[U-Boot] [PATCH] omap3evm: Move function to identify board revision
Premi, Sanjeev
premi at ti.com
Tue Oct 19 18:38:25 CEST 2010
> -----Original Message-----
> From: Premi, Sanjeev
> Sent: Tuesday, October 19, 2010 6:37 PM
> To: u-boot at lists.denx.de
> Cc: Premi, Sanjeev
> Subject: [PATCH] omap3evm: Move function to identify board revision
>
> Function omap3_evm_get_revision() - to identify the
> board revision was called at end of setup_net_chip().
>
> Board revision can be ascertained only by identifying
> the Ethernet chipset - but combining setup operations
> with revision detection isn;t a good idea.
>
> Moved the function and added detailed comment to set
> the context.
>
> Signed-off-by: Sanjeev Premi <premi at ti.com>
> ---
> board/ti/evm/evm.c | 9 ++++++---
> 1 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/board/ti/evm/evm.c b/board/ti/evm/evm.c
> index 73330db..6163b12 100644
> --- a/board/ti/evm/evm.c
> +++ b/board/ti/evm/evm.c
> @@ -109,6 +109,12 @@ int misc_init_r(void)
>
> #if defined(CONFIG_CMD_NET)
> setup_net_chip();
> +
> + /*
> + * Board revision can be ascertained only by identifying
> + * the Ethernet chipset.
> + */
> + omap3_evm_get_revision();
> #endif
[sp] While reviewing the code, I realized a "latent" bug that
can hit us when CONFIG_CMD_NET is not defined.
omap3_evm_get_revision() never gets called - value of
omap3_evm_version is never set. So, value returned by
get_omap3_evm_rev() depends upon compiler used.
Please disregard this patch. I will submit a cleaned-up
patch with takes care of this "latent" bug as well.
~sanjeev
>
> dieid_num_r();
> @@ -163,9 +169,6 @@ static void setup_net_chip(void)
> writel(GPIO0, &gpio3_base->cleardataout);
> udelay(1);
> writel(GPIO0, &gpio3_base->setdataout);
> -
> - /* determine omap3evm revision */
> - omap3_evm_get_revision();
> }
>
> int board_eth_init(bd_t *bis)
> --
> 1.7.2.2
>
>
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