Add a function in SFR implementation that will open the DDR input buffers. This can be called at DRAM initialization time. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
@@ -29,3 +29,14 @@ void configure_2nd_sram_as_l2_cache(void)
}
#endif
+void configure_ddrcfg_input_buffers(bool open)
+{
+ struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+
+ if (open)
+ writel(ATMEL_SFR_DDRCFG_FDQIEN | ATMEL_SFR_DDRCFG_FDQSIEN,
+ &sfr->ddrcfg);
+ else
+ writel(0, &sfr->ddrcfg);
+}
@@ -35,6 +35,9 @@ void at91_disable_wdt(void);
void matrix_init(void);
void redirect_int_from_saic_to_aic(void);
void configure_2nd_sram_as_l2_cache(void);
+#ifdef CONFIG_ATMEL_SFR
+void configure_ddrcfg_input_buffers(bool open);
+#endif
int at91_set_ethaddr(int offset);
int at91_video_show_board_info(void);