7c8cf66529
This is patch 2 of 2 adding support for the USB High Speed Device Port on the AT91CAP9 system on chip. The AT91CAP9 uses the same UDPHS IP as the AVR32 and the AT91SAM9RL. This patch declares the UDPHS ressources in the at91cap9 (cpu and adk board) files, wires up the atmel_usba_udc driver to them, and activates the driver in the defconfig. Signed-off-by: Stelian Pop <stelian@popies.net> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1220 lines
31 KiB
C
1220 lines
31 KiB
C
/*
|
|
* arch/arm/mach-at91/at91cap9_devices.c
|
|
*
|
|
* Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
|
|
* Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
|
|
* 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/dma-mapping.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/i2c-gpio.h>
|
|
|
|
#include <video/atmel_lcdc.h>
|
|
|
|
#include <asm/arch/board.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch/at91cap9.h>
|
|
#include <asm/arch/at91cap9_matrix.h>
|
|
#include <asm/arch/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 = AT91CAP9_UHP_BASE,
|
|
.end = AT91CAP9_UHP_BASE + SZ_1M - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_UHP,
|
|
.end = AT91CAP9_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 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 HS Device (Gadget)
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
|
|
|
|
static struct resource usba_udc_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_UDPHS_FIFO,
|
|
.end = AT91CAP9_UDPHS_FIFO + SZ_512K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_BASE_UDPHS,
|
|
.end = AT91CAP9_BASE_UDPHS + SZ_1K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[2] = {
|
|
.start = AT91CAP9_ID_UDPHS,
|
|
.end = AT91CAP9_ID_UDPHS,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
#define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
|
|
[idx] = { \
|
|
.name = nam, \
|
|
.index = idx, \
|
|
.fifo_size = maxpkt, \
|
|
.nr_banks = maxbk, \
|
|
.can_dma = dma, \
|
|
.can_isoc = isoc, \
|
|
}
|
|
|
|
static struct usba_ep_data usba_udc_ep[] = {
|
|
EP("ep0", 0, 64, 1, 0, 0),
|
|
EP("ep1", 1, 1024, 3, 1, 1),
|
|
EP("ep2", 2, 1024, 3, 1, 1),
|
|
EP("ep3", 3, 1024, 2, 1, 1),
|
|
EP("ep4", 4, 1024, 2, 1, 1),
|
|
EP("ep5", 5, 1024, 2, 1, 0),
|
|
EP("ep6", 6, 1024, 2, 1, 0),
|
|
EP("ep7", 7, 1024, 2, 0, 0),
|
|
};
|
|
|
|
#undef EP
|
|
|
|
/*
|
|
* pdata doesn't have room for any endpoints, so we need to
|
|
* append room for the ones we need right after it.
|
|
*/
|
|
static struct {
|
|
struct usba_platform_data pdata;
|
|
struct usba_ep_data ep[8];
|
|
} usba_udc_data;
|
|
|
|
static struct platform_device at91_usba_udc_device = {
|
|
.name = "atmel_usba_udc",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &usba_udc_data.pdata,
|
|
},
|
|
.resource = usba_udc_resources,
|
|
.num_resources = ARRAY_SIZE(usba_udc_resources),
|
|
};
|
|
|
|
void __init at91_add_device_usba(struct usba_platform_data *data)
|
|
{
|
|
at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS |
|
|
AT91_MATRIX_UDPHS_BYPASS_LOCK);
|
|
|
|
/*
|
|
* Invalid pins are 0 on AT91, but the usba driver is shared
|
|
* with AVR32, which use negative values instead. Once/if
|
|
* gpio_is_valid() is ported to AT91, revisit this code.
|
|
*/
|
|
usba_udc_data.pdata.vbus_pin = -EINVAL;
|
|
usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
|
|
memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));;
|
|
|
|
if (data && data->vbus_pin > 0) {
|
|
at91_set_gpio_input(data->vbus_pin, 0);
|
|
at91_set_deglitch(data->vbus_pin, 1);
|
|
usba_udc_data.pdata.vbus_pin = data->vbus_pin;
|
|
}
|
|
|
|
/* Pullup pin is handled internally by USB device peripheral */
|
|
|
|
/* Clocks */
|
|
at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk");
|
|
at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk");
|
|
|
|
platform_device_register(&at91_usba_udc_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_usba(struct usba_platform_data *data) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Ethernet
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
|
|
static u64 eth_dmamask = DMA_BIT_MASK(32);
|
|
static struct at91_eth_data eth_data;
|
|
|
|
static struct resource eth_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_EMAC,
|
|
.end = AT91CAP9_BASE_EMAC + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_EMAC,
|
|
.end = AT91CAP9_ID_EMAC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_eth_device = {
|
|
.name = "macb",
|
|
.id = -1,
|
|
.dev = {
|
|
.dma_mask = ð_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.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_PB21, 0); /* ETXCK_EREFCK */
|
|
at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
|
|
at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
|
|
at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
|
|
at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
|
|
at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
|
|
at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
|
|
at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
|
|
at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
|
|
at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
|
|
|
|
if (!data->is_rmii) {
|
|
at91_set_B_periph(AT91_PIN_PC25, 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(&at91cap9_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 = DMA_BIT_MASK(32);
|
|
static struct at91_mmc_data mmc0_data, mmc1_data;
|
|
|
|
static struct resource mmc0_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_MCI0,
|
|
.end = AT91CAP9_BASE_MCI0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_MCI0,
|
|
.end = AT91CAP9_ID_MCI0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_mmc0_device = {
|
|
.name = "at91_mci",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &mmc_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &mmc0_data,
|
|
},
|
|
.resource = mmc0_resources,
|
|
.num_resources = ARRAY_SIZE(mmc0_resources),
|
|
};
|
|
|
|
static struct resource mmc1_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_MCI1,
|
|
.end = AT91CAP9_BASE_MCI1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_MCI1,
|
|
.end = AT91CAP9_ID_MCI1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_mmc1_device = {
|
|
.name = "at91_mci",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &mmc_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.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_PA2, 0);
|
|
|
|
/* 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", &at91cap9_mmc0_device.dev, "mci_clk");
|
|
platform_device_register(&at91cap9_mmc0_device);
|
|
} else { /* MCI1 */
|
|
/* CLK */
|
|
at91_set_A_periph(AT91_PIN_PA16, 0);
|
|
|
|
/* CMD */
|
|
at91_set_A_periph(AT91_PIN_PA17, 1);
|
|
|
|
/* DAT0, maybe DAT1..DAT3 */
|
|
at91_set_A_periph(AT91_PIN_PA18, 1);
|
|
if (data->wire4) {
|
|
at91_set_A_periph(AT91_PIN_PA19, 1);
|
|
at91_set_A_periph(AT91_PIN_PA20, 1);
|
|
at91_set_A_periph(AT91_PIN_PA21, 1);
|
|
}
|
|
|
|
mmc1_data = *data;
|
|
at91_clock_associate("mci1_clk", &at91cap9_mmc1_device.dev, "mci_clk");
|
|
platform_device_register(&at91cap9_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[] = {
|
|
[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 at91cap9_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_EBICSA);
|
|
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
|
|
|
|
/* set the bus interface characteristics */
|
|
at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1)
|
|
| AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
|
|
|
|
at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6)
|
|
| AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
|
|
|
|
at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
|
|
|
|
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_(1));
|
|
|
|
/* 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(&at91cap9_nand_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_nand(struct at91_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_PB4,
|
|
.sda_is_open_drain = 1,
|
|
.scl_pin = AT91_PIN_PB5,
|
|
.scl_is_open_drain = 1,
|
|
.udelay = 2, /* ~100 kHz */
|
|
};
|
|
|
|
static struct platform_device at91cap9_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_PB4, 1); /* TWD (SDA) */
|
|
at91_set_multi_drive(AT91_PIN_PB4, 1);
|
|
|
|
at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
|
|
at91_set_multi_drive(AT91_PIN_PB5, 1);
|
|
|
|
i2c_register_board_info(0, devices, nr_devices);
|
|
platform_device_register(&at91cap9_twi_device);
|
|
}
|
|
|
|
#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
|
|
|
|
static struct resource twi_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_TWI,
|
|
.end = AT91CAP9_BASE_TWI + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_TWI,
|
|
.end = AT91CAP9_ID_TWI,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_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_B_periph(AT91_PIN_PB4, 0); /* TWD */
|
|
at91_set_multi_drive(AT91_PIN_PB4, 1);
|
|
|
|
at91_set_B_periph(AT91_PIN_PB5, 0); /* TWCK */
|
|
at91_set_multi_drive(AT91_PIN_PB5, 1);
|
|
|
|
i2c_register_board_info(0, devices, nr_devices);
|
|
platform_device_register(&at91cap9_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 = AT91CAP9_BASE_SPI0,
|
|
.end = AT91CAP9_BASE_SPI0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_SPI0,
|
|
.end = AT91CAP9_ID_SPI0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_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_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 };
|
|
|
|
static struct resource spi1_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_SPI1,
|
|
.end = AT91CAP9_BASE_SPI1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_SPI1,
|
|
.end = AT91CAP9_ID_SPI1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_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_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", &at91cap9_spi0_device.dev, "spi_clk");
|
|
platform_device_register(&at91cap9_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", &at91cap9_spi1_device.dev, "spi_clk");
|
|
platform_device_register(&at91cap9_spi1_device);
|
|
}
|
|
}
|
|
#else
|
|
void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Timer/Counter block
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#ifdef CONFIG_ATMEL_TCLIB
|
|
|
|
static struct resource tcb_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_TCB0,
|
|
.end = AT91CAP9_BASE_TCB0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_TCB,
|
|
.end = AT91CAP9_ID_TCB,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_tcb_device = {
|
|
.name = "atmel_tcb",
|
|
.id = 0,
|
|
.resource = tcb_resources,
|
|
.num_resources = ARRAY_SIZE(tcb_resources),
|
|
};
|
|
|
|
static void __init at91_add_device_tc(void)
|
|
{
|
|
/* this chip has one clock and irq for all three TC channels */
|
|
at91_clock_associate("tcb_clk", &at91cap9_tcb_device.dev, "t0_clk");
|
|
platform_device_register(&at91cap9_tcb_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 at91cap9_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(&at91cap9_rtt_device);
|
|
}
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Watchdog
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
|
|
static struct platform_device at91cap9_wdt_device = {
|
|
.name = "at91_wdt",
|
|
.id = -1,
|
|
.num_resources = 0,
|
|
};
|
|
|
|
static void __init at91_add_device_watchdog(void)
|
|
{
|
|
platform_device_register(&at91cap9_wdt_device);
|
|
}
|
|
#else
|
|
static void __init at91_add_device_watchdog(void) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* AC97
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
|
|
static u64 ac97_dmamask = DMA_BIT_MASK(32);
|
|
static struct atmel_ac97_data ac97_data;
|
|
|
|
static struct resource ac97_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_AC97C,
|
|
.end = AT91CAP9_BASE_AC97C + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_AC97C,
|
|
.end = AT91CAP9_ID_AC97C,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_ac97_device = {
|
|
.name = "ac97c",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &ac97_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.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_PA6, 0); /* AC97FS */
|
|
at91_set_A_periph(AT91_PIN_PA7, 0); /* AC97CK */
|
|
at91_set_A_periph(AT91_PIN_PA8, 0); /* AC97TX */
|
|
at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */
|
|
|
|
/* reset */
|
|
if (data->reset_pin)
|
|
at91_set_gpio_output(data->reset_pin, 0);
|
|
|
|
ac97_data = *data;
|
|
platform_device_register(&at91cap9_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 = DMA_BIT_MASK(32);
|
|
static struct atmel_lcdfb_info lcdc_data;
|
|
|
|
static struct resource lcdc_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_LCDC_BASE,
|
|
.end = AT91CAP9_LCDC_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_LCDC,
|
|
.end = AT91CAP9_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 = DMA_BIT_MASK(32),
|
|
.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_A_periph(AT91_PIN_PC17, 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_A_periph(AT91_PIN_PC25, 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
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* SSC -- Synchronous Serial Controller
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
|
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource ssc0_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_SSC0,
|
|
.end = AT91CAP9_BASE_SSC0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_SSC0,
|
|
.end = AT91CAP9_ID_SSC0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_ssc0_device = {
|
|
.name = "ssc",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &ssc0_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.resource = ssc0_resources,
|
|
.num_resources = ARRAY_SIZE(ssc0_resources),
|
|
};
|
|
|
|
static inline void configure_ssc0_pins(unsigned pins)
|
|
{
|
|
if (pins & ATMEL_SSC_TF)
|
|
at91_set_A_periph(AT91_PIN_PB0, 1);
|
|
if (pins & ATMEL_SSC_TK)
|
|
at91_set_A_periph(AT91_PIN_PB1, 1);
|
|
if (pins & ATMEL_SSC_TD)
|
|
at91_set_A_periph(AT91_PIN_PB2, 1);
|
|
if (pins & ATMEL_SSC_RD)
|
|
at91_set_A_periph(AT91_PIN_PB3, 1);
|
|
if (pins & ATMEL_SSC_RK)
|
|
at91_set_A_periph(AT91_PIN_PB4, 1);
|
|
if (pins & ATMEL_SSC_RF)
|
|
at91_set_A_periph(AT91_PIN_PB5, 1);
|
|
}
|
|
|
|
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource ssc1_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_SSC1,
|
|
.end = AT91CAP9_BASE_SSC1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_SSC1,
|
|
.end = AT91CAP9_ID_SSC1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91cap9_ssc1_device = {
|
|
.name = "ssc",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &ssc1_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.resource = ssc1_resources,
|
|
.num_resources = ARRAY_SIZE(ssc1_resources),
|
|
};
|
|
|
|
static inline void configure_ssc1_pins(unsigned pins)
|
|
{
|
|
if (pins & ATMEL_SSC_TF)
|
|
at91_set_A_periph(AT91_PIN_PB6, 1);
|
|
if (pins & ATMEL_SSC_TK)
|
|
at91_set_A_periph(AT91_PIN_PB7, 1);
|
|
if (pins & ATMEL_SSC_TD)
|
|
at91_set_A_periph(AT91_PIN_PB8, 1);
|
|
if (pins & ATMEL_SSC_RD)
|
|
at91_set_A_periph(AT91_PIN_PB9, 1);
|
|
if (pins & ATMEL_SSC_RK)
|
|
at91_set_A_periph(AT91_PIN_PB10, 1);
|
|
if (pins & ATMEL_SSC_RF)
|
|
at91_set_A_periph(AT91_PIN_PB11, 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 AT91CAP9_ID_SSC0:
|
|
pdev = &at91cap9_ssc0_device;
|
|
configure_ssc0_pins(pins);
|
|
at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
|
|
break;
|
|
case AT91CAP9_ID_SSC1:
|
|
pdev = &at91cap9_ssc1_device;
|
|
configure_ssc1_pins(pins);
|
|
at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
|
|
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_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 u64 dbgu_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91cap9_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_PC30, 0); /* DRXD */
|
|
at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
|
|
}
|
|
|
|
static struct resource uart0_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_US0,
|
|
.end = AT91CAP9_BASE_US0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_US0,
|
|
.end = AT91CAP9_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 at91cap9_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_PA22, 1); /* TXD0 */
|
|
at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_A_periph(AT91_PIN_PA24, 0); /* RTS0 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_A_periph(AT91_PIN_PA25, 0); /* CTS0 */
|
|
}
|
|
|
|
static struct resource uart1_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_US1,
|
|
.end = AT91CAP9_BASE_US1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_US1,
|
|
.end = AT91CAP9_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 at91cap9_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_PD0, 1); /* TXD1 */
|
|
at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
|
|
}
|
|
|
|
static struct resource uart2_resources[] = {
|
|
[0] = {
|
|
.start = AT91CAP9_BASE_US2,
|
|
.end = AT91CAP9_BASE_US2 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = AT91CAP9_ID_US2,
|
|
.end = AT91CAP9_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 at91cap9_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_PD2, 1); /* TXD2 */
|
|
at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
|
|
}
|
|
|
|
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;
|
|
|
|
switch (id) {
|
|
case 0: /* DBGU */
|
|
pdev = &at91cap9_dbgu_device;
|
|
configure_dbgu_pins();
|
|
at91_clock_associate("mck", &pdev->dev, "usart");
|
|
break;
|
|
case AT91CAP9_ID_US0:
|
|
pdev = &at91cap9_uart0_device;
|
|
configure_usart0_pins(pins);
|
|
at91_clock_associate("usart0_clk", &pdev->dev, "usart");
|
|
break;
|
|
case AT91CAP9_ID_US1:
|
|
pdev = &at91cap9_uart1_device;
|
|
configure_usart1_pins(pins);
|
|
at91_clock_associate("usart1_clk", &pdev->dev, "usart");
|
|
break;
|
|
case AT91CAP9_ID_US2:
|
|
pdev = &at91cap9_uart2_device;
|
|
configure_usart2_pins(pins);
|
|
at91_clock_associate("usart2_clk", &pdev->dev, "usart");
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
pdev->id = 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];
|
|
}
|
|
|
|
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
|
|
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/*
|
|
* 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);
|