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OMAP3 Beagle Pin Mux initialization glitch fix

The below patch reverses the order of two segments in the board file.
Output pins need to have their values initialized, before they are
exposed to the logic outside the chip.

Signed-off-by: Bob Feretich <bob.feretich@rafresearch.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Bob Feretich 14 years ago
parent
commit
52d82e40b0
1 changed files with 6 additions and 6 deletions
  1. 6 6
      board/ti/beagle/beagle.c

+ 6 - 6
board/ti/beagle/beagle.c

@@ -301,17 +301,17 @@ int misc_init_r(void)
 	twl4030_power_init();
 	twl4030_power_init();
 	twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 	twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 
 
-	/* Configure GPIOs to output */
-	writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
-	writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
-		GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
-
-	/* Set GPIOs */
+	/* Set GPIO states before they are made outputs */
 	writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
 	writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
 		&gpio6_base->setdataout);
 		&gpio6_base->setdataout);
 	writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 	writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 		GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
 		GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
 
 
+	/* Configure GPIOs to output */
+	writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
+	writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
+		GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
+
 	dieid_num_r();
 	dieid_num_r();
 
 
 	return 0;
 	return 0;