linux/arch/arm/mach-mmp/pxa910.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  linux/arch/arm/mach-mmp/pxa910.c
   4 *
   5 *  Code specific to PXA910
   6 */
   7#include <linux/clk/mmp.h>
   8#include <linux/module.h>
   9#include <linux/kernel.h>
  10#include <linux/init.h>
  11#include <linux/list.h>
  12#include <linux/io.h>
  13#include <linux/irq.h>
  14#include <linux/irqchip/mmp.h>
  15#include <linux/platform_device.h>
  16
  17#include <asm/hardware/cache-tauros2.h>
  18#include <asm/mach/time.h>
  19#include "addr-map.h"
  20#include "regs-apbc.h"
  21#include <linux/soc/mmp/cputype.h>
  22#include "irqs.h"
  23#include "mfp.h"
  24#include "devices.h"
  25#include "pm-pxa910.h"
  26#include "pxa910.h"
  27
  28#include "common.h"
  29
  30#define MFPR_VIRT_BASE  (APB_VIRT_BASE + 0x1e000)
  31
  32static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
  33{
  34        MFP_ADDR_X(GPIO0, GPIO54, 0xdc),
  35        MFP_ADDR_X(GPIO67, GPIO98, 0x1b8),
  36        MFP_ADDR_X(GPIO100, GPIO109, 0x238),
  37
  38        MFP_ADDR(GPIO123, 0xcc),
  39        MFP_ADDR(GPIO124, 0xd0),
  40
  41        MFP_ADDR(DF_IO0, 0x40),
  42        MFP_ADDR(DF_IO1, 0x3c),
  43        MFP_ADDR(DF_IO2, 0x38),
  44        MFP_ADDR(DF_IO3, 0x34),
  45        MFP_ADDR(DF_IO4, 0x30),
  46        MFP_ADDR(DF_IO5, 0x2c),
  47        MFP_ADDR(DF_IO6, 0x28),
  48        MFP_ADDR(DF_IO7, 0x24),
  49        MFP_ADDR(DF_IO8, 0x20),
  50        MFP_ADDR(DF_IO9, 0x1c),
  51        MFP_ADDR(DF_IO10, 0x18),
  52        MFP_ADDR(DF_IO11, 0x14),
  53        MFP_ADDR(DF_IO12, 0x10),
  54        MFP_ADDR(DF_IO13, 0xc),
  55        MFP_ADDR(DF_IO14, 0x8),
  56        MFP_ADDR(DF_IO15, 0x4),
  57
  58        MFP_ADDR(DF_nCS0_SM_nCS2, 0x44),
  59        MFP_ADDR(DF_nCS1_SM_nCS3, 0x48),
  60        MFP_ADDR(SM_nCS0, 0x4c),
  61        MFP_ADDR(SM_nCS1, 0x50),
  62        MFP_ADDR(DF_WEn, 0x54),
  63        MFP_ADDR(DF_REn, 0x58),
  64        MFP_ADDR(DF_CLE_SM_OEn, 0x5c),
  65        MFP_ADDR(DF_ALE_SM_WEn, 0x60),
  66        MFP_ADDR(SM_SCLK, 0x64),
  67        MFP_ADDR(DF_RDY0, 0x68),
  68        MFP_ADDR(SM_BE0, 0x6c),
  69        MFP_ADDR(SM_BE1, 0x70),
  70        MFP_ADDR(SM_ADV, 0x74),
  71        MFP_ADDR(DF_RDY1, 0x78),
  72        MFP_ADDR(SM_ADVMUX, 0x7c),
  73        MFP_ADDR(SM_RDY, 0x80),
  74
  75        MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84),
  76
  77        MFP_ADDR_END,
  78};
  79
  80void __init pxa910_init_irq(void)
  81{
  82        icu_init_irq();
  83#ifdef CONFIG_PM
  84        icu_irq_chip.irq_set_wake = pxa910_set_wake;
  85#endif
  86}
  87
  88static int __init pxa910_init(void)
  89{
  90        if (cpu_is_pxa910()) {
  91#ifdef CONFIG_CACHE_TAUROS2
  92                tauros2_init(0);
  93#endif
  94                mfp_init_base(MFPR_VIRT_BASE);
  95                mfp_init_addr(pxa910_mfp_addr_map);
  96                pxa910_clk_init(APB_PHYS_BASE + 0x50000,
  97                                AXI_PHYS_BASE + 0x82800,
  98                                APB_PHYS_BASE + 0x15000,
  99                                APB_PHYS_BASE + 0x3b000);
 100        }
 101
 102        return 0;
 103}
 104postcore_initcall(pxa910_init);
 105
 106/* system timer - clock enabled, 3.25MHz */
 107#define TIMER_CLK_RST   (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
 108#define APBC_TIMERS     APBC_REG(0x34)
 109
 110void __init pxa910_timer_init(void)
 111{
 112        /* reset and configure */
 113        __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
 114        __raw_writel(TIMER_CLK_RST, APBC_TIMERS);
 115
 116        mmp_timer_init(IRQ_PXA910_AP1_TIMER1, 3250000);
 117}
 118
 119/* on-chip devices */
 120
 121/* NOTE: there are totally 3 UARTs on PXA910:
 122 *
 123 *   UART1   - Slow UART (can be used both by AP and CP)
 124 *   UART2/3 - Fast UART
 125 *
 126 * To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
 127 * they are re-ordered as:
 128 *
 129 *   pxa910_device_uart1 - UART2 as FFUART
 130 *   pxa910_device_uart2 - UART3 as BTUART
 131 *
 132 * UART1 is not used by AP for the moment.
 133 */
 134PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
 135PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
 136PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 137PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
 138PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
 139PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
 140PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
 141PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
 142PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
 143PXA910_DEVICE(disp, "mmp-disp", 0, LCD, 0xd420b000, 0x1ec);
 144PXA910_DEVICE(fb, "mmp-fb", -1, NONE, 0, 0);
 145PXA910_DEVICE(panel, "tpo-hvga", -1, NONE, 0, 0);
 146
 147struct resource pxa910_resource_gpio[] = {
 148        {
 149                .start  = 0xd4019000,
 150                .end    = 0xd4019fff,
 151                .flags  = IORESOURCE_MEM,
 152        }, {
 153                .start  = IRQ_PXA910_AP_GPIO,
 154                .end    = IRQ_PXA910_AP_GPIO,
 155                .name   = "gpio_mux",
 156                .flags  = IORESOURCE_IRQ,
 157        },
 158};
 159
 160struct platform_device pxa910_device_gpio = {
 161        .name           = "mmp-gpio",
 162        .id             = -1,
 163        .num_resources  = ARRAY_SIZE(pxa910_resource_gpio),
 164        .resource       = pxa910_resource_gpio,
 165};
 166
 167static struct resource pxa910_resource_rtc[] = {
 168        {
 169                .start  = 0xd4010000,
 170                .end    = 0xd401003f,
 171                .flags  = IORESOURCE_MEM,
 172        }, {
 173                .start  = IRQ_PXA910_RTC_INT,
 174                .end    = IRQ_PXA910_RTC_INT,
 175                .name   = "rtc 1Hz",
 176                .flags  = IORESOURCE_IRQ,
 177        }, {
 178                .start  = IRQ_PXA910_RTC_ALARM,
 179                .end    = IRQ_PXA910_RTC_ALARM,
 180                .name   = "rtc alarm",
 181                .flags  = IORESOURCE_IRQ,
 182        },
 183};
 184
 185struct platform_device pxa910_device_rtc = {
 186        .name           = "sa1100-rtc",
 187        .id             = -1,
 188        .num_resources  = ARRAY_SIZE(pxa910_resource_rtc),
 189        .resource       = pxa910_resource_rtc,
 190};
 191