diff mbox

[U-Boot,5/8] arm, davinci: add NOR Boot Configuration Word

Message ID 1316066380-7397-6-git-send-email-hs@denx.de
State Accepted
Commit 337c4333834f9aa7f7a31391ca1bef01ade2ed9c
Headers show

Commit Message

Heiko Schocher Sept. 15, 2011, 5:59 a.m. UTC 
to add the "NOR Boot Configuration Word" on AM18xx based boards,
define CONFIG_SYS_DV_NOR_BOOT_CFG.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Paulraj Sandeep <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
---
 arch/arm/cpu/arm926ejs/start.S |    9 +++++++++
 doc/README.davinci             |    9 +++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S
index 16e35c2..9d0e3d7 100644
--- a/arch/arm/cpu/arm926ejs/start.S
+++ b/arch/arm/cpu/arm926ejs/start.S
@@ -51,9 +51,18 @@ 
  */
 
 
+#ifdef CONFIG_SYS_DV_NOR_BOOT_CFG
 .globl _start
 _start:
+.globl _NOR_BOOT_CFG
+_NOR_BOOT_CFG:
+	.word	CONFIG_SYS_DV_NOR_BOOT_CFG
 	b	reset
+#else
+.globl _start
+_start:
+	b	reset
+#endif
 #ifdef CONFIG_SPL_BUILD
 /* No exception handlers in preloader */
 	ldr	pc, _hang
diff --git a/doc/README.davinci b/doc/README.davinci
index 0204372..5f1bdc8 100644
--- a/doc/README.davinci
+++ b/doc/README.davinci
@@ -139,3 +139,12 @@  http://www.spectrumdigital.com/product_info.php?cPath=37&products_id=214
 7) TI DA850 EVM
 http://focus.ti.com/docs/prod/folders/print/omap-l138.html
 http://www.logicpd.com/products/development-kits/zoom-omap-l138-evm-development-kit
+
+Davinci special defines
+=======================
+
+CONFIG_SYS_DV_NOR_BOOT_CFG:	AM18xx based boards, booting in NOR Boot mode
+				need a "NOR Boot Configuration Word" stored
+				in the NOR Flash. This define adds this.
+				More Info about this, see:
+				spraba5a.pdf chapter 3.1