163 lines
3.7 KiB
C
163 lines
3.7 KiB
C
/*
|
|
* ATSTK1003 daughterboard-specific init code
|
|
*
|
|
* 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 version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/string.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/spi/at73c213.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/atmel-mci.h>
|
|
|
|
#include <asm/setup.h>
|
|
|
|
#include <mach/at32ap700x.h>
|
|
#include <mach/board.h>
|
|
#include <mach/init.h>
|
|
#include <mach/portmux.h>
|
|
|
|
#include "atstk1000.h"
|
|
|
|
/* Oscillator frequencies. These are board specific */
|
|
unsigned long at32_board_osc_rates[3] = {
|
|
[0] = 32768, /* 32.768 kHz on RTC osc */
|
|
[1] = 20000000, /* 20 MHz on osc0 */
|
|
[2] = 12000000, /* 12 MHz on osc1 */
|
|
};
|
|
|
|
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
|
|
static struct at73c213_board_info at73c213_data = {
|
|
.ssc_id = 0,
|
|
.shortname = "AVR32 STK1000 external DAC",
|
|
};
|
|
#endif
|
|
|
|
#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
|
|
static struct spi_board_info spi0_board_info[] __initdata = {
|
|
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
|
|
{
|
|
/* AT73C213 */
|
|
.modalias = "at73c213",
|
|
.max_speed_hz = 200000,
|
|
.chip_select = 0,
|
|
.mode = SPI_MODE_1,
|
|
.platform_data = &at73c213_data,
|
|
},
|
|
#endif
|
|
/*
|
|
* We can control the LTV350QV LCD panel, but it isn't much
|
|
* point since we don't have an LCD controller...
|
|
*/
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_BOARD_ATSTK100X_SPI1
|
|
static struct spi_board_info spi1_board_info[] __initdata = { {
|
|
/* patch in custom entries here */
|
|
} };
|
|
#endif
|
|
|
|
#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
|
|
static struct mci_platform_data __initdata mci0_data = {
|
|
.slot[0] = {
|
|
.bus_width = 4,
|
|
.detect_pin = -ENODEV,
|
|
.wp_pin = -ENODEV,
|
|
},
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
|
|
static void __init atstk1003_setup_extdac(void)
|
|
{
|
|
struct clk *gclk;
|
|
struct clk *pll;
|
|
|
|
gclk = clk_get(NULL, "gclk0");
|
|
if (IS_ERR(gclk))
|
|
goto err_gclk;
|
|
pll = clk_get(NULL, "pll0");
|
|
if (IS_ERR(pll))
|
|
goto err_pll;
|
|
|
|
if (clk_set_parent(gclk, pll)) {
|
|
pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
|
|
goto err_set_clk;
|
|
}
|
|
|
|
at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
|
|
at73c213_data.dac_clk = gclk;
|
|
|
|
err_set_clk:
|
|
clk_put(pll);
|
|
err_pll:
|
|
clk_put(gclk);
|
|
err_gclk:
|
|
return;
|
|
}
|
|
#else
|
|
static void __init atstk1003_setup_extdac(void)
|
|
{
|
|
|
|
}
|
|
#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
|
|
|
|
void __init setup_board(void)
|
|
{
|
|
#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
|
|
at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
|
|
#else
|
|
at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
|
|
#endif
|
|
/* USART 2/unused: expansion connector */
|
|
at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
|
|
|
|
at32_setup_serial_console(0);
|
|
}
|
|
|
|
static int __init atstk1003_init(void)
|
|
{
|
|
/*
|
|
* ATSTK1000 uses 32-bit SDRAM interface. Reserve the
|
|
* SDRAM-specific pins so that nobody messes with them.
|
|
*/
|
|
at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL);
|
|
|
|
#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
|
|
at32_add_device_usart(1);
|
|
#else
|
|
at32_add_device_usart(0);
|
|
#endif
|
|
at32_add_device_usart(2);
|
|
|
|
#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
|
|
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
|
|
#endif
|
|
#ifdef CONFIG_BOARD_ATSTK100X_SPI1
|
|
at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
|
|
#endif
|
|
#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
|
|
at32_add_device_mci(0, &mci0_data);
|
|
#endif
|
|
at32_add_device_usba(0, NULL);
|
|
#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
|
|
at32_add_device_ssc(0, ATMEL_SSC_TX);
|
|
#endif
|
|
|
|
atstk1000_setup_j2_leds();
|
|
atstk1003_setup_extdac();
|
|
|
|
return 0;
|
|
}
|
|
postcore_initcall(atstk1003_init);
|