davinci: Initial support for Omapl138-Hawkboard

This patch adds initial support for the Hawkboard-L138 system
It is under the machine name "omapl138_hawkboard".
This system is based on the da850 davinci CPU architecture.
Information on these system may be found at http://www.hawkboard.org.
Basic support for the UART console is included in this patch.
It's tested with latest Angstrom File Systems like ramdisk
from http://alturl.com/imb45.

Signed-off-by: Victor Rodriguez <victor.rodriguez@sasken.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

4 files changed, 74 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 9aca60cb4241..b77b860b36d7 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -193,6 +193,14 @@ config MACH_MITYOMAPL138
           System on Module.  Information on this SoM may be found at
           http://www.mitydsp.com
 
+config MACH_OMAPL138_HAWKBOARD
+        bool "TI AM1808 / OMAPL-138 Hawkboard platform"
+        depends on ARCH_DAVINCI_DA850
+        help
+          Say Y here to select the TI AM1808 / OMAPL-138 Hawkboard platform .
+          Information of this board may be found at
+          http://www.hawkboard.org/
+
 config DAVINCI_MUX
         bool "DAVINCI multiplexing support"
         depends on ARCH_DAVINCI
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index a7a70d1ba363..0b87a1ca2bb3 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_MACH_DAVINCI_DA830_EVM)	+= board-da830-evm.o
 obj-$(CONFIG_MACH_DAVINCI_DA850_EVM)    += board-da850-evm.o
 obj-$(CONFIG_MACH_TNETV107X)            += board-tnetv107x-evm.o
 obj-$(CONFIG_MACH_MITYOMAPL138)         += board-mityomapl138.o
+obj-$(CONFIG_MACH_OMAPL138_HAWKBOARD)   += board-omapl138-hawk.o
 
 # Power Management
 obj-$(CONFIG_CPU_FREQ)                  += cpufreq.o
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
new file mode 100644
index 000000000000..c472dd88ad91
--- /dev/null
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -0,0 +1,64 @@
+/*
+ * Hawkboard.org based on TI's OMAP-L138 Platform
+ *
+ * Initial code: Syed Mohammed Khasim
+ *
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of
+ * any kind, whether express or implied.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/cp_intc.h>
+#include <mach/da8xx.h>
+
+static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
+        .enabled_uarts = 0x7,
+};
+
+static __init void omapl138_hawk_init(void)
+{
+        int ret;
+
+        davinci_serial_init(&omapl138_hawk_uart_config);
+
+        ret = da8xx_register_watchdog();
+        if (ret)
+                pr_warning("omapl138_hawk_init: "
+                        "watchdog registration failed: %d\n",
+                        ret);
+}
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+static int __init omapl138_hawk_console_init(void)
+{
+        if (!machine_is_omapl138_hawkboard())
+                return 0;
+
+        return add_preferred_console("ttyS", 2, "115200");
+}
+console_initcall(omapl138_hawk_console_init);
+#endif
+
+static void __init omapl138_hawk_map_io(void)
+{
+        da850_init();
+}
+
+MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
+        .phys_io        = IO_PHYS,
+        .io_pg_offst    = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
+        .boot_params    = (DA8XX_DDR_BASE + 0x100),
+        .map_io         = omapl138_hawk_map_io,
+        .init_irq       = cp_intc_init,
+        .timer          = &davinci_timer,
+        .init_machine   = omapl138_hawk_init,
+MACHINE_END
diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h
index d370391d6f31..47723e8d75a4 100644
--- a/arch/arm/mach-davinci/include/mach/uncompress.h
+++ b/arch/arm/mach-davinci/include/mach/uncompress.h
@@ -89,6 +89,7 @@ static inline void __arch_decomp_setup(unsigned long arch_id)
                 DEBUG_LL_DA8XX(davinci_da830_evm,       2);
                 DEBUG_LL_DA8XX(davinci_da850_evm,       2);
                 DEBUG_LL_DA8XX(mityomapl138,            1);
+                DEBUG_LL_DA8XX(omapl138_hawkboard,      2);
 
                 /* TNETV107x boards */
                 DEBUG_LL_TNETV107X(tnetv107x,           1);