From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/board/freescale/ls1088a/ddr.c | 138 ++++++++++++++++++++++++++++++
1 file changed, 138 insertions(+)
create mode 100644 roms/u-boot/board/freescale/ls1088a/ddr.c
(limited to 'roms/u-boot/board/freescale/ls1088a/ddr.c')
diff --git a/roms/u-boot/board/freescale/ls1088a/ddr.c b/roms/u-boot/board/freescale/ls1088a/ddr.c
new file mode 100644
index 000000000..995c42960
--- /dev/null
+++ b/roms/u-boot/board/freescale/ls1088a/ddr.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2017 NXP
+ */
+
+#include <common.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+#include <log.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/clock.h>
+#include <asm/global_data.h>
+#include "ddr.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_VID) && (!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
+static void fsl_ddr_setup_0v9_volt(memctl_options_t *popts)
+{
+ int vdd;
+
+ vdd = get_core_volt_from_fuse();
+ /* Nothing to do for silicons doesn't support VID */
+ if (vdd < 0)
+ return;
+
+ if (vdd == 900) {
+ popts->ddr_cdr1 |= DDR_CDR1_V0PT9_EN;
+ debug("VID: configure DDR to support 900 mV\n");
+ }
+}
+#endif
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+ dimm_params_t *pdimm,
+ unsigned int ctrl_num)
+{
+ const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
+ ulong ddr_freq;
+
+ if (ctrl_num > 1) {
+ printf("Not supported controller number %d\n", ctrl_num);
+ return;
+ }
+ if (!pdimm->n_ranks)
+ return;
+
+ /*
+ * we use identical timing for all slots. If needed, change the code
+ * to pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num];
+ */
+ pbsp = udimms[0];
+
+ /* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr
+ * freqency and n_banks specified in board_specific_parameters table.
+ */
+ ddr_freq = get_ddr_freq(0) / 1000000;
+ while (pbsp->datarate_mhz_high) {
+ if (pbsp->n_ranks == pdimm->n_ranks) {
+ if (ddr_freq <= pbsp->datarate_mhz_high) {
+ popts->clk_adjust = pbsp->clk_adjust;
+ popts->wrlvl_start = pbsp->wrlvl_start;
+ popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2;
+ popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3;
+ goto found;
+ }
+ pbsp_highest = pbsp;
+ }
+ pbsp++;
+ }
+
+ if (pbsp_highest) {
+ printf("Error: board specific timing not found for %lu MT/s\n",
+ ddr_freq);
+ printf("Trying to use the highest speed (%u) parameters\n",
+ pbsp_highest->datarate_mhz_high);
+ popts->clk_adjust = pbsp_highest->clk_adjust;
+ popts->wrlvl_start = pbsp_highest->wrlvl_start;
+ popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2;
+ popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3;
+ } else {
+ panic("DIMM is not supported by this board");
+ }
+found:
+ debug("Found timing match: n_ranks %d, data rate %d, rank_gb %d\n"
+ "\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, wrlvl_ctrl_3 0x%x\n",
+ pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb,
+ pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2,
+ pbsp->wrlvl_ctl_3);
+
+
+
+ popts->half_strength_driver_enable = 0;
+ /*
+ * Write leveling override
+ */
+ popts->wrlvl_override = 1;
+ popts->wrlvl_sample = 0xf;
+
+
+ /* Enable ZQ calibration */
+ popts->zq_en = 1;
+
+ /* Enable DDR hashing */
+ popts->addr_hash = 1;
+
+ popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_60ohm);
+#if defined(CONFIG_VID) && (!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
+ fsl_ddr_setup_0v9_volt(popts);
+#endif
+
+ popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_60ohm) |
+ DDR_CDR2_VREF_TRAIN_EN | DDR_CDR2_VREF_RANGE_2;
+}
+
+#ifdef CONFIG_TFABOOT
+int fsl_initdram(void)
+{
+ gd->ram_size = tfa_get_dram_size();
+
+ if (!gd->ram_size)
+ gd->ram_size = fsl_ddr_sdram_size();
+
+ return 0;
+}
+#else
+int fsl_initdram(void)
+{
+ puts("Initializing DDR....using SPD\n");
+
+#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
+ gd->ram_size = fsl_ddr_sdram_size();
+#else
+ gd->ram_size = fsl_ddr_sdram();
+#endif
+ return 0;
+}
+#endif /* CONFIG_TFABOOT */
--
cgit