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[ARM] orion5x: Base support for DNS-323 rev C1

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This patch adds the base support for this new HW revision to the existing
dns323-setup.c file. The SoC seems to be the same as rev B1, the GPIOs
are all wired differently though and the fan control isn't i2c based
anymore.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
This commit is contained in:
Benjamin Herrenschmidt 2010-06-21 13:21:53 +10:00 committed by Nicolas Pitre
parent 2f495c398e
commit 6e2daa4942
1 changed files with 304 additions and 61 deletions
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365
arch/arm/mach-orion5x/dns323-setup.c
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@ -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
@ -23,6 +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>
@ -31,6 +37,7 @@
#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_SYSTEM_UP 3
@ -42,6 +49,23 @@
#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
*/
@ -68,21 +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;
@ -221,7 +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");
@ -259,7 +274,7 @@ static int dns323_gpio_blink_set(unsigned gpio, int state,
return 0;
}
static struct gpio_led dns323_leds[] = {
static struct gpio_led dns323ab_leds[] = {
{
.name = "power:blue",
.gpio = DNS323_GPIO_LED_POWER2,
@ -275,9 +290,34 @@ 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,
};
@ -285,7 +325,7 @@ static struct platform_device dns323_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &dns323_led_data,
.platform_data = &dns323ab_led_data,
},
};
@ -293,7 +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,
@ -307,9 +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 = {
@ -317,7 +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,
},
};
@ -331,7 +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) */
@ -355,7 +409,7 @@ 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) */
@ -379,15 +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),
}, {
@ -397,36 +493,140 @@ static struct i2c_board_info __initdata dns323_i2c_devices[] = {
},
};
/*
* 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("%s: triggering power-off...\n", __func__);
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
@ -435,53 +635,96 @@ 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);
/* The 5181 power LED is active low and requires
* DNS323_GPIO_LED_POWER1 to also be low.
*/
if (dns323_dev_id() == MV88F5181_DEV_ID) {
dns323_leds[0].active_low = 1;
gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
/* 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);
/* The 5182 has flag to indicate the system is up. Without this flag
* set, power LED will flash and cannot be controlled via leds-gpio.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
gpio_set_value(DNS323_GPIO_SYSTEM_UP, 1);
/* 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);
/* 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");
if (dns323_dev_id() == MV88F5182_DEV_ID)
/* 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;
else
pm_power_off = dns323a_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 */