ARMv8/ls2085a_emu: Enable DP-DDR as standalone memory block

DP-DDR is used for DPAA, separated from main memory pool for general
use. It has 32-bit bus width and use a standard DDR4 DIMM (64-bit).

Signed-off-by: York Sun <yorksun@freescale.com>

3 files changed, 73 insertions, 3 deletions

diff --git a/board/freescale/ls2085a/ddr.c b/board/freescale/ls2085a/ddr.c
index 257bc162d0..b4a3fc9a9e 100644
--- a/board/freescale/ls2085a/ddr.c
+++ b/board/freescale/ls2085a/ddr.c
@@ -30,9 +30,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 * to  pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num];
 	 */
 	if (popts->registered_dimm_en)
-		pbsp = rdimms[0];
+		pbsp = rdimms[ctrl_num];
 	else
-		pbsp = udimms[0];
+		pbsp = udimms[ctrl_num];
 
 
 	/* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr
@@ -72,6 +72,12 @@ found:
 		pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2,
 		pbsp->wrlvl_ctl_3);
 
+	if (ctrl_num == CONFIG_DP_DDR_CTRL) {
+		/* force DDR bus width to 32 bits */
+		popts->data_bus_width = 1;
+		popts->otf_burst_chop_en = 0;
+		popts->burst_length = DDR_BL8;
+	}
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
@@ -163,6 +169,10 @@ phys_size_t initdram(int board_type)
 
 void dram_init_banksize(void)
 {
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+	phys_size_t dp_ddr_size;
+#endif
+
 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 	if (gd->ram_size > CONFIG_SYS_LS2_DDR_BLOCK1_SIZE) {
 		gd->bd->bi_dram[0].size = CONFIG_SYS_LS2_DDR_BLOCK1_SIZE;
@@ -172,4 +182,24 @@ void dram_init_banksize(void)
 	} else {
 		gd->bd->bi_dram[0].size = gd->ram_size;
 	}
+
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+	/* initialize DP-DDR here */
+	puts("DP-DDR:  ");
+	/*
+	 * DDR controller use 0 as the base address for binding.
+	 * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
+	 */
+	dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
+					  CONFIG_DP_DDR_CTRL,
+					  CONFIG_DP_DDR_NUM_CTRLS,
+					  CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
+					  NULL, NULL, NULL);
+	if (dp_ddr_size) {
+		gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
+		gd->bd->bi_dram[2].size = dp_ddr_size;
+	} else {
+		puts("Not detected");
+	}
+#endif
 }
diff --git a/board/freescale/ls2085a/ddr.h b/board/freescale/ls2085a/ddr.h
index 77f6aafe3d..9958a68e3e 100644
--- a/board/freescale/ls2085a/ddr.h
+++ b/board/freescale/ls2085a/ddr.h
@@ -33,6 +33,18 @@ static const struct board_specific_parameters udimm0[] = {
 	{}
 };
 
+/* 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,  2140, 0, 4,     4, 0x0, 0x0},
+	{1,  2140, 0, 4,     4, 0x0, 0x0},
+	{}
+};
+
 static const struct board_specific_parameters rdimm0[] = {
 	/*
 	 * memory controller 0
@@ -45,12 +57,29 @@ static const struct board_specific_parameters rdimm0[] = {
 	{}
 };
 
+/* DP-DDR DIMM */
+static const struct board_specific_parameters rdimm2[] = {
+	/*
+	 * memory controller 2
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{4,  2140, 0, 5,     4, 0x0, 0x0},
+	{2,  2140, 0, 5,     4, 0x0, 0x0},
+	{1,  2140, 0, 4,     4, 0x0, 0x0},
+	{}
+};
+
 static const struct board_specific_parameters *udimms[] = {
 	udimm0,
+	udimm0,
+	udimm2,
 };
 
 static const struct board_specific_parameters *rdimms[] = {
 	rdimm0,
+	rdimm0,
+	rdimm2,
 };
 
 
diff --git a/board/freescale/ls2085a/ls2085a.c b/board/freescale/ls2085a/ls2085a.c
index d19f692e07..c2a726b76e 100644
--- a/board/freescale/ls2085a/ls2085a.c
+++ b/board/freescale/ls2085a/ls2085a.c
@@ -35,9 +35,20 @@ int board_early_init_f(void)
 	return 0;
 }
 
+void detail_board_ddr_info(void)
+{
+	puts("\nDDR    ");
+	print_size(gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size, "");
+	print_ddr_info(0);
+	if (gd->bd->bi_dram[2].size) {
+		puts("\nDP-DDR ");
+		print_size(gd->bd->bi_dram[2].size, "");
+		print_ddr_info(CONFIG_DP_DDR_CTRL);
+	}
+}
+
 int dram_init(void)
 {
-	printf("DRAM:  ");
 	gd->ram_size = initdram(0);
 
 	return 0;