From fac0991970b49ecae83129ecc355b71d8d54a1fb Mon Sep 17 00:00:00 2001 From: Adrian Alonso <adrian.alonso@nxp.com> Date: Tue, 29 Nov 2016 11:41:25 -0600 Subject: [PATCH] MLK-13540-2: mx6sx: arm2: lpddr2: add pre charge command all LPDDR2 script MX6SX_19x19_LPDDR2_JEDEC.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> --- board/freescale/mx6sx_19x19_arm2/imximage_lpddr2.cfg | 2 ++ board/freescale/mx6sx_19x19_arm2/plugin.S | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/board/freescale/mx6sx_19x19_arm2/imximage_lpddr2.cfg b/board/freescale/mx6sx_19x19_arm2/imximage_lpddr2.cfg index 5488d220a5..e374fa5efc 100644 --- a/board/freescale/mx6sx_19x19_arm2/imximage_lpddr2.cfg +++ b/board/freescale/mx6sx_19x19_arm2/imximage_lpddr2.cfg @@ -119,12 +119,14 @@ DATA 4 0x021b0008 0x00000000 DATA 4 0x021b0040 0x0000004f DATA 4 0x021b0000 0xc3110000 +DATA 4 0x021b001c 0x00008050 DATA 4 0x021b001c 0x003f8030 DATA 4 0x021b001c 0xff0a8030 DATA 4 0x021b001c 0x82018030 DATA 4 0x021b001c 0x04028030 DATA 4 0x021b001c 0x01038030 +DATA 4 0x021b001c 0x00008058 DATA 4 0x021b001c 0x003f8038 DATA 4 0x021b001c 0xff0a8038 DATA 4 0x021b001c 0x82018038 diff --git a/board/freescale/mx6sx_19x19_arm2/plugin.S b/board/freescale/mx6sx_19x19_arm2/plugin.S index b5387a1170..99456ccde2 100644 --- a/board/freescale/mx6sx_19x19_arm2/plugin.S +++ b/board/freescale/mx6sx_19x19_arm2/plugin.S @@ -220,6 +220,8 @@ ldr r2, =0xc3110000 str r2, [r0, #0x000] + ldr r2, =0x00008050 + str r2, [r0, #0x01c] ldr r2, =0x003f8030 str r2, [r0, #0x01c] ldr r2, =0xff0a8030 @@ -231,6 +233,8 @@ ldr r2, =0x01038030 str r2, [r0, #0x01c] + ldr r2, =0x00008058 + str r2, [r0, #0x01c] ldr r2, =0x003f8038 str r2, [r0, #0x01c] ldr r2, =0xff0a8038 -- GitLab