From d46d79c6b42562022a70793c0c41739608c45c93 Mon Sep 17 00:00:00 2001 From: Adrian Alonso <adrian.alonso@nxp.com> Date: Tue, 29 Nov 2016 13:30:10 -0600 Subject: [PATCH] MLK-13551: mx6ull: evk: lpddr2: add pre charge command all LPDDR2 script IMX6ULL_9X9_LPDDR2_400MHz_16bit_V1.2.inc Updated to add precharge all command per JEDEC The memory controller may optionally issue a precharge-all command prior to the MRW reset command This is strongly recommended to ensure robust DRAM initialization Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> (Cherry pick from commit 977a06025b97569fdd43781961b3f90344eab737) --- board/freescale/mx6ullevk/imximage_lpddr2.cfg | 1 + board/freescale/mx6ullevk/plugin.S | 2 ++ 2 files changed, 3 insertions(+) diff --git a/board/freescale/mx6ullevk/imximage_lpddr2.cfg b/board/freescale/mx6ullevk/imximage_lpddr2.cfg index dedabfceff..fe82cac76f 100644 --- a/board/freescale/mx6ullevk/imximage_lpddr2.cfg +++ b/board/freescale/mx6ullevk/imximage_lpddr2.cfg @@ -105,6 +105,7 @@ DATA 4 0x021B002C 0x0F9F26D2 DATA 4 0x021B0030 0x009F0010 DATA 4 0x021B0040 0x00000047 DATA 4 0x021B0000 0x83100000 +DATA 4 0x021B001C 0x00008050 DATA 4 0x021B001C 0x003F8030 DATA 4 0x021B001C 0xFF0A8030 DATA 4 0x021B001C 0x82018030 diff --git a/board/freescale/mx6ullevk/plugin.S b/board/freescale/mx6ullevk/plugin.S index 0c303fba6e..f3d516330f 100644 --- a/board/freescale/mx6ullevk/plugin.S +++ b/board/freescale/mx6ullevk/plugin.S @@ -204,6 +204,8 @@ str r1, [r0, #0x040] ldr r1, =0x83100000 str r1, [r0, #0x000] + ldr r1, =0x00008050 + str r1, [r0, #0x01C] ldr r1, =0x003F8030 str r1, [r0, #0x01C] ldr r1, =0xFF0A8030 -- GitLab