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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/mach-s3c64xx/setup-ide.c | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-s3c64xx/setup-ide.c')
| -rw-r--r-- | arch/arm/mach-s3c64xx/setup-ide.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c64xx/setup-ide.c b/arch/arm/mach-s3c64xx/setup-ide.c new file mode 100644 index 000000000..810139a80 --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-ide.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2010 Samsung Electronics Co., Ltd. +// http://www.samsung.com/ +// +// S3C64XX setup information for IDE + +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/io.h> + +#include <mach/map.h> +#include <mach/regs-clock.h> +#include <plat/gpio-cfg.h> +#include <mach/gpio-samsung.h> +#include <linux/platform_data/ata-samsung_cf.h> + +void s3c64xx_ide_setup_gpio(void) +{ + u32 reg; + + reg = readl(S3C_MEM_SYS_CFG) & (~0x3f); + + /* Independent CF interface, CF chip select configuration */ + writel(reg | MEM_SYS_CFG_INDEP_CF | + MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG); + + s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4)); + + /* Set XhiDATA[15:0] pins as CF Data[15:0] */ + s3c_gpio_cfgpin_range(S3C64XX_GPK(0), 16, S3C_GPIO_SFN(5)); + + /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */ + s3c_gpio_cfgpin_range(S3C64XX_GPL(0), 3, S3C_GPIO_SFN(6)); + + /* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */ + s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1)); + s3c_gpio_cfgpin_range(S3C64XX_GPM(0), 5, S3C_GPIO_SFN(6)); +} |