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authorHeiko Schocher <hs@denx.de>2011-09-14 19:59:37 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-09-30 22:00:59 +0200
commit337c4333834f9aa7f7a31391ca1bef01ade2ed9c (patch)
treeeb30516fbdde4e1c90c5df34d8e42a99a931cb71
parenta29318181918c1c78ae298b8a6475ff60fa36721 (diff)
downloadblackbird-obmc-uboot-337c4333834f9aa7f7a31391ca1bef01ade2ed9c.tar.gz
blackbird-obmc-uboot-337c4333834f9aa7f7a31391ca1bef01ade2ed9c.zip
arm, davinci: add NOR Boot Configuration Word
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> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
-rw-r--r--arch/arm/cpu/arm926ejs/start.S9
-rw-r--r--doc/README.davinci9
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S
index d164d6d6ca..5e30745057 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 0204372a2f..5f1bdc836c 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
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