arch/arm/mach-zynq/board_zc770_xm013.c

   1 /*
   2  *  Copyright (C) 2011 Xilinx
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * You should have received a copy of the GNU General Public License
  10  * along with this program; if not, write to the Free Software
  11  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  12  */
  13
  14 #include <linux/types.h>
  15 #include <linux/init.h>
  16 #include <linux/of_platform.h>
  17
  18 #include <linux/spi/spi.h>
  19 #include <linux/spi/eeprom.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/device.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <linux/spi/flash.h>
  24 #include <linux/xilinx_devices.h>
  25 #include <linux/i2c.h>
  26 #include <linux/i2c/si570.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30
  31 #include <asm/hardware/gic.h>
  32 #include "common.h"
  33
  34 #define IRQ_QSPI0               51
  35 #define IRQ_SPI1                58
  36
  37 #ifdef CONFIG_SPI_SPIDEV
  38
  39 static struct xspi_platform_data spi_0_pdata = {
  40         .speed_hz = 10000000,
  41         .bus_num = 0,
  42         .num_chipselect = 1
  43 };
  44
  45 #else
  46
  47 static struct spi_eeprom at25640_0 = {
  48         .name           = "at25LC640",
  49         .byte_len       = 8*1024,
  50         .page_size      = 32,
  51         .flags          = EE_ADDR2,
  52 };
  53
  54 static struct spi_board_info spi_devs[] __initdata = {
  55         {
  56                 .modalias = "at25",
  57                 .max_speed_hz = 1000000,
  58                 .bus_num = 0,
  59                 .chip_select = 2,
  60                 .platform_data = &at25640_0,
  61         },
  62 };
  63
  64 #endif
  65
  66 #if defined(CONFIG_SI570)
  67
  68 static struct si570_platform_data si570_0 = {
  69         .factory_fout = 10000000LL,
  70         .initial_fout = 133000000,
  71 };
  72
  73 static struct i2c_board_info __initdata si570_board_info[] = {
  74         {
  75                 I2C_BOARD_INFO("si570", 0x55),
  76                 .platform_data = &si570_0,
  77         }
  78 };
  79
  80 #endif /* CONFIG_SI570 */
  81
  82 extern struct sys_timer xttcpss_sys_timer;
  83
  84 static void __init board_zc770_xm013_init(void)
  85 {
  86
  87         /* initialize the xilinx common code before the board
  88          * specific
  89          */
  90         xilinx_init_machine();
  91
  92 #ifndef CONFIG_SPI_SPIDEV
  93         spi_register_board_info(&spi_devs[0],
  94                 ARRAY_SIZE(spi_devs));
  95 #endif
  96
  97 #if defined(CONFIG_SI570)
  98         i2c_register_board_info(0, si570_board_info,
  99                                 ARRAY_SIZE(si570_board_info));
 100 #endif
 101
 102 }
 103
 104 static const char *xilinx_dt_match[] = {
 105         "xlnx,zynq-zc770-xm013",
 106         NULL
 107 };
 108
 109 MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
 110         .map_io         = xilinx_map_io,
 111         .init_irq       = xilinx_irq_init,
 112         .handle_irq     = gic_handle_irq,
 113         .init_machine   = board_zc770_xm013_init,
 114         .timer          = &xttcpss_sys_timer,
 115         .dt_compat      = xilinx_dt_match,
 116         .reserve        = xilinx_memory_init,
 117 MACHINE_END