/* linux/arch/arm/mach-s3c64xx/setup-ide.c * * Copyright (c) 2010 Samsung Electronics Co., Ltd. * http://www.samsung.com/ * * S3C64XX setup information for IDE * * 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/kernel.h> #include <linux/gpio.h> #include <linux/io.h> #include <mach/map.h> #include <mach/regs-clock.h> #include <plat/gpio-cfg.h> void s3c64xx_ide_setup_gpio(void) { u32 reg; u32 gpio = 0; reg = readl(S3C_MEM_SYS_CFG) & (~0x3f); /* Independent CF interface, CF chip select configuration */ writel(reg | MEM_SYS_CFG_INDEP_CF | MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG); s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4)); /* Set XhiDATA[15:0] pins as CF Data[15:0] */ for (gpio = S3C64XX_GPK(0); gpio <= S3C64XX_GPK(15); gpio++) s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(5)); /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */ for (gpio = S3C64XX_GPL(0); gpio <= S3C64XX_GPL(2); gpio++) s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6)); /* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */ s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1)); for (gpio = S3C64XX_GPM(0); gpio <= S3C64XX_GPM(4); gpio++) s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6)); }