arch/arm/mach-omap2/board-omap3pandora.c

   1 /*
   2  * board-omap3pandora.c (Pandora Handheld Console)
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * version 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  *
  18  */
  19
  20 #include <linux/clk.h>
  21 #include <linux/delay.h>
  22 #include <linux/err.h>
  23 #include <linux/init.h>
  24 #include <linux/io.h>
  25 #include <linux/kernel.h>
  26 #include <linux/platform_device.h>
  27
  28 #include <linux/i2c/twl4030.h>
  29
  30 #include <linux/mtd/mtd.h>
  31 #include <linux/mtd/nand.h>
  32 #include <linux/mtd/partitions.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/flash.h>
  37 #include <asm/mach/map.h>
  38
  39 #include <mach/board.h>
  40 #include <mach/common.h>
  41 #include <mach/gpio.h>
  42 #include <mach/gpmc.h>
  43 #include <mach/hardware.h>
  44 #include <mach/mmc.h>
  45 #include <mach/nand.h>
  46 #include <mach/usb-ehci.h>
  47 #include <mach/usb-musb.h>
  48
  49 #include "sdram-micron-mt46h32m32lf-6.h"
  50 #include "mmc-twl4030.h"
  51
  52
  53 #define NAND_BLOCK_SIZE SZ_128K
  54 #define GPMC_CS0_BASE  0x60
  55 #define GPMC_CS_SIZE   0x30
  56
  57 static struct mtd_partition omap3pandora_nand_partitions[] = {
  58         {
  59                 .name           = "xloader",
  60                 .offset         = 0,                    /* Offset = 0x00000 */
  61                 .size           = 4 * NAND_BLOCK_SIZE,
  62                 .mask_flags     = MTD_WRITEABLE
  63         }, {
  64                 .name           = "uboot",
  65                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  66                 .size           = 14 * NAND_BLOCK_SIZE,
  67         }, {
  68                 .name           = "uboot environment",
  69                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
  70                 .size           = 2 * NAND_BLOCK_SIZE,
  71         }, {
  72                 .name           = "linux",
  73                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  74                 .size           = 32 * NAND_BLOCK_SIZE,
  75         }, {
  76                 .name           = "rootfs",
  77                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  78                 .size           = MTDPART_SIZ_FULL,
  79         },
  80 };
  81
  82 static struct omap_nand_platform_data omap3pandora_nand_data = {
  83         .parts          = omap3pandora_nand_partitions,
  84         .nr_parts       = ARRAY_SIZE(omap3pandora_nand_partitions),
  85         .dma_channel    = -1,   /* disable DMA in OMAP NAND driver */
  86 };
  87
  88 static struct resource omap3pandora_nand_resource[] = {
  89         {
  90                 .flags          = IORESOURCE_MEM,
  91         },
  92 };
  93
  94 static struct platform_device omap3pandora_nand_device = {
  95         .name           = "omap2-nand",
  96         .id             = -1,
  97         .dev            = {
  98                 .platform_data  = &omap3pandora_nand_data,
  99         },
 100         .num_resources  = ARRAY_SIZE(omap3pandora_nand_resource),
 101         .resource       = omap3pandora_nand_resource,
 102 };
 103
 104 static void __init omap3pandora_flash_init(void)
 105 {
 106         u8 cs = 0;
 107         u8 nandcs = GPMC_CS_NUM + 1;
 108
 109         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 110
 111         /* find out the chip-select on which NAND exists */
 112         while (cs < GPMC_CS_NUM) {
 113                 u32 ret = 0;
 114                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 115
 116                 if ((ret & 0xC00) == 0x800) {
 117                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 118                         if (nandcs > GPMC_CS_NUM)
 119                                 nandcs = cs;
 120                 }
 121                 cs++;
 122         }
 123
 124         if (nandcs > GPMC_CS_NUM) {
 125                 printk(KERN_INFO "NAND: Unable to find configuration "
 126                                  "in GPMC\n ");
 127                 return;
 128         }
 129
 130         if (nandcs < GPMC_CS_NUM) {
 131                 omap3pandora_nand_data.cs = nandcs;
 132                 omap3pandora_nand_data.gpmc_cs_baseaddr = (void *)
 133                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 134                 omap3pandora_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 135
 136                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 137                 if (platform_device_register(&omap3pandora_nand_device) < 0)
 138                         printk(KERN_ERR "Unable to register NAND device\n");
 139         }
 140 }
 141
 142 static struct omap_uart_config omap3pandora_uart_config __initdata = {
 143         .enabled_uarts  = (1 << 2), /* UART3 */
 144 };
 145
 146 static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
 147         .gpio_base      = OMAP_MAX_GPIO_LINES,
 148         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 149         .irq_end        = TWL4030_GPIO_IRQ_END,
 150 };
 151
 152 static struct twl4030_usb_data omap3pandora_usb_data = {
 153         .usb_mode       = T2_USB_MODE_ULPI,
 154 };
 155
 156 static struct twl4030_platform_data omap3pandora_twldata = {
 157         .irq_base       = TWL4030_IRQ_BASE,
 158         .irq_end        = TWL4030_IRQ_END,
 159         .gpio           = &omap3pandora_gpio_data,
 160         .usb            = &omap3pandora_usb_data,
 161 };
 162
 163 static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
 164         {
 165                 I2C_BOARD_INFO("twl4030", 0x48),
 166                 .flags = I2C_CLIENT_WAKE,
 167                 .irq = INT_34XX_SYS_NIRQ,
 168                 .platform_data = &omap3pandora_twldata,
 169         },
 170 };
 171
 172 static int __init omap3pandora_i2c_init(void)
 173 {
 174         omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
 175                         ARRAY_SIZE(omap3pandora_i2c_boardinfo));
 176         /* i2c2 pins are not connected */
 177         omap_register_i2c_bus(3, 400, NULL, 0);
 178         return 0;
 179 }
 180
 181 static void __init omap3pandora_init_irq(void)
 182 {
 183         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 184         omap_init_irq();
 185         omap_gpio_init();
 186 }
 187
 188 static struct platform_device omap3pandora_lcd_device = {
 189         .name           = "pandora_lcd",
 190         .id             = -1,
 191 };
 192
 193 static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
 194         .ctrl_name      = "internal",
 195 };
 196
 197 static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
 198         { OMAP_TAG_UART,        &omap3pandora_uart_config },
 199         { OMAP_TAG_LCD,         &omap3pandora_lcd_config },
 200 };
 201
 202 static struct platform_device *omap3pandora_devices[] __initdata = {
 203         &omap3pandora_lcd_device,
 204 };
 205
 206 static struct twl4030_hsmmc_info mmc[] __initdata = {
 207         {
 208                 .mmc            = 1,
 209                 .wires          = 4,
 210                 .gpio_cd        = -EINVAL,
 211         },
 212         {}      /* Terminator */
 213 };
 214
 215 static void __init omap3pandora_init(void)
 216 {
 217         omap3pandora_i2c_init();
 218         platform_add_devices(omap3pandora_devices, ARRAY_SIZE(omap3pandora_devices));
 219         omap_board_config = omap3pandora_config;
 220         omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
 221         omap_serial_init();
 222         hsmmc_init(mmc);
 223         usb_musb_init();
 224         usb_ehci_init();
 225         omap3pandora_flash_init();
 226 }
 227
 228 static void __init omap3pandora_map_io(void)
 229 {
 230         omap2_set_globals_343x();
 231         omap2_map_common_io();
 232 }
 233
 234 MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
 235         .phys_io        = 0x48000000,
 236         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 237         .boot_params    = 0x80000100,
 238         .map_io         = omap3pandora_map_io,
 239         .init_irq       = omap3pandora_init_irq,
 240         .init_machine   = omap3pandora_init,
 241         .timer          = &omap_timer,
 242 MACHINE_END