arch/arm/mach-netx/nxeb500hmi.c

   1 /*
   2  * arch/arm/mach-netx/nxeb500hmi.c
   3  *
   4  * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   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  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <linux/dma-mapping.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/mtd/plat-ram.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/amba/bus.h>
  26 #include <linux/amba/clcd.h>
  27
  28 #include <mach/hardware.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <mach/netx-regs.h>
  32 #include <linux/platform_data/eth-netx.h>
  33
  34 #include "generic.h"
  35 #include "fb.h"
  36
  37 static struct clcd_panel qvga = {
  38         .mode           = {
  39                 .name           = "QVGA",
  40                 .refresh        = 60,
  41                 .xres           = 240,
  42                 .yres           = 320,
  43                 .pixclock       = 187617,
  44                 .left_margin    = 6,
  45                 .right_margin   = 26,
  46                 .upper_margin   = 0,
  47                 .lower_margin   = 6,
  48                 .hsync_len      = 6,
  49                 .vsync_len      = 1,
  50                 .sync           = 0,
  51                 .vmode          = FB_VMODE_NONINTERLACED,
  52         },
  53         .width          = -1,
  54         .height         = -1,
  55         .tim2           =  16,
  56         .cntl           = CNTL_LCDTFT | CNTL_BGR,
  57         .bpp            = 16,
  58         .grayscale      = 0,
  59 };
  60
  61 static inline int nxeb500hmi_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
  62 {
  63         var->green.length = 5;
  64         var->green.msb_right = 0;
  65
  66         return clcdfb_check(fb, var);
  67 }
  68
  69 static int nxeb500hmi_clcd_setup(struct clcd_fb *fb)
  70 {
  71         unsigned int val;
  72
  73         fb->fb.var.green.length = 5;
  74         fb->fb.var.green.msb_right = 0;
  75
  76         /* enable asic control */
  77         val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
  78         writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);
  79
  80         writel(3, NETX_SYSTEM_IOC_CR);
  81
  82         /* GPIO 14 is used for display enable on newer boards */
  83         writel(9, NETX_GPIO_CFG(14));
  84
  85         val = readl(NETX_PIO_OUTPIO);
  86         writel(val | 1, NETX_PIO_OUTPIO);
  87
  88         val = readl(NETX_PIO_OEPIO);
  89         writel(val | 1, NETX_PIO_OEPIO);
  90         return netx_clcd_setup(fb);
  91 }
  92
  93 static struct clcd_board clcd_data = {
  94         .name           = "netX",
  95         .check          = nxeb500hmi_check,
  96         .decode         = clcdfb_decode,
  97         .enable         = netx_clcd_enable,
  98         .setup          = nxeb500hmi_clcd_setup,
  99         .mmap           = netx_clcd_mmap,
 100         .remove         = netx_clcd_remove,
 101 };
 102
 103 static struct netxeth_platform_data eth0_platform_data = {
 104         .xcno = 0,
 105 };
 106
 107 static struct platform_device netx_eth0_device = {
 108         .name           = "netx-eth",
 109         .id             = 0,
 110         .num_resources  = 0,
 111         .resource       = NULL,
 112         .dev = {
 113                 .platform_data = &eth0_platform_data,
 114         }
 115 };
 116
 117 static struct netxeth_platform_data eth1_platform_data = {
 118         .xcno = 1,
 119 };
 120
 121 static struct platform_device netx_eth1_device = {
 122         .name           = "netx-eth",
 123         .id             = 1,
 124         .num_resources  = 0,
 125         .resource       = NULL,
 126         .dev = {
 127                 .platform_data = &eth1_platform_data,
 128         }
 129 };
 130
 131 static struct resource netx_cf_resources[] = {
 132         [0] = {
 133                 .start  = 0x20000000,
 134                 .end    = 0x25ffffff,
 135                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
 136         },
 137 };
 138
 139 static struct platform_device netx_cf_device = {
 140         .name           = "netx-cf",
 141         .id             = 0,
 142         .resource       = netx_cf_resources,
 143         .num_resources  = ARRAY_SIZE(netx_cf_resources),
 144 };
 145
 146 static struct resource netx_uart0_resources[] = {
 147         [0] = {
 148                 .start  = 0x00100A00,
 149                 .end    = 0x00100A3F,
 150                 .flags  = IORESOURCE_MEM,
 151         },
 152         [1] = {
 153                 .start  = (NETX_IRQ_UART0),
 154                 .end    = (NETX_IRQ_UART0),
 155                 .flags  = IORESOURCE_IRQ,
 156         },
 157 };
 158
 159 static struct platform_device netx_uart0_device = {
 160         .name           = "netx-uart",
 161         .id             = 0,
 162         .num_resources  = ARRAY_SIZE(netx_uart0_resources),
 163         .resource       = netx_uart0_resources,
 164 };
 165
 166 static struct platform_device *devices[] __initdata = {
 167         &netx_eth0_device,
 168         &netx_eth1_device,
 169         &netx_cf_device,
 170         &netx_uart0_device,
 171 };
 172
 173 static void __init nxeb500hmi_init(void)
 174 {
 175         netx_fb_init(&clcd_data, &qvga);
 176         platform_add_devices(devices, ARRAY_SIZE(devices));
 177 }
 178
 179 MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
 180         .atag_offset    = 0x100,
 181         .map_io         = netx_map_io,
 182         .init_irq       = netx_init_irq,
 183         .init_time      = netx_timer_init,
 184         .init_machine   = nxeb500hmi_init,
 185         .restart        = netx_restart,
 186 MACHINE_END