add i2c3 uart3 overlay support for v1.3 #8
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[ Upstream commit ed6bc6b ] If CONFIG_M54xx=y, CONFIG_MMU=y, and CONFIG_M68KFPU_EMU=y: {standard input}:272: Error: invalid instruction for this architecture; needs 68000 or higher (68000 [68ec000, 68hc000, 68hc001, 68008, 68302, 68306, 68307, 68322, 68356], 68010, 68020 [68k, 68ec020], 68030 [68ec030], 68040 [68ec040], 68060 [68ec060], cpu32 [68330, 68331, 68332, 68333, 68334, 68336, 68340, 68341, 68349, 68360], fidoa [fido]) -- statement `sub.b %d1,%d3' ignored {standard input}:609: Error: invalid instruction for this architecture; needs 68020 or higher (68020 [68k, 68ec020], 68030 [68ec030], 68040 [68ec040], 68060 [68ec060]) -- statement `bfextu 4(%a1){%d0,#8},%d0' ignored {standard input}:752: Error: operands mismatch -- statement `mulu.l 4(%a0),%d3:%d0' ignored {standard input}:1155: Error: operands mismatch -- statement `divu.l %d0,%d3:%d7' ignored The math emulation support code is intended for 68020 and higher, and uses several instructions or instruction modes not available on coldfire or 68000. Originally, the dependency of M68KFPU_EMU on MMU was fine, as MMU support was only available on 68020 or higher. But this assumption was broken by the introduction of MMU support for M547x and M548x. Drop the dependency on MMU, as the code should work fine on 68020 and up without MMU (which are not yet supported by Linux, though). Add dependencies on M68KCLASSIC (to rule out Coldfire) and FPU (kernel has some type of floating-point support --- be it hardware or software emulated, to rule out anything below 68020). Fixes: 1f7034b ("m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled") Reported-by: kernel test robot <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Greg Ungerer <[email protected]> Link: https://lore.kernel.org/r/18c34695b7c95107f60ccca82a4ff252f3edf477.1652446117.git.geert@linux-m68k.org Signed-off-by: Sasha Levin <[email protected]>
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Signed-off-by: wzj [email protected]