/*
* arch/arm/mach-at91/at91sam9263_devices.c
*
* Copyright (C) 2007 Atmel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*/
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <linux/platform_device.h>
#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
#include <asm/arch/at91sam9263.h>
#include <asm/arch/at91sam926x_mc.h>
#include <asm/arch/at91sam9263_matrix.h>
#include "generic.h"
#define SZ_512 0x00000200
#define SZ_256 0x00000100
#define SZ_16 0x00000010
/* --------------------------------------------------------------------
* USB Host
* -------------------------------------------------------------------- */
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static u64 ohci_dmamask = 0xffffffffUL;
static struct at91_usbh_data usbh_data;
static struct resource usbh_resources[] = {
[0] = {
.start = AT91SAM9263_UHP_BASE,
.end = AT91SAM9263_UHP_BASE + SZ_1M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_UHP,
.end = AT91SAM9263_ID_UHP,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91_usbh_device = {
.name = "at91_ohci",
.id = -1,
.dev = {
.dma_mask = &ohci_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &usbh_data,
},
.resource = usbh_resources,
.num_resources = ARRAY_SIZE(usbh_resources),
};
void __init at91_add_device_usbh(struct at91_usbh_data *data)
{
int i;
if (!data)
return;
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (data->vbus_pin[i])
at91_set_gpio_output(data->vbus_pin[i], 0);
}
usbh_data = *data;
platform_device_register(&at91_usbh_device);
}
#else
void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
#endif
/* --------------------------------------------------------------------
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_GADGET_AT91
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_UDP,
.end = AT91SAM9263_BASE_UDP + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_UDP,
.end = AT91SAM9263_ID_UDP,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91_udc_device = {
.name = "at91_udc",
.id = -1,
.dev = {
.platform_data = &udc_data,
},
.resource = udc_resources,
.num_resources = ARRAY_SIZE(udc_resources),
};
void __init at91_add_device_udc(struct at91_udc_data *data)
{
if (!data)
return;
if (data->vbus_pin) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
/* Pullup pin is handled internally by USB device peripheral */
udc_data = *data;
platform_device_register(&at91_udc_device);
}
#else
void __init at91_add_device_udc(struct at91_udc_data *data) {}
#endif
/* --------------------------------------------------------------------
* Ethernet
* -------------------------------------------------------------------- */
#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
static u64 eth_dmamask = 0xffffffffUL;
static struct at91_eth_data eth_data;
static struct resource eth_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_EMAC,
.end = AT91SAM9263_BASE_EMAC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_EMAC,
.end = AT91SAM9263_ID_EMAC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_eth_device = {
.name = "macb",
.id = -1,
.dev = {
.dma_mask = ð_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = ð_data,
},
.resource = eth_resources,
.num_resources = ARRAY_SIZE(eth_resources),
};
void __init at91_add_device_eth(struct at91_eth_data *data)
{
if (!data)
return;
if (data->phy_irq_pin) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
/* Pins used for MII and RMII */
at91_set_A_periph(AT91_PIN_PE21, 0); /* ETXCK_EREFCK */
at91_set_B_periph(AT91_PIN_PC25, 0); /* ERXDV */
at91_set_A_periph(AT91_PIN_PE25, 0); /* ERX0 */
at91_set_A_periph(AT91_PIN_PE26, 0); /* ERX1 */
at91_set_A_periph(AT91_PIN_PE27, 0); /* ERXER */
at91_set_A_periph(AT91_PIN_PE28, 0); /* ETXEN */
at91_set_A_periph(AT91_PIN_PE23, 0); /* ETX0 */
at91_set_A_periph(AT91_PIN_PE24, 0); /* ETX1 */
at91_set_A_periph(AT91_PIN_PE30, 0); /* EMDIO */
at91_set_A_periph(AT91_PIN_PE29, 0); /* EMDC */
if (!data->is_rmii) {
at91_set_A_periph(AT91_PIN_PE22, 0); /* ECRS */
at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
}
eth_data = *data;
platform_device_register(&at91sam9263_eth_device);
}
#else
void __init at91_add_device_eth(struct at91_eth_data *data) {}
#endif
/* --------------------------------------------------------------------
* MMC / SD
* -------------------------------------------------------------------- */
#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
static u64 mmc_dmamask = 0xffffffffUL;
static struct at91_mmc_data mmc0_data, mmc1_data;
static struct resource mmc0_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_MCI0,
.end = AT91SAM9263_BASE_MCI0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_MCI0,
.end = AT91SAM9263_ID_MCI0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_mmc0_device = {
.name = "at91_mci",
.id = 0,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &mmc0_data,
},
.resource = mmc0_resources,
.num_resources = ARRAY_SIZE(mmc0_resources),
};
static struct resource mmc1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_MCI1,
.end = AT91SAM9263_BASE_MCI1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_MCI1,
.end = AT91SAM9263_ID_MCI1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_mmc1_device = {
.name = "at91_mci",
.id = 1,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &mmc1_data,
},
.resource = mmc1_resources,
.num_resources = ARRAY_SIZE(mmc1_resources),
};
void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
{
if (!data)
return;
/* input/irq */
if (data->det_pin) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
at91_set_gpio_output(data->vcc_pin, 0);
if (mmc_id == 0) { /* MCI0 */
/* CLK */
at91_set_A_periph(AT91_PIN_PA12, 0);
if (data->slot_b) {
/* CMD */
at91_set_A_periph(AT91_PIN_PA16, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA17, 1);
if (data->wire4) {
at91_set_A_periph(AT91_PIN_PA18, 1);
at91_set_A_periph(AT91_PIN_PA19, 1);
at91_set_A_periph(AT91_PIN_PA20, 1);
}
} else {
/* CMD */
at91_set_A_periph(AT91_PIN_PA1, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA0, 1);
if (data->wire4) {
at91_set_A_periph(AT91_PIN_PA3, 1);
at91_set_A_periph(AT91_PIN_PA4, 1);
at91_set_A_periph(AT91_PIN_PA5, 1);
}
}
mmc0_data = *data;
at91_clock_associate("mci0_clk", &at91sam9263_mmc1_device.dev, "mci_clk");
platform_device_register(&at91sam9263_mmc0_device);
} else { /* MCI1 */
/* CLK */
at91_set_A_periph(AT91_PIN_PA6, 0);
if (data->slot_b) {
/* CMD */
at91_set_A_periph(AT91_PIN_PA21, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA22, 1);
if (data->wire4) {
at91_set_A_periph(AT91_PIN_PA23, 1);
at91_set_A_periph(AT91_PIN_PA24, 1);
at91_set_A_periph(AT91_PIN_PA25, 1);
}
} else {
/* CMD */
at91_set_A_periph(AT91_PIN_PA7, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA8, 1);
if (data->wire4) {
at91_set_A_periph(AT91_PIN_PA9, 1);
at91_set_A_periph(AT91_PIN_PA10, 1);
at91_set_A_periph(AT91_PIN_PA11, 1);
}
}
mmc1_data = *data;
at91_clock_associate("mci1_clk", &at91sam9263_mmc1_device.dev, "mci_clk");
platform_device_register(&at91sam9263_mmc1_device);
}
}
#else
void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
#endif
/* --------------------------------------------------------------------
* NAND / SmartMedia
* -------------------------------------------------------------------- */
#if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
static struct at91_nand_data nand_data;
#define NAND_BASE AT91_CHIPSELECT_3
static struct resource nand_resources[] = {
{
.start = NAND_BASE,
.end = NAND_BASE + SZ_256M - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9263_nand_device = {
.name = "at91_nand",
.id = -1,
.dev = {
.platform_data = &nand_data,
},
.resource = nand_resources,
.num_resources = ARRAY_SIZE(nand_resources),
};
void __init at91_add_device_nand(struct at91_nand_data *data)
{
unsigned long csa, mode;
if (!data)
return;
csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC);
/* set the bus interface characteristics */
at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
| AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
| AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
if (data->bus_width_16)
mode = AT91_SMC_DBW_16;
else
mode = AT91_SMC_DBW_8;
at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
/* enable pin */
if (data->enable_pin)
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
platform_device_register(&at91sam9263_nand_device);
}
#else
void __init at91_add_device_nand(struct at91_nand_data *data) {}
#endif
/* --------------------------------------------------------------------
* TWI (i2c)
* -------------------------------------------------------------------- */
#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
static struct resource twi_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_TWI,
.end = AT91SAM9263_BASE_TWI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_TWI,
.end = AT91SAM9263_ID_TWI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_twi_device = {
.name = "at91_i2c",
.id = -1,
.resource = twi_resources,
.num_resources = ARRAY_SIZE(twi_resources),
};
void __init at91_add_device_i2c(void)
{
/* pins used for TWI interface */
at91_set_A_periph(AT91_PIN_PB4, 0); /* TWD */
at91_set_multi_drive(AT91_PIN_PB4, 1);
at91_set_A_periph(AT91_PIN_PB5, 0); /* TWCK */
at91_set_multi_drive(AT91_PIN_PB5, 1);
platform_device_register(&at91sam9263_twi_device);
}
#else
void __init at91_add_device_i2c(void) {}
#endif
/* --------------------------------------------------------------------
* SPI
* -------------------------------------------------------------------- */
#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
static u64 spi_dmamask = 0xffffffffUL;
static struct resource spi0_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_SPI0,
.end = AT91SAM9263_BASE_SPI0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_SPI0,
.end = AT91SAM9263_ID_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_spi0_device = {
.name = "atmel_spi",
.id = 0,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = 0xffffffff,
},
.resource = spi0_resources,
.num_resources = ARRAY_SIZE(spi0_resources),
};
static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PB11 };
static struct resource spi1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_SPI1,
.end = AT91SAM9263_BASE_SPI1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_SPI1,
.end = AT91SAM9263_ID_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_spi1_device = {
.name = "atmel_spi",
.id = 1,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = 0xffffffff,
},
.resource = spi1_resources,
.num_resources = ARRAY_SIZE(spi1_resources),
};
static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
{
int i;
unsigned long cs_pin;
short enable_spi0 = 0;
short enable_spi1 = 0;
/* Choose SPI chip-selects */
for (i = 0; i < nr_devices; i++) {
if (devices[i].controller_data)
cs_pin = (unsigned long) devices[i].controller_data;
else if (devices[i].bus_num == 0)
cs_pin = spi0_standard_cs[devices[i].chip_select];
else
cs_pin = spi1_standard_cs[devices[i].chip_select];
if (devices[i].bus_num == 0)
enable_spi0 = 1;
else
enable_spi1 = 1;
/* enable chip-select pin */
at91_set_gpio_output(cs_pin, 1);
/* pass chip-select pin to driver */
devices[i].controller_data = (void *) cs_pin;
}
spi_register_board_info(devices, nr_devices);
/* Configure SPI bus(es) */
if (enable_spi0) {
at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
at91_clock_associate("spi0_clk", &at91sam9263_spi0_device.dev, "spi_clk");
platform_device_register(&at91sam9263_spi0_device);
}
if (enable_spi1) {
at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
at91_clock_associate("spi1_clk", &at91sam9263_spi1_device.dev, "spi_clk");
platform_device_register(&at91sam9263_spi1_device);
}
}
#else
void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
#endif
/* --------------------------------------------------------------------
* AC97
* -------------------------------------------------------------------- */
#if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
static u64 ac97_dmamask = 0xffffffffUL;
static struct atmel_ac97_data ac97_data;
static struct resource ac97_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_AC97C,
.end = AT91SAM9263_BASE_AC97C + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_AC97C,
.end = AT91SAM9263_ID_AC97C,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_ac97_device = {
.name = "ac97c",
.id = 1,
.dev = {
.dma_mask = &ac97_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &ac97_data,
},
.resource = ac97_resources,
.num_resources = ARRAY_SIZE(ac97_resources),
};
void __init at91_add_device_ac97(struct atmel_ac97_data *data)
{
if (!data)
return;
at91_set_A_periph(AT91_PIN_PB0, 0); /* AC97FS */
at91_set_A_periph(AT91_PIN_PB1, 0); /* AC97CK */
at91_set_A_periph(AT91_PIN_PB2, 0); /* AC97TX */
at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */
/* reset */
if (data->reset_pin)
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *ek_data;
platform_device_register(&at91sam9263_ac97_device);
}
#else
void __init at91_add_device_ac97(struct atmel_ac97_data *data) {}
#endif
/* --------------------------------------------------------------------
* LCD Controller
* -------------------------------------------------------------------- */
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
static u64 lcdc_dmamask = 0xffffffffUL;
static struct atmel_lcdfb_info lcdc_data;
static struct resource lcdc_resources[] = {
[0] = {
.start = AT91SAM9263_LCDC_BASE,
.end = AT91SAM9263_LCDC_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_LCDC,
.end = AT91SAM9263_ID_LCDC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91_lcdc_device = {
.name = "atmel_lcdfb",
.id = 0,
.dev = {
.dma_mask = &lcdc_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &lcdc_data,
},
.resource = lcdc_resources,
.num_resources = ARRAY_SIZE(lcdc_resources),
};
void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
{
if (!data)
return;
at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD13 */
at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD21 */
at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
lcdc_data = *data;
platform_device_register(&at91_lcdc_device);
}
#else
void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* UART
* -------------------------------------------------------------------- */
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_VA_BASE_SYS + AT91_DBGU,
.end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_ID_SYS,
.end = AT91_ID_SYS,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
.regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
};
static struct platform_device at91sam9263_dbgu_device = {
.name = "atmel_usart",
.id = 0,
.dev = {
.platform_data = &dbgu_data,
.coherent_dma_mask = 0xffffffff,
},
.resource = dbgu_resources,
.num_resources = ARRAY_SIZE(dbgu_resources),
};
static inline void configure_dbgu_pins(void)
{
at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
}
static struct resource uart0_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US0,
.end = AT91SAM9263_BASE_US0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_US0,
.end = AT91SAM9263_ID_US0,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static struct platform_device at91sam9263_uart0_device = {
.name = "atmel_usart",
.id = 1,
.dev = {
.platform_data = &uart0_data,
.coherent_dma_mask = 0xffffffff,
},
.resource = uart0_resources,
.num_resources = ARRAY_SIZE(uart0_resources),
};
static inline void configure_usart0_pins(void)
{
at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */
at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */
at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */
}
static struct resource uart1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US1,
.end = AT91SAM9263_BASE_US1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_US1,
.end = AT91SAM9263_ID_US1,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static struct platform_device at91sam9263_uart1_device = {
.name = "atmel_usart",
.id = 2,
.dev = {
.platform_data = &uart1_data,
.coherent_dma_mask = 0xffffffff,
},
.resource = uart1_resources,
.num_resources = ARRAY_SIZE(uart1_resources),
};
static inline void configure_usart1_pins(void)
{
at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
}
static struct resource uart2_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US2,
.end = AT91SAM9263_BASE_US2 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9263_ID_US2,
.end = AT91SAM9263_ID_US2,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static struct platform_device at91sam9263_uart2_device = {
.name = "atmel_usart",
.id = 3,
.dev = {
.platform_data = &uart2_data,
.coherent_dma_mask = 0xffffffff,
},
.resource = uart2_resources,
.num_resources = ARRAY_SIZE(uart2_resources),
};
static inline void configure_usart2_pins(void)
{
at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
}
struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
struct platform_device *atmel_default_console_device; /* the serial console device */
void __init at91_init_serial(struct at91_uart_config *config)
{
int i;
/* Fill in list of supported UARTs */
for (i = 0; i < config->nr_tty; i++) {
switch (config->tty_map[i]) {
case 0:
configure_usart0_pins();
at91_uarts[i] = &at91sam9263_uart0_device;
at91_clock_associate("usart0_clk", &at91sam9263_uart0_device.dev, "usart");
break;
case 1:
configure_usart1_pins();
at91_uarts[i] = &at91sam9263_uart1_device;
at91_clock_associate("usart1_clk", &at91sam9263_uart1_device.dev, "usart");
break;
case 2:
configure_usart2_pins();
at91_uarts[i] = &at91sam9263_uart2_device;
at91_clock_associate("usart2_clk", &at91sam9263_uart2_device.dev, "usart");
break;
case 3:
configure_dbgu_pins();
at91_uarts[i] = &at91sam9263_dbgu_device;
at91_clock_associate("mck", &at91sam9263_dbgu_device.dev, "usart");
break;
default:
continue;
}
at91_uarts[i]->id = i; /* update ID number to mapped ID */
}
/* Set serial console device */
if (config->console_tty < ATMEL_MAX_UART)
atmel_default_console_device = at91_uarts[config->console_tty];
if (!atmel_default_console_device)
printk(KERN_INFO "AT91: No default serial console defined.\n");
}
void __init at91_add_device_serial(void)
{
int i;
for (i = 0; i < ATMEL_MAX_UART; i++) {
if (at91_uarts[i])
platform_device_register(at91_uarts[i]);
}
}
#else
void __init at91_init_serial(struct at91_uart_config *config) {}
void __init at91_add_device_serial(void) {}
#endif
/* -------------------------------------------------------------------- */
/*
* These devices are always present and don't need any board-specific
* setup.
*/
static int __init at91_add_standard_devices(void)
{
return 0;
}
arch_initcall(at91_add_standard_devices);
