F: drivers/clocksource/metag_generic.c
F: drivers/irqchip/irq-metag.c
F: drivers/irqchip/irq-metag-ext.c
+F: drivers/tty/metag_da.c
+F: fs/imgdafs/
MICROBLAZE ARCHITECTURE
M: Michal Simek <monstr@monstr.eu>
When disabled, Performance Counters information will be collected
based on Timer Interrupt.
+config METAG_DA
+ bool "DA support"
+ help
+ Say Y if you plan to use a DA debug adapter with Linux. The presence
+ of the DA will be detected automatically at boot, so it is safe to say
+ Y to this option even when booting without a DA.
+
+ This enables support for services provided by DA JTAG debug adapters,
+ such as:
+ - communication over DA channels (such as the console driver).
+ - use of the DA filesystem.
+
menu "Boot options"
config METAG_BUILTIN_DTB
# CONFIG_IOSCHED_CFQ is not set
CONFIG_FLATMEM_MANUAL=y
CONFIG_META12_FPGA=y
+CONFIG_METAG_DA=y
CONFIG_HZ_100=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
+CONFIG_DA_TTY=y
+CONFIG_DA_CONSOLE=y
# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_METAG_L2C=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_METAG_HALT_ON_PANIC=y
+CONFIG_METAG_DA=y
CONFIG_HZ_100=y
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
+CONFIG_DA_TTY=y
+CONFIG_DA_CONSOLE=y
# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_FLATMEM_MANUAL=y
CONFIG_METAG_HALT_ON_PANIC=y
CONFIG_SMP=y
+CONFIG_METAG_DA=y
CONFIG_HZ_100=y
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
+CONFIG_DA_TTY=y
+CONFIG_DA_CONSOLE=y
# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
--- /dev/null
+/*
+ * Meta DA JTAG debugger control.
+ *
+ * Copyright 2012 Imagination Technologies Ltd.
+ */
+
+#ifndef _METAG_DA_H_
+#define _METAG_DA_H_
+
+#ifdef CONFIG_METAG_DA
+
+#include <linux/init.h>
+#include <linux/types.h>
+
+extern bool _metag_da_present;
+
+/**
+ * metag_da_enabled() - Find whether a DA is currently enabled.
+ *
+ * Returns: true if a DA was detected, false if not.
+ */
+static inline bool metag_da_enabled(void)
+{
+ return _metag_da_present;
+}
+
+/**
+ * metag_da_probe() - Try and detect a connected DA.
+ *
+ * This is used at start up to detect whether a DA is active.
+ *
+ * Returns: 0 on detection, -err otherwise.
+ */
+int __init metag_da_probe(void);
+
+#else /* !CONFIG_METAG_DA */
+
+#define metag_da_enabled() false
+#define metag_da_probe() do {} while (0)
+
+#endif
+
+#endif /* _METAG_DA_H_ */
obj-$(CONFIG_PERF_EVENTS) += perf/
obj-$(CONFIG_METAG_COREMEM) += coremem.o
+obj-$(CONFIG_METAG_DA) += da.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_FUNCTION_TRACER) += ftrace_stub.o
obj-$(CONFIG_MODULES) += metag_ksyms.o
--- /dev/null
+/*
+ * Meta DA JTAG debugger control.
+ *
+ * Copyright 2012 Imagination Technologies Ltd.
+ */
+
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <asm/da.h>
+#include <asm/metag_mem.h>
+
+bool _metag_da_present;
+
+int __init metag_da_probe(void)
+{
+ _metag_da_present = (metag_in32(T0VECINT_BHALT) == 1);
+ if (_metag_da_present)
+ pr_info("DA present\n");
+ else
+ pr_info("DA not present\n");
+ return 0;
+}
#include <asm/hwthread.h>
#include <asm/mmzone.h>
#include <asm/l2cache.h>
+#include <asm/da.h>
#include <asm/prom.h>
#include <asm/mach/arch.h>
#include <asm/core_reg.h>
extern u32 __dtb_start[];
#endif
+#ifdef CONFIG_DA_CONSOLE
+/* Our early channel based console driver */
+extern struct console dash_console;
+#endif
+
struct machine_desc *machine_desc __initdata;
/*
metag_cache_probe();
+ metag_da_probe();
+#ifdef CONFIG_DA_CONSOLE
+ if (metag_da_enabled()) {
+ /* An early channel based console driver */
+ register_console(&dash_console);
+ add_preferred_console("ttyDA", 1, NULL);
+ }
+#endif
+
/* try interpreting the argument as a device tree */
machine_desc = setup_machine_fdt(original_cmd_line);
/* if it doesn't look like a device tree it must be a command line */