On Tue, Jul 04, 2017 at 06:44:48PM +0200, Geert Uytterhoeven wrote: > On Tue, Jul 4, 2017 at 5:41 PM, Geert Uytterhoeven > <geert+renesas@xxxxxxxxx> wrote: > > The R-Car Gen2 platform code for CPU core bringup needs to copy a jump > > stub to on-SoC SRAM. Currently it uses a hardcoded address pointing to > > ICRAM1. > > > > This patch series adds support to specify this region from DT. It > > consists of 3 parts: > > - DT binding documentation for reserving SRAM for the jump stub, > > - A platform code update to retrieve the information from DT, if > > present (of course backwards-compatibility with old DTBs is > > preserved), > > - DT updates to reserve an SRAM region in DT on all R-Car Gen2 and > > RZ/G1 SoCs. > > > > The DT patches in this series depend on "[PATCH 0/7] ARM: dts: renesas: > > Add Inter Connect RAM". > > > > Note that the current jump stub in Linux is 12 bytes long. The patches > > reserve 16 bytes of SRAM. Should this be increased? The mapping > > granularity is PAGE_SIZE anyway. > > > > Thanks for your comments! > > > > Geert Uytterhoeven (9): > > dt-bindings: sram: Document renesas,smp-sram > > ARM: shmobile: rcar-gen2: Obtain jump stub region from DT > > ARM: dts: r8a7743: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7745: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7790: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7791: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7792: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7793: Reserve SRAM for the SMP jump stub > > ARM: dts: r8a7794: Reserve SRAM for the SMP jump stub > > Forgot to mention: this has been tested on r8a7790/lager, r8a7791/koelsch, > r8a7792/blanche, r8a7793/gose, and r8a7794/alt (r8a7794 needs an > unrelated fix to enable SMP). Geert, these seem nice and clean to me. Are they ready to be applied? -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
