* [U-Boot] u-boot using UART1
[not found] <16B6520613CB8549B428B664E7F4A465049B6C@exch01.ta.local>
@ 2011-07-22 8:22 ` Nick Thompson
2011-07-22 8:56 ` Wolfgang Denk
0 siblings, 1 reply; 2+ messages in thread
From: Nick Thompson @ 2011-07-22 8:22 UTC (permalink / raw)
To: u-boot
Don,
Please ask u-boot questions on the u-boot mailing list.
On 22/07/11 01:03, Don McCune wrote:
>
> We are bringing up a board based on the OMAPL137 processor. The board is similar to the Spectrum Digital Evm board; however it has used UART2 for something else, so we need to make UAR1 the console line for u-boot. Could you tell us how to modify u-boot to use UART1 for its console?
>
$ grep UART include/configs/da830evm.h
#define CONFIG_SYS_NS16550_COM1 DAVINCI_UART2_BASE /* Base address of UART2 */
#define CONFIG_SYS_NS16550_CLK clk_get(DAVINCI_UART2_CLKID)
#define CONFIG_CONS_INDEX 1 /* use UART0 for console */
Just change DAVINCI_UART2_BASE to DAVINCI_UART1_BASE.
(and make sure your boot loader enables the pinmux for UART1)
>
>
> Please reply-to-all with any questions or answers. If you wish to contact us directly, please call Tim Orling at 805 269 0767.
>
>
>
> Thank you.
>
>
>
> Regards,
>
> Don McCune
>
>
Nick.
^ permalink raw reply [flat|nested] 2+ messages in thread* [U-Boot] u-boot using UART1
2011-07-22 8:22 ` [U-Boot] u-boot using UART1 Nick Thompson
@ 2011-07-22 8:56 ` Wolfgang Denk
0 siblings, 0 replies; 2+ messages in thread
From: Wolfgang Denk @ 2011-07-22 8:56 UTC (permalink / raw)
To: u-boot
Dear Nick Thompson,
In message <4E293329.9050009@ge.com> you wrote:
>
> > Could you tell us how to modify u-boot to use UART1 for its console?
>
> $ grep UART include/configs/da830evm.h
> #define CONFIG_SYS_NS16550_COM1 DAVINCI_UART2_BASE /* Base address of UART2 */
> #define CONFIG_SYS_NS16550_CLK clk_get(DAVINCI_UART2_CLKID)
> #define CONFIG_CONS_INDEX 1 /* use UART0 for console */
>
> Just change DAVINCI_UART2_BASE to DAVINCI_UART1_BASE.
Eventually it would be useful to also change the definition of
CONFIG_SYS_NS16550_CLK to refer to DAVINCI_UART1_CLKID
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"Evil does seek to maintain power by suppressing the truth."
"Or by misleading the innocent."
-- Spock and McCoy, "And The Children Shall Lead",
stardate 5029.5.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-07-22 8:22 ` [U-Boot] u-boot using UART1 Nick Thompson
2011-07-22 8:56 ` Wolfgang Denk
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