From 8b6c309e5e55670f429730449d9921987636c8ec Mon Sep 17 00:00:00 2001 From: Calvin Johnson Date: Wed, 8 Jun 2016 17:04:58 +0530 Subject: [PATCH 67/93] armv8: ls1012a: DDR optmizations Enable DDR row-bank-column decoding. DDR address will be decoded as row-bank-column instead of bank-row-column. This will improve performance of serial data transfers. Refresh cycle value must be selected based on the frequency of DDR. tREFI = 7.8 us as per JEDEC. The value for MDREF[REF_CNT] should be based on round up (tREFI/tCK) formula. For 500MHz, mdref value should be 0x0f3c8000. Signed-off-by: Calvin Johnson --- board/freescale/ls1012afrdm/ls1012afrdm.c | 4 ++-- board/freescale/ls1012aqds/ls1012aqds.c | 4 ++-- board/freescale/ls1012ardb/ls1012ardb.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/board/freescale/ls1012afrdm/ls1012afrdm.c b/board/freescale/ls1012afrdm/ls1012afrdm.c index c691a76..4b7902a 100644 --- a/board/freescale/ls1012afrdm/ls1012afrdm.c +++ b/board/freescale/ls1012afrdm/ls1012afrdm.c @@ -59,7 +59,7 @@ void mmdc_init(void) out_be32(&mmdc->mdcfg2, 0x01ff00db); /* other parms */ - out_be32(&mmdc->mdmisc, 0x00000680); + out_be32(&mmdc->mdmisc, 0x00001680); out_be32(&mmdc->mpmur0, 0x00000800); out_be32(&mmdc->mdrwd, 0x00002000); out_be32(&mmdc->mpodtctrl, 0x0000022a); @@ -118,7 +118,7 @@ void mmdc_init(void) out_be32(&mmdc->mapsr, 0x00001067); /* refresh scheme */ - set_wait_for_bits_clear(&mmdc->mdref, 0x103e8000, 0x00000001); + set_wait_for_bits_clear(&mmdc->mdref, 0x0f3c8000, 0x00000001); /* disable CON_REQ */ out_be32(&mmdc->mdscr, 0x0); diff --git a/board/freescale/ls1012aqds/ls1012aqds.c b/board/freescale/ls1012aqds/ls1012aqds.c index 516f0c3..4ae8def 100644 --- a/board/freescale/ls1012aqds/ls1012aqds.c +++ b/board/freescale/ls1012aqds/ls1012aqds.c @@ -82,7 +82,7 @@ void mmdc_init(void) out_be32(&mmdc->mdcfg2, 0x01ff00db); /* other parms */ - out_be32(&mmdc->mdmisc, 0x00000680); + out_be32(&mmdc->mdmisc, 0x00001680); out_be32(&mmdc->mpmur0, 0x00000800); out_be32(&mmdc->mdrwd, 0x00002000); out_be32(&mmdc->mpodtctrl, 0x0000022a); @@ -142,7 +142,7 @@ void mmdc_init(void) out_be32(&mmdc->mapsr, 0x00001067); /* refresh scheme */ - set_wait_for_bits_clear(&mmdc->mdref, 0x103e8000, 0x00000001); + set_wait_for_bits_clear(&mmdc->mdref, 0x0f3c8000, 0x00000001); /* disable CON_REQ */ out_be32(&mmdc->mdscr, 0x0); diff --git a/board/freescale/ls1012ardb/ls1012ardb.c b/board/freescale/ls1012ardb/ls1012ardb.c index 7f7503c..06e1f6b 100644 --- a/board/freescale/ls1012ardb/ls1012ardb.c +++ b/board/freescale/ls1012ardb/ls1012ardb.c @@ -88,7 +88,7 @@ void mmdc_init(void) out_be32(&mmdc->mdcfg2, 0x01ff00db); /* other parms */ - out_be32(&mmdc->mdmisc, 0x00000680); + out_be32(&mmdc->mdmisc, 0x00001680); out_be32(&mmdc->mpmur0, 0x00000800); out_be32(&mmdc->mdrwd, 0x00002000); out_be32(&mmdc->mpodtctrl, 0x0000022a); @@ -148,7 +148,7 @@ void mmdc_init(void) out_be32(&mmdc->mapsr, 0x00001067); /* refresh scheme */ - set_wait_for_bits_clear(&mmdc->mdref, 0x103e8000, 0x00000001); + set_wait_for_bits_clear(&mmdc->mdref, 0x0f3c8000, 0x00000001); /* disable CON_REQ */ out_be32(&mmdc->mdscr, 0x0); -- 1.7.9.5