GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/freescale/ls2080ardb/ddr.h

@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ */
+
+#ifndef __DDR_H__
+#define __DDR_H__
+struct board_specific_parameters {
+	u32 n_ranks;
+	u32 datarate_mhz_high;
+	u32 rank_gb;
+	u32 clk_adjust;
+	u32 wrlvl_start;
+	u32 wrlvl_ctl_2;
+	u32 wrlvl_ctl_3;
+};
+
+/*
+ * These tables contain all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ */
+
+static const struct board_specific_parameters udimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 8,     6, 0x0708090B, 0x0C0D0E09,},
+	{2,  1666, 0, 10,    9, 0x090A0B0E, 0x0F11110C,},
+	{2,  1900, 0, 12,  0xA, 0x0B0C0E11, 0x1214140F,},
+	{2,  2300, 0, 12,  0xB, 0x0C0D0F12, 0x14161610,},
+	{}
+};
+
+/* DP-DDR DIMM */
+static const struct board_specific_parameters udimm2[] = {
+	/*
+	 * memory controller 2
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 8,   0xd, 0x0C0A0A00, 0x00000009,},
+	{2,  1666, 0, 8,   0xd, 0x0C0A0A00, 0x00000009,},
+	{2,  1900, 0, 8,   0xe, 0x0D0C0B00, 0x0000000A,},
+	{2,  2200, 0, 8,   0xe, 0x0D0C0B00, 0x0000000A,},
+	{}
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1666, 0, 8,     0x0F, 0x0D0C0A09, 0x0B0C0E08,},
+	{2,  1900, 0, 8,     0x10, 0x0F0D0B0A, 0x0B0E0F09,},
+	{2,  2200, 0, 8,     0x13, 0x120F0E0B, 0x0D10110B,},
+	{}
+};
+
+static const struct board_specific_parameters *udimms[] = {
+	udimm0,
+	udimm0,
+	udimm2,
+};
+
+static const struct board_specific_parameters *rdimms[] = {
+	rdimm0,
+	rdimm0,
+	udimm2,	/* DP-DDR doesn't support RDIMM */
+};
+
+
+#endif