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ARM: ux500: Provide SMSC911x fixed-regulator when not booting DT 

The SMSC911x Ethernet chip requires a fixed-regulator in order to
function correctly. We have previously provided a means to obtain
this during a Device Tree boot, however nothing has been put into
place when booting with a non-DT kernel. This patch aims to change
that.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Added a Kconfig select so the build does not break]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Lee Jones 2012-09-03 14:33:39 +01:00 committed by Linus Walleij
parent 5caecb4470
commit 0b5ea1e230
4 changed files with 36 additions and 0 deletions
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1
arch/arm/mach-ux500/Kconfig
View File

@ -28,6 +28,7 @@ config MACH_MOP500
select I2C
select I2C_NOMADIK
select SOC_BUS
select REGULATOR_FIXED_VOLTAGE
help
Include support for the MOP500 development platform.

15
arch/arm/mach-ux500/board-mop500-regulators.c
View File

@ -13,6 +13,21 @@
#include <linux/regulator/ab8500.h>
#include "board-mop500-regulators.h"
static struct regulator_consumer_supply gpio_en_3v3_consumers[] = {
REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
};
struct regulator_init_data gpio_en_3v3_regulator = {
.constraints = {
.name = "EN-3V3",
.min_uV = 3300000,
.max_uV = 3300000,
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(gpio_en_3v3_consumers),
.consumer_supplies = gpio_en_3v3_consumers,
};
/*
* TPS61052 regulator
*/

1
arch/arm/mach-ux500/board-mop500-regulators.h
View File

@ -18,5 +18,6 @@ extern struct ab8500_regulator_reg_init
ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS];
extern struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS];
extern struct regulator_init_data tps61052_regulator;
extern struct regulator_init_data gpio_en_3v3_regulator;
#endif

19
arch/arm/mach-ux500/board-mop500.c
View File

@ -23,6 +23,7 @@
#include <linux/spi/spi.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/regulator/ab8500.h>
#include <linux/regulator/fixed.h>
#include <linux/mfd/tc3589x.h>
#include <linux/mfd/tps6105x.h>
#include <linux/mfd/abx500/ab8500-gpio.h>
@ -76,6 +77,23 @@ static struct platform_device snowball_led_dev = {
},
};
static struct fixed_voltage_config snowball_gpio_en_3v3_data = {
.supply_name = "EN-3V3",
.gpio = SNOWBALL_EN_3V3_ETH_GPIO,
.microvolts = 3300000,
.enable_high = 1,
.init_data = &gpio_en_3v3_regulator,
.startup_delay = 5000, /* 1200us */
};
static struct platform_device snowball_gpio_en_3v3_regulator_dev = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &snowball_gpio_en_3v3_data,
},
};
static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
.gpio_base = MOP500_AB8500_PIN_GPIO(1),
.irq_base = MOP500_AB8500_VIR_GPIO_IRQ_BASE,
@ -586,6 +604,7 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
&snowball_led_dev,
&snowball_key_dev,
&snowball_sbnet_dev,
&snowball_gpio_en_3v3_regulator_dev,
};
static void __init mop500_init_machine(void)