linux-firmware: add carl9170 firmware

GPLv2 firmware for carl9170, Atheros AR9170 802.11 draft-n USB driver.

Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

carl9170fw/carlfw/src/reboot.S

+	.globl _jump_to_bootcode
+	.type  _jump_to_bootcode, @function
+	_jump_to_bootcode:
+		mov.l stack_start, r0
+		mov.l @r0, sp
+		mov.l eeprom_start, r0
+		mov.l @r0, r0
+		jmp @r0
+	.align 4
+stack_start:	.long 0x00000004
+eeprom_start:	.long 0x00000000

carl9170fw/carlfw/src/uart.c

+/*
+ * carl9170 firmware - used by the ar9170 wireless device
+ *
+ * UART debug interface functions.
+ *
+ * Copyright (c) 2000-2005 ZyDAS Technology Corporation
+ * Copyright (c) 2007-2009 Atheros Communications, Inc.
+ * Copyright	2009	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2009-2011	Christian Lamparter <chunkeey@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "carl9170.h"
+#include "uart.h"
+#include "io.h"
+
+#ifdef CONFIG_CARL9170FW_DEBUG_UART
+void uart_putc(const char c)
+{
+	set(AR9170_UART_REG_TX_HOLDING, c);
+
+	while (get(AR9170_UART_REG_LINE_STATUS) &
+	       AR9170_UART_LINE_STS_TX_FIFO_ALMOST_EMPTY) {
+		/*
+		 * wait until the byte has made it
+		 */
+	}
+}
+
+void uart_print_hex_dump(const void *buf, const int len)
+{
+	unsigned int offset = 0;
+
+	uart_putc('H');
+	uart_putc('D');
+	uart_putc(':');
+
+	while (len > 0) {
+		uart_putc(*((uint8_t *) buf + offset));
+		offset++;
+	}
+}
+
+void uart_init(void)
+{
+	unsigned int timeout = 0;
+
+#ifdef CONFIG_CARL9170FW_UART_CLOCK_25M
+	set(AR9170_UART_REG_DIVISOR_LSB, 0xc);
+#elif CONFIG_CARL9170FW_UART_CLOCK_40M
+	set(AR9170_UART_REG_DIVISOR_LSB, 0x14);	/* 40 MHz */
+	set(AR9170_UART_REG_REMAINDER, 0xb38e);
+#else
+#error "Unsupported UART clock"
+#endif /* CARL9170FW_UART_CLOCK_25M */
+
+	while (get(AR9170_UART_REG_LINE_STATUS) &
+	       AR9170_UART_LINE_STS_TRANSMITTER_EMPTY) {
+		if (timeout++ >= 10000)
+			break;
+	}
+}
+#endif /* CONFIG_CARL9170FW_DEBUG_UART */

carl9170fw/carlfw/usb/Kconfig

+menu "USB Firmware Configuration Settings"
+
+config CARL9170FW_USB_STANDARD_CMDS
+	def_bool y
+	prompt "Basic USB Interface"
+	---help---
+	 Allows the device to be queried about Standard USB 2.0 Device
+	 Description Descriptors.
+
+	 Say Y, unless you don't care if lsusb -v fails.
+
+config CARL9170FW_USB_UP_STREAM
+	def_bool y
+	prompt "USB Upload Stream"
+	---help---
+	 This features allows the USB silicon to combine small, single
+	 frames into bigger transfers. This can help to reduce
+	 some per-transfer overhead in the application.
+
+	 Say Y, unless you have experienced strange rx corruptions.
+
+config CARL9170FW_USB_DN_STREAM
+	def_bool n
+	prompt "USB Download Stream"
+
+config CARL9170FW_DEBUG_USB
+	def_bool y
+	prompt "Pass debug messages through USB transport"
+	---help---
+	 Report all firmware messages through the USB transport.
+	 But there is a catch: In case of a BUG, the USB transport
+	 needs to be functional, otherwise the application won't
+	 receive anything.
+
+	 Say Y.
+
+endmenu

carl9170fw/config/CMakeLists.txt

+cmake_minimum_required(VERSION 2.8)
+
+project(config)
+
+#set(CMAKE_VERBOSE_MAKEFILE ON)
+
+find_package(BISON REQUIRED)
+find_package(FLEX REQUIRED)
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/../include/generated")
+
+LIST(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../extra")
+FIND_PACKAGE(GPERF REQUIRED)
+
+BISON_TARGET(zconf zconf.y zconf.tab.c COMPILE_FLAGS "-l -b zconf -p zconf -t")
+FLEX_TARGET(zconfscan zconf.l zconf.lex.c COMPILE_FLAGS "-Pzconf -L")
+GPERF_TARGET(zconfhash zconf.gperf zconf.hash.c)
+
+SET(zconf_deps ${FLEX_zconfscan_OUTPUTS} ${GPERF_zconfhash_OUTPUTS})
+SET_SOURCE_FILES_PROPERTIES(${BISON_zconf_OUTPUTS}
+      PROPERTIES OBJECT_DEPENDS "${zconf_deps}")
+
+set(conf_src conf.c ${BISON_zconf_OUTPUTS})
+
+add_executable(conf ${conf_src})