arch/arm/mach-omap2/board-3430sdp-usb.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-3430sdp-usb.c
   3  *
   4  * This file will contain the board specific details for the
   5  * MENTOR USB OTG and Synopsys EHCI host controllers on OMAP3430
   6  *
   7  * Copyright (C) 2007 Texas Instruments
   8  * Author: Vikram Pandita
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/types.h>
  16 #include <linux/errno.h>
  17 #include <linux/delay.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/clk.h>
  20 #include <asm/io.h>
  21 #include <asm/arch/mux.h>
  22 #include <linux/usb/musb.h>
  23
  24 #include <asm/arch/hardware.h>
  25 #include <asm/arch/pm.h>
  26 #include <asm/arch/usb.h>
  27
  28 #ifdef CONFIG_USB_MUSB_SOC
  29 static struct resource musb_resources[] = {
  30         [0] = {
  31                 .start  = OMAP34XX_HSUSB_OTG_BASE,
  32                 .end    = OMAP34XX_HSUSB_OTG_BASE + SZ_8K - 1,
  33                 .flags  = IORESOURCE_MEM,
  34         },
  35         [1] = { /* general IRQ */
  36                 .start  = INT_243X_HS_USB_MC,
  37                 .flags  = IORESOURCE_IRQ,
  38         },
  39         [2] = { /* DMA IRQ */
  40                 .start  = INT_243X_HS_USB_DMA,
  41                 .flags  = IORESOURCE_IRQ,
  42         },
  43 };
  44
  45 static int hsotgusb_ick_on;
  46
  47 static int musb_set_clock(struct clk *clk, int state)
  48 {
  49         if (state) {
  50                 if (hsotgusb_ick_on > 0)
  51                         return -ENODEV;
  52
  53                 omap2_block_sleep();
  54                 clk_enable(clk);
  55                 hsotgusb_ick_on = 1;
  56         } else {
  57                 if (hsotgusb_ick_on == 0)
  58                         return -ENODEV;
  59
  60                 clk_disable(clk);
  61                 hsotgusb_ick_on = 0;
  62                 omap2_allow_sleep();
  63         }
  64
  65         return 0;
  66 }
  67
  68 static struct musb_hdrc_platform_data musb_plat = {
  69 #ifdef CONFIG_USB_MUSB_OTG
  70         .mode           = MUSB_OTG,
  71 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
  72         .mode           = MUSB_HOST,
  73 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
  74         .mode           = MUSB_PERIPHERAL,
  75 #endif
  76         .multipoint     = 1,
  77         .clock          = "hsotgusb_ick",
  78         .set_clock      = musb_set_clock,
  79 };
  80
  81 static u64 musb_dmamask = ~(u32)0;
  82
  83 static struct platform_device musb_device = {
  84         .name           = "musb_hdrc",
  85         .id             = 0,
  86         .dev = {
  87                 .dma_mask               = &musb_dmamask,
  88                 .coherent_dma_mask      = 0xffffffff,
  89                 .platform_data          = &musb_plat,
  90         },
  91         .num_resources  = ARRAY_SIZE(musb_resources),
  92         .resource       = musb_resources,
  93 };
  94 #endif
  95
  96
  97 /* EHCI platform specific data */
  98
  99 #if     defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 100 static struct resource ehci_resources[] = {
 101         [0] = {
 102                 .start   = OMAP34XX_HSUSB_HOST_BASE + 0x800,
 103                 .end     = OMAP34XX_HSUSB_HOST_BASE + 0x800 + SZ_1K - 1,
 104                 .flags   = IORESOURCE_MEM,
 105         },
 106         [1] = {         /* general IRQ */
 107                 .start   = INT_34XX_EHCI_IRQ,
 108                 .flags   = IORESOURCE_IRQ,
 109         }
 110 };
 111
 112 static u64 ehci_dmamask = ~(u32)0;
 113 static struct platform_device ehci_device = {
 114         .name           = "ehci-omap",
 115         .id             = 0,
 116         .dev = {
 117                 .dma_mask               = &ehci_dmamask,
 118                 .coherent_dma_mask      = 0xffffffff,
 119                 .platform_data          = 0x0,
 120         },
 121         .num_resources  = ARRAY_SIZE(ehci_resources),
 122         .resource       = ehci_resources,
 123 };
 124
 125
 126 /* MUX settings for EHCI pins */
 127 /*
 128  * setup_ehci_io_mux - initialize IO pad mux for USBHOST
 129  */
 130 static void setup_ehci_io_mux(void)
 131 {
 132 #ifdef CONFIG_OMAP_EHCI_PHY_MODE
 133         /* PHY mode of operation for board: 750-2083-001
 134          * ISP1504 connected to Port1 and Port2
 135          * Do Func Mux setting for 12-pin ULPI PHY mode
 136          */
 137
 138         /* Port1 */
 139         omap_cfg_reg(Y9_3430_USB1HS_PHY_STP);
 140         omap_cfg_reg(Y8_3430_USB1HS_PHY_CLK);
 141         omap_cfg_reg(AA14_3430_USB1HS_PHY_DIR);
 142         omap_cfg_reg(AA11_3430_USB1HS_PHY_NXT);
 143         omap_cfg_reg(W13_3430_USB1HS_PHY_DATA0);
 144         omap_cfg_reg(W12_3430_USB1HS_PHY_DATA1);
 145         omap_cfg_reg(W11_3430_USB1HS_PHY_DATA2);
 146         omap_cfg_reg(Y11_3430_USB1HS_PHY_DATA3);
 147         omap_cfg_reg(W9_3430_USB1HS_PHY_DATA4);
 148         omap_cfg_reg(Y12_3430_USB1HS_PHY_DATA5);
 149         omap_cfg_reg(W8_3430_USB1HS_PHY_DATA6);
 150         omap_cfg_reg(Y13_3430_USB1HS_PHY_DATA7);
 151
 152         /* Port2 */
 153         omap_cfg_reg(AA10_3430_USB2HS_PHY_STP);
 154         omap_cfg_reg(AA8_3430_USB2HS_PHY_CLK);
 155         omap_cfg_reg(AA9_3430_USB2HS_PHY_DIR);
 156         omap_cfg_reg(AB11_3430_USB2HS_PHY_NXT);
 157         omap_cfg_reg(AB10_3430_USB2HS_PHY_DATA0);
 158         omap_cfg_reg(AB9_3430_USB2HS_PHY_DATA1);
 159         omap_cfg_reg(W3_3430_USB2HS_PHY_DATA2);
 160         omap_cfg_reg(T4_3430_USB2HS_PHY_DATA3);
 161         omap_cfg_reg(T3_3430_USB2HS_PHY_DATA4);
 162         omap_cfg_reg(R3_3430_USB2HS_PHY_DATA5);
 163         omap_cfg_reg(R4_3430_USB2HS_PHY_DATA6);
 164         omap_cfg_reg(T2_3430_USB2HS_PHY_DATA7);
 165
 166 #else
 167         /* Set Func mux for :
 168          * TLL mode of operation
 169          * 12-pin ULPI SDR TLL mode for Port1/2/3
 170          */
 171
 172         /* Port1 */
 173         omap_cfg_reg(Y9_3430_USB1HS_TLL_STP);
 174         omap_cfg_reg(Y8_3430_USB1HS_TLL_CLK);
 175         omap_cfg_reg(AA14_3430_USB1HS_TLL_DIR);
 176         omap_cfg_reg(AA11_3430_USB1HS_TLL_NXT);
 177         omap_cfg_reg(W13_3430_USB1HS_TLL_DATA0);
 178         omap_cfg_reg(W12_3430_USB1HS_TLL_DATA1);
 179         omap_cfg_reg(W11_3430_USB1HS_TLL_DATA2);
 180         omap_cfg_reg(Y11_3430_USB1HS_TLL_DATA3);
 181         omap_cfg_reg(W9_3430_USB1HS_TLL_DATA4);
 182         omap_cfg_reg(Y12_3430_USB1HS_TLL_DATA5);
 183         omap_cfg_reg(W8_3430_USB1HS_TLL_DATA6);
 184         omap_cfg_reg(Y13_3430_USB1HS_TLL_DATA7);
 185
 186         /* Port2 */
 187         omap_cfg_reg(AA10_3430_USB2HS_TLL_STP);
 188         omap_cfg_reg(AA8_3430_USB2HS_TLL_CLK);
 189         omap_cfg_reg(AA9_3430_USB2HS_TLL_DIR);
 190         omap_cfg_reg(AB11_3430_USB2HS_TLL_NXT);
 191         omap_cfg_reg(AB10_3430_USB2HS_TLL_DATA0);
 192         omap_cfg_reg(AB9_3430_USB2HS_TLL_DATA1);
 193         omap_cfg_reg(W3_3430_USB2HS_TLL_DATA2);
 194         omap_cfg_reg(T4_3430_USB2HS_TLL_DATA3);
 195         omap_cfg_reg(T3_3430_USB2HS_TLL_DATA4);
 196         omap_cfg_reg(R3_3430_USB2HS_TLL_DATA5);
 197         omap_cfg_reg(R4_3430_USB2HS_TLL_DATA6);
 198         omap_cfg_reg(T2_3430_USB2HS_TLL_DATA7);
 199
 200         /* Port3 */
 201         omap_cfg_reg(AB3_3430_USB3HS_TLL_STP);
 202         omap_cfg_reg(AA6_3430_USB3HS_TLL_CLK);
 203         omap_cfg_reg(AA3_3430_USB3HS_TLL_DIR);
 204         omap_cfg_reg(Y3_3430_USB3HS_TLL_NXT);
 205         omap_cfg_reg(AA5_3430_USB3HS_TLL_DATA0);
 206         omap_cfg_reg(Y4_3430_USB3HS_TLL_DATA1);
 207         omap_cfg_reg(Y5_3430_USB3HS_TLL_DATA2);
 208         omap_cfg_reg(W5_3430_USB3HS_TLL_DATA3);
 209         omap_cfg_reg(AB12_3430_USB3HS_TLL_DATA4);
 210         omap_cfg_reg(AB13_3430_USB3HS_TLL_DATA5);
 211         omap_cfg_reg(AA13_3430_USB3HS_TLL_DATA6);
 212         omap_cfg_reg(AA12_3430_USB3HS_TLL_DATA7);
 213 #endif /* CONFIG_OMAP_EHCI_PHY_MODE */
 214
 215         return;
 216 }
 217
 218 #endif /* EHCI specific data */
 219
 220 void __init sdp3430_usb_init(void)
 221 {
 222 #ifdef CONFIG_USB_MUSB_SOC
 223         if (platform_device_register(&musb_device) < 0) {
 224                 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
 225                 return;
 226         }
 227 #endif
 228
 229 #if     defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 230
 231         /* Setup Pin IO MUX for EHCI */
 232         setup_ehci_io_mux();
 233
 234         if (platform_device_register(&ehci_device) < 0) {
 235                 printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
 236                 return;
 237         }
 238 #endif
 239
 240 }
 241