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m68k: set appropriate machine type for m5411x SoC platforms 

Create a new machine type for platforms based around the ColdFire 5441x
SoC family. Set that machine type on startup when building for this
platform type.

Currently the ColdFire head.S hard codes a M54xx machine type at startup -
since that is the only platform type currently supported with MMU enabled.
The m5441x has an MMU and this change forms part of the support required
to run it with the MMU enabled.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
This commit is contained in:
Greg Ungerer 2016-08-25 23:10:59 +10:00
parent e5f8d1f0a1
commit 81d33350ba
5 changed files with 6 additions and 2 deletions
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4
arch/m68k/coldfire/head.S
View File

@ -282,8 +282,8 @@ _clear_bss:
movel %d0,m68k_mmutype
movel #FPU_COLDFIRE,%d0
movel %d0,m68k_fputype
movel #MACH_M54XX,%d0
movel %d0,m68k_machtype /* Mark us as a 54xx machine */
movel #MACHINE,%d0
movel %d0,m68k_machtype /* Mark machine type */
lea init_task,%a2 /* Set "current" init task */
#endif

1
arch/m68k/include/asm/m5441xsim.h
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@ -10,6 +10,7 @@
#define CPU_NAME "COLDFIRE(m5441x)"
#define CPU_INSTR_PER_JIFFY 2
#define MCF_BUSCLK (MCF_CLK / 2)
#define MACHINE MACH_M5441X
#include <asm/m54xxacr.h>

1
arch/m68k/include/asm/m54xxsim.h
View File

@ -8,6 +8,7 @@
#define CPU_NAME "COLDFIRE(m54xx)"
#define CPU_INSTR_PER_JIFFY 2
#define MCF_BUSCLK (MCF_CLK / 2)
#define MACHINE MACH_M54XX
#include <asm/m54xxacr.h>

1
arch/m68k/include/uapi/asm/bootinfo.h
View File

@ -81,6 +81,7 @@ struct mem_info {
#define MACH_Q40 10
#define MACH_SUN3X 11
#define MACH_M54XX 12
#define MACH_M5441X 13
/*

1
arch/m68k/kernel/setup_mm.c
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@ -341,6 +341,7 @@ void __init setup_arch(char **cmdline_p)
#endif
#ifdef CONFIG_COLDFIRE
case MACH_M54XX:
case MACH_M5441X:
config_BSP(NULL, 0);
break;
#endif