From: MyungJoo Ham <MyungJoo.Ham@samsung.com>
Date: Sun, 24 Jan 2010 06:01:23 +0000 (+0900)
Subject: s5pc110: Initialize Async Bridge Registers (EVT1 LSI Guide)
X-Git-Tag: JA09_20100125~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cf21e825172f9c72cf5b495d20a97d114b255613;p=kernel%2Fu-boot.git

s5pc110: Initialize Async Bridge Registers (EVT1 LSI Guide)
---

diff --git a/board/samsung/universal/lowlevel_init.S b/board/samsung/universal/lowlevel_init.S
index fc3745d..151defc 100644
--- a/board/samsung/universal/lowlevel_init.S
+++ b/board/samsung/universal/lowlevel_init.S
@@ -48,6 +48,80 @@ _TEXT_BASE:
 lowlevel_init:
 	mov	r11, lr
 
+	/*
+	 * Initialize Async Register Setting for EVT1
+	 * Because we are setting EVT1 as the default value of EVT0,
+	 * setting EVT0 as well does not make things worse.
+	 * Thus, for the simplicity, we set for EVT0, too
+	 *
+	 * The "Async Registers" are:
+	 *	0xE0F0_0000
+	 *	0xE1F0_0000
+	 *	0xF180_0000
+	 *	0xF190_0000
+	 *	0xF1A0_0000
+	 *	0xF1B0_0000
+	 *	0xF1C0_0000
+	 *	0xF1D0_0000
+	 *	0xF1E0_0000
+	 *	0xF1F0_0000
+	 *	0xFAF0_0000
+	 */
+	ldr     r0, =0xe0f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xe1f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1800000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1900000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1a00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1b00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1c00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1d00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1e00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xfaf00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
 	/* r5 has always zero */
 	mov	r5, #0