From 2cc85bc346ba224253a9a1be2d9605dbc79940d9 Mon Sep 17 00:00:00 2001
From: Frank Gevaerts <frank@gevaerts.be>
Date: Sun, 12 Oct 2008 16:55:57 +0000
Subject: [PATCH] Fix LCD timings on the older meizu M3 variant, so it works
 with a fast clock. (FS#9484, by Denes Balatoni)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18784 a1c6a512-1295-4272-9138-f99709370657
---
 bootloader/meizu_m3.c                         | 10 +++++-----
 firmware/target/arm/s5l8700/meizu-m3/lcd-m3.c | 14 +++++++-------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/bootloader/meizu_m3.c b/bootloader/meizu_m3.c
index c88494448c..8e3a7f64c8 100644
--- a/bootloader/meizu_m3.c
+++ b/bootloader/meizu_m3.c
@@ -106,15 +106,15 @@ void main(void)
     char mystring[64];
     int tmpval;
 
-    /* set clock to 200 MHz */
-    #if 0
+    /* set fclk = 200MHz, hclk = 100MHz, pclk = 50MHz, others off */
     CLKCON = 0x00800080;
-    CLKCON2= 0x00;
+    PLLCON = 0;
     PLL0PMS = 0x1ad200;
+    PLL0LCNT = 8100;
     PLLCON = 1;
     while (!(PLLLOCK & 1)) ;
-    CLKCON = 0x20802080;
-    #endif
+    CLKCON2= 0x80;
+    CLKCON = 0x20803180;
 
     /* mask all interrupts
        this is done, because the lcd framebuffer
diff --git a/firmware/target/arm/s5l8700/meizu-m3/lcd-m3.c b/firmware/target/arm/s5l8700/meizu-m3/lcd-m3.c
index 88147e9b16..39b8f9b278 100644
--- a/firmware/target/arm/s5l8700/meizu-m3/lcd-m3.c
+++ b/firmware/target/arm/s5l8700/meizu-m3/lcd-m3.c
@@ -96,7 +96,7 @@ void lcd_on() {
 	lcd_sleep(70000);
 	lcd_writereg(0x7, 0x21);
 	lcd_writereg(0x12, 0x1137);
-	lcd_sleep(70000);
+	lcd_sleep(700000);
 	lcd_writereg(0x7, 0x233);
     }
 }
@@ -128,9 +128,9 @@ void lcd_init_device(void)
 
 /* detect lcd type */
     LCD_WCMD = 0x1;
-    lcd_sleep(16667);
+    lcd_sleep(166670);
     LCD_WCMD = 0x11;
-    lcd_sleep(20000);
+    lcd_sleep(2000040);
     lcd_readdata();
     LCD_WCMD = 0x4;
     lcd_sleep(100);
@@ -165,9 +165,9 @@ void lcd_init_device(void)
         LCD_WCMD = 0x0;
         LCD_WCMD = 0x0;
         LCD_WCMD = 0x0;
-        lcd_sleep(7000);
+        lcd_sleep(700000);
 	lcd_writereg(0xa4, 0x1);
-        lcd_sleep(11000);
+        lcd_sleep(1100000);
 	lcd_writereg(0x1, 0x100);
 	lcd_writereg(0x2, 0x300);
 	lcd_writereg(0x3, 0x9230);
@@ -227,7 +227,7 @@ void lcd_init_device(void)
 	lcd_writereg(0x9b, 0x300);
 	LCD_WCMD = 0x0;
 	LCD_WCMD = 0x22;
-	lcd_sleep(7000);
+	lcd_sleep(700000);
 	lcd_on();
     }
 }
@@ -291,7 +291,7 @@ void lcd_update(void)
         LCD_WDATA = RGB_UNPACK_RED(*p)<<3;
         LCD_WDATA = RGB_UNPACK_GREEN(*p)<<2;
         LCD_WDATA = RGB_UNPACK_BLUE(*p)<<3;
-        lcd_sleep(1); /* if data is sent too fast to lcdif, machine freezes */
+        lcd_sleep(3); /* if data is sent too fast to lcdif, machine freezes */
     }
 }