Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / freescale / mpc8560ads / ddr.c

diff --git a/qemu/roms/u-boot/board/freescale/mpc8560ads/ddr.c b/qemu/roms/u-boot/board/freescale/mpc8560ads/ddr.c
new file mode 100644 (file)
index 0000000..41d4cfe
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/mpc8560ads/ddr.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2008 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 <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+                               dimm_params_t *pdimm,
+                               unsigned int ctrl_num)
+{
+       /*
+        * Factors to consider for CPO:
+        *      - frequency
+        *      - ddr1 vs. ddr2
+        */
+       popts->cpo_override = 0;
+
+       /*
+        * Factors to consider for write data delay:
+        *      - number of DIMMs
+        *
+        * 1 = 1/4 clock delay
+        * 2 = 1/2 clock delay
+        * 3 = 3/4 clock delay
+        * 4 = 1   clock delay
+        * 5 = 5/4 clock delay
+        * 6 = 3/2 clock delay
+        */
+       popts->write_data_delay = 3;
+
+       /* 2T timing enable */
+       popts->twot_en = 1;
+
+       /*
+        * Factors to consider for half-strength driver enable:
+        *      - number of DIMMs installed
+        */
+       popts->half_strength_driver_enable = 0;
+}