kernel/arch/arm/mach-imx/Makefile, branch linux-6.2.y

ARM: 9263/1: use .arch directives instead of assembler command line flags

2022-11-08T18:36:17Z

Similar to commit a6c30873ee4a ("ARM: 8989/1: use .fpu assembler directives instead of assembler arguments"). GCC and GNU binutils support setting the "sub arch" via -march=, -Wa,-march, target function attribute, and .arch assembler directive. Clang was missing support for -Wa,-march=, but this was implemented in clang-13. The behavior of both GCC and Clang is to prefer -Wa,-march= over -march= for assembler and assembler-with-cpp sources, but Clang will warn about the -march= being unused. clang: warning: argument unused during compilation: '-march=armv6k' [-Wunused-command-line-argument] Since most assembler is non-conditionally assembled with one sub arch (modulo arch/arm/delay-loop.S which conditionally is assembled as armv4 based on CONFIG_ARCH_RPC, and arch/arm/mach-at91/pm-suspend.S which is conditionally assembled as armv7-a based on CONFIG_CPU_V7), prefer the .arch assembler directive. Add a few more instances found in compile testing as found by Arnd and Nathan. Link: https://github.com/llvm/llvm-project/commit/1d51c699b9e2ebc5bcfdbe85c74cc871426333d4 Link: https://bugs.llvm.org/show_bug.cgi?id=48894 Link: https://github.com/ClangBuiltLinux/linux/issues/1195 Link: https://github.com/ClangBuiltLinux/linux/issues/1315 Suggested-by: Arnd Bergmann Suggested-by: Nathan Chancellor Signed-off-by: Arnd Bergmann Tested-by: Nathan Chancellor Signed-off-by: Nick Desaulniers Signed-off-by: Russell King (Oracle)

ARM: imx: Add initial support for i.MXRT10xx family

2022-01-28T09:46:42Z

The i.MXRT10xx family of processors features NXP's implementation of the Arm Cortex-M7 core and in some case the Arm Cortex-M4 core too. This patch aims to add an initial support for imxrt. Signed-off-by: Giulio Benetti Signed-off-by: Jesse Taube [Jesse: removed SOC_IMXRT's 'depends on ARCH_MULTI_V7' and 'select ARM_GIC if ARCH_MULTI_V7'] Signed-off-by: Shawn Guo

ARM: imx: remove dead left-over from i.MX{27,31,35} removal

2021-11-21T08:38:41Z

The commits: commit 879c0e5e0ac7 ("ARM: imx: Remove i.MX27 board files") commit c93197b0041d ("ARM: imx: Remove i.MX31 board files") commit e1324ece2af4 ("ARM: imx: Remove i.MX35 board files") remove the config MACH_MX27_3DS, MACH_MX31_3DS and MACH_MX35_3DS. Commit a542fc18168c ("ARM: imx31: Remove remaining i.MX31 board code") further removes arch/arm/mach-imx/3ds_debugboard.{c,h}. So, only some dead left-over in Kconfig and Makefile remains. Remove this remaining left-over. This issue was identified with ./scripts/checkkconfigsymbols.py, which warns on references to the non-existing configs MACH_MX{27,31,35}_3DS in ./arch/arm/mach-imx/Kconfig. Signed-off-by: Lukas Bulwahn Reviewed-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx: add smp support for imx7d

2021-06-12T04:02:57Z

Add SMP support for i.MX7D, including CPU hotplug support, for systems where TFA is not present. The motivation for bringing up the second i.MX7D core inside the kernel is that legacy vendor bootloaders usually do not implement PSCI support. This is a significant blocker for systems in the field that are running old bootloader versions to upgrade to a modern mainline kernel version, as only one CPU of the i.MX7D would be brought up. Bring up the second i.MX7D core inside the kernel to make the migration path to mainline kernel easier for the existing iMX7D users. Signed-off-by: Anson Huang Signed-off-by: Arulpandiyan Vadivel # Fix merge conflicts Signed-off-by: Leonard Crestez Signed-off-by: Marek Vasut # heavy cleanup Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo

ARM: imx: Remove remnant board file support pieces

2020-09-13T03:16:03Z

Since i.MX board files are gone, remove some remnant pieces of board file support. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx: Remove imx device directory

2020-09-13T03:16:00Z

arch/arm/mach-imx/devices/ contains utilities for registering devices in board file. Now that board files are gone, get rid of the devices directory. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx: Remove iomux-v3 board code

2020-09-13T03:15:58Z

IMX_HAVE_IOMUX_V3 was only used by i.MX25/35 board files. Since the board files users are gone, it is safe to remove iomux-v3 related code. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx27: Get rid of mm-imx27.c

2020-09-13T03:15:45Z

Get rid of mm-imx27.c and move its code to the mach-imx27.c file. This aligns with other i.MX SoC code. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx27: Remove iomux-v1 board code

2020-09-13T03:15:43Z

IMX_HAVE_IOMUX_V1 was only used by i.MX27 board files. Since the board files users are gone, it is safe to remove iomux-v1 related code. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Signed-off-by: Shawn Guo

ARM: imx: Remove ehci board files

2020-09-05T07:34:31Z

Now that the i.MX board files have been removed, there is no need for keeping the ehci related files, so just remove them. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo