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>

5 files changed, 341 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 89d5aa7d43a7..033bfede6b67 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 5eae1a9d3697..eeb9230d8844 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 000000000000..bd9ca079b69d
--- /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 84d3d26831c7..2cd008156dea 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 d41ad16966b7..b60c693985ff 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,