6531a991f9
Update the ep93xx i2c support:
1) The platform init code passes the configuration data for the
i2c-gpio driver. This allows any gpio pin do be used for the
sda and scl pins. It also allows the platform to specify the
udelay and timeout.
2) Program the gpio configuration register to enable/disable the
open drain drivers. Note that this really only works if the
sda and scl pins are set to EP93XX_GPIO_LINE_EEDAT and
EP93XX_GPIO_LINE_EECLK.
3) Update the edb93xx.c platform init to use the new support.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* arch/arm/mach-ep93xx/include/mach/platform.h
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*/
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#ifndef __ASSEMBLY__
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struct i2c_gpio_platform_data;
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struct i2c_board_info;
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struct platform_device;
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struct ep93xxfb_mach_info;
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struct ep93xx_eth_data
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{
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unsigned char dev_addr[6];
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unsigned char phy_id;
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};
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void ep93xx_map_io(void);
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void ep93xx_init_irq(void);
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void ep93xx_init_time(unsigned long);
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/* EP93xx System Controller software locked register write */
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void ep93xx_syscon_swlocked_write(unsigned int val, void __iomem *reg);
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void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits);
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static inline void ep93xx_devcfg_set_bits(unsigned int bits)
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{
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ep93xx_devcfg_set_clear(bits, 0x00);
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}
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static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
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{
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ep93xx_devcfg_set_clear(0x00, bits);
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}
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void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
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void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
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struct i2c_board_info *devices, int num);
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void ep93xx_register_fb(struct ep93xxfb_mach_info *data);
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void ep93xx_register_pwm(int pwm0, int pwm1);
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int ep93xx_pwm_acquire_gpio(struct platform_device *pdev);
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void ep93xx_pwm_release_gpio(struct platform_device *pdev);
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void ep93xx_init_devices(void);
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extern struct sys_timer ep93xx_timer;
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#endif
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