davinci: Initial support for Neuros OSD2 platform.

The Neuros OSD 2.0 is the hardware component of the Neuros Open
Internet Television Platform. Hardware is very close to Ti DM644X-EVM board.
It has: DM6446M02 module with 256MB NAND, 256MB RAM, TLV320AIC32 AIC,
USB, Ethernet, SD/MMC, UART, THS8200, TVP7000 for video.
Additionaly realtime clock, IR remote control receiver,
IR Blaster based on MSP430 (firmware although is different
from used in DM644X-EVM), internal ATA-6 3.5” HDD drive
with PATA interface, two muxed red-green leds.

For more information please refer to
	http://wiki.neurostechnology.com/index.php/OSD_2.0_HD

Signed-off-by: Andrey Porodko <panda@chelcom.ru>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

6 files changed, 342 insertions, 0 deletions

diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig
index 22077803e9a..bd656e8e6e4 100644
--- a/arch/arm/configs/davinci_all_defconfig
+++ b/arch/arm/configs/davinci_all_defconfig
@@ -210,6 +210,7 @@ CONFIG_ARCH_DAVINCI_DM365=y
 #
 CONFIG_MACH_DAVINCI_EVM=y
 CONFIG_MACH_SFFSDR=y
+CONFIG_MACH_NEUROS_OSD2=y
 CONFIG_MACH_DAVINCI_DM355_EVM=y
 CONFIG_MACH_DM355_LEOPARD=y
 CONFIG_MACH_DAVINCI_DM6467_EVM=y
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 89d5aa7d43a..033bfede6b6 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -65,6 +65,13 @@ config MACH_SFFSDR
 	  Say Y here to select the Lyrtech Small Form Factor
 	  Software Defined Radio (SFFSDR) board.
 
+config MACH_NEUROS_OSD2
+	bool "Neuros OSD2 Open Television Set Top Box"
+	depends on ARCH_DAVINCI_DM644x
+	help
+	  Configure this option to specify the whether the board used
+	  for development is a Neuros OSD2 Open Set Top Box.
+
 config MACH_DAVINCI_DM355_EVM
 	bool "TI DM355 EVM"
 	default ARCH_DAVINCI_DM355
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index 5eae1a9d369..eeb9230d884 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_CP_INTC)			+= cp_intc.o
 # Board specific
 obj-$(CONFIG_MACH_DAVINCI_EVM)  	+= board-dm644x-evm.o
 obj-$(CONFIG_MACH_SFFSDR)		+= board-sffsdr.o
+obj-$(CONFIG_MACH_NEUROS_OSD2)		+= board-neuros-osd2.o
 obj-$(CONFIG_MACH_DAVINCI_DM355_EVM)	+= board-dm355-evm.o
 obj-$(CONFIG_MACH_DM355_LEOPARD)	+= board-dm355-leopard.o
 obj-$(CONFIG_MACH_DAVINCI_DM6467_EVM)	+= board-dm646x-evm.o
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
new file mode 100644
index 00000000000..bd9ca079b69
--- /dev/null
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -0,0 +1,323 @@
+/*
+ * Neuros Technologies OSD2 board support
+ *
+ * Modified from original 644X-EVM board support.
+ * 2008 (c) Neuros Technology, LLC.
+ * 2009 (c) Jorge Luis Zapata Muga <jorgeluis.zapata@gmail.com>
+ * 2009 (c) Andrey A. Porodko <Andrey.Porodko@gmail.com>
+ *
+ * The Neuros OSD 2.0 is the hardware component of the Neuros Open
+ * Internet Television Platform. Hardware is very close to TI
+ * DM644X-EVM board. It has:
+ * 	DM6446M02 module with 256MB NAND, 256MB RAM, TLV320AIC32 AIC,
+ * 	USB, Ethernet, SD/MMC, UART, THS8200, TVP7000 for video.
+ * 	Additionaly realtime clock, IR remote control receiver,
+ * 	IR Blaster based on MSP430 (firmware although is different
+ * 	from used in DM644X-EVM), internal ATA-6 3.5” HDD drive
+ * 	with PATA interface, two muxed red-green leds.
+ *
+ * For more information please refer to
+ * 		http://wiki.neurostechnology.com/index.php/OSD_2.0_HD
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/dm644x.h>
+#include <mach/i2c.h>
+#include <mach/serial.h>
+#include <mach/mux.h>
+#include <mach/nand.h>
+#include <mach/mmc.h>
+#include <mach/usb.h>
+
+#define NEUROS_OSD2_PHY_MASK		0x2
+#define NEUROS_OSD2_MDIO_FREQUENCY	2200000 /* PHY bus frequency */
+
+#define DAVINCI_CFC_ATA_BASE		 0x01C66000
+
+#define DAVINCI_ASYNC_EMIF_CONTROL_BASE	 0x01e00000
+#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000
+
+#define LXT971_PHY_ID			0x001378e2
+#define LXT971_PHY_MASK			0xfffffff0
+
+#define	NTOSD2_AUDIOSOC_I2C_ADDR	0x18
+#define	NTOSD2_MSP430_I2C_ADDR		0x59
+#define	NTOSD2_MSP430_IRQ		2
+
+/* Neuros OSD2 has a Samsung 256 MByte NAND flash (Dev ID of 0xAA,
+ * 2048 blocks in the device, 64 pages per block, 2048 bytes per
+ * page.
+ */
+
+#define NAND_BLOCK_SIZE		SZ_128K
+
+struct mtd_partition davinci_ntosd2_nandflash_partition[] = {
+	{
+		/* UBL (a few copies) plus U-Boot */
+		.name		= "bootloader",
+		.offset		= 0,
+		.size		= 15 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE, /* force read-only */
+	}, {
+		/* U-Boot environment */
+		.name		= "params",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 1 * NAND_BLOCK_SIZE,
+		.mask_flags	= 0,
+	}, {
+		/* Kernel */
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_4M,
+		.mask_flags	= 0,
+	}, {
+		/* File System */
+		.name		= "filesystem",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0,
+	}
+	/* A few blocks at end hold a flash Bad Block Table. */
+};
+
+static struct davinci_nand_pdata davinci_ntosd2_nandflash_data = {
+	.parts		= davinci_ntosd2_nandflash_partition,
+	.nr_parts	= ARRAY_SIZE(davinci_ntosd2_nandflash_partition),
+	.ecc_mode	= NAND_ECC_HW,
+	.options	= NAND_USE_FLASH_BBT,
+};
+
+static struct resource davinci_ntosd2_nandflash_resource[] = {
+	{
+		.start		= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
+		.end		= DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= DAVINCI_ASYNC_EMIF_CONTROL_BASE,
+		.end		= DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device davinci_ntosd2_nandflash_device = {
+	.name		= "davinci_nand",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &davinci_ntosd2_nandflash_data,
+	},
+	.num_resources	= ARRAY_SIZE(davinci_ntosd2_nandflash_resource),
+	.resource	= davinci_ntosd2_nandflash_resource,
+};
+
+static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device davinci_fb_device = {
+	.name		= "davincifb",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= &davinci_fb_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.num_resources = 0,
+};
+
+static struct resource ide_resources[] = {
+	{
+		.start		= DAVINCI_CFC_ATA_BASE,
+		.end		= DAVINCI_CFC_ATA_BASE + 0x7ff,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= IRQ_IDE,
+		.end		= IRQ_IDE,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ide_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device ide_dev = {
+	.name		= "palm_bk3710",
+	.id		= -1,
+	.resource	= ide_resources,
+	.num_resources	= ARRAY_SIZE(ide_resources),
+	.dev = {
+		.dma_mask		= &ide_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+static struct snd_platform_data dm644x_ntosd2_snd_data;
+
+static struct gpio_led ntosd2_leds[] = {
+	{ .name = "led1_green", .gpio = GPIO(10), },
+	{ .name = "led1_red",   .gpio = GPIO(11), },
+	{ .name = "led2_green", .gpio = GPIO(12), },
+	{ .name = "led2_red",   .gpio = GPIO(13), },
+};
+
+static struct gpio_led_platform_data ntosd2_leds_data = {
+	.num_leds	= ARRAY_SIZE(ntosd2_leds),
+	.leds		= ntosd2_leds,
+};
+
+static struct platform_device ntosd2_leds_dev = {
+	.name = "leds-gpio",
+	.id   = -1,
+	.dev = {
+		.platform_data 		= &ntosd2_leds_data,
+	},
+};
+
+
+static struct platform_device *davinci_ntosd2_devices[] __initdata = {
+	&davinci_fb_device,
+	&ntosd2_leds_dev,
+};
+
+static struct davinci_uart_config uart_config __initdata = {
+	.enabled_uarts = (1 << 0),
+};
+
+static void __init davinci_ntosd2_map_io(void)
+{
+	dm644x_init();
+}
+
+/*
+ I2C initialization
+*/
+static struct davinci_i2c_platform_data ntosd2_i2c_pdata = {
+	.bus_freq	= 20 /* kHz */,
+	.bus_delay	= 100 /* usec */,
+};
+
+static struct i2c_board_info __initdata ntosd2_i2c_info[] =  {
+};
+
+static	int ntosd2_init_i2c(void)
+{
+	int	status;
+
+	davinci_init_i2c(&ntosd2_i2c_pdata);
+	status = gpio_request(NTOSD2_MSP430_IRQ, ntosd2_i2c_info[0].type);
+	if (status == 0) {
+		status = gpio_direction_input(NTOSD2_MSP430_IRQ);
+		if (status == 0) {
+			status = gpio_to_irq(NTOSD2_MSP430_IRQ);
+			if (status > 0) {
+				ntosd2_i2c_info[0].irq = status;
+				i2c_register_board_info(1,
+					ntosd2_i2c_info,
+					ARRAY_SIZE(ntosd2_i2c_info));
+			}
+		}
+	}
+	return status;
+}
+
+static struct davinci_mmc_config davinci_ntosd2_mmc_config = {
+	.wires		= 4,
+	.version	= MMC_CTLR_VERSION_1
+};
+
+
+#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
+	defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
+#define HAS_ATA 1
+#else
+#define HAS_ATA 0
+#endif
+
+#if defined(CONFIG_MTD_NAND_DAVINCI) || \
+	defined(CONFIG_MTD_NAND_DAVINCI_MODULE)
+#define HAS_NAND 1
+#else
+#define HAS_NAND 0
+#endif
+
+static __init void davinci_ntosd2_init(void)
+{
+	struct clk *aemif_clk;
+	struct davinci_soc_info *soc_info = &davinci_soc_info;
+	int	status;
+
+	aemif_clk = clk_get(NULL, "aemif");
+	clk_enable(aemif_clk);
+
+	if (HAS_ATA) {
+		if (HAS_NAND)
+			pr_warning("WARNING: both IDE and Flash are "
+				"enabled, but they share AEMIF pins.\n"
+				"\tDisable IDE for NAND/NOR support.\n");
+		davinci_cfg_reg(DM644X_HPIEN_DISABLE);
+		davinci_cfg_reg(DM644X_ATAEN);
+		davinci_cfg_reg(DM644X_HDIREN);
+		platform_device_register(&ide_dev);
+	} else if (HAS_NAND) {
+		davinci_cfg_reg(DM644X_HPIEN_DISABLE);
+		davinci_cfg_reg(DM644X_ATAEN_DISABLE);
+
+		/* only one device will be jumpered and detected */
+		if (HAS_NAND)
+			platform_device_register(
+					&davinci_ntosd2_nandflash_device);
+	}
+
+	platform_add_devices(davinci_ntosd2_devices,
+				ARRAY_SIZE(davinci_ntosd2_devices));
+
+	/* Initialize I2C interface specific for this board */
+	status = ntosd2_init_i2c();
+	if (status < 0)
+		pr_warning("davinci_ntosd2_init: msp430 irq setup failed:"
+						"	 %d\n", status);
+
+	davinci_serial_init(&uart_config);
+	dm644x_init_asp(&dm644x_ntosd2_snd_data);
+
+	soc_info->emac_pdata->phy_mask = NEUROS_OSD2_PHY_MASK;
+	soc_info->emac_pdata->mdio_max_freq = NEUROS_OSD2_MDIO_FREQUENCY;
+
+	davinci_setup_usb(1000, 8);
+	/*
+	 * Mux the pins to be GPIOs, VLYNQEN is already done at startup.
+	 * The AEAWx are five new AEAW pins that can be muxed by separately.
+	 * They are a bitmask for GPIO management. According TI
+	 * documentation (http://www.ti.com/lit/gpn/tms320dm6446) to employ
+	 * gpio(10,11,12,13) for leds any combination of bits works except
+	 * four last. So we are to reset all five.
+	 */
+	davinci_cfg_reg(DM644X_AEAW0);
+	davinci_cfg_reg(DM644X_AEAW1);
+	davinci_cfg_reg(DM644X_AEAW2);
+	davinci_cfg_reg(DM644X_AEAW3);
+	davinci_cfg_reg(DM644X_AEAW4);
+
+	davinci_setup_mmc(0, &davinci_ntosd2_mmc_config);
+}
+
+static __init void davinci_ntosd2_irq_init(void)
+{
+	davinci_irq_init();
+}
+
+MACHINE_START(NEUROS_OSD2, "Neuros OSD2")
+	/* Maintainer: Neuros Technologies <neuros@groups.google.com> */
+	.phys_io	= IO_PHYS,
+	.io_pg_offst	= (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
+	.boot_params	= (DAVINCI_DDR_BASE + 0x100),
+	.map_io		 = davinci_ntosd2_map_io,
+	.init_irq	= davinci_ntosd2_irq_init,
+	.timer		= &davinci_timer,
+	.init_machine = davinci_ntosd2_init,
+MACHINE_END
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 84d3d26831c..2cd008156de 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -368,6 +368,11 @@ MUX_CFG(DM644X, ATAEN_DISABLE,	0,   17,    1,	  0,	 true)
 MUX_CFG(DM644X, HPIEN_DISABLE,	0,   29,    1,	  0,	 true)
 
 MUX_CFG(DM644X, AEAW,		0,   0,     31,	  31,	 true)
+MUX_CFG(DM644X, AEAW0,		0,   0,     1,	  0,	 true)
+MUX_CFG(DM644X, AEAW1,		0,   1,     1,	  0,	 true)
+MUX_CFG(DM644X, AEAW2,		0,   2,     1,	  0,	 true)
+MUX_CFG(DM644X, AEAW3,		0,   3,     1,	  0,	 true)
+MUX_CFG(DM644X, AEAW4,		0,   4,     1,	  0,	 true)
 
 MUX_CFG(DM644X, MSTK,		1,   9,     1,	  0,	 false)
 
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index d41ad16966b..b60c693985f 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -40,6 +40,11 @@ enum davinci_dm644x_index {
 
 	/* AEAW functions */
 	DM644X_AEAW,
+	DM644X_AEAW0,
+	DM644X_AEAW1,
+	DM644X_AEAW2,
+	DM644X_AEAW3,
+	DM644X_AEAW4,
 
 	/* Memory Stick */
 	DM644X_MSTK,