1 /* linux/arch/arm/mach-s3c64xx/setup-ide.c
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
6 * S3C64XX setup information for IDE
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/kernel.h>
14 #include <linux/gpio.h>
18 #include <mach/regs-clock.h>
19 #include <plat/gpio-cfg.h>
21 void s3c64xx_ide_setup_gpio(void)
25 reg = readl(S3C_MEM_SYS_CFG) & (~0x3f);
27 /* Independent CF interface, CF chip select configuration */
28 writel(reg | MEM_SYS_CFG_INDEP_CF |
29 MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG);
31 s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
33 /* Set XhiDATA[15:0] pins as CF Data[15:0] */
34 s3c_gpio_cfgpin_range(S3C64XX_GPK(0), 16, S3C_GPIO_SFN(5));
36 /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
37 s3c_gpio_cfgpin_range(S3C64XX_GPL(0), 3, S3C_GPIO_SFN(6));
39 /* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
40 s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1));
41 s3c_gpio_cfgpin_range(S3C64XX_GPM(0), 5, S3C_GPIO_SFN(6));