[U-Boot] [PATCH 1/2] [v2] powerpc/85xx: introduce and document CONFIG_SYS_CCSRBAR macros
Kumar Gala
kumar.gala at freescale.com
Thu Aug 4 06:20:47 CEST 2011
On Aug 3, 2011, at 4:30 PM, Timur Tabi wrote:
> Introduce the CONFIG_SYS_CCSRBAR_PHYS_HIGH and CONFIG_SYS_CCSRBAR_PHYS_LOW
> macros, which contain the high and low portions of CONFIG_SYS_CCSRBAR_PHYS.
> This is necessary for the assembly-language code that relocates CCSR, since
> the assembler does not understand 64-bit constants.
>
> CONFIG_SYS_CCSRBAR_PHYS is automatically defined from the
> CONFIG_SYS_CCSRBAR_PHYS_HIGH and CONFIG_SYS_CCSRBAR_PHYS_LOW macros, so it
> should not be defined in a board header file. Similarly,
> CONFIG_SYS_CCSRBAR_DEFAULT is defined for each SOC in config_mpc85xx.h, so
> it should also not be defined in the board header file.
>
> CONFIG_SYS_CCSR_DO_NOT_RELOCATE is a "short-cut" macro that guarantees that
> CONFIG_SYS_CCSRBAR_PHYS is set to the same value as CONFIG_SYS_CCSRBAR_DEFAULT,
> and so CCSR will not be relocated.
>
> Since CONFIG_SYS_CCSRBAR_DEFAULT is locked to a fixed value, multi-stage U-Boot
> builds (e.g. NAND) are required to relocate CCSR only during the last stage
> (i.e. the "real" U-Boot). All other stages should define
> CONFIG_SYS_CCSR_DO_NOT_RELOCATE to ensure that CCSR is not relocated.
>
> README is updated with descriptions of all the CONFIG_SYS_CCSRBAR_xxx macros.
>
> Signed-off-by: Timur Tabi <timur at freescale.com>
> ---
> README | 37 +++++++++++++++++++++++++
> arch/powerpc/include/asm/config_mpc85xx.h | 39 ++++++++++++++++++++++++++
> include/configs/MPC8536DS.h | 17 ++---------
> include/configs/MPC8540ADS.h | 11 +------
> include/configs/MPC8541CDS.h | 10 +-----
> include/configs/MPC8544DS.h | 10 +-----
> include/configs/MPC8548CDS.h | 10 +-----
> include/configs/MPC8555CDS.h | 10 +-----
> include/configs/MPC8560ADS.h | 11 +------
> include/configs/MPC8568MDS.h | 10 +-----
> include/configs/MPC8569MDS.h | 15 ++--------
> include/configs/MPC8572DS.h | 17 ++---------
> include/configs/P1022DS.h | 14 +--------
> include/configs/P1023RDS.h | 9 ------
> include/configs/P1_P2_RDB.h | 19 ++-----------
> include/configs/P2020DS.h | 14 +--------
> include/configs/P2041RDB.h | 14 ---------
> include/configs/SBC8540.h | 14 ---------
> include/configs/TQM85xx.h | 16 +++-------
> include/configs/corenet_ds.h | 13 ---------
> include/configs/mpq101.h | 16 +---------
> include/configs/sbc8548.h | 10 +-----
> include/configs/sbc8560.h | 14 ---------
> include/configs/socrates.h | 10 +-----
> include/configs/stxgp3.h | 7 +---
> include/configs/stxssa.h | 8 ++---
> include/configs/xpedite520x.h | 10 +-----
> include/configs/xpedite537x.h | 10 +-----
> include/configs/xpedite550x.h | 10 +-----
> include/mpc85xx.h | 42 +++++++++++++++++++++++++++++
> 30 files changed, 170 insertions(+), 277 deletions(-)
What changed in v2?
- k
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