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}