LS1X_RTC_BASE 12 arch/mips/include/asm/mach-loongson32/regs-rtc.h ((void __iomem *)KSEG1ADDR(LS1X_RTC_BASE + (x))) LS1X_RTC_BASE 18 drivers/rtc/rtc-ls1x.c #define LS1X_RTC_REG_OFFSET (LS1X_RTC_BASE + 0x20)