X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fx86%2Fcpu%2Fstart.S;h=5b4ee79d88473f4a99c29b4e384280a24a1a37ae;hb=902ca5bdf37841c0b892317be603edb41f7cbc03;hp=e2b5ef4b742173919401c1dd7ae99f84c00e6ae7;hpb=57b10f59b7c6ff0d3827e39acb6c3e348adbc14a;p=u-boot

diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S
index e2b5ef4b74..5b4ee79d88 100644
--- a/arch/x86/cpu/start.S
+++ b/arch/x86/cpu/start.S
@@ -115,8 +115,10 @@ car_init_ret:
 #endif
 #else
 	/*
-	 * When we get here after car_init(), esp points to a temporary stack
-	 * and esi holds the HOB list address returned by the FSP.
+	 * U-Boot enters here twice. For the first time it comes from
+	 * car_init_done() with esp points to a temporary stack and esi
+	 * set to zero. For the second time it comes from fsp_init_done()
+	 * with esi holding the HOB list address returned by the FSP.
 	 */
 #endif
 	/* Set up global data */
@@ -124,14 +126,9 @@ car_init_ret:
 	call	board_init_f_mem
 	mov	%eax, %esp
 
-	/*
-	 * Debug UART is available here although it may not be plumbed out
-	 * to pins depending on the board. To use it:
-	 *
-	 * call  debug_uart_init
-	 * mov   $'a', %eax
-	 * call  printch
-	 */
+#ifdef CONFIG_DEBUG_UART
+	call	debug_uart_init
+#endif
 
 	/* Get address of global_data */
 	mov	%fs:0, %edx