arch/arm/mach-mmp/pxa910.c

   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
  32 static 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
  80 void __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
  88 static 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 }
 104 postcore_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
 110 void __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  */
 134 PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
 135 PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
 136 PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 137 PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
 138 PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
 139 PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
 140 PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
 141 PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
 142 PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
 143 PXA910_DEVICE(disp, "mmp-disp", 0, LCD, 0xd420b000, 0x1ec);
 144 PXA910_DEVICE(fb, "mmp-fb", -1, NONE, 0, 0);
 145 PXA910_DEVICE(panel, "tpo-hvga", -1, NONE, 0, 0);
 146
 147 struct 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
 160 struct 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
 167 static 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
 185 struct 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 };