148 lines
3.2 KiB
C
148 lines
3.2 KiB
C
/*
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* ATSTK1003 daughterboard-specific init code
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*
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* Copyright (C) 2007 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/spi/at73c213.h>
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#include <linux/spi/spi.h>
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#include <video/atmel_lcdc.h>
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#include <asm/setup.h>
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#include <asm/arch/at32ap700x.h>
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#include <asm/arch/board.h>
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#include <asm/arch/init.h>
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#include <asm/arch/portmux.h>
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#include "atstk1000.h"
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#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
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static struct at73c213_board_info at73c213_data = {
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.ssc_id = 0,
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.shortname = "AVR32 STK1000 external DAC",
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};
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#endif
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#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
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static struct spi_board_info spi0_board_info[] __initdata = {
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#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
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{
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/* AT73C213 */
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.modalias = "at73c213",
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.max_speed_hz = 200000,
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.chip_select = 0,
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.mode = SPI_MODE_1,
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.platform_data = &at73c213_data,
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},
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#endif
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{
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/* QVGA display */
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.modalias = "ltv350qv",
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.max_speed_hz = 16000000,
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.chip_select = 1,
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.mode = SPI_MODE_3,
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},
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};
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#endif
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#ifdef CONFIG_BOARD_ATSTK100X_SPI1
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static struct spi_board_info spi1_board_info[] __initdata = { {
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/* patch in custom entries here */
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} };
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#endif
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#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
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static void __init atstk1004_setup_extdac(void)
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{
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struct clk *gclk;
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struct clk *pll;
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gclk = clk_get(NULL, "gclk0");
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if (IS_ERR(gclk))
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goto err_gclk;
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pll = clk_get(NULL, "pll0");
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if (IS_ERR(pll))
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goto err_pll;
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if (clk_set_parent(gclk, pll)) {
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pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
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goto err_set_clk;
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}
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at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
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at73c213_data.dac_clk = gclk;
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err_set_clk:
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clk_put(pll);
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err_pll:
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clk_put(gclk);
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err_gclk:
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return;
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}
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#else
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static void __init atstk1004_setup_extdac(void)
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{
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}
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#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
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void __init setup_board(void)
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{
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#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
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at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
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#else
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at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
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#endif
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/* USART 2/unused: expansion connector */
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at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
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at32_setup_serial_console(0);
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}
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static int __init atstk1004_init(void)
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{
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at32_add_system_devices();
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#ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
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at32_add_device_usart(1);
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#else
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at32_add_device_usart(0);
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#endif
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at32_add_device_usart(2);
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#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
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at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
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#endif
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#ifdef CONFIG_BOARD_ATSTK100X_SPI1
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at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
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#endif
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#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
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at32_add_device_mci(0);
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#endif
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at32_add_device_lcdc(0, &atstk1000_lcdc_data,
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fbmem_start, fbmem_size);
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at32_add_device_usba(0, NULL);
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#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
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at32_add_device_ssc(0, ATMEL_SSC_TX);
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#endif
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atstk1000_setup_j2_leds();
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atstk1004_setup_extdac();
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return 0;
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}
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postcore_initcall(atstk1004_init);
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