target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c

   1 /*
   2  *  MikroTik RouterBOARD 750/750GL support
   3  *
   4  *  Copyright (C) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  */
  10
  11 #include <linux/export.h>
  12 #include <linux/pci.h>
  13 #include <linux/ath9k_platform.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/phy.h>
  16 #include <linux/ar8216_platform.h>
  17 #include <linux/rle.h>
  18 #include <linux/routerboot.h>
  19
  20 #include <asm/mach-ath79/ar71xx_regs.h>
  21 #include <asm/mach-ath79/ath79.h>
  22 #include <asm/mach-ath79/irq.h>
  23 #include <asm/mach-ath79/mach-rb750.h>
  24
  25 #include "common.h"
  26 #include "dev-ap9x-pci.h"
  27 #include "dev-usb.h"
  28 #include "dev-eth.h"
  29 #include "machtypes.h"
  30 #include "routerboot.h"
  31
  32 static struct rb750_led_data rb750_leds[] = {
  33         {
  34                 .name           = "rb750:green:act",
  35                 .mask           = RB750_LED_ACT,
  36                 .active_low     = 1,
  37         }, {
  38                 .name           = "rb750:green:port1",
  39                 .mask           = RB750_LED_PORT5,
  40                 .active_low     = 1,
  41         }, {
  42                 .name           = "rb750:green:port2",
  43                 .mask           = RB750_LED_PORT4,
  44                 .active_low     = 1,
  45         }, {
  46                 .name           = "rb750:green:port3",
  47                 .mask           = RB750_LED_PORT3,
  48                 .active_low     = 1,
  49         }, {
  50                 .name           = "rb750:green:port4",
  51                 .mask           = RB750_LED_PORT2,
  52                 .active_low     = 1,
  53         }, {
  54                 .name           = "rb750:green:port5",
  55                 .mask           = RB750_LED_PORT1,
  56                 .active_low     = 1,
  57         }
  58 };
  59
  60 static struct rb750_led_data rb750gr3_leds[] = {
  61         {
  62                 .name           = "rb750:green:act",
  63                 .mask           = RB7XX_LED_ACT,
  64                 .active_low     = 1,
  65         },
  66 };
  67
  68 static struct rb750_led_platform_data rb750_leds_data;
  69 static struct platform_device rb750_leds_device = {
  70         .name   = "leds-rb750",
  71         .dev    = {
  72                 .platform_data = &rb750_leds_data,
  73         }
  74 };
  75
  76 static struct rb7xx_nand_platform_data rb750_nand_data;
  77 static struct platform_device rb750_nand_device = {
  78         .name   = "rb750-nand",
  79         .id     = -1,
  80         .dev    = {
  81                 .platform_data = &rb750_nand_data,
  82         }
  83 };
  84
  85 static void rb750_latch_change(u32 mask_clr, u32 mask_set)
  86 {
  87         static DEFINE_SPINLOCK(lock);
  88         static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
  89         static u32 latch_oe;
  90         static u32 latch_clr;
  91         unsigned long flags;
  92         u32 t;
  93
  94         spin_lock_irqsave(&lock, flags);
  95
  96         if ((mask_clr & BIT(31)) != 0 &&
  97             (latch_set & RB750_LVC573_LE) == 0) {
  98                 goto unlock;
  99         }
 100
 101         latch_set = (latch_set | mask_set) & ~mask_clr;
 102         latch_clr = (latch_clr | mask_clr) & ~mask_set;
 103
 104         if (latch_oe == 0)
 105                 latch_oe = __raw_readl(ath79_gpio_base + AR71XX_GPIO_REG_OE);
 106
 107         if (likely(latch_set & RB750_LVC573_LE)) {
 108                 void __iomem *base = ath79_gpio_base;
 109
 110                 t = __raw_readl(base + AR71XX_GPIO_REG_OE);
 111                 t |= mask_clr | latch_oe | mask_set;
 112
 113                 __raw_writel(t, base + AR71XX_GPIO_REG_OE);
 114                 __raw_writel(latch_clr, base + AR71XX_GPIO_REG_CLEAR);
 115                 __raw_writel(latch_set, base + AR71XX_GPIO_REG_SET);
 116         } else if (mask_clr & RB750_LVC573_LE) {
 117                 void __iomem *base = ath79_gpio_base;
 118
 119                 latch_oe = __raw_readl(base + AR71XX_GPIO_REG_OE);
 120                 __raw_writel(RB750_LVC573_LE, base + AR71XX_GPIO_REG_CLEAR);
 121                 /* flush write */
 122                 __raw_readl(base + AR71XX_GPIO_REG_CLEAR);
 123         }
 124
 125 unlock:
 126         spin_unlock_irqrestore(&lock, flags);
 127 }
 128
 129 static void rb750_nand_enable_pins(void)
 130 {
 131         rb750_latch_change(RB750_LVC573_LE, 0);
 132         ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
 133                                   AR724X_GPIO_FUNC_SPI_EN);
 134 }
 135
 136 static void rb750_nand_disable_pins(void)
 137 {
 138         ath79_gpio_function_setup(AR724X_GPIO_FUNC_SPI_EN,
 139                                   AR724X_GPIO_FUNC_JTAG_DISABLE);
 140         rb750_latch_change(0, RB750_LVC573_LE);
 141 }
 142
 143 static void __init rb750_setup(void)
 144 {
 145         ath79_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
 146                                      AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
 147                                      AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
 148                                      AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
 149                                      AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
 150
 151         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 152         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
 153
 154         ath79_register_mdio(0, 0x0);
 155
 156         /* LAN ports */
 157         ath79_register_eth(1);
 158
 159         /* WAN port */
 160         ath79_register_eth(0);
 161
 162         rb750_leds_data.num_leds = ARRAY_SIZE(rb750_leds);
 163         rb750_leds_data.leds = rb750_leds;
 164         rb750_leds_data.latch_change = rb750_latch_change;
 165         platform_device_register(&rb750_leds_device);
 166
 167         rb750_nand_data.nce_line = RB750_NAND_NCE;
 168         rb750_nand_data.enable_pins = rb750_nand_enable_pins;
 169         rb750_nand_data.disable_pins = rb750_nand_disable_pins;
 170         rb750_nand_data.latch_change = rb750_latch_change;
 171         platform_device_register(&rb750_nand_device);
 172 }
 173
 174 MIPS_MACHINE(ATH79_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",
 175              rb750_setup);
 176
 177 static struct ar8327_pad_cfg rb750gr3_ar8327_pad0_cfg = {
 178         .mode = AR8327_PAD_MAC_RGMII,
 179         .txclk_delay_en = true,
 180         .rxclk_delay_en = true,
 181         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 182         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 183 };
 184
 185 static struct ar8327_platform_data rb750gr3_ar8327_data = {
 186         .pad0_cfg = &rb750gr3_ar8327_pad0_cfg,
 187         .cpuport_cfg = {
 188                 .force_link = 1,
 189                 .speed = AR8327_PORT_SPEED_100,
 190                 .duplex = 1,
 191                 .txpause = 1,
 192                 .rxpause = 1,
 193         }
 194 };
 195
 196 static struct mdio_board_info rb750g3_mdio_info[] = {
 197         {
 198                 .bus_id = "ag71xx-mdio.0",
 199                 .phy_addr = 0,
 200                 .platform_data = &rb750gr3_ar8327_data,
 201         },
 202 };
 203
 204 static void rb750gr3_nand_enable_pins(void)
 205 {
 206         ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
 207                                   AR724X_GPIO_FUNC_SPI_EN |
 208                                   AR724X_GPIO_FUNC_SPI_CS_EN2);
 209 }
 210
 211 static void rb750gr3_nand_disable_pins(void)
 212 {
 213         ath79_gpio_function_setup(AR724X_GPIO_FUNC_SPI_EN |
 214                                   AR724X_GPIO_FUNC_SPI_CS_EN2,
 215                                   AR724X_GPIO_FUNC_JTAG_DISABLE);
 216 }
 217
 218 static void rb750gr3_latch_change(u32 mask_clr, u32 mask_set)
 219 {
 220         static DEFINE_SPINLOCK(lock);
 221         static u32 latch_set = RB7XX_LED_ACT;
 222         static u32 latch_clr;
 223         void __iomem *base = ath79_gpio_base;
 224         unsigned long flags;
 225         u32 t;
 226
 227         spin_lock_irqsave(&lock, flags);
 228
 229         latch_set = (latch_set | mask_set) & ~mask_clr;
 230         latch_clr = (latch_clr | mask_clr) & ~mask_set;
 231
 232         mask_set = latch_set & (RB7XX_USB_POWERON | RB7XX_MONITOR);
 233         mask_clr = latch_clr & (RB7XX_USB_POWERON | RB7XX_MONITOR);
 234
 235         if ((latch_set ^ RB7XX_LED_ACT) & RB7XX_LED_ACT) {
 236                 /* enable output mode */
 237                 t = __raw_readl(base + AR71XX_GPIO_REG_OE);
 238                 t |= RB7XX_LED_ACT;
 239                 __raw_writel(t, base + AR71XX_GPIO_REG_OE);
 240
 241                 mask_clr |= RB7XX_LED_ACT;
 242         } else {
 243                 /* disable output mode */
 244                 t = __raw_readl(base + AR71XX_GPIO_REG_OE);
 245                 t &= ~RB7XX_LED_ACT;
 246                 __raw_writel(t, base + AR71XX_GPIO_REG_OE);
 247         }
 248
 249         __raw_writel(mask_set, base + AR71XX_GPIO_REG_SET);
 250         __raw_writel(mask_clr, base + AR71XX_GPIO_REG_CLEAR);
 251
 252         spin_unlock_irqrestore(&lock, flags);
 253 }
 254
 255 static void __init rb750gr3_setup(void)
 256 {
 257         ath79_register_mdio(0, 0x0);
 258         mdiobus_register_board_info(rb750g3_mdio_info,
 259                                     ARRAY_SIZE(rb750g3_mdio_info));
 260
 261         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 262         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 263         ath79_eth0_data.phy_mask = BIT(0);
 264
 265         ath79_register_eth(0);
 266
 267         rb750_leds_data.num_leds = ARRAY_SIZE(rb750gr3_leds);
 268         rb750_leds_data.leds = rb750gr3_leds;
 269         rb750_leds_data.latch_change = rb750gr3_latch_change;
 270         platform_device_register(&rb750_leds_device);
 271
 272         rb750_nand_data.nce_line = RB7XX_NAND_NCE;
 273         rb750_nand_data.enable_pins = rb750gr3_nand_enable_pins;
 274         rb750_nand_data.disable_pins = rb750gr3_nand_disable_pins;
 275         rb750_nand_data.latch_change = rb750gr3_latch_change;
 276         platform_device_register(&rb750_nand_device);
 277 }
 278
 279 MIPS_MACHINE(ATH79_MACH_RB_750G_R3, "750Gr3", "MikroTik RouterBOARD 750GL",
 280              rb750gr3_setup);
 281
 282 #define RB751_HARDCONFIG        0x1f00b000
 283 #define RB751_HARDCONFIG_SIZE   0x1000
 284 #define RB751_MAC_ADDRESS_OFFSET 0xE80
 285
 286 static void __init rb751_wlan_setup(void)
 287 {
 288         u8 *hardconfig = (u8 *) KSEG1ADDR(RB751_HARDCONFIG);
 289         struct ath9k_platform_data *wmac_data;
 290         u16 tag_len;
 291         u8 *tag;
 292         int err;
 293
 294         wmac_data = ap9x_pci_get_wmac_data(0);
 295         if (!wmac_data) {
 296                 pr_err("rb75x: unable to get address of wlan data\n");
 297                 return;
 298         }
 299
 300         ap9x_pci_setup_wmac_led_pin(0, 9);
 301
 302         err = routerboot_find_tag(hardconfig, RB751_HARDCONFIG_SIZE,
 303                                   RB_ID_WLAN_DATA, &tag, &tag_len);
 304         if (err) {
 305                 pr_err("rb75x: no calibration data found\n");
 306                 return;
 307         }
 308
 309         err = rle_decode(tag, tag_len, (unsigned char *) wmac_data->eeprom_data,
 310                          sizeof(wmac_data->eeprom_data), NULL, NULL);
 311         if (err) {
 312                 pr_err("rb75x: unable to decode wlan eeprom data\n");
 313                 return;
 314         }
 315
 316         ap91_pci_init(NULL, hardconfig + RB751_MAC_ADDRESS_OFFSET);
 317 }
 318
 319 static void __init rb751_setup(void)
 320 {
 321         rb750_setup();
 322         ath79_register_usb();
 323         rb751_wlan_setup();
 324 }
 325
 326 MIPS_MACHINE(ATH79_MACH_RB_751, "751", "MikroTik RouterBOARD 751",
 327              rb751_setup);
 328
 329 static void __init rb751g_setup(void)
 330 {
 331         rb750gr3_setup();
 332         ath79_register_usb();
 333         rb751_wlan_setup();
 334 }
 335
 336 MIPS_MACHINE(ATH79_MACH_RB_751G, "751g", "MikroTik RouterBOARD 751G",
 337              rb751g_setup);