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 <asm/hardware/vic.h>
  32 #include <mach/netx-regs.h>
  33 #include <mach/eth.h>
  34
  35 #include "generic.h"
  36 #include "fb.h"
  37
  38 static struct clcd_panel qvga = {
  39         .mode           = {
  40                 .name           = "QVGA",
  41                 .refresh        = 60,
  42                 .xres           = 240,
  43                 .yres           = 320,
  44                 .pixclock       = 187617,
  45                 .left_margin    = 6,
  46                 .right_margin   = 26,
  47                 .upper_margin   = 0,
  48                 .lower_margin   = 6,
  49                 .hsync_len      = 6,
  50                 .vsync_len      = 1,
  51                 .sync           = 0,
  52                 .vmode          = FB_VMODE_NONINTERLACED,
  53         },
  54         .width          = -1,
  55         .height         = -1,
  56         .tim2           =  16,
  57         .cntl           = CNTL_LCDTFT | CNTL_BGR,
  58         .bpp            = 16,
  59         .grayscale      = 0,
  60 };
  61
  62 static inline int nxeb500hmi_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
  63 {
  64         var->green.length = 5;
  65         var->green.msb_right = 0;
  66
  67         return clcdfb_check(fb, var);
  68 }
  69
  70 static int nxeb500hmi_clcd_setup(struct clcd_fb *fb)
  71 {
  72         unsigned int val;
  73
  74         fb->fb.var.green.length = 5;
  75         fb->fb.var.green.msb_right = 0;
  76
  77         /* enable asic control */
  78         val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
  79         writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);
  80
  81         writel(3, NETX_SYSTEM_IOC_CR);
  82
  83         /* GPIO 14 is used for display enable on newer boards */
  84         writel(9, NETX_GPIO_CFG(14));
  85
  86         val = readl(NETX_PIO_OUTPIO);
  87         writel(val | 1, NETX_PIO_OUTPIO);
  88
  89         val = readl(NETX_PIO_OEPIO);
  90         writel(val | 1, NETX_PIO_OEPIO);
  91         return netx_clcd_setup(fb);
  92 }
  93
  94 static struct clcd_board clcd_data = {
  95         .name           = "netX",
  96         .check          = nxeb500hmi_check,
  97         .decode         = clcdfb_decode,
  98         .enable         = netx_clcd_enable,
  99         .setup          = nxeb500hmi_clcd_setup,
 100         .mmap           = netx_clcd_mmap,
 101         .remove         = netx_clcd_remove,
 102 };
 103
 104 static struct netxeth_platform_data eth0_platform_data = {
 105         .xcno = 0,
 106 };
 107
 108 static struct platform_device netx_eth0_device = {
 109         .name           = "netx-eth",
 110         .id             = 0,
 111         .num_resources  = 0,
 112         .resource       = NULL,
 113         .dev = {
 114                 .platform_data = &eth0_platform_data,
 115         }
 116 };
 117
 118 static struct netxeth_platform_data eth1_platform_data = {
 119         .xcno = 1,
 120 };
 121
 122 static struct platform_device netx_eth1_device = {
 123         .name           = "netx-eth",
 124         .id             = 1,
 125         .num_resources  = 0,
 126         .resource       = NULL,
 127         .dev = {
 128                 .platform_data = &eth1_platform_data,
 129         }
 130 };
 131
 132 static struct resource netx_cf_resources[] = {
 133         [0] = {
 134                 .start  = 0x20000000,
 135                 .end    = 0x25ffffff,
 136                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
 137         },
 138 };
 139
 140 static struct platform_device netx_cf_device = {
 141         .name           = "netx-cf",
 142         .id             = 0,
 143         .resource       = netx_cf_resources,
 144         .num_resources  = ARRAY_SIZE(netx_cf_resources),
 145 };
 146
 147 static struct resource netx_uart0_resources[] = {
 148         [0] = {
 149                 .start  = 0x00100A00,
 150                 .end    = 0x00100A3F,
 151                 .flags  = IORESOURCE_MEM,
 152         },
 153         [1] = {
 154                 .start  = (NETX_IRQ_UART0),
 155                 .end    = (NETX_IRQ_UART0),
 156                 .flags  = IORESOURCE_IRQ,
 157         },
 158 };
 159
 160 static struct platform_device netx_uart0_device = {
 161         .name           = "netx-uart",
 162         .id             = 0,
 163         .num_resources  = ARRAY_SIZE(netx_uart0_resources),
 164         .resource       = netx_uart0_resources,
 165 };
 166
 167 static struct platform_device *devices[] __initdata = {
 168         &netx_eth0_device,
 169         &netx_eth1_device,
 170         &netx_cf_device,
 171         &netx_uart0_device,
 172 };
 173
 174 static void __init nxeb500hmi_init(void)
 175 {
 176         netx_fb_init(&clcd_data, &qvga);
 177         platform_add_devices(devices, ARRAY_SIZE(devices));
 178 }
 179
 180 MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
 181         .atag_offset    = 0x100,
 182         .map_io         = netx_map_io,
 183         .init_irq       = netx_init_irq,
 184         .handle_irq     = vic_handle_irq,
 185         .timer          = &netx_timer,
 186         .init_machine   = nxeb500hmi_init,
 187         .restart        = netx_restart,
 188 MACHINE_END