From mboxrd@z Thu Jan 1 00:00:00 1970 From: ryan@bluewatersys.com (Ryan Mallon) Date: Tue, 29 Mar 2011 09:27:16 +1300 Subject: [PATCH] ep93xx: add support Vision EP9307 SoM In-Reply-To: <0D753D10438DA54287A00B027084269764D194F119@AUSP01VMBX24.collaborationhost.net> References: <201103281127.42908.hartleys@visionengravers.com> <4D90E1B8.7080405@bluewatersys.com> <0D753D10438DA54287A00B027084269764D194F007@AUSP01VMBX24.collaborationhost.net> <4D90E626.6020404@bluewatersys.com> <0D753D10438DA54287A00B027084269764D194F119@AUSP01VMBX24.collaborationhost.net> Message-ID: <4D90EF24.40403@bluewatersys.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 03/29/2011 09:22 AM, H Hartley Sweeten wrote: > Add support for Vision Engraving Systems EP9307 based SoM. > > Signed-off-by: Hartley Sweeten > Cc: Ryan Mallon Looks okay to me: Acked-by: Ryan Mallon > --- > > V2: updated based on comments from Ryan Mallon > > diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig > index 3a08b18..97a2493 100644 > --- a/arch/arm/mach-ep93xx/Kconfig > +++ b/arch/arm/mach-ep93xx/Kconfig > @@ -182,6 +182,13 @@ config MACH_TS72XX > Say 'Y' here if you want your kernel to support the > Technologic Systems TS-72xx board. > > +config MACH_VISION_EP9307 > + bool "Support Vision Engraving Systems EP9307 SoM" > + depends on EP93XX_SDCE0_PHYS_OFFSET > + help > + Say 'Y' here if you want your kernel to support the > + Vision Engraving Systems EP9307 SoM. > + > choice > prompt "Select a UART for early kernel messages" > > diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile > index 33ee2c8..bb5974c 100644 > --- a/arch/arm/mach-ep93xx/Makefile > +++ b/arch/arm/mach-ep93xx/Makefile > @@ -13,3 +13,4 @@ obj-$(CONFIG_MACH_MICRO9) += micro9.o > obj-$(CONFIG_MACH_SIM_ONE) += simone.o > obj-$(CONFIG_MACH_SNAPPER_CL15) += snappercl15.o > obj-$(CONFIG_MACH_TS72XX) += ts72xx.o > +obj-$(CONFIG_MACH_VISION_EP9307)+= vision_ep9307.o > diff --git a/arch/arm/mach-ep93xx/vision_ep9307.c b/arch/arm/mach-ep93xx/vision_ep9307.c > new file mode 100644 > index 0000000..10f6488 > --- /dev/null > +++ b/arch/arm/mach-ep93xx/vision_ep9307.c > @@ -0,0 +1,364 @@ > +/* > + * arch/arm/mach-ep93xx/vision_ep9307.c > + * Vision Engraving Systems EP9307 SoM support. > + * > + * Copyright (C) 2008-2011 Vision Engraving Systems > + * H Hartley Sweeten > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or (at > + * your option) any later version. > + */ > + > +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#include > +#include > +#include > + > +#include > +#include > +#include > + > +/************************************************************************* > + * Static I/O mappings for the FPGA > + *************************************************************************/ > +#define VISION_PHYS_BASE EP93XX_CS7_PHYS_BASE > +#define VISION_VIRT_BASE 0xfebff000 > + > +static struct map_desc vision_io_desc[] __initdata = { > + { > + .virtual = VISION_VIRT_BASE, > + .pfn = __phys_to_pfn(VISION_PHYS_BASE), > + .length = SZ_4K, > + .type = MT_DEVICE, > + }, > +}; > + > +static void __init vision_map_io(void) > +{ > + ep93xx_map_io(); > + > + iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc)); > +} > + > +/************************************************************************* > + * Ethernet > + *************************************************************************/ > +static struct ep93xx_eth_data vision_eth_data __initdata = { > + .phy_id = 1, > +}; > + > +/************************************************************************* > + * Framebuffer > + *************************************************************************/ > +#define VISION_LCD_ENABLE EP93XX_GPIO_LINE_EGPIO1 > + > +static int vision_lcd_setup(struct platform_device *pdev) > +{ > + int err; > + > + err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH, > + dev_name(&pdev->dev)); > + if (err) > + return err; > + > + ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS | > + EP93XX_SYSCON_DEVCFG_RASONP3 | > + EP93XX_SYSCON_DEVCFG_EXVC); > + > + return 0; > +} > + > +static void vision_lcd_teardown(struct platform_device *pdev) > +{ > + gpio_free(VISION_LCD_ENABLE); > +} > + > +static void vision_lcd_blank(int blank_mode, struct fb_info *info) > +{ > + if (blank_mode) > + gpio_set_value(VISION_LCD_ENABLE, 0); > + else > + gpio_set_value(VISION_LCD_ENABLE, 1); > +} > + > +static struct ep93xxfb_mach_info ep93xxfb_info __initdata = { > + .num_modes = EP93XXFB_USE_MODEDB, > + .bpp = 16, > + .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING, > + .setup = vision_lcd_setup, > + .teardown = vision_lcd_teardown, > + .blank = vision_lcd_blank, > +}; > + > + > +/************************************************************************* > + * GPIO Expanders > + *************************************************************************/ > +#define PCA9539_74_GPIO_BASE (EP93XX_GPIO_LINE_MAX + 1) > +#define PCA9539_75_GPIO_BASE (PCA9539_74_GPIO_BASE + 16) > +#define PCA9539_76_GPIO_BASE (PCA9539_75_GPIO_BASE + 16) > +#define PCA9539_77_GPIO_BASE (PCA9539_76_GPIO_BASE + 16) > + > +static struct pca953x_platform_data pca953x_74_gpio_data = { > + .gpio_base = PCA9539_74_GPIO_BASE, > + .irq_base = EP93XX_BOARD_IRQ(0), > +}; > + > +static struct pca953x_platform_data pca953x_75_gpio_data = { > + .gpio_base = PCA9539_75_GPIO_BASE, > + .irq_base = -1, > +}; > + > +static struct pca953x_platform_data pca953x_76_gpio_data = { > + .gpio_base = PCA9539_76_GPIO_BASE, > + .irq_base = -1, > +}; > + > +static struct pca953x_platform_data pca953x_77_gpio_data = { > + .gpio_base = PCA9539_77_GPIO_BASE, > + .irq_base = -1, > +}; > + > +/************************************************************************* > + * I2C Bus > + *************************************************************************/ > +static struct i2c_gpio_platform_data vision_i2c_gpio_data __initdata = { > + .sda_pin = EP93XX_GPIO_LINE_EEDAT, > + .scl_pin = EP93XX_GPIO_LINE_EECLK, > +}; > + > +static struct i2c_board_info vision_i2c_info[] __initdata = { > + { > + I2C_BOARD_INFO("isl1208", 0x6f), > + .irq = IRQ_EP93XX_EXT1, > + }, { > + I2C_BOARD_INFO("pca9539", 0x74), > + .platform_data = &pca953x_74_gpio_data, > + .irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7)), > + }, { > + I2C_BOARD_INFO("pca9539", 0x75), > + .platform_data = &pca953x_75_gpio_data, > + }, { > + I2C_BOARD_INFO("pca9539", 0x76), > + .platform_data = &pca953x_76_gpio_data, > + }, { > + I2C_BOARD_INFO("pca9539", 0x77), > + .platform_data = &pca953x_77_gpio_data, > + }, > +}; > + > +/************************************************************************* > + * SPI Flash > + *************************************************************************/ > +#define VISION_SPI_FLASH_CS EP93XX_GPIO_LINE_EGPIO7 > + > +static struct mtd_partition vision_spi_flash_partitions[] = { > + { > + .name = "SPI bootstrap", > + .offset = 0, > + .size = SZ_4K, > + }, { > + .name = "Bootstrap config", > + .offset = MTDPART_OFS_APPEND, > + .size = SZ_4K, > + }, { > + .name = "System config", > + .offset = MTDPART_OFS_APPEND, > + .size = MTDPART_SIZ_FULL, > + }, > +}; > + > +static struct flash_platform_data vision_spi_flash_data = { > + .name = "SPI Flash", > + .parts = vision_spi_flash_partitions, > + .nr_parts = ARRAY_SIZE(vision_spi_flash_partitions), > +}; > + > +static int vision_spi_flash_hw_setup(struct spi_device *spi) > +{ > + return gpio_request_one(VISION_SPI_FLASH_CS, GPIOF_INIT_HIGH, > + spi->modalias); > +} > + > +static void vision_spi_flash_hw_cleanup(struct spi_device *spi) > +{ > + gpio_free(VISION_SPI_FLASH_CS); > +} > + > +static void vision_spi_flash_hw_cs_control(struct spi_device *spi, int value) > +{ > + gpio_set_value(VISION_SPI_FLASH_CS, value); > +} > + > +static struct ep93xx_spi_chip_ops vision_spi_flash_hw = { > + .setup = vision_spi_flash_hw_setup, > + .cleanup = vision_spi_flash_hw_cleanup, > + .cs_control = vision_spi_flash_hw_cs_control, > +}; > + > +/************************************************************************* > + * SPI SD/MMC host > + *************************************************************************/ > +#define VISION_SPI_MMC_CS EP93XX_GPIO_LINE_G(2) > +#define VISION_SPI_MMC_WP EP93XX_GPIO_LINE_F(0) > +#define VISION_SPI_MMC_CD EP93XX_GPIO_LINE_EGPIO15 > + > +static struct gpio vision_spi_mmc_gpios[] = { > + { VISION_SPI_MMC_WP, GPIOF_DIR_IN, "mmc_spi:wp" }, > + { VISION_SPI_MMC_CD, GPIOF_DIR_IN, "mmc_spi:cd" }, > +}; > + > +static int vision_spi_mmc_init(struct device *pdev, > + irqreturn_t (*func)(int, void *), void *pdata) > +{ > + int err; > + > + err = gpio_request_array(vision_spi_mmc_gpios, > + ARRAY_SIZE(vision_spi_mmc_gpios)); > + if (err) > + return err; > + > + err = gpio_set_debounce(VISION_SPI_MMC_CD, 1); > + if (err) > + goto exit_err; > + > + err = request_irq(gpio_to_irq(VISION_SPI_MMC_CD), func, > + IRQ_TYPE_EDGE_BOTH, "mmc_spi:cd", pdata); > + if (err) > + goto exit_err; > + > + return 0; > + > +exit_err: > + gpio_free_array(vision_spi_mmc_gpios, ARRAY_SIZE(vision_spi_mmc_gpios)); > + return err; > + > +} > + > +static void vision_spi_mmc_exit(struct device *pdev, void *pdata) > +{ > + free_irq(gpio_to_irq(VISION_SPI_MMC_CD), pdata); > + gpio_free_array(vision_spi_mmc_gpios, ARRAY_SIZE(vision_spi_mmc_gpios)); > +} > + > +static int vision_spi_mmc_get_ro(struct device *pdev) > +{ > + return !!gpio_get_value(VISION_SPI_MMC_WP); > +} > + > +static int vision_spi_mmc_get_cd(struct device *pdev) > +{ > + return !gpio_get_value(VISION_SPI_MMC_CD); > +} > + > +static struct mmc_spi_platform_data vision_spi_mmc_data = { > + .init = vision_spi_mmc_init, > + .exit = vision_spi_mmc_exit, > + .get_ro = vision_spi_mmc_get_ro, > + .get_cd = vision_spi_mmc_get_cd, > + .detect_delay = 100, > + .powerup_msecs = 100, > + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, > +}; > + > +static int vision_spi_mmc_hw_setup(struct spi_device *spi) > +{ > + return gpio_request_one(VISION_SPI_MMC_CS, GPIOF_INIT_HIGH, > + spi->modalias); > +} > + > +static void vision_spi_mmc_hw_cleanup(struct spi_device *spi) > +{ > + gpio_free(VISION_SPI_MMC_CS); > +} > + > +static void vision_spi_mmc_hw_cs_control(struct spi_device *spi, int value) > +{ > + gpio_set_value(VISION_SPI_MMC_CS, value); > +} > + > +static struct ep93xx_spi_chip_ops vision_spi_mmc_hw = { > + .setup = vision_spi_mmc_hw_setup, > + .cleanup = vision_spi_mmc_hw_cleanup, > + .cs_control = vision_spi_mmc_hw_cs_control, > +}; > + > +/************************************************************************* > + * SPI Bus > + *************************************************************************/ > +static struct spi_board_info vision_spi_board_info[] __initdata = { > + { > + .modalias = "sst25l", > + .platform_data = &vision_spi_flash_data, > + .controller_data = &vision_spi_flash_hw, > + .max_speed_hz = 20000000, > + .bus_num = 0, > + .chip_select = 0, > + .mode = SPI_MODE_3, > + }, { > + .modalias = "mmc_spi", > + .platform_data = &vision_spi_mmc_data, > + .controller_data = &vision_spi_mmc_hw, > + .max_speed_hz = 20000000, > + .bus_num = 0, > + .chip_select = 1, > + .mode = SPI_MODE_3, > + }, > +}; > + > +static struct ep93xx_spi_info vision_spi_master __initdata = { > + .num_chipselect = ARRAY_SIZE(vision_spi_board_info), > +}; > + > +/************************************************************************* > + * Machine Initialization > + *************************************************************************/ > +static void __init vision_init_machine(void) > +{ > + ep93xx_init_devices(); > + ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M); > + ep93xx_register_eth(&vision_eth_data, 1); > + ep93xx_register_fb(&ep93xxfb_info); > + ep93xx_register_pwm(1, 0); > + > + /* > + * Request the gpio expander's interrupt gpio line now to prevent > + * the kernel from doing a WARN in gpiolib:gpio_ensure_requested(). > + */ > + if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN, > + "pca9539:74")) > + pr_warn("cannot request interrupt gpio for pca9539:74\n"); > + > + ep93xx_register_i2c(&vision_i2c_gpio_data, vision_i2c_info, > + ARRAY_SIZE(vision_i2c_info)); > + ep93xx_register_spi(&vision_spi_master, vision_spi_board_info, > + ARRAY_SIZE(vision_spi_board_info)); > +} > + > +MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307") > + /* Maintainer: H Hartley Sweeten */ > + .boot_params = EP93XX_SDCE0_PHYS_BASE + 0x100, > + .map_io = vision_map_io, > + .init_irq = ep93xx_init_irq, > + .timer = &ep93xx_timer, > + .init_machine = vision_init_machine, > +MACHINE_END -- Bluewater Systems Ltd - ARM Technology Solution Centre Ryan Mallon 5 Amuri Park, 404 Barbadoes St ryan at bluewatersys.com PO Box 13 889, Christchurch 8013 http://www.bluewatersys.com New Zealand Phone: +64 3 3779127 Freecall: Australia 1800 148 751 Fax: +64 3 3779135 USA 1800 261 2934