arch/arm/mach-msm/board-qsd8x50.c

   1 /* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 and
   5  * only version 2 as published by the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program; if not, write to the Free Software
  14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  15  * 02110-1301, USA.
  16  */
  17 #include <linux/gpio.h>
  18 #include <linux/kernel.h>
  19 #include <linux/irq.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/usb/msm_hsusb.h>
  23 #include <linux/err.h>
  24 #include <linux/clkdev.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/io.h>
  29 #include <asm/setup.h>
  30
  31 #include <mach/irqs.h>
  32 #include <mach/sirc.h>
  33 #include <mach/vreg.h>
  34 #include <mach/clk.h>
  35 #include <linux/platform_data/mmc-msm_sdcc.h>
  36
  37 #include "devices.h"
  38 #include "common.h"
  39
  40 static const resource_size_t qsd8x50_surf_smc91x_base __initconst = 0x70000300;
  41 static const unsigned        qsd8x50_surf_smc91x_gpio __initconst = 156;
  42
  43 /* Leave smc91x resources empty here, as we'll fill them in
  44  * at run-time: they vary from board to board, and the true
  45  * configuration won't be known until boot.
  46  */
  47 static struct resource smc91x_resources[] = {
  48         [0] = {
  49                 .flags = IORESOURCE_MEM,
  50         },
  51         [1] = {
  52                 .flags = IORESOURCE_IRQ,
  53         },
  54 };
  55
  56 static struct platform_device smc91x_device = {
  57         .name           = "smc91x",
  58         .id             = 0,
  59         .num_resources  = ARRAY_SIZE(smc91x_resources),
  60         .resource       = smc91x_resources,
  61 };
  62
  63 static int __init msm_init_smc91x(void)
  64 {
  65         if (machine_is_qsd8x50_surf()) {
  66                 smc91x_resources[0].start = qsd8x50_surf_smc91x_base;
  67                 smc91x_resources[0].end   = qsd8x50_surf_smc91x_base + 0xff;
  68                 smc91x_resources[1].start =
  69                         gpio_to_irq(qsd8x50_surf_smc91x_gpio);
  70                 smc91x_resources[1].end   =
  71                         gpio_to_irq(qsd8x50_surf_smc91x_gpio);
  72                 platform_device_register(&smc91x_device);
  73         }
  74
  75         return 0;
  76 }
  77 module_init(msm_init_smc91x);
  78
  79 static int hsusb_phy_init_seq[] = {
  80         0x08, 0x31,     /* Increase HS Driver Amplitude */
  81         0x20, 0x32,     /* Enable and set Pre-Emphasis Depth to 10% */
  82         -1
  83 };
  84
  85 static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
  86 {
  87         int ret;
  88
  89         if (assert) {
  90                 ret = clk_reset(link_clk, CLK_RESET_ASSERT);
  91                 if (ret)
  92                         pr_err("usb hs_clk assert failed\n");
  93         } else {
  94                 ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
  95                 if (ret)
  96                         pr_err("usb hs_clk deassert failed\n");
  97         }
  98         return ret;
  99 }
 100
 101 static int hsusb_phy_clk_reset(struct clk *phy_clk)
 102 {
 103         int ret;
 104
 105         ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
 106         if (ret) {
 107                 pr_err("usb phy clk assert failed\n");
 108                 return ret;
 109         }
 110         usleep_range(10000, 12000);
 111         ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
 112         if (ret)
 113                 pr_err("usb phy clk deassert failed\n");
 114         return ret;
 115 }
 116
 117 static struct msm_otg_platform_data msm_otg_pdata = {
 118         .phy_init_seq           = hsusb_phy_init_seq,
 119         .mode                   = USB_PERIPHERAL,
 120         .otg_control            = OTG_PHY_CONTROL,
 121         .link_clk_reset         = hsusb_link_clk_reset,
 122         .phy_clk_reset          = hsusb_phy_clk_reset,
 123 };
 124
 125 static struct platform_device *devices[] __initdata = {
 126         &msm_clock_8x50,
 127         &msm_device_gpio_8x50,
 128         &msm_device_uart3,
 129         &msm_device_smd,
 130         &msm_device_otg,
 131         &msm_device_hsusb,
 132         &msm_device_hsusb_host,
 133 };
 134
 135 static struct msm_mmc_gpio sdc1_gpio_cfg[] = {
 136         {51, "sdc1_dat_3"},
 137         {52, "sdc1_dat_2"},
 138         {53, "sdc1_dat_1"},
 139         {54, "sdc1_dat_0"},
 140         {55, "sdc1_cmd"},
 141         {56, "sdc1_clk"}
 142 };
 143
 144 static struct vreg *vreg_mmc;
 145 static unsigned long vreg_sts;
 146
 147 static uint32_t msm_sdcc_setup_power(struct device *dv, unsigned int vdd)
 148 {
 149         int rc = 0;
 150         struct platform_device *pdev;
 151
 152         pdev = container_of(dv, struct platform_device, dev);
 153
 154         if (vdd == 0) {
 155                 if (!vreg_sts)
 156                         return 0;
 157
 158                 clear_bit(pdev->id, &vreg_sts);
 159
 160                 if (!vreg_sts) {
 161                         rc = vreg_disable(vreg_mmc);
 162                         if (rc)
 163                                 pr_err("vreg_mmc disable failed for slot "
 164                                                 "%d: %d\n", pdev->id, rc);
 165                 }
 166                 return 0;
 167         }
 168
 169         if (!vreg_sts) {
 170                 rc = vreg_set_level(vreg_mmc, 2900);
 171                 if (rc)
 172                         pr_err("vreg_mmc set level failed for slot %d: %d\n",
 173                                         pdev->id, rc);
 174                 rc = vreg_enable(vreg_mmc);
 175                 if (rc)
 176                         pr_err("vreg_mmc enable failed for slot %d: %d\n",
 177                                         pdev->id, rc);
 178         }
 179         set_bit(pdev->id, &vreg_sts);
 180         return 0;
 181 }
 182
 183 static struct msm_mmc_gpio_data sdc1_gpio = {
 184         .gpio = sdc1_gpio_cfg,
 185         .size = ARRAY_SIZE(sdc1_gpio_cfg),
 186 };
 187
 188 static struct msm_mmc_platform_data qsd8x50_sdc1_data = {
 189         .ocr_mask       = MMC_VDD_27_28 | MMC_VDD_28_29,
 190         .translate_vdd  = msm_sdcc_setup_power,
 191         .gpio_data = &sdc1_gpio,
 192 };
 193
 194 static void __init qsd8x50_init_mmc(void)
 195 {
 196         vreg_mmc = vreg_get(NULL, "gp5");
 197
 198         if (IS_ERR(vreg_mmc)) {
 199                 pr_err("vreg get for vreg_mmc failed (%ld)\n",
 200                                 PTR_ERR(vreg_mmc));
 201                 return;
 202         }
 203
 204         msm_add_sdcc(1, &qsd8x50_sdc1_data, 0, 0);
 205 }
 206
 207 static void __init qsd8x50_map_io(void)
 208 {
 209         msm_map_qsd8x50_io();
 210 }
 211
 212 static void __init qsd8x50_init_irq(void)
 213 {
 214         msm_init_irq();
 215         msm_init_sirc();
 216 }
 217
 218 static void __init qsd8x50_init(void)
 219 {
 220         msm_device_otg.dev.platform_data = &msm_otg_pdata;
 221         msm_device_hsusb.dev.parent = &msm_device_otg.dev;
 222         msm_device_hsusb_host.dev.parent = &msm_device_otg.dev;
 223         platform_add_devices(devices, ARRAY_SIZE(devices));
 224         qsd8x50_init_mmc();
 225 }
 226
 227 static void __init qsd8x50_init_late(void)
 228 {
 229         smd_debugfs_init();
 230 }
 231
 232 MACHINE_START(QSD8X50_SURF, "QCT QSD8X50 SURF")
 233         .atag_offset = 0x100,
 234         .map_io = qsd8x50_map_io,
 235         .init_irq = qsd8x50_init_irq,
 236         .init_machine = qsd8x50_init,
 237         .init_late = qsd8x50_init_late,
 238         .init_time      = qsd8x50_timer_init,
 239 MACHINE_END
 240
 241 MACHINE_START(QSD8X50A_ST1_5, "QCT QSD8X50A ST1.5")
 242         .atag_offset = 0x100,
 243         .map_io = qsd8x50_map_io,
 244         .init_irq = qsd8x50_init_irq,
 245         .init_machine = qsd8x50_init,
 246         .init_late = qsd8x50_init_late,
 247         .init_time      = qsd8x50_timer_init,
 248 MACHINE_END