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Diffstat (limited to 'packages/u-boot/u-boot-1.1.6/u-boot-1.1.6-83xx-optimizations.patch')
-rw-r--r--packages/u-boot/u-boot-1.1.6/u-boot-1.1.6-83xx-optimizations.patch89
1 files changed, 89 insertions, 0 deletions
diff --git a/packages/u-boot/u-boot-1.1.6/u-boot-1.1.6-83xx-optimizations.patch b/packages/u-boot/u-boot-1.1.6/u-boot-1.1.6-83xx-optimizations.patch
new file mode 100644
index 0000000000..fe85228771
--- /dev/null
+++ b/packages/u-boot/u-boot-1.1.6/u-boot-1.1.6-83xx-optimizations.patch
@@ -0,0 +1,89 @@
+diff --exclude CVS -uNr u-boot-1.1.6/cpu/mpc83xx/cpu_init.c u-boot-1.1.6.modified/cpu/mpc83xx/cpu_init.c
+--- u-boot-1.1.6/cpu/mpc83xx/cpu_init.c 2007-04-10 17:43:16.000000000 -0400
++++ u-boot-1.1.6.modified/cpu/mpc83xx/cpu_init.c 2007-04-10 17:31:51.000000000 -0400
+@@ -66,10 +66,30 @@
+ memset ((void *) gd, 0, sizeof (gd_t));
+
+ /* system performance tweaking */
++ /* System Priority Configuration Register (SPCR) */
++#ifdef CFG_SPCR_PCIHPE
++ /* PCI highest priority enable */
++ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_PCIHPE) | (CFG_SPCR_PCIHPE << SPCR_PCIHPE_SHIFT);
++#endif
+
+-#ifdef CFG_ACR_PIPE_DEP
+- /* Arbiter pipeline depth */
+- im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | (3 << ACR_PIPE_DEP_SHIFT);
++#ifdef CFG_SPCR_PCIPR
++ /* PCI bridge CSB request priority */
++ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_PCIPR) | (CFG_SPCR_PCIPR << SPCR_PCIPR_SHIFT);
++#endif
++
++#ifdef CFG_SPCR_OPT
++ /* Optimize transactions between CSB and other devices */
++ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_OPT) | (CFG_SPCR_OPT << SPCR_OPT_SHIFT);
++#endif
++
++#ifdef CFG_SPCR_TBEN
++ /* e300 time base unit enable */
++ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TBEN) | (CFG_SPCR_TBEN << SPCR_TBEN_SHIFT);
++#endif
++
++#ifdef CFG_SPCR_COREPR
++ /* e300 core CSB request priority */
++ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_COREPR) | (CFG_SPCR_COREPR << SPCR_COREPR_SHIFT);
+ #endif
+
+ #ifdef CFG_SPCR_TSEC1EP
+@@ -82,6 +102,7 @@
+ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (3 << SPCR_TSEC2EP_SHIFT);
+ #endif
+
++ /* System Clock Control Register (SCCR) */
+ #ifdef CFG_SCCR_TSEC1CM
+ /* TSEC1 clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (1 << SCCR_TSEC1CM_SHIFT);
+@@ -91,6 +112,12 @@
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (1 << SCCR_TSEC2CM_SHIFT);
+ #endif
+
++ /* Arbiter Control Register (ACR) */
++#ifdef CFG_ACR_PIPE_DEP
++ /* Arbiter pipeline depth */
++ im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | (3 << ACR_PIPE_DEP_SHIFT);
++#endif
++
+ #ifdef CFG_ACR_RPTCNT
+ /* Arbiter repeat count */
+ im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (3 << ACR_RPTCNT_SHIFT));
+diff --exclude CVS -uNr u-boot-1.1.6/include/configs/MPC8323ERDB.h u-boot-1.1.6.modified/include/configs/MPC8323ERDB.h
+--- u-boot-1.1.6/include/configs/MPC8323ERDB.h 2007-04-10 17:43:16.000000000 -0400
++++ u-boot-1.1.6.modified/include/configs/MPC8323ERDB.h 2007-04-10 17:32:03.000000000 -0400
+@@ -63,6 +63,16 @@
+ HRCWH_BIG_ENDIAN |\
+ HRCWH_LALE_NORMAL)
+
++/* System performance */
++#define CFG_ACR_PIPE_DEP 3 /* Arbiter pipeline depth (0-3) */
++#define CFG_ACR_RPTCNT 3 /* Arbiter repeat count (0-7) */
++#define CFG_SPCR_PCIHPE 0 /* (0-1) PCI highest priority enable */
++#define CFG_SPCR_PCIPR 0 /* (0-3) PCI bridge CSB request priority */
++#define CFG_SPCR_OPT 1 /* (0-1) Optimize transactions between CSB and the SEC and QUICC Engine block */
++#define CFG_SPCR_TBEN 1 /* (0-1) e300 time base unit enable */
++#define CFG_SPCR_COREPR 0 /* (0-3) e300 core CSB request priority */
++
++
+ /*
+ * System IO Config
+ */
+diff --exclude CVS -uNr u-boot-1.1.6/include/mpc83xx.h u-boot-1.1.6.modified/include/mpc83xx.h
+--- u-boot-1.1.6/include/mpc83xx.h 2007-04-10 17:43:16.000000000 -0400
++++ u-boot-1.1.6.modified/include/mpc83xx.h 2007-04-10 17:32:15.000000000 -0400
+@@ -91,6 +91,7 @@
+ #define SPCR_PCIPR 0x03000000 /* PCI bridge system bus request priority */
+ #define SPCR_PCIPR_SHIFT (31-7)
+ #define SPCR_OPT 0x00800000 /* Optimize */
++#define SPCR_OPT_SHIFT (31-8)
+ #define SPCR_TBEN 0x00400000 /* E300 PowerPC core time base unit enable */
+ #define SPCR_TBEN_SHIFT (31-9)
+ #define SPCR_COREPR 0x00300000 /* E300 PowerPC Core system bus request priority */