linux/arch/arm/mach-pxa/colibri-pxa300.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  arch/arm/mach-pxa/colibri-pxa300.c
   4 *
   5 *  Support for Toradex PXA300/310 based Colibri module
   6 *
   7 *  Daniel Mack <daniel@caiaq.de>
   8 *  Matthias Meier <matthias.j.meier@gmx.net>
   9 */
  10
  11#include <linux/init.h>
  12#include <linux/kernel.h>
  13#include <linux/platform_device.h>
  14#include <linux/gpio.h>
  15#include <linux/interrupt.h>
  16
  17#include <asm/mach-types.h>
  18#include <linux/sizes.h>
  19#include <asm/mach/arch.h>
  20#include <asm/mach/irq.h>
  21
  22#include "pxa300.h"
  23#include "colibri.h"
  24#include <linux/platform_data/usb-ohci-pxa27x.h>
  25#include <linux/platform_data/video-pxafb.h>
  26#include <mach/audio.h>
  27
  28#include "generic.h"
  29#include "devices.h"
  30
  31
  32#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
  33static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
  34        /* MMC */
  35        GPIO7_MMC1_CLK,
  36        GPIO14_MMC1_CMD,
  37        GPIO3_MMC1_DAT0,
  38        GPIO4_MMC1_DAT1,
  39        GPIO5_MMC1_DAT2,
  40        GPIO6_MMC1_DAT3,
  41        GPIO13_GPIO,    /* GPIO13_COLIBRI_PXA300_SD_DETECT */
  42
  43        /* UHC */
  44        GPIO0_2_USBH_PEN,
  45        GPIO1_2_USBH_PWR,
  46        GPIO77_USB_P3_1,
  47        GPIO78_USB_P3_2,
  48        GPIO79_USB_P3_3,
  49        GPIO80_USB_P3_4,
  50        GPIO81_USB_P3_5,
  51        GPIO82_USB_P3_6,
  52
  53        /* I2C */
  54        GPIO21_I2C_SCL,
  55        GPIO22_I2C_SDA,
  56};
  57#else
  58static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
  59#endif
  60
  61#if defined(CONFIG_AX88796)
  62#define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO26_GPIO)
  63/*
  64 * Asix AX88796 Ethernet
  65 */
  66static struct ax_plat_data colibri_asix_platdata = {
  67        .flags          = 0, /* defined later */
  68        .wordlength     = 2,
  69};
  70
  71static struct resource colibri_asix_resource[] = {
  72        [0] = {
  73                .start = PXA3xx_CS2_PHYS,
  74                .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
  75                .flags = IORESOURCE_MEM,
  76        },
  77        [1] = {
  78                .start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
  79                .end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
  80                .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  81        }
  82};
  83
  84static struct platform_device asix_device = {
  85        .name           = "ax88796",
  86        .id             = 0,
  87        .num_resources  = ARRAY_SIZE(colibri_asix_resource),
  88        .resource       = colibri_asix_resource,
  89        .dev            = {
  90                .platform_data = &colibri_asix_platdata
  91        }
  92};
  93
  94static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
  95        GPIO1_nCS2,                     /* AX88796 chip select */
  96        GPIO26_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
  97};
  98
  99static void __init colibri_pxa300_init_eth(void)
 100{
 101        colibri_pxa3xx_init_eth(&colibri_asix_platdata);
 102        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
 103        platform_device_register(&asix_device);
 104}
 105#else
 106static inline void __init colibri_pxa300_init_eth(void) {}
 107#endif /* CONFIG_AX88796 */
 108
 109#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 110static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
 111        GPIO54_LCD_LDD_0,
 112        GPIO55_LCD_LDD_1,
 113        GPIO56_LCD_LDD_2,
 114        GPIO57_LCD_LDD_3,
 115        GPIO58_LCD_LDD_4,
 116        GPIO59_LCD_LDD_5,
 117        GPIO60_LCD_LDD_6,
 118        GPIO61_LCD_LDD_7,
 119        GPIO62_LCD_LDD_8,
 120        GPIO63_LCD_LDD_9,
 121        GPIO64_LCD_LDD_10,
 122        GPIO65_LCD_LDD_11,
 123        GPIO66_LCD_LDD_12,
 124        GPIO67_LCD_LDD_13,
 125        GPIO68_LCD_LDD_14,
 126        GPIO69_LCD_LDD_15,
 127        GPIO70_LCD_LDD_16,
 128        GPIO71_LCD_LDD_17,
 129        GPIO62_LCD_CS_N,
 130        GPIO72_LCD_FCLK,
 131        GPIO73_LCD_LCLK,
 132        GPIO74_LCD_PCLK,
 133        GPIO75_LCD_BIAS,
 134        GPIO76_LCD_VSYNC,
 135};
 136
 137static void __init colibri_pxa300_init_lcd(void)
 138{
 139        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
 140}
 141
 142#else
 143static inline void colibri_pxa300_init_lcd(void) {}
 144#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
 145
 146#if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
 147static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
 148        GPIO24_AC97_SYSCLK,
 149        GPIO23_AC97_nACRESET,
 150        GPIO25_AC97_SDATA_IN_0,
 151        GPIO27_AC97_SDATA_OUT,
 152        GPIO28_AC97_SYNC,
 153        GPIO29_AC97_BITCLK
 154};
 155
 156static inline void __init colibri_pxa310_init_ac97(void)
 157{
 158        /* no AC97 codec on Colibri PXA300 */
 159        if (!cpu_is_pxa310())
 160                return;
 161
 162        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
 163        pxa_set_ac97_info(NULL);
 164}
 165#else
 166static inline void colibri_pxa310_init_ac97(void) {}
 167#endif
 168
 169void __init colibri_pxa300_init(void)
 170{
 171        colibri_pxa300_init_eth();
 172        colibri_pxa3xx_init_nand();
 173        colibri_pxa300_init_lcd();
 174        colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
 175        colibri_pxa310_init_ac97();
 176
 177        /* Evalboard init */
 178        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
 179        colibri_evalboard_init();
 180}
 181
 182MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
 183        .atag_offset    = 0x100,
 184        .init_machine   = colibri_pxa300_init,
 185        .map_io         = pxa3xx_map_io,
 186        .nr_irqs        = PXA_NR_IRQS,
 187        .init_irq       = pxa3xx_init_irq,
 188        .handle_irq     = pxa3xx_handle_irq,
 189        .init_time      = pxa_timer_init,
 190        .restart        = pxa_restart,
 191MACHINE_END
 192
 193