On 10/22/2015 04:01 PM, Praneeth Bajjuri wrote:
> UART4 low level debug support. This helps in debugging with UART4
> serial console output on DRA7 based platforms.
>
> Extending the following fix for UART4.
> commit 1c7e36bfc3e2 ("ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL enabled on UART3")
>
> For using DEBUG_LL, enable CONFIG_DEBUG_OMAP4UART4 in menuconfig.
> On DRA7, UART4 hwmod doesn't have this flag enabled,
> failure observed when UART4 is used for low level debugging.
>
> Hence, Enable DEBUG_OMAP4UART4_FLAGS for UART4 hwmod.
>
> Signed-off-by: J.D. Schroeder <jay.schroeder@xxxxxxxxxx>
> Signed-off-by: Praneeth Bajjuri <praneeth@xxxxxx>
> ---
> arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> index 562247b..a242572 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
> @@ -2065,7 +2065,7 @@ static struct omap_hwmod dra7xx_uart4_hwmod = {
> .class = &dra7xx_uart_hwmod_class,
> .clkdm_name = "l4per_clkdm",
> .main_clk = "uart4_gfclk_mux",
> - .flags = HWMOD_SWSUP_SIDLE_ACT,
> + .flags = HWMOD_SWSUP_SIDLE_ACT | DEBUG_OMAP4UART4_FLAGS,
> .prcm = {
> .omap4 = {
> .clkctrl_offs = DRA7XX_CM_L4PER_UART4_CLKCTRL_OFFSET,
>
are there other uarts that may need this to be done?
--
Regards,
Nishanth Menon
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