/*
* 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 <common.h>
#include <sizes.h>
#include <asm/armlinux.h>
#include <asm/hardware.h>
#include <mach/board.h>
#include <mach/at91_pmc.h>
#include <mach/at91sam9260_matrix.h>
#include <mach/gpio.h>
#include <mach/io.h>
#include <mach/cpu.h>
#include "generic.h"
void at91_add_device_sdram(u32 size)
{
arm_add_mem_device("ram0", AT91_CHIPSELECT_1, size);
if (cpu_is_at91sam9g20()) {
add_mem_device("sram0", AT91SAM9G20_SRAM_BASE,
AT91SAM9G20_SRAM_SIZE, IORESOURCE_MEM_WRITEABLE);
} else {
add_mem_device("sram0", AT91SAM9260_SRAM_BASE,
AT91SAM9260_SRAM_SIZE, IORESOURCE_MEM_WRITEABLE);
}
}
#if defined(CONFIG_USB_OHCI)
void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
{
if (!data)
return;
add_generic_device("at91_ohci", -1, NULL, AT91SAM9260_UHP_BASE, 1024 * 1024,
IORESOURCE_MEM, data);
}
#else
void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) {}
#endif
/* --------------------------------------------------------------------
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_GADGET_DRIVER_AT91
void __init at91_add_device_udc(struct at91_udc_data *data)
{
if (data->vbus_pin > 0) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
add_generic_device("at91_udc", -1, NULL, AT91SAM9260_BASE_UDP, SZ_16K,
IORESOURCE_MEM, data);
}
#else
void __init at91_add_device_udc(struct at91_udc_data *data) {}
#endif
#if defined(CONFIG_DRIVER_NET_MACB)
void at91_add_device_eth(struct at91_ether_platform_data *data)
{
if (!data)
return;
/* 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->flags & AT91SAM_ETHER_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 */
if (data->flags & AT91SAM_ETX2_ETX3_ALTERNATIVE) {
at91_set_B_periph(AT91_PIN_PA10, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PA11, 0); /* ETX3 */
} else {
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 */
}
add_generic_device("macb", 0, NULL, AT91SAM9260_BASE_EMAC, 0x1000,
IORESOURCE_MEM, data);
}
#else
void at91_add_device_eth(struct at91_ether_platform_data *data) {}
#endif
#if defined(CONFIG_NAND_ATMEL)
static struct resource nand_resources[] = {
[0] = {
.start = AT91_CHIPSELECT_3,
.size = SZ_256M,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.size = 512,
.flags = IORESOURCE_MEM,
}
};
void 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);
add_generic_device_res("atmel_nand", 0, nand_resources,
ARRAY_SIZE(nand_resources), data);
}
#else
void at91_add_device_nand(struct atmel_nand_data *data) {}
#endif
/* --------------------------------------------------------------------
* SPI
* -------------------------------------------------------------------- */
#if defined(CONFIG_DRIVER_SPI_ATMEL)
static int spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
static int spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
static struct at91_spi_platform_data spi_pdata[] = {
[0] = {
.chipselect = spi0_standard_cs,
.num_chipselect = ARRAY_SIZE(spi0_standard_cs),
},
[1] = {
.chipselect = spi1_standard_cs,
.num_chipselect = ARRAY_SIZE(spi1_standard_cs),
},
};
void __init at91_add_device_spi(int spi_id, struct at91_spi_platform_data *pdata)
{
int i;
int cs_pin;
resource_size_t start = ~0;
BUG_ON(spi_id > 1);
if (!pdata)
pdata = &spi_pdata[spi_id];
for (i = 0; i < pdata->num_chipselect; i++) {
cs_pin = pdata->chipselect[i];
/* enable chip-select pin */
if (cs_pin > 0)
at91_set_gpio_output(cs_pin, 1);
}
/* Configure SPI bus(es) */
switch (spi_id) {
case 0:
start = AT91SAM9260_BASE_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 */
break;
case 1:
start = AT91SAM9260_BASE_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 */
break;
}
add_generic_device("atmel_spi", spi_id, NULL, start, SZ_16K,
IORESOURCE_MEM, pdata);
}
#else
void __init at91_add_device_spi(int spi_id, struct at91_spi_platform_data *pdata) {}
#endif
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 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 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 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 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 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 inline void configure_usart5_pins(void)
{
at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */
at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */
}
void at91_register_uart(unsigned id, unsigned pins)
{
resource_size_t start;
switch (id) {
case 0: /* DBGU */
configure_dbgu_pins();
start = AT91_BASE_SYS + AT91_DBGU;
id = 0;
break;
case AT91SAM9260_ID_US0:
configure_usart0_pins(pins);
start = AT91SAM9260_BASE_US0;
id = 1;
break;
case AT91SAM9260_ID_US1:
configure_usart1_pins(pins);
start = AT91SAM9260_BASE_US1;
id = 2;
break;
case AT91SAM9260_ID_US2:
configure_usart2_pins(pins);
start = AT91SAM9260_BASE_US2;
id = 3;
break;
case AT91SAM9260_ID_US3:
configure_usart3_pins(pins);
start = AT91SAM9260_BASE_US3;
id = 4;
break;
case AT91SAM9260_ID_US4:
configure_usart4_pins();
start = AT91SAM9260_BASE_US4;
id = 5;
break;
case AT91SAM9260_ID_US5:
configure_usart5_pins();
start = AT91SAM9260_BASE_US5;
id = 6;
break;
default:
return;
}
add_generic_device("atmel_usart", id, NULL, start, 4096,
IORESOURCE_MEM, NULL);
}
#if defined(CONFIG_MCI_ATMEL)
/* Consider only one slot : slot 0 */
void at91_add_device_mci(short mmc_id, struct atmel_mci_platform_data *data)
{
struct device_d *dev;
if (!data)
return;
/* need bus_width */
if (!data->bus_width)
return;
/* input/irq */
if (data->detect_pin) {
at91_set_gpio_input(data->detect_pin, 1);
at91_set_deglitch(data->detect_pin, 1);
}
if (data->wp_pin)
at91_set_gpio_input(data->wp_pin, 1);
/* 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->bus_width == 4) {
at91_set_B_periph(AT91_PIN_PA3, 1);
at91_set_B_periph(AT91_PIN_PA4, 1);
at91_set_B_periph(AT91_PIN_PA5, 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->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);
}
}
dev = add_generic_device("atmel_mci", mmc_id, NULL, AT91SAM9260_BASE_MCI, SZ_16K,
IORESOURCE_MEM, data);
}
#else
void at91_add_device_mci(short mmc_id, struct atmel_mci_platform_data *data) {}
#endif
