On Fri, Aug 03, 2018 at 05:23:21AM -0500, Adam Ford wrote:

arch/arm/Makefile has a list of options for mtune, but the entry for CONFIG_CPU_V7A is empty. By tuning for generic-armv7-a both the size of SPL and u-boot shrink a little. For those with limited resources in SPL, every little bit helps.

The following size changed apply to omap3_logic

Original: text data bss dec hex filename 541198 22692 327040 890930 d9832 u-boot

text data bss dec hex filename 50964 429 67580 118973 1d0bd spl/u-boot-spl

With -mtune=generic-armv7-a text data bss dec hex filename 540934 22692 327056 890682 d973a u-boot

text data bss dec hex filename 50972 429 67580 118981 1d0c5 spl/u-boot-spl

Signed-off-by: Adam Ford aford173@gmail.com

diff --git a/arch/arm/Makefile b/arch/arm/Makefile index cac58bdc4d..b9f0903f9b 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -40,7 +40,7 @@ tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 tune-$(CONFIG_CPU_PXA) =-mcpu=xscale tune-$(CONFIG_CPU_ARM1136) = tune-$(CONFIG_CPU_ARM1176) = -tune-$(CONFIG_CPU_V7A) = +tune-$(CONFIG_CPU_V7A) =-mtune=generic-armv7-a tune-$(CONFIG_CPU_V7R) = tune-$(CONFIG_ARM64) =

I think we might need to use cc-option here. We have that around the arch portion due to llvm using 'armv7' not 'armv7-a'.