922gs_nand_ecclayout = {
+	.eccbytes	= 6,
+	.eccpos		= { 8, 9, 10, 13, 14, 15 },
+	.oobavail	= 9,
+	.oobfree	= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
+};
+
+static int rb922gs_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 = &rb922gs_nand_ecclayout;
+	}
+
+	return 0;
+}
+
+static struct mtd_partition rb922gs_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 void __init rb922gs_nand_init(void)
+{
+	gpio_request_one(RB922_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
+
+	ath79_nfc_set_scan_fixup(rb922gs_nand_scan_fixup);
+	ath79_nfc_set_parts(rb922gs_nand_partitions,
+			    ARRAY_SIZE(rb922gs_nand_partitions));
+	ath79_nfc_set_select_chip(rb922gs_nand_select_chip);
+	ath79_nfc_set_swap_dma(true);
+	ath79_register_nfc();
+}
+
+static void __init rb922gs_setup(void)
+{
+	const struct rb_info *info;
+	char buf[64];
+
+	info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
+	if (!info)
+		return;
+
+	scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
+		  (info->board_name) ? info->board_name : "");
+	mips_set_machine_name(buf);
+
+	rb922gs_init_partitions(info);
+	ath79_register_m25p80(&rb922gs_spi_flash_data);
+
+	rb922gs_nand_init();
+
+	ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
+
+	ath79_register_mdio(0, 0x0);
+
+	mdiobus_register_board_info(rb922gs_mdio0_info,
+				    ARRAY_SIZE(rb922gs_mdio0_info));
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = BIT(RB922_PHY_ADDR);
+	ath79_eth0_pll_data.pll_10 = 0x81001313;
+	ath79_eth0_pll_data.pll_100 = 0x81000101;
+	ath79_eth0_pll_data.pll_1000 = 0x8f000000;
+
+	ath79_register_eth(0);
+
+	ath79_register_pci();
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(rb922gs_leds), rb922gs_leds);
+	ath79_register_gpio_keys_polled(-1, RB922_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(rb922gs_gpio_keys),
+					rb922gs_gpio_keys);
+
+	/* NOTE:
+	 * This only supports the RB911G-5HPacD board for now. For other boards
+	 * more devices must be registered based on the hardware options which
+	 * can be found in the hardware configuration of RouterBOOT.
+	 */
+}
+
+MIPS_MACHINE_NONAME(ATH79_MACH_RB_922GS, "922gs", rb922gs_setup);