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authorOlof Johansson <olof@lixom.net>2014-05-27 00:29:22 +0400
committerOlof Johansson <olof@lixom.net>2014-05-27 00:29:22 +0400
commit75d6bc5f7ab41a166deb6e9ebc8434706799fb00 (patch)
treea9fddb9739c2e478d61d47eb5bf22866fe27a7f7 /drivers/bus
parent1b7f0c7b931864642e825a6fd01cde5881b064cc (diff)
parent27b7d5f3cc49f2e5cd6c005d73696058b7140c5c (diff)
downloadlinux-75d6bc5f7ab41a166deb6e9ebc8434706799fb00.tar.xz
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 <olof@lixom.net>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/omap_l3_noc.c406
-rw-r--r--drivers/bus/omap_l3_noc.h545
2 files changed, 651 insertions, 300 deletions
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
index feeecae623f6..531ae591783b 100644
--- a/drivers/bus/omap_l3_noc.c
+++ b/drivers/bus/omap_l3_noc.c
@@ -1,43 +1,45 @@
/*
- * 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 <santosh.shilimkar@ti.com>
* Sricharan <r.sricharan@ti.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.
+ * 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:
@@ -53,214 +55,264 @@
* can be trapped as well. But the trapping is implemented as part
* secure software and hence need not be implemented here.
*/
-static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
+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;
+ }
- struct omap4_l3 *l3 = _l3;
- int inttype, i, k;
+ 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 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);
-
- 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;
-
- 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;
-
- default:
- /* Nothing to be handled here as of now */
- break;
+ ret = l3_handle_target(l3, base, flag_mux, err_src);
+
+ /*
+ * 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)");
+
+ 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);
+
+ /* 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 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);
+
+static int omap_l3_probe(struct platform_device *pdev)
{
- static struct omap4_l3 *l3;
- struct resource *res;
- int ret;
+ 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 = kzalloc(sizeof(*l3), GFP_KERNEL);
+ 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;
- }
-
- 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;
- }
+ /* Get mem resources */
+ for (i = 0, res_idx = 0; i < l3->num_modules; i++) {
+ struct resource *res;
- 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);
diff --git a/drivers/bus/omap_l3_noc.h b/drivers/bus/omap_l3_noc.h
index a6ce34dc4814..551e01061434 100644
--- a/drivers/bus/omap_l3_noc.h
+++ b/drivers/bus/omap_l3_noc.h
@@ -1,29 +1,25 @@
/*
- * 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 <santosh.shilimkar@ti.com>
* sricharan <r.sricharan@ti.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.
+ * 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 MAX_L3_MODULES 3
+#define MAX_CLKDM_TARGETS 31
-#define L3_MODULES 3
#define CLEAR_STDERR_LOG (1 << 31)
#define CUSTOM_ERROR 0x2
#define STANDARD_ERROR 0x0
@@ -33,63 +29,165 @@
/* 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 L3_TARGET_NOT_SUPPORTED NULL
+
+#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",
+};
-#define NUM_OF_L3_MASTERS (sizeof(l3_masters)/sizeof(l3_masters[0]))
-
-static u32 l3_flagmux[L3_MODULES] = {
- 0x500,
- 0x1000,
- 0X0200
-};
-
-/* 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"},
@@ -117,60 +215,261 @@ static struct l3_masters_data {
{ 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 u32 *l3_targ[L3_MODULES] = {
- l3_targ_inst_clk1,
- l3_targ_inst_clk2,
- l3_targ_inst_clk3,
-};
-
-struct omap4_l3 {
- struct device *dev;
- struct clk *ick;
+static struct l3_flagmux_data *omap_l3_flagmux[] = {
+ &omap_l3_flagmux_clk1,
+ &omap_l3_flagmux_clk2,
+ &omap_l3_flagmux_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,
+};
- /* memory base */
- void __iomem *l3_base[L3_MODULES];
+/* 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",},
+};
- int debug_irq;
- int app_irq;
+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" }
};
-#endif
+
+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 */