[PATCH 1/2] OMAP1/2/3/4: DEBUG_LL run time detection

[Shilimkar, Santosh]

Vikram,
> -----Original Message-----
> From: linux-omap-owner at vger.kernel.org [mailto:linux-omap-
> owner at vger.kernel.org] On Behalf Of Pandita, Vikram
> Sent: Saturday, September 19, 2009 6:10 AM
> To: linux-arm-kernel at lists.infradead.org; linux-omap at vger.kernel.org
> Cc: Pandita, Vikram; Russell King; Kevin Hilman
> Subject: [PATCH 1/2] OMAP1/2/3/4: DEBUG_LL run time detection


> +u32 get_uart_base(void)
> +{
> +	static u32  omap_uart_debug_ll_phy_addr;
> +
> +	if (omap_uart_debug_ll_phy_addr)
> +		return omap_uart_debug_ll_phy_addr;
> +
> +	/* Add logic here for new platforms, using __machine_arch_type */
> +
> +	/* TODO: REVISIT -- Check Completeness
> +	 * DEFINE PHY ADDRESS for EACH BOARD HERE: omap1/2/3/4 */
> +#if defined(CONFIG_ARCH_OMAP1)
> +	switch (__machine_arch_type) {
> +	case MACH_TYPE_OMAP_PALMTT:
> +	case MACH_TYPE_SX1:
> +		/* UART2 */
> +		omap_uart_debug_ll_phy_addr = (u32 *)0xfffb0800;
> +	break;
> +	default:
> +			/* UART1 */
> +		omap_uart_debug_ll_phy_addr = (u32 *)0xfffb0000;
> +	break;
> +	}
> +#endif
> +
> +#if defined(CONFIG_ARCH_OMAP2)
> +	switch (__machine_arch_type) {
> +	case MACH_TYPE_NOKIA_N800:
> +	case MACH_TYPE_NOKIA_N810:
> +	case MACH_TYPE_NOKIA_N810_WIMAX:
> +		/* UART3 */
> +		omap_uart_debug_ll_phy_addr = (u32 *)0x4806e000;
> +	break;
> +	default:
> +		/* UART1 */
> +		omap_uart_debug_ll_phy_addr = (u32 *)0x4806a000;
> +	break;
> +	}
> +#endif
> +
> +#if defined(CONFIG_ARCH_OMAP3)
> +	switch (__machine_arch_type) {
> +	case MACH_TYPE_OMAP_LDP:
> +	case MACH_TYPE_OVERO:
> +	case MACH_TYPE_OMAP3_PANDORA:
> +	case MACH_TYPE_NOKIA_RX51:
> +	case MACH_TYPE_OMAP3_BEAGLE:
> +		/* UART3 */
> +		omap_uart_debug_ll_phy_addr = 0x49020000;
> +	break;
> +	case MACH_TYPE_OMAP_ZOOM2:
> +		/* EXTERNEL UART */
> +		omap_uart_debug_ll_phy_addr = 0x10000000;
> +	break;
> +	default:
> +		/* UART1 */
> +		omap_uart_debug_ll_phy_addr = 0x4806a000;
> +	break;
> +	}
> +#endif
> +
> +#ifdef CONFIG_ARCH_OMAP4
> +	switch (__machine_arch_type) {
> +	/* OMAP3: UART1 */
> +	case MACH_TYPE_OMAP_4430SDP:
> +	default:
> +		omap_uart_debug_ll_phy_addr = (u32 *)0x4806a000;
> +	break;
> +	}
> +#endif
> +
> +	return omap_uart_debug_ll_phy_addr;
> +}
This makes only UART1 as a DEBUG_LL option for OMAP4. Will we not have options any more to select rest of the UARTs for DEBUG_LL as it was supported with previous Russell's implementation?


Regards,
Santosh