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    SubjectRe: [PATCH 1/2] ARM: msm: Add support for MSM8974 Dragonboard
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    Date
    On Mon, 2013-08-05 at 16:02 -0700, Rohit Vaswani wrote:
    > This patch adds basic board support for MSM8974 Dragonboard
    > which belongs to the Snapdragon 800 family.
    > For now, just support a basic machine with device tree.
    >
    > Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
    > ---
    > arch/arm/boot/dts/Makefile | 3 ++-
    > arch/arm/boot/dts/msm8974-db.dts | 26 ++++++++++++++++++++++++++
    > arch/arm/mach-msm/Kconfig | 21 ++++++++++++++++++---
    > arch/arm/mach-msm/Makefile | 1 +
    > arch/arm/mach-msm/board-dt-8974.c | 23 +++++++++++++++++++++++
    > 5 files changed, 70 insertions(+), 4 deletions(-)
    > create mode 100644 arch/arm/boot/dts/msm8974-db.dts
    > create mode 100644 arch/arm/mach-msm/board-dt-8974.c

    Thanks.

    Tested-by: Ivan T. Ivanov <iivanov@mm-sol.com>

    Attached patch enables earlyprink for this board.

    [920] booting linux @ 0x8000, ramdisk @ 0x2000000 (1067699), tags/device tree @ 0x1e00000
    Uncompressing Linux... done, booting the kernel.
    [ 0.000000] Booting Linux on physical CPU 0x0
    [ 0.000000] Linux version 3.11.0-rc4-00003-g7c8394e (iivanov@dev) (gcc version 4.6.3 (GCC) ) #502 SMP PREEMPT Tue Aug 6 12:09:07 EEST3
    [ 0.000000] CPU: ARMv7 Processor [512f06f0] revision 0 (ARMv7), cr=10c5387d
    [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
    [ 0.000000] Machine: Qualcomm MSM (Flattened Device Tree), model: Qualcomm MSM8974 Dragonboard
    ....

    From 7c8394ea8d926cc90c90c76aa48c5cee88f2f149 Mon Sep 17 00:00:00 2001
    From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
    Date: Wed, 5 Jun 2013 17:35:40 +0300
    Subject: [PATCH] msm: Add low-level debugging via MSM 8974 UART

    Enable low-level debug print routines to direct their
    output to the serial port on MSM 8974 devices.

    Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
    ---
    arch/arm/Kconfig.debug | 8 ++++++++
    arch/arm/mach-msm/board-dt-8974.c | 2 ++
    arch/arm/mach-msm/include/mach/msm_iomap.h | 4 ++++
    3 files changed, 14 insertions(+)

    diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
    index 583f4a0..4a8584f 100644
    --- a/arch/arm/Kconfig.debug
    +++ b/arch/arm/Kconfig.debug
    @@ -323,6 +323,14 @@ choice
    Say Y here if you want the debug print routines to direct
    their output to the serial port on MSM 8960 devices.

    + config DEBUG_MSM8974_UART
    + bool "Kernel low-level debugging messages via MSM 8974 UART"
    + depends on ARCH_MSM8974
    + select MSM_HAS_DEBUG_UART_HS
    + help
    + Say Y here if you want the debug print routines to direct
    + their output to the serial port on MSM 8974 devices.
    +
    config DEBUG_MVEBU_UART
    bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
    depends on ARCH_MVEBU
    diff --git a/arch/arm/mach-msm/board-dt-8974.c b/arch/arm/mach-msm/board-dt-8974.c
    index 697623e..0ce016a 100644
    --- a/arch/arm/mach-msm/board-dt-8974.c
    +++ b/arch/arm/mach-msm/board-dt-8974.c
    @@ -12,6 +12,7 @@

    #include <linux/of_platform.h>
    #include <asm/mach/arch.h>
    +#include <asm/mach/map.h>

    static const char * const msm8974_dt_match[] __initconst = {
    "qcom,msm8974-db",
    @@ -20,4 +21,5 @@ static const char * const msm8974_dt_match[] __initconst = {

    DT_MACHINE_START(MSM8974_DT, "Qualcomm MSM (Flattened Device Tree)")
    .dt_compat = msm8974_dt_match,
    + .map_io = debug_ll_io_init,
    MACHINE_END
    diff --git a/arch/arm/mach-msm/include/mach/msm_iomap.h b/arch/arm/mach-msm/include/mach/msm_iomap.h
    index c56e81f..7e08189 100644
    --- a/arch/arm/mach-msm/include/mach/msm_iomap.h
    +++ b/arch/arm/mach-msm/include/mach/msm_iomap.h
    @@ -59,6 +59,10 @@
    #define MSM_DEBUG_UART_BASE 0xE1000000
    #define MSM_DEBUG_UART_PHYS MSM_UART3_PHYS
    #endif
    +#ifdef CONFIG_DEBUG_MSM8974_UART
    +#define MSM_DEBUG_UART_BASE 0xfa71e000
    +#define MSM_DEBUG_UART_PHYS 0xf991e000
    +#endif

    /* Virtual addresses shared across all MSM targets. */
    #define MSM_CSR_BASE IOMEM(0xE0001000)
    --
    1.7.9.5
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