arch/arm/mach-msm/board-msm7x27.c

   1 /*
   2  * Copyright (C) 2007 Google, Inc.
   3  * Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
   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 #include <linux/gpio.h>
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/input.h>
  21 #include <linux/io.h>
  22 #include <linux/delay.h>
  23 #include <linux/power_supply.h>
  24
  25 #include <mach/hardware.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/flash.h>
  30 #include <asm/setup.h>
  31 #ifdef CONFIG_CACHE_L2X0
  32 #include <asm/hardware/cache-l2x0.h>
  33 #endif
  34
  35 #include <mach/vreg.h>
  36 #include <mach/mpp.h>
  37 #include <mach/board.h>
  38 #include <mach/msm_iomap.h>
  39
  40 #include <linux/mtd/nand.h>
  41 #include <linux/mtd/partitions.h>
  42
  43 #include "devices.h"
  44 #include "socinfo.h"
  45 #include "clock.h"
  46
  47 static struct resource smc91x_resources[] = {
  48         [0] = {
  49                 .start  = 0x9C004300,
  50                 .end    = 0x9C0043ff,
  51                 .flags  = IORESOURCE_MEM,
  52         },
  53         [1] = {
  54                 .start  = MSM_GPIO_TO_INT(132),
  55                 .end    = MSM_GPIO_TO_INT(132),
  56                 .flags  = IORESOURCE_IRQ,
  57         },
  58 };
  59
  60 static struct platform_device smc91x_device = {
  61         .name           = "smc91x",
  62         .id             = 0,
  63         .num_resources  = ARRAY_SIZE(smc91x_resources),
  64         .resource       = smc91x_resources,
  65 };
  66
  67 static struct platform_device *devices[] __initdata = {
  68         &msm_device_uart3,
  69         &msm_device_smd,
  70         &msm_device_dmov,
  71         &msm_device_nand,
  72         &smc91x_device,
  73 };
  74
  75 extern struct sys_timer msm_timer;
  76
  77 static void __init msm7x2x_init_irq(void)
  78 {
  79         msm_init_irq();
  80 }
  81
  82 static void __init msm7x2x_init(void)
  83 {
  84         if (socinfo_init() < 0)
  85                 BUG();
  86
  87         if (machine_is_msm7x25_ffa() || machine_is_msm7x27_ffa()) {
  88                 smc91x_resources[0].start = 0x98000300;
  89                 smc91x_resources[0].end = 0x980003ff;
  90                 smc91x_resources[1].start = MSM_GPIO_TO_INT(85);
  91                 smc91x_resources[1].end = MSM_GPIO_TO_INT(85);
  92                 if (gpio_tlmm_config(GPIO_CFG(85, 0,
  93                                               GPIO_INPUT,
  94                                               GPIO_PULL_DOWN,
  95                                               GPIO_2MA),
  96                                      GPIO_ENABLE)) {
  97                         printk(KERN_ERR
  98                                "%s: Err: Config GPIO-85 INT\n",
  99                                 __func__);
 100                 }
 101         }
 102
 103         platform_add_devices(devices, ARRAY_SIZE(devices));
 104 }
 105
 106 static void __init msm7x2x_map_io(void)
 107 {
 108         msm_map_common_io();
 109         /* Technically dependent on the SoC but using machine_is
 110          * macros since socinfo is not available this early and there
 111          * are plans to restructure the code which will eliminate the
 112          * need for socinfo.
 113          */
 114         if (machine_is_msm7x27_surf() || machine_is_msm7x27_ffa())
 115                 msm_clock_init(msm_clocks_7x27, msm_num_clocks_7x27);
 116
 117         if (machine_is_msm7x25_surf() || machine_is_msm7x25_ffa())
 118                 msm_clock_init(msm_clocks_7x25, msm_num_clocks_7x25);
 119
 120 #ifdef CONFIG_CACHE_L2X0
 121         if (machine_is_msm7x27_surf() || machine_is_msm7x27_ffa()) {
 122                 /* 7x27 has 256KB L2 cache:
 123                         64Kb/Way and 4-Way Associativity;
 124                         R/W latency: 3 cycles;
 125                         evmon/parity/share disabled. */
 126                 l2x0_init(MSM_L2CC_BASE, 0x00068012, 0xfe000000);
 127         }
 128 #endif
 129 }
 130
 131 static void __init msm7x2x_init_late(void)
 132 {
 133         smd_debugfs_init();
 134 }
 135
 136 MACHINE_START(MSM7X27_SURF, "QCT MSM7x27 SURF")
 137         .atag_offset    = 0x100,
 138         .map_io         = msm7x2x_map_io,
 139         .init_irq       = msm7x2x_init_irq,
 140         .init_machine   = msm7x2x_init,
 141         .init_late      = msm7x2x_init_late,
 142         .timer          = &msm_timer,
 143 MACHINE_END
 144
 145 MACHINE_START(MSM7X27_FFA, "QCT MSM7x27 FFA")
 146         .atag_offset    = 0x100,
 147         .map_io         = msm7x2x_map_io,
 148         .init_irq       = msm7x2x_init_irq,
 149         .init_machine   = msm7x2x_init,
 150         .init_late      = msm7x2x_init_late,
 151         .timer          = &msm_timer,
 152 MACHINE_END
 153
 154 MACHINE_START(MSM7X25_SURF, "QCT MSM7x25 SURF")
 155         .atag_offset    = 0x100,
 156         .map_io         = msm7x2x_map_io,
 157         .init_irq       = msm7x2x_init_irq,
 158         .init_machine   = msm7x2x_init,
 159         .init_late      = msm7x2x_init_late,
 160         .timer          = &msm_timer,
 161 MACHINE_END
 162
 163 MACHINE_START(MSM7X25_FFA, "QCT MSM7x25 FFA")
 164         .atag_offset    = 0x100,
 165         .map_io         = msm7x2x_map_io,
 166         .init_irq       = msm7x2x_init_irq,
 167         .init_machine   = msm7x2x_init,
 168         .init_late      = msm7x2x_init_late,
 169         .timer          = &msm_timer,
 170 MACHINE_END