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arm, davinci: add NOR Boot Configuration Word

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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>
This commit is contained in:
Heiko Schocher 2011-09-14 19:59:37 +00:00 • committed by Albert ARIBAUD
parent a293181819
commit 337c433383
2 changed files with 18 additions and 0 deletions
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9
arch/arm/cpu/arm926ejs/start.S
View file

@ -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 .globl _start
_start: _start:
b reset b reset
#endif
#ifdef CONFIG_SPL_BUILD #ifdef CONFIG_SPL_BUILD
/* No exception handlers in preloader */ /* No exception handlers in preloader */
ldr pc, _hang ldr pc, _hang

9
doc/README.davinci
View file

@ -139,3 +139,12 @@ http://www.spectrumdigital.com/product_info.php?cPath=37&products_id=214
7) TI DA850 EVM 7) TI DA850 EVM
http://focus.ti.com/docs/prod/folders/print/omap-l138.html http://focus.ti.com/docs/prod/folders/print/omap-l138.html
http://www.logicpd.com/products/development-kits/zoom-omap-l138-evm-development-kit 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