root/arch/arm/mach-davinci/board-neuros-osd2.c

DEFINITIONS

1. davinci_ntosd2_map_io
2. davinci_ntosd2_init

   1 /*
   2  * Neuros Technologies OSD2 board support
   3  *
   4  * Modified from original 644X-EVM board support.
   5  * 2008 (c) Neuros Technology, LLC.
   6  * 2009 (c) Jorge Luis Zapata Muga <jorgeluis.zapata@gmail.com>
   7  * 2009 (c) Andrey A. Porodko <Andrey.Porodko@gmail.com>
   8  *
   9  * The Neuros OSD 2.0 is the hardware component of the Neuros Open
  10  * Internet Television Platform. Hardware is very close to TI
  11  * DM644X-EVM board. It has:
  12  *      DM6446M02 module with 256MB NAND, 256MB RAM, TLV320AIC32 AIC,
  13  *      USB, Ethernet, SD/MMC, UART, THS8200, TVP7000 for video.
  14  *      Additionally realtime clock, IR remote control receiver,
  15  *      IR Blaster based on MSP430 (firmware although is different
  16  *      from used in DM644X-EVM), internal ATA-6 3.5” HDD drive
  17  *      with PATA interface, two muxed red-green leds.
  18  *
  19  * For more information please refer to
  20  *              http://wiki.neurostechnology.com/index.php/OSD_2.0_HD
  21  *
  22  * This file is licensed under the terms of the GNU General Public
  23  * License version 2. This program is licensed "as is" without any
  24  * warranty of any kind, whether express or implied.
  25  */
  26 #include <linux/platform_device.h>
  27 #include <linux/gpio.h>
  28 #include <linux/leds.h>
  29 #include <linux/mtd/partitions.h>
  30 #include <linux/platform_data/gpio-davinci.h>
  31 #include <linux/platform_data/i2c-davinci.h>
  32 #include <linux/platform_data/mmc-davinci.h>
  33 #include <linux/platform_data/mtd-davinci.h>
  34 #include <linux/platform_data/usb-davinci.h>
  35 
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 
  39 #include <mach/common.h>
  40 #include <mach/serial.h>
  41 #include <mach/mux.h>
  42 
  43 #include "davinci.h"
  44 
  45 #define NEUROS_OSD2_PHY_ID              "davinci_mdio-0:01"
  46 #define LXT971_PHY_ID                   0x001378e2
  47 #define LXT971_PHY_MASK                 0xfffffff0
  48 
  49 #define NTOSD2_AUDIOSOC_I2C_ADDR        0x18
  50 #define NTOSD2_MSP430_I2C_ADDR          0x59
  51 #define NTOSD2_MSP430_IRQ               2
  52 
  53 /* Neuros OSD2 has a Samsung 256 MByte NAND flash (Dev ID of 0xAA,
  54  * 2048 blocks in the device, 64 pages per block, 2048 bytes per
  55  * page.
  56  */
  57 
  58 #define NAND_BLOCK_SIZE         SZ_128K
  59 
  60 static struct mtd_partition davinci_ntosd2_nandflash_partition[] = {
  61         {
  62                 /* UBL (a few copies) plus U-Boot */
  63                 .name           = "bootloader",
  64                 .offset         = 0,
  65                 .size           = 15 * NAND_BLOCK_SIZE,
  66                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  67         }, {
  68                 /* U-Boot environment */
  69                 .name           = "params",
  70                 .offset         = MTDPART_OFS_APPEND,
  71                 .size           = 1 * NAND_BLOCK_SIZE,
  72                 .mask_flags     = 0,
  73         }, {
  74                 /* Kernel */
  75                 .name           = "kernel",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = SZ_4M,
  78                 .mask_flags     = 0,
  79         }, {
  80                 /* File System */
  81                 .name           = "filesystem",
  82                 .offset         = MTDPART_OFS_APPEND,
  83                 .size           = MTDPART_SIZ_FULL,
  84                 .mask_flags     = 0,
  85         }
  86         /* A few blocks at end hold a flash Bad Block Table. */
  87 };
  88 
  89 static struct davinci_nand_pdata davinci_ntosd2_nandflash_data = {
  90         .core_chipsel   = 0,
  91         .parts          = davinci_ntosd2_nandflash_partition,
  92         .nr_parts       = ARRAY_SIZE(davinci_ntosd2_nandflash_partition),
  93         .ecc_mode       = NAND_ECC_HW,
  94         .ecc_bits       = 1,
  95         .bbt_options    = NAND_BBT_USE_FLASH,
  96 };
  97 
  98 static struct resource davinci_ntosd2_nandflash_resource[] = {
  99         {
 100                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 101                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 102                 .flags          = IORESOURCE_MEM,
 103         }, {
 104                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 105                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 106                 .flags          = IORESOURCE_MEM,
 107         },
 108 };
 109 
 110 static struct platform_device davinci_ntosd2_nandflash_device = {
 111         .name           = "davinci_nand",
 112         .id             = 0,
 113         .dev            = {
 114                 .platform_data  = &davinci_ntosd2_nandflash_data,
 115         },
 116         .num_resources  = ARRAY_SIZE(davinci_ntosd2_nandflash_resource),
 117         .resource       = davinci_ntosd2_nandflash_resource,
 118 };
 119 
 120 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 121 
 122 static struct platform_device davinci_fb_device = {
 123         .name           = "davincifb",
 124         .id             = -1,
 125         .dev = {
 126                 .dma_mask               = &davinci_fb_dma_mask,
 127                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 128         },
 129         .num_resources = 0,
 130 };
 131 
 132 static const struct gpio_led ntosd2_leds[] = {
 133         { .name = "led1_green", .gpio = 10, },
 134         { .name = "led1_red",   .gpio = 11, },
 135         { .name = "led2_green", .gpio = 12, },
 136         { .name = "led2_red",   .gpio = 13, },
 137 };
 138 
 139 static struct gpio_led_platform_data ntosd2_leds_data = {
 140         .num_leds       = ARRAY_SIZE(ntosd2_leds),
 141         .leds           = ntosd2_leds,
 142 };
 143 
 144 static struct platform_device ntosd2_leds_dev = {
 145         .name = "leds-gpio",
 146         .id   = -1,
 147         .dev = {
 148                 .platform_data          = &ntosd2_leds_data,
 149         },
 150 };
 151 
 152 
 153 static struct platform_device *davinci_ntosd2_devices[] __initdata = {
 154         &davinci_fb_device,
 155         &ntosd2_leds_dev,
 156 };
 157 
 158 static void __init davinci_ntosd2_map_io(void)
 159 {
 160         dm644x_init();
 161 }
 162 
 163 static struct davinci_mmc_config davinci_ntosd2_mmc_config = {
 164         .wires          = 4,
 165 };
 166 
 167 #define HAS_ATA         (IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 168                          IS_ENABLED(CONFIG_PATA_BK3710))
 169 
 170 #define HAS_NAND        IS_ENABLED(CONFIG_MTD_NAND_DAVINCI)
 171 
 172 static __init void davinci_ntosd2_init(void)
 173 {
 174         int ret;
 175         struct clk *aemif_clk;
 176         struct davinci_soc_info *soc_info = &davinci_soc_info;
 177 
 178         dm644x_register_clocks();
 179 
 180         dm644x_init_devices();
 181 
 182         ret = dm644x_gpio_register();
 183         if (ret)
 184                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 185 
 186         aemif_clk = clk_get(NULL, "aemif");
 187         clk_prepare_enable(aemif_clk);
 188 
 189         if (HAS_ATA) {
 190                 if (HAS_NAND)
 191                         pr_warn("WARNING: both IDE and Flash are enabled, but they share AEMIF pins\n"
 192                                 "\tDisable IDE for NAND/NOR support\n");
 193                 davinci_init_ide();
 194         } else if (HAS_NAND) {
 195                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 196                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 197 
 198                 /* only one device will be jumpered and detected */
 199                 if (HAS_NAND)
 200                         platform_device_register(
 201                                         &davinci_ntosd2_nandflash_device);
 202         }
 203 
 204         platform_add_devices(davinci_ntosd2_devices,
 205                                 ARRAY_SIZE(davinci_ntosd2_devices));
 206 
 207         davinci_serial_init(dm644x_serial_device);
 208         dm644x_init_asp();
 209 
 210         soc_info->emac_pdata->phy_id = NEUROS_OSD2_PHY_ID;
 211 
 212         davinci_setup_usb(1000, 8);
 213         /*
 214          * Mux the pins to be GPIOs, VLYNQEN is already done at startup.
 215          * The AEAWx are five new AEAW pins that can be muxed by separately.
 216          * They are a bitmask for GPIO management. According TI
 217          * documentation (http://www.ti.com/lit/gpn/tms320dm6446) to employ
 218          * gpio(10,11,12,13) for leds any combination of bits works except
 219          * four last. So we are to reset all five.
 220          */
 221         davinci_cfg_reg(DM644X_AEAW0);
 222         davinci_cfg_reg(DM644X_AEAW1);
 223         davinci_cfg_reg(DM644X_AEAW2);
 224         davinci_cfg_reg(DM644X_AEAW3);
 225         davinci_cfg_reg(DM644X_AEAW4);
 226 
 227         davinci_setup_mmc(0, &davinci_ntosd2_mmc_config);
 228 }
 229 
 230 MACHINE_START(NEUROS_OSD2, "Neuros OSD2")
 231         /* Maintainer: Neuros Technologies <neuros@groups.google.com> */
 232         .atag_offset    = 0x100,
 233         .map_io          = davinci_ntosd2_map_io,
 234         .init_irq       = dm644x_init_irq,
 235         .init_time      = dm644x_init_time,
 236         .init_machine = davinci_ntosd2_init,
 237         .init_late      = davinci_init_late,
 238         .dma_zone_size  = SZ_128M,
 239 MACHINE_END