1/* linux/arch/arm/mach-s3c64xx/setup-ide.c
 2 *
 3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 4 *		http://www.samsung.com/
 5 *
 6 * S3C64XX setup information for IDE
 7 *
 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.
11*/
12
13#include <linux/kernel.h>
14#include <linux/gpio.h>
15#include <linux/io.h>
16
17#include <mach/map.h>
18#include <mach/regs-clock.h>
19#include <plat/gpio-cfg.h>
20#include <plat/ata.h>
21
22void s3c64xx_ide_setup_gpio(void)
23{
24	u32 reg;
25
26	reg = readl(S3C_MEM_SYS_CFG) & (~0x3f);
27
28	/* Independent CF interface, CF chip select configuration */
29	writel(reg | MEM_SYS_CFG_INDEP_CF |
30		MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG);
31
32	s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
33
34	/* Set XhiDATA[15:0] pins as CF Data[15:0] */
35	s3c_gpio_cfgpin_range(S3C64XX_GPK(0), 16, S3C_GPIO_SFN(5));
36
37	/* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
38	s3c_gpio_cfgpin_range(S3C64XX_GPL(0), 3, S3C_GPIO_SFN(6));
39
40	/* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
41	s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1));
42	s3c_gpio_cfgpin_range(S3C64XX_GPM(0), 5, S3C_GPIO_SFN(6));
43}