Merge branch 'virtex-for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25

Documentation/powerpc/booting-without-of.txt

@@ -2578,6 +2578,20 @@ platforms are moved over to use the flattened-device-tree model.
       Requred properties:
        - current-speed : Baud rate of uartlite
 
+      v) Xilinx hwicap
+
+		Xilinx hwicap devices provide access to the configuration logic
+		of the FPGA through the Internal Configuration Access Port
+		(ICAP).  The ICAP enables partial reconfiguration of the FPGA,
+		readback of the configuration information, and some control over
+		'warm boots' of the FPGA fabric.
+
+		Required properties:
+		- xlnx,family : The family of the FPGA, necessary since the
+                      capabilities of the underlying ICAP hardware
+                      differ between different families.  May be
+                      'virtex2p', 'virtex4', or 'virtex5'.
+
     p) Freescale Synchronous Serial Interface
 
        The SSI is a serial device that communicates with audio codecs.  It can

arch/powerpc/platforms/40x/virtex.c

@@ -37,7 +37,7 @@ static int __init virtex_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	if (!of_flat_dt_is_compatible(root, "xilinx,virtex"))
+	if (!of_flat_dt_is_compatible(root, "xlnx,virtex"))
 		return 0;
 
 	return 1;

drivers/block/xsysace.c

@@ -1202,8 +1202,10 @@ static int __devexit ace_of_remove(struct of_device *op)
 }
 
 /* Match table for of_platform binding */
-static struct of_device_id __devinit ace_of_match[] = {
-	{ .compatible = "xilinx,xsysace", },
+static struct of_device_id ace_of_match[] __devinitdata = {
+	{ .compatible = "xlnx,opb-sysace-1.00.b", },
+	{ .compatible = "xlnx,opb-sysace-1.00.c", },
+	{ .compatible = "xlnx,xps-sysace-1.00.a", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ace_of_match);

drivers/char/Kconfig

@@ -841,6 +841,16 @@ config DTLK
 	  To compile this driver as a module, choose M here: the
 	  module will be called dtlk.
 
+config XILINX_HWICAP
+	tristate "Xilinx HWICAP Support"
+	depends on XILINX_VIRTEX
+	help
+	  This option enables support for Xilinx Internal Configuration
+	  Access Port (ICAP) driver.  The ICAP is used on Xilinx Virtex
+	  FPGA platforms to partially reconfigure the FPGA at runtime.
+
+	  If unsure, say N.
+
 config R3964
 	tristate "Siemens R3964 line discipline"
 	---help---

drivers/char/Makefile

@@ -77,6 +77,7 @@ obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_SGI_DS1286)	+= ds1286.o
 obj-$(CONFIG_SGI_IP27_RTC)	+= ip27-rtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
+obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
 ifeq ($(CONFIG_GENERIC_NVRAM),y)
   obj-$(CONFIG_NVRAM)	+= generic_nvram.o
 else

drivers/char/xilinx_hwicap/Makefile

+#
+# Makefile for the Xilinx OPB hwicap driver
+#
+
+obj-$(CONFIG_XILINX_HWICAP) += xilinx_hwicap_m.o 
+ 
+xilinx_hwicap_m-y := xilinx_hwicap.o fifo_icap.o buffer_icap.o

drivers/char/xilinx_hwicap/buffer_icap.h

+/*****************************************************************************
+ *
+ *     Author: Xilinx, Inc.
+ *
+ *     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.
+ *
+ *     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
+ *     AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
+ *     SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
+ *     OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
+ *     APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
+ *     THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
+ *     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
+ *     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
+ *     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
+ *     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
+ *     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
+ *     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *     FOR A PARTICULAR PURPOSE.
+ *
+ *     Xilinx products are not intended for use in life support appliances,
+ *     devices, or systems. Use in such applications is expressly prohibited.
+ *
+ *     (c) Copyright 2003-2008 Xilinx Inc.
+ *     All rights reserved.
+ *
+ *     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.,
+ *     675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *****************************************************************************/
+
+#ifndef XILINX_BUFFER_ICAP_H_	/* prevent circular inclusions */
+#define XILINX_BUFFER_ICAP_H_	/* by using protection macros */
+
+#include <linux/types.h>
+#include <linux/cdev.h>
+#include <linux/version.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include "xilinx_hwicap.h"
+
+void buffer_icap_reset(struct hwicap_drvdata *drvdata);
+
+/* Loads a partial bitstream from system memory. */
+int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
+			     u32 Size);
+
+/* Loads a partial bitstream from system memory. */
+int buffer_icap_get_configuration(struct hwicap_drvdata *drvdata, u32 *data,
+			     u32 Size);
+
+#endif

drivers/char/xilinx_hwicap/fifo_icap.h

+/*****************************************************************************
+ *
+ *     Author: Xilinx, Inc.
+ *
+ *     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.
+ *
+ *     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
+ *     AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
+ *     SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
+ *     OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
+ *     APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
+ *     THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
+ *     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
+ *     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
+ *     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
+ *     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
+ *     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
+ *     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *     FOR A PARTICULAR PURPOSE.
+ *
+ *     Xilinx products are not intended for use in life support appliances,
+ *     devices, or systems. Use in such applications is expressly prohibited.
+ *
+ *     (c) Copyright 2007-2008 Xilinx Inc.
+ *     All rights reserved.
+ *
+ *     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.,
+ *     675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *****************************************************************************/
+
+#ifndef XILINX_FIFO_ICAP_H_	/* prevent circular inclusions */
+#define XILINX_FIFO_ICAP_H_	/* by using protection macros */
+
+#include <linux/types.h>
+#include <linux/cdev.h>
+#include <linux/version.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include "xilinx_hwicap.h"
+
+/* Reads integers from the device into the storage buffer. */
+int fifo_icap_get_configuration(
+		struct hwicap_drvdata *drvdata,
+		u32 *FrameBuffer,
+		u32 NumWords);
+
+/* Writes integers to the device from the storage buffer. */
+int fifo_icap_set_configuration(
+		struct hwicap_drvdata *drvdata,
+		u32 *FrameBuffer,
+		u32 NumWords);
+
+void fifo_icap_reset(struct hwicap_drvdata *drvdata);
+void fifo_icap_flush_fifo(struct hwicap_drvdata *drvdata);
+
+#endif

drivers/char/xilinx_hwicap/xilinx_hwicap.h

+/*****************************************************************************
+ *
+ *     Author: Xilinx, Inc.
+ *
+ *     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.
+ *
+ *     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
+ *     AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
+ *     SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
+ *     OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
+ *     APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
+ *     THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
+ *     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
+ *     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
+ *     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
+ *     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
+ *     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
+ *     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *     FOR A PARTICULAR PURPOSE.
+ *
+ *     Xilinx products are not intended for use in life support appliances,
+ *     devices, or systems. Use in such applications is expressly prohibited.
+ *
+ *     (c) Copyright 2003-2007 Xilinx Inc.
+ *     All rights reserved.
+ *
+ *     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.,
+ *     675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *****************************************************************************/
+
+#ifndef XILINX_HWICAP_H_	/* prevent circular inclusions */
+#define XILINX_HWICAP_H_	/* by using protection macros */
+
+#include <linux/types.h>
+#include <linux/cdev.h>
+#include <linux/version.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+struct hwicap_drvdata {
+	u32 write_buffer_in_use;  /* Always in [0,3] */
+	u8 write_buffer[4];
+	u32 read_buffer_in_use;	  /* Always in [0,3] */
+	u8 read_buffer[4];
+	u32 mem_start;		  /* phys. address of the control registers */
+	u32 mem_end;		  /* phys. address of the control registers */
+	u32 mem_size;
+	void __iomem *base_address;/* virt. address of the control registers */
+
+	struct device *dev;
+	struct cdev cdev;	/* Char device structure */
+	dev_t devt;
+
+	const struct hwicap_driver_config *config;
+	const struct config_registers *config_regs;
+	void *private_data;
+	bool is_open;
+	struct semaphore sem;
+};
+
+struct hwicap_driver_config {
+	int (*get_configuration)(struct hwicap_drvdata *drvdata, u32 *data,
+			u32 size);
+	int (*set_configuration)(struct hwicap_drvdata *drvdata, u32 *data,
+			u32 size);
+	void (*reset)(struct hwicap_drvdata *drvdata);
+};
+
+/* Number of times to poll the done regsiter */
+#define XHI_MAX_RETRIES     10
+
+/************ Constant Definitions *************/
+
+#define XHI_PAD_FRAMES              0x1
+
+/* Mask for calculating configuration packet headers */
+#define XHI_WORD_COUNT_MASK_TYPE_1  0x7FFUL
+#define XHI_WORD_COUNT_MASK_TYPE_2  0x1FFFFFUL
+#define XHI_TYPE_MASK               0x7
+#define XHI_REGISTER_MASK           0xF
+#define XHI_OP_MASK                 0x3
+
+#define XHI_TYPE_SHIFT              29
+#define XHI_REGISTER_SHIFT          13
+#define XHI_OP_SHIFT                27
+
+#define XHI_TYPE_1                  1
+#define XHI_TYPE_2                  2
+#define XHI_OP_WRITE                2
+#define XHI_OP_READ                 1
+
+/* Address Block Types */
+#define XHI_FAR_CLB_BLOCK           0
+#define XHI_FAR_BRAM_BLOCK          1
+#define XHI_FAR_BRAM_INT_BLOCK      2
+
+struct config_registers {
+	u32 CRC;
+	u32 FAR;
+	u32 FDRI;
+	u32 FDRO;
+	u32 CMD;
+	u32 CTL;
+	u32 MASK;
+	u32 STAT;
+	u32 LOUT;
+	u32 COR;
+	u32 MFWR;
+	u32 FLR;
+	u32 KEY;
+	u32 CBC;
+	u32 IDCODE;
+	u32 AXSS;
+	u32 C0R_1;
+	u32 CSOB;
+	u32 WBSTAR;
+	u32 TIMER;
+	u32 BOOTSTS;
+	u32 CTL_1;
+};
+
+/* Configuration Commands */
+#define XHI_CMD_NULL                0
+#define XHI_CMD_WCFG                1
+#define XHI_CMD_MFW                 2
+#define XHI_CMD_DGHIGH              3
+#define XHI_CMD_RCFG                4
+#define XHI_CMD_START               5
+#define XHI_CMD_RCAP                6
+#define XHI_CMD_RCRC                7
+#define XHI_CMD_AGHIGH              8
+#define XHI_CMD_SWITCH              9
+#define XHI_CMD_GRESTORE            10
+#define XHI_CMD_SHUTDOWN            11
+#define XHI_CMD_GCAPTURE            12
+#define XHI_CMD_DESYNCH             13
+#define XHI_CMD_IPROG               15 /* Only in Virtex5 */
+#define XHI_CMD_CRCC                16 /* Only in Virtex5 */
+#define XHI_CMD_LTIMER              17 /* Only in Virtex5 */
+
+/* Packet constants */
+#define XHI_SYNC_PACKET             0xAA995566UL
+#define XHI_DUMMY_PACKET            0xFFFFFFFFUL
+#define XHI_NOOP_PACKET             (XHI_TYPE_1 << XHI_TYPE_SHIFT)
+#define XHI_TYPE_2_READ ((XHI_TYPE_2 << XHI_TYPE_SHIFT) | \
+			(XHI_OP_READ << XHI_OP_SHIFT))
+
+#define XHI_TYPE_2_WRITE ((XHI_TYPE_2 << XHI_TYPE_SHIFT) | \
+			(XHI_OP_WRITE << XHI_OP_SHIFT))
+
+#define XHI_TYPE2_CNT_MASK          0x07FFFFFF
+
+#define XHI_TYPE_1_PACKET_MAX_WORDS 2047UL
+#define XHI_TYPE_1_HEADER_BYTES     4
+#define XHI_TYPE_2_HEADER_BYTES     8
+
+/* Constant to use for CRC check when CRC has been disabled */
+#define XHI_DISABLED_AUTO_CRC       0x0000DEFCUL
+
+/**
+ * hwicap_type_1_read: Generates a Type 1 read packet header.
+ * @parameter: Register is the address of the register to be read back.
+ *
+ * Generates a Type 1 read packet header, which is used to indirectly
+ * read registers in the configuration logic.  This packet must then
+ * be sent through the icap device, and a return packet received with
+ * the information.
+ **/
+static inline u32 hwicap_type_1_read(u32 Register)
+{
+	return (XHI_TYPE_1 << XHI_TYPE_SHIFT) |
+		(Register << XHI_REGISTER_SHIFT) |
+		(XHI_OP_READ << XHI_OP_SHIFT);
+}
+
+/**
+ * hwicap_type_1_write: Generates a Type 1 write packet header
+ * @parameter: Register is the address of the register to be read back.
+ **/
+static inline u32 hwicap_type_1_write(u32 Register)
+{
+	return (XHI_TYPE_1 << XHI_TYPE_SHIFT) |
+		(Register << XHI_REGISTER_SHIFT) |
+		(XHI_OP_WRITE << XHI_OP_SHIFT);
+}
+
+#endif

drivers/serial/uartlite.c

@@ -17,10 +17,21 @@
 #include <linux/tty.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/init.h>
 #include <asm/io.h>
 #if defined(CONFIG_OF)
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
+
+/* Match table for of_platform binding */
+static struct of_device_id ulite_of_match[] __devinitdata = {
+	{ .compatible = "xlnx,opb-uartlite-1.00.b", },
+	{ .compatible = "xlnx,xps-uartlite-1.00.a", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, ulite_of_match);
+
 #endif
 
 #define ULITE_NAME		"ttyUL"
@@ -275,6 +286,9 @@ static void ulite_release_port(struct uart_port *port)
 
 static int ulite_request_port(struct uart_port *port)
 {
+	pr_debug("ulite console: port=%p; port->mapbase=%x\n",
+		 port, port->mapbase);
+
 	if (!request_mem_region(port->mapbase, ULITE_REGION, "uartlite")) {
 		dev_err(port->dev, "Memory region busy\n");
 		return -EBUSY;
@@ -375,32 +389,6 @@ static void ulite_console_write(struct console *co, const char *s,
 		spin_unlock_irqrestore(&port->lock, flags);
 }
 
-#if defined(CONFIG_OF)
-static inline void __init ulite_console_of_find_device(int id)
-{
-	struct device_node *np;
-	struct resource res;
-	const unsigned int *of_id;
-	int rc;
-
-	for_each_compatible_node(np, NULL, "xilinx,uartlite") {
-		of_id = of_get_property(np, "port-number", NULL);
-		if ((!of_id) || (*of_id != id))
-			continue;
-
-		rc = of_address_to_resource(np, 0, &res);
-		if (rc)
-			continue;
-
-		ulite_ports[id].mapbase = res.start;
-		of_node_put(np);
-		return;
-	}
-}
-#else /* CONFIG_OF */
-static inline void __init ulite_console_of_find_device(int id) { /* do nothing */ }
-#endif /* CONFIG_OF */
-
 static int __init ulite_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
@@ -414,11 +402,7 @@ static int __init ulite_console_setup(struct console *co, char *options)
 
 	port = &ulite_ports[co->index];
 
-	/* Check if it is an OF device */
-	if (!port->mapbase)
-		ulite_console_of_find_device(co->index);
-
-	/* Do we have a device now? */
+	/* Has the device been initialized yet? */
 	if (!port->mapbase) {
 		pr_debug("console on ttyUL%i not present\n", co->index);
 		return -ENODEV;
@@ -617,13 +601,6 @@ static int __devexit ulite_of_remove(struct of_device *op)
 	return ulite_release(&op->dev);
 }
 
-/* Match table for of_platform binding */
-static struct of_device_id __devinit ulite_of_match[] = {
-	{ .type = "serial", .compatible = "xilinx,uartlite", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, ulite_of_match);
-
 static struct of_platform_driver ulite_of_driver = {
 	.owner = THIS_MODULE,
 	.name = "uartlite",

drivers/video/xilinxfb.c

@@ -459,8 +459,8 @@ static int __devexit xilinxfb_of_remove(struct of_device *op)
 }
 
 /* Match table for of_platform binding */
-static struct of_device_id __devinit xilinxfb_of_match[] = {
-	{ .compatible = "xilinx,ml300-fb", },
+static struct of_device_id xilinxfb_of_match[] __devinitdata = {
+	{ .compatible = "xlnx,plb-tft-cntlr-ref-1.00.a", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, xilinxfb_of_match);