LXR linux/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
  31static 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
  79void __init pxa910_init_irq(void)
  80{
  81        icu_init_irq();
  82}
  83
  84static 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}
  98postcore_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
 104void __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/* on-chip devices */
 114
 115/* NOTE: there are totally 3 UARTs on PXA910:
 116 *
 117 *   UART1   - Slow UART (can be used both by AP and CP)
 118 *   UART2/3 - Fast UART
 119 *
 120 * To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
 121 * they are re-ordered as:
 122 *
 123 *   pxa910_device_uart1 - UART2 as FFUART
 124 *   pxa910_device_uart2 - UART3 as BTUART
 125 *
 126 * UART1 is not used by AP for the moment.
 127 */
 128PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
 129PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
 130PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 131PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
 132PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
 133PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
 134PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
 135PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
 136PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
 137PXA910_DEVICE(disp, "mmp-disp", 0, LCD, 0xd420b000, 0x1ec);
 138PXA910_DEVICE(fb, "mmp-fb", -1, NONE, 0, 0);
 139PXA910_DEVICE(panel, "tpo-hvga", -1, NONE, 0, 0);
 140
 141struct resource pxa910_resource_gpio[] = {
 142        {
 143                .start  = 0xd4019000,
 144                .end    = 0xd4019fff,
 145                .flags  = IORESOURCE_MEM,
 146        }, {
 147                .start  = IRQ_PXA910_AP_GPIO,
 148                .end    = IRQ_PXA910_AP_GPIO,
 149                .name   = "gpio_mux",
 150                .flags  = IORESOURCE_IRQ,
 151        },
 152};
 153
 154struct platform_device pxa910_device_gpio = {
 155        .name           = "mmp-gpio",
 156        .id             = -1,
 157        .num_resources  = ARRAY_SIZE(pxa910_resource_gpio),
 158        .resource       = pxa910_resource_gpio,
 159};
 160
 161static struct resource pxa910_resource_rtc[] = {
 162        {
 163                .start  = 0xd4010000,
 164                .end    = 0xd401003f,
 165                .flags  = IORESOURCE_MEM,
 166        }, {
 167                .start  = IRQ_PXA910_RTC_INT,
 168                .end    = IRQ_PXA910_RTC_INT,
 169                .name   = "rtc 1Hz",
 170                .flags  = IORESOURCE_IRQ,
 171        }, {
 172                .start  = IRQ_PXA910_RTC_ALARM,
 173                .end    = IRQ_PXA910_RTC_ALARM,
 174                .name   = "rtc alarm",
 175                .flags  = IORESOURCE_IRQ,
 176        },
 177};
 178
 179struct platform_device pxa910_device_rtc = {
 180        .name           = "sa1100-rtc",
 181        .id             = -1,
 182        .num_resources  = ARRAY_SIZE(pxa910_resource_rtc),
 183        .resource       = pxa910_resource_rtc,
 184};
 185