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-rw-r--r--board/exmeritus/hww1u1a/ddr.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/board/exmeritus/hww1u1a/ddr.c b/board/exmeritus/hww1u1a/ddr.c
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+/*
+ * Copyright 2009-2010 eXMeritus, A Boeing Company
+ * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_ddr_dimm_params.h>
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+ dimm_params_t *pdimm,
+ unsigned int ctrl_num)
+{
+ /*
+ * We only support one DIMM, so according to the P2020 docs we should
+ * set the options as follows:
+ */
+ popts->cs_local_opts[0].odt_rd_cfg = 0;
+ popts->cs_local_opts[0].odt_wr_cfg = 4;
+ popts->cs_local_opts[1].odt_rd_cfg = 0;
+ popts->cs_local_opts[1].odt_wr_cfg = 0;
+ popts->half_strength_driver_enable = 0;
+
+ /* Manually configured for our static clock rate */
+ popts->clk_adjust = 4;
+ popts->cpo_override = 4;
+ popts->write_data_delay = 2;
+ popts->twoT_en = 0;
+}