diff options
Diffstat (limited to 'arch/arm/mach-mx5/mx53_loco_pmic_mc34708.c')
| -rw-r--r-- | arch/arm/mach-mx5/mx53_loco_pmic_mc34708.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mx53_loco_pmic_mc34708.c b/arch/arm/mach-mx5/mx53_loco_pmic_mc34708.c new file mode 100644 index 00000000..f88a184a --- /dev/null +++ b/arch/arm/mach-mx5/mx53_loco_pmic_mc34708.c @@ -0,0 +1,238 @@ +/* + * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/mc-pmic.h> +#include <mach/irqs.h> +#include <mach/iomux-mx53.h> + +/* + * Convenience conversion. + * Here atm, maybe there is somewhere better for this. + */ +#define mV_to_uV(mV) (mV * 1000) +#define uV_to_mV(uV) (uV / 1000) +#define V_to_uV(V) (mV_to_uV(V * 1000)) +#define uV_to_V(uV) (uV_to_mV(uV) / 1000) + +#define MC34708_I2C_DEVICE_NAME "mc34708" +/* 7-bit I2C bus slave address */ +#define MC34708_I2C_ADDR (0x08) + + +static struct regulator_init_data sw1a_init = { + .constraints = { + .name = "SW1", + .min_uV = 650000, + .max_uV = 1437500, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .valid_modes_mask = 0, + .always_on = 1, + .boot_on = 1, + }, +}; + +static struct regulator_init_data sw1b_init = { + .constraints = { + .name = "SW1B", + .min_uV = 650000, + .max_uV = 1437500, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .valid_modes_mask = 0, + .always_on = 1, + .boot_on = 1, + }, +}; + +static struct regulator_init_data sw2_init = { + .constraints = { + .name = "SW2", + .min_uV = 650000, + .max_uV = 1437500, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + .initial_state = PM_SUSPEND_MEM, + } +}; + +static struct regulator_init_data sw3_init = { + .constraints = { + .name = "SW3", + .min_uV = 650000, + .max_uV = 1425000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + } +}; + +static struct regulator_init_data sw4a_init = { + .constraints = { + .name = "SW4A", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(3300), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data sw4b_init = { + .constraints = { + .name = "SW4B", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(3300), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data sw5_init = { + .constraints = { + .name = "SW5", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(1975), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data vrefddr_init = { + .constraints = { + .name = "VREFDDR", + .always_on = 1, + .boot_on = 1, + } +}; + +static struct regulator_init_data vusb_init = { + .constraints = { + .name = "VUSB", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + .always_on = 1, + } +}; + +static struct regulator_init_data swbst_init = { + .constraints = { + .name = "SWBST", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + .always_on = 1, + } +}; + +static struct regulator_init_data vpll_init = { + .constraints = { + .name = "VPLL", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(1800), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + }, +}; + +static struct regulator_init_data vdac_init = { + .constraints = { + .name = "VDAC", + .min_uV = mV_to_uV(2500), + .max_uV = mV_to_uV(2775), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + .always_on = 1, + } +}; + +static struct regulator_init_data vusb2_init = { + .constraints = { + .name = "VUSB2", + .min_uV = mV_to_uV(2500), + .max_uV = mV_to_uV(3000), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .boot_on = 1, + .always_on = 1, + } +}; + +static struct regulator_init_data vgen1_init = { + .constraints = { + .name = "VGEN1", + .min_uV = mV_to_uV(1200), + .max_uV = mV_to_uV(1550), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + } +}; + +static struct regulator_init_data vgen2_init = { + .constraints = { + .name = "VGEN2", + .min_uV = mV_to_uV(2500), + .max_uV = mV_to_uV(3300), + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + } +}; + +static struct mc_pmic_regulator_init_data mx53_loco_mc34708_regulators[] = { + { .id = MC34708_SW1A, .init_data = &sw1a_init}, + { .id = MC34708_SW1B, .init_data = &sw1b_init}, + { .id = MC34708_SW2, .init_data = &sw2_init}, + { .id = MC34708_SW3, .init_data = &sw3_init}, + { .id = MC34708_SW4A, .init_data = &sw4a_init}, + { .id = MC34708_SW4B, .init_data = &sw4b_init}, + { .id = MC34708_SW5, .init_data = &sw5_init}, + { .id = MC34708_SWBST, .init_data = &swbst_init}, + { .id = MC34708_VPLL, .init_data = &vpll_init}, + { .id = MC34708_VREFDDR, .init_data = &vrefddr_init}, + { .id = MC34708_VUSB, .init_data = &vusb_init}, + { .id = MC34708_VUSB2, .init_data = &vusb2_init}, + { .id = MC34708_VDAC, .init_data = &vdac_init}, + { .id = MC34708_VGEN1, .init_data = &vgen1_init}, + { .id = MC34708_VGEN2, .init_data = &vgen2_init}, + +}; + + +static struct mc_pmic_platform_data mc34708_plat = { + .flags = MC_PMIC_USE_RTC | MC_PMIC_USE_REGULATOR, + .num_regulators = ARRAY_SIZE(mx53_loco_mc34708_regulators), + .regulators = mx53_loco_mc34708_regulators, +}; + +static struct i2c_board_info __initdata mc34708_i2c_device = { + I2C_BOARD_INFO(MC34708_I2C_DEVICE_NAME, MC34708_I2C_ADDR), + .platform_data = &mc34708_plat, +}; + +int __init mx53_loco_init_mc34708(u32 int_gpio) +{ + mc34708_i2c_device.irq = gpio_to_irq(int_gpio);/*update INT gpio*/ + return i2c_register_board_info(0, &mc34708_i2c_device, 1); +} |