Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 258 insertions, 0 deletions

diff --git a/roms/u-boot/board/freescale/t102xrdb/ddr.c b/roms/u-boot/board/freescale/t102xrdb/ddr.c
new file mode 100644
index 000000000..818c20cf1
--- /dev/null
+++ b/roms/u-boot/board/freescale/t102xrdb/ddr.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <hwconfig.h>
+#include <init.h>
+#include <log.h>
+#include <asm/global_data.h>
+#include <asm/mmu.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+#include <asm/fsl_law.h>
+#include <asm/mpc85xx_gpio.h>
+#include <linux/delay.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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;
+};
+
+/*
+ * datarate_mhz_high values need to be in ascending order
+ */
+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,  833,   0,  8,  6,  0x06060607,  0x08080807,},
+	{2,  1350,  0,  8,  7,  0x0708080A,  0x0A0B0C09,},
+	{2,  1666,  0,  8,  7,  0x0808090B,  0x0C0D0E0A,},
+	{1,  833,   0,  8,  6,  0x06060607,  0x08080807,},
+	{1,  1350,  0,  8,  7,  0x0708080A,  0x0A0B0C09,},
+	{1,  1666,  0,  8,  7,  0x0808090B,  0x0C0D0E0A,},
+	{}
+};
+
+static const struct board_specific_parameters *udimms[] = {
+	udimm0,
+};
+
+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;
+	struct cpu_type *cpu = gd->arch.cpu;
+
+	if (ctrl_num > 1) {
+		printf("Not supported controller number %d\n", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		return;
+
+	pbsp = udimms[0];
+
+	/* Get clk_adjust 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 &&
+		    (pdimm->rank_density >> 30) >= pbsp->rank_gb) {
+			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\n");
+		printf("for data rate %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",
+	      pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb);
+	debug("\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, ",
+	      pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2);
+	debug("wrlvl_ctrl_3 0x%x\n", pbsp->wrlvl_ctl_3);
+
+	/*
+	 * Factors to consider for half-strength driver enable:
+	 *	- number of DIMMs installed
+	 */
+	popts->half_strength_driver_enable = 0;
+	/*
+	 * Write leveling override
+	 */
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+
+	/*
+	 * rtt and rtt_wr override
+	 */
+	popts->rtt_override = 0;
+
+	/* Enable ZQ calibration */
+	popts->zq_en = 1;
+
+	/* DHC_EN =1, ODT = 75 Ohm */
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_OFF);
+	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_OFF);
+
+	/* T1023 supports max DDR bus 32bit width, T1024 supports DDR 64bit,
+	 * force DDR bus width to 32bit for T1023
+	 */
+	if (cpu->soc_ver == SVR_T1023)
+		popts->data_bus_width = DDR_DATA_BUS_WIDTH_32;
+
+#ifdef CONFIG_FORCE_DDR_DATA_BUS_WIDTH_32
+	/* for DDR bus 32bit test on T1024 */
+	popts->data_bus_width = DDR_DATA_BUS_WIDTH_32;
+#endif
+
+#ifdef CONFIG_TARGET_T1023RDB
+	popts->wrlvl_ctl_2 = 0x07070606;
+	popts->half_strength_driver_enable = 1;
+	popts->cpo_sample = 0x43;
+#elif defined(CONFIG_TARGET_T1024RDB)
+	/* optimize cpo for erratum A-009942 */
+	popts->cpo_sample = 0x52;
+#endif
+}
+
+#ifdef CONFIG_SYS_DDR_RAW_TIMING
+/* 2GB discrete DDR4 MT40A512M8HX on T1023RDB */
+dimm_params_t ddr_raw_timing = {
+	.n_ranks = 1,
+	.rank_density = 0x80000000,
+	.capacity = 0x80000000,
+	.primary_sdram_width = 32,
+	.ec_sdram_width = 8,
+	.registered_dimm = 0,
+	.mirrored_dimm = 0,
+	.n_row_addr = 15,
+	.n_col_addr = 10,
+	.bank_addr_bits = 2,
+	.bank_group_bits = 2,
+	.edc_config = 0,
+	.burst_lengths_bitmask = 0x0c,
+	.tckmin_x_ps = 938,
+	.tckmax_ps = 1500,
+	.caslat_x = 0x000DFA00,
+	.taa_ps = 13500,
+	.trcd_ps = 13500,
+	.trp_ps = 13500,
+	.tras_ps = 33000,
+	.trc_ps = 46500,
+	.trfc1_ps = 260000,
+	.trfc2_ps = 160000,
+	.trfc4_ps = 110000,
+	.tfaw_ps = 25000,
+	.trrds_ps = 3700,
+	.trrdl_ps = 5300,
+	.tccdl_ps = 5355,
+	.refresh_rate_ps = 7800000,
+	.dq_mapping[0] = 0x0,
+	.dq_mapping[1] = 0x0,
+	.dq_mapping[2] = 0x0,
+	.dq_mapping[3] = 0x0,
+	.dq_mapping[4] = 0x0,
+	.dq_mapping[5] = 0x0,
+	.dq_mapping[6] = 0x0,
+	.dq_mapping[7] = 0x0,
+	.dq_mapping[8] = 0x0,
+	.dq_mapping[9] = 0x0,
+	.dq_mapping[10] = 0x0,
+	.dq_mapping[11] = 0x0,
+	.dq_mapping[12] = 0x0,
+	.dq_mapping[13] = 0x0,
+	.dq_mapping[14] = 0x0,
+	.dq_mapping[15] = 0x0,
+	.dq_mapping[16] = 0x0,
+	.dq_mapping[17] = 0x0,
+	.dq_mapping_ors = 1,
+};
+
+int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
+		unsigned int controller_number,
+		unsigned int dimm_number)
+{
+	const char dimm_model[] = "Fixed DDR4 on board";
+
+	if (((controller_number == 0) && (dimm_number == 0)) ||
+	    ((controller_number == 1) && (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;
+}
+#endif
+
+#if defined(CONFIG_DEEP_SLEEP)
+void board_mem_sleep_setup(void)
+{
+	void __iomem *cpld_base = (void *)CONFIG_SYS_CPLD_BASE;
+
+	/* does not provide HW signals for power management */
+	clrbits_8(cpld_base + 0x17, 0x40);
+	/* Disable MCKE isolation */
+	gpio_set_value(2, 0);
+	udelay(1);
+}
+#endif
+
+int dram_init(void)
+{
+	phys_size_t dram_size;
+
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_RAMBOOT_PBL)
+#ifndef CONFIG_SYS_DDR_RAW_TIMING
+	puts("Initializing....using SPD\n");
+#endif
+	dram_size = fsl_ddr_sdram();
+#else
+	/* DDR has been initialised by first stage boot loader */
+	dram_size =  fsl_ddr_sdram_size();
+#endif
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
+
+#if defined(CONFIG_DEEP_SLEEP) && !defined(CONFIG_SPL_BUILD)
+	fsl_dp_resume();
+#endif
+
+	gd->ram_size = dram_size;
+
+	return 0;
+}