SDRAM_TREF         83 drivers/clk/pxa/clk-pxa25x.c 	u32 interval = freq_khz * SDRAM_TREF / get_sdram_rows();
SDRAM_TREF         87 drivers/clk/pxa/clk-pxa27x.c 	u32 interval = freq_khz * SDRAM_TREF / get_sdram_rows();