[U-Boot] [PATCH] Update s3c24x0 timer implementation
Wolfgang Denk
wd at denx.de
Sun Oct 23 19:22:48 CEST 2011
Dear Mark Norman,
In message <CAJtrzLOvjswmuww+xNLXxeSH4QxOBZww3JrZGKCgLq5w6B=y3w at mail.gmail.com> you wrote:
>
> Since the .rel.text section is required by the relocation code, I
> assume that .bss global variables cannot be used until after
> relocation?
Why do you have to make such assumptions? That's documented
behaviour. Didn't you RTFM?
> After studying several other timer.c files I developed the following
> patch which uses the global data struct to store the global variables.
> I also restructured some of the code based on structure of the other
> timer.c files. I have confirmed it works correctly on the SBC I have.
Then please submit a proper patch - these introductury comments don;lt
belong intot he commit message and shouldbemoved into the comment
section (below the "---" line).
...
> + /* Use PWM Timer 4 because it has no output.
> + * Prescaler is hard fixed at 250, divider at 2.
> + * This generates a Timer clock frequency of 100kHz (@PCLK=50MHz) and
> + * therefore 10us timer ticks.
> + */
Incorrect multiline comment format; please fix globally.
> + /* Prescaler for Timer 4 is 250 */
> + const ulong prescaler = 250;
> + writel((prescaler-1) << 8, &timers->tcfg0);
Please move declarations up. Don't split declarations by comment
lines. Add a blank line between declarations and code.
...
> --- a/arch/arm/include/asm/global_data.h
> +++ b/arch/arm/include/asm/global_data.h
> @@ -38,9 +38,6 @@ typedef struct global_data {
> unsigned long flags;
> unsigned long baudrate;
> unsigned long have_console; /* serial_init() was called */
> -#ifdef CONFIG_PRE_CONSOLE_BUFFER
> - unsigned long precon_buf_idx; /* Pre-Console buffer index */
> -#endif
Make sure not to add such unrelated, incorrect changes!
> -#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
> - unsigned long post_log_word; /* Record POST activities */
> - unsigned long post_log_res; /* success of POST test */
> - unsigned long post_init_f_time; /* When post_init_f started */
> -#endif
Ditto.
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
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