[U-Boot] [RFC PATCH] i2c: i2c-uclass-compat: avoid any BSS usage

[Heiko Schocher]

Hello Vignesh,

Am 25.07.2016 um 12:56 schrieb Vignesh R:
> As I2C can be used before DRAM initialization for reading EEPROM,
> avoid using static variables stored in BSS, since BSS is in DRAM, which
> may not have been initialised yet. Explicitly mark "static global"
> variables as belonging to the .data section.
>
> Signed-off-by: Vignesh R <vigneshr at ti.com>
> ---
>   drivers/i2c/i2c-uclass-compat.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Heiko Schocher<hs at denx.de>

bye,
Heiko
>
> diff --git a/drivers/i2c/i2c-uclass-compat.c b/drivers/i2c/i2c-uclass-compat.c
> index 5606d1f807f6..de78db6a887f 100644
> --- a/drivers/i2c/i2c-uclass-compat.c
> +++ b/drivers/i2c/i2c-uclass-compat.c
> @@ -9,7 +9,7 @@
>   #include <errno.h>
>   #include <i2c.h>
>
> -static int cur_busnum;
> +static int cur_busnum __attribute__((section(".data")));
>
>   static int i2c_compat_get_device(uint chip_addr, int alen,
>   				 struct udevice **devp)
>

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