linux/arch/arm/mach-pxa/colibri-pxa320.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  arch/arm/mach-pxa/colibri-pxa320.c
   4 *
   5 *  Support for Toradex PXA320/310 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/machine.h>
  15#include <linux/gpio.h>
  16#include <linux/interrupt.h>
  17
  18#include <asm/mach-types.h>
  19#include <linux/sizes.h>
  20#include <asm/mach/arch.h>
  21#include <asm/mach/irq.h>
  22
  23#include "pxa320.h"
  24#include "colibri.h"
  25#include <linux/platform_data/video-pxafb.h>
  26#include <linux/platform_data/usb-ohci-pxa27x.h>
  27#include <mach/audio.h>
  28#include "pxa27x-udc.h"
  29#include "udc.h"
  30
  31#include "generic.h"
  32#include "devices.h"
  33
  34#ifdef  CONFIG_MACH_COLIBRI_EVALBOARD
  35static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
  36        /* MMC */
  37        GPIO22_MMC1_CLK,
  38        GPIO23_MMC1_CMD,
  39        GPIO18_MMC1_DAT0,
  40        GPIO19_MMC1_DAT1,
  41        GPIO20_MMC1_DAT2,
  42        GPIO21_MMC1_DAT3,
  43        GPIO28_GPIO,    /* SD detect */
  44
  45        /* UART 1 configuration (may be set by bootloader) */
  46        GPIO99_UART1_CTS,
  47        GPIO104_UART1_RTS,
  48        GPIO97_UART1_RXD,
  49        GPIO98_UART1_TXD,
  50        GPIO101_UART1_DTR,
  51        GPIO103_UART1_DSR,
  52        GPIO100_UART1_DCD,
  53        GPIO102_UART1_RI,
  54
  55        /* UART 2 configuration */
  56        GPIO109_UART2_CTS,
  57        GPIO112_UART2_RTS,
  58        GPIO110_UART2_RXD,
  59        GPIO111_UART2_TXD,
  60
  61        /* UART 3 configuration */
  62        GPIO30_UART3_RXD,
  63        GPIO31_UART3_TXD,
  64
  65        /* UHC */
  66        GPIO2_2_USBH_PEN,
  67        GPIO3_2_USBH_PWR,
  68
  69        /* I2C */
  70        GPIO32_I2C_SCL,
  71        GPIO33_I2C_SDA,
  72
  73        /* PCMCIA */
  74        MFP_CFG(GPIO59, AF7),   /* PRST ; AF7 to tristate */
  75        MFP_CFG(GPIO61, AF7),   /* PCE1 ; AF7 to tristate */
  76        MFP_CFG(GPIO60, AF7),   /* PCE2 ; AF7 to tristate */
  77        MFP_CFG(GPIO62, AF7),   /* PCD ; AF7 to tristate */
  78        MFP_CFG(GPIO56, AF7),   /* PSKTSEL ; AF7 to tristate */
  79        GPIO27_GPIO,            /* RDnWR ; input/tristate */
  80        GPIO50_GPIO,            /* PREG ; input/tristate */
  81        GPIO2_RDY,
  82        GPIO5_NPIOR,
  83        GPIO6_NPIOW,
  84        GPIO7_NPIOS16,
  85        GPIO8_NPWAIT,
  86        GPIO29_GPIO,            /* PRDY (READY GPIO) */
  87        GPIO57_GPIO,            /* PPEN (POWER GPIO) */
  88        GPIO81_GPIO,            /* PCD (DETECT GPIO) */
  89        GPIO77_GPIO,            /* PRST (RESET GPIO) */
  90        GPIO53_GPIO,            /* PBVD1 */
  91        GPIO79_GPIO,            /* PBVD2 */
  92        GPIO54_GPIO,            /* POE */
  93};
  94#else
  95static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
  96#endif
  97
  98#if defined(CONFIG_AX88796)
  99#define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_GPIO)
 100/*
 101 * Asix AX88796 Ethernet
 102 */
 103static struct ax_plat_data colibri_asix_platdata = {
 104        .flags          = 0, /* defined later */
 105        .wordlength     = 2,
 106};
 107
 108static struct resource colibri_asix_resource[] = {
 109        [0] = {
 110                .start = PXA3xx_CS2_PHYS,
 111                .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
 112                .flags = IORESOURCE_MEM,
 113        },
 114        [1] = {
 115                .start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 116                .end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 117                .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 118        }
 119};
 120
 121static struct platform_device asix_device = {
 122        .name           = "ax88796",
 123        .id             = 0,
 124        .num_resources  = ARRAY_SIZE(colibri_asix_resource),
 125        .resource       = colibri_asix_resource,
 126        .dev            = {
 127                .platform_data = &colibri_asix_platdata
 128        }
 129};
 130
 131static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
 132        GPIO3_nCS2,                     /* AX88796 chip select */
 133        GPIO36_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
 134};
 135
 136static void __init colibri_pxa320_init_eth(void)
 137{
 138        colibri_pxa3xx_init_eth(&colibri_asix_platdata);
 139        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
 140        platform_device_register(&asix_device);
 141}
 142#else
 143static inline void __init colibri_pxa320_init_eth(void) {}
 144#endif /* CONFIG_AX88796 */
 145
 146#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
 147static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
 148        .dev_id = "gpio-vbus",
 149        .table = {
 150                GPIO_LOOKUP("gpio-pxa", MFP_PIN_GPIO96,
 151                            "vbus", GPIO_ACTIVE_HIGH),
 152                { },
 153        },
 154};
 155
 156static struct platform_device colibri_pxa320_gpio_vbus = {
 157        .name   = "gpio-vbus",
 158        .id     = -1,
 159};
 160
 161static void colibri_pxa320_udc_command(int cmd)
 162{
 163        if (cmd == PXA2XX_UDC_CMD_CONNECT)
 164                UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
 165        else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
 166                UP2OCR = UP2OCR_HXOE;
 167}
 168
 169static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
 170        .udc_command            = colibri_pxa320_udc_command,
 171        .gpio_pullup            = -1,
 172};
 173
 174static void __init colibri_pxa320_init_udc(void)
 175{
 176        pxa_set_udc_info(&colibri_pxa320_udc_info);
 177        gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
 178        platform_device_register(&colibri_pxa320_gpio_vbus);
 179}
 180#else
 181static inline void colibri_pxa320_init_udc(void) {}
 182#endif
 183
 184#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 185static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
 186        GPIO6_2_LCD_LDD_0,
 187        GPIO7_2_LCD_LDD_1,
 188        GPIO8_2_LCD_LDD_2,
 189        GPIO9_2_LCD_LDD_3,
 190        GPIO10_2_LCD_LDD_4,
 191        GPIO11_2_LCD_LDD_5,
 192        GPIO12_2_LCD_LDD_6,
 193        GPIO13_2_LCD_LDD_7,
 194        GPIO63_LCD_LDD_8,
 195        GPIO64_LCD_LDD_9,
 196        GPIO65_LCD_LDD_10,
 197        GPIO66_LCD_LDD_11,
 198        GPIO67_LCD_LDD_12,
 199        GPIO68_LCD_LDD_13,
 200        GPIO69_LCD_LDD_14,
 201        GPIO70_LCD_LDD_15,
 202        GPIO71_LCD_LDD_16,
 203        GPIO72_LCD_LDD_17,
 204        GPIO73_LCD_CS_N,
 205        GPIO74_LCD_VSYNC,
 206        GPIO14_2_LCD_FCLK,
 207        GPIO15_2_LCD_LCLK,
 208        GPIO16_2_LCD_PCLK,
 209        GPIO17_2_LCD_BIAS,
 210};
 211
 212static void __init colibri_pxa320_init_lcd(void)
 213{
 214        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 215}
 216#else
 217static inline void colibri_pxa320_init_lcd(void) {}
 218#endif
 219
 220#if     defined(CONFIG_SND_AC97_CODEC) || \
 221        defined(CONFIG_SND_AC97_CODEC_MODULE)
 222static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
 223        GPIO34_AC97_SYSCLK,
 224        GPIO35_AC97_SDATA_IN_0,
 225        GPIO37_AC97_SDATA_OUT,
 226        GPIO38_AC97_SYNC,
 227        GPIO39_AC97_BITCLK,
 228        GPIO40_AC97_nACRESET
 229};
 230
 231static inline void __init colibri_pxa320_init_ac97(void)
 232{
 233        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
 234        pxa_set_ac97_info(NULL);
 235}
 236#else
 237static inline void colibri_pxa320_init_ac97(void) {}
 238#endif
 239
 240void __init colibri_pxa320_init(void)
 241{
 242        colibri_pxa320_init_eth();
 243        colibri_pxa3xx_init_nand();
 244        colibri_pxa320_init_lcd();
 245        colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
 246        colibri_pxa320_init_ac97();
 247        colibri_pxa320_init_udc();
 248
 249        /* Evalboard init */
 250        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
 251        colibri_evalboard_init();
 252}
 253
 254MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
 255        .atag_offset    = 0x100,
 256        .init_machine   = colibri_pxa320_init,
 257        .map_io         = pxa3xx_map_io,
 258        .nr_irqs        = PXA_NR_IRQS,
 259        .init_irq       = pxa3xx_init_irq,
 260        .handle_irq     = pxa3xx_handle_irq,
 261        .init_time      = pxa_timer_init,
 262        .restart        = pxa_restart,
 263MACHINE_END
 264
 265