Add preliminary Octeon PCI console support. Radisys-specific PCI console

support may follow soon (it uses a proprietary memory layout, but operation
looks pretty trivial.)

2 files changed, 124 insertions, 0 deletions

diff --git a/sys/mips/cavium/files.octeon1 b/sys/mips/cavium/files.octeon1
index 103189c..adffb6a 100644
--- a/sys/mips/cavium/files.octeon1
+++ b/sys/mips/cavium/files.octeon1
@@ -45,6 +45,8 @@ mips/cavium/octe/octebus.c			optional octe
 
 mips/cavium/octopci.c				optional pci
 mips/cavium/octopci_bus_space.c			optional pci
+mips/cavium/octeon_pci_console.c		optional pci
+contrib/octeon-sdk/octeon-pci-console.c		optional pci
 
 mips/cavium/usb/octusb.c			optional usb octusb
 mips/cavium/usb/octusb_octeon.c			optional usb octusb
diff --git a/sys/mips/cavium/octeon_pci_console.c b/sys/mips/cavium/octeon_pci_console.c
new file mode 100644
index 0000000..3558d52
--- /dev/null
+++ b/sys/mips/cavium/octeon_pci_console.c
@@ -0,0 +1,122 @@
+/*-
+ * Copyright (c) 2012 Juli Mallett <jmallett@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/cons.h>
+#include <sys/kernel.h>
+#include <sys/reboot.h>
+
+#include <contrib/octeon-sdk/cvmx.h>
+#include <contrib/octeon-sdk/cvmx-bootmem.h>
+#include <contrib/octeon-sdk/octeon-pci-console.h>
+
+static cn_probe_t opcic_cnprobe;
+static cn_init_t opcic_cninit;
+static cn_term_t opcic_cnterm;
+static cn_getc_t opcic_cngetc;
+static cn_putc_t opcic_cnputc;
+static cn_grab_t opcic_cngrab;
+static cn_ungrab_t opcic_cnungrab;
+
+CONSOLE_DRIVER(opcic);
+
+static void
+opcic_cnprobe(struct consdev *cp)
+{
+	const struct cvmx_bootmem_named_block_desc *pci_console_block;
+
+	cp->cn_pri = CN_DEAD;
+
+	pci_console_block = cvmx_bootmem_find_named_block(OCTEON_PCI_CONSOLE_BLOCK_NAME);
+	if (pci_console_block == NULL)
+		return;
+
+	cp->cn_arg = (void *)(uintptr_t)pci_console_block->base_addr;
+	snprintf(cp->cn_name, sizeof cp->cn_name, "opcic@%p", cp->cn_arg);
+	cp->cn_pri = (boothowto & RB_SERIAL) ? CN_REMOTE : CN_NORMAL;
+}
+
+static void
+opcic_cninit(struct consdev *cp)
+{
+	(void)cp;
+}
+
+static void
+opcic_cnterm(struct consdev *cp)
+{
+	(void)cp;
+}
+
+static int
+opcic_cngetc(struct consdev *cp)
+{
+	uint64_t console_desc_addr;
+	char ch;
+	int rv;
+
+	console_desc_addr = (uintptr_t)cp->cn_arg;
+
+	rv = octeon_pci_console_read(console_desc_addr, 0, &ch, 1, OCT_PCI_CON_FLAG_NONBLOCK);
+	if (rv != 1)
+		return (-1);
+	return (ch);
+}
+
+static void
+opcic_cnputc(struct consdev *cp, int c)
+{
+	uint64_t console_desc_addr;
+	char ch;
+	int rv;
+
+	console_desc_addr = (uintptr_t)cp->cn_arg;
+	ch = c;
+
+	rv = octeon_pci_console_write(console_desc_addr, 0, &ch, 1, 0);
+	if (rv == -1)
+		panic("%s: octeon_pci_console_write failed.", __func__);
+}
+
+static void
+opcic_cngrab(struct consdev *cp)
+{
+	(void)cp;
+}
+
+static void
+opcic_cnungrab(struct consdev *cp)
+{
+	(void)cp;
+}