On 07/25/2013 04:18 PM, Michal Simek wrote:
The first 1MB is not initialized by first stage bootloader. Check if memory is setup to 16bit mode and ECC is enabled. If it is, clear the first 1MB. Also u-boot should report only the half size of memory.
Signed-off-by: Michal Simek michal.simek@xilinx.com Acked-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com
arch/arm/cpu/armv7/zynq/Makefile | 1 + arch/arm/cpu/armv7/zynq/ddrc.c | 65 ++++++++++++++++++++++++++++++ arch/arm/include/asm/arch-zynq/hardware.h | 8 ++++ arch/arm/include/asm/arch-zynq/sys_proto.h | 1 + board/xilinx/zynq/board.c | 2 + 5 files changed, 77 insertions(+) create mode 100644 arch/arm/cpu/armv7/zynq/ddrc.c
diff --git a/arch/arm/cpu/armv7/zynq/Makefile b/arch/arm/cpu/armv7/zynq/Makefile index 388085d..f38b3b7 100644 --- a/arch/arm/cpu/armv7/zynq/Makefile +++ b/arch/arm/cpu/armv7/zynq/Makefile @@ -30,6 +30,7 @@ LIB = $(obj)lib$(SOC).o
COBJS-y := timer.o COBJS-y += cpu.o +COBJS-y += ddrc.o COBJS-y += slcr.o
COBJS := $(COBJS-y) diff --git a/arch/arm/cpu/armv7/zynq/ddrc.c b/arch/arm/cpu/armv7/zynq/ddrc.c new file mode 100644 index 0000000..e8f8c19 --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/ddrc.c @@ -0,0 +1,65 @@ +/*
- Copyright (C) 2012 Michal Simek monstr@monstr.eu
- Copyright (C) 2012 Xilinx, Inc. All rights reserved.
- See file CREDITS for list of people who contributed to this
- project.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- */
Let me NACK this patch by myself. I will add SPDX License identifier.
Thanks, Michal