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changeset 793:d88a207838ef

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Add support for faster boards.
author gthomas
date Tue, 04 Mar 2003 16:16:02 +0000
parents ad2707e54a69
children 0b204117867f
files packages/hal/powerpc/viper/current/ChangeLog packages/hal/powerpc/viper/current/cdl/hal_powerpc_viper.cdl packages/hal/powerpc/viper/current/src/viper.S
diffstat 3 files changed, 14 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/packages/hal/powerpc/viper/current/ChangeLog
+++ b/packages/hal/powerpc/viper/current/ChangeLog
@@ -1,3 +1,8 @@
+2003-03-04  Gary Thomas  <gary@mlbassoc.com>
+
+	* src/viper.S: 
+	* cdl/hal_powerpc_viper.cdl: Support higher speed parts - up to 100MHz.
+
 2002-12-02  Gary Thomas  <gthomas@ecoscentric.com>
 
 	* include/plf_intr.h: Use MPC8xx variant RESET support.
--- a/packages/hal/powerpc/viper/current/cdl/hal_powerpc_viper.cdl
+++ b/packages/hal/powerpc/viper/current/cdl/hal_powerpc_viper.cdl
@@ -94,7 +94,7 @@ cdl_package CYGPKG_HAL_POWERPC_VIPER {
     cdl_option CYGHWR_HAL_POWERPC_BOARD_SPEED {
         display          "Development board clock speed (MHz)"
         flavor           data
-        legal_values     { 47 51 55 59 63 }
+        legal_values     { 47 51 55 59 63 100 }
         default_value    63
         description      "
            VIPER Development Boards have various system clock speeds
--- a/packages/hal/powerpc/viper/current/src/viper.S
+++ b/packages/hal/powerpc/viper/current/src/viper.S
@@ -279,6 +279,10 @@ 10:
 #define PLPRCR_PTX 0x010 // (62.7MHz/3.6864MHz)-1
 #define MAMR_PTA 123
 #endif        
+#if (CYGHWR_HAL_POWERPC_BOARD_SPEED == 100)
+#define PLPRCR_PTX 0x01A // (99.53MHz/3.6864MHz)-1
+#define MAMR_PTA 194
+#endif        
 //#define MAMR_PTA (((((((PLPRCR_PTX+1)*3686400)*625)/10000000)+31)/32)&0xFF)
         lwi     r3,0x00802114|(MAMR_PTA<<24)
         stw	r3,MAMR(r4)
@@ -358,7 +362,11 @@ 10:
 // 	Field DFNH (bits 24-26) = 0
 // 	Field Reserved (bits 27-31) = 0
 	 */
+#if (CYGHWR_HAL_POWERPC_BOARD_SPEED > 63)
+	lwi	r3,0x00420000  // Bus divide by 2
+#else        
 	lwi	r3,0x00400000
+#endif        
 	stw	r3,SCCR(r4)
         
 	LED( 0x03 )