These 2 functions can be used in pair if one needs to set a mpp configuration only for a given time and then switch back to the previous mpp config.
Signed-off-by: Valentin Longchamp <[email protected]> cc: Holger Brunck <[email protected]> cc: Prafulla Wadaskar <[email protected]> --- arch/arm/cpu/arm926ejs/kirkwood/mpp.c | 18 ++++++++++++++++++ arch/arm/include/asm/arch-kirkwood/mpp.h | 2 ++ 2 files changed, 20 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/arm926ejs/kirkwood/mpp.c b/arch/arm/cpu/arm926ejs/kirkwood/mpp.c index 3da6c98..43f5053 100644 --- a/arch/arm/cpu/arm926ejs/kirkwood/mpp.c +++ b/arch/arm/cpu/arm926ejs/kirkwood/mpp.c @@ -80,3 +80,21 @@ void kirkwood_mpp_conf(u32 *mpp_list) debug("\n"); } + +u32 mpp_regs[MPP_NR_REGS]; + +void kirkwood_mpp_save(void) +{ + int i; + + for (i = 0; i < MPP_NR_REGS; i++) + mpp_regs[i] = readl(MPP_CTRL(i)); +} + +void kirkwood_mpp_restore(void) +{ + int i; + + for (i = 0; i < MPP_NR_REGS; i++) + writel(mpp_regs[i], MPP_CTRL(i)); +} diff --git a/arch/arm/include/asm/arch-kirkwood/mpp.h b/arch/arm/include/asm/arch-kirkwood/mpp.h index b3c090e..da65b4d 100644 --- a/arch/arm/include/asm/arch-kirkwood/mpp.h +++ b/arch/arm/include/asm/arch-kirkwood/mpp.h @@ -313,5 +313,7 @@ #define MPP_MAX 49 void kirkwood_mpp_conf(unsigned int *mpp_list); +void kirkwood_mpp_save(void); +void kirkwood_mpp_restore(void); #endif -- 1.7.1 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
