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>

diff --git a/arch/powerpc/cpu/mpc512x/cpu_init.c b/arch/powerpc/cpu/mpc512x/cpu_init.c
index 32ade1b0b9215eff9a66ff65a026acdde4ca8811..ac2605a53de6827135a893dbcb0eb438f42ba061 100644 (file)
--- 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