diff options
Diffstat (limited to 'arch/avr32/boards/atstk1000/atstk1003.c')
| -rw-r--r-- | arch/avr32/boards/atstk1000/atstk1003.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c new file mode 100644 index 00000000000..a0b223df35a --- /dev/null +++ b/arch/avr32/boards/atstk1000/atstk1003.c @@ -0,0 +1,162 @@ +/* + * 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" + +#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); |