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/hsmmc.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
  51 #define NAND_BLOCK_SIZE SZ_128K
  52 #define GPMC_CS0_BASE  0x60
  53 #define GPMC_CS_SIZE   0x30
  54
  55 static struct mtd_partition omap3pandora_nand_partitions[] = {
  56         {
  57                 .name           = "xloader",
  58                 .offset         = 0,                    /* Offset = 0x00000 */
  59                 .size           = 4 * NAND_BLOCK_SIZE,
  60                 .mask_flags     = MTD_WRITEABLE
  61         }, {
  62                 .name           = "uboot",
  63                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  64                 .size           = 14 * NAND_BLOCK_SIZE,
  65         }, {
  66                 .name           = "uboot environment",
  67                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
  68                 .size           = 2 * NAND_BLOCK_SIZE,
  69         }, {
  70                 .name           = "linux",
  71                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  72                 .size           = 32 * NAND_BLOCK_SIZE,
  73         }, {
  74                 .name           = "rootfs",
  75                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  76                 .size           = MTDPART_SIZ_FULL,
  77         },
  78 };
  79
  80 static struct omap_nand_platform_data omap3pandora_nand_data = {
  81         .parts          = omap3pandora_nand_partitions,
  82         .nr_parts       = ARRAY_SIZE(omap3pandora_nand_partitions),
  83         .dma_channel    = -1,   /* disable DMA in OMAP NAND driver */
  84 };
  85
  86 static struct resource omap3pandora_nand_resource[] = {
  87         {
  88                 .flags          = IORESOURCE_MEM,
  89         },
  90 };
  91
  92 static struct platform_device omap3pandora_nand_device = {
  93         .name           = "omap2-nand",
  94         .id             = -1,
  95         .dev            = {
  96                 .platform_data  = &omap3pandora_nand_data,
  97         },
  98         .num_resources  = ARRAY_SIZE(omap3pandora_nand_resource),
  99         .resource       = omap3pandora_nand_resource,
 100 };
 101
 102 static void __init omap3pandora_flash_init(void)
 103 {
 104         u8 cs = 0;
 105         u8 nandcs = GPMC_CS_NUM + 1;
 106
 107         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 108
 109         /* find out the chip-select on which NAND exists */
 110         while (cs < GPMC_CS_NUM) {
 111                 u32 ret = 0;
 112                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 113
 114                 if ((ret & 0xC00) == 0x800) {
 115                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 116                         if (nandcs > GPMC_CS_NUM)
 117                                 nandcs = cs;
 118                 }
 119                 cs++;
 120         }
 121
 122         if (nandcs > GPMC_CS_NUM) {
 123                 printk(KERN_INFO "NAND: Unable to find configuration "
 124                                  "in GPMC\n ");
 125                 return;
 126         }
 127
 128         if (nandcs < GPMC_CS_NUM) {
 129                 omap3pandora_nand_data.cs = nandcs;
 130                 omap3pandora_nand_data.gpmc_cs_baseaddr = (void *)
 131                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 132                 omap3pandora_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 133
 134                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 135                 if (platform_device_register(&omap3pandora_nand_device) < 0)
 136                         printk(KERN_ERR "Unable to register NAND device\n");
 137         }
 138 }
 139
 140 static struct omap_uart_config omap3pandora_uart_config __initdata = {
 141         .enabled_uarts  = (1 << 2), /* UART3 */
 142 };
 143
 144 static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
 145         .gpio_base      = OMAP_MAX_GPIO_LINES,
 146         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 147         .irq_end        = TWL4030_GPIO_IRQ_END,
 148 };
 149
 150 static struct twl4030_usb_data omap3pandora_usb_data = {
 151         .usb_mode       = T2_USB_MODE_ULPI,
 152 };
 153
 154 static struct twl4030_platform_data omap3pandora_twldata = {
 155         .irq_base       = TWL4030_IRQ_BASE,
 156         .irq_end        = TWL4030_IRQ_END,
 157         .gpio           = &omap3pandora_gpio_data,
 158         .usb            = &omap3pandora_usb_data,
 159 };
 160
 161 static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
 162         {
 163                 I2C_BOARD_INFO("twl4030", 0x48),
 164                 .flags = I2C_CLIENT_WAKE,
 165                 .irq = INT_34XX_SYS_NIRQ,
 166                 .platform_data = &omap3pandora_twldata,
 167         },
 168 };
 169
 170 static int __init omap3pandora_i2c_init(void)
 171 {
 172         omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
 173                         ARRAY_SIZE(omap3pandora_i2c_boardinfo));
 174         /* i2c2 pins are not connected */
 175         omap_register_i2c_bus(3, 400, NULL, 0);
 176         return 0;
 177 }
 178
 179 static void __init omap3pandora_init_irq(void)
 180 {
 181         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 182         omap_init_irq();
 183         omap_gpio_init();
 184 }
 185
 186 static struct platform_device omap3pandora_lcd_device = {
 187         .name           = "pandora_lcd",
 188         .id             = -1,
 189 };
 190
 191 static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
 192         .ctrl_name      = "internal",
 193 };
 194
 195 static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
 196         { OMAP_TAG_UART,        &omap3pandora_uart_config },
 197         { OMAP_TAG_LCD,         &omap3pandora_lcd_config },
 198 };
 199
 200 static struct platform_device *omap3pandora_devices[] __initdata = {
 201         &omap3pandora_lcd_device,
 202 };
 203
 204 static void __init omap3pandora_init(void)
 205 {
 206         omap3pandora_i2c_init();
 207         platform_add_devices(omap3pandora_devices, ARRAY_SIZE(omap3pandora_devices));
 208         omap_board_config = omap3pandora_config;
 209         omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
 210         omap_serial_init();
 211         hsmmc_init();
 212         usb_musb_init();
 213         usb_ehci_init();
 214         omap3pandora_flash_init();
 215 }
 216
 217 static void __init omap3pandora_map_io(void)
 218 {
 219         omap2_set_globals_343x();
 220         omap2_map_common_io();
 221 }
 222
 223 MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
 224         .phys_io        = 0x48000000,
 225         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 226         .boot_params    = 0x80000100,
 227         .map_io         = omap3pandora_map_io,
 228         .init_irq       = omap3pandora_init_irq,
 229         .init_machine   = omap3pandora_init,
 230         .timer          = &omap_timer,
 231 MACHINE_END