armv8: ls2088ardb: Add 3DS RDIMM support

Tested with MTA72ASS8G72PSZ-2S6G1. This is 3DS RDIMM module with x4
DDR chips. LS2088ARDB needs to be modified to connect all DQS signals.
Some of them are grounded by default for x8 chips. Tested with RDIMM
MTA18ASF2G72PDZ on main memory controllers. DP-DDR doesn't support
RDIMM. Dropped related timing table.

Signed-off-by: York Sun <york.sun@nxp.com>

diff --git a/board/freescale/ls2080ardb/ddr.c b/board/freescale/ls2080ardb/ddr.c
index 01f7d82fb6b08adbfded8f11f65ac18009c0e389..b13a974b6e54320c0868609a146c5518bc7dba75 100644 (file)
--- a/board/freescale/ls2080ardb/ddr.c
+++ b/board/freescale/ls2080ardb/ddr.c
@@ -85,6 +85,8 @@ found:
                pbsp->wrlvl_ctl_3);
 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
        if (ctrl_num == CONFIG_DP_DDR_CTRL) {
+               if (popts->registered_dimm_en)
+                       printf("WARN: RDIMM not supported.\n");
                /* force DDR bus width to 32 bits */
                popts->data_bus_width = 1;
                popts->otf_burst_chop_en = 0;

diff --git a/board/freescale/ls2080ardb/ddr.h b/board/freescale/ls2080ardb/ddr.h
index 8d5a49061ce95ef4d421635b0d479141cef977d9..53c16f54f7728f221de9561345d413068b824b1e 100644 (file)
--- a/board/freescale/ls2080ardb/ddr.h
+++ b/board/freescale/ls2080ardb/ddr.h
@@ -55,24 +55,9 @@ static const struct board_specific_parameters rdimm0[] = {
         *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
         * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
         */
-       {2,  1350, 0, 8,     6, 0x0708090B, 0x0C0D0E09,},
-       {2,  1666, 0, 8,     7, 0x08090A0C, 0x0D0F100B,},
-       {2,  1900, 0, 8,     7, 0x09090B0D, 0x0E10120B,},
-       {2,  2200, 0, 8,     8, 0x090A0C0F, 0x1012130C,},
-       {}
-};
-
-/* 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
-        */
-       {2,  1350, 0, 8,     6, 0x0708090B, 0x0C0D0E09,},
-       {2,  1666, 0, 8,     7, 0x0B0A090C, 0x0D0F100B,},
-       {2,  1900, 0, 8,     7, 0x09090B0D, 0x0E10120B,},
-       {2,  2200, 0, 8,     8, 0x090A0C0F, 0x1012130C,},
+       {2,  1666, 0, 8,     0x0F, 0x0D0C0A09, 0x0B0C0E08,},
+       {2,  1900, 0, 8,     0x10, 0x0F0D0B0A, 0x0B0E0F09,},
+       {2,  2200, 0, 8,     0x13, 0x120F0E0B, 0x0D10110B,},
        {}
 };
 
@@ -85,7 +70,7 @@ static const struct board_specific_parameters *udimms[] = {
 static const struct board_specific_parameters *rdimms[] = {
        rdimm0,
        rdimm0,
-       rdimm2,
+       udimm2, /* DP-DDR doesn't support RDIMM */
 };