sh: Record the major cut revision for probed SH-4A parts. (068f5914) · Commits · 戴 / test

arch/sh/kernel/cpu/sh4/probe.c

+5 −4

Original line number	Diff line number	Diff line
		@@ -50,23 +50,24 @@ int __init detect_cpu_and_cache_system(void)
		boot_cpu_data.dcache.ways = 1;
		boot_cpu_data.dcache.linesz = L1_CACHE_BYTES;

		/* We don't know the chip cut */
		boot_cpu_data.cut_major = boot_cpu_data.cut_minor = -1;

		/*
		* Setup some generic flags we can probe on SH-4A parts
		*/
		if (((pvr >> 24) & 0xff) == 0x10) {
		if (((pvr >> 16) & 0xff) == 0x10) {
		if ((cvr & 0x10000000) == 0)
		boot_cpu_data.flags \|= CPU_HAS_DSP;

		boot_cpu_data.flags \|= CPU_HAS_LLSC;
		boot_cpu_data.cut_major = pvr & 0x7f;
		}

		/* FPU detection works for everyone */
		if ((cvr & 0x20000000) == 1)
		boot_cpu_data.flags \|= CPU_HAS_FPU;

		/* We don't know the chip cut */
		boot_cpu_data.cut_major = boot_cpu_data.cut_minor = -1;

		/* Mask off the upper chip ID */
		pvr &= 0xffff;