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 <linux/platform_data/ata-samsung_cf.h>
13
14#include "map.h"
15#include "regs-clock.h"
16#include "gpio-cfg.h"
17#include "gpio-samsung.h"
18
19void s3c64xx_ide_setup_gpio(void)
20{
21	u32 reg;
22
23	reg = readl(S3C_MEM_SYS_CFG) & (~0x3f);
24
25	/* Independent CF interface, CF chip select configuration */
26	writel(reg | MEM_SYS_CFG_INDEP_CF |
27		MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG);
28
29	s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
30
31	/* Set XhiDATA[15:0] pins as CF Data[15:0] */
32	s3c_gpio_cfgpin_range(S3C64XX_GPK(0), 16, S3C_GPIO_SFN(5));
33
34	/* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
35	s3c_gpio_cfgpin_range(S3C64XX_GPL(0), 3, S3C_GPIO_SFN(6));
36
37	/* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
38	s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1));
39	s3c_gpio_cfgpin_range(S3C64XX_GPM(0), 5, S3C_GPIO_SFN(6));
40}
41