arch/arm/mach-netx/nxdb500.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-netx/nxdb500.c
   4  *
   5  * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
   6  */
   7
   8 #include <linux/dma-mapping.h>
   9 #include <linux/init.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/mtd/plat-ram.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/amba/bus.h>
  14 #include <linux/amba/clcd.h>
  15
  16 #include <mach/hardware.h>
  17 #include <asm/mach-types.h>
  18 #include <asm/mach/arch.h>
  19 #include <mach/netx-regs.h>
  20 #include <linux/platform_data/eth-netx.h>
  21
  22 #include "generic.h"
  23 #include "fb.h"
  24
  25 static struct clcd_panel qvga = {
  26         .mode           = {
  27                 .name           = "QVGA",
  28                 .refresh        = 60,
  29                 .xres           = 240,
  30                 .yres           = 320,
  31                 .pixclock       = 187617,
  32                 .left_margin    = 6,
  33                 .right_margin   = 26,
  34                 .upper_margin   = 0,
  35                 .lower_margin   = 6,
  36                 .hsync_len      = 6,
  37                 .vsync_len      = 1,
  38                 .sync           = 0,
  39                 .vmode          = FB_VMODE_NONINTERLACED,
  40         },
  41         .width          = -1,
  42         .height         = -1,
  43         .tim2           =  16,
  44         .cntl           = CNTL_LCDTFT | CNTL_BGR,
  45         .bpp            = 16,
  46         .grayscale      = 0,
  47 };
  48
  49 static inline int nxdb500_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
  50 {
  51         var->green.length = 5;
  52         var->green.msb_right = 0;
  53
  54         return clcdfb_check(fb, var);
  55 }
  56
  57 static int nxdb500_clcd_setup(struct clcd_fb *fb)
  58 {
  59         unsigned int val;
  60
  61         fb->fb.var.green.length = 5;
  62         fb->fb.var.green.msb_right = 0;
  63
  64         /* enable asic control */
  65         val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
  66         writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);
  67
  68         writel(3, NETX_SYSTEM_IOC_CR);
  69
  70         val = readl(NETX_PIO_OUTPIO);
  71         writel(val | 1, NETX_PIO_OUTPIO);
  72
  73         val = readl(NETX_PIO_OEPIO);
  74         writel(val | 1, NETX_PIO_OEPIO);
  75         return netx_clcd_setup(fb);
  76 }
  77
  78 static struct clcd_board clcd_data = {
  79         .name           = "netX",
  80         .check          = nxdb500_check,
  81         .decode         = clcdfb_decode,
  82         .enable         = netx_clcd_enable,
  83         .setup          = nxdb500_clcd_setup,
  84         .mmap           = netx_clcd_mmap,
  85         .remove         = netx_clcd_remove,
  86 };
  87
  88 static struct netxeth_platform_data eth0_platform_data = {
  89         .xcno = 0,
  90 };
  91
  92 static struct platform_device netx_eth0_device = {
  93         .name           = "netx-eth",
  94         .id             = 0,
  95         .num_resources  = 0,
  96         .resource       = NULL,
  97         .dev = {
  98                 .platform_data = &eth0_platform_data,
  99         }
 100 };
 101
 102 static struct netxeth_platform_data eth1_platform_data = {
 103         .xcno = 1,
 104 };
 105
 106 static struct platform_device netx_eth1_device = {
 107         .name           = "netx-eth",
 108         .id             = 1,
 109         .num_resources  = 0,
 110         .resource       = NULL,
 111         .dev = {
 112                 .platform_data = &eth1_platform_data,
 113         }
 114 };
 115
 116 static struct resource netx_uart0_resources[] = {
 117         [0] = {
 118                 .start  = 0x00100A00,
 119                 .end    = 0x00100A3F,
 120                 .flags  = IORESOURCE_MEM,
 121         },
 122         [1] = {
 123                 .start  = (NETX_IRQ_UART0),
 124                 .end    = (NETX_IRQ_UART0),
 125                 .flags  = IORESOURCE_IRQ,
 126         },
 127 };
 128
 129 static struct platform_device netx_uart0_device = {
 130         .name           = "netx-uart",
 131         .id             = 0,
 132         .num_resources  = ARRAY_SIZE(netx_uart0_resources),
 133         .resource       = netx_uart0_resources,
 134 };
 135
 136 static struct resource netx_uart1_resources[] = {
 137         [0] = {
 138                 .start  = 0x00100A40,
 139                 .end    = 0x00100A7F,
 140                 .flags  = IORESOURCE_MEM,
 141         },
 142         [1] = {
 143                 .start  = (NETX_IRQ_UART1),
 144                 .end    = (NETX_IRQ_UART1),
 145                 .flags  = IORESOURCE_IRQ,
 146         },
 147 };
 148
 149 static struct platform_device netx_uart1_device = {
 150         .name           = "netx-uart",
 151         .id             = 1,
 152         .num_resources  = ARRAY_SIZE(netx_uart1_resources),
 153         .resource       = netx_uart1_resources,
 154 };
 155
 156 static struct resource netx_uart2_resources[] = {
 157         [0] = {
 158                 .start  = 0x00100A80,
 159                 .end    = 0x00100ABF,
 160                 .flags  = IORESOURCE_MEM,
 161         },
 162         [1] = {
 163                 .start  = (NETX_IRQ_UART2),
 164                 .end    = (NETX_IRQ_UART2),
 165                 .flags  = IORESOURCE_IRQ,
 166         },
 167 };
 168
 169 static struct platform_device netx_uart2_device = {
 170         .name           = "netx-uart",
 171         .id             = 2,
 172         .num_resources  = ARRAY_SIZE(netx_uart2_resources),
 173         .resource       = netx_uart2_resources,
 174 };
 175
 176 static struct platform_device *devices[] __initdata = {
 177         &netx_eth0_device,
 178         &netx_eth1_device,
 179         &netx_uart0_device,
 180         &netx_uart1_device,
 181         &netx_uart2_device,
 182 };
 183
 184 static void __init nxdb500_init(void)
 185 {
 186         netx_fb_init(&clcd_data, &qvga);
 187         platform_add_devices(devices, ARRAY_SIZE(devices));
 188 }
 189
 190 MACHINE_START(NXDB500, "Hilscher nxdb500")
 191         .atag_offset    = 0x100,
 192         .map_io         = netx_map_io,
 193         .init_irq       = netx_init_irq,
 194         .init_time      = netx_timer_init,
 195         .init_machine   = nxdb500_init,
 196         .restart        = netx_restart,
 197 MACHINE_END