hi Thierry, > -----Original Messages----- > From: "Thierry Reding" <thierry.red...@gmail.com> > Sent Time: 2015-03-20 19:47:49 (Friday) > To: u-boot@lists.denx.de > Cc: "Marc Zyngier" <marc.zyng...@arm.com> > Subject: [U-Boot] [PATCH 2/6] armv8: Implement CONFIG_SYS_MALLOC_F_LEN support > > From: Thierry Reding <tred...@nvidia.com> > > Implement early malloc() support in a similar way as on 32-bit ARM. This > is required for 64-bit Tegra SoCs that initialize from the device tree > just like the earlier 32-bit SoCs. > > Cc: Albert Aribaud <albert.u.b...@aribaud.net> > Cc: Marc Zyngier <marc.zyng...@arm.com> > Signed-off-by: Thierry Reding <tred...@nvidia.com> > --- > arch/arm/include/asm/config.h | 4 ---- > arch/arm/lib/crt0_64.S | 16 ++++++++++++++-- > 2 files changed, 14 insertions(+), 6 deletions(-) > > diff --git a/arch/arm/include/asm/config.h b/arch/arm/include/asm/config.h > index be80434dee4d..7a34a0186cb1 100644 > --- a/arch/arm/include/asm/config.h > +++ b/arch/arm/include/asm/config.h > @@ -7,10 +7,6 @@ > #ifndef _ASM_CONFIG_H_ > #define _ASM_CONFIG_H_ > > -#ifdef __aarch64__ > -#define CONFIG_SYS_GENERIC_GLOBAL_DATA > -#endif > - > #define CONFIG_LMB > #define CONFIG_SYS_BOOT_RAMDISK_HIGH > > diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S > index 77563967e517..010efdbf8f3f 100644 > --- a/arch/arm/lib/crt0_64.S > +++ b/arch/arm/lib/crt0_64.S > @@ -62,9 +62,21 @@ ENTRY(_main) > * Set up initial C runtime environment and call board_init_f(0). > */ > ldr x0, =(CONFIG_SYS_INIT_SP_ADDR) > + mov x1, x0 > sub x0, x0, #GD_SIZE /* allocate one GD above SP */ > - bic sp, x0, #0xf /* 16-byte alignment for ABI compliance */ > - mov x18, sp /* GD is above SP */ > + bic x0, x0, #0xf /* 16-byte alignment for ABI compliance > */ > + mov x18, x0 /* GD is above SP */ > + mov sp, x0 > +clr_gd: > + str xzr, [x0], #8 > + cmp x0, x1 > + b.lo clr_gd > +#if defined(CONFIG_SYS_MALLOC_F_LEN) > + ldr x0, =CONFIG_SYS_MALLOC_F_LEN > + sub x0, sp, x0 > + str x0, [x18, #GD_MALLOC_BASE] sp should substract CONFIG_SYS_MALLOC_F_LEN also. Actually my previous patch did the same work, but got no reply.
> +#endif > +3: > mov x0, #0 > bl board_init_f > > -- > 2.3.2 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
