/* * 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 <video/atmel_lcdc.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 { /* QVGA display */ .modalias = "ltv350qv", .max_speed_hz = 16000000, .chip_select = 1, .mode = SPI_MODE_3, }, }; #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 atstk1004_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 atstk1004_setup_extdac(void) { } #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */ void __init setup_board(void) { #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM at32_map_usart(0, 1, 0); /* USART 0/B: /dev/ttyS1, IRDA */ #else at32_map_usart(1, 0, 0); /* USART 1/A: /dev/ttyS0, DB9 */ #endif /* USART 2/unused: expansion connector */ at32_map_usart(3, 2, 0); /* USART 3/C: /dev/ttyS2, DB9 */ at32_setup_serial_console(0); } static int __init atstk1004_init(void) { #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_lcdc(0, &atstk1000_lcdc_data, fbmem_start, fbmem_size, ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL); 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(); atstk1004_setup_extdac(); return 0; } postcore_initcall(atstk1004_init);