From b2c4bd3a53f06699d601e73a7fa0732611e99f7f Mon Sep 17 00:00:00 2001
From: Karl Kurbjun <kkurbjun@gmail.com>
Date: Fri, 10 Apr 2009 04:48:44 +0000
Subject: M:Robe 500: Remove some dead test code in bootloader, reorganize the
 bootloader link script, and remove an unnecessary lcd disable/enable in
 initialization.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20674 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/tms320dm320/boot.lds           | 115 ++++++++++++++-------
 firmware/target/arm/tms320dm320/crt0.S             |   2 +-
 .../target/arm/tms320dm320/mrobe-500/lcd-mr500.c   |   4 -
 3 files changed, 77 insertions(+), 44 deletions(-)

(limited to 'firmware/target')

diff --git a/firmware/target/arm/tms320dm320/boot.lds b/firmware/target/arm/tms320dm320/boot.lds
index e391526dc5..ff8203ccd8 100644
--- a/firmware/target/arm/tms320dm320/boot.lds
+++ b/firmware/target/arm/tms320dm320/boot.lds
@@ -6,24 +6,42 @@ OUTPUT_FORMAT(elf32-littlearm)
 OUTPUT_ARCH(arm)
 STARTUP(target/arm/tms320dm320/crt0.o)
 
-#define LCD_BUFFER_SIZE  (LCD_WIDTH*LCD_HEIGHT*2)
+#ifdef DEBUG
+#define STUBOFFSET 0x10000
+#else
+#define STUBOFFSET 0
+#endif
+
+#ifndef LCD_NATIVE_WIDTH
+#define LCD_NATIVE_WIDTH LCD_WIDTH
+#endif
+
+#ifndef LCD_NATIVE_HEIGHT
+#define LCD_NATIVE_HEIGHT LCD_HEIGHT
+#endif
+
+#define LCD_FUDGE       LCD_NATIVE_WIDTH%32
+
+#define LCD_BUFFER_SIZE  ((LCD_NATIVE_WIDTH+LCD_FUDGE)*LCD_NATIVE_HEIGHT*2)
 
 /* must be 16Kb (0x4000) aligned */
 #define TTB_SIZE         (0x4000)
 
-#define DRAMSIZE (MEMORYSIZE * 0x100000) - TTB_SIZE - LCD_BUFFER_SIZE
+/* Give this 1 meg to allow it to align to the MMU boundary */
+#define LCD_TTB_AREA    0x100000
+
+#define BOOT_OFFSET     0x1000000
 
-#define DRAMORIG 0x01900000 /* actually it's 0x00900000 */
-#define IRAMORIG 0x00000000
-#define IRAMSIZE 16K
-#define FLASHORIG 0x00100000
-#define FLASHSIZE 8M
+#define DRAMSIZE (MEMORYSIZE * 0x100000) - STUBOFFSET - BOOT_OFFSET
 
-/* Now we have the LCD buffer */
-#define LCDBEGIN (DRAMSIZE+0x00900000)
+#define DRAMORIG    (0x00900000+BOOT_OFFSET) /* actually it's 0x00900000 */
+#define IRAMORIG    0x00000000
+#define IRAMSIZE    0x4000
+#define FLASHORIG   0x00100000
+#define FLASHSIZE   8M
 
-/* Finally the TTB table */
-#define TTBBEGIN (LCDBEGIN + LCD_BUFFER_SIZE)
+/* End of the audio buffer, where the codec buffer starts */
+#define TTB_BEGIN   (DRAMORIG + DRAMSIZE - LCD_TTB_AREA)
 
 MEMORY
 {
@@ -40,7 +58,6 @@ SECTIONS
         loadaddress = .;
         _loadaddress = .;
         *(.init.text)
-        *(.icode)
         *(.text*)
         *(.glue_7)
         *(.glue_7t)
@@ -53,7 +70,6 @@ SECTIONS
         *(.rodata*)
         *(.rodata.str1.1)
         *(.rodata.str1.4)
-        *(.irodata)
         . = ALIGN(0x4);
 
         /* Pseudo-allocate the copies of the data sections */
@@ -61,31 +77,11 @@ SECTIONS
     } > DRAM
 
     .data : {
-        *(.idata)
         *(.data*)
         . = ALIGN(0x4);
         _dataend = . ;
     } > DRAM
 
-    .stack :
-    {
-         *(.stack)
-         _stackbegin = .;
-         stackbegin = .;
-         . += 0x2000;
-         _stackend = .;
-         stackend = .;
-    } > DRAM
-
-    .bss :
-    {
-         _edata = .;
-         *(.bss*);
-         *(.ibss);
-         *(COMMON)
-         _end = .;
-    } > DRAM
-
     .vectors IRAMORIG :
     {
         _vectorsstart = .;
@@ -94,16 +90,57 @@ SECTIONS
         KEEP(*(.vectors));
         *(.vectors);
         _vectorsend = .;
-    } AT > DRAM
+    } > IRAM AT > DRAM
     _vectorscopy = LOADADDR(.vectors);
     
-    .lcdbuffer LCDBEGIN (NOLOAD) :
+    .iram :
     {
-        _lcdbuf = .;
-    }
+        _iramstart = .;
+        *(.icode)
+        *(.irodata*)
+        *(.idata)
+        . = ALIGN(0x4);
+        _iramend = .;
+    } > IRAM AT> DRAM
+
+    _iramcopy = LOADADDR(.iram);
+    
+    .ibss (NOLOAD) :
+    {
+        _iedata = .;
+        *(.ibss)
+        . = ALIGN(0x4);
+        _iend = .;
+    } > IRAM
+
+    .stack (NOLOAD) :
+    {
+         *(.stack)
+         stackbegin = .;
+         . += 0x2000;
+         stackend = .;
+    } > IRAM
+    
+ 	.bss (NOLOAD) :
+    {
+    	. = ADDR(.data) + SIZEOF(.data) + SIZEOF(.vectors) + SIZEOF(.iram);
+       	_edata = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(0x4);
+       	_end = .;
+    } > DRAM
     
-    .ttbtable TTBBEGIN (NOLOAD) :
+    .ttbtable TTB_BEGIN (NOLOAD) :
     {
+        . = ALIGN (0x4000);
         _ttbstart = .;
-    }
+        . += TTB_SIZE;
+    } > DRAM
+    
+    .lcdbuffer (NOLOAD) :
+    {
+        _lcdbuf = .;
+        . += LCD_BUFFER_SIZE;
+    } > DRAM
 }
diff --git a/firmware/target/arm/tms320dm320/crt0.S b/firmware/target/arm/tms320dm320/crt0.S
index a5a965b9c2..0243c13971 100755
--- a/firmware/target/arm/tms320dm320/crt0.S
+++ b/firmware/target/arm/tms320dm320/crt0.S
@@ -54,7 +54,7 @@ start:
     orr    r0, r0, #0x00000002
     mcr    p15, 0, r0, c1, c0, 0
 
-#if !defined(BOOTLOADER) && !defined(STUB)
+#if !defined(STUB)
     /* Zero out IBSS */
     ldr    r2, =_iedata
     ldr    r3, =_iend
diff --git a/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c b/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c
index 1334eeaf8d..54e1dc0cf2 100644
--- a/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c
+++ b/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c
@@ -127,8 +127,6 @@ void lcd_init_device(void)
     /* Clear the Frame */
     memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
 
-	lcd_sleep();
-
 	IO_OSD_OSDWINMD0&=~(0x0001);
 	IO_OSD_VIDWINMD&=~(0x0001);
 
@@ -242,8 +240,6 @@ void lcd_init_device(void)
 
 	IO_OSD_OSDWINMD0|=0x01;
 	IO_VID_ENC_VMOD|=0x01;
-	
-	lcd_enable(true);
 }
 
 /* Update a fraction of the display. */
-- 
cgit v1.2.3