diff options
Diffstat (limited to 'arch/arm/mach-orion5x/dns323-setup.c')
| -rw-r--r-- | arch/arm/mach-orion5x/dns323-setup.c | 402 |
1 files changed, 348 insertions, 54 deletions
diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index b31ca4cef365..3a7bc0e36982 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -3,6 +3,10 @@ * * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org> * + * Support for HW Rev C1: + * + * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2 of the @@ -12,6 +16,7 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/pci.h> #include <linux/irq.h> @@ -22,6 +27,8 @@ #include <linux/input.h> #include <linux/i2c.h> #include <linux/ata_platform.h> +#include <linux/phy.h> +#include <linux/marvell_phy.h> #include <asm/mach-types.h> #include <asm/gpio.h> #include <asm/mach/arch.h> @@ -30,15 +37,35 @@ #include "common.h" #include "mpp.h" +/* Rev A1 and B1 */ #define DNS323_GPIO_LED_RIGHT_AMBER 1 #define DNS323_GPIO_LED_LEFT_AMBER 2 -#define DNS323_GPIO_LED_POWER 5 +#define DNS323_GPIO_SYSTEM_UP 3 +#define DNS323_GPIO_LED_POWER1 4 +#define DNS323_GPIO_LED_POWER2 5 #define DNS323_GPIO_OVERTEMP 6 #define DNS323_GPIO_RTC 7 #define DNS323_GPIO_POWER_OFF 8 #define DNS323_GPIO_KEY_POWER 9 #define DNS323_GPIO_KEY_RESET 10 +/* Rev C1 */ +#define DNS323C_GPIO_KEY_POWER 1 +#define DNS323C_GPIO_POWER_OFF 2 +#define DNS323C_GPIO_LED_RIGHT_AMBER 8 +#define DNS323C_GPIO_LED_LEFT_AMBER 9 +#define DNS323C_GPIO_LED_POWER 17 +#define DNS323C_GPIO_FAN_BIT1 18 +#define DNS323C_GPIO_FAN_BIT0 19 + +/* Exposed to userspace, do not change */ +enum { + DNS323_REV_A1, /* 0 */ + DNS323_REV_B1, /* 1 */ + DNS323_REV_C1, /* 2 */ +}; + + /**************************************************************************** * PCI setup */ @@ -65,21 +92,12 @@ static struct hw_pci dns323_pci __initdata = { .map_irq = dns323_pci_map_irq, }; -static int __init dns323_dev_id(void) -{ - u32 dev, rev; - - orion5x_pcie_id(&dev, &rev); - - return dev; -} - static int __init dns323_pci_init(void) { - /* The 5182 doesn't really use its PCI bus, and initialising PCI + /* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI * gets in the way of initialising the SATA controller. */ - if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID) + if (machine_is_dns323() && system_rev == DNS323_REV_A1) pci_common_init(&dns323_pci); return 0; @@ -218,7 +236,7 @@ static int __init dns323_read_mac_addr(void) } iounmap(mac_page); - printk("DNS323: Found ethernet MAC address: "); + printk("DNS-323: Found ethernet MAC address: "); for (i = 0; i < 6; i++) printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n"); @@ -235,11 +253,32 @@ error_fail: * GPIO LEDs (simple - doesn't use hardware blinking support) */ -static struct gpio_led dns323_leds[] = { +#define ORION_BLINK_HALF_PERIOD 100 /* ms */ + +static int dns323_gpio_blink_set(unsigned gpio, int state, + unsigned long *delay_on, unsigned long *delay_off) +{ + + if (delay_on && delay_off && !*delay_on && !*delay_off) + *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; + + switch(state) { + case GPIO_LED_NO_BLINK_LOW: + case GPIO_LED_NO_BLINK_HIGH: + orion_gpio_set_blink(gpio, 0); + gpio_set_value(gpio, state); + break; + case GPIO_LED_BLINK: + orion_gpio_set_blink(gpio, 1); + } + return 0; +} + +static struct gpio_led dns323ab_leds[] = { { .name = "power:blue", - .gpio = DNS323_GPIO_LED_POWER, - .active_low = 1, + .gpio = DNS323_GPIO_LED_POWER2, + .default_trigger = "default-on", }, { .name = "right:amber", .gpio = DNS323_GPIO_LED_RIGHT_AMBER, @@ -251,16 +290,42 @@ static struct gpio_led dns323_leds[] = { }, }; -static struct gpio_led_platform_data dns323_led_data = { - .num_leds = ARRAY_SIZE(dns323_leds), - .leds = dns323_leds, + +static struct gpio_led dns323c_leds[] = { + { + .name = "power:blue", + .gpio = DNS323C_GPIO_LED_POWER, + .default_trigger = "timer", + .active_low = 1, + }, { + .name = "right:amber", + .gpio = DNS323C_GPIO_LED_RIGHT_AMBER, + .active_low = 1, + }, { + .name = "left:amber", + .gpio = DNS323C_GPIO_LED_LEFT_AMBER, + .active_low = 1, + }, +}; + + +static struct gpio_led_platform_data dns323ab_led_data = { + .num_leds = ARRAY_SIZE(dns323ab_leds), + .leds = dns323ab_leds, + .gpio_blink_set = dns323_gpio_blink_set, +}; + +static struct gpio_led_platform_data dns323c_led_data = { + .num_leds = ARRAY_SIZE(dns323c_leds), + .leds = dns323c_leds, + .gpio_blink_set = dns323_gpio_blink_set, }; static struct platform_device dns323_gpio_leds = { .name = "leds-gpio", .id = -1, .dev = { - .platform_data = &dns323_led_data, + .platform_data = &dns323ab_led_data, }, }; @@ -268,7 +333,7 @@ static struct platform_device dns323_gpio_leds = { * GPIO Attached Keys */ -static struct gpio_keys_button dns323_buttons[] = { +static struct gpio_keys_button dns323ab_buttons[] = { { .code = KEY_RESTART, .gpio = DNS323_GPIO_KEY_RESET, @@ -282,9 +347,23 @@ static struct gpio_keys_button dns323_buttons[] = { }, }; -static struct gpio_keys_platform_data dns323_button_data = { - .buttons = dns323_buttons, - .nbuttons = ARRAY_SIZE(dns323_buttons), +static struct gpio_keys_platform_data dns323ab_button_data = { + .buttons = dns323ab_buttons, + .nbuttons = ARRAY_SIZE(dns323ab_buttons), +}; + +static struct gpio_keys_button dns323c_buttons[] = { + { + .code = KEY_POWER, + .gpio = DNS323C_GPIO_KEY_POWER, + .desc = "Power Button", + .active_low = 1, + }, +}; + +static struct gpio_keys_platform_data dns323c_button_data = { + .buttons = dns323c_buttons, + .nbuttons = ARRAY_SIZE(dns323c_buttons), }; static struct platform_device dns323_button_device = { @@ -292,7 +371,7 @@ static struct platform_device dns323_button_device = { .id = -1, .num_resources = 0, .dev = { - .platform_data = &dns323_button_data, + .platform_data = &dns323ab_button_data, }, }; @@ -306,7 +385,7 @@ static struct mv_sata_platform_data dns323_sata_data = { /**************************************************************************** * General Setup */ -static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = { +static struct orion5x_mpp_mode dns323a_mpp_modes[] __initdata = { { 0, MPP_PCIE_RST_OUTn }, { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ @@ -330,11 +409,11 @@ static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = { { -1 }, }; -static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = { +static struct orion5x_mpp_mode dns323b_mpp_modes[] __initdata = { { 0, MPP_UNUSED }, { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ - { 3, MPP_UNUSED }, + { 3, MPP_GPIO }, /* system up flag */ { 4, MPP_GPIO }, /* power button LED */ { 5, MPP_GPIO }, /* power button LED */ { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ @@ -354,15 +433,57 @@ static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = { { -1 }, }; +static struct orion5x_mpp_mode dns323c_mpp_modes[] __initdata = { + { 0, MPP_GPIO }, /* ? input */ + { 1, MPP_GPIO }, /* input power switch (0 = pressed) */ + { 2, MPP_GPIO }, /* output power off */ + { 3, MPP_UNUSED }, /* ? output */ + { 4, MPP_UNUSED }, /* ? output */ + { 5, MPP_UNUSED }, /* ? output */ + { 6, MPP_UNUSED }, /* ? output */ + { 7, MPP_UNUSED }, /* ? output */ + { 8, MPP_GPIO }, /* i/o right amber LED */ + { 9, MPP_GPIO }, /* i/o left amber LED */ + { 10, MPP_GPIO }, /* input */ + { 11, MPP_UNUSED }, + { 12, MPP_SATA_LED }, + { 13, MPP_SATA_LED }, + { 14, MPP_SATA_LED }, + { 15, MPP_SATA_LED }, + { 16, MPP_UNUSED }, + { 17, MPP_GPIO }, /* power button LED */ + { 18, MPP_GPIO }, /* fan speed bit 0 */ + { 19, MPP_GPIO }, /* fan speed bit 1 */ + { -1 }, +}; + +/* Rev C1 Fan speed notes: + * + * The fan is controlled by 2 GPIOs on this board. The settings + * of the bits is as follow: + * + * GPIO 18 GPIO 19 Fan + * + * 0 0 stopped + * 0 1 low speed + * 1 0 high speed + * 1 1 don't do that (*) + * + * (*) I think the two bits control two feed-in resistors into a fixed + * PWN circuit, setting both bits will basically go a 'bit' faster + * than high speed, but d-link doesn't do it and you may get out of + * HW spec so don't do it. + */ + /* - * On the DNS-323 the following devices are attached via I2C: + * On the DNS-323 A1 and B1 the following devices are attached via I2C: * * i2c addr | chip | description * 0x3e | GMT G760Af | fan speed PWM controller * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) * 0x68 | ST M41T80 | RTC w/ alarm */ -static struct i2c_board_info __initdata dns323_i2c_devices[] = { +static struct i2c_board_info __initdata dns323ab_i2c_devices[] = { { I2C_BOARD_INFO("g760a", 0x3e), }, { @@ -372,26 +493,140 @@ static struct i2c_board_info __initdata dns323_i2c_devices[] = { }, }; -/* DNS-323 specific power off method */ -static void dns323_power_off(void) +/* + * On the DNS-323 C1 the following devices are attached via I2C: + * + * i2c addr | chip | description + * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) + * 0x68 | ST M41T80 | RTC w/ alarm + */ +static struct i2c_board_info __initdata dns323c_i2c_devices[] = { + { + I2C_BOARD_INFO("lm75", 0x48), + }, { + I2C_BOARD_INFO("m41t80", 0x68), + }, +}; + +/* DNS-323 rev. A specific power off method */ +static void dns323a_power_off(void) { - pr_info("%s: triggering power-off...\n", __func__); + pr_info("DNS-323: Triggering power-off...\n"); gpio_set_value(DNS323_GPIO_POWER_OFF, 1); } +/* DNS-323 rev B specific power off method */ +static void dns323b_power_off(void) +{ + pr_info("DNS-323: Triggering power-off...\n"); + /* Pin has to be changed to 1 and back to 0 to do actual power off. */ + gpio_set_value(DNS323_GPIO_POWER_OFF, 1); + mdelay(100); + gpio_set_value(DNS323_GPIO_POWER_OFF, 0); +} + +/* DNS-323 rev. C specific power off method */ +static void dns323c_power_off(void) +{ + pr_info("DNS-323: Triggering power-off...\n"); + gpio_set_value(DNS323C_GPIO_POWER_OFF, 1); +} + +static int dns323c_phy_fixup(struct phy_device *phy) +{ + phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS; + + return 0; +} + +static int __init dns323_identify_rev(void) +{ + u32 dev, rev, i, reg; + + pr_debug("DNS-323: Identifying board ... \n"); + + /* Rev A1 has a 5181 */ + orion5x_pcie_id(&dev, &rev); + if (dev == MV88F5181_DEV_ID) { + pr_debug("DNS-323: 5181 found, board is A1\n"); + return DNS323_REV_A1; + } + pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n"); + + /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is + * a bit gross but we want to do that without links into the eth + * driver so let's poke at it directly. We default to rev B1 in + * case the accesses fail + */ + +#define ETH_SMI_REG (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004) +#define SMI_BUSY 0x10000000 +#define SMI_READ_VALID 0x08000000 +#define SMI_OPCODE_READ 0x04000000 +#define SMI_OPCODE_WRITE 0x00000000 + + for (i = 0; i < 1000; i++) { + reg = readl(ETH_SMI_REG); + if (!(reg & SMI_BUSY)) + break; + } + if (i >= 1000) { + pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n"); + return DNS323_REV_B1; + } + writel((3 << 21) /* phy ID reg */ | + (8 << 16) /* phy addr */ | + SMI_OPCODE_READ, ETH_SMI_REG); + for (i = 0; i < 1000; i++) { + reg = readl(ETH_SMI_REG); + if (reg & SMI_READ_VALID) + break; + } + if (i >= 1000) { + pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n"); + return DNS323_REV_B1; + } + pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff); + + /* Note: the Marvell tools mask the ID with 0x3f0 before comparison + * but I don't see that making a difference here, at least with + * any known Marvell PHY ID + */ + switch(reg & 0xfff0) { + case 0x0cc0: /* MV88E1111 */ + return DNS323_REV_B1; + case 0x0e10: /* MV88E1118 */ + return DNS323_REV_C1; + default: + pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n", + reg & 0xffff); + } + return DNS323_REV_B1; +} + static void __init dns323_init(void) { /* Setup basic Orion functions. Need to be called early. */ orion5x_init(); + /* Identify revision */ + system_rev = dns323_identify_rev(); + pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev); + /* Just to be tricky, the 5182 has a completely different * set of MPP modes to the 5181. */ - if (dns323_dev_id() == MV88F5182_DEV_ID) - orion5x_mpp_conf(dns323_mv88f5182_mpp_modes); - else { - orion5x_mpp_conf(dns323_mv88f5181_mpp_modes); + switch(system_rev) { + case DNS323_REV_A1: + orion5x_mpp_conf(dns323a_mpp_modes); writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ + break; + case DNS323_REV_B1: + orion5x_mpp_conf(dns323b_mpp_modes); + break; + case DNS323_REV_C1: + orion5x_mpp_conf(dns323c_mpp_modes); + break; } /* setup flash mapping @@ -400,42 +635,101 @@ static void __init dns323_init(void) orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE); platform_device_register(&dns323_nor_flash); - platform_device_register(&dns323_gpio_leds); + /* Sort out LEDs, Buttons and i2c devices */ + switch(system_rev) { + case DNS323_REV_A1: + /* The 5181 power LED is active low and requires + * DNS323_GPIO_LED_POWER1 to also be low. + */ + dns323ab_leds[0].active_low = 1; + gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable"); + gpio_direction_output(DNS323_GPIO_LED_POWER1, 0); + /* Fall through */ + case DNS323_REV_B1: + i2c_register_board_info(0, dns323ab_i2c_devices, + ARRAY_SIZE(dns323ab_i2c_devices)); + break; + case DNS323_REV_C1: + /* Hookup LEDs & Buttons */ + dns323_gpio_leds.dev.platform_data = &dns323c_led_data; + dns323_button_device.dev.platform_data = &dns323c_button_data; + + /* Hookup i2c devices and fan driver */ + i2c_register_board_info(0, dns323c_i2c_devices, + ARRAY_SIZE(dns323c_i2c_devices)); + platform_device_register_simple("dns323c-fan", 0, NULL, 0); + + /* Register fixup for the PHY LEDs */ + phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118, + MARVELL_PHY_ID_MASK, + dns323c_phy_fixup); + } + platform_device_register(&dns323_gpio_leds); platform_device_register(&dns323_button_device); - i2c_register_board_info(0, dns323_i2c_devices, - ARRAY_SIZE(dns323_i2c_devices)); - /* * Configure peripherals. */ if (dns323_read_mac_addr() < 0) - printk("DNS323: Failed to read MAC address\n"); - + printk("DNS-323: Failed to read MAC address\n"); orion5x_ehci0_init(); orion5x_eth_init(&dns323_eth_data); orion5x_i2c_init(); orion5x_uart0_init(); - /* The 5182 has its SATA controller on-chip, and needs its own little - * init routine. - */ - if (dns323_dev_id() == MV88F5182_DEV_ID) + /* Remaining GPIOs */ + switch(system_rev) { + case DNS323_REV_A1: + /* Poweroff GPIO */ + if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || + gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) + pr_err("DNS-323: failed to setup power-off GPIO\n"); + pm_power_off = dns323a_power_off; + break; + case DNS323_REV_B1: + /* 5182 built-in SATA init */ orion5x_sata_init(&dns323_sata_data); - /* register dns323 specific power-off method */ - if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || - gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) - pr_err("DNS323: failed to setup power-off GPIO\n"); - pm_power_off = dns323_power_off; + /* The DNS323 rev B1 has flag to indicate the system is up. + * Without this flag set, power LED will flash and cannot be + * controlled via leds-gpio. + */ + if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0) + gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1); + + /* Poweroff GPIO */ + if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 || + gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0) + pr_err("DNS-323: failed to setup power-off GPIO\n"); + pm_power_off = dns323b_power_off; + break; + case DNS323_REV_C1: + /* 5182 built-in SATA init */ + orion5x_sata_init(&dns323_sata_data); + + /* Poweroff GPIO */ + if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 || + gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0) + pr_err("DNS-323: failed to setup power-off GPIO\n"); + pm_power_off = dns323c_power_off; + + /* Now, -this- should theorically be done by the sata_mv driver + * once I figure out what's going on there. Maybe the behaviour + * of the LEDs should be somewhat passed via the platform_data. + * for now, just whack the register and make the LEDs happy + * + * Note: AFAIK, rev B1 needs the same treatement but I'll let + * somebody else test it. + */ + writel(0x5, ORION5X_SATA_VIRT_BASE | 0x2c); + break; + } } /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ MACHINE_START(DNS323, "D-Link DNS-323") /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ - .phys_io = ORION5X_REGS_PHYS_BASE, - .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, .boot_params = 0x00000100, .init_machine = dns323_init, .map_io = orion5x_map_io, |