Hi, Cortex-A15 based OMAP5 does not use Snoop Control Unit(SCU)[1]. However, there is lot of code that is shared between Cortex-A9 based OMAP4 and OMAP5, hence functionality code is shared with runtime usage of SCU based on SoC worked on. However on building with OMAP5 only generates the following errors: arch/arm/mach-omap2/built-in.o: In function `scu_gp_set': arch/arm/mach-omap2/sleep44xx.S:132: undefined reference to `scu_power_mode' arch/arm/mach-omap2/built-in.o: In function `scu_gp_clear': arch/arm/mach-omap2/sleep44xx.S:229: undefined reference to `scu_power_mode' arch/arm/mach-omap2/built-in.o: In function `omap4_smp_init_cpus': arch/arm/mach-omap2/omap-smp.c:185: undefined reference to `scu_get_core_count' arch/arm/mach-omap2/built-in.o: In function `omap4_smp_prepare_cpus': arch/arm/mach-omap2/omap-smp.c:211: undefined reference to `scu_enable' This was attempted to be "fixed" in various attempts in the past [2] [3]. This series applies on top of the other fixes in discussion for linux-next [4] [5]. Based on: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git next-20130626 Nishanth Menon (2): ARM: OMAP4: sleep: build OMAP4 specific functions only for OMAP4 ARM: scu: provide inline dummy functions when SCU is not present arch/arm/include/asm/smp_scu.h | 13 ++++++++++++- arch/arm/mach-omap2/sleep44xx.S | 6 +++++- 2 files changed, 17 insertions(+), 2 deletions(-) [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0407e/CHDFJICC.html [2] https://patchwork.kernel.org/patch/2568091/ [3] http://marc.info/?t=137120115400001&r=1&w=2 [4] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/178209.html [5] https://patchwork.kernel.org/patch/2781471/ Regards, Nishanth Menon -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
