arch/ppc/syslib/virtex_devices.c

   1 /*
   2  * Virtex hard ppc405 core common device listing
   3  *
   4  * Copyright 2005-2007 Secret Lab Technologies Ltd.
   5  * Copyright 2005 Freescale Semiconductor Inc.
   6  * Copyright 2002-2004 MontaVista Software, Inc.
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  */
  13
  14 #include <linux/init.h>
  15 #include <linux/module.h>
  16 #include <linux/device.h>
  17 #include <linux/serial_8250.h>
  18 #include <syslib/virtex_devices.h>
  19 #include <platforms/4xx/xparameters/xparameters.h>
  20 #include <asm/io.h>
  21
  22 /*
  23  * UARTLITE: shortcut macro for single instance
  24  */
  25 #define XPAR_UARTLITE(num) { \
  26         .name = "uartlite", \
  27         .id = num, \
  28         .num_resources = 2, \
  29         .resource = (struct resource[]) { \
  30                 { \
  31                         .start = XPAR_UARTLITE_##num##_BASEADDR + 3, \
  32                         .end = XPAR_UARTLITE_##num##_HIGHADDR, \
  33                         .flags = IORESOURCE_MEM, \
  34                 }, \
  35                 { \
  36                         .start = XPAR_INTC_0_UARTLITE_##num##_VEC_ID, \
  37                         .flags = IORESOURCE_IRQ, \
  38                 }, \
  39         }, \
  40 }
  41
  42 /*
  43  * Full UART: shortcut macro for single instance + platform data structure
  44  */
  45 #define XPAR_UART(num) { \
  46         .mapbase = XPAR_UARTNS550_##num##_BASEADDR + 3, \
  47         .irq = XPAR_INTC_0_UARTNS550_##num##_VEC_ID, \
  48         .iotype = UPIO_MEM, \
  49         .uartclk = XPAR_UARTNS550_##num##_CLOCK_FREQ_HZ, \
  50         .flags = UPF_BOOT_AUTOCONF, \
  51         .regshift = 2, \
  52 }
  53
  54 /*
  55  * SystemACE: shortcut macro for single instance
  56  */
  57 #define XPAR_SYSACE(num) { \
  58         .name           = "xsysace", \
  59         .id             = XPAR_SYSACE_##num##_DEVICE_ID, \
  60         .num_resources  = 2, \
  61         .resource = (struct resource[]) { \
  62                 { \
  63                         .start  = XPAR_SYSACE_##num##_BASEADDR, \
  64                         .end    = XPAR_SYSACE_##num##_HIGHADDR, \
  65                         .flags  = IORESOURCE_MEM, \
  66                 }, \
  67                 { \
  68                         .start  = XPAR_INTC_0_SYSACE_##num##_VEC_ID, \
  69                         .flags  = IORESOURCE_IRQ, \
  70                 }, \
  71         }, \
  72 }
  73
  74 /*
  75  * ML300/ML403 Video Device: shortcut macro for single instance
  76  */
  77 #define XPAR_TFT(num) { \
  78         .name = "xilinxfb", \
  79         .id = num, \
  80         .num_resources = 1, \
  81         .resource = (struct resource[]) { \
  82                 { \
  83                         .start = XPAR_TFT_##num##_BASEADDR, \
  84                         .end = XPAR_TFT_##num##_BASEADDR+7, \
  85                         .flags = IORESOURCE_IO, \
  86                 }, \
  87         }, \
  88 }
  89
  90 /* UART 8250 driver platform data table */
  91 struct plat_serial8250_port virtex_serial_platform_data[] = {
  92 #if defined(XPAR_UARTNS550_0_BASEADDR)
  93         XPAR_UART(0),
  94 #endif
  95 #if defined(XPAR_UARTNS550_1_BASEADDR)
  96         XPAR_UART(1),
  97 #endif
  98 #if defined(XPAR_UARTNS550_2_BASEADDR)
  99         XPAR_UART(2),
 100 #endif
 101 #if defined(XPAR_UARTNS550_3_BASEADDR)
 102         XPAR_UART(3),
 103 #endif
 104 #if defined(XPAR_UARTNS550_4_BASEADDR)
 105         XPAR_UART(4),
 106 #endif
 107 #if defined(XPAR_UARTNS550_5_BASEADDR)
 108         XPAR_UART(5),
 109 #endif
 110 #if defined(XPAR_UARTNS550_6_BASEADDR)
 111         XPAR_UART(6),
 112 #endif
 113 #if defined(XPAR_UARTNS550_7_BASEADDR)
 114         XPAR_UART(7),
 115 #endif
 116         { }, /* terminated by empty record */
 117 };
 118
 119
 120 struct platform_device virtex_platform_devices[] = {
 121         /* UARTLITE instances */
 122 #if defined(XPAR_UARTLITE_0_BASEADDR)
 123         XPAR_UARTLITE(0),
 124 #endif
 125 #if defined(XPAR_UARTLITE_1_BASEADDR)
 126         XPAR_UARTLITE(1),
 127 #endif
 128 #if defined(XPAR_UARTLITE_2_BASEADDR)
 129         XPAR_UARTLITE(2),
 130 #endif
 131 #if defined(XPAR_UARTLITE_3_BASEADDR)
 132         XPAR_UARTLITE(3),
 133 #endif
 134 #if defined(XPAR_UARTLITE_4_BASEADDR)
 135         XPAR_UARTLITE(4),
 136 #endif
 137 #if defined(XPAR_UARTLITE_5_BASEADDR)
 138         XPAR_UARTLITE(5),
 139 #endif
 140 #if defined(XPAR_UARTLITE_6_BASEADDR)
 141         XPAR_UARTLITE(6),
 142 #endif
 143 #if defined(XPAR_UARTLITE_7_BASEADDR)
 144         XPAR_UARTLITE(7),
 145 #endif
 146
 147         /* Full UART instances */
 148 #if defined(XPAR_UARTNS550_0_BASEADDR)
 149         {
 150                 .name           = "serial8250",
 151                 .id             = 0,
 152                 .dev.platform_data = virtex_serial_platform_data,
 153         },
 154 #endif
 155
 156         /* SystemACE instances */
 157 #if defined(XPAR_SYSACE_0_BASEADDR)
 158         XPAR_SYSACE(0),
 159 #endif
 160 #if defined(XPAR_SYSACE_1_BASEADDR)
 161         XPAR_SYSACE(1),
 162 #endif
 163
 164 #if defined(XPAR_TFT_0_BASEADDR)
 165         XPAR_TFT(0),
 166 #endif
 167 #if defined(XPAR_TFT_1_BASEADDR)
 168         XPAR_TFT(1),
 169 #endif
 170 #if defined(XPAR_TFT_2_BASEADDR)
 171         XPAR_TFT(2),
 172 #endif
 173 #if defined(XPAR_TFT_3_BASEADDR)
 174         XPAR_TFT(3),
 175 #endif
 176 };
 177
 178 /* Early serial support functions */
 179 static void __init
 180 virtex_early_serial_init(int num, struct plat_serial8250_port *pdata)
 181 {
 182 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 183         struct uart_port serial_req;
 184
 185         memset(&serial_req, 0, sizeof(serial_req));
 186         serial_req.mapbase      = pdata->mapbase;
 187         serial_req.membase      = pdata->membase;
 188         serial_req.irq          = pdata->irq;
 189         serial_req.uartclk      = pdata->uartclk;
 190         serial_req.regshift     = pdata->regshift;
 191         serial_req.iotype       = pdata->iotype;
 192         serial_req.flags        = pdata->flags;
 193         gen550_init(num, &serial_req);
 194 #endif
 195 }
 196
 197 void __init
 198 virtex_early_serial_map(void)
 199 {
 200 #ifdef CONFIG_SERIAL_8250
 201         struct plat_serial8250_port *pdata;
 202         int i = 0;
 203
 204         pdata = virtex_serial_platform_data;
 205         while(pdata && pdata->flags) {
 206                 pdata->membase = ioremap(pdata->mapbase, 0x100);
 207                 virtex_early_serial_init(i, pdata);
 208                 pdata++;
 209                 i++;
 210         }
 211 #endif /* CONFIG_SERIAL_8250 */
 212 }
 213
 214 /*
 215  * default fixup routine; do nothing and return success.
 216  *
 217  * Reimplement this routine in your custom board support file to
 218  * override the default behaviour
 219  */
 220 int __attribute__ ((weak))
 221 virtex_device_fixup(struct platform_device *dev)
 222 {
 223         return 0;
 224 }
 225
 226 static int __init virtex_init(void)
 227 {
 228         struct platform_device *index = virtex_platform_devices;
 229         unsigned int ret = 0;
 230         int i;
 231
 232         for (i = 0; i < ARRAY_SIZE(virtex_platform_devices); i++, index++) {
 233                 if (virtex_device_fixup(index) != 0)
 234                         continue;
 235
 236                 if (platform_device_register(index)) {
 237                         ret = 1;
 238                         printk(KERN_ERR "cannot register dev %s:%d\n",
 239                                index->name, index->id);
 240                 }
 241         }
 242         return ret;
 243 }
 244
 245 subsys_initcall(virtex_init);