arch/arm/mach-mmp/pxa910.c

   1 /*
   2  *  linux/arch/arm/mach-mmp/pxa910.c
   3  *
   4  *  Code specific to PXA910
   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 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/module.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/list.h>
  14 #include <linux/io.h>
  15 #include <linux/platform_device.h>
  16
  17 #include <asm/hardware/cache-tauros2.h>
  18 #include <asm/mach/time.h>
  19 #include <mach/addr-map.h>
  20 #include <mach/regs-apbc.h>
  21 #include <mach/cputype.h>
  22 #include <mach/irqs.h>
  23 #include <mach/dma.h>
  24 #include <mach/mfp.h>
  25 #include <mach/devices.h>
  26
  27 #include "common.h"
  28
  29 #define MFPR_VIRT_BASE  (APB_VIRT_BASE + 0x1e000)
  30
  31 static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
  32 {
  33         MFP_ADDR_X(GPIO0, GPIO54, 0xdc),
  34         MFP_ADDR_X(GPIO67, GPIO98, 0x1b8),
  35         MFP_ADDR_X(GPIO100, GPIO109, 0x238),
  36
  37         MFP_ADDR(GPIO123, 0xcc),
  38         MFP_ADDR(GPIO124, 0xd0),
  39
  40         MFP_ADDR(DF_IO0, 0x40),
  41         MFP_ADDR(DF_IO1, 0x3c),
  42         MFP_ADDR(DF_IO2, 0x38),
  43         MFP_ADDR(DF_IO3, 0x34),
  44         MFP_ADDR(DF_IO4, 0x30),
  45         MFP_ADDR(DF_IO5, 0x2c),
  46         MFP_ADDR(DF_IO6, 0x28),
  47         MFP_ADDR(DF_IO7, 0x24),
  48         MFP_ADDR(DF_IO8, 0x20),
  49         MFP_ADDR(DF_IO9, 0x1c),
  50         MFP_ADDR(DF_IO10, 0x18),
  51         MFP_ADDR(DF_IO11, 0x14),
  52         MFP_ADDR(DF_IO12, 0x10),
  53         MFP_ADDR(DF_IO13, 0xc),
  54         MFP_ADDR(DF_IO14, 0x8),
  55         MFP_ADDR(DF_IO15, 0x4),
  56
  57         MFP_ADDR(DF_nCS0_SM_nCS2, 0x44),
  58         MFP_ADDR(DF_nCS1_SM_nCS3, 0x48),
  59         MFP_ADDR(SM_nCS0, 0x4c),
  60         MFP_ADDR(SM_nCS1, 0x50),
  61         MFP_ADDR(DF_WEn, 0x54),
  62         MFP_ADDR(DF_REn, 0x58),
  63         MFP_ADDR(DF_CLE_SM_OEn, 0x5c),
  64         MFP_ADDR(DF_ALE_SM_WEn, 0x60),
  65         MFP_ADDR(SM_SCLK, 0x64),
  66         MFP_ADDR(DF_RDY0, 0x68),
  67         MFP_ADDR(SM_BE0, 0x6c),
  68         MFP_ADDR(SM_BE1, 0x70),
  69         MFP_ADDR(SM_ADV, 0x74),
  70         MFP_ADDR(DF_RDY1, 0x78),
  71         MFP_ADDR(SM_ADVMUX, 0x7c),
  72         MFP_ADDR(SM_RDY, 0x80),
  73
  74         MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84),
  75
  76         MFP_ADDR_END,
  77 };
  78
  79 void __init pxa910_init_irq(void)
  80 {
  81         icu_init_irq();
  82 }
  83
  84 static int __init pxa910_init(void)
  85 {
  86         if (cpu_is_pxa910()) {
  87 #ifdef CONFIG_CACHE_TAUROS2
  88                 tauros2_init(0);
  89 #endif
  90                 mfp_init_base(MFPR_VIRT_BASE);
  91                 mfp_init_addr(pxa910_mfp_addr_map);
  92                 pxa_init_dma(IRQ_PXA910_DMA_INT0, 32);
  93                 pxa910_clk_init();
  94         }
  95
  96         return 0;
  97 }
  98 postcore_initcall(pxa910_init);
  99
 100 /* system timer - clock enabled, 3.25MHz */
 101 #define TIMER_CLK_RST   (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
 102 #define APBC_TIMERS     APBC_REG(0x34)
 103
 104 static void __init pxa910_timer_init(void)
 105 {
 106         /* reset and configure */
 107         __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
 108         __raw_writel(TIMER_CLK_RST, APBC_TIMERS);
 109
 110         timer_init(IRQ_PXA910_AP1_TIMER1);
 111 }
 112
 113 struct sys_timer pxa910_timer = {
 114         .init   = pxa910_timer_init,
 115 };
 116
 117 /* on-chip devices */
 118
 119 /* NOTE: there are totally 3 UARTs on PXA910:
 120  *
 121  *   UART1   - Slow UART (can be used both by AP and CP)
 122  *   UART2/3 - Fast UART
 123  *
 124  * To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
 125  * they are re-ordered as:
 126  *
 127  *   pxa910_device_uart1 - UART2 as FFUART
 128  *   pxa910_device_uart2 - UART3 as BTUART
 129  *
 130  * UART1 is not used by AP for the moment.
 131  */
 132 PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
 133 PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
 134 PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 135 PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
 136 PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
 137 PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
 138 PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
 139 PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
 140 PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
 141
 142 struct resource pxa910_resource_gpio[] = {
 143         {
 144                 .start  = 0xd4019000,
 145                 .end    = 0xd4019fff,
 146                 .flags  = IORESOURCE_MEM,
 147         }, {
 148                 .start  = IRQ_PXA910_AP_GPIO,
 149                 .end    = IRQ_PXA910_AP_GPIO,
 150                 .name   = "gpio_mux",
 151                 .flags  = IORESOURCE_IRQ,
 152         },
 153 };
 154
 155 struct platform_device pxa910_device_gpio = {
 156         .name           = "pxa-gpio",
 157         .id             = -1,
 158         .num_resources  = ARRAY_SIZE(pxa910_resource_gpio),
 159         .resource       = pxa910_resource_gpio,
 160 };
 161
 162 static struct resource pxa910_resource_rtc[] = {
 163         {
 164                 .start  = 0xd4010000,
 165                 .end    = 0xd401003f,
 166                 .flags  = IORESOURCE_MEM,
 167         }, {
 168                 .start  = IRQ_PXA910_RTC_INT,
 169                 .end    = IRQ_PXA910_RTC_INT,
 170                 .name   = "rtc 1Hz",
 171                 .flags  = IORESOURCE_IRQ,
 172         }, {
 173                 .start  = IRQ_PXA910_RTC_ALARM,
 174                 .end    = IRQ_PXA910_RTC_ALARM,
 175                 .name   = "rtc alarm",
 176                 .flags  = IORESOURCE_IRQ,
 177         },
 178 };
 179
 180 struct platform_device pxa910_device_rtc = {
 181         .name           = "sa1100-rtc",
 182         .id             = -1,
 183         .num_resources  = ARRAY_SIZE(pxa910_resource_rtc),
 184         .resource       = pxa910_resource_rtc,
 185 };