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Diffstat (limited to 'arch/avr32/boards/merisc/setup.c')
| -rw-r--r-- | arch/avr32/boards/merisc/setup.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/arch/avr32/boards/merisc/setup.c b/arch/avr32/boards/merisc/setup.c deleted file mode 100644 index 718a6d7eb808..000000000000 --- a/arch/avr32/boards/merisc/setup.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Board-specific setup code for the Merisc - * - * Copyright (C) 2008 Martinsson Elektronik AB - * - * 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/etherdevice.h> -#include <linux/i2c.h> -#include <linux/i2c-gpio.h> -#include <linux/gpio.h> -#include <linux/init.h> -#include <linux/linkage.h> -#include <linux/platform_device.h> -#include <linux/types.h> -#include <linux/leds.h> -#include <linux/spi/spi.h> -#include <linux/spi/ads7846.h> -#include <linux/irq.h> -#include <linux/fb.h> -#include <linux/atmel-mci.h> -#include <linux/pwm.h> -#include <linux/leds_pwm.h> - -#include <asm/io.h> -#include <asm/setup.h> - -#include <mach/at32ap700x.h> -#include <mach/board.h> -#include <mach/init.h> -#include <mach/portmux.h> - -#include "merisc.h" - -/* Holds the autodetected board model and revision */ -static int merisc_board_id; - -/* Initialized by bootloader-specific startup code. */ -struct tag *bootloader_tags __initdata; - -/* 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 */ -}; - -struct eth_addr { - u8 addr[6]; -}; - -static struct eth_addr __initdata hw_addr[2]; -static struct macb_platform_data __initdata eth_data[2]; - -static int ads7846_get_pendown_state_PB26(void) -{ - return !gpio_get_value(GPIO_PIN_PB(26)); -} - -static int ads7846_get_pendown_state_PB28(void) -{ - return !gpio_get_value(GPIO_PIN_PB(28)); -} - -static struct ads7846_platform_data __initdata ads7846_data = { - .model = 7846, - .vref_delay_usecs = 100, - .vref_mv = 0, - .keep_vref_on = 0, - .settle_delay_usecs = 150, - .penirq_recheck_delay_usecs = 1, - .x_plate_ohms = 800, - .debounce_rep = 4, - .debounce_max = 10, - .debounce_tol = 50, - .get_pendown_state = ads7846_get_pendown_state_PB26, - .filter_init = NULL, - .filter = NULL, - .filter_cleanup = NULL, -}; - -static struct spi_board_info __initdata spi0_board_info[] = { - { - .modalias = "ads7846", - .max_speed_hz = 3250000, - .chip_select = 0, - .bus_num = 0, - .platform_data = &ads7846_data, - .mode = SPI_MODE_0, - }, -}; - -static struct mci_platform_data __initdata mci0_data = { - .slot[0] = { - .bus_width = 4, - .detect_pin = GPIO_PIN_PE(19), - .wp_pin = GPIO_PIN_PE(20), - .detect_is_active_high = true, - }, -}; - -static int __init parse_tag_ethernet(struct tag *tag) -{ - int i; - - i = tag->u.ethernet.mac_index; - if (i < ARRAY_SIZE(hw_addr)) { - memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address, - sizeof(hw_addr[i].addr)); - } - - return 0; -} -__tagtable(ATAG_ETHERNET, parse_tag_ethernet); - -static void __init set_hw_addr(struct platform_device *pdev) -{ - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - const u8 *addr; - void __iomem *regs; - struct clk *pclk; - - if (!res) - return; - - if (pdev->id >= ARRAY_SIZE(hw_addr)) - return; - - addr = hw_addr[pdev->id].addr; - if (!is_valid_ether_addr(addr)) - return; - - regs = (void __iomem __force *)res->start; - pclk = clk_get(&pdev->dev, "pclk"); - if (IS_ERR(pclk)) - return; - - clk_enable(pclk); - __raw_writel((addr[3] << 24) | (addr[2] << 16) - | (addr[1] << 8) | addr[0], regs + 0x98); - __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c); - clk_disable(pclk); - clk_put(pclk); -} - -static struct i2c_gpio_platform_data i2c_gpio_data = { - .sda_pin = GPIO_PIN_PA(6), - .scl_pin = GPIO_PIN_PA(7), - .sda_is_open_drain = 1, - .scl_is_open_drain = 1, - .udelay = 2, -}; - -static struct platform_device i2c_gpio_device = { - .name = "i2c-gpio", - .id = 0, - .dev = { - .platform_data = &i2c_gpio_data, - }, -}; - -static struct i2c_board_info __initdata i2c_info[] = { - { - I2C_BOARD_INFO("pcf8563", 0x51) - }, -}; - -#if IS_ENABLED(CONFIG_LEDS_PWM) -static struct pwm_lookup pwm_lookup[] = { - PWM_LOOKUP("at91sam9rl-pwm", 0, "leds_pwm", "backlight", - 5000, PWM_POLARITY_NORMAL), -}; - -static struct led_pwm pwm_leds[] = { - { - .name = "backlight", - .max_brightness = 255, - }, -}; - -static struct led_pwm_platform_data pwm_data = { - .num_leds = ARRAY_SIZE(pwm_leds), - .leds = pwm_leds, -}; - -static struct platform_device leds_pwm = { - .name = "leds_pwm", - .id = -1, - .dev = { - .platform_data = &pwm_data, - }, -}; -#endif - -const char *merisc_model(void) -{ - switch (merisc_board_id) { - case 0: - case 1: - return "500-01"; - case 2: - return "BT"; - default: - return "Unknown"; - } -} - -const char *merisc_revision(void) -{ - switch (merisc_board_id) { - case 0: - return "B"; - case 1: - return "D"; - case 2: - return "A"; - default: - return "Unknown"; - } -} - -static void detect_merisc_board_id(void) -{ - /* Board ID pins MUST be set as input or the board may be damaged */ - at32_select_gpio(GPIO_PIN_PA(24), AT32_GPIOF_PULLUP); - at32_select_gpio(GPIO_PIN_PA(25), AT32_GPIOF_PULLUP); - at32_select_gpio(GPIO_PIN_PA(26), AT32_GPIOF_PULLUP); - at32_select_gpio(GPIO_PIN_PA(27), AT32_GPIOF_PULLUP); - - merisc_board_id = !gpio_get_value(GPIO_PIN_PA(24)) + - !gpio_get_value(GPIO_PIN_PA(25)) * 2 + - !gpio_get_value(GPIO_PIN_PA(26)) * 4 + - !gpio_get_value(GPIO_PIN_PA(27)) * 8; -} - -void __init setup_board(void) -{ - at32_map_usart(0, 0, 0); - at32_map_usart(1, 1, 0); - at32_map_usart(3, 3, 0); - at32_setup_serial_console(1); -} - -static int __init merisc_init(void) -{ - detect_merisc_board_id(); - - printk(KERN_NOTICE "BOARD: Merisc %s revision %s\n", merisc_model(), - merisc_revision()); - - /* Reserve pins for SDRAM */ - at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL | (1 << 26)); - - if (merisc_board_id >= 1) - at32_map_usart(2, 2, 0); - - at32_add_device_usart(0); - at32_add_device_usart(1); - if (merisc_board_id >= 1) - at32_add_device_usart(2); - at32_add_device_usart(3); - set_hw_addr(at32_add_device_eth(0, ð_data[0])); - - /* ADS7846 PENIRQ */ - if (merisc_board_id == 0) { - ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB26; - at32_select_periph(GPIO_PIOB_BASE, 1 << 26, - GPIO_PERIPH_A, AT32_GPIOF_PULLUP); - spi0_board_info[0].irq = AT32_EXTINT(1); - } else { - ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB28; - at32_select_periph(GPIO_PIOB_BASE, 1 << 28, GPIO_PERIPH_A, - AT32_GPIOF_PULLUP); - spi0_board_info[0].irq = AT32_EXTINT(3); - } - - /* ADS7846 busy pin */ - at32_select_gpio(GPIO_PIN_PA(4), AT32_GPIOF_PULLUP); - - at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); - - at32_add_device_mci(0, &mci0_data); - -#if IS_ENABLED(CONFIG_LEDS_PWM) - pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup)); - at32_add_device_pwm((1 << 0) | (1 << 2)); - platform_device_register(&leds_pwm); -#else - at32_add_device_pwm((1 << 2)); -#endif - - at32_select_gpio(i2c_gpio_data.sda_pin, - AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); - at32_select_gpio(i2c_gpio_data.scl_pin, - AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); - platform_device_register(&i2c_gpio_device); - - i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info)); - - return 0; -} -postcore_initcall(merisc_init); |