47882cf620
This patch lets the board code choose which pin out to use for the LCD interface. On AT32AP7000 the LCDC is wired to two sets of pins, which lets the user choose between dual ethernet and 32-bit EBI. For the ATNGW100 board it is vital to have the choice to select the alternative pinout since this pinout is routed to the external headers. Update ATSTK1002 and ATSTK1004 to use the new interface. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
155 lines
3.4 KiB
C
155 lines
3.4 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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/* Oscillator frequencies. These are board specific */
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unsigned long at32_board_osc_rates[3] = {
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[0] = 32768, /* 32.768 kHz on RTC osc */
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[1] = 20000000, /* 20 MHz on osc0 */
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[2] = 12000000, /* 12 MHz on osc1 */
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};
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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, 0);
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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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