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 #include <linux/smc91x.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/io.h>
  30 #include <asm/setup.h>
  31
  32 #include <mach/irqs.h>
  33 #include <mach/sirc.h>
  34 #include <mach/vreg.h>
  35 #include <mach/clk.h>
  36 #include <linux/platform_data/mmc-msm_sdcc.h>
  37
  38 #include "devices.h"
  39 #include "common.h"
  40
  41 static const resource_size_t qsd8x50_surf_smc91x_base __initconst = 0x70000300;
  42 static const unsigned        qsd8x50_surf_smc91x_gpio __initconst = 156;
  43
  44 /* Leave smc91x resources empty here, as we'll fill them in
  45  * at run-time: they vary from board to board, and the true
  46  * configuration won't be known until boot.
  47  */
  48 static struct resource smc91x_resources[] = {
  49         [0] = {
  50                 .flags = IORESOURCE_MEM,
  51         },
  52         [1] = {
  53                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  54         },
  55 };
  56
  57 static struct smc91x_platdata smc91x_platdata = {
  58         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  59 };
  60
  61 static struct platform_device smc91x_device = {
  62         .name           = "smc91x",
  63         .id             = 0,
  64         .num_resources  = ARRAY_SIZE(smc91x_resources),
  65         .resource       = smc91x_resources,
  66         .dev.platform_data = &smc91x_platdata,
  67 };
  68
  69 static int __init msm_init_smc91x(void)
  70 {
  71         if (machine_is_qsd8x50_surf()) {
  72                 smc91x_resources[0].start = qsd8x50_surf_smc91x_base;
  73                 smc91x_resources[0].end   = qsd8x50_surf_smc91x_base + 0xff;
  74                 smc91x_resources[1].start =
  75                         gpio_to_irq(qsd8x50_surf_smc91x_gpio);
  76                 smc91x_resources[1].end   =
  77                         gpio_to_irq(qsd8x50_surf_smc91x_gpio);
  78                 platform_device_register(&smc91x_device);
  79         }
  80
  81         return 0;
  82 }
  83 module_init(msm_init_smc91x);
  84
  85 static int hsusb_phy_init_seq[] = {
  86         0x08, 0x31,     /* Increase HS Driver Amplitude */
  87         0x20, 0x32,     /* Enable and set Pre-Emphasis Depth to 10% */
  88         -1
  89 };
  90
  91 static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
  92 {
  93         int ret;
  94
  95         if (assert) {
  96                 ret = clk_reset(link_clk, CLK_RESET_ASSERT);
  97                 if (ret)
  98                         pr_err("usb hs_clk assert failed\n");
  99         } else {
 100                 ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
 101                 if (ret)
 102                         pr_err("usb hs_clk deassert failed\n");
 103         }
 104         return ret;
 105 }
 106
 107 static int hsusb_phy_clk_reset(struct clk *phy_clk)
 108 {
 109         int ret;
 110
 111         ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
 112         if (ret) {
 113                 pr_err("usb phy clk assert failed\n");
 114                 return ret;
 115         }
 116         usleep_range(10000, 12000);
 117         ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
 118         if (ret)
 119                 pr_err("usb phy clk deassert failed\n");
 120         return ret;
 121 }
 122
 123 static struct msm_otg_platform_data msm_otg_pdata = {
 124         .phy_init_seq           = hsusb_phy_init_seq,
 125         .mode                   = USB_DR_MODE_PERIPHERAL,
 126         .otg_control            = OTG_PHY_CONTROL,
 127         .link_clk_reset         = hsusb_link_clk_reset,
 128         .phy_clk_reset          = hsusb_phy_clk_reset,
 129 };
 130
 131 static struct platform_device *devices[] __initdata = {
 132         &msm_clock_8x50,
 133         &msm_device_gpio_8x50,
 134         &msm_device_uart3,
 135         &msm_device_smd,
 136         &msm_device_otg,
 137         &msm_device_hsusb,
 138         &msm_device_hsusb_host,
 139 };
 140
 141 static struct msm_mmc_gpio sdc1_gpio_cfg[] = {
 142         {51, "sdc1_dat_3"},
 143         {52, "sdc1_dat_2"},
 144         {53, "sdc1_dat_1"},
 145         {54, "sdc1_dat_0"},
 146         {55, "sdc1_cmd"},
 147         {56, "sdc1_clk"}
 148 };
 149
 150 static struct vreg *vreg_mmc;
 151 static unsigned long vreg_sts;
 152
 153 static uint32_t msm_sdcc_setup_power(struct device *dv, unsigned int vdd)
 154 {
 155         int rc = 0;
 156         struct platform_device *pdev;
 157
 158         pdev = container_of(dv, struct platform_device, dev);
 159
 160         if (vdd == 0) {
 161                 if (!vreg_sts)
 162                         return 0;
 163
 164                 clear_bit(pdev->id, &vreg_sts);
 165
 166                 if (!vreg_sts) {
 167                         rc = vreg_disable(vreg_mmc);
 168                         if (rc)
 169                                 pr_err("vreg_mmc disable failed for slot "
 170                                                 "%d: %d\n", pdev->id, rc);
 171                 }
 172                 return 0;
 173         }
 174
 175         if (!vreg_sts) {
 176                 rc = vreg_set_level(vreg_mmc, 2900);
 177                 if (rc)
 178                         pr_err("vreg_mmc set level failed for slot %d: %d\n",
 179                                         pdev->id, rc);
 180                 rc = vreg_enable(vreg_mmc);
 181                 if (rc)
 182                         pr_err("vreg_mmc enable failed for slot %d: %d\n",
 183                                         pdev->id, rc);
 184         }
 185         set_bit(pdev->id, &vreg_sts);
 186         return 0;
 187 }
 188
 189 static struct msm_mmc_gpio_data sdc1_gpio = {
 190         .gpio = sdc1_gpio_cfg,
 191         .size = ARRAY_SIZE(sdc1_gpio_cfg),
 192 };
 193
 194 static struct msm_mmc_platform_data qsd8x50_sdc1_data = {
 195         .ocr_mask       = MMC_VDD_27_28 | MMC_VDD_28_29,
 196         .translate_vdd  = msm_sdcc_setup_power,
 197         .gpio_data = &sdc1_gpio,
 198 };
 199
 200 static void __init qsd8x50_init_mmc(void)
 201 {
 202         vreg_mmc = vreg_get(NULL, "gp5");
 203
 204         if (IS_ERR(vreg_mmc)) {
 205                 pr_err("vreg get for vreg_mmc failed (%ld)\n",
 206                                 PTR_ERR(vreg_mmc));
 207                 return;
 208         }
 209
 210         msm_add_sdcc(1, &qsd8x50_sdc1_data, 0, 0);
 211 }
 212
 213 static void __init qsd8x50_map_io(void)
 214 {
 215         msm_map_qsd8x50_io();
 216 }
 217
 218 static void __init qsd8x50_init_irq(void)
 219 {
 220         msm_init_irq();
 221         msm_init_sirc();
 222 }
 223
 224 static void __init qsd8x50_init(void)
 225 {
 226         msm_device_otg.dev.platform_data = &msm_otg_pdata;
 227         msm_device_hsusb.dev.parent = &msm_device_otg.dev;
 228         msm_device_hsusb_host.dev.parent = &msm_device_otg.dev;
 229         platform_add_devices(devices, ARRAY_SIZE(devices));
 230         qsd8x50_init_mmc();
 231 }
 232
 233 static void __init qsd8x50_init_late(void)
 234 {
 235         smd_debugfs_init();
 236 }
 237
 238 MACHINE_START(QSD8X50_SURF, "QCT QSD8X50 SURF")
 239         .atag_offset = 0x100,
 240         .map_io = qsd8x50_map_io,
 241         .init_irq = qsd8x50_init_irq,
 242         .init_machine = qsd8x50_init,
 243         .init_late = qsd8x50_init_late,
 244         .init_time      = qsd8x50_timer_init,
 245 MACHINE_END
 246
 247 MACHINE_START(QSD8X50A_ST1_5, "QCT QSD8X50A ST1.5")
 248         .atag_offset = 0x100,
 249         .map_io = qsd8x50_map_io,
 250         .init_irq = qsd8x50_init_irq,
 251         .init_machine = qsd8x50_init,
 252         .init_late = qsd8x50_init_late,
 253         .init_time      = qsd8x50_timer_init,
 254 MACHINE_END