arm: tegra: kai: create board files

Create initial board files and config files for Kai.

Reviewed-on: http://git-master/r/74441

Change-Id: I4b07607da85fe4bcb00e5fce2ddbc2a83471b1de
Signed-off-by: Johnny Qiu <joqiu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/77296
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 137 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-kai-power.c b/arch/arm/mach-tegra/board-kai-power.c
new file mode 100644
index 000000000000..43d7229100f0
--- /dev/null
+++ b/arch/arm/mach-tegra/board-kai-power.c
@@ -0,0 +1,137 @@
+/*
+ * arch/arm/mach-tegra/board-kai-power.c
+ *
+ * Copyright (C) 2012 NVIDIA, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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/i2c.h>
+#include <linux/pda_power.h>
+#include <linux/platform_device.h>
+#include <linux/resource.h>
+#include <linux/regulator/machine.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/regulator/gpio-switch-regulator.h>
+#include <linux/power/gpio-charger.h>
+
+#include <asm/mach-types.h>
+
+#include <mach/iomap.h>
+#include <mach/irqs.h>
+#include <mach/pinmux.h>
+#include <mach/edp.h>
+
+#include "gpio-names.h"
+#include "board.h"
+#include "board-kai.h"
+#include "pm.h"
+#include "wakeups-t3.h"
+#include "tegra3_tsensor.h"
+
+#define PMC_CTRL		0x0
+#define PMC_CTRL_INTR_LOW	(1 << 17)
+
+int __init kai_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);
+
+	return 0;
+}
+
+static void kai_board_suspend(int lp_state, enum suspend_stage stg)
+{
+	if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
+		tegra_console_uart_suspend();
+}
+
+static void kai_board_resume(int lp_state, enum resume_stage stg)
+{
+	if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
+		tegra_console_uart_resume();
+}
+
+static struct tegra_suspend_platform_data kai_suspend_data = {
+	.cpu_timer	= 2000,
+	.cpu_off_timer	= 200,
+	.suspend_mode	= TEGRA_SUSPEND_LP0,
+	.core_timer	= 0x7e7e,
+	.core_off_timer = 0,
+	.corereq_high	= true,
+	.sysclkreq_high	= true,
+	.cpu_lp2_min_residency = 2000,
+	.board_suspend = kai_board_suspend,
+	.board_resume = kai_board_resume,
+};
+
+int __init kai_suspend_init(void)
+{
+	tegra_init_suspend(&kai_suspend_data);
+	return 0;
+}
+
+static void kai_power_off(void)
+{
+	pr_err("kai: Powering off the device\n");
+
+	while (1)
+		;
+}
+
+int __init kai_power_off_init(void)
+{
+	pm_power_off = kai_power_off;
+
+	return 0;
+}
+
+static struct tegra_tsensor_pmu_data  tpdata = {
+	.poweroff_reg_addr = 0x3F,
+	.poweroff_reg_data = 0x80,
+	.reset_tegra = 1,
+	.controller_type = 0,
+	.i2c_controller_id = 4,
+	.pinmux = 0,
+	.pmu_16bit_ops = 0,
+	.pmu_i2c_addr = 0x2D,
+};
+
+void __init kai_tsensor_init(void)
+{
+	tegra3_tsensor_init(&tpdata);
+}
+
+#ifdef CONFIG_TEGRA_EDP_LIMITS
+
+int __init kai_edp_init(void)
+{
+	unsigned int regulator_mA;
+
+	regulator_mA = get_maximum_cpu_current_supported();
+	if (!regulator_mA)
+		regulator_mA = 6000; /* regular T30/s */
+	pr_info("%s: CPU regulator %d mA\n", __func__, regulator_mA);
+
+	tegra_init_cpu_edp_limits(regulator_mA);
+	return 0;
+}
+#endif