Hi all, Got a zoom3 finally! This is needed to boot with DEBUG_LL + earlyprintk. Regards, Tony
>From d1fa6f3fbc46546f3ade9026dcba80d6fd5bd6bd Mon Sep 17 00:00:00 2001 From: Tony Lindgren <tony@xxxxxxxxxxx> Date: Fri, 19 Mar 2010 17:18:45 -0700 Subject: [PATCH] arm: Fix DEBUG_LL for omap zoom2/3 Zoom2 and 3 have UARTs only on the external debug board. GPMC needs to be mapped early to use it for DEBUG_LL. Note that with the pending serial.c patches you need to set console=ttyS0,115200n8 as it will be the only UART mapped. To use DEBUG_LL, you need to pass also earlyprintk in cmdline. Cc: Allen Pais <allen.pais@xxxxxx> Cc: Vikram Pandita <vikram.pandita@xxxxxx> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index eb62bf9..bd23aa9 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -328,6 +328,15 @@ __create_page_tables: add r0, r4, #0xd8000000 >> 18 str r3, [r0] #endif +if defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3) + /* + * Zoom2 and Zoom3 have UARTs only on the debug board. + * The debug board is connected to the GPMC. + */ + add r0, r4, #0xfb000000 >> 18 + orr r3, r7, #0x10000000 + str r3, [r0] +#endif #endif mov pc, lr ENDPROC(__create_page_tables)
