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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2022 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+
+#include <common/debug.h>
+#include <ddr.h>
+#include <utils.h>
+
+#include <errata.h>
+#include <platform_def.h>
+
+#ifdef CONFIG_STATIC_DDR
+#error No static value defined
+#endif
+
+static const struct rc_timing rce[] = {
+	{U(1600), U(8), U(8)},
+	{U(1867), U(8), U(8)},
+	{U(2134), U(8), U(9)},
+	{}
+};
+
+static const struct board_timing udimm[] = {
+	{U(0x04), rce, U(0x01030508), U(0x090b0d06)},
+	{U(0x1f), rce, U(0x01030508), U(0x090b0d06)},
+};
+
+int ddr_board_options(struct ddr_info *priv)
+{
+	int ret;
+	struct memctl_opt *popts = &priv->opt;
+
+	if (popts->rdimm != 0) {
+		debug("RDIMM parameters not set.\n");
+		return -EINVAL;
+	}
+
+	ret = cal_board_params(priv, udimm, ARRAY_SIZE(udimm));
+	if (ret != 0) {
+		return ret;
+	}
+
+	popts->addr_hash = 1;
+	popts->cpo_sample = U(0x7b);
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN	|
+			  DDR_CDR1_ODT(DDR_CDR_ODT_60ohm);
+	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_60ohm)	|
+			  DDR_CDR2_VREF_TRAIN_EN		|
+			  DDR_CDR2_VREF_RANGE_2;
+
+	return 0;
+}
+
+long long init_ddr(void)
+{
+	int spd_addr[] = { NXP_SPD_EEPROM0 };
+	struct ddr_info info;
+	struct sysinfo sys;
+	long long dram_size;
+
+	zeromem(&sys, sizeof(sys));
+	get_clocks(&sys);
+	debug("platform clock %lu\n", sys.freq_platform);
+	debug("DDR PLL %lu\n", sys.freq_ddr_pll0);
+
+	zeromem(&info, sizeof(struct ddr_info));
+	info.num_ctlrs = NUM_OF_DDRC;
+	info.dimm_on_ctlr = DDRC_NUM_DIMM;
+	info.clk = get_ddr_freq(&sys, 0);
+	info.spd_addr = spd_addr;
+	info.ddr[0] = (void *)NXP_DDR_ADDR;
+
+	dram_size = dram_init(&info);
+
+	if (dram_size < 0) {
+		ERROR("DDR init failed.\n");
+	}
+
+	return dram_size;
+}