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MIPS: RB532: Provide functions for gpio configuration

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As gpiolib doesn't support pin multiplexing, it provides no way to
access the GPIOFUNC register. Also there is no support for setting
interrupt status and level. These functions provide access to them and
are needed by the CompactFlash driver.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Phil Sutter
2008-11-01 15:13:21 +01:00
committed by Ralf Baechle
parent f43909dfb3
commit 2e373952cc
2 changed files with 77 additions and 122 deletions
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2
arch/mips/include/asm/mach-rc32434/gpio.h
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@@ -84,5 +84,7 @@ extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned
extern unsigned get_434_reg(unsigned reg_offs);
extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask);
extern unsigned char get_latch_u5(void);
extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
extern void rb532_gpio_set_istat(int bit, unsigned gpio);
#endif /* _RC32434_GPIO_H_ */