arch/arm/mach-msm/board-trout.c

   1 /* linux/arch/arm/mach-msm/board-trout.c
   2  *
   3  * Copyright (C) 2009 Google, Inc.
   4  * Author: Brian Swetland <swetland@google.com>
   5  *
   6  * This software is licensed under the terms of the GNU General Public
   7  * License version 2, as published by the Free Software Foundation, and
   8  * may be copied, distributed, and modified under those terms.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16 #define pr_fmt(fmt) "%s: " fmt, __func__
  17
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/clkdev.h>
  22 #include <linux/memblock.h>
  23
  24 #include <asm/system_info.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/setup.h>
  29
  30 #include <mach/hardware.h>
  31 #include <mach/msm_iomap.h>
  32
  33 #include "devices.h"
  34 #include "board-trout.h"
  35 #include "common.h"
  36
  37 extern int trout_init_mmc(unsigned int);
  38
  39 static struct platform_device *devices[] __initdata = {
  40         &msm_clock_7x01a,
  41         &msm_device_gpio_7201,
  42         &msm_device_uart3,
  43         &msm_device_smd,
  44         &msm_device_nand,
  45         &msm_device_hsusb,
  46         &msm_device_i2c,
  47 };
  48
  49 static void __init trout_init_early(void)
  50 {
  51         arch_ioremap_caller = __msm_ioremap_caller;
  52 }
  53
  54 static void __init trout_init_irq(void)
  55 {
  56         msm_init_irq();
  57 }
  58
  59 static void __init trout_fixup(struct tag *tags, char **cmdline)
  60 {
  61         memblock_add(PHYS_OFFSET, 101*SZ_1M);
  62 }
  63
  64 static void __init trout_init(void)
  65 {
  66         int rc;
  67
  68         platform_add_devices(devices, ARRAY_SIZE(devices));
  69
  70         if (IS_ENABLED(CONFIG_MMC)) {
  71                 rc = trout_init_mmc(system_rev);
  72                 if (rc)
  73                         pr_crit("MMC init failure (%d)\n", rc);
  74         }
  75 }
  76
  77 static struct map_desc trout_io_desc[] __initdata = {
  78         {
  79                 .virtual = (unsigned long)TROUT_CPLD_BASE,
  80                 .pfn     = __phys_to_pfn(TROUT_CPLD_START),
  81                 .length  = TROUT_CPLD_SIZE,
  82                 .type    = MT_DEVICE_NONSHARED
  83         }
  84 };
  85
  86 static void __init trout_map_io(void)
  87 {
  88         msm_map_common_io();
  89         iotable_init(trout_io_desc, ARRAY_SIZE(trout_io_desc));
  90
  91 #if defined(CONFIG_DEBUG_MSM_UART) && (CONFIG_DEBUG_UART_PHYS == 0xa9c00000)
  92         /* route UART3 to the "H2W" extended usb connector */
  93         writeb(0x80, TROUT_CPLD_BASE + 0x00);
  94 #endif
  95 }
  96
  97 static void __init trout_init_late(void)
  98 {
  99         smd_debugfs_init();
 100 }
 101
 102 MACHINE_START(TROUT, "HTC Dream")
 103         .atag_offset    = 0x100,
 104         .fixup          = trout_fixup,
 105         .map_io         = trout_map_io,
 106         .init_early     = trout_init_early,
 107         .init_irq       = trout_init_irq,
 108         .init_machine   = trout_init,
 109         .init_late      = trout_init_late,
 110         .init_time      = msm7x01_timer_init,
 111 MACHINE_END