diff options
Diffstat (limited to 'arch/arm/mach-pxa/colibri-pxa320.c')
| -rw-r--r-- | arch/arm/mach-pxa/colibri-pxa320.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c new file mode 100644 index 000000000..1a59056e1 --- /dev/null +++ b/arch/arm/mach-pxa/colibri-pxa320.c @@ -0,0 +1,264 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * arch/arm/mach-pxa/colibri-pxa320.c + * + * Support for Toradex PXA320/310 based Colibri module + * + * Daniel Mack <daniel@caiaq.de> + * Matthias Meier <matthias.j.meier@gmx.net> + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/gpio/machine.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> + +#include <asm/mach-types.h> +#include <linux/sizes.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> + +#include "pxa320.h" +#include "colibri.h" +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/usb-ohci-pxa27x.h> +#include <linux/platform_data/asoc-pxa.h> +#include "pxa27x-udc.h" +#include "udc.h" + +#include "generic.h" +#include "devices.h" + +#ifdef CONFIG_MACH_COLIBRI_EVALBOARD +static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = { + /* MMC */ + GPIO22_MMC1_CLK, + GPIO23_MMC1_CMD, + GPIO18_MMC1_DAT0, + GPIO19_MMC1_DAT1, + GPIO20_MMC1_DAT2, + GPIO21_MMC1_DAT3, + GPIO28_GPIO, /* SD detect */ + + /* UART 1 configuration (may be set by bootloader) */ + GPIO99_UART1_CTS, + GPIO104_UART1_RTS, + GPIO97_UART1_RXD, + GPIO98_UART1_TXD, + GPIO101_UART1_DTR, + GPIO103_UART1_DSR, + GPIO100_UART1_DCD, + GPIO102_UART1_RI, + + /* UART 2 configuration */ + GPIO109_UART2_CTS, + GPIO112_UART2_RTS, + GPIO110_UART2_RXD, + GPIO111_UART2_TXD, + + /* UART 3 configuration */ + GPIO30_UART3_RXD, + GPIO31_UART3_TXD, + + /* UHC */ + GPIO2_2_USBH_PEN, + GPIO3_2_USBH_PWR, + + /* I2C */ + GPIO32_I2C_SCL, + GPIO33_I2C_SDA, + + /* PCMCIA */ + MFP_CFG(GPIO59, AF7), /* PRST ; AF7 to tristate */ + MFP_CFG(GPIO61, AF7), /* PCE1 ; AF7 to tristate */ + MFP_CFG(GPIO60, AF7), /* PCE2 ; AF7 to tristate */ + MFP_CFG(GPIO62, AF7), /* PCD ; AF7 to tristate */ + MFP_CFG(GPIO56, AF7), /* PSKTSEL ; AF7 to tristate */ + GPIO27_GPIO, /* RDnWR ; input/tristate */ + GPIO50_GPIO, /* PREG ; input/tristate */ + GPIO2_RDY, + GPIO5_NPIOR, + GPIO6_NPIOW, + GPIO7_NPIOS16, + GPIO8_NPWAIT, + GPIO29_GPIO, /* PRDY (READY GPIO) */ + GPIO57_GPIO, /* PPEN (POWER GPIO) */ + GPIO81_GPIO, /* PCD (DETECT GPIO) */ + GPIO77_GPIO, /* PRST (RESET GPIO) */ + GPIO53_GPIO, /* PBVD1 */ + GPIO79_GPIO, /* PBVD2 */ + GPIO54_GPIO, /* POE */ +}; +#else +static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {}; +#endif + +#if defined(CONFIG_AX88796) +#define COLIBRI_ETH_IRQ_GPIO mfp_to_gpio(GPIO36_GPIO) +/* + * Asix AX88796 Ethernet + */ +static struct ax_plat_data colibri_asix_platdata = { + .flags = 0, /* defined later */ + .wordlength = 2, +}; + +static struct resource colibri_asix_resource[] = { + [0] = { + .start = PXA3xx_CS2_PHYS, + .end = PXA3xx_CS2_PHYS + (0x20 * 2) - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO), + .end = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO), + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING, + } +}; + +static struct platform_device asix_device = { + .name = "ax88796", + .id = 0, + .num_resources = ARRAY_SIZE(colibri_asix_resource), + .resource = colibri_asix_resource, + .dev = { + .platform_data = &colibri_asix_platdata + } +}; + +static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = { + GPIO3_nCS2, /* AX88796 chip select */ + GPIO36_GPIO | MFP_PULL_HIGH /* AX88796 IRQ */ +}; + +static void __init colibri_pxa320_init_eth(void) +{ + colibri_pxa3xx_init_eth(&colibri_asix_platdata); + pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config)); + platform_device_register(&asix_device); +} +#else +static inline void __init colibri_pxa320_init_eth(void) {} +#endif /* CONFIG_AX88796 */ + +#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE) +static struct gpiod_lookup_table gpio_vbus_gpiod_table = { + .dev_id = "gpio-vbus", + .table = { + GPIO_LOOKUP("gpio-pxa", MFP_PIN_GPIO96, + "vbus", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static struct platform_device colibri_pxa320_gpio_vbus = { + .name = "gpio-vbus", + .id = -1, +}; + +static void colibri_pxa320_udc_command(int cmd) +{ + if (cmd == PXA2XX_UDC_CMD_CONNECT) + UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE; + else if (cmd == PXA2XX_UDC_CMD_DISCONNECT) + UP2OCR = UP2OCR_HXOE; +} + +static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = { + .udc_command = colibri_pxa320_udc_command, + .gpio_pullup = -1, +}; + +static void __init colibri_pxa320_init_udc(void) +{ + pxa_set_udc_info(&colibri_pxa320_udc_info); + gpiod_add_lookup_table(&gpio_vbus_gpiod_table); + platform_device_register(&colibri_pxa320_gpio_vbus); +} +#else +static inline void colibri_pxa320_init_udc(void) {} +#endif + +#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) +static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = { + GPIO6_2_LCD_LDD_0, + GPIO7_2_LCD_LDD_1, + GPIO8_2_LCD_LDD_2, + GPIO9_2_LCD_LDD_3, + GPIO10_2_LCD_LDD_4, + GPIO11_2_LCD_LDD_5, + GPIO12_2_LCD_LDD_6, + GPIO13_2_LCD_LDD_7, + GPIO63_LCD_LDD_8, + GPIO64_LCD_LDD_9, + GPIO65_LCD_LDD_10, + GPIO66_LCD_LDD_11, + GPIO67_LCD_LDD_12, + GPIO68_LCD_LDD_13, + GPIO69_LCD_LDD_14, + GPIO70_LCD_LDD_15, + GPIO71_LCD_LDD_16, + GPIO72_LCD_LDD_17, + GPIO73_LCD_CS_N, + GPIO74_LCD_VSYNC, + GPIO14_2_LCD_FCLK, + GPIO15_2_LCD_LCLK, + GPIO16_2_LCD_PCLK, + GPIO17_2_LCD_BIAS, +}; + +static void __init colibri_pxa320_init_lcd(void) +{ + pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config)); +} +#else +static inline void colibri_pxa320_init_lcd(void) {} +#endif + +#if defined(CONFIG_SND_AC97_CODEC) || \ + defined(CONFIG_SND_AC97_CODEC_MODULE) +static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = { + GPIO34_AC97_SYSCLK, + GPIO35_AC97_SDATA_IN_0, + GPIO37_AC97_SDATA_OUT, + GPIO38_AC97_SYNC, + GPIO39_AC97_BITCLK, + GPIO40_AC97_nACRESET +}; + +static inline void __init colibri_pxa320_init_ac97(void) +{ + pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config)); + pxa_set_ac97_info(NULL); +} +#else +static inline void colibri_pxa320_init_ac97(void) {} +#endif + +void __init colibri_pxa320_init(void) +{ + colibri_pxa320_init_eth(); + colibri_pxa3xx_init_nand(); + colibri_pxa320_init_lcd(); + colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO)); + colibri_pxa320_init_ac97(); + colibri_pxa320_init_udc(); + + /* Evalboard init */ + pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config)); + colibri_evalboard_init(); +} + +MACHINE_START(COLIBRI320, "Toradex Colibri PXA320") + .atag_offset = 0x100, + .init_machine = colibri_pxa320_init, + .map_io = pxa3xx_map_io, + .nr_irqs = PXA_NR_IRQS, + .init_irq = pxa3xx_init_irq, + .handle_irq = pxa3xx_handle_irq, + .init_time = pxa_timer_init, + .restart = pxa_restart, +MACHINE_END + |