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Commit d87d8c11 authored by Sam Ravnborg's avatar Sam Ravnborg Committed by David S. Miller
Browse files

sparc32: handle leon in cpu.c 



A few hardcoded constant were replaced by symbolic
versions to improve readability

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Konrad Eisele <konrad@gaisler.com>
parent b08b5c9c

arch/sparc/include/asm/psr.h

+2 −0
Original line number Diff line number Diff line
@@ -35,7 +35,9 @@ 
#define PSR_VERS    0x0f000000         /* cpu-version field          */

#define PSR_IMPL    0xf0000000         /* cpu-implementation field   */



#define PSR_VERS_SHIFT		24

#define PSR_IMPL_SHIFT		28

#define PSR_VERS_SHIFTED_MASK	0xf

#define PSR_IMPL_SHIFTED_MASK	0xf



#define PSR_IMPL_TI		0x4

arch/sparc/kernel/cpu.c

+9 −9
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ static const struct manufacturer_info __initconst manufacturer_info[] = { 
		FPU(-1, NULL)

	}

},{

	4,

	PSR_IMPL_TI,

	.cpu_info = {

		CPU(0, "Texas Instruments, Inc. - SuperSparc-(II)"),

		/* SparcClassic  --  borned STP1010TAB-50*/
@@ -191,7 +191,7 @@ static const struct manufacturer_info __initconst manufacturer_info[] = { 
		FPU(-1, NULL)

	}

},{

	0xF,		/* Aeroflex Gaisler */

	PSR_IMPL_LEON,		/* Aeroflex Gaisler */

	.cpu_info = {

		CPU(3, "LEON"),

		CPU(-1, NULL)
@@ -440,16 +440,16 @@ static int __init cpu_type_probe(void) 
	int psr_impl, psr_vers, fpu_vers;

	int psr;



	psr_impl = ((get_psr() >> 28) & 0xf);

	psr_vers = ((get_psr() >> 24) & 0xf);

	psr_impl = ((get_psr() >> PSR_IMPL_SHIFT) & PSR_IMPL_SHIFTED_MASK);

	psr_vers = ((get_psr() >> PSR_VERS_SHIFT) & PSR_VERS_SHIFTED_MASK);



	psr = get_psr();

	put_psr(psr | PSR_EF);

#ifdef CONFIG_SPARC_LEON



	if (psr_impl == PSR_IMPL_LEON)

		fpu_vers = get_psr() & PSR_EF ? ((get_fsr() >> 17) & 0x7) : 7;

#else

	else

		fpu_vers = ((get_fsr() >> 17) & 0x7);

#endif



	put_psr(psr);