[ARM/tegra] Add Aruba board definition files

Bug 764354

Original-Change-Id: I23d0ddc5107c02195ef58cab0e0c49ea65c72a87
Reviewed-on: http://git-master/r/12229
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Tested-by: Scott Williams <scwilliams@nvidia.com>
Original-Change-Id: Ibaa7f1e4cd5a3e3475d56601b420e40985194197

Rebase-Id: Rbdcbee634d19419502574f356a35370797db473a

1 files changed, 252 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-aruba-panel.c b/arch/arm/mach-tegra/board-aruba-panel.c
new file mode 100644
index 000000000000..d98cb7f65db9
--- /dev/null
+++ b/arch/arm/mach-tegra/board-aruba-panel.c
@@ -0,0 +1,252 @@
+/*
+ * arch/arm/mach-tegra/board-aruba-panel.c
+ *
+ * Copyright (c) 2010, NVIDIA Corporation.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
+#include <linux/resource.h>
+#include <asm/mach-types.h>
+#include <linux/platform_device.h>
+#include <linux/pwm_backlight.h>
+#include <mach/nvhost.h>
+#include <mach/nvmap.h>
+#include <mach/irqs.h>
+#include <mach/iomap.h>
+#include <mach/dc.h>
+#include <mach/fb.h>
+
+#include "devices.h"
+#include "gpio-names.h"
+
+#define PMC_SCRATCH20	0xa0
+
+#define aruba_lvds_shutdown	TEGRA_GPIO_PB2
+
+static int aruba_panel_enable(void)
+{
+	static struct regulator *reg = NULL;
+
+	if (reg == NULL) {
+		reg = regulator_get(NULL, "avdd_lvds");
+		if (WARN_ON(IS_ERR(reg)))
+			pr_err("%s: couldn't get regulator avdd_lvds: %ld\n",
+			       __func__, PTR_ERR(reg));
+		else
+			regulator_enable(reg);
+	}
+
+	gpio_set_value(aruba_lvds_shutdown, 1);
+	return 0;
+}
+
+static int aruba_panel_disable(void)
+{
+	gpio_set_value(aruba_lvds_shutdown, 0);
+	return 0;
+}
+
+static struct resource aruba_disp1_resources[] = {
+	{
+		.name	= "irq",
+		.start	= INT_DISPLAY_GENERAL,
+		.end	= INT_DISPLAY_GENERAL,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{
+		.name	= "regs",
+		.start	= TEGRA_DISPLAY_BASE,
+		.end	= TEGRA_DISPLAY_BASE + TEGRA_DISPLAY_SIZE-1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.name	= "fbmem",
+		.start	= 0,	/* Filled in by fbmem_set() */
+		.end	= 0,	/* Filled in by fbmem_set() */
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct tegra_dc_mode aruba_panel_modes[] = {
+	{
+		.pclk = 18000000,
+		.h_ref_to_sync = 8,
+		.v_ref_to_sync = 2,
+		.h_sync_width = 4,
+		.v_sync_width = 1,
+		.h_back_porch = 20,
+		.v_back_porch = 7,
+		.h_active = 480,
+		.v_active = 640,
+		.h_front_porch = 8,
+		.v_front_porch = 8,
+	},
+};
+
+static struct tegra_fb_data aruba_fb_data = {
+	.win		= 0,
+	.xres		= 1366,
+	.yres		= 768,
+	.bits_per_pixel	= 16,
+};
+
+static struct tegra_dc_out aruba_disp1_out = {
+	.type		= TEGRA_DC_OUT_RGB,
+
+	.align		= TEGRA_DC_ALIGN_MSB,
+	.order		= TEGRA_DC_ORDER_RED_BLUE,
+
+	.modes	 	= aruba_panel_modes,
+	.n_modes 	= ARRAY_SIZE(aruba_panel_modes),
+
+	.enable		= aruba_panel_enable,
+	.disable	= aruba_panel_disable,
+};
+
+static struct tegra_dc_platform_data aruba_disp1_pdata = {
+	.flags		= TEGRA_DC_FLAG_ENABLED,
+	.default_out	= &aruba_disp1_out,
+	.fb		= &aruba_fb_data,
+};
+
+static struct nvhost_device aruba_disp1_device = {
+	.name		= "tegradc",
+	.id		= 0,
+	.resource	= aruba_disp1_resources,
+	.num_resources	= ARRAY_SIZE(aruba_disp1_resources),
+	.dev = {
+		.platform_data = &aruba_disp1_pdata,
+	},
+};
+
+static struct nvmap_platform_carveout aruba_carveouts[] = {
+	[0] = {
+		.name		= "iram",
+		.usage_mask	= NVMAP_HEAP_CARVEOUT_IRAM,
+		.base		= TEGRA_IRAM_BASE,
+		.size		= TEGRA_IRAM_SIZE,
+		.buddy_size	= 0, /* no buddy allocation for IRAM */
+	},
+	[1] = {
+		.name		= "generic-0",
+		.usage_mask	= NVMAP_HEAP_CARVEOUT_GENERIC,
+		.base		= 0,	/* Filled in by carveout_set() */
+		.size		= 0,	/* Filled in by carveout_set() */
+		.buddy_size	= SZ_32K,
+	},
+};
+
+static struct nvmap_platform_data aruba_nvmap_data = {
+	.carveouts	= aruba_carveouts,
+	.nr_carveouts	= ARRAY_SIZE(aruba_carveouts),
+};
+
+static struct platform_device aruba_nvmap_device = {
+	.name	= "tegra-nvmap",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &aruba_nvmap_data,
+	},
+};
+
+static struct platform_device *aruba_gfx_devices[] __initdata = {
+	&aruba_nvmap_device,
+	&tegra_grhost_device,
+};
+
+
+static inline u32 pmc_readl(unsigned long offset)
+{
+	return readl(IO_TO_VIRT(TEGRA_PMC_BASE + offset));
+}
+
+static void fbmem_set(struct resource *res, int num_res,
+				u32 start, resource_size_t size)
+{
+	int i;
+	for (i = 0; i < num_res ; i++) {
+		if (!strcmp(res[i].name, "fbmem")) {
+			res[i].start = start;
+			res[i].end = start + size - 1;
+			return;
+		}
+	}
+	/* Didn't find a framebuffer memory resource */
+	BUG();
+}
+
+static void carveout_set(struct nvmap_platform_carveout *res, int num_res,
+				u32 base, resource_size_t size)
+{
+	int i;
+	for (i = 0; i < num_res ; i++) {
+		if (!strcmp(res[i].name, "generic-0")) {
+			res[i].base = base;
+			res[i].size = size;
+			return;
+		}
+	}
+	/* Didn't find a carveout memory resource */
+	BUG();
+}
+
+int __init aruba_panel_init(void)
+{
+	int err;
+	u32 odm_data = pmc_readl(PMC_SCRATCH20);
+
+	/* !!!FIXME!!!	HAVE TO USE HARD-CODED FRAME BUFFER AND CARVEOUT
+			ADDRESSES FOR NOW -- BUG 769986 */
+	switch (odm_data & 0x70000000) {
+	case 0x10000000:
+		/* 256MB LPDDR2 */
+		fbmem_set(aruba_disp1_resources,
+				ARRAY_SIZE(aruba_disp1_resources),
+				0x8E010000,
+				0x0012C3C0);
+		carveout_set(aruba_carveouts,
+				ARRAY_SIZE(aruba_carveouts),
+				0x8EC00000, /* 256MB mem - 32MB carveout + 0xC00000 ?*/
+				SZ_32M - 0xC00000);
+		break;
+	case 0x40000000:
+		/* 1GB DDR3 -- NOTE: The bootloader cannot map more than 512MB
+		   of physical memory. Therefore, the frame buffer and carveout
+		   must be completely below the 512MB boundary. */
+		fbmem_set(aruba_disp1_resources,
+				ARRAY_SIZE(aruba_disp1_resources),
+				0x9E010000,
+				0x0012C3C0);
+		carveout_set(aruba_carveouts,
+				ARRAY_SIZE(aruba_carveouts),
+				0x9EC00000, /* 512MB mem - 32MB carveout + 0xC00000 ?*/
+				SZ_32M - 0xC00000);
+		break;
+	default:
+		BUG();
+	}
+
+	err = platform_add_devices(aruba_gfx_devices,
+				   ARRAY_SIZE(aruba_gfx_devices));
+
+	if (!err)
+		err = nvhost_device_register(&aruba_disp1_device);
+
+	return err;
+}