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mpc512x: add common LAW and Chip Select configuration

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Currently each mpc512x board has its own LAW and CS config code,
we should avoid this code duplication. Allow all boards to use
common code by only defining LAW and CS config macros like
CONFIG_SYS_CSx_START, CONFIG_SYS_CSx_SIZE and CONFIG_SYS_CSx_CFG.

Also allow common configuration of additional CS parameters by
CONFIG_SYS_CS_ALETIMING, CONFIG_SYS_CS_BURST, CONFIG_SYS_CS_DEADCYCLE
and CONFIG_SYS_CS_HOLDCYCLE options.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Anatolij Gustschin 2013-02-08 00:03:43 +00:00 committed by Wolfgang Denk
parent aed7548448
commit b84d6d27fc
1 changed files with 96 additions and 0 deletions
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96
arch/powerpc/cpu/mpc512x/cpu_init.c
View file

@ -26,6 +26,7 @@
#include <common.h>
#include <asm/io.h>
#include <asm/mpc512x.h>
#include <asm/processor.h>
DECLARE_GLOBAL_DATA_PTR;
@ -43,6 +44,101 @@ void cpu_init_f (volatile immap_t * im)
/* Clear initial global data */
memset ((void *) gd, 0, sizeof (gd_t));
/* Local Window and chip select configuration */
#if defined(CONFIG_SYS_CS0_START) && defined(CONFIG_SYS_CS0_SIZE)
out_be32(&im->sysconf.lpcs0aw,
CSAW_START(CONFIG_SYS_CS0_START) |
CSAW_STOP(CONFIG_SYS_CS0_START, CONFIG_SYS_CS0_SIZE));
sync_law(&im->sysconf.lpcs0aw);
#endif
#if defined(CONFIG_SYS_CS0_CFG)
out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
#endif
#if defined(CONFIG_SYS_CS1_START) && defined(CONFIG_SYS_CS1_SIZE)
out_be32(&im->sysconf.lpcs1aw,
CSAW_START(CONFIG_SYS_CS1_START) |
CSAW_STOP(CONFIG_SYS_CS1_START, CONFIG_SYS_CS1_SIZE));
sync_law(&im->sysconf.lpcs1aw);
#endif
#if defined(CONFIG_SYS_CS1_CFG)
out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
#endif
#if defined(CONFIG_SYS_CS2_START) && (defined CONFIG_SYS_CS2_SIZE)
out_be32(&im->sysconf.lpcs2aw,
CSAW_START(CONFIG_SYS_CS2_START) |
CSAW_STOP(CONFIG_SYS_CS2_START, CONFIG_SYS_CS2_SIZE));
sync_law(&im->sysconf.lpcs2aw);
#endif
#if defined(CONFIG_SYS_CS2_CFG)
out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
#endif
#if defined(CONFIG_SYS_CS3_START) && defined(CONFIG_SYS_CS3_SIZE)
out_be32(&im->sysconf.lpcs3aw,
CSAW_START(CONFIG_SYS_CS3_START) |
CSAW_STOP(CONFIG_SYS_CS3_START, CONFIG_SYS_CS3_SIZE));
sync_law(&im->sysconf.lpcs3aw);
#endif
#if defined(CONFIG_SYS_CS3_CFG)
out_be32(&im->lpc.cs_cfg[3], CONFIG_SYS_CS3_CFG);
#endif
#if defined(CONFIG_SYS_CS4_START) && defined(CONFIG_SYS_CS4_SIZE)
out_be32(&im->sysconf.lpcs4aw,
CSAW_START(CONFIG_SYS_CS4_START) |
CSAW_STOP(CONFIG_SYS_CS4_START, CONFIG_SYS_CS4_SIZE));
sync_law(&im->sysconf.lpcs4aw);
#endif
#if defined(CONFIG_SYS_CS4_CFG)
out_be32(&im->lpc.cs_cfg[4], CONFIG_SYS_CS4_CFG);
#endif
#if defined(CONFIG_SYS_CS5_START) && defined(CONFIG_SYS_CS5_SIZE)
out_be32(&im->sysconf.lpcs5aw,
CSAW_START(CONFIG_SYS_CS5_START) |
CSAW_STOP(CONFIG_SYS_CS5_START, CONFIG_SYS_CS5_SIZE));
sync_law(&im->sysconf.lpcs5aw);
#endif
#if defined(CONFIG_SYS_CS5_CFG)
out_be32(&im->lpc.cs_cfg[5], CONFIG_SYS_CS5_CFG);
#endif
#if defined(CONFIG_SYS_CS6_START) && defined(CONFIG_SYS_CS6_SIZE)
out_be32(&im->sysconf.lpcs6aw,
CSAW_START(CONFIG_SYS_CS6_START) |
CSAW_STOP(CONFIG_SYS_CS6_START, CONFIG_SYS_CS6_SIZE));
sync_law(&im->sysconf.lpcs6aw);
#endif
#if defined(CONFIG_SYS_CS6_CFG)
out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
#endif
#if defined(CONFIG_SYS_CS7_START) && defined(CONFIG_SYS_CS7_SIZE)
out_be32(&im->sysconf.lpcs7aw,
CSAW_START(CONFIG_SYS_CS7_START) |
CSAW_STOP(CONFIG_SYS_CS7_START, CONFIG_SYS_CS7_SIZE));
sync_law(&im->sysconf.lpcs7aw);
#endif
#if defined(CONFIG_SYS_CS7_CFG)
out_be32(&im->lpc.cs_cfg[7], CONFIG_SYS_CS7_CFG);
#endif
#if defined CONFIG_SYS_CS_ALETIMING
if (SVR_MJREV(in_be32(&im->sysconf.spridr)) >= 2)
out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
#endif
#if defined CONFIG_SYS_CS_BURST
out_be32(&im->lpc.cs_bcr, CONFIG_SYS_CS_BURST);
#endif
#if defined CONFIG_SYS_CS_DEADCYCLE
out_be32(&im->lpc.cs_dccr, CONFIG_SYS_CS_DEADCYCLE);
#endif
#if defined CONFIG_SYS_CS_HOLDCYCLE
out_be32(&im->lpc.cs_hccr, CONFIG_SYS_CS_HOLDCYCLE);
#endif
/* system performance tweaking */
#ifdef CONFIG_SYS_ACR_PIPE_DEP