Init console on ThinPad, seems not wworking properly

Signed-off-by: Harry Chen <i@harrychen.xyz>

kernel/src/arch/mipsel/board/thinpad/consts.rs

@@ -1,3 +1,3 @@
 /// board specific constants
 pub const MEMORY_END: usize = 0x8080_0000;
-pub const KERNEL_HEAP_SIZE: usize = 0x0038_0000;
+pub const KERNEL_HEAP_SIZE: usize = 0x0044_0000;

kernel/src/arch/mipsel/board/thinpad/mod.rs

@@ -24,9 +24,6 @@ pub fn init_driver() {
     // TODO: add possibly more drivers
     // timer::init();
     fb::init();
-    if let Some(fb) = fb::FRAME_BUFFER.lock().as_mut() {
-        fb.clear();
-    }
 }
 
 pub fn probe_fb_info(width: u32, height: u32, depth: u32) -> FramebufferResult {

kernel/src/arch/mipsel/driver/mod.rs

@@ -13,4 +13,7 @@ pub fn init() {
     assert_has_not_been_called!("driver::init must be called only once");
     board::init_driver();
     console::init();
+    if let Some(con) = console::CONSOLE.lock().as_mut() {
+        con.clear();
+    }
 }