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* PPC405EP: Add CFG_GPIO0_OR, CFG_GPIO0_ODR to setup GPIO completely.
- Add configuration of Open Drain GPIO Output selection
- Add configuration of initial value of GPIO output pins
Patch by Tolunay Orkun, 07 Apr 2006

Stefan Roese 18 年之前
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共有 2 个文件被更改,包括 15 次插入4 次删除
  1. 5 0
      CHANGELOG
  2. 10 4
      cpu/ppc4xx/cpu_init.c

+ 5 - 0
CHANGELOG

@@ -2,6 +2,11 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* PPC405EP: Add CFG_GPIO0_OR, CFG_GPIO0_ODR to setup GPIO completely.
+  - Add configuration of Open Drain GPIO Output selection
+  - Add configuration of initial value of GPIO output pins
+  Patch by Tolunay Orkun, 07 Apr 2006
+
 * Fix spelling; minor code cleanup.
 
 * Fix JFFS2 compilation problem

+ 10 - 4
cpu/ppc4xx/cpu_init.c

@@ -226,13 +226,19 @@ cpu_init_f (void)
 	/*
 	 * GPIO0 setup (select GPIO or alternate function)
 	 */
-	out32(GPIO0_OSRH, CFG_GPIO0_OSRH);   /* output select */
+#if defined(CFG_GPIO0_OR)
+	out32(GPIO0_OR, CFG_GPIO0_OR);		/* set initial state of output pins	*/
+#endif
+#if defined(CFG_GPIO0_ODR)
+	out32(GPIO0_ODR, CFG_GPIO0_ODR);	/* open-drain select			*/
+#endif
+	out32(GPIO0_OSRH, CFG_GPIO0_OSRH);	/* output select			*/
 	out32(GPIO0_OSRL, CFG_GPIO0_OSRL);
-	out32(GPIO0_ISR1H, CFG_GPIO0_ISR1H); /* input select */
+	out32(GPIO0_ISR1H, CFG_GPIO0_ISR1H);	/* input select				*/
 	out32(GPIO0_ISR1L, CFG_GPIO0_ISR1L);
-	out32(GPIO0_TSRH, CFG_GPIO0_TSRH);   /* three-state select */
+	out32(GPIO0_TSRH, CFG_GPIO0_TSRH);	/* three-state select			*/
 	out32(GPIO0_TSRL, CFG_GPIO0_TSRL);
-	out32(GPIO0_TCR, CFG_GPIO0_TCR);     /* enable output driver for outputs */
+	out32(GPIO0_TCR, CFG_GPIO0_TCR);	/* enable output driver for outputs	*/
 
 	/*
 	 * Set EMAC noise filter bits