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ppc4xx: Add option for PPC440SPe ports without old Rev. A support 

The 440SPe Rev. A is quite old and newer 440SPe boards don't need support
for this CPU revision. Since removing support for this older version
simplifies the creation for newer U-Boot ports, this patch now enables
440SPe > Rev. A support by creating the CONFIG_440SPE_REVA define. By
defining this in the board config header, Rev. A will still be supported.
Otherwise (default for newer board ports), Rev. A will not be supported.

Signed-off-by: Stefan Roese <sr@denx.de>
utp
Stefan Roese 2010-04-09 14:03:59 +02:00
parent 288991c93f
commit 2a72e9ed18
3 changed files with 3 additions and 1 deletions
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2
arch/ppc/cpu/ppc4xx/start.S
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@ -475,7 +475,7 @@ tlbnxt: addi r4,r4,1 /* Next TLB */
/*----------------------------------------------------------------*/
/* TLB entry setup -- step thru tlbtab */
/*----------------------------------------------------------------*/
#if defined(CONFIG_440SPE)
#if defined(CONFIG_440SPE_REVA)
/*----------------------------------------------------------------*/
/* We have different TLB tables for revA and rev B of 440SPe */
/*----------------------------------------------------------------*/

1
include/configs/katmai.h
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@ -37,6 +37,7 @@
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_440SPE 1 /* Specifc SPe support */
#define CONFIG_440SPE_REVA 1 /* Support old Rev A. */
#define CONFIG_SYS_CLK_FREQ 33333333 /* external freq to pll */
#define CONFIG_SYS_4xx_RESET_TYPE 0x2 /* use chip reset on this board */

1
include/configs/yucca.h
View File

@ -37,6 +37,7 @@
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_440SPE 1 /* Specifc SPe support */
#define CONFIG_440SPE_REVA 1 /* Support old Rev A. */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
#define CONFIG_SYS_CLK_FREQ 33333333 /* external freq to pll */
#define EXTCLK_33_33 33333333