diff options
Diffstat (limited to 'arch/arm/mach-tegra/p852/board-p852-power.c')
-rw-r--r-- | arch/arm/mach-tegra/p852/board-p852-power.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/p852/board-p852-power.c b/arch/arm/mach-tegra/p852/board-p852-power.c new file mode 100644 index 000000000000..dce9bd7e83e2 --- /dev/null +++ b/arch/arm/mach-tegra/p852/board-p852-power.c @@ -0,0 +1,225 @@ +/* + * arch/arm/mach-tegra/p852/board-p852-power.c + * + * Copyright (c) 2010-2011, NVIDIA Corporation. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#include <linux/i2c.h> +#include <linux/pda_power.h> +#include <linux/platform_device.h> +#include <linux/resource.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/tps6586x.h> +#include <linux/gpio.h> +#include <linux/io.h> +#include <mach/iomap.h> +#include <mach/irqs.h> +#include "board-p852.h" + +#define PMC_CTRL 0x0 +#define PMC_CTRL_INTR_LOW (1 << 17) + +static struct regulator_consumer_supply tps658621_sm0_supply[] = { + REGULATOR_SUPPLY("vdd_core", NULL), +}; +static struct regulator_consumer_supply tps658621_sm1_supply[] = { + REGULATOR_SUPPLY("vdd_cpu", NULL), +}; +static struct regulator_consumer_supply tps658621_sm2_supply[] = { + REGULATOR_SUPPLY("vdd_sm2", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo0_supply[] = { + REGULATOR_SUPPLY("vddio_pex_clk", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo1_supply[] = { + REGULATOR_SUPPLY("avdd_pll", NULL), + REGULATOR_SUPPLY("avdd_plla_pc", NULL), + REGULATOR_SUPPLY("avdd_pllm", NULL), + REGULATOR_SUPPLY("avdd_pllu", NULL), + REGULATOR_SUPPLY("avdd_pllx6", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo2_supply[] = { + REGULATOR_SUPPLY("vdd_rtc", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo3_supply[] = { + REGULATOR_SUPPLY("avdd_usb", NULL), + REGULATOR_SUPPLY("avdd_usb_pll", NULL), + REGULATOR_SUPPLY("avdd_lvds", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo4_supply[] = { + REGULATOR_SUPPLY("avdd_osc", NULL), + REGULATOR_SUPPLY("vddio_sys", "panjit_touch"), +}; +static struct regulator_consumer_supply tps658621_ldo5_supply[] = { + REGULATOR_SUPPLY("vddio_lcd", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo6_supply[] = { + REGULATOR_SUPPLY("avdd_vdac", NULL), +}; +static struct regulator_consumer_supply tps658621_ldo7_supply[] = { + REGULATOR_SUPPLY("vddio_vi", NULL), + REGULATOR_SUPPLY("vdd_fuse", NULL), + REGULATOR_SUPPLY("vspi", "spi_tegra.0"), +}; +static struct regulator_consumer_supply tps658621_ldo8_supply[] = { + REGULATOR_SUPPLY("vddio_bb", NULL), + REGULATOR_SUPPLY("vmmc", "sdhci-tegra.0"), + REGULATOR_SUPPLY("vmmc", "sdhci-tegra.2"), +}; +static struct regulator_consumer_supply tps658621_ldo9_supply[] = { + REGULATOR_SUPPLY("vdd_ddr_rx", NULL), + REGULATOR_SUPPLY("vmmc", "sdhci-tegra.3"), +}; + +#define REGULATOR_INIT(_id, _minmv, _maxmv) \ + { \ + .constraints = { \ + .min_uV = (_minmv)*1000, \ + .max_uV = (_maxmv)*1000, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL | \ + REGULATOR_MODE_STANDBY), \ + .valid_ops_mask = (REGULATOR_CHANGE_MODE | \ + REGULATOR_CHANGE_STATUS | \ + REGULATOR_CHANGE_VOLTAGE), \ + }, \ + .num_consumer_supplies = ARRAY_SIZE(tps658621_##_id##_supply),\ + .consumer_supplies = tps658621_##_id##_supply, \ + } + +static struct regulator_init_data sm0_data = REGULATOR_INIT(sm0, 725, 1500); +static struct regulator_init_data sm1_data = REGULATOR_INIT(sm1, 725, 1500); +static struct regulator_init_data sm2_data = REGULATOR_INIT(sm2, 3000, 4550); +static struct regulator_init_data ldo0_data = REGULATOR_INIT(ldo0, 1250, 3300); +static struct regulator_init_data ldo1_data = REGULATOR_INIT(ldo1, 725, 1500); +static struct regulator_init_data ldo2_data = REGULATOR_INIT(ldo2, 725, 1225); +static struct regulator_init_data ldo3_data = REGULATOR_INIT(ldo3, 1250, 3300); +static struct regulator_init_data ldo4_data = REGULATOR_INIT(ldo4, 1700, 2475); +static struct regulator_init_data ldo5_data = REGULATOR_INIT(ldo5, 1250, 3300); +static struct regulator_init_data ldo6_data = REGULATOR_INIT(ldo6, 1250, 3300); +static struct regulator_init_data ldo7_data = REGULATOR_INIT(ldo7, 1250, 3300); +static struct regulator_init_data ldo8_data = REGULATOR_INIT(ldo8, 1250, 3300); +static struct regulator_init_data ldo9_data = REGULATOR_INIT(ldo9, 1250, 3300); + + +static struct tps6586x_rtc_platform_data rtc_data = { + .irq = TEGRA_NR_IRQS + TPS6586X_INT_RTC_ALM1, + .cl_sel = 0, +}; + + +#define TPS_REG(_id, _data) \ + { \ + .id = TPS6586X_ID_##_id, \ + .name = "tps6586x-regulator", \ + .platform_data = _data, \ + } + +static struct tps6586x_subdev_info tps_devs[] = { + TPS_REG(SM_0, &sm0_data), + TPS_REG(SM_1, &sm1_data), + TPS_REG(SM_2, &sm2_data), + TPS_REG(LDO_0, &ldo0_data), + TPS_REG(LDO_1, &ldo1_data), + TPS_REG(LDO_2, &ldo2_data), + TPS_REG(LDO_3, &ldo3_data), + TPS_REG(LDO_4, &ldo4_data), + TPS_REG(LDO_5, &ldo5_data), + TPS_REG(LDO_6, &ldo6_data), + TPS_REG(LDO_7, &ldo7_data), + TPS_REG(LDO_8, &ldo8_data), + TPS_REG(LDO_9, &ldo9_data), + { + .id = 0, + .name = "tps6586x-rtc", + .platform_data = &rtc_data, + }, +}; + +static struct tps6586x_platform_data tps_platform = { + .irq_base = TEGRA_NR_IRQS, + .num_subdevs = ARRAY_SIZE(tps_devs), + .subdevs = tps_devs, + .gpio_base = TEGRA_NR_GPIOS, +}; + +static struct i2c_board_info __initdata p852_regulators[] = { + { + I2C_BOARD_INFO("tps6586x", 0x34), + .irq = INT_EXTERNAL_PMU, + .platform_data = &tps_platform, + }, +}; + +static struct tegra_suspend_platform_data p852_suspend_data = { + .cpu_timer = 2000, + .cpu_off_timer = 0, + .suspend_mode = TEGRA_SUSPEND_LP1, + .core_timer = 0x7e7e, + .core_off_timer = 0, + .corereq_high = false, + .sysclkreq_high = true, +}; + +static void p852_power_off(void) +{ + int ret; + + ret = tps6586x_power_off(); + if (ret) + pr_err("p852: failed to power off\n"); + + while (1) + ; +} + +void __init p852_power_off_init(void) +{ + pm_power_off = p852_power_off; +} + +static void __init tps6586x_rtc_preinit(void) +{ + int i; + struct tps6586x_rtc_platform_data *rtc_pdata; + + if (system_rev == P852_SKU23_B00 || + system_rev == P852_SKU23_C01 || + system_rev == P852_SKU13_B00 || + system_rev == P852_SKU5_B00 || + system_rev == P852_SKU5_C01) { + for (i = 0; i < tps_platform.num_subdevs; ++i) + if (!strcmp(tps_platform.subdevs[i].name, + "tps6586x-rtc")) + rtc_pdata = + (struct tps6586x_rtc_platform_data *) + (tps_platform.subdevs[i].platform_data); + rtc_pdata->cl_sel = TPS6586X_RTC_CL_SEL_1_5PF; + } +} + +int __init p852_regulator_init(void) +{ + void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE); + u32 pmc_ctrl; + + /* configure the power management controller to trigger PMU + * interrupts when low */ + pmc_ctrl = readl(pmc + PMC_CTRL); + writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL); + i2c_register_board_info(3, p852_regulators, 1); + tegra_init_suspend(&p852_suspend_data); + + tps6586x_rtc_preinit(); + + return 0; +} |