| 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); |
| 338 | |
