[U-Boot] [PATCH 1/5] 8xxx: Add 'ecc' command

[Kumar Gala]

On Oct 22, 2009, at 7:39 PM, Peter Tyser wrote:

> Add a new 'ecc' command to interact with the 85xx and 86xx DDR ECC
> registers.  The 'ecc' command can inject data/ECC errors to simulate
> errors and provides an 'info' subcommand which displays ECC error
> information such as failure address, read vs expected data/ECC,
> physical signal which failed, single-bit error count, and multiple bit
> error occurrence.  An example of the 'ecc info' command follows:
>
> WARNING: ECC error in DDR Controller 0
>        Addr:   0x0_01001000
>        Data:   0x00000001_00000000     ECC:    0x00
>        Expect: 0x00000000_00000000     ECC:    0x00
>        Net:    DATA32
>        Syndrome: 0xce
>        Single-Bit errors: 0x40
>        Attrib: 0x30112001
>        Detect: 0x80000004 (MME, SBE)
>
> Signed-off-by: Peter Tyser <ptyser at xes-inc.com>
> Signed-off-by: John Schmoller <jschmoller at xes-inc.com>
> ---
> This code was tested on a 8572, 8640, and P2020.  A board with a
> 32-bit data bus was not tested however.
>
> cpu/mpc8xxx/ddr/Makefile     |    2 +
> cpu/mpc8xxx/ddr/ecc.c        |  371 +++++++++++++++++++++++++++++++++ 
> +++++++++
> include/asm-ppc/immap_85xx.h |    4 +
> include/asm-ppc/immap_86xx.h |    3 +
> 4 files changed, 380 insertions(+), 0 deletions(-)
> create mode 100644 cpu/mpc8xxx/ddr/ecc.c
>
> diff --git a/cpu/mpc8xxx/ddr/Makefile b/cpu/mpc8xxx/ddr/Makefile
> index cb7f856..f073779 100644
> --- a/cpu/mpc8xxx/ddr/Makefile
> +++ b/cpu/mpc8xxx/ddr/Makefile
> @@ -22,6 +22,8 @@ COBJS-$(CONFIG_FSL_DDR3)	+= main.o util.o  
> ctrl_regs.o options.o \
> 				   lc_common_dimm_params.o
> COBJS-$(CONFIG_FSL_DDR3)	+= ddr3_dimm_params.o
>
> +COBJS-$(CONFIG_DDR_ECC_CMD)	+= ecc.o

Should this be CONFIG_FSL_DDR_ECC_CMD ?

> +
> SRCS	:= $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
> OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))