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| author | Sam Ravnborg <sam@ravnborg.org> | 2012-05-12 05:43:48 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-12 22:32:00 +0400 |
| commit | eb06f476309d42150a54a440d456374475aaacce (patch) | |
| tree | b6552290f10d0202900e8755f87f4c3cf292fe26 /arch/sparc | |
| parent | 142cc039bdb3263e765a9a28e10048d9d9949df7 (diff) | |
| download | linux-eb06f476309d42150a54a440d456374475aaacce.tar.xz | |
sparc32: drop extra getprop call during boot
It was present only to support the sun4, sun4c boxes which
do not have the "compatible" property in the root-node
of the device tree.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/head_32.S | 50 |
1 files changed, 9 insertions, 41 deletions
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S index 56e32a209bb4..17e00c1ff5d1 100644 --- a/arch/sparc/kernel/head_32.S +++ b/arch/sparc/kernel/head_32.S @@ -26,11 +26,9 @@ #include <asm/pgtsrmmu.h> /* SRMMU_PGDIR_SHIFT */ .data -/* - * The following are used with the prom_vector node-ops to figure out - * the cpu-type +/* The following are used with the prom_vector node-ops to figure out + * the cpu-type */ - .align 4 cputyp: .word 1 @@ -38,27 +36,12 @@ cputyp: .align 4 .globl cputypval cputypval: - .asciz "sun4c" + .asciz "sun4m" .ascii " " -cputypvalend: -cputypvallen = cputypvar - cputypval - +/* Tested on SS-5, SS-10 */ .align 4 -/* - * Sun people can't spell worth damn. "compatability" indeed. - * At least we *know* we can't spell, and use a spell-checker. - */ - -/* Uh, actually Linus it is I who cannot spell. Too much murky - * Sparc assembly will do this to ya. - */ cputypvar: - .asciz "compatability" - -/* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */ - .align 4 -cputypvar_sun4m: .asciz "compatible" .align 4 @@ -677,10 +660,10 @@ execute_in_high_mem: /* Get the machine type via the mysterious romvec node operations. */ - add %g7, 0x1c, %l1 + add %g7, 0x1c, %l1 ld [%l1], %l0 ld [%l0], %l0 - call %l0 + call %l0 or %g0, %g0, %o0 ! next_node(0) = first_node or %o0, %g0, %g6 @@ -688,28 +671,13 @@ execute_in_high_mem: or %o1, %lo(cputypvar), %o1 sethi %hi(cputypval), %o2 ! information, the string or %o2, %lo(cputypval), %o2 - ld [%l1], %l0 ! 'compatibility' tells + ld [%l1], %l0 ! 'compatible' tells ld [%l0 + 0xc], %l0 ! that we want 'sun4x' where - call %l0 ! x is one of '', 'c', 'm', - nop ! 'd' or 'e'. %o2 holds pointer + call %l0 ! x is one of 'm', 'd' or 'e'. + nop ! %o2 holds pointer ! to a buf where above string ! will get stored by the prom. - subcc %o0, %g0, %g0 - bpos got_prop ! Got the property - nop - - or %g6, %g0, %o0 - sethi %hi(cputypvar_sun4m), %o1 - or %o1, %lo(cputypvar_sun4m), %o1 - sethi %hi(cputypval), %o2 - or %o2, %lo(cputypval), %o2 - ld [%l1], %l0 - ld [%l0 + 0xc], %l0 - call %l0 - nop - -got_prop: #ifdef CONFIG_SPARC_LEON /* no cpu-type check is needed, it is a SPARC-LEON */ |