diff options
Diffstat (limited to 'kernel/arch/avr32/boards/merisc')
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/Kconfig | 5 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/Makefile | 1 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/display.c | 65 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/flash.c | 139 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/merisc.h | 18 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/merisc_sysfs.c | 64 | ||||
| -rw-r--r-- | kernel/arch/avr32/boards/merisc/setup.c | 306 |
7 files changed, 598 insertions, 0 deletions
diff --git a/kernel/arch/avr32/boards/merisc/Kconfig b/kernel/arch/avr32/boards/merisc/Kconfig new file mode 100644 index 000000000..7e043275d --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/Kconfig @@ -0,0 +1,5 @@ +# Merisc customization + +if BOARD_MERISC + +endif # BOARD_MERISC diff --git a/kernel/arch/avr32/boards/merisc/Makefile b/kernel/arch/avr32/boards/merisc/Makefile new file mode 100644 index 000000000..d24c78729 --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/Makefile @@ -0,0 +1 @@ +obj-y += setup.o flash.o display.o merisc_sysfs.o diff --git a/kernel/arch/avr32/boards/merisc/display.c b/kernel/arch/avr32/boards/merisc/display.c new file mode 100644 index 000000000..e7683ee7e --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/display.c @@ -0,0 +1,65 @@ +/* + * Display setup code for the Merisc board + * + * 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/init.h> +#include <linux/platform_device.h> +#include <linux/fb.h> +#include <video/atmel_lcdc.h> +#include <asm/setup.h> +#include <mach/board.h> +#include "merisc.h" + +static struct fb_videomode merisc_fb_videomode[] = { + { + .refresh = 44, + .xres = 640, + .yres = 480, + .left_margin = 96, + .right_margin = 96, + .upper_margin = 34, + .lower_margin = 8, + .hsync_len = 64, + .vsync_len = 64, + .name = "640x480 @ 44", + .pixclock = KHZ2PICOS(25180), + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED, + }, +}; + +static struct fb_monspecs merisc_fb_monspecs = { + .manufacturer = "Kyo", + .monitor = "TCG075VG2AD", + .modedb = merisc_fb_videomode, + .modedb_len = ARRAY_SIZE(merisc_fb_videomode), + .hfmin = 30000, + .hfmax = 33333, + .vfmin = 60, + .vfmax = 90, + .dclkmax = 30000000, +}; + +struct atmel_lcdfb_pdata merisc_lcdc_data = { + .default_bpp = 24, + .default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN, + .default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT + | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE + | ATMEL_LCDC_MEMOR_BIG), + .default_monspecs = &merisc_fb_monspecs, + .guard_time = 2, +}; + +static int __init merisc_display_init(void) +{ + at32_add_device_lcdc(0, &merisc_lcdc_data, fbmem_start, + fbmem_size, 0); + + return 0; +} +device_initcall(merisc_display_init); diff --git a/kernel/arch/avr32/boards/merisc/flash.c b/kernel/arch/avr32/boards/merisc/flash.c new file mode 100644 index 000000000..8e856fd6f --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/flash.c @@ -0,0 +1,139 @@ +/* + * Merisc board-specific flash initialization + * + * 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/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <mach/smc.h> + +/* Will be translated to units of 14.3 ns, rounded up */ +static struct smc_timing flash_timing __initdata = { + .ncs_read_setup = 1 * 14, + .nrd_setup = 5 * 14, + .ncs_write_setup = 1 * 14, + .nwe_setup = 2 * 14, + + .ncs_read_pulse = 12 * 14, + .nrd_pulse = 7 * 14, + .ncs_write_pulse = 8 * 14, + .nwe_pulse = 4 * 14, + + .read_cycle = 14 * 14, + .write_cycle = 10 * 14, +}; + +static struct smc_config flash_config __initdata = { + .bus_width = 2, + .nrd_controlled = 1, + .nwe_controlled = 1, + .byte_write = 1, + .tdf_cycles = 3, +}; + +static struct mtd_partition flash_0_parts[] = { + { + .name = "boot", + .offset = 0x00000000, + .size = 0x00060000, + .mask_flags = 0, + }, + { + .name = "kernel", + .offset = 0x00060000, + .size = 0x00200000, + .mask_flags = 0, + }, + { + .name = "root", + .offset = 0x00260000, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0, + }, +}; + +static struct mtd_partition flash_1_parts[] = { + { + .name = "2ndflash", + .offset = 0x00000000, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0, + }, +}; + +static struct physmap_flash_data flash_data[] = { + { + .width = 2, + .nr_parts = ARRAY_SIZE(flash_0_parts), + .parts = flash_0_parts, + }, + { + .width = 2, + .nr_parts = ARRAY_SIZE(flash_1_parts), + .parts = flash_1_parts, + } +}; + +static struct resource flash_resource[] = { + { + .start = 0x00000000, + .end = 0x03ffffff, + .flags = IORESOURCE_MEM, + }, + { + .start = 0x04000000, + .end = 0x07ffffff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device flash_device[] = { + { + .name = "physmap-flash", + .id = 0, + .resource = &flash_resource[0], + .num_resources = 1, + .dev = { + .platform_data = &flash_data[0], + }, + }, + { + .name = "physmap-flash", + .id = 1, + .resource = &flash_resource[1], + .num_resources = 1, + .dev = { + .platform_data = &flash_data[1], + }, + }, +}; + +static int __init merisc_flash_init(void) +{ + int ret; + smc_set_timing(&flash_config, &flash_timing); + + ret = smc_set_configuration(0, &flash_config); + if (ret < 0) { + printk(KERN_ERR "Merisc: failed to set NOR flash timing #0\n"); + return ret; + } + + ret = smc_set_configuration(4, &flash_config); + if (ret < 0) { + printk(KERN_ERR "Merisc: failed to set NOR flash timing #1\n"); + return ret; + } + + platform_device_register(&flash_device[0]); + platform_device_register(&flash_device[1]); + return 0; +} +device_initcall(merisc_flash_init); diff --git a/kernel/arch/avr32/boards/merisc/merisc.h b/kernel/arch/avr32/boards/merisc/merisc.h new file mode 100644 index 000000000..50ffb2f3f --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/merisc.h @@ -0,0 +1,18 @@ +/* + * Merisc exports + * + * 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. + */ +#ifndef __ARCH_AVR32_BOARDS_MERISC_MERISC_H +#define __ARCH_AVR32_BOARDS_MERISC_MERISC_H + +const char *merisc_revision(void); +const char *merisc_model(void); + +extern struct class merisc_class; + +#endif /* __ARCH_AVR32_BOARDS_MERISC_MERISC_H */ diff --git a/kernel/arch/avr32/boards/merisc/merisc_sysfs.c b/kernel/arch/avr32/boards/merisc/merisc_sysfs.c new file mode 100644 index 000000000..5a252318f --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/merisc_sysfs.c @@ -0,0 +1,64 @@ +/* + * Merisc sysfs exports + * + * 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/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/device.h> +#include <linux/timer.h> +#include <linux/err.h> +#include <linux/ctype.h> +#include "merisc.h" + +static ssize_t merisc_model_show(struct class *class, char *buf) +{ + ssize_t ret = 0; + + sprintf(buf, "%s\n", merisc_model()); + ret = strlen(buf) + 1; + + return ret; +} + +static ssize_t merisc_revision_show(struct class *class, char *buf) +{ + ssize_t ret = 0; + + sprintf(buf, "%s\n", merisc_revision()); + ret = strlen(buf) + 1; + + return ret; +} + +static struct class_attribute merisc_class_attrs[] = { + __ATTR(model, S_IRUGO, merisc_model_show, NULL), + __ATTR(revision, S_IRUGO, merisc_revision_show, NULL), + __ATTR_NULL, +}; + +struct class merisc_class = { + .name = "merisc", + .owner = THIS_MODULE, + .class_attrs = merisc_class_attrs, +}; + +static int __init merisc_sysfs_init(void) +{ + int status; + + status = class_register(&merisc_class); + if (status < 0) + return status; + + return 0; +} + +postcore_initcall(merisc_sysfs_init); diff --git a/kernel/arch/avr32/boards/merisc/setup.c b/kernel/arch/avr32/boards/merisc/setup.c new file mode 100644 index 000000000..83d896cc2 --- /dev/null +++ b/kernel/arch/avr32/boards/merisc/setup.c @@ -0,0 +1,306 @@ +/* + * 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 <asm/gpio.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); |