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ar71xx: add platform data for the RB750 NAND driver

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SVN-Revision: 31022
This commit is contained in:
Gabor Juhos
2012-03-19 15:56:59 +00:00
parent 57d0b185e5
commit 8a471efe01
3 changed files with 55 additions and 26 deletions
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24
target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c
View File

@@ -1,5 +1,5 @@
/*
* MikroTik RouterBOARD 750 support
* MikroTik RouterBOARD 750/750GL support
*
* Copyright (C) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
*
@@ -59,9 +59,13 @@ static struct platform_device rb750_leds_device = {
}
};
static struct rb7xx_nand_platform_data rb750_nand_data;
static struct platform_device rb750_nand_device = {
.name = "rb750-nand",
.id = -1,
.dev = {
.platform_data = &rb750_nand_data,
}
};
int rb750_latch_change(u32 mask_clr, u32 mask_set)
@@ -113,19 +117,24 @@ unlock:
}
EXPORT_SYMBOL_GPL(rb750_latch_change);
void rb750_nand_pins_enable(void)
static void rb750_nand_enable_pins(void)
{
rb750_latch_change(RB750_LVC573_LE, 0);
ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
AR724X_GPIO_FUNC_SPI_EN);
}
EXPORT_SYMBOL_GPL(rb750_nand_pins_enable);
void rb750_nand_pins_disable(void)
static void rb750_nand_disable_pins(void)
{
ath79_gpio_function_setup(AR724X_GPIO_FUNC_SPI_EN,
AR724X_GPIO_FUNC_JTAG_DISABLE);
rb750_latch_change(0, RB750_LVC573_LE);
}
static void rb750_nand_latch_change(u32 clear, u32 set)
{
rb750_latch_change(clear, set);
}
EXPORT_SYMBOL_GPL(rb750_nand_pins_disable);
static void __init rb750_setup(void)
{
@@ -147,6 +156,11 @@ static void __init rb750_setup(void)
ath79_register_eth(0);
platform_device_register(&rb750_leds_device);
rb750_nand_data.nce_line = RB750_NAND_NCE;
rb750_nand_data.enable_pins = rb750_nand_enable_pins;
rb750_nand_data.disable_pins = rb750_nand_disable_pins;
rb750_nand_data.latch_change = rb750_nand_latch_change;
platform_device_register(&rb750_nand_device);
}

11
target/linux/ar71xx/files/arch/mips/include/asm/mach-ath79/mach-rb750.h
View File

@@ -43,6 +43,7 @@
#define RB750_LED_PORT3 BIT(RB750_GPIO_LED_PORT3)
#define RB750_LED_PORT4 BIT(RB750_GPIO_LED_PORT4)
#define RB750_LED_PORT5 BIT(RB750_GPIO_LED_PORT5)
#define RB750_NAND_NCE BIT(RB750_GPIO_NAND_NCE)
#define RB750_LVC573_LE BIT(RB750_GPIO_LVC573_LE)
@@ -61,8 +62,14 @@ struct rb750_led_platform_data {
struct rb750_led_data *leds;
};
struct rb7xx_nand_platform_data {
u32 nce_line;
void (*enable_pins)(void);
void (*disable_pins)(void);
void (*latch_change)(u32, u32);
};
int rb750_latch_change(u32 mask_clr, u32 mask_set);
void rb750_nand_pins_enable(void);
void rb750_nand_pins_disable(void);
#endif /* _MACH_RB750_H */