diff options
Diffstat (limited to 'package/boot/uboot-layerscape/patches/0067-armv8-ls1012a-DDR-optmizations.patch')
| -rw-r--r-- | package/boot/uboot-layerscape/patches/0067-armv8-ls1012a-DDR-optmizations.patch | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/package/boot/uboot-layerscape/patches/0067-armv8-ls1012a-DDR-optmizations.patch b/package/boot/uboot-layerscape/patches/0067-armv8-ls1012a-DDR-optmizations.patch new file mode 100644 index 0000000..7c532fb --- /dev/null +++ b/package/boot/uboot-layerscape/patches/0067-armv8-ls1012a-DDR-optmizations.patch @@ -0,0 +1,90 @@ +From 8b6c309e5e55670f429730449d9921987636c8ec Mon Sep 17 00:00:00 2001 +From: Calvin Johnson <calvin.johnson@freescale.com> +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 <calvin.johnson@nxp.com> +--- + 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 + |