1// SPDX-License-Identifier: GPL-2.0 2// 3// Copyright (c) 2010 Samsung Electronics Co., Ltd. 4// http://www.samsung.com/ 5// 6// S3C64XX setup information for IDE 7 8#include <linux/kernel.h> 9#include <linux/gpio.h> 10#include <linux/io.h> 11 12#include <mach/map.h> 13#include <mach/regs-clock.h> 14#include <plat/gpio-cfg.h> 15#include <mach/gpio-samsung.h> 16#include <linux/platform_data/ata-samsung_cf.h> 17 18void s3c64xx_ide_setup_gpio(void) 19{ 20 u32 reg; 21 22 reg = readl(S3C_MEM_SYS_CFG) & (~0x3f); 23 24 /* Independent CF interface, CF chip select configuration */ 25 writel(reg | MEM_SYS_CFG_INDEP_CF | 26 MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG); 27 28 s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4)); 29 30 /* Set XhiDATA[15:0] pins as CF Data[15:0] */ 31 s3c_gpio_cfgpin_range(S3C64XX_GPK(0), 16, S3C_GPIO_SFN(5)); 32 33 /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */ 34 s3c_gpio_cfgpin_range(S3C64XX_GPL(0), 3, S3C_GPIO_SFN(6)); 35 36 /* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */ 37 s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1)); 38 s3c_gpio_cfgpin_range(S3C64XX_GPM(0), 5, S3C_GPIO_SFN(6)); 39} 40