--- /dev/null
+/*
+ * MikroTik RouterBOARD 95X support
+ *
+ * Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
+ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 Kamil Trzcinski <ayufan@ayufan.eu>
+ *
+ * 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) "rb95x: " 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>
+
+#include "common.h"
+#include "dev-eth.h"
+#include "dev-m25p80.h"
+#include "dev-nfc.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+#include "routerboot.h"
+
+#define RB95X_GPIO_NAND_NCE 14
+
+#define RB_ROUTERBOOT_OFFSET 0x0000
+#define RB_ROUTERBOOT_SIZE 0xb000
+#define RB_HARD_CFG_OFFSET 0xc000
+#define RB_HARD_CFG_SIZE 0x1000
+#define RB_BIOS_OFFSET 0xd000
+#define RB_BIOS_SIZE 0x2000
+#define RB_SOFT_CFG_OFFSET 0xe000
+#define RB_SOFT_CFG_SIZE 0x1000
+
+#define RB_ART_SIZE 0x10000
+
+static struct mtd_partition rb95x_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 ar8327_pad_cfg rb95x_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 rb95x_ar8327_data = {
+ .pad0_cfg = &rb95x_ar8327_pad0_cfg,
+ .port0_cfg = {
+ .force_link = 1,
+ .speed = AR8327_PORT_SPEED_1000,
+ .duplex = 1,
+ .txpause = 1,
+ .rxpause = 1,
+ }
+};
+
+static struct mdio_board_info rb95x_mdio0_info[] = {
+ {
+ .bus_id = "ag71xx-mdio.0",
+ .phy_addr = 0,
+ .platform_data = &rb95x_ar8327_data,
+ },
+};
+
+void __init rb95x_wlan_init(void)
+{
+ u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000 + RB_HARD_CFG_OFFSET);
+ u16 tag_len;
+ u8 *tag;
+ char *art_buf;
+ u8 wlan_mac[ETH_ALEN];
+ int err;
+
+ err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA,
+ &tag, &tag_len);
+ if (err) {
+ pr_err("no calibration data found\n");
+ return;
+ }
+
+ art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL);
+ if (art_buf == NULL) {
+ pr_err("no memory for calibration data\n");
+ return;
+ }
+
+ err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE,
+ NULL, NULL);
+ if (err) {
+ pr_err("unable to decode calibration data\n");
+ goto free;
+ }
+
+ ath79_init_mac(wlan_mac, ath79_mac_base, 11);
+ ath79_register_wmac(art_buf + 0x1000, wlan_mac);
+
+free:
+ kfree(art_buf);
+}
+
+static void rb95x_nand_select_chip(int chip_no)
+{
+ switch (chip_no) {
+ case 0:
+ gpio_set_value(RB95X_GPIO_NAND_NCE, 0);
+ break;
+ default:
+ gpio_set_value(RB95X_GPIO_NAND_NCE, 1);
+ break;
+ }
+ ndelay(500);
+}
+
+static struct nand_ecclayout rb95x_nand_ecclayout = {
+ .eccbytes = 6,
+ .eccpos = { 8, 9, 10, 13, 14, 15 },
+ .oobavail = 9,
+ .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
+};
+
+static int rb95x_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 = &rb95x_nand_ecclayout;
+ }
+
+ return 0;
+}
+
+void __init rb95x_nand_init(void)
+{
+ ath79_nfc_set_scan_fixup(rb95x_nand_scan_fixup);
+ ath79_nfc_set_parts(rb95x_nand_partitions,
+ ARRAY_SIZE(rb95x_nand_partitions));
+ ath79_nfc_set_select_chip(rb95x_nand_select_chip);
+ ath79_nfc_set_swap_dma(true);
+ ath79_register_nfc();
+}
+
+void __init rb95x_gpio_init(void)
+{
+ gpio_request_one(RB95X_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
+}
+
+static void __init rb95x_setup(void)
+{
+ rb95x_gpio_init();
+ rb95x_nand_init();
+
+ ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
+ AR934X_ETH_CFG_SW_ONLY_MODE);
+
+ ath79_register_mdio(0, 0x0);
+
+ mdiobus_register_board_info(rb95x_mdio0_info,
+ ARRAY_SIZE(rb95x_mdio0_info));
+
+ ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
+ ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+ ath79_eth0_data.phy_mask = BIT(0);
+
+ ath79_register_eth(0);
+}
+
+static void __init rb951g_setup(void)
+{
+ rb95x_setup();
+ rb95x_wlan_init();
+ ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_951G, "951G", "MikroTik RouterBOARD 951G-2HnD",
+ rb951g_setup);
projects / openwrt / openwrt.git / blobdiff