arch/arm/mach-mmp/mmp2.c

   1 /*
   2  * linux/arch/arm/mach-mmp/mmp2.c
   3  *
   4  * code name MMP2
   5  *
   6  * Copyright (C) 2009 Marvell International Ltd.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12 #include <linux/clk/mmp.h>
  13 #include <linux/module.h>
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/io.h>
  17 #include <linux/irq.h>
  18 #include <linux/irqchip/mmp.h>
  19 #include <linux/platform_device.h>
  20
  21 #include <asm/hardware/cache-tauros2.h>
  22
  23 #include <asm/mach/time.h>
  24 #include "addr-map.h"
  25 #include "regs-apbc.h"
  26 #include "cputype.h"
  27 #include "irqs.h"
  28 #include "mfp.h"
  29 #include "devices.h"
  30 #include "mmp2.h"
  31 #include "pm-mmp2.h"
  32
  33 #include "common.h"
  34
  35 #define MFPR_VIRT_BASE  (APB_VIRT_BASE + 0x1e000)
  36
  37 static struct mfp_addr_map mmp2_addr_map[] __initdata = {
  38
  39         MFP_ADDR_X(GPIO0, GPIO58, 0x54),
  40         MFP_ADDR_X(GPIO59, GPIO73, 0x280),
  41         MFP_ADDR_X(GPIO74, GPIO101, 0x170),
  42
  43         MFP_ADDR(GPIO102, 0x0),
  44         MFP_ADDR(GPIO103, 0x4),
  45         MFP_ADDR(GPIO104, 0x1fc),
  46         MFP_ADDR(GPIO105, 0x1f8),
  47         MFP_ADDR(GPIO106, 0x1f4),
  48         MFP_ADDR(GPIO107, 0x1f0),
  49         MFP_ADDR(GPIO108, 0x21c),
  50         MFP_ADDR(GPIO109, 0x218),
  51         MFP_ADDR(GPIO110, 0x214),
  52         MFP_ADDR(GPIO111, 0x200),
  53         MFP_ADDR(GPIO112, 0x244),
  54         MFP_ADDR(GPIO113, 0x25c),
  55         MFP_ADDR(GPIO114, 0x164),
  56         MFP_ADDR_X(GPIO115, GPIO122, 0x260),
  57
  58         MFP_ADDR(GPIO123, 0x148),
  59         MFP_ADDR_X(GPIO124, GPIO141, 0xc),
  60
  61         MFP_ADDR(GPIO142, 0x8),
  62         MFP_ADDR_X(GPIO143, GPIO151, 0x220),
  63         MFP_ADDR_X(GPIO152, GPIO153, 0x248),
  64         MFP_ADDR_X(GPIO154, GPIO155, 0x254),
  65         MFP_ADDR_X(GPIO156, GPIO159, 0x14c),
  66
  67         MFP_ADDR(GPIO160, 0x250),
  68         MFP_ADDR(GPIO161, 0x210),
  69         MFP_ADDR(GPIO162, 0x20c),
  70         MFP_ADDR(GPIO163, 0x208),
  71         MFP_ADDR(GPIO164, 0x204),
  72         MFP_ADDR(GPIO165, 0x1ec),
  73         MFP_ADDR(GPIO166, 0x1e8),
  74         MFP_ADDR(GPIO167, 0x1e4),
  75         MFP_ADDR(GPIO168, 0x1e0),
  76
  77         MFP_ADDR_X(TWSI1_SCL, TWSI1_SDA, 0x140),
  78         MFP_ADDR_X(TWSI4_SCL, TWSI4_SDA, 0x2bc),
  79
  80         MFP_ADDR(PMIC_INT, 0x2c4),
  81         MFP_ADDR(CLK_REQ, 0x160),
  82
  83         MFP_ADDR_END,
  84 };
  85
  86 void mmp2_clear_pmic_int(void)
  87 {
  88         void __iomem *mfpr_pmic;
  89         unsigned long data;
  90
  91         mfpr_pmic = APB_VIRT_BASE + 0x1e000 + 0x2c4;
  92         data = __raw_readl(mfpr_pmic);
  93         __raw_writel(data | (1 << 6), mfpr_pmic);
  94         __raw_writel(data, mfpr_pmic);
  95 }
  96
  97 void __init mmp2_init_irq(void)
  98 {
  99         mmp2_init_icu();
 100 #ifdef CONFIG_PM
 101         icu_irq_chip.irq_set_wake = mmp2_set_wake;
 102 #endif
 103 }
 104
 105 static int __init mmp2_init(void)
 106 {
 107         if (cpu_is_mmp2()) {
 108 #ifdef CONFIG_CACHE_TAUROS2
 109                 tauros2_init(0);
 110 #endif
 111                 mfp_init_base(MFPR_VIRT_BASE);
 112                 mfp_init_addr(mmp2_addr_map);
 113                 mmp2_clk_init(APB_PHYS_BASE + 0x50000,
 114                               AXI_PHYS_BASE + 0x82800,
 115                               APB_PHYS_BASE + 0x15000);
 116         }
 117
 118         return 0;
 119 }
 120 postcore_initcall(mmp2_init);
 121
 122 #define APBC_TIMERS     APBC_REG(0x024)
 123
 124 void __init mmp2_timer_init(void)
 125 {
 126         unsigned long clk_rst;
 127
 128         __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
 129
 130         /*
 131          * enable bus/functional clock, enable 6.5MHz (divider 4),
 132          * release reset
 133          */
 134         clk_rst = APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1);
 135         __raw_writel(clk_rst, APBC_TIMERS);
 136
 137         timer_init(IRQ_MMP2_TIMER1);
 138 }
 139
 140 /* on-chip devices */
 141 MMP2_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4030000, 0x30, 4, 5);
 142 MMP2_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4017000, 0x30, 20, 21);
 143 MMP2_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4018000, 0x30, 22, 23);
 144 MMP2_DEVICE(uart4, "pxa2xx-uart", 3, UART4, 0xd4016000, 0x30, 18, 19);
 145 MMP2_DEVICE(twsi1, "pxa2xx-i2c", 0, TWSI1, 0xd4011000, 0x70);
 146 MMP2_DEVICE(twsi2, "pxa2xx-i2c", 1, TWSI2, 0xd4031000, 0x70);
 147 MMP2_DEVICE(twsi3, "pxa2xx-i2c", 2, TWSI3, 0xd4032000, 0x70);
 148 MMP2_DEVICE(twsi4, "pxa2xx-i2c", 3, TWSI4, 0xd4033000, 0x70);
 149 MMP2_DEVICE(twsi5, "pxa2xx-i2c", 4, TWSI5, 0xd4033800, 0x70);
 150 MMP2_DEVICE(twsi6, "pxa2xx-i2c", 5, TWSI6, 0xd4034000, 0x70);
 151 MMP2_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x100, 28, 29);
 152 MMP2_DEVICE(sdh0, "sdhci-pxav3", 0, MMC, 0xd4280000, 0x120);
 153 MMP2_DEVICE(sdh1, "sdhci-pxav3", 1, MMC2, 0xd4280800, 0x120);
 154 MMP2_DEVICE(sdh2, "sdhci-pxav3", 2, MMC3, 0xd4281000, 0x120);
 155 MMP2_DEVICE(sdh3, "sdhci-pxav3", 3, MMC4, 0xd4281800, 0x120);
 156 MMP2_DEVICE(asram, "asram", -1, NONE, 0xe0000000, 0x4000);
 157 /* 0xd1000000 ~ 0xd101ffff is reserved for secure processor */
 158 MMP2_DEVICE(isram, "isram", -1, NONE, 0xd1020000, 0x18000);
 159
 160 struct resource mmp2_resource_gpio[] = {
 161         {
 162                 .start  = 0xd4019000,
 163                 .end    = 0xd4019fff,
 164                 .flags  = IORESOURCE_MEM,
 165         }, {
 166                 .start  = IRQ_MMP2_GPIO,
 167                 .end    = IRQ_MMP2_GPIO,
 168                 .name   = "gpio_mux",
 169                 .flags  = IORESOURCE_IRQ,
 170         },
 171 };
 172
 173 struct platform_device mmp2_device_gpio = {
 174         .name           = "mmp2-gpio",
 175         .id             = -1,
 176         .num_resources  = ARRAY_SIZE(mmp2_resource_gpio),
 177         .resource       = mmp2_resource_gpio,
 178 };