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linux_dsm_epyc7002/arch/arm/mach-at91/at91sam9260_devices.c
Jamie Iles 84e0cdb0a2 macb: unify at91 and avr32 platform data 
Both at91 and avr32 defines its own platform data structure for
the macb driver and both share common structures though at91
includes a currently unused phy_irq_pin.  Create a common
macb_platform_data for macb that both at91 and avr32 can use.  In
future we can use this to support other architectures that use the
same IP block with the macb driver.

v2: rename eth_platform_data to macb_platform_data and allow at91_ether
to share the platform data with macb.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2011-11-22 15:21:16 +00:00

1336 lines
32 KiB
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/*
* arch/arm/mach-at91/at91sam9260_devices.c
*
* Copyright (C) 2006 Atmel
*
* 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/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/i2c-gpio.h>
#include <mach/board.h>
#include <mach/cpu.h>
#include <mach/at91sam9260.h>
#include <mach/at91sam9260_matrix.h>
#include <mach/at91sam9_smc.h>
#include "generic.h"
/* --------------------------------------------------------------------
* USB Host
* -------------------------------------------------------------------- */
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static u64 ohci_dmamask = DMA_BIT_MASK(32);
static struct at91_usbh_data usbh_data;
static struct resource usbh_resources[] = {
[0] = {
.start = AT91SAM9260_UHP_BASE,
.end = AT91SAM9260_UHP_BASE + SZ_1M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_UHP,
.end = AT91SAM9260_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 = DMA_BIT_MASK(32),
.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 overcurrent notification */
for (i = 0; i < data->ports; i++) {
if (data->overcurrent_pin[i])
at91_set_gpio_input(data->overcurrent_pin[i], 1);
}
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 = AT91SAM9260_BASE_UDP,
.end = AT91SAM9260_BASE_UDP + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_UDP,
.end = AT91SAM9260_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 = DMA_BIT_MASK(32);
static struct macb_platform_data eth_data;
static struct resource eth_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_EMAC,
.end = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_EMAC,
.end = AT91SAM9260_ID_EMAC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_eth_device = {
.name = "macb",
.id = -1,
.dev = {
.dma_mask = &eth_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &eth_data,
},
.resource = eth_resources,
.num_resources = ARRAY_SIZE(eth_resources),
};
void __init at91_add_device_eth(struct macb_platform_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_PA19, 0); /* ETXCK_EREFCK */
at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */
at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */
at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */
at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */
at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */
at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */
at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */
at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */
at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */
if (!data->is_rmii) {
at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */
at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */
at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */
at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */
at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */
at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */
at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */
}
eth_data = *data;
platform_device_register(&at91sam9260_eth_device);
}
#else
void __init at91_add_device_eth(struct macb_platform_data *data) {}
#endif
/* --------------------------------------------------------------------
* MMC / SD
* -------------------------------------------------------------------- */
#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
static u64 mmc_dmamask = DMA_BIT_MASK(32);
static struct at91_mmc_data mmc_data;
static struct resource mmc_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_MCI,
.end = AT91SAM9260_BASE_MCI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_MCI,
.end = AT91SAM9260_ID_MCI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_mmc_device = {
.name = "at91_mci",
.id = -1,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &mmc_data,
},
.resource = mmc_resources,
.num_resources = ARRAY_SIZE(mmc_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);
/* CLK */
at91_set_A_periph(AT91_PIN_PA8, 0);
if (data->slot_b) {
/* CMD */
at91_set_B_periph(AT91_PIN_PA1, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_B_periph(AT91_PIN_PA0, 1);
if (data->wire4) {
at91_set_B_periph(AT91_PIN_PA5, 1);
at91_set_B_periph(AT91_PIN_PA4, 1);
at91_set_B_periph(AT91_PIN_PA3, 1);
}
} else {
/* CMD */
at91_set_A_periph(AT91_PIN_PA7, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA6, 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);
}
}
mmc_data = *data;
platform_device_register(&at91sam9260_mmc_device);
}
#else
void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
#endif
/* --------------------------------------------------------------------
* MMC / SD Slot for Atmel MCI Driver
* -------------------------------------------------------------------- */
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
static u64 mmc_dmamask = DMA_BIT_MASK(32);
static struct mci_platform_data mmc_data;
static struct resource mmc_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_MCI,
.end = AT91SAM9260_BASE_MCI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_MCI,
.end = AT91SAM9260_ID_MCI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_mmc_device = {
.name = "atmel_mci",
.id = -1,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &mmc_data,
},
.resource = mmc_resources,
.num_resources = ARRAY_SIZE(mmc_resources),
};
void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
{
unsigned int i;
unsigned int slot_count = 0;
if (!data)
return;
for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (data->slot[i].bus_width) {
/* input/irq */
if (data->slot[i].detect_pin) {
at91_set_gpio_input(data->slot[i].detect_pin, 1);
at91_set_deglitch(data->slot[i].detect_pin, 1);
}
if (data->slot[i].wp_pin)
at91_set_gpio_input(data->slot[i].wp_pin, 1);
switch (i) {
case 0:
/* CMD */
at91_set_A_periph(AT91_PIN_PA7, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA6, 1);
if (data->slot[i].bus_width == 4) {
at91_set_A_periph(AT91_PIN_PA9, 1);
at91_set_A_periph(AT91_PIN_PA10, 1);
at91_set_A_periph(AT91_PIN_PA11, 1);
}
slot_count++;
break;
case 1:
/* CMD */
at91_set_B_periph(AT91_PIN_PA1, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_B_periph(AT91_PIN_PA0, 1);
if (data->slot[i].bus_width == 4) {
at91_set_B_periph(AT91_PIN_PA5, 1);
at91_set_B_periph(AT91_PIN_PA4, 1);
at91_set_B_periph(AT91_PIN_PA3, 1);
}
slot_count++;
break;
default:
printk(KERN_ERR
"AT91: SD/MMC slot %d not available\n", i);
break;
}
}
}
if (slot_count) {
/* CLK */
at91_set_A_periph(AT91_PIN_PA8, 0);
mmc_data = *data;
platform_device_register(&at91sam9260_mmc_device);
}
}
#else
void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
#endif
/* --------------------------------------------------------------------
* NAND / SmartMedia
* -------------------------------------------------------------------- */
#if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
static struct atmel_nand_data nand_data;
#define NAND_BASE AT91_CHIPSELECT_3
static struct resource nand_resources[] = {
[0] = {
.start = NAND_BASE,
.end = NAND_BASE + SZ_256M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9260_nand_device = {
.name = "atmel_nand",
.id = -1,
.dev = {
.platform_data = &nand_data,
},
.resource = nand_resources,
.num_resources = ARRAY_SIZE(nand_resources),
};
void __init at91_add_device_nand(struct atmel_nand_data *data)
{
unsigned long csa;
if (!data)
return;
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
/* 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(&at91sam9260_nand_device);
}
#else
void __init at91_add_device_nand(struct atmel_nand_data *data) {}
#endif
/* --------------------------------------------------------------------
* TWI (i2c)
* -------------------------------------------------------------------- */
/*
* Prefer the GPIO code since the TWI controller isn't robust
* (gets overruns and underruns under load) and can only issue
* repeated STARTs in one scenario (the driver doesn't yet handle them).
*/
#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
static struct i2c_gpio_platform_data pdata = {
.sda_pin = AT91_PIN_PA23,
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PA24,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
};
static struct platform_device at91sam9260_twi_device = {
.name = "i2c-gpio",
.id = -1,
.dev.platform_data = &pdata,
};
void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
{
at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
at91_set_multi_drive(AT91_PIN_PA23, 1);
at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
at91_set_multi_drive(AT91_PIN_PA24, 1);
i2c_register_board_info(0, devices, nr_devices);
platform_device_register(&at91sam9260_twi_device);
}
#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
static struct resource twi_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_TWI,
.end = AT91SAM9260_BASE_TWI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_TWI,
.end = AT91SAM9260_ID_TWI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_twi_device = {
.name = "at91_i2c",
.id = -1,
.resource = twi_resources,
.num_resources = ARRAY_SIZE(twi_resources),
};
void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
{
/* pins used for TWI interface */
at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
at91_set_multi_drive(AT91_PIN_PA23, 1);
at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
at91_set_multi_drive(AT91_PIN_PA24, 1);
i2c_register_board_info(0, devices, nr_devices);
platform_device_register(&at91sam9260_twi_device);
}
#else
void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
#endif
/* --------------------------------------------------------------------
* SPI
* -------------------------------------------------------------------- */
#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
static u64 spi_dmamask = DMA_BIT_MASK(32);
static struct resource spi0_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_SPI0,
.end = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_SPI0,
.end = AT91SAM9260_ID_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_spi0_device = {
.name = "atmel_spi",
.id = 0,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = spi0_resources,
.num_resources = ARRAY_SIZE(spi0_resources),
};
static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
static struct resource spi1_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_SPI1,
.end = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_SPI1,
.end = AT91SAM9260_ID_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_spi1_device = {
.name = "atmel_spi",
.id = 1,
.dev = {
.dma_mask = &spi_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = spi1_resources,
.num_resources = ARRAY_SIZE(spi1_resources),
};
static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
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_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI1_SPCK */
platform_device_register(&at91sam9260_spi0_device);
}
if (enable_spi1) {
at91_set_A_periph(AT91_PIN_PB0, 0); /* SPI1_MISO */
at91_set_A_periph(AT91_PIN_PB1, 0); /* SPI1_MOSI */
at91_set_A_periph(AT91_PIN_PB2, 0); /* SPI1_SPCK */
platform_device_register(&at91sam9260_spi1_device);
}
}
#else
void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
#endif
/* --------------------------------------------------------------------
* Timer/Counter blocks
* -------------------------------------------------------------------- */
#ifdef CONFIG_ATMEL_TCLIB
static struct resource tcb0_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_TCB0,
.end = AT91SAM9260_BASE_TCB0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_TC0,
.end = AT91SAM9260_ID_TC0,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = AT91SAM9260_ID_TC1,
.end = AT91SAM9260_ID_TC1,
.flags = IORESOURCE_IRQ,
},
[3] = {
.start = AT91SAM9260_ID_TC2,
.end = AT91SAM9260_ID_TC2,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_tcb0_device = {
.name = "atmel_tcb",
.id = 0,
.resource = tcb0_resources,
.num_resources = ARRAY_SIZE(tcb0_resources),
};
static struct resource tcb1_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_TCB1,
.end = AT91SAM9260_BASE_TCB1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_TC3,
.end = AT91SAM9260_ID_TC3,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = AT91SAM9260_ID_TC4,
.end = AT91SAM9260_ID_TC4,
.flags = IORESOURCE_IRQ,
},
[3] = {
.start = AT91SAM9260_ID_TC5,
.end = AT91SAM9260_ID_TC5,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_tcb1_device = {
.name = "atmel_tcb",
.id = 1,
.resource = tcb1_resources,
.num_resources = ARRAY_SIZE(tcb1_resources),
};
static void __init at91_add_device_tc(void)
{
platform_device_register(&at91sam9260_tcb0_device);
platform_device_register(&at91sam9260_tcb1_device);
}
#else
static void __init at91_add_device_tc(void) { }
#endif
/* --------------------------------------------------------------------
* RTT
* -------------------------------------------------------------------- */
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9260_rtt_device = {
.name = "at91_rtt",
.id = 0,
.resource = rtt_resources,
.num_resources = ARRAY_SIZE(rtt_resources),
};
static void __init at91_add_device_rtt(void)
{
platform_device_register(&at91sam9260_rtt_device);
}
/* --------------------------------------------------------------------
* Watchdog
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct platform_device at91sam9260_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
};
static void __init at91_add_device_watchdog(void)
{
platform_device_register(&at91sam9260_wdt_device);
}
#else
static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
static u64 ssc_dmamask = DMA_BIT_MASK(32);
static struct resource ssc_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_SSC,
.end = AT91SAM9260_BASE_SSC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_SSC,
.end = AT91SAM9260_ID_SSC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9260_ssc_device = {
.name = "ssc",
.id = 0,
.dev = {
.dma_mask = &ssc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = ssc_resources,
.num_resources = ARRAY_SIZE(ssc_resources),
};
static inline void configure_ssc_pins(unsigned pins)
{
if (pins & ATMEL_SSC_TF)
at91_set_A_periph(AT91_PIN_PB17, 1);
if (pins & ATMEL_SSC_TK)
at91_set_A_periph(AT91_PIN_PB16, 1);
if (pins & ATMEL_SSC_TD)
at91_set_A_periph(AT91_PIN_PB18, 1);
if (pins & ATMEL_SSC_RD)
at91_set_A_periph(AT91_PIN_PB19, 1);
if (pins & ATMEL_SSC_RK)
at91_set_A_periph(AT91_PIN_PB20, 1);
if (pins & ATMEL_SSC_RF)
at91_set_A_periph(AT91_PIN_PB21, 1);
}
/*
* SSC controllers are accessed through library code, instead of any
* kind of all-singing/all-dancing driver. For example one could be
* used by a particular I2S audio codec's driver, while another one
* on the same system might be used by a custom data capture driver.
*/
void __init at91_add_device_ssc(unsigned id, unsigned pins)
{
struct platform_device *pdev;
/*
* NOTE: caller is responsible for passing information matching
* "pins" to whatever will be using each particular controller.
*/
switch (id) {
case AT91SAM9260_ID_SSC:
pdev = &at91sam9260_ssc_device;
configure_ssc_pins(pins);
break;
default:
return;
}
platform_device_register(pdev);
}
#else
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#endif
/* --------------------------------------------------------------------
* UART
* -------------------------------------------------------------------- */
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_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 */
};
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_dbgu_device = {
.name = "atmel_usart",
.id = 0,
.dev = {
.dma_mask = &dbgu_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &dbgu_data,
},
.resource = dbgu_resources,
.num_resources = ARRAY_SIZE(dbgu_resources),
};
static inline void configure_dbgu_pins(void)
{
at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
}
static struct resource uart0_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US0,
.end = AT91SAM9260_BASE_US0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US0,
.end = AT91SAM9260_ID_US0,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart0_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart0_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart0_device = {
.name = "atmel_usart",
.id = 1,
.dev = {
.dma_mask = &uart0_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart0_data,
},
.resource = uart0_resources,
.num_resources = ARRAY_SIZE(uart0_resources),
};
static inline void configure_usart0_pins(unsigned pins)
{
at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
if (pins & ATMEL_UART_RTS)
at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */
if (pins & ATMEL_UART_CTS)
at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */
if (pins & ATMEL_UART_DTR)
at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */
if (pins & ATMEL_UART_DSR)
at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */
if (pins & ATMEL_UART_DCD)
at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */
if (pins & ATMEL_UART_RI)
at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */
}
static struct resource uart1_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US1,
.end = AT91SAM9260_BASE_US1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US1,
.end = AT91SAM9260_ID_US1,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart1_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart1_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart1_device = {
.name = "atmel_usart",
.id = 2,
.dev = {
.dma_mask = &uart1_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart1_data,
},
.resource = uart1_resources,
.num_resources = ARRAY_SIZE(uart1_resources),
};
static inline void configure_usart1_pins(unsigned pins)
{
at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
if (pins & ATMEL_UART_RTS)
at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */
if (pins & ATMEL_UART_CTS)
at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */
}
static struct resource uart2_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US2,
.end = AT91SAM9260_BASE_US2 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US2,
.end = AT91SAM9260_ID_US2,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart2_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart2_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart2_device = {
.name = "atmel_usart",
.id = 3,
.dev = {
.dma_mask = &uart2_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart2_data,
},
.resource = uart2_resources,
.num_resources = ARRAY_SIZE(uart2_resources),
};
static inline void configure_usart2_pins(unsigned pins)
{
at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
if (pins & ATMEL_UART_RTS)
at91_set_A_periph(AT91_PIN_PA4, 0); /* RTS2 */
if (pins & ATMEL_UART_CTS)
at91_set_A_periph(AT91_PIN_PA5, 0); /* CTS2 */
}
static struct resource uart3_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US3,
.end = AT91SAM9260_BASE_US3 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US3,
.end = AT91SAM9260_ID_US3,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart3_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart3_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart3_device = {
.name = "atmel_usart",
.id = 4,
.dev = {
.dma_mask = &uart3_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart3_data,
},
.resource = uart3_resources,
.num_resources = ARRAY_SIZE(uart3_resources),
};
static inline void configure_usart3_pins(unsigned pins)
{
at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */
at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */
if (pins & ATMEL_UART_RTS)
at91_set_B_periph(AT91_PIN_PC8, 0); /* RTS3 */
if (pins & ATMEL_UART_CTS)
at91_set_B_periph(AT91_PIN_PC10, 0); /* CTS3 */
}
static struct resource uart4_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US4,
.end = AT91SAM9260_BASE_US4 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US4,
.end = AT91SAM9260_ID_US4,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart4_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart4_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart4_device = {
.name = "atmel_usart",
.id = 5,
.dev = {
.dma_mask = &uart4_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart4_data,
},
.resource = uart4_resources,
.num_resources = ARRAY_SIZE(uart4_resources),
};
static inline void configure_usart4_pins(void)
{
at91_set_B_periph(AT91_PIN_PA31, 1); /* TXD4 */
at91_set_B_periph(AT91_PIN_PA30, 0); /* RXD4 */
}
static struct resource uart5_resources[] = {
[0] = {
.start = AT91SAM9260_BASE_US5,
.end = AT91SAM9260_BASE_US5 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91SAM9260_ID_US5,
.end = AT91SAM9260_ID_US5,
.flags = IORESOURCE_IRQ,
},
};
static struct atmel_uart_data uart5_data = {
.use_dma_tx = 1,
.use_dma_rx = 1,
};
static u64 uart5_dmamask = DMA_BIT_MASK(32);
static struct platform_device at91sam9260_uart5_device = {
.name = "atmel_usart",
.id = 6,
.dev = {
.dma_mask = &uart5_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &uart5_data,
},
.resource = uart5_resources,
.num_resources = ARRAY_SIZE(uart5_resources),
};
static inline void configure_usart5_pins(void)
{
at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */
at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */
}
static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
struct platform_device *atmel_default_console_device; /* the serial console device */
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
{
struct platform_device *pdev;
struct atmel_uart_data *pdata;
switch (id) {
case 0: /* DBGU */
pdev = &at91sam9260_dbgu_device;
configure_dbgu_pins();
break;
case AT91SAM9260_ID_US0:
pdev = &at91sam9260_uart0_device;
configure_usart0_pins(pins);
break;
case AT91SAM9260_ID_US1:
pdev = &at91sam9260_uart1_device;
configure_usart1_pins(pins);
break;
case AT91SAM9260_ID_US2:
pdev = &at91sam9260_uart2_device;
configure_usart2_pins(pins);
break;
case AT91SAM9260_ID_US3:
pdev = &at91sam9260_uart3_device;
configure_usart3_pins(pins);
break;
case AT91SAM9260_ID_US4:
pdev = &at91sam9260_uart4_device;
configure_usart4_pins();
break;
case AT91SAM9260_ID_US5:
pdev = &at91sam9260_uart5_device;
configure_usart5_pins();
break;
default:
return;
}
pdata = pdev->dev.platform_data;
pdata->num = portnr; /* update to mapped ID */
if (portnr < ATMEL_MAX_UART)
at91_uarts[portnr] = pdev;
}
void __init at91_set_serial_console(unsigned portnr)
{
if (portnr < ATMEL_MAX_UART) {
atmel_default_console_device = at91_uarts[portnr];
at91sam9260_set_console_clock(at91_uarts[portnr]->id);
}
}
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]);
}
if (!atmel_default_console_device)
printk(KERN_INFO "AT91: No default serial console defined.\n");
}
#else
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
void __init at91_set_serial_console(unsigned portnr) {}
void __init at91_add_device_serial(void) {}
#endif
/* --------------------------------------------------------------------
* CF/IDE
* -------------------------------------------------------------------- */
#if defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE) || \
defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
static struct at91_cf_data cf0_data;
static struct resource cf0_resources[] = {
[0] = {
.start = AT91_CHIPSELECT_4,
.end = AT91_CHIPSELECT_4 + SZ_256M - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device cf0_device = {
.id = 0,
.dev = {
.platform_data = &cf0_data,
},
.resource = cf0_resources,
.num_resources = ARRAY_SIZE(cf0_resources),
};
static struct at91_cf_data cf1_data;
static struct resource cf1_resources[] = {
[0] = {
.start = AT91_CHIPSELECT_5,
.end = AT91_CHIPSELECT_5 + SZ_256M - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device cf1_device = {
.id = 1,
.dev = {
.platform_data = &cf1_data,
},
.resource = cf1_resources,
.num_resources = ARRAY_SIZE(cf1_resources),
};
void __init at91_add_device_cf(struct at91_cf_data *data)
{
struct platform_device *pdev;
unsigned long csa;
if (!data)
return;
csa = at91_sys_read(AT91_MATRIX_EBICSA);
switch (data->chipselect) {
case 4:
at91_set_multi_drive(AT91_PIN_PC8, 0);
at91_set_A_periph(AT91_PIN_PC8, 0);
csa |= AT91_MATRIX_CS4A_SMC_CF1;
cf0_data = *data;
pdev = &cf0_device;
break;
case 5:
at91_set_multi_drive(AT91_PIN_PC9, 0);
at91_set_A_periph(AT91_PIN_PC9, 0);
csa |= AT91_MATRIX_CS5A_SMC_CF2;
cf1_data = *data;
pdev = &cf1_device;
break;
default:
printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
data->chipselect);
return;
}
at91_sys_write(AT91_MATRIX_EBICSA, csa);
if (data->rst_pin) {
at91_set_multi_drive(data->rst_pin, 0);
at91_set_gpio_output(data->rst_pin, 1);
}
if (data->irq_pin) {
at91_set_gpio_input(data->irq_pin, 0);
at91_set_deglitch(data->irq_pin, 1);
}
if (data->det_pin) {
at91_set_gpio_input(data->det_pin, 0);
at91_set_deglitch(data->det_pin, 1);
}
at91_set_B_periph(AT91_PIN_PC6, 0); /* CFCE1 */
at91_set_B_periph(AT91_PIN_PC7, 0); /* CFCE2 */
at91_set_A_periph(AT91_PIN_PC10, 0); /* CFRNW */
at91_set_A_periph(AT91_PIN_PC15, 1); /* NWAIT */
if (data->flags & AT91_CF_TRUE_IDE)
#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
pdev->name = "pata_at91";
#elif defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
pdev->name = "at91_ide";
#else
#warning "board requires AT91_CF_TRUE_IDE: enable either at91_ide or pata_at91"
#endif
else
pdev->name = "at91_cf";
platform_device_register(pdev);
}
#else
void __init at91_add_device_cf(struct at91_cf_data * data) {}
#endif
/* -------------------------------------------------------------------- */
/*
* These devices are always present and don't need any board-specific
* setup.
*/
static int __init at91_add_standard_devices(void)
{
at91_add_device_rtt();
at91_add_device_watchdog();
at91_add_device_tc();
return 0;
}
arch_initcall(at91_add_standard_devices);
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