From 238dd317f74250983aefbde6dc0a1f345a717993 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 29 Aug 2010 17:08:44 +0200 Subject: MIPS: AR7: Add support for Titan (TNETV10xx) SoC variant Add support for Titan TNETV1050,1055,1056,1060 variants. This SoC is almost completely identical to AR7 except on a few points: - a second bank of gpios is available - vlynq0 on titan is vlynq1 on ar7 - different PHY addresses for cpmac0 This SoC can be found on commercial products like the Linksys WRTP54G Original patch by Xin with improvments by Florian. Signed-off-by: Xin Zhen Signed-off-by: Florian Fainelli Patchwork: http://patchwork.linux-mips.org/patch/1563/ Signed-off-by: Ralf Baechle --- --- arch/mips/ar7/gpio.c | 240 +++++++++++++++++++++++++++++++++++++++++++++-- arch/mips/ar7/platform.c | 56 +++++++++++ arch/mips/ar7/setup.c | 14 +++ 3 files changed, 300 insertions(+), 10 deletions(-) (limited to 'arch/mips/ar7') diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c index f84834229dc..425dfa5d6e1 100644 --- a/arch/mips/ar7/gpio.c +++ b/arch/mips/ar7/gpio.c @@ -1,7 +1,7 @@ /* * Copyright (C) 2007 Felix Fietkau * Copyright (C) 2007 Eugene Konev - * Copyright (C) 2009 Florian Fainelli + * Copyright (C) 2009-2010 Florian Fainelli * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -37,6 +37,16 @@ static int ar7_gpio_get_value(struct gpio_chip *chip, unsigned gpio) return readl(gpio_in) & (1 << gpio); } +static int titan_gpio_get_value(struct gpio_chip *chip, unsigned gpio) +{ + struct ar7_gpio_chip *gpch = + container_of(chip, struct ar7_gpio_chip, chip); + void __iomem *gpio_in0 = gpch->regs + TITAN_GPIO_INPUT_0; + void __iomem *gpio_in1 = gpch->regs + TITAN_GPIO_INPUT_1; + + return readl(gpio >> 5 ? gpio_in1 : gpio_in0) & (1 << (gpio & 0x1f)); +} + static void ar7_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) { @@ -51,6 +61,21 @@ static void ar7_gpio_set_value(struct gpio_chip *chip, writel(tmp, gpio_out); } +static void titan_gpio_set_value(struct gpio_chip *chip, + unsigned gpio, int value) +{ + struct ar7_gpio_chip *gpch = + container_of(chip, struct ar7_gpio_chip, chip); + void __iomem *gpio_out0 = gpch->regs + TITAN_GPIO_OUTPUT_0; + void __iomem *gpio_out1 = gpch->regs + TITAN_GPIO_OUTPUT_1; + unsigned tmp; + + tmp = readl(gpio >> 5 ? gpio_out1 : gpio_out0) & ~(1 << (gpio & 0x1f)); + if (value) + tmp |= 1 << (gpio & 0x1f); + writel(tmp, gpio >> 5 ? gpio_out1 : gpio_out0); +} + static int ar7_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) { struct ar7_gpio_chip *gpch = @@ -62,6 +87,21 @@ static int ar7_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) return 0; } +static int titan_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) +{ + struct ar7_gpio_chip *gpch = + container_of(chip, struct ar7_gpio_chip, chip); + void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0; + void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1; + + if (gpio >= TITAN_GPIO_MAX) + return -EINVAL; + + writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) | (1 << (gpio & 0x1f)), + gpio >> 5 ? gpio_dir1 : gpio_dir0); + return 0; +} + static int ar7_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int value) { @@ -75,6 +115,24 @@ static int ar7_gpio_direction_output(struct gpio_chip *chip, return 0; } +static int titan_gpio_direction_output(struct gpio_chip *chip, + unsigned gpio, int value) +{ + struct ar7_gpio_chip *gpch = + container_of(chip, struct ar7_gpio_chip, chip); + void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0; + void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1; + + if (gpio >= TITAN_GPIO_MAX) + return -EINVAL; + + titan_gpio_set_value(chip, gpio, value); + writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) & ~(1 << + (gpio & 0x1f)), gpio >> 5 ? gpio_dir1 : gpio_dir0); + + return 0; +} + static struct ar7_gpio_chip ar7_gpio_chip = { .chip = { .label = "ar7-gpio", @@ -87,7 +145,19 @@ static struct ar7_gpio_chip ar7_gpio_chip = { } }; -int ar7_gpio_enable(unsigned gpio) +static struct ar7_gpio_chip titan_gpio_chip = { + .chip = { + .label = "titan-gpio", + .direction_input = titan_gpio_direction_input, + .direction_output = titan_gpio_direction_output, + .set = titan_gpio_set_value, + .get = titan_gpio_get_value, + .base = 0, + .ngpio = TITAN_GPIO_MAX, + } +}; + +static inline int ar7_gpio_enable_ar7(unsigned gpio) { void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE; @@ -95,9 +165,26 @@ int ar7_gpio_enable(unsigned gpio) return 0; } + +static inline int ar7_gpio_enable_titan(unsigned gpio) +{ + void __iomem *gpio_en0 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_0; + void __iomem *gpio_en1 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_1; + + writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) | (1 << (gpio & 0x1f)), + gpio >> 5 ? gpio_en1 : gpio_en0); + + return 0; +} + +int ar7_gpio_enable(unsigned gpio) +{ + return ar7_is_titan() ? ar7_gpio_enable_titan(gpio) : + ar7_gpio_enable_ar7(gpio); +} EXPORT_SYMBOL(ar7_gpio_enable); -int ar7_gpio_disable(unsigned gpio) +static inline int ar7_gpio_disable_ar7(unsigned gpio) { void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE; @@ -105,26 +192,159 @@ int ar7_gpio_disable(unsigned gpio) return 0; } + +static inline int ar7_gpio_disable_titan(unsigned gpio) +{ + void __iomem *gpio_en0 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_0; + void __iomem *gpio_en1 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_1; + + writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) & ~(1 << (gpio & 0x1f)), + gpio >> 5 ? gpio_en1 : gpio_en0); + + return 0; +} + +int ar7_gpio_disable(unsigned gpio) +{ + return ar7_is_titan() ? ar7_gpio_disable_titan(gpio) : + ar7_gpio_disable_ar7(gpio); +} EXPORT_SYMBOL(ar7_gpio_disable); +struct titan_gpio_cfg { + u32 reg; + u32 shift; + u32 func; +}; + +static struct titan_gpio_cfg titan_gpio_table[] = { + /* reg, start bit, mux value */ + {4, 24, 1}, + {4, 26, 1}, + {4, 28, 1}, + {4, 30, 1}, + {5, 6, 1}, + {5, 8, 1}, + {5, 10, 1}, + {5, 12, 1}, + {7, 14, 3}, + {7, 16, 3}, + {7, 18, 3}, + {7, 20, 3}, + {7, 22, 3}, + {7, 26, 3}, + {7, 28, 3}, + {7, 30, 3}, + {8, 0, 3}, + {8, 2, 3}, + {8, 4, 3}, + {8, 10, 3}, + {8, 14, 3}, + {8, 16, 3}, + {8, 18, 3}, + {8, 20, 3}, + {9, 8, 3}, + {9, 10, 3}, + {9, 12, 3}, + {9, 14, 3}, + {9, 18, 3}, + {9, 20, 3}, + {9, 24, 3}, + {9, 26, 3}, + {9, 28, 3}, + {9, 30, 3}, + {10, 0, 3}, + {10, 2, 3}, + {10, 8, 3}, + {10, 10, 3}, + {10, 12, 3}, + {10, 14, 3}, + {13, 12, 3}, + {13, 14, 3}, + {13, 16, 3}, + {13, 18, 3}, + {13, 24, 3}, + {13, 26, 3}, + {13, 28, 3}, + {13, 30, 3}, + {14, 2, 3}, + {14, 6, 3}, + {14, 8, 3}, + {14, 12, 3} +}; + +static int titan_gpio_pinsel(unsigned gpio) +{ + struct titan_gpio_cfg gpio_cfg; + u32 mux_status, pin_sel_reg, tmp; + void __iomem *pin_sel = (void __iomem *)KSEG1ADDR(AR7_REGS_PINSEL); + + if (gpio >= ARRAY_SIZE(titan_gpio_table)) + return -EINVAL; + + gpio_cfg = titan_gpio_table[gpio]; + pin_sel_reg = gpio_cfg.reg - 1; + + mux_status = (readl(pin_sel + pin_sel_reg) >> gpio_cfg.shift) & 0x3; + + /* Check the mux status */ + if (!((mux_status == 0) || (mux_status == gpio_cfg.func))) + return 0; + + /* Set the pin sel value */ + tmp = readl(pin_sel + pin_sel_reg); + tmp |= ((gpio_cfg.func & 0x3) << gpio_cfg.shift); + writel(tmp, pin_sel + pin_sel_reg); + + return 0; +} + +/* Perform minimal Titan GPIO configuration */ +static void titan_gpio_init(void) +{ + unsigned i; + + for (i = 44; i < 48; i++) { + titan_gpio_pinsel(i); + ar7_gpio_enable_titan(i); + titan_gpio_direction_input(&titan_gpio_chip.chip, i); + } +} + int __init ar7_gpio_init(void) { int ret; + struct ar7_gpio_chip *gpch; + unsigned size; + + if (!ar7_is_titan()) { + gpch = &ar7_gpio_chip; + size = 0x10; + } else { + gpch = &titan_gpio_chip; + size = 0x1f; + } - ar7_gpio_chip.regs = ioremap_nocache(AR7_REGS_GPIO, + gpch->regs = ioremap_nocache(AR7_REGS_GPIO, AR7_REGS_GPIO + 0x10); - if (!ar7_gpio_chip.regs) { - printk(KERN_ERR "ar7-gpio: failed to ioremap regs\n"); + if (!gpch->regs) { + printk(KERN_ERR "%s: failed to ioremap regs\n", + gpch->chip.label); return -ENOMEM; } - ret = gpiochip_add(&ar7_gpio_chip.chip); + ret = gpiochip_add(&gpch->chip); if (ret) { - printk(KERN_ERR "ar7-gpio: failed to add gpiochip\n"); + printk(KERN_ERR "%s: failed to add gpiochip\n", + gpch->chip.label); return ret; } - printk(KERN_INFO "ar7-gpio: registered %d GPIOs\n", - ar7_gpio_chip.chip.ngpio); + printk(KERN_INFO "%s: registered %d GPIOs\n", + gpch->chip.label, gpch->chip.ngpio); + + if (ar7_is_titan()) + titan_gpio_init(); + return ret; } diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index 0da5b2b8dd8..7d2fab39232 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -357,6 +357,11 @@ static struct gpio_led default_leds[] = { }, }; +static struct gpio_led titan_leds[] = { + { .name = "status", .gpio = 8, .active_low = 1, }, + { .name = "wifi", .gpio = 13, .active_low = 1, }, +}; + static struct gpio_led dsl502t_leds[] = { { .name = "status", @@ -495,6 +500,9 @@ static void __init detect_leds(void) } else if (strstr(prid, "DG834")) { ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds); ar7_led_data.leds = dg834g_leds; + } else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) { + ar7_led_data.num_leds = ARRAY_SIZE(titan_leds); + ar7_led_data.leds = titan_leds; } } @@ -560,6 +568,51 @@ static int __init ar7_register_uarts(void) return 0; } +static void __init titan_fixup_devices(void) +{ + /* Set vlynq0 data */ + vlynq_low_data.reset_bit = 15; + vlynq_low_data.gpio_bit = 14; + + /* Set vlynq1 data */ + vlynq_high_data.reset_bit = 16; + vlynq_high_data.gpio_bit = 7; + + /* Set vlynq0 resources */ + vlynq_low_res[0].start = TITAN_REGS_VLYNQ0; + vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff; + vlynq_low_res[1].start = 33; + vlynq_low_res[1].end = 33; + vlynq_low_res[2].start = 0x0c000000; + vlynq_low_res[2].end = 0x0fffffff; + vlynq_low_res[3].start = 80; + vlynq_low_res[3].end = 111; + + /* Set vlynq1 resources */ + vlynq_high_res[0].start = TITAN_REGS_VLYNQ1; + vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff; + vlynq_high_res[1].start = 34; + vlynq_high_res[1].end = 34; + vlynq_high_res[2].start = 0x40000000; + vlynq_high_res[2].end = 0x43ffffff; + vlynq_high_res[3].start = 112; + vlynq_high_res[3].end = 143; + + /* Set cpmac0 data */ + cpmac_low_data.phy_mask = 0x40000000; + + /* Set cpmac1 data */ + cpmac_high_data.phy_mask = 0x80000000; + + /* Set cpmac0 resources */ + cpmac_low_res[0].start = TITAN_REGS_MAC0; + cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff; + + /* Set cpmac1 resources */ + cpmac_high_res[0].start = TITAN_REGS_MAC1; + cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff; +} + static int __init ar7_register_devices(void) { void __iomem *bootcr; @@ -574,6 +627,9 @@ static int __init ar7_register_devices(void) if (res) pr_warning("unable to register physmap-flash: %d\n", res); + if (ar7_is_titan()) + titan_fixup_devices(); + ar7_device_disable(vlynq_low_data.reset_bit); res = platform_device_register(&vlynq_low); if (res) diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c index 3a801d2cb6e..f20b53e597c 100644 --- a/arch/mips/ar7/setup.c +++ b/arch/mips/ar7/setup.c @@ -23,6 +23,7 @@ #include #include #include +#include static void ar7_machine_restart(char *command) { @@ -49,6 +50,8 @@ static void ar7_machine_power_off(void) const char *get_system_type(void) { u16 chip_id = ar7_chip_id(); + u16 titan_variant_id = titan_chip_id(); + switch (chip_id) { case AR7_CHIP_7100: return "TI AR7 (TNETD7100)"; @@ -56,6 +59,17 @@ const char *get_system_type(void) return "TI AR7 (TNETD7200)"; case AR7_CHIP_7300: return "TI AR7 (TNETD7300)"; + case AR7_CHIP_TITAN: + switch (titan_variant_id) { + case TITAN_CHIP_1050: + return "TI AR7 (TNETV1050)"; + case TITAN_CHIP_1055: + return "TI AR7 (TNETV1055)"; + case TITAN_CHIP_1056: + return "TI AR7 (TNETV1056)"; + case TITAN_CHIP_1060: + return "TI AR7 (TNETV1060)"; + } default: return "TI AR7 (unknown)"; } -- cgit v1.2.3