1 files changed, 97 insertions, 0 deletions
diff --git a/board/freescale/p1010rdb/ddr.c b/board/freescale/p1010rdb/ddr.c
new file mode 100644
index 00000000000..43a0936bc9a
--- /dev/null
+++ b/board/freescale/p1010rdb/ddr.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ */
+
+#include <vsprintf.h>
+#include <asm/global_data.h>
+#include <asm/mmu.h>
+#include <asm/immap_85xx.h>
+#include <asm/processor.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+#include <asm/io.h>
+#include <asm/fsl_law.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Samsung K4B2G0846C-HCF8
+ * The following timing are for "downshift"
+ * i.e. to use CL9 part as CL7
+ * otherwise, tAA, tRCD, tRP will be 13500ps
+ * and tRC will be 49500ps
+ */
+dimm_params_t ddr_raw_timing = {
+	.n_ranks = 1,
+	.rank_density = 1073741824u,
+	.capacity = 1073741824u,
+	.primary_sdram_width = 32,
+	.ec_sdram_width = 0,
+	.registered_dimm = 0,
+	.mirrored_dimm = 0,
+	.n_row_addr = 15,
+	.n_col_addr = 10,
+	.n_banks_per_sdram_device = 8,
+	.edc_config = 0,
+	.burst_lengths_bitmask = 0x0c,
+
+	.tckmin_x_ps = 1875,
+	.caslat_x = 0x1e << 4,	/* 5,6,7,8 */
+	.taa_ps = 13125,
+	.twr_ps = 15000,
+	.trcd_ps = 13125,
+	.trrd_ps = 7500,
+	.trp_ps = 13125,
+	.tras_ps = 37500,
+	.trc_ps = 50625,
+	.trfc_ps = 160000,
+	.twtr_ps = 7500,
+	.trtp_ps = 7500,
+	.refresh_rate_ps = 7800000,
+	.tfaw_ps = 37500,
+};
+
+int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
+		unsigned int controller_number,
+		unsigned int dimm_number)
+{
+	const char dimm_model[] = "Fixed DDR on board";
+
+	if ((controller_number == 0) && (dimm_number == 0)) {
+		memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
+		memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
+		memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
+	}
+
+	return 0;
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+				dimm_params_t *pdimm,
+				unsigned int ctrl_num)
+{
+	struct cpu_type *cpu;
+	int i;
+	popts->clk_adjust = 6;
+	popts->cpo_override = 0x1f;
+	popts->write_data_delay = 2;
+	popts->half_strength_driver_enable = 1;
+	/* Write leveling override */
+	popts->wrlvl_en = 1;
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+	popts->wrlvl_start = 0x8;
+	popts->trwt_override = 1;
+	popts->trwt = 0;
+
+	cpu = gd->arch.cpu;
+	/* P1014 and it's derivatives support max 16it DDR width */
+	if (cpu->soc_ver == SVR_P1014)
+		popts->data_bus_width = DDR_DATA_BUS_WIDTH_16;
+
+	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
+		popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
+		popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
+	}
+}