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authorAnatolij Gustschin <agust@denx.de>2013-02-08 00:03:43 +0000
committerWolfgang Denk <wd@denx.de>2013-03-09 08:20:54 +0100
commitb84d6d27fc32cb0a069b861147d182655e22c302 (patch)
tree75a98abff2bbe1f660d0ece3d19e00bc10a6f9d5 /arch
parentaed7548448951f1b25102306f7a149cc33b3a10c (diff)
mpc512x: add common LAW and Chip Select configuration
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/cpu/mpc512x/cpu_init.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc512x/cpu_init.c b/arch/powerpc/cpu/mpc512x/cpu_init.c
index 32ade1b0b9..ac2605a53d 100644
--- a/arch/powerpc/cpu/mpc512x/cpu_init.c
+++ b/arch/powerpc/cpu/mpc512x/cpu_init.c
@@ -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