ppc4xx: use correct io accessors for esd's LCD code

This patch fixes esd's LCD dectection code to work correctly with
newer gcc versions.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>

board/esd/common/lcd.c

@@ -24,6 +24,7 @@
  * MA 02111-1307 USA
  */
 
+#include "asm/io.h"
 #include "lcd.h"
 
 
@@ -229,10 +230,10 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	/*
 	 * Detect epson
 	 */
-	lcd_reg[0] = 0x00;
-	lcd_reg[1] = 0x00;
+	out_8(&lcd_reg[0], 0x00);
+	out_8(&lcd_reg[1], 0x00);
 
-	if (lcd_reg[0] == 0x1c) {
+	      if (in_8(&lcd_reg[0]) == 0x1c) {
 		/*
 		 * Big epson detected
 		 */
@@ -241,7 +242,7 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 		palette_value = 0x1e4;
 		lcd_depth = 16;
 		puts("LCD:   S1D13806");
-	} else if (lcd_reg[1] == 0x1c) {
+	      } else if (in_8(&lcd_reg[1]) == 0x1c) {
 		/*
 		 * Big epson detected (with register swap bug)
 		 */
@@ -250,7 +251,7 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 		palette_value = 0x1e5;
 		lcd_depth = 16;
 		puts("LCD:   S1D13806S");
-	} else if (lcd_reg[0] == 0x18) {
+	      } else if (in_8(&lcd_reg[0]) == 0x18) {
 		/*
 		 * Small epson detected (704)
 		 */
@@ -259,7 +260,7 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 		palette_value = 0x17;
 		lcd_depth = 8;
 		puts("LCD:   S1D13704");
-	} else if (lcd_reg[0x10000] == 0x24) {
+	      } else if (in_8(&lcd_reg[0x10000]) == 0x24) {
 		/*
 		 * Small epson detected (705)
 		 */
@@ -277,7 +278,7 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	/*
 	 * Setup lcd controller regs
 	 */
-	for (i = 0; i<reg_count; i++) {
+	for (i = 0; i < reg_count; i++) {
 		s1dReg = regs[i].Index;
 		if (reg_byte_swap) {
 			if ((s1dReg & 0x0001) == 0)