From 0ab0b6d226caa4a0268ecbce76a7376c3f40ee6b Mon Sep 17 00:00:00 2001 From: Abhilash Kesavan Date: Tue, 8 Jun 2010 16:55:45 +0900 Subject: ARM: S3C64XX: Add support for Compact Flash driver on SMDK6410 Following is added for the CF-ATA driver: - Platform data strucure instantiation - Platform device enabling code - Addition of cfcon clock - Platform-specific gpio setup code Signed-off-by: Abhilash Kesavan Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/setup-ide.c | 46 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 arch/arm/mach-s3c64xx/setup-ide.c (limited to 'arch/arm/mach-s3c64xx/setup-ide.c') diff --git a/arch/arm/mach-s3c64xx/setup-ide.c b/arch/arm/mach-s3c64xx/setup-ide.c new file mode 100644 index 0000000..c12c315 --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-ide.c @@ -0,0 +1,46 @@ +/* linux/arch/arm/mach-s3c64xx/setup-ide.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S3C64XX setup information for IDE + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include + +#include +#include +#include + +void s3c64xx_ide_setup_gpio(void) +{ + u32 reg; + u32 gpio = 0; + + 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] */ + for (gpio = S3C64XX_GPK(0); gpio <= S3C64XX_GPK(15); gpio++) + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(5)); + + /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */ + for (gpio = S3C64XX_GPL(0); gpio <= S3C64XX_GPL(2); gpio++) + s3c_gpio_cfgpin(gpio, 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)); + for (gpio = S3C64XX_GPM(0); gpio <= S3C64XX_GPM(4); gpio++) + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6)); +} -- cgit v1.1