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/*
* 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 <asm/setup.h>
#include <asm/arch/at32ap700x.h>
#include <asm/arch/board.h>
#include <asm/arch/init.h>
#include <asm/arch/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
#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_PIN_PA(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_PIN_PE(0)); /* DATA[16] */
at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */
at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */
at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */
at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */
at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */
at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */
at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */
at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */
at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */
at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */
at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */
at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */
at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */
at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */
at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */
at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */
at32_add_system_devices();
#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);
#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);
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