1 From e9ff0d26c61f8999a3f48b78538eae0b072ce4c6 Mon Sep 17 00:00:00 2001
2 From: Lily Zhang <r58066@freescale.com>
3 Date: Sat, 19 Dec 2009 16:48:58 +0800
4 Subject: [PATCH] ENGR00119505 MX51 BBG: Change DDR2 settings
6 1. Change the drive strength of DRAM PAD as high
7 2. Change ESDCFG setting
9 Signed-off-by: Lily Zhang <r58066@freescale.com>
11 board/freescale/mx51_bbg/flash_header.S | 12 ++++++------
12 1 files changed, 6 insertions(+), 6 deletions(-)
14 diff --git a/board/freescale/mx51_bbg/flash_header.S b/board/freescale/mx51_bbg/flash_header.S
15 index 17a5c59..2f860b8 100644
16 --- a/board/freescale/mx51_bbg/flash_header.S
17 +++ b/board/freescale/mx51_bbg/flash_header.S
18 @@ -65,17 +65,17 @@ MXC_DCD_ITEM(16, 4, IOMUXC_BASE_ADDR + 0x4b4, 0xe3)
19 MXC_DCD_ITEM(17, 4, IOMUXC_BASE_ADDR + 0x4cc, 0xe3)
20 MXC_DCD_ITEM(18, 4, IOMUXC_BASE_ADDR + 0x4d0, 0xe2)
21 /* Set drive strength to MAX */
22 -MXC_DCD_ITEM(19, 4, IOMUXC_BASE_ADDR + 0x82c, 0x6)
23 -MXC_DCD_ITEM(20, 4, IOMUXC_BASE_ADDR + 0x8a4, 0x6)
24 -MXC_DCD_ITEM(21, 4, IOMUXC_BASE_ADDR + 0x8ac, 0x6)
25 -MXC_DCD_ITEM(22, 4, IOMUXC_BASE_ADDR + 0x8b8, 0x6)
26 +MXC_DCD_ITEM(19, 4, IOMUXC_BASE_ADDR + 0x82c, 0x4)
27 +MXC_DCD_ITEM(20, 4, IOMUXC_BASE_ADDR + 0x8a4, 0x4)
28 +MXC_DCD_ITEM(21, 4, IOMUXC_BASE_ADDR + 0x8ac, 0x4)
29 +MXC_DCD_ITEM(22, 4, IOMUXC_BASE_ADDR + 0x8b8, 0x4)
30 /* 13 ROW, 10 COL, 32Bit, SREF=4 Micron Model */
32 MXC_DCD_ITEM(23, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCTL0, 0x82a20000)
33 MXC_DCD_ITEM(24, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCTL1, 0x82a20000)
34 MXC_DCD_ITEM(25, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDMISC, 0x000ad0d0)
35 -MXC_DCD_ITEM(26, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCFG0, 0x333574aa)
36 -MXC_DCD_ITEM(27, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCFG1, 0x333574aa)
37 +MXC_DCD_ITEM(26, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCFG0, 0x333584ab)
38 +MXC_DCD_ITEM(27, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDCFG1, 0x333584ab)
39 /* Init DRAM on CS0 */
40 MXC_DCD_ITEM(28, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDSCR, 0x04008008)
41 MXC_DCD_ITEM(29, 4, ESDCTL_BASE_ADDR + ESDCTL_ESDSCR, 0x0000801a)