Hemant Pedanekar <hemantp@xxxxxx> writes:
> This patch adds support for low level debugging on TI816X boards. Currently the
> support for UART3 console on TI816X EVM is added.
>
> Signed-off-by: Hemant Pedanekar <hemantp@xxxxxx>
You can add the UART base addresses in this patch since this is the only
place they are needed/used.
Kevin
> ---
> arch/arm/mach-omap2/include/mach/debug-macro.S | 12 ++++++++++++
> arch/arm/plat-omap/include/plat/serial.h | 3 +++
> arch/arm/plat-omap/include/plat/uncompress.h | 7 +++++++
> 3 files changed, 22 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S
> index 6a4d413..e1b0f17 100644
> --- a/arch/arm/mach-omap2/include/mach/debug-macro.S
> +++ b/arch/arm/mach-omap2/include/mach/debug-macro.S
> @@ -69,6 +69,12 @@ omap_uart_lsr: .word 0
> beq 34f @ configure OMAP3UART4
> cmp \rp, #OMAP4UART4 @ only on 44xx
> beq 44f @ configure OMAP4UART4
> + cmp \rp, #TI816XUART1 @ ti816x UART offsets different
> + beq 81f @ configure UART1
> + cmp \rp, #TI816XUART2 @ ti816x UART offsets different
> + beq 82f @ configure UART2
> + cmp \rp, #TI816XUART3 @ ti816x UART offsets different
> + beq 83f @ configure UART3
> cmp \rp, #ZOOM_UART @ only on zoom2/3
> beq 95f @ configure ZOOM_UART
>
> @@ -91,6 +97,12 @@ omap_uart_lsr: .word 0
> b 98f
> 44: mov \rp, #UART_OFFSET(OMAP4_UART4_BASE)
> b 98f
> +81: mov \rp, #UART_OFFSET(TI816X_UART1_BASE)
> + b 98f
> +82: mov \rp, #UART_OFFSET(TI816X_UART2_BASE)
> + b 98f
> +83: mov \rp, #UART_OFFSET(TI816X_UART3_BASE)
> + b 98f
> 95: ldr \rp, =ZOOM_UART_BASE
> mrc p15, 0, \rv, c1, c0
> tst \rv, #1 @ MMU enabled?
> diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h
> index 3c3c319..4102bf4 100644
> --- a/arch/arm/plat-omap/include/plat/serial.h
> +++ b/arch/arm/plat-omap/include/plat/serial.h
> @@ -86,6 +86,9 @@
> #define OMAP4UART2 OMAP2UART2
> #define OMAP4UART3 43
> #define OMAP4UART4 44
> +#define TI816XUART1 81
> +#define TI816XUART2 82
> +#define TI816XUART3 83
> #define ZOOM_UART 95 /* Only on zoom2/3 */
>
> /* This is only used by 8250.c for omap1510 */
> diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h
> index ad98b85..30b891c 100644
> --- a/arch/arm/plat-omap/include/plat/uncompress.h
> +++ b/arch/arm/plat-omap/include/plat/uncompress.h
> @@ -93,6 +93,10 @@ static inline void flush(void)
> #define DEBUG_LL_ZOOM(mach) \
> _DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
>
> +#define DEBUG_LL_TI816X(p, mach) \
> + _DEBUG_LL_ENTRY(mach, TI816X_UART##p##_BASE, OMAP_PORT_SHIFT, \
> + TI816XUART##p)
> +
> static inline void __arch_decomp_setup(unsigned long arch_id)
> {
> int port = 0;
> @@ -166,6 +170,9 @@ static inline void __arch_decomp_setup(unsigned long arch_id)
> DEBUG_LL_ZOOM(omap_zoom2);
> DEBUG_LL_ZOOM(omap_zoom3);
>
> + /* TI8168 base boards using UART3 */
> + DEBUG_LL_TI816X(3, ti8168evm);
> +
> } while (0);
> }
--
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