> -Original Message-
> From: u-boot-boun...@lists.denx.de
> [mailto:u-boot-boun...@lists.denx.de] On Behalf Of Jason Kridner
> Sent: Friday, November 05, 2010 11:24 AM
> To: u-boot@lists.denx.de; beaglebo...@googlegroups.com
> Cc: Kipisz, Steven
> Subject: [U-Boot] [PATCH] ARMV7: OMAP3: BeagleBoard: Enable
> pullups on i2c2.
>
> From: Steve Kipisz
>
>
[sp] Description missing.
> Signed-off-by: Jason Kridner
> ---
> arch/arm/include/asm/arch-omap3/omap3.h |9 +
> board/ti/beagle/beagle.c|3 +++
> 2 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/include/asm/arch-omap3/omap3.h
> b/arch/arm/include/asm/arch-omap3/omap3.h
> index 3957c79..1860dff 100644
> --- a/arch/arm/include/asm/arch-omap3/omap3.h
> +++ b/arch/arm/include/asm/arch-omap3/omap3.h
> @@ -50,6 +50,15 @@/ctr
> /* CONTROL */
> #define OMAP34XX_CTRL_BASE (OMAP34XX_L4_IO_BASE + 0x2000)
>
> +/* Signal Integrity Parameter Control Registers */
> +#define CONTROL_PROG_IO0 0x48002444
> +#define CONTROL_PROG_IO1 0x48002448
> +#define CONTROL_PROG_IO2 0x48002408
> +#define CONTROL_PROG_IO_WKUP10x48002A80
[sp] Would be better if they are defined off OMAP34XX_CTRL_BASE
defined just above.
> +
> +/* Bit definition for CONTROL_PROG_IO1 */
> +#define PRG_I2C2_PULLUPRESX 0x0001
> +
> /* UART */
> #define OMAP34XX_UART1
> (OMAP34XX_L4_IO_BASE + 0x6a000)
> #define OMAP34XX_UART2
> (OMAP34XX_L4_IO_BASE + 0x6c000)
> diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
> index dd7b6b5..6074eca 100644
> --- a/board/ti/beagle/beagle.c
> +++ b/board/ti/beagle/beagle.c
> @@ -160,6 +160,9 @@ int misc_init_r(void)
> struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
> struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
>
> + /* Enable i2c2 pullup resisters */
> + *(ulong *)(CONTROL_PROG_IO1) &= ~(PRG_I2C2_PULLUPRESX);
[sp] Direct pointer access is not a good practice.
Can you look at struct ctrl and see whether it can be augmented/
similar approach can be used?
> +
> switch (get_board_revision()) {
> case REVISION_AXBX:
> printf("Beagle Rev Ax/Bx\n");
> --
> 1.5.6.4
>
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