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Commit 4efb55e6 authored by Sam Ravnborg's avatar Sam Ravnborg Committed by David S. Miller
Browse files

sparc32: introduce sparc32_start_kernel called from head_32.S 



This gives us a C hook before we call start_kernel()

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 30005efc

arch/sparc/kernel/head_32.S

+2 −8
Original line number Diff line number Diff line
@@ -661,16 +661,10 @@ continue_boot: 
		wr	%g3, PSR_ET, %psr

		WRITE_PAUSE



		/* First we call prom_init() to set up PROMLIB, then

		 * off to start_kernel().

		 */



		/* Call sparc32_start_kernel(struct linux_romvec *rp) */

		sethi	%hi(prom_vector_p), %g5

		ld	[%g5 + %lo(prom_vector_p)], %o0

		call	prom_init

		 nop



		call	start_kernel

		call	sparc32_start_kernel

		 nop



		/* We should not get here. */

arch/sparc/kernel/kernel.h

+3 −0
Original line number Diff line number Diff line
@@ -26,6 +26,9 @@ static inline unsigned long kimage_addr_to_ra(const char *p) 
#endif



#ifdef CONFIG_SPARC32

/* setup_32.c */

void sparc32_start_kernel(struct linux_romvec *rp);



/* cpu.c */

extern void cpu_probe(void);

arch/sparc/kernel/setup_32.c

+10 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#include <linux/cpu.h>

#include <linux/kdebug.h>

#include <linux/export.h>

#include <linux/start_kernel.h>



#include <asm/io.h>

#include <asm/processor.h>
@@ -244,6 +245,15 @@ struct tt_entry *sparc_ttable; 


struct pt_regs fake_swapper_regs;



/* Called from head_32.S - before we have setup anything

 * in the kernel. Be very careful with what you do here.

 */

void __init sparc32_start_kernel(struct linux_romvec *rp)

{

	prom_init(rp);

	start_kernel();

}



void __init setup_arch(char **cmdline_p)

{

	int i;