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powerpc: Remove check for CONFIG_SERIAL_TEXT_DEBUG 

The Kconfig symbol SERIAL_TEXT_DEBUG was removed from
arch/powerpc/Kconfig.debug in v2.6.22. (In v2.6.27 it was also removed
from arch/ppc/Kconfig.debug.) So the check for its macro has evaluated
to false for over five years now. Remove that check and the few lines
of code hidden behind it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
hifive-unleashed-5.1
Paul Bolle 2014-05-20 23:02:56 +02:00 committed by Benjamin Herrenschmidt
parent dd58a092c4
commit 94314290ed
1 changed files with 0 additions and 19 deletions
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19
arch/powerpc/kernel/head_40x.S
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@ -930,25 +930,6 @@ initial_mmu:
tlbwe r4,r0,TLB_DATA /* Load the data portion of the entry */
tlbwe r3,r0,TLB_TAG /* Load the tag portion of the entry */
#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(SERIAL_DEBUG_IO_BASE)
/* Load a TLB entry for the UART, so that ppc4xx_progress() can use
* the UARTs nice and early. We use a 4k real==virtual mapping. */
lis r3,SERIAL_DEBUG_IO_BASE@h
ori r3,r3,SERIAL_DEBUG_IO_BASE@l
mr r4,r3
clrrwi r4,r4,12
ori r4,r4,(TLB_WR|TLB_I|TLB_M|TLB_G)
clrrwi r3,r3,12
ori r3,r3,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K))
li r0,0 /* TLB slot 0 */
tlbwe r4,r0,TLB_DATA
tlbwe r3,r0,TLB_TAG
#endif /* CONFIG_SERIAL_DEBUG_TEXT && SERIAL_DEBUG_IO_BASE */
isync
/* Establish the exception vector base