tegra: p852: Add initial support of p852 platform

This patch adds initial support for p852 platform

bug 872849

Signed-off-by: Manoj Chourasia<mchourasia@nvidia.com>

Reviewed-on: http://git-master/r/46397
Tested-by: Manoj Chourasia <mchourasia@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Reviewed-by: Dan Willemsen <dwillemsen@nvidia.com>
(cherry picked from commit 7c3e671d05fcabdac4e73adf8f3f297924d44498)

Change-Id: I098489f5ef672ab1462edc0a188dc107f1291435
Reviewed-on: http://git-master/r/56897
Tested-by: Manoj Chourasia <mchourasia@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Reviewed-by: Dan Willemsen <dwillemsen@nvidia.com>

Rebase-Id: R7bfc6620b98515249ead457cf9dde9d2f267de64

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;
+}