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2019-11-04soc: imx8mq: Read SOC revision from TF-ALeonard Crestez1-3/+29
SOC revision on older imx8mq is not available in fuses so on anything other than B1 current code just reports "unknown". TF-A already handles this by parsing the ROM and exposes the value through a SMC call. Call this instead of reimplementing the workaround in the kernel itself. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Abel Vesa <abel.vesa@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-11-01soc: renesas: rcar-sysc: Add R8A77961 supportGeert Uytterhoeven5-13/+26
Add support for the power areas in the Renesas R-Car M3-W+ (R8A77961) SoC to the R-Car System Controller driver. R-Car M3-W+ (aka R-Car M3-W ES3.0) is very similar to R-Car M3-W (R8A77960), which allows for both SoCs to share a driver: - R-Car M3-W+ lacks the A2VC power area, so its area must be nullified, - The existing support for the SYSCEXTMASK register added in commit 9bd645af9d2a49ac ("soc: renesas: r8a7796-sysc: Fix power request conflicts") applies to ES3.0 and later only. As R-Car M3-W+ uses a different compatible value, differentiate based on that, instead of on the ES version. Based on a patch in the BSP by Dien Pham <dien.pham.ry@renesas.com>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-7-geert+renesas@glider.be
2019-11-01soc: renesas: rcar-rst: Add R8A77961 supportGeert Uytterhoeven1-0/+1
Add support for the Reset block in the R-Car M3-W+ (R8A77961) SoC to the Renesas R-Car RST driver. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-6-geert+renesas@glider.be
2019-11-01soc: renesas: Identify R-Car M3-W+Geert Uytterhoeven1-0/+3
Add support for identifying the R-Car M3-W+ (R8A77961) SoC, which shares the Product ID Number with R-Car M3-W (R8A77960), but differs in CUT Number (Ver. 3.0), and uses a different compatible value. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-5-geert+renesas@glider.be
2019-11-01soc: renesas: Add ARCH_R8A77961 for new R-Car M3-W+Geert Uytterhoeven1-0/+6
Add CONFIG_ARCH_R8A77961 as a configuration symbol for the new Renesas R-Car M3-W+ (R8A77961) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-4-geert+renesas@glider.be
2019-11-01soc: renesas: Add ARCH_R8A77960 for existing R-Car M3-WGeert Uytterhoeven2-3/+7
Add CONFIG_ARCH_R8A77960 as a new config symbol for R-Car M3-W (R8A77960), to replace CONFIG_ARCH_R8A7796, and avoid confusion with R-Car M3-W+ (R8A77961), which will use CONFIG_ARCH_R8A77961. Note that for now, CONFIG_ARCH_R8A7796 is retained, and just selects CONFIG_ARCH_R8A77960. This relaxes dependencies of other subsystems on the SoC configuration symbol, and provides a smooth transition path for config files through "make oldconfig". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-3-geert+renesas@glider.be
2019-11-01soc: renesas: Rename SYSC_R8A7796 to SYSC_R8A77960Geert Uytterhoeven5-10/+10
Rename CONFIG_SYSC_R8A7796 for R-Car M3-W (R8A77960) to CONFIG_SYSC_R8A77960, to avoid confusion with R-Car M3-W+ (R8A77961), which will use CONFIG_SYSC_R8A77961. Rename r8a7796_sysc_info and r8a7796_sysc_init for consistency. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-2-geert+renesas@glider.be
2019-11-01soc: renesas: Add missing check for non-zero product register addressGeert Uytterhoeven1-1/+1
If the DTB for a device with an RZ/A2 SoC lacks a device node for the BSID register, the ID validation code falls back to using a register at address 0x0, which leads to undefined behavior (e.g. reading back a random value). This could be fixed by letting fam_rza2.reg point to the actual BSID register. However, the hardcoded fallbacks were meant for backwards compatibility with old DTBs only, not for new SoCs. Hence fix this by validating renesas_family.reg before using it. Fixes: 175f435f44b724e3 ("soc: renesas: identify RZ/A2") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20191016143306.28995-1-geert+renesas@glider.be