Linux 2.6.28 内核时钟问题

1、AT91SAM9260 linux 内核支持RTC内核显示：drivers/rtc/hctosys.c: unable to open rtc device （rtc0）选中I 2C<*> GPIO-based bitbanging I2C选中RTC[*] Set system time from RTC on startup and resume
（rtc0） RTC used to set the system time
<*> Philips PCF8563/Epson RTC8564注: < > AT91SAM9x/AT91CAP9 为选中内部时钟原因：I2C linux-2.6.28与linux-2.6.20内核版本有些地方不一致解决：在arch/arm/mach-at91/board-sam9260ek.c里添加I2C设备地址,添加代码如下:static struct i2c_board_info __initdata ek_i2c_devices[] = {
{
I2C_BOARD_INFO（"24c512", 0x50）,
.platform_data = &at24c512,
},
{
I2C_BOARD_INFO（"pcf8563", 0x51）,
},
};