Merge tag 'omap-for-v3.16/l3-noc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Merge "ARM: omap l3-noc bus driver changes for v3.16 merge window, resend" from
Tony Lindgren:

Improvments to omap l3-noc bus driver for v3.16 merge window
to add support for am347x and dra7.

* tag 'omap-for-v3.16/l3-noc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (25 commits)
bus: omap_l3_noc: Add AM4372 interconnect error data
bus: omap_l3_noc: Add DRA7 interconnect error data
bus: omap_l3_noc: introduce concept of submodule
bus: omap_l3_noc: Add information about the context of operation
bus: omap_l3_noc: add information about the type of operation
bus: omap_l3_noc: ignore masked out unclearable targets
bus: omap_l3_noc: improve readability by using helper for slave event parsing
bus: omap_l3_noc: make error reporting and handling common
bus: omap_l3_noc: fix masterid detection
bus: omap_l3_noc: convert flagmux information into a structure
bus: omap_l3_noc: use of_match_data to pick up SoC information
bus: omap_l3_noc: Add support for discountinous flag mux input numbers
bus: omap_l3_noc: convert target information into a structure
bus: omap_l3_noc: move L3 master data structure out
bus: omap_l3_noc: un-obfuscate l3_targ address computation
bus: omap_l3_noc: switch over to relaxed variants of readl/writel
bus: omap_l3_noc: populate l3->dev and use it
bus: omap_l3_noc: remove iclk from omap_l3 struct
bus: omap_l3_noc: rename functions and data to omap_l3
bus: omap_l3_noc: Fix copyright information
...

Signed-off-by: Olof Johansson <[e-mail]>

Documentation/devicetree/bindings/arm/omap/l3-noc.txt

···
 Required properties:
 - compatible : Should be "ti,omap3-l3-smx" for OMAP3 family
                Should be "ti,omap4-l3-noc" for OMAP4 family
+	       Should be "ti,dra7-l3-noc" for DRA7 family
+               Should be "ti,am4372-l3-noc" for AM43 family
 - reg:	Contains L3 register address range for each noc domain.
 - ti,hwmods: "l3_main_1", ... One hwmod for each noc domain.
 

drivers/bus/omap_l3_noc.c

···
 /*
- * OMAP4XXX L3 Interconnect error handling driver
+ * OMAP L3 Interconnect error handling driver
  *
- * Copyright (C) 2011 Texas Corporation
+ * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/
  *	Santosh Shilimkar <[e-mail]>
  *	Sricharan <[e-mail]>
  *
  * 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.
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  *
- * 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
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
  */
-#include <linux/module.h>
 #include <linux/init.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 
 #include "omap_l3_noc.h"
 
-/*
- * Interrupt Handler for L3 error detection.
- *	1) Identify the L3 clockdomain partition to which the error belongs to.
- *	2) Identify the slave where the error information is logged
- *	3) Print the logged information.
- *	4) Add dump stack to provide kernel trace.
+/**
+ * l3_handle_target() - Handle Target specific parse and reporting
+ * @l3:		pointer to l3 struct
+ * @base:	base address of clkdm
+ * @flag_mux:	flagmux corresponding to the event
+ * @err_src:	error source index of the slave (target)
  *
- * Two Types of errors :
+ * This does the second part of the error interrupt handling:
+ *	3) Parse in the slave information
+ *	4) Print the logged information.
+ *	5) Add dump stack to provide kernel trace.
+ *	6) Clear the source if known.
+ *
+ * This handles two types of errors:
  *	1) Custom errors in L3 :
  *		Target like DMM/FW/EMIF generates SRESP=ERR error
  *	2) Standard L3 error:
···
  *	can be trapped as well. But the trapping is implemented as part
  *	secure software and hence need not be implemented here.
  */
+static int l3_handle_target(struct omap_l3 *l3, void __iomem *base,
+			    struct l3_flagmux_data *flag_mux, int err_src)
+{
+	int k;
+	u32 std_err_main, clear, masterid;
+	u8 op_code, m_req_info;
+	void __iomem *l3_targ_base;
+	void __iomem *l3_targ_stderr, *l3_targ_slvofslsb, *l3_targ_mstaddr;
+	void __iomem *l3_targ_hdr, *l3_targ_info;
+	struct l3_target_data *l3_targ_inst;
+	struct l3_masters_data *master;
+	char *target_name, *master_name = "UN IDENTIFIED";
+	char *err_description;
+	char err_string[30] = { 0 };
+	char info_string[60] = { 0 };
+
+	/* We DONOT expect err_src to go out of bounds */
+	BUG_ON(err_src > MAX_CLKDM_TARGETS);
+
+	if (err_src < flag_mux->num_targ_data) {
+		l3_targ_inst = &flag_mux->l3_targ[err_src];
+		target_name = l3_targ_inst->name;
+		l3_targ_base = base + l3_targ_inst->offset;
+	} else {
+		target_name = L3_TARGET_NOT_SUPPORTED;
+	}
+
+	if (target_name == L3_TARGET_NOT_SUPPORTED)
+		return -ENODEV;
+
+	/* Read the stderrlog_main_source from clk domain */
+	l3_targ_stderr = l3_targ_base + L3_TARG_STDERRLOG_MAIN;
+	l3_targ_slvofslsb = l3_targ_base + L3_TARG_STDERRLOG_SLVOFSLSB;
+
+	std_err_main = readl_relaxed(l3_targ_stderr);
+
+	switch (std_err_main & CUSTOM_ERROR) {
+	case STANDARD_ERROR:
+		err_description = "Standard";
+		snprintf(err_string, sizeof(err_string),
+			 ": At Address: 0x%08X ",
+			 readl_relaxed(l3_targ_slvofslsb));
+
+		l3_targ_mstaddr = l3_targ_base + L3_TARG_STDERRLOG_MSTADDR;
+		l3_targ_hdr = l3_targ_base + L3_TARG_STDERRLOG_HDR;
+		l3_targ_info = l3_targ_base + L3_TARG_STDERRLOG_INFO;
+		break;
+
+	case CUSTOM_ERROR:
+		err_description = "Custom";
+
+		l3_targ_mstaddr = l3_targ_base +
+				  L3_TARG_STDERRLOG_CINFO_MSTADDR;
+		l3_targ_hdr = l3_targ_base + L3_TARG_STDERRLOG_CINFO_OPCODE;
+		l3_targ_info = l3_targ_base + L3_TARG_STDERRLOG_CINFO_INFO;
+		break;
+
+	default:
+		/* Nothing to be handled here as of now */
+		return 0;
+	}
+
+	/* STDERRLOG_MSTADDR Stores the NTTP master address. */
+	masterid = (readl_relaxed(l3_targ_mstaddr) &
+		    l3->mst_addr_mask) >> __ffs(l3->mst_addr_mask);
+
+	for (k = 0, master = l3->l3_masters; k < l3->num_masters;
+	     k++, master++) {
+		if (masterid == master->id) {
+			master_name = master->name;
+			break;
+		}
+	}
+
+	op_code = readl_relaxed(l3_targ_hdr) & 0x7;
+
+	m_req_info = readl_relaxed(l3_targ_info) & 0xF;
+	snprintf(info_string, sizeof(info_string),
+		 ": %s in %s mode during %s access",
+		 (m_req_info & BIT(0)) ? "Opcode Fetch" : "Data Access",
+		 (m_req_info & BIT(1)) ? "Supervisor" : "User",
+		 (m_req_info & BIT(3)) ? "Debug" : "Functional");
+
+	WARN(true,
+	     "%s:L3 %s Error: MASTER %s TARGET %s (%s)%s%s\n",
+	     dev_name(l3->dev),
+	     err_description,
+	     master_name, target_name,
+	     l3_transaction_type[op_code],
+	     err_string, info_string);
+
+	/* clear the std error log*/
+	clear = std_err_main | CLEAR_STDERR_LOG;
+	writel_relaxed(clear, l3_targ_stderr);
+
+	return 0;
+}
+
+/**
+ * l3_interrupt_handler() - interrupt handler for l3 events
+ * @irq:	irq number
+ * @_l3:	pointer to l3 structure
+ *
+ * Interrupt Handler for L3 error detection.
+ *	1) Identify the L3 clockdomain partition to which the error belongs to.
+ *	2) Identify the slave where the error information is logged
+ *	... handle the slave event..
+ *	7) if the slave is unknown, mask out the slave.
+ */
 static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
 {
-
-	struct omap4_l3 *l3 = _l3;
-	int inttype, i, k;
+	struct omap_l3 *l3 = _l3;
+	int inttype, i, ret;
 	int err_src = 0;
-	u32 std_err_main, err_reg, clear, masterid;
-	void __iomem *base, *l3_targ_base;
-	char *target_name, *master_name = "UN IDENTIFIED";
+	u32 err_reg, mask_val;
+	void __iomem *base, *mask_reg;
+	struct l3_flagmux_data *flag_mux;
 
 	/* Get the Type of interrupt */
 	inttype = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
 
-	for (i = 0; i < L3_MODULES; i++) {
+	for (i = 0; i < l3->num_modules; i++) {
 		/*
 		 * Read the regerr register of the clock domain
 		 * to determine the source
 		 */
 		base = l3->l3_base[i];
-		err_reg = __raw_readl(base + l3_flagmux[i] +
-					+ L3_FLAGMUX_REGERR0 + (inttype << 3));
+		flag_mux = l3->l3_flagmux[i];
+		err_reg = readl_relaxed(base + flag_mux->offset +
+					L3_FLAGMUX_REGERR0 + (inttype << 3));
+
+		err_reg &= ~(inttype ? flag_mux->mask_app_bits :
+				flag_mux->mask_dbg_bits);
 
 		/* Get the corresponding error and analyse */
 		if (err_reg) {
 			/* Identify the source from control status register */
 			err_src = __ffs(err_reg);
 
-			/* Read the stderrlog_main_source from clk domain */
-			l3_targ_base = base + *(l3_targ[i] + err_src);
-			std_err_main =  __raw_readl(l3_targ_base +
-					L3_TARG_STDERRLOG_MAIN);
-			masterid = __raw_readl(l3_targ_base +
-					L3_TARG_STDERRLOG_MSTADDR);
+			ret = l3_handle_target(l3, base, flag_mux, err_src);
 
-			switch (std_err_main & CUSTOM_ERROR) {
-			case STANDARD_ERROR:
-				target_name =
-					l3_targ_inst_name[i][err_src];
-				WARN(true, "L3 standard error: TARGET:%s at address 0x%x\n",
-					target_name,
-					__raw_readl(l3_targ_base +
-						L3_TARG_STDERRLOG_SLVOFSLSB));
-				/* clear the std error log*/
-				clear = std_err_main | CLEAR_STDERR_LOG;
-				writel(clear, l3_targ_base +
-					L3_TARG_STDERRLOG_MAIN);
-				break;
+			/*
+			 * Certain plaforms may have "undocumented" status
+			 * pending on boot. So dont generate a severe warning
+			 * here. Just mask it off to prevent the error from
+			 * reoccuring and locking up the system.
+			 */
+			if (ret) {
+				dev_err(l3->dev,
+					"L3 %s error: target %d mod:%d %s\n",
+					inttype ? "debug" : "application",
+					err_src, i, "(unclearable)");
 
-			case CUSTOM_ERROR:
-				target_name =
-					l3_targ_inst_name[i][err_src];
-				for (k = 0; k < NUM_OF_L3_MASTERS; k++) {
-					if (masterid == l3_masters[k].id)
-						master_name =
-							l3_masters[k].name;
-				}
-				WARN(true, "L3 custom error: MASTER:%s TARGET:%s\n",
-					master_name, target_name);
-				/* clear the std error log*/
-				clear = std_err_main | CLEAR_STDERR_LOG;
-				writel(clear, l3_targ_base +
-					L3_TARG_STDERRLOG_MAIN);
-				break;
+				mask_reg = base + flag_mux->offset +
+					   L3_FLAGMUX_MASK0 + (inttype << 3);
+				mask_val = readl_relaxed(mask_reg);
+				mask_val &= ~(1 << err_src);
+				writel_relaxed(mask_val, mask_reg);
 
-			default:
-				/* Nothing to be handled here as of now */
-				break;
+				/* Mark these bits as to be ignored */
+				if (inttype)
+					flag_mux->mask_app_bits |= 1 << err_src;
+				else
+					flag_mux->mask_dbg_bits |= 1 << err_src;
 			}
-		/* Error found so break the for loop */
-		break;
+
+			/* Error found so break the for loop */
+			break;
 		}
 	}
 	return IRQ_HANDLED;
 }
 
-static int omap4_l3_probe(struct platform_device *pdev)
-{
-	static struct omap4_l3 *l3;
-	struct resource	*res;
-	int ret;
+static const struct of_device_id l3_noc_match[] = {
+	{.compatible = "ti,omap4-l3-noc", .data = &omap_l3_data},
+	{.compatible = "ti,dra7-l3-noc", .data = &dra_l3_data},
+	{.compatible = "ti,am4372-l3-noc", .data = &am4372_l3_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, l3_noc_match);
 
-	l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
+static int omap_l3_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *of_id;
+	static struct omap_l3 *l3;
+	int ret, i, res_idx;
+
+	of_id = of_match_device(l3_noc_match, &pdev->dev);
+	if (!of_id) {
+		dev_err(&pdev->dev, "OF data missing\n");
+		return -EINVAL;
+	}
+
+	l3 = devm_kzalloc(&pdev->dev, sizeof(*l3), GFP_KERNEL);
 	if (!l3)
 		return -ENOMEM;
 
+	memcpy(l3, of_id->data, sizeof(*l3));
+	l3->dev = &pdev->dev;
 	platform_set_drvdata(pdev, l3);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "couldn't find resource 0\n");
-		ret = -ENODEV;
-		goto err0;
-	}
 
-	l3->l3_base[0] = ioremap(res->start, resource_size(res));
-	if (!l3->l3_base[0]) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		ret = -ENOMEM;
-		goto err0;
-	}
+	/* Get mem resources */
+	for (i = 0, res_idx = 0; i < l3->num_modules; i++) {
+		struct resource	*res;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res) {
-		dev_err(&pdev->dev, "couldn't find resource 1\n");
-		ret = -ENODEV;
-		goto err1;
-	}
-
-	l3->l3_base[1] = ioremap(res->start, resource_size(res));
-	if (!l3->l3_base[1]) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	if (!res) {
-		dev_err(&pdev->dev, "couldn't find resource 2\n");
-		ret = -ENODEV;
-		goto err2;
-	}
-
-	l3->l3_base[2] = ioremap(res->start, resource_size(res));
-	if (!l3->l3_base[2]) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		ret = -ENOMEM;
-		goto err2;
+		if (l3->l3_base[i] == L3_BASE_IS_SUBMODULE) {
+			/* First entry cannot be submodule */
+			BUG_ON(i == 0);
+			l3->l3_base[i] = l3->l3_base[i - 1];
+			continue;
+		}
+		res = platform_get_resource(pdev, IORESOURCE_MEM, res_idx);
+		l3->l3_base[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(l3->l3_base[i])) {
+			dev_err(l3->dev, "ioremap %d failed\n", i);
+			return PTR_ERR(l3->l3_base[i]);
+		}
+		res_idx++;
 	}
 
 	/*
 	 * Setup interrupt Handlers
 	 */
 	l3->debug_irq = platform_get_irq(pdev, 0);
-	ret = request_irq(l3->debug_irq,
-			l3_interrupt_handler,
-			IRQF_DISABLED, "l3-dbg-irq", l3);
+	ret = devm_request_irq(l3->dev, l3->debug_irq, l3_interrupt_handler,
+			       IRQF_DISABLED, "l3-dbg-irq", l3);
 	if (ret) {
-		pr_crit("L3: request_irq failed to register for 0x%x\n",
-						l3->debug_irq);
-		goto err3;
+		dev_err(l3->dev, "request_irq failed for %d\n",
+			l3->debug_irq);
+		return ret;
 	}
 
 	l3->app_irq = platform_get_irq(pdev, 1);
-	ret = request_irq(l3->app_irq,
-			l3_interrupt_handler,
-			IRQF_DISABLED, "l3-app-irq", l3);
-	if (ret) {
-		pr_crit("L3: request_irq failed to register for 0x%x\n",
-						l3->app_irq);
-		goto err4;
-	}
+	ret = devm_request_irq(l3->dev, l3->app_irq, l3_interrupt_handler,
+			       IRQF_DISABLED, "l3-app-irq", l3);
+	if (ret)
+		dev_err(l3->dev, "request_irq failed for %d\n", l3->app_irq);
 
-	return 0;
-
-err4:
-	free_irq(l3->debug_irq, l3);
-err3:
-	iounmap(l3->l3_base[2]);
-err2:
-	iounmap(l3->l3_base[1]);
-err1:
-	iounmap(l3->l3_base[0]);
-err0:
-	kfree(l3);
 	return ret;
 }
 
-static int omap4_l3_remove(struct platform_device *pdev)
-{
-	struct omap4_l3 *l3 = platform_get_drvdata(pdev);
-
-	free_irq(l3->app_irq, l3);
-	free_irq(l3->debug_irq, l3);
-	iounmap(l3->l3_base[0]);
-	iounmap(l3->l3_base[1]);
-	iounmap(l3->l3_base[2]);
-	kfree(l3);
-
-	return 0;
-}
-
-#if defined(CONFIG_OF)
-static const struct of_device_id l3_noc_match[] = {
-	{.compatible = "ti,omap4-l3-noc", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, l3_noc_match);
-#else
-#define l3_noc_match NULL
-#endif
-
-static struct platform_driver omap4_l3_driver = {
-	.probe		= omap4_l3_probe,
-	.remove		= omap4_l3_remove,
+static struct platform_driver omap_l3_driver = {
+	.probe		= omap_l3_probe,
 	.driver		= {
 		.name		= "omap_l3_noc",
 		.owner		= THIS_MODULE,
-		.of_match_table = l3_noc_match,
+		.of_match_table = of_match_ptr(l3_noc_match),
 	},
 };
 
-static int __init omap4_l3_init(void)
+static int __init omap_l3_init(void)
 {
-	return platform_driver_register(&omap4_l3_driver);
+	return platform_driver_register(&omap_l3_driver);
 }
-postcore_initcall_sync(omap4_l3_init);
+postcore_initcall_sync(omap_l3_init);
 
-static void __exit omap4_l3_exit(void)
+static void __exit omap_l3_exit(void)
 {
-	platform_driver_unregister(&omap4_l3_driver);
+	platform_driver_unregister(&omap_l3_driver);
 }
-module_exit(omap4_l3_exit);
+module_exit(omap_l3_exit);

drivers/bus/omap_l3_noc.h

···
 /*
- * OMAP4XXX L3 Interconnect  error handling driver header
+ * OMAP L3 Interconnect  error handling driver header
  *
- * Copyright (C) 2011 Texas Corporation
+ * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/
  *	Santosh Shilimkar <[e-mail]>
  *	sricharan <[e-mail]>
  *
  * 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.
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  *
- * 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
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
  */
-#ifndef __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
-#define __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
+#ifndef __OMAP_L3_NOC_H
+#define __OMAP_L3_NOC_H
 
-#define L3_MODULES			3
+#define MAX_L3_MODULES			3
+#define MAX_CLKDM_TARGETS		31
+
 #define CLEAR_STDERR_LOG		(1 << 31)
 #define CUSTOM_ERROR			0x2
 #define STANDARD_ERROR			0x0
···
 
 /* L3 TARG register offsets */
 #define L3_TARG_STDERRLOG_MAIN		0x48
+#define L3_TARG_STDERRLOG_HDR		0x4c
+#define L3_TARG_STDERRLOG_MSTADDR	0x50
+#define L3_TARG_STDERRLOG_INFO		0x58
 #define L3_TARG_STDERRLOG_SLVOFSLSB	0x5c
-#define L3_TARG_STDERRLOG_MSTADDR	0x68
+#define L3_TARG_STDERRLOG_CINFO_INFO	0x64
+#define L3_TARG_STDERRLOG_CINFO_MSTADDR	0x68
+#define L3_TARG_STDERRLOG_CINFO_OPCODE	0x6c
 #define L3_FLAGMUX_REGERR0		0xc
+#define L3_FLAGMUX_MASK0		0x8
 
-#define NUM_OF_L3_MASTERS	(sizeof(l3_masters)/sizeof(l3_masters[0]))
+#define L3_TARGET_NOT_SUPPORTED		NULL
 
-static u32 l3_flagmux[L3_MODULES] = {
-	0x500,
-	0x1000,
-	0X0200
+#define L3_BASE_IS_SUBMODULE		((void __iomem *)(1 << 0))
+
+static const char * const l3_transaction_type[] = {
+	/* 0 0 0 */ "Idle",
+	/* 0 0 1 */ "Write",
+	/* 0 1 0 */ "Read",
+	/* 0 1 1 */ "ReadEx",
+	/* 1 0 0 */ "Read Link",
+	/* 1 0 1 */ "Write Non-Posted",
+	/* 1 1 0 */ "Write Conditional",
+	/* 1 1 1 */ "Write Broadcast",
 };
 
-/* L3 Target standard Error register offsets */
-static u32 l3_targ_inst_clk1[] = {
-	0x100, /* DMM1 */
-	0x200, /* DMM2 */
-	0x300, /* ABE */
-	0x400, /* L4CFG */
-	0x600,  /* CLK2 PWR DISC */
-	0x0,	/* Host CLK1 */
-	0x900	/* L4 Wakeup */
-};
-
-static u32 l3_targ_inst_clk2[] = {
-	0x500, /* CORTEX M3 */
-	0x300, /* DSS */
-	0x100, /* GPMC */
-	0x400, /* ISS */
-	0x700, /* IVAHD */
-	0xD00, /* missing in TRM  corresponds to AES1*/
-	0x900, /* L4 PER0*/
-	0x200, /* OCMRAM */
-	0x100, /* missing in TRM corresponds to GPMC sERROR*/
-	0x600, /* SGX */
-	0x800, /* SL2 */
-	0x1600, /* C2C */
-	0x1100,	/* missing in TRM corresponds PWR DISC CLK1*/
-	0xF00, /* missing in TRM corrsponds to SHA1*/
-	0xE00, /* missing in TRM corresponds to AES2*/
-	0xC00, /* L4 PER3 */
-	0xA00, /* L4 PER1*/
-	0xB00, /* L4 PER2*/
-	0x0, /* HOST CLK2 */
-	0x1800, /* CAL */
-	0x1700 /* LLI */
-};
-
-static u32 l3_targ_inst_clk3[] = {
-	0x0100	/* EMUSS */,
-	0x0300, /* DEBUGSS_CT_TBR */
-	0x0 /* HOST CLK3 */
-};
-
-static struct l3_masters_data {
+/**
+ * struct l3_masters_data - L3 Master information
+ * @id:		ID of the L3 Master
+ * @name:	master name
+ */
+struct l3_masters_data {
 	u32 id;
-	char name[10];
-} l3_masters[] = {
+	char *name;
+};
+
+/**
+ * struct l3_target_data - L3 Target information
+ * @offset:	Offset from base for L3 Target
+ * @name:	Target name
+ *
+ * Target information is organized indexed by bit field definitions.
+ */
+struct l3_target_data {
+	u32 offset;
+	char *name;
+};
+
+/**
+ * struct l3_flagmux_data - Flag Mux information
+ * @offset:	offset from base for flagmux register
+ * @l3_targ:	array indexed by flagmux index (bit offset) pointing to the
+ *		target data. unsupported ones are marked with
+ *		L3_TARGET_NOT_SUPPORTED
+ * @num_targ_data: number of entries in target data
+ * @mask_app_bits: ignore these from raw application irq status
+ * @mask_dbg_bits: ignore these from raw debug irq status
+ */
+struct l3_flagmux_data {
+	u32 offset;
+	struct l3_target_data *l3_targ;
+	u8 num_targ_data;
+	u32 mask_app_bits;
+	u32 mask_dbg_bits;
+};
+
+
+/**
+ * struct omap_l3 - Description of data relevant for L3 bus.
+ * @dev:	device representing the bus (populated runtime)
+ * @l3_base:	base addresses of modules (populated runtime if 0)
+ *		if set to L3_BASE_IS_SUBMODULE, then uses previous
+ *		module index as the base address
+ * @l3_flag_mux: array containing flag mux data per module
+ *		 offset from corresponding module base indexed per
+ *		 module.
+ * @num_modules: number of clock domains / modules.
+ * @l3_masters:	array pointing to master data containing name and register
+ *		offset for the master.
+ * @num_master: number of masters
+ * @mst_addr_mask: Mask representing MSTADDR information of NTTP packet
+ * @debug_irq:	irq number of the debug interrupt (populated runtime)
+ * @app_irq:	irq number of the application interrupt (populated runtime)
+ */
+struct omap_l3 {
+	struct device *dev;
+
+	void __iomem *l3_base[MAX_L3_MODULES];
+	struct l3_flagmux_data **l3_flagmux;
+	int num_modules;
+
+	struct l3_masters_data *l3_masters;
+	int num_masters;
+	u32 mst_addr_mask;
+
+	int debug_irq;
+	int app_irq;
+};
+
+static struct l3_target_data omap_l3_target_data_clk1[] = {
+	{0x100,	"DMM1",},
+	{0x200,	"DMM2",},
+	{0x300,	"ABE",},
+	{0x400,	"L4CFG",},
+	{0x600,	"CLK2PWRDISC",},
+	{0x0,	"HOSTCLK1",},
+	{0x900,	"L4WAKEUP",},
+};
+
+static struct l3_flagmux_data omap_l3_flagmux_clk1 = {
+	.offset = 0x500,
+	.l3_targ = omap_l3_target_data_clk1,
+	.num_targ_data = ARRAY_SIZE(omap_l3_target_data_clk1),
+};
+
+
+static struct l3_target_data omap_l3_target_data_clk2[] = {
+	{0x500,	"CORTEXM3",},
+	{0x300,	"DSS",},
+	{0x100,	"GPMC",},
+	{0x400,	"ISS",},
+	{0x700,	"IVAHD",},
+	{0xD00,	"AES1",},
+	{0x900,	"L4PER0",},
+	{0x200,	"OCMRAM",},
+	{0x100,	"GPMCsERROR",},
+	{0x600,	"SGX",},
+	{0x800,	"SL2",},
+	{0x1600, "C2C",},
+	{0x1100, "PWRDISCCLK1",},
+	{0xF00,	"SHA1",},
+	{0xE00,	"AES2",},
+	{0xC00,	"L4PER3",},
+	{0xA00,	"L4PER1",},
+	{0xB00,	"L4PER2",},
+	{0x0,	"HOSTCLK2",},
+	{0x1800, "CAL",},
+	{0x1700, "LLI",},
+};
+
+static struct l3_flagmux_data omap_l3_flagmux_clk2 = {
+	.offset = 0x1000,
+	.l3_targ = omap_l3_target_data_clk2,
+	.num_targ_data = ARRAY_SIZE(omap_l3_target_data_clk2),
+};
+
+
+static struct l3_target_data omap_l3_target_data_clk3[] = {
+	{0x0100, "EMUSS",},
+	{0x0300, "DEBUG SOURCE",},
+	{0x0,	"HOST CLK3",},
+};
+
+static struct l3_flagmux_data omap_l3_flagmux_clk3 = {
+	.offset = 0x0200,
+	.l3_targ = omap_l3_target_data_clk3,
+	.num_targ_data = ARRAY_SIZE(omap_l3_target_data_clk3),
+};
+
+static struct l3_masters_data omap_l3_masters[] = {
 	{ 0x0 , "MPU"},
 	{ 0x10, "CS_ADP"},
 	{ 0x14, "xxx"},
···
 	{ 0xC8, "USBHOSTFS"}
 };
 
-static char *l3_targ_inst_name[L3_MODULES][21] = {
-	{
-		"DMM1",
-		"DMM2",
-		"ABE",
-		"L4CFG",
-		"CLK2 PWR DISC",
-		"HOST CLK1",
-		"L4 WAKEUP"
-	},
-	{
-		"CORTEX M3" ,
-		"DSS ",
-		"GPMC ",
-		"ISS ",
-		"IVAHD ",
-		"AES1",
-		"L4 PER0",
-		"OCMRAM ",
-		"GPMC sERROR",
-		"SGX ",
-		"SL2 ",
-		"C2C ",
-		"PWR DISC CLK1",
-		"SHA1",
-		"AES2",
-		"L4 PER3",
-		"L4 PER1",
-		"L4 PER2",
-		"HOST CLK2",
-		"CAL",
-		"LLI"
-	},
-	{
-		"EMUSS",
-		"DEBUG SOURCE",
-		"HOST CLK3"
-	},
+static struct l3_flagmux_data *omap_l3_flagmux[] = {
+	&omap_l3_flagmux_clk1,
+	&omap_l3_flagmux_clk2,
+	&omap_l3_flagmux_clk3,
 };
 
-static u32 *l3_targ[L3_MODULES] = {
-	l3_targ_inst_clk1,
-	l3_targ_inst_clk2,
-	l3_targ_inst_clk3,
+static const struct omap_l3 omap_l3_data = {
+	.l3_flagmux = omap_l3_flagmux,
+	.num_modules = ARRAY_SIZE(omap_l3_flagmux),
+	.l3_masters = omap_l3_masters,
+	.num_masters = ARRAY_SIZE(omap_l3_masters),
+	/* The 6 MSBs of register field used to distinguish initiator */
+	.mst_addr_mask = 0xFC,
 };
 
-struct omap4_l3 {
-	struct device *dev;
-	struct clk *ick;
-
-	/* memory base */
-	void __iomem *l3_base[L3_MODULES];
-
-	int debug_irq;
-	int app_irq;
+/* DRA7 data */
+static struct l3_target_data dra_l3_target_data_clk1[] = {
+	{0x2a00, "AES1",},
+	{0x0200, "DMM_P1",},
+	{0x0600, "DSP2_SDMA",},
+	{0x0b00, "EVE2",},
+	{0x1300, "DMM_P2",},
+	{0x2c00, "AES2",},
+	{0x0300, "DSP1_SDMA",},
+	{0x0a00, "EVE1",},
+	{0x0c00, "EVE3",},
+	{0x0d00, "EVE4",},
+	{0x2900, "DSS",},
+	{0x0100, "GPMC",},
+	{0x3700, "PCIE1",},
+	{0x1600, "IVA_CONFIG",},
+	{0x1800, "IVA_SL2IF",},
+	{0x0500, "L4_CFG",},
+	{0x1d00, "L4_WKUP",},
+	{0x3800, "PCIE2",},
+	{0x3300, "SHA2_1",},
+	{0x1200, "GPU",},
+	{0x1000, "IPU1",},
+	{0x1100, "IPU2",},
+	{0x2000, "TPCC_EDMA",},
+	{0x2e00, "TPTC1_EDMA",},
+	{0x2b00, "TPTC2_EDMA",},
+	{0x0700, "VCP1",},
+	{0x2500, "L4_PER2_P3",},
+	{0x0e00, "L4_PER3_P3",},
+	{0x2200, "MMU1",},
+	{0x1400, "PRUSS1",},
+	{0x1500, "PRUSS2"},
+	{0x0800, "VCP1",},
 };
-#endif
+
+static struct l3_flagmux_data dra_l3_flagmux_clk1 = {
+	.offset = 0x803500,
+	.l3_targ = dra_l3_target_data_clk1,
+	.num_targ_data = ARRAY_SIZE(dra_l3_target_data_clk1),
+};
+
+static struct l3_target_data dra_l3_target_data_clk2[] = {
+	{0x0,	"HOST CLK1",},
+	{0x0,	"HOST CLK2",},
+	{0xdead, L3_TARGET_NOT_SUPPORTED,},
+	{0x3400, "SHA2_2",},
+	{0x0900, "BB2D",},
+	{0xdead, L3_TARGET_NOT_SUPPORTED,},
+	{0x2100, "L4_PER1_P3",},
+	{0x1c00, "L4_PER1_P1",},
+	{0x1f00, "L4_PER1_P2",},
+	{0x2300, "L4_PER2_P1",},
+	{0x2400, "L4_PER2_P2",},
+	{0x2600, "L4_PER3_P1",},
+	{0x2700, "L4_PER3_P2",},
+	{0x2f00, "MCASP1",},
+	{0x3000, "MCASP2",},
+	{0x3100, "MCASP3",},
+	{0x2800, "MMU2",},
+	{0x0f00, "OCMC_RAM1",},
+	{0x1700, "OCMC_RAM2",},
+	{0x1900, "OCMC_RAM3",},
+	{0x1e00, "OCMC_ROM",},
+	{0x3900, "QSPI",},
+};
+
+static struct l3_flagmux_data dra_l3_flagmux_clk2 = {
+	.offset = 0x803600,
+	.l3_targ = dra_l3_target_data_clk2,
+	.num_targ_data = ARRAY_SIZE(dra_l3_target_data_clk2),
+};
+
+static struct l3_target_data dra_l3_target_data_clk3[] = {
+	{0x0100, "L3_INSTR"},
+	{0x0300, "DEBUGSS_CT_TBR"},
+	{0x0,	 "HOST CLK3"},
+};
+
+static struct l3_flagmux_data dra_l3_flagmux_clk3 = {
+	.offset = 0x200,
+	.l3_targ = dra_l3_target_data_clk3,
+	.num_targ_data = ARRAY_SIZE(dra_l3_target_data_clk3),
+};
+
+static struct l3_masters_data dra_l3_masters[] = {
+	{ 0x0, "MPU" },
+	{ 0x4, "CS_DAP" },
+	{ 0x5, "IEEE1500_2_OCP" },
+	{ 0x8, "DSP1_MDMA" },
+	{ 0x9, "DSP1_CFG" },
+	{ 0xA, "DSP1_DMA" },
+	{ 0xB, "DSP2_MDMA" },
+	{ 0xC, "DSP2_CFG" },
+	{ 0xD, "DSP2_DMA" },
+	{ 0xE, "IVA" },
+	{ 0x10, "EVE1_P1" },
+	{ 0x11, "EVE2_P1" },
+	{ 0x12, "EVE3_P1" },
+	{ 0x13, "EVE4_P1" },
+	{ 0x14, "PRUSS1 PRU1" },
+	{ 0x15, "PRUSS1 PRU2" },
+	{ 0x16, "PRUSS2 PRU1" },
+	{ 0x17, "PRUSS2 PRU2" },
+	{ 0x18, "IPU1" },
+	{ 0x19, "IPU2" },
+	{ 0x1A, "SDMA" },
+	{ 0x1B, "CDMA" },
+	{ 0x1C, "TC1_EDMA" },
+	{ 0x1D, "TC2_EDMA" },
+	{ 0x20, "DSS" },
+	{ 0x21, "MMU1" },
+	{ 0x22, "PCIE1" },
+	{ 0x23, "MMU2" },
+	{ 0x24, "VIP1" },
+	{ 0x25, "VIP2" },
+	{ 0x26, "VIP3" },
+	{ 0x27, "VPE" },
+	{ 0x28, "GPU_P1" },
+	{ 0x29, "BB2D" },
+	{ 0x29, "GPU_P2" },
+	{ 0x2B, "GMAC_SW" },
+	{ 0x2C, "USB3" },
+	{ 0x2D, "USB2_SS" },
+	{ 0x2E, "USB2_ULPI_SS1" },
+	{ 0x2F, "USB2_ULPI_SS2" },
+	{ 0x30, "CSI2_1" },
+	{ 0x31, "CSI2_2" },
+	{ 0x33, "SATA" },
+	{ 0x34, "EVE1_P2" },
+	{ 0x35, "EVE2_P2" },
+	{ 0x36, "EVE3_P2" },
+	{ 0x37, "EVE4_P2" }
+};
+
+static struct l3_flagmux_data *dra_l3_flagmux[] = {
+	&dra_l3_flagmux_clk1,
+	&dra_l3_flagmux_clk2,
+	&dra_l3_flagmux_clk3,
+};
+
+static const struct omap_l3 dra_l3_data = {
+	.l3_base = { [1] = L3_BASE_IS_SUBMODULE },
+	.l3_flagmux = dra_l3_flagmux,
+	.num_modules = ARRAY_SIZE(dra_l3_flagmux),
+	.l3_masters = dra_l3_masters,
+	.num_masters = ARRAY_SIZE(dra_l3_masters),
+	/* The 6 MSBs of register field used to distinguish initiator */
+	.mst_addr_mask = 0xFC,
+};
+
+/* AM4372 data */
+static struct l3_target_data am4372_l3_target_data_200f[] = {
+	{0xf00,  "EMIF",},
+	{0x1200, "DES",},
+	{0x400,  "OCMCRAM",},
+	{0x700,  "TPTC0",},
+	{0x800,  "TPTC1",},
+	{0x900,  "TPTC2"},
+	{0xb00,  "TPCC",},
+	{0xd00,  "DEBUGSS",},
+	{0xdead, L3_TARGET_NOT_SUPPORTED,},
+	{0x200,  "SHA",},
+	{0xc00,  "SGX530",},
+	{0x500,  "AES0",},
+	{0xa00,  "L4_FAST",},
+	{0x300,  "MPUSS_L2_RAM",},
+	{0x100,  "ICSS",},
+};
+
+static struct l3_flagmux_data am4372_l3_flagmux_200f = {
+	.offset = 0x1000,
+	.l3_targ = am4372_l3_target_data_200f,
+	.num_targ_data = ARRAY_SIZE(am4372_l3_target_data_200f),
+};
+
+static struct l3_target_data am4372_l3_target_data_100s[] = {
+	{0x100, "L4_PER_0",},
+	{0x200, "L4_PER_1",},
+	{0x300, "L4_PER_2",},
+	{0x400, "L4_PER_3",},
+	{0x800, "McASP0",},
+	{0x900, "McASP1",},
+	{0xC00, "MMCHS2",},
+	{0x700, "GPMC",},
+	{0xD00, "L4_FW",},
+	{0xdead, L3_TARGET_NOT_SUPPORTED,},
+	{0x500, "ADCTSC",},
+	{0xE00, "L4_WKUP",},
+	{0xA00, "MAG_CARD",},
+};
+
+static struct l3_flagmux_data am4372_l3_flagmux_100s = {
+	.offset = 0x600,
+	.l3_targ = am4372_l3_target_data_100s,
+	.num_targ_data = ARRAY_SIZE(am4372_l3_target_data_100s),
+};
+
+static struct l3_masters_data am4372_l3_masters[] = {
+	{ 0x0, "M1 (128-bit)"},
+	{ 0x1, "M2 (64-bit)"},
+	{ 0x4, "DAP"},
+	{ 0x5, "P1500"},
+	{ 0xC, "ICSS0"},
+	{ 0xD, "ICSS1"},
+	{ 0x14, "Wakeup Processor"},
+	{ 0x18, "TPTC0 Read"},
+	{ 0x19, "TPTC0 Write"},
+	{ 0x1A, "TPTC1 Read"},
+	{ 0x1B, "TPTC1 Write"},
+	{ 0x1C, "TPTC2 Read"},
+	{ 0x1D, "TPTC2 Write"},
+	{ 0x20, "SGX530"},
+	{ 0x21, "OCP WP Traffic Probe"},
+	{ 0x22, "OCP WP DMA Profiling"},
+	{ 0x23, "OCP WP Event Trace"},
+	{ 0x25, "DSS"},
+	{ 0x28, "Crypto DMA RD"},
+	{ 0x29, "Crypto DMA WR"},
+	{ 0x2C, "VPFE0"},
+	{ 0x2D, "VPFE1"},
+	{ 0x30, "GEMAC"},
+	{ 0x34, "USB0 RD"},
+	{ 0x35, "USB0 WR"},
+	{ 0x36, "USB1 RD"},
+	{ 0x37, "USB1 WR"},
+};
+
+static struct l3_flagmux_data *am4372_l3_flagmux[] = {
+	&am4372_l3_flagmux_200f,
+	&am4372_l3_flagmux_100s,
+};
+
+static const struct omap_l3 am4372_l3_data = {
+	.l3_flagmux = am4372_l3_flagmux,
+	.num_modules = ARRAY_SIZE(am4372_l3_flagmux),
+	.l3_masters = am4372_l3_masters,
+	.num_masters = ARRAY_SIZE(am4372_l3_masters),
+	/* All 6 bits of register field used to distinguish initiator */
+	.mst_addr_mask = 0x3F,
+};
+
+#endif	/* __OMAP_L3_NOC_H */