diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3455-Revert-amd-i2c-AMD-MP2-I2C-using-AMD-R-PCI-E-MP2-Com.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3455-Revert-amd-i2c-AMD-MP2-I2C-using-AMD-R-PCI-E-MP2-Com.patch | 1358 |
1 files changed, 1358 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3455-Revert-amd-i2c-AMD-MP2-I2C-using-AMD-R-PCI-E-MP2-Com.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3455-Revert-amd-i2c-AMD-MP2-I2C-using-AMD-R-PCI-E-MP2-Com.patch new file mode 100644 index 00000000..2c53a86e --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3455-Revert-amd-i2c-AMD-MP2-I2C-using-AMD-R-PCI-E-MP2-Com.patch @@ -0,0 +1,1358 @@ +From b0e8d4e2eee412f5b2cc2450046c3021d75d71c8 Mon Sep 17 00:00:00 2001 +From: Sudheesh Mavila <sudheesh.mavila@amd.com> +Date: Fri, 1 Jun 2018 10:12:32 +0530 +Subject: [PATCH 3455/4131] Revert " amd-i2c : AMD-MP2-I2C using AMD(R) PCI-E + MP2 Communication Driver" + +This reverts commit 5b3b9ccf4035c0d1886fbb72e9e89eaa3b9078f6. +--- + drivers/i2c/busses/Kconfig | 11 - + drivers/i2c/busses/Makefile | 2 - + drivers/i2c/busses/i2c-amd-mp2.c | 339 ------------------- + drivers/i2c/busses/pcie_mp2_amd.c | 690 -------------------------------------- + drivers/i2c/busses/pcie_mp2_amd.h | 249 -------------- + 5 files changed, 1291 deletions(-) + mode change 100755 => 100644 drivers/i2c/busses/Kconfig + mode change 100755 => 100644 drivers/i2c/busses/Makefile + delete mode 100755 drivers/i2c/busses/i2c-amd-mp2.c + delete mode 100755 drivers/i2c/busses/pcie_mp2_amd.c + delete mode 100755 drivers/i2c/busses/pcie_mp2_amd.h + +diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig +old mode 100755 +new mode 100644 +index 29aa1f8..45a3f3ca +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -77,17 +77,6 @@ config I2C_AMD8111 + This driver can also be built as a module. If so, the module + will be called i2c-amd8111. + +-config I2C_AMD_MP2 +- tristate "AMD MP2" +- depends on PCI +- help +- If you say yes to this option, support will be included for mp2 +- I2C interface. +- +- This driver can also be built as a module. If so, the module +- will be called i2c-pcie_mp2_amd. +- +- + config I2C_HIX5HD2 + tristate "Hix5hd2 high-speed I2C driver" + depends on ARCH_HISI || ARCH_HIX5HD2 || COMPILE_TEST +diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile +old mode 100755 +new mode 100644 +index d837f7e..2ce8576 +--- a/drivers/i2c/busses/Makefile ++++ b/drivers/i2c/busses/Makefile +@@ -113,8 +113,6 @@ obj-$(CONFIG_I2C_XLR) += i2c-xlr.o + obj-$(CONFIG_I2C_XLP9XX) += i2c-xlp9xx.o + obj-$(CONFIG_I2C_RCAR) += i2c-rcar.o + obj-$(CONFIG_I2C_ZX2967) += i2c-zx2967.o +-obj-$(CONFIG_I2C_AMD_MP2) += pcie_mp2_amd.o +-obj-$(CONFIG_I2C_AMD_MP2) += i2c-amd-mp2.o + + # External I2C/SMBus adapter drivers + obj-$(CONFIG_I2C_DIOLAN_U2C) += i2c-diolan-u2c.o +diff --git a/drivers/i2c/busses/i2c-amd-mp2.c b/drivers/i2c/busses/i2c-amd-mp2.c +deleted file mode 100755 +index d995dd2..0000000 +--- a/drivers/i2c/busses/i2c-amd-mp2.c ++++ /dev/null +@@ -1,339 +0,0 @@ +-/* +- * AMD MP2 I2C adapter driver (master only). +- * +- * +- * Copyright (C) 2017 Advanced Mirco Devices . +- * +- * +- * +- * ---------------------------------------------------------------------------- +- * +- * 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. +- * ---------------------------------------------------------------------------- +- * +- */ +- +-#include <linux/kernel.h> +-#include <linux/module.h> +-#include <linux/types.h> +-#include <linux/slab.h> +-#include <linux/i2c.h> +-#include <linux/platform_device.h> +-#include <linux/mfd/dln2.h> +-#include <linux/acpi.h> +-#include <linux/delay.h> +-#include "pcie_mp2_amd.h" +- +-#define DRIVER_NAME "AMD-MP2-I2C" +- +-struct amd_mp2_i2c { +- struct platform_device *pdev; +- struct i2c_adapter adapter; +- struct amd_i2c_dev amd_mp2; +- struct completion msg_complete; +- struct i2c_msg *msg_buf; +- bool is_configured; +- int bus_id; +- +-}; +- +-static int read_completion(union i2c_event_base event, void *dev_ctx) +-{ +- struct amd_mp2_i2c *i2c_dev = (struct amd_mp2_i2c *)dev_ctx; +- struct amd_i2c_dev *dev = &i2c_dev->amd_mp2; +- int i = 0; +- +- pr_devel("%s:%s Enter\n", DRIVER_NAME, __func__); +- +- if (!dev) { +- pr_err("%s:%s Could not find amd_mp2_dev in ctx\n", DRIVER_NAME, +- __func__); +- complete(&i2c_dev->msg_complete); +- return -EINVAL; +- } +- if (event.r.status == i2c_readcomplete_event) { +- if (event.r.length <= 32) { +- pr_err(" in %s i2c_dev->msg_buf :%p\n", +- __func__, i2c_dev->msg_buf); +- +- memcpy(i2c_dev->msg_buf->buf, (unsigned char *)event.buf, +- event.r.length); +- +- for (i = 0; i < ((event.r.length + 3) / 4); i++) +- pr_devel("%s:%s readdata:%x\n", DRIVER_NAME, __func__, +- event.buf[i]); +- +- } else { +- memcpy(i2c_dev->msg_buf->buf, +- (unsigned char *)dev->i2c_read_config.buf, event.r.length); +- pr_info("%s:%s virt:%llx phy_addr:%llx\n", DRIVER_NAME, __func__, +- (u64)dev->i2c_read_config.buf, +- (u64)dev->i2c_read_config.phy_addr); +- for (i = 0; i < ((event.r.length + 3) / 4); i++) +- pr_devel("%s:%s readdata:%x\n", DRIVER_NAME, __func__, +- ((unsigned int *)dev->i2c_read_config.buf)[i]); +- } +- pr_info("%s:%s success\n", DRIVER_NAME, __func__); +- complete(&i2c_dev->msg_complete); +- } +- +- pr_devel("%s:%s Exit\n", DRIVER_NAME, __func__); +- return 0; +-} +- +-static int write_completion(union i2c_event_base event, void *dev_ctx) +-{ +- struct amd_mp2_i2c *i2c_dev = (struct amd_mp2_i2c *)dev_ctx; +- struct amd_i2c_dev *dev = &i2c_dev->amd_mp2; +- +- pr_devel("%s:%s Enter\n", DRIVER_NAME, __func__); +- +- if (!dev) { +- pr_err("%s:%s Could not find amd_mp2_dev in ctx\n", DRIVER_NAME, +- __func__); +- complete(&i2c_dev->msg_complete); +- return -EINVAL; +- } +- +- if (event.r.status == i2c_writecomplete_event) { +- pr_info("%s:%s success\n", DRIVER_NAME, __func__); +- complete(&i2c_dev->msg_complete); +- } +- +- pr_devel("%s:%s Exit\n", DRIVER_NAME, __func__); +- return 0; +-} +- +-static int connect_completion(union i2c_event_base event, void *dev_ctx) +-{ +- struct amd_mp2_i2c *i2c_dev = (struct amd_mp2_i2c *)dev_ctx; +- struct amd_i2c_dev *dev = &i2c_dev->amd_mp2; +- +- pr_devel("%s:%s Enter\n", DRIVER_NAME, __func__); +- +- if (!dev) { +- pr_err("%s:%s Could not find amd_mp2_dev in ctx\n", DRIVER_NAME, +- __func__); +- complete(&i2c_dev->msg_complete); +- return -EINVAL; +- } +- +- if (event.r.status == i2c_busenable_complete) { +- pr_info("%s:%s success\n", DRIVER_NAME, __func__); +- complete(&i2c_dev->msg_complete); +- } +- +- pr_devel("%s:%s Exit\n", DRIVER_NAME, __func__); +- return 0; +-} +- +-static const struct amd_i2c_pci_ops data_handler = { +- .read_complete = read_completion, +- .write_complete = write_completion, +- .connect_complete = connect_completion, +-}; +- +-static int mp2_i2c_pci_configure(struct amd_mp2_i2c *i2c_dev, int slaveaddr) +-{ +- int r; +- struct amd_i2c_dev *dev = &i2c_dev->amd_mp2; +- +- amd_i2c_register_cb(dev->pdev, &data_handler, (void *)i2c_dev); +- dev->i2c_connect_config.i2c_bus_id = i2c_dev->bus_id; +- dev->i2c_connect_config.dev_addr = slaveaddr; +- dev->i2c_connect_config.connection_speed = speed400k; +- +- r = amd_i2c_connect(dev->pdev, dev->i2c_connect_config); +- if (r) +- return -1; +- +- mdelay(100); +- +- dev->i2c_write_config.i2c_bus_id = i2c_dev->bus_id; +- dev->i2c_write_config.dev_addr = slaveaddr; +- dev->i2c_write_config.connection_speed = speed400k; +- +- dev->i2c_read_config.i2c_bus_id = i2c_dev->bus_id; +- dev->i2c_read_config.dev_addr = slaveaddr; +- dev->i2c_read_config.connection_speed = speed400k; +- +- return 0; +-} +- +-static int amd_mp2_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +-{ +- struct amd_mp2_i2c *dev = i2c_get_adapdata(adap); +- int i = 0; +- unsigned long timeout; +- struct i2c_msg *pmsg; +- unsigned char *buf; +- struct amd_i2c_dev *i2c_amd_mp2 = &dev->amd_mp2; +- +- pr_devel("%s called\n", __func__); +- +- reinit_completion(&dev->msg_complete); +- +- if (dev->is_configured == 0) { +- pr_err(" call the configure\n"); +- mp2_i2c_pci_configure(dev, msgs->addr); +- timeout = wait_for_completion_timeout(&dev->msg_complete, 50); +- dev->is_configured = 1; +- } +- pr_err(" %s:%s dev:%p dev->amd_mp2=%p dev->amd_mp2.pdev:%p\n num =%d", +- DRIVER_NAME, __func__, dev, &dev->amd_mp2, dev->amd_mp2.pdev, num); +- +- for (i = 0; i < num; i++) { +- pmsg = &msgs[i]; +- if (pmsg->flags & I2C_M_RD) { +- pr_devel("%s Read call\n", __func__); +- buf = kzalloc(pmsg->len, GFP_KERNEL); +- i2c_amd_mp2->i2c_read_config.buf = buf; +- i2c_amd_mp2->i2c_read_config.length = pmsg->len; +- i2c_amd_mp2->i2c_read_config.phy_addr = virt_to_phys(buf); +- dev->msg_buf = pmsg; +- pr_err( +- " %s:%s virt:%llx phy_addr:%llx i2c_amd_mp2->msg_buf :%p pmsg:%p\n", +- DRIVER_NAME, __func__, +- (u64)i2c_amd_mp2->i2c_read_config.buf, +- (u64)i2c_amd_mp2->i2c_read_config.phy_addr, +- dev->msg_buf, pmsg); +- pr_devel("in pre read\n"); +- amd_i2c_read(i2c_amd_mp2->pdev, i2c_amd_mp2->i2c_read_config); +- timeout = wait_for_completion_timeout(&dev->msg_complete, 50); +- pr_devel("in post read\n"); +- +- kfree(buf); +- } else { +- pr_devel("%s write call\n", __func__); +- i2c_amd_mp2->i2c_write_config.buf = (unsigned int *)pmsg->buf; +- i2c_amd_mp2->i2c_write_config.length = pmsg->len; +- +- pr_devel(" %s:%s virt:%llx\n", DRIVER_NAME, __func__, +- (u64)i2c_amd_mp2->i2c_write_config.buf); +- +- pr_devel(" in pre write\n"); +- amd_i2c_write(i2c_amd_mp2->pdev, i2c_amd_mp2->i2c_write_config); +- +- timeout = wait_for_completion_timeout(&dev->msg_complete, 50); +- pr_devel(" in post write\n"); +- } +- } +- return num; +-} +- +-static u32 amd_mp2_func(struct i2c_adapter *a) +-{ +- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA +- | I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_PROC_CALL +- | I2C_FUNC_SMBUS_I2C_BLOCK; +-} +- +-static const struct i2c_algorithm amd_mp2_algorithm = { +- .master_xfer = amd_mp2_xfer, +- .functionality = amd_mp2_func, +-}; +- +-static int amd_mp2_probe(struct platform_device *pdev) +-{ +- int ret; +- struct amd_mp2_i2c *i2c_dev; +- struct device *dev = &pdev->dev; +- acpi_handle handle = ACPI_HANDLE(&pdev->dev); +- struct acpi_device *adev; +- const char *uid = NULL; +- +- pr_devel("%s is called\n", __func__); +- i2c_dev = devm_kzalloc(dev, sizeof(*i2c_dev), GFP_KERNEL); +- if (!i2c_dev) +- return -ENOMEM; +- +- i2c_dev->pdev = pdev; +- +- if (!acpi_bus_get_device(handle, &adev)) { +- pr_err(" i2c0 pdev->id=%s\n", adev->pnp.unique_id); +- uid = adev->pnp.unique_id; +- } +- +- if (strcmp(uid, "0") == 0) { +- pr_err(" bus id is 0\n"); +- i2c_dev->bus_id = 0; +- } +- +- pr_devel(" i2c1 pdev->id=%s\n", uid); +- if (strcmp(uid, "1") == 0) { +- pr_err(" bus id is 1\n"); +- i2c_dev->bus_id = 1; +- } +- /* setup i2c adapter description */ +- i2c_dev->adapter.owner = THIS_MODULE; +- i2c_dev->adapter.algo = &amd_mp2_algorithm; +- i2c_dev->adapter.dev.parent = dev; +- i2c_dev->adapter.algo_data = i2c_dev; +- ACPI_COMPANION_SET(&i2c_dev->adapter.dev, ACPI_COMPANION(&pdev->dev)); +- i2c_dev->adapter.dev.of_node = dev->of_node; +- snprintf(i2c_dev->adapter.name, sizeof(i2c_dev->adapter.name), "%s-%s", +- "i2c_dev-i2c", dev_name(pdev->dev.parent)); +- +- i2c_dev->amd_mp2.pdev = pci_get_device(PCI_VENDOR_ID_AMD, +- PCI_DEVICE_ID_AMD_MP2, NULL); +- +- if (!i2c_dev->amd_mp2.pdev) { +- pr_err("%s Could not find pdev in i2c\n", __func__); +- return -EINVAL; +- } +- platform_set_drvdata(pdev, i2c_dev); +- +- i2c_set_adapdata(&i2c_dev->adapter, i2c_dev); +- +- init_completion(&i2c_dev->msg_complete); +- /* and finally attach to i2c layer */ +- ret = i2c_add_adapter(&i2c_dev->adapter); +- +- if (ret < 0) +- pr_err(" i2c add adpater failed =%d", ret); +- //mdelay(20); +- pr_info( +- " %s:%s i2c_dev:%p i2c_dev->amd_mp2=%p i2c_dev->amd_mp2.pdev:%p i2c_dev->adapter.nr =%d\n", +- DRIVER_NAME, __func__, i2c_dev, &i2c_dev->amd_mp2, +- i2c_dev->amd_mp2.pdev, i2c_dev->adapter.nr); +- +- return ret; +-} +- +-static int amd_mp2_remove(struct platform_device *pdev) +-{ +- struct amd_mp2_i2c *i2c_dev = platform_get_drvdata(pdev); +- +- i2c_del_adapter(&i2c_dev->adapter); +- +- return 0; +-} +- +-static const struct acpi_device_id amd_mp2_i2c_acpi_match[] = { +- { "AMDI0011" }, +- { }, +-}; +- +-static struct platform_driver amd_mp2_driver = { +- .probe = amd_mp2_probe, +- .remove = amd_mp2_remove, +- .driver = { +- .name = "amd-mp2-i2c", +- .acpi_match_table = ACPI_PTR(amd_mp2_i2c_acpi_match), +- }, +-}; +- +-module_platform_driver(amd_mp2_driver); +- +-MODULE_AUTHOR("Nehal Shah <nehal-bakulchandra.shah@amd.com>"); +-MODULE_DESCRIPTION("Driver for the AMD MP2 I2C master interface"); +-MODULE_LICENSE("GPL"); +-MODULE_ALIAS("platform:amd-mp2-i2c"); +diff --git a/drivers/i2c/busses/pcie_mp2_amd.c b/drivers/i2c/busses/pcie_mp2_amd.c +deleted file mode 100755 +index a14fc53..0000000 +--- a/drivers/i2c/busses/pcie_mp2_amd.c ++++ /dev/null +@@ -1,690 +0,0 @@ +-/* +- * This file is provided under a dual BSD/GPLv2 license. When using or +- * redistributing this file, you may do so under either license. +- * +- * GPL LICENSE SUMMARY +- * +- * Copyright (C) 2017 Advanced Micro Devices, Inc. All Rights Reserved. +- * +- * This program is free software; you can redistribute it and/or modify +- * it under the terms of version 2 of the GNU General Public License as +- * published by the Free Software Foundation. +- * +- * BSD LICENSE +- * +- * Copyright (C) 2017 Advanced Micro Devices, Inc. All Rights Reserved. +- * +- * Redistribution and use in source and binary forms, with or without +- * modification, are permitted provided that the following conditions +- * are met: +- * +- * * Redistributions of source code must retain the above copyright +- * notice, this list of conditions and the following disclaimer. +- * * Redistributions in binary form must reproduce the above copy +- * notice, this list of conditions and the following disclaimer in +- * the documentation and/or other materials provided with the +- * distribution. +- * * Neither the name of AMD Corporation nor the names of its +- * contributors may be used to endorse or promote products derived +- * from this software without specific prior written permission. +- * +- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +- * OWNER 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. +- * +- * AMD PCIe MP2 Communication Driver +- * Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> +- */ +- +-#include <linux/debugfs.h> +-#include <linux/interrupt.h> +-#include <linux/module.h> +-#include <linux/pci.h> +-#include <linux/slab.h> +-#include "pcie_mp2_amd.h" +- +-#define DRIVER_NAME "pcie_mp2_amd" +-#define DRIVER_DESC "AMD(R) PCI-E MP2 Communication Driver" +-#define DRIVER_VER "1.0" +- +-MODULE_DESCRIPTION(DRIVER_DESC); +-MODULE_VERSION(DRIVER_VER); +-MODULE_LICENSE("Dual BSD/GPL"); +-MODULE_AUTHOR("AMD Inc."); +- +-static const struct file_operations amd_mp2_debugfs_info; +-static struct dentry *debugfs_dir; +- +-int amd_i2c_connect(struct pci_dev *dev, +- struct i2c_connect_config i2c_connect_config) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(dev); +- union i2c_cmd_base i2c_cmd_base; +- +- dev_dbg(ndev_dev(privdata), "%s Enter addr: %x id: %d\n", __func__, +- i2c_connect_config.dev_addr, i2c_connect_config.i2c_bus_id); +- +- //TODO: Need to keep track of the request, maybe with a queue +- i2c_cmd_base.ul = 0; +- i2c_cmd_base.s.i2c_cmd = i2c_enable; +- i2c_cmd_base.s.bus_id = i2c_connect_config.i2c_bus_id; +- i2c_cmd_base.s.i2c_speed = i2c_connect_config.connection_speed; +- +- if (i2c_cmd_base.s.bus_id == I2C_BUS_1) { +- dev_info(ndev_dev(privdata), "%s writing:%x busid:%d reg:%llx\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG1); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG1); +- } else if (i2c_cmd_base.s.bus_id == I2C_BUS_0) { +- dev_info(ndev_dev(privdata), "%s writing:%x at busid:%d reg:%llx\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG0); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG0); +- } else { +- dev_err(ndev_dev(privdata), "%s Invalid bus id\n", __func__); +- return -EINVAL; +- } +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +- return 0; +-} +-EXPORT_SYMBOL_GPL(amd_i2c_connect); +- +-int amd_i2c_read(struct pci_dev *dev, struct i2c_read_config i2c_read_config) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(dev); +- union i2c_cmd_base i2c_cmd_base; +- +- dev_dbg(ndev_dev(privdata), "%s Enter addr: %x id: %d\n", __func__, +- i2c_read_config.dev_addr, i2c_read_config.i2c_bus_id); +- +- //TODO: Need to keep track of the request, maybe with a queue +- i2c_cmd_base.ul = 0; +- i2c_cmd_base.s.i2c_cmd = i2c_read; +- i2c_cmd_base.s.dev_addr = i2c_read_config.dev_addr; +- i2c_cmd_base.s.length = i2c_read_config.length; +- i2c_cmd_base.s.bus_id = i2c_read_config.i2c_bus_id; +- +- if (i2c_read_config.length <= 32) { +- i2c_cmd_base.s.mem_type = use_c2pmsg; +- privdata->eventval.buf = (u32 *)i2c_read_config.buf; +- if (!privdata->eventval.buf) { +- dev_err(ndev_dev(privdata), "%s no mem for buf received\n", +- __func__); +- return -ENOMEM; +- } +- dev_dbg(ndev_dev(privdata), "%s buf: %llx\n", __func__, +- (u64)privdata->eventval.buf); +- } else { +- i2c_cmd_base.s.mem_type = use_dram; +- privdata->i2c_read_config.phy_addr = i2c_read_config.phy_addr; +- privdata->i2c_read_config.buf = i2c_read_config.buf; +- dev_dbg(ndev_dev(privdata), "%s phy_addr:%llx\n", __func__, +- (u64)privdata->i2c_read_config.phy_addr); +- write64((u64)privdata->i2c_read_config.phy_addr, +- privdata->mmio + AMD_C2P_MSG2); +- } +- +- switch (i2c_read_config.connection_speed) { +- case 0: +- i2c_cmd_base.s.i2c_speed = speed100k; +- break; +- case 1: +- i2c_cmd_base.s.i2c_speed = speed400k; +- break; +- case 2: +- i2c_cmd_base.s.i2c_speed = speed1000k; +- break; +- case 3: +- i2c_cmd_base.s.i2c_speed = speed1400k; +- break; +- case 4: +- i2c_cmd_base.s.i2c_speed = speed3400k; +- break; +- default: +- dev_err(ndev_dev(privdata), "Invalid ConnectionSpeed\n"); +- } +- +- if (i2c_cmd_base.s.bus_id == I2C_BUS_1) { +- dev_info(ndev_dev(privdata), +- "%s !==== writing:%x ====! at busid:%d reg:%llx len:%d\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG1, i2c_cmd_base.s.length); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG1); +- } else if (i2c_cmd_base.s.bus_id == I2C_BUS_0) { +- dev_info(ndev_dev(privdata), +- "%s !==== writing:%x ====! at busid:%d reg:%llx len:%d\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG0, i2c_cmd_base.s.length); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG0); +- } else { +- dev_dbg(ndev_dev(privdata), "%s Invalid bus id\n", __func__); +- return -EINVAL; +- } +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +- return 0; +-} +-EXPORT_SYMBOL_GPL(amd_i2c_read); +- +-int amd_i2c_write(struct pci_dev *dev, struct i2c_write_config i2c_write_config) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(dev); +- union i2c_cmd_base i2c_cmd_base; +- int i = 0; +- +- dev_dbg(ndev_dev(privdata), "%s Enter addr: %x id: %d\n", __func__, +- i2c_write_config.dev_addr, i2c_write_config.i2c_bus_id); +- +- //TODO: Need to keep track of the request, maybe with a queue +- i2c_cmd_base.ul = 0; +- i2c_cmd_base.s.i2c_cmd = i2c_write; +- i2c_cmd_base.s.dev_addr = i2c_write_config.dev_addr; +- i2c_cmd_base.s.length = i2c_write_config.length; +- i2c_cmd_base.s.bus_id = i2c_write_config.i2c_bus_id; +- +- switch (i2c_write_config.connection_speed) { +- case 0: +- i2c_cmd_base.s.i2c_speed = speed100k; +- break; +- case 1: +- i2c_cmd_base.s.i2c_speed = speed400k; +- break; +- case 2: +- i2c_cmd_base.s.i2c_speed = speed1000k; +- break; +- case 3: +- i2c_cmd_base.s.i2c_speed = speed1400k; +- break; +- case 4: +- i2c_cmd_base.s.i2c_speed = speed3400k; +- break; +- default: +- dev_err(ndev_dev(privdata), "Invalid ConnectionSpeed\n"); +- } +- +- if (i2c_write_config.length <= 32) { +- i2c_cmd_base.s.mem_type = use_c2pmsg; +- for (i = 0; i < ((i2c_write_config.length + 3) / 4); i++) { +- writel(i2c_write_config.buf[i], +- privdata->mmio + (AMD_C2P_MSG2 + i * 4)); +- dev_dbg(ndev_dev(privdata), "writing %x at %llx\n", +- i2c_write_config.buf[i], +- (u64)privdata->mmio + AMD_C2P_MSG2 + i * 4); +- } +- } else { +- //TODO: verification pending +- i2c_cmd_base.s.mem_type = use_dram; +- privdata->i2c_write_config.phy_addr = i2c_write_config.phy_addr; +- dev_dbg(ndev_dev(privdata), "%s phy_addr:%llx\n", __func__, +- (u64)privdata->i2c_write_config.phy_addr); +- write64((u64)privdata->i2c_write_config.phy_addr, +- privdata->mmio + AMD_C2P_MSG2); +- } +- +- if (i2c_cmd_base.s.bus_id == I2C_BUS_1) { +- dev_info(ndev_dev(privdata), +- "%s <==== writing:%x ====> at busid:%d reg:%llx len:%d\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG0, i2c_cmd_base.s.length); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG1); +- } else if (i2c_cmd_base.s.bus_id == I2C_BUS_0) { +- dev_info(ndev_dev(privdata), +- "%s <==== writing:%x ====> at busid:%d reg:%llx len:%d\n", +- __func__, i2c_cmd_base.ul, i2c_cmd_base.s.bus_id, +- (u64)privdata->mmio + AMD_C2P_MSG0, i2c_cmd_base.s.length); +- writel(i2c_cmd_base.ul, privdata->mmio + AMD_C2P_MSG0); +- } else { +- dev_dbg(ndev_dev(privdata), "%s Invalid bus id\n", __func__); +- return -EINVAL; +- } +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +- return 0; +-} +-EXPORT_SYMBOL_GPL(amd_i2c_write); +- +-int amd_i2c_register_cb(struct pci_dev *dev, const struct amd_i2c_pci_ops *ops, +- void *dev_ctx) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(dev); +- +- dev_dbg(ndev_dev(privdata), "%s Enter\n", __func__); +- privdata->ops = ops; +- privdata->ctx = dev_ctx; +- if (!privdata->ops) { +- dev_err(ndev_dev(privdata), "%s ops is NULL %d\n", __func__, __LINE__); +- return -EINVAL; +- } +- +- if (!privdata->ctx) { +- dev_err(ndev_dev(privdata), "%s ctx is NULL %d\n", __func__, __LINE__); +- return -EINVAL; +- } +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +- return 0; +-} +-EXPORT_SYMBOL_GPL(amd_i2c_register_cb); +- +-static void amd_mp2_pci_work(struct work_struct *work) +-{ +- struct amd_mp2_dev *privdata = mp2_dev(work); +- u32 readdata = 0; +- int i = 0; +- int sts = privdata->eventval.r.status; +- int res = privdata->eventval.r.response; +- +- dev_dbg(ndev_dev(privdata), "%s Enter\n", __func__); +- +- if (res == command_success && sts == i2c_readcomplete_event) { +- if (privdata->ops->read_complete) { +- if (privdata->eventval.r.length <= 32) { +- for (i = 0; i < ((privdata->eventval.r.length + 3) / 4); i++) { +- readdata = readl(privdata->mmio + (AMD_C2P_MSG2 + i * 4)); +- dev_dbg(ndev_dev(privdata), "%s readdata:%x offset:%llx\n", +- __func__, readdata, +- (u64)(privdata->mmio + (AMD_C2P_MSG2 + i * 4))); +- privdata->eventval.buf[i] = readdata; +- } +- privdata->ops->read_complete(privdata->eventval, privdata->ctx); +- } else { +- dev_dbg(ndev_dev(privdata), "%s virt:%llx phy_addr:%llx\n", +- __func__, (u64)privdata->i2c_read_config.buf, +- (u64)privdata->i2c_read_config.phy_addr); +- for (i = 0; i < ((privdata->eventval.r.length + 3) / 4); i++) +- dev_dbg(ndev_dev(privdata), "%s readdata:%x\n", __func__, +- ((u32 *)privdata->i2c_read_config.buf)[i]); +- privdata->ops->read_complete(privdata->eventval, privdata->ctx); +- } +- dev_dbg(ndev_dev(privdata), +- "%s sending I2CReadCompleteEvent virtual address %llx\n", +- __func__, (u64)privdata->eventval.buf); +- } +- } else if (res == command_success && sts == i2c_writecomplete_event) { +- if (privdata->ops->write_complete) { +- dev_dbg(ndev_dev(privdata), "%s sending I2CWriteCompleteEvent\n", +- __func__); +- privdata->ops->write_complete(privdata->eventval, privdata->ctx); +- } +- } else if (res == command_success && sts == i2c_busenable_complete) { +- if (privdata->ops->connect_complete) { +- dev_dbg(ndev_dev(privdata), "%s sending I2CBusEnableComplete\n", +- __func__); +- privdata->ops->connect_complete(privdata->eventval, privdata->ctx); +- } +- } else { +- dev_err(ndev_dev(privdata), "ERROR!!:%s nothing to be handled !\n", +- __func__); +- } +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +-} +- +-static irqreturn_t amd_mp2_irq_isr(int irq, void *dev) +-{ +- struct amd_mp2_dev *privdata = dev; +- u32 val = 0; +- +- dev_dbg(ndev_dev(privdata), "%s Enter\n", __func__); +- +- val = readl(privdata->mmio + AMD_P2C_MSG1); +- if (val != 0) { +- dev_dbg(ndev_dev(privdata), +- "*** received interrupt i2c0*** response: %x\n", val); +- writel(0, privdata->mmio + AMD_P2C_MSG_INTEN); +- privdata->eventval.ul = val; +- } else { +- val = readl(privdata->mmio + AMD_P2C_MSG2); +- if (val != 0) { +- dev_dbg(ndev_dev(privdata), +- "*** received interrupt i2c1*** response: %x\n", val); +- writel(0, privdata->mmio + AMD_P2C_MSG_INTEN); +- privdata->eventval.ul = val; +- } +- } +- +- if (!privdata->ops) { +- dev_err(ndev_dev(privdata), "%s pcie_amd_mp2_dev->ops is NULL %d\n", +- __func__, __LINE__); +- return IRQ_NONE; +- } +- +- schedule_delayed_work(&privdata->work, 0); +- +- dev_dbg(ndev_dev(privdata), "%s Exit\n", __func__); +- return IRQ_HANDLED; +-} +- +-static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, +- size_t count, loff_t *offp) +-{ +- struct amd_mp2_dev *privdata; +- void __iomem *mmio; +- u8 *buf; +- size_t buf_size; +- ssize_t ret, off; +- union { +- u64 v64; +- u32 v32; +- u16 v16; +- } u; +- +- privdata = filp->private_data; +- mmio = privdata->mmio; +- buf_size = min(count, 0x800ul); +- buf = kmalloc(buf_size, GFP_KERNEL); +- +- if (!buf) +- return -ENOMEM; +- +- off = 0; +- off += scnprintf(buf + off, buf_size - off, +- "Mp2 Device Information:\n"); +- +- off += scnprintf(buf + off, buf_size - off, +- "========================\n"); +- off += scnprintf(buf + off, buf_size - off, +- "\tMP2 C2P Message Register Dump:\n\n"); +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG0); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG0 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG1); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG1 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG2); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG2 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG3); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG3 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG4); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG4 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG5); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG5 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG6); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG6 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG7); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG7 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG8); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG8 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_C2P_MSG9); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_C2P_MSG9 -\t\t\t%#06x\n", u.v32); +- +- off += scnprintf(buf + off, buf_size - off, +- "\n\tMP2 P2C Message Register Dump:\n\n"); +- +- u.v32 = readl(privdata->mmio + AMD_P2C_MSG1); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_P2C_MSG1 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_P2C_MSG2); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_P2C_MSG2 -\t\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_P2C_MSG_INTEN); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_P2C_MSG_INTEN -\t\t%#06x\n", u.v32); +- +- u.v32 = readl(privdata->mmio + AMD_P2C_MSG_INTSTS); +- off += scnprintf(buf + off, buf_size - off, +- "AMD_P2C_MSG_INTSTS -\t\t%#06x\n", u.v32); +- +- ret = simple_read_from_buffer(ubuf, count, offp, buf, off); +- kfree(buf); +- return ret; +-} +- +-static void ndev_init_debugfs(struct amd_mp2_dev *privdata) +-{ +- if (!debugfs_dir) { +- privdata->debugfs_dir = NULL; +- privdata->debugfs_info = NULL; +- } else { +- privdata->debugfs_dir = debugfs_create_dir(ndev_name(privdata), +- debugfs_dir); +- if (!privdata->debugfs_dir) { +- privdata->debugfs_info = NULL; +- } else { +- privdata->debugfs_info = debugfs_create_file("info", 0400, +- privdata->debugfs_dir, privdata, &amd_mp2_debugfs_info); +- } +- } +-} +- +-static void ndev_deinit_debugfs(struct amd_mp2_dev *privdata) +-{ +- debugfs_remove_recursive(privdata->debugfs_dir); +-} +- +-static void clear_mp2_reg(struct amd_mp2_dev *privdata) +-{ +- int reg = 0; +- +- for (reg = AMD_C2P_MSG0; reg <= AMD_C2P_MSG9; reg += 4) +- writel(0, privdata->mmio + reg); +- +- for (reg = AMD_P2C_MSG0; reg <= AMD_P2C_MSG2; reg += 4) +- writel(0, privdata->mmio + reg); +-} +- +-static int amd_mp2_pci_init(struct amd_mp2_dev *privdata, struct pci_dev *pdev) +-{ +- int rc; +- int bar_index = 2; +- resource_size_t size, base; +- +- pci_set_drvdata(pdev, privdata); +- +- rc = pci_enable_device(pdev); +- if (rc) +- goto err_pci_enable; +- +- rc = pci_request_regions(pdev, DRIVER_NAME); +- if (rc) +- goto err_pci_regions; +- +- pci_set_master(pdev); +- +- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); +- if (rc) { +- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); +- if (rc) +- goto err_dma_mask; +- dev_warn(ndev_dev(privdata), "Cannot DMA highmem\n"); +- } +- +- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); +- if (rc) { +- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); +- if (rc) +- goto err_dma_mask; +- dev_warn(ndev_dev(privdata), "Cannot DMA consistent highmem\n"); +- } +- +- base = pci_resource_start(pdev, bar_index); +- size = pci_resource_len(pdev, bar_index); +- dev_dbg(ndev_dev(privdata), "Base addr:%llx size:%llx\n", base, size); +- +- privdata->mmio = ioremap(base, size); +- if (!privdata->mmio) { +- rc = -EIO; +- goto err_dma_mask; +- } +- +- /* Try to set up intx irq */ +- pci_intx(pdev, 1); +- +- rc = request_irq(pdev->irq, amd_mp2_irq_isr, IRQF_SHARED, "mp2_irq_isr", +- privdata); +- if (rc) +- goto err_intx_request; +- +- return 0; +- +-err_intx_request: +- return rc; +-err_dma_mask: +- pci_clear_master(pdev); +- pci_release_regions(pdev); +-err_pci_regions: +- pci_disable_device(pdev); +-err_pci_enable: +- pci_set_drvdata(pdev, NULL); +- return rc; +-} +- +-static void amd_mp2_pci_deinit(struct amd_mp2_dev *privdata) +-{ +- struct pci_dev *pdev = ndev_pdev(privdata); +- +- pci_iounmap(pdev, privdata->mmio); +- +- pci_clear_master(pdev); +- pci_release_regions(pdev); +- pci_disable_device(pdev); +- pci_set_drvdata(pdev, NULL); +-} +- +-static int amd_mp2_pci_probe(struct pci_dev *pdev, +- const struct pci_device_id *id) +-{ +- struct amd_mp2_dev *privdata; +- int rc; +- +- dev_info(&pdev->dev, "MP2 device found [%04x:%04x] (rev %x)\n", +- (int)pdev->vendor, (int)pdev->device, (int)pdev->revision); +- +- privdata = kzalloc(sizeof(*privdata), GFP_KERNEL); +- privdata->pdev = pdev; +- +- if (!privdata) { +- rc = -ENOMEM; +- goto err_dev; +- } +- +- rc = amd_mp2_pci_init(privdata, pdev); +- if (rc) +- goto err_pci_init; +- dev_dbg(&pdev->dev, "pci init done.\n"); +- +- INIT_DELAYED_WORK(&privdata->work, amd_mp2_pci_work); +- +- ndev_init_debugfs(privdata); +- dev_info(&pdev->dev, "MP2 device registered.\n"); +- return 0; +- +- /*TODO: Review error handling later*/ +-err_pci_init: +- kfree(privdata); +-err_dev: +- dev_err(&pdev->dev, "Memory Allocation Failed\n"); +- return rc; +-} +- +-static void amd_mp2_pci_remove(struct pci_dev *pdev) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(pdev); +- +- ndev_deinit_debugfs(privdata); +- clear_mp2_reg(privdata); +- cancel_delayed_work_sync(&privdata->work); +- free_irq(pdev->irq, privdata); +- pci_intx(pdev, 0); +- amd_mp2_pci_deinit(privdata); +- kfree(privdata); +-} +- +-static const struct file_operations amd_mp2_debugfs_info = { +- .owner = THIS_MODULE, +- .open = simple_open, +- .read = ndev_debugfs_read, +-}; +- +-static const struct pci_device_id amd_mp2_pci_tbl[] = { +- {PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MP2)}, +- {0} +-}; +-MODULE_DEVICE_TABLE(pci, amd_mp2_pci_tbl); +- +-#ifdef CONFIG_PM_SLEEP +-static int amd_mp2_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(pdev); +- +- dev_err(&pdev->dev, "Enter\n"); +- if (!privdata) { +- dev_err(&pdev->dev, "privdata null\n"); +- return -EINVAL; +- } +- +- dev_err(&pdev->dev, "Exit\n"); +- return 0; +-} +- +-static int amd_mp2_pci_device_resume(struct pci_dev *pdev) +-{ +- struct amd_mp2_dev *privdata = pci_get_drvdata(pdev); +- +- dev_err(&pdev->dev, "Enter\n"); +- if (!privdata) { +- dev_err(&pdev->dev, "privdata null\n"); +- return -EINVAL; +- } +- +- dev_err(&pdev->dev, "Exit\n"); +- return 0; +-} +-#endif +- +-static struct pci_driver amd_mp2_pci_driver = { +- .name = DRIVER_NAME, +- .id_table = amd_mp2_pci_tbl, +- .probe = amd_mp2_pci_probe, +- .remove = amd_mp2_pci_remove, +-#ifdef CONFIG_PM_SLEEP +- .suspend = amd_mp2_pci_device_suspend, +- .resume = amd_mp2_pci_device_resume, +-#endif +-}; +- +-static int __init amd_mp2_pci_driver_init(void) +-{ +- pr_info("%s: %s Version: %s\n", DRIVER_NAME, DRIVER_DESC, DRIVER_VER); +- +- if (debugfs_initialized()) +- debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL); +- +- return pci_register_driver(&amd_mp2_pci_driver); +-} +-module_init(amd_mp2_pci_driver_init); +- +-static void __exit amd_mp2_pci_driver_exit(void) +-{ +- pci_unregister_driver(&amd_mp2_pci_driver); +- debugfs_remove_recursive(debugfs_dir); +-} +-module_exit(amd_mp2_pci_driver_exit); +diff --git a/drivers/i2c/busses/pcie_mp2_amd.h b/drivers/i2c/busses/pcie_mp2_amd.h +deleted file mode 100755 +index e6c945c..0000000 +--- a/drivers/i2c/busses/pcie_mp2_amd.h ++++ /dev/null +@@ -1,249 +0,0 @@ +-/* +- * This file is provided under a dual BSD/GPLv2 license. When using or +- * redistributing this file, you may do so under either license. +- * +- * GPL LICENSE SUMMARY +- * +- * Copyright (C) 2017 Advanced Micro Devices, Inc. All Rights Reserved. +- * +- * This program is free software; you can redistribute it and/or modify +- * it under the terms of version 2 of the GNU General Public License as +- * published by the Free Software Foundation. +- * +- * BSD LICENSE +- * +- * Copyright (C) 2017 Advanced Micro Devices, Inc. All Rights Reserved. +- * +- * Redistribution and use in source and binary forms, with or without +- * modification, are permitted provided that the following conditions +- * are met: +- * +- * * Redistributions of source code must retain the above copyright +- * notice, this list of conditions and the following disclaimer. +- * * Redistributions in binary form must reproduce the above copy +- * notice, this list of conditions and the following disclaimer in +- * the documentation and/or other materials provided with the +- * distribution. +- * * Neither the name of AMD Corporation nor the names of its +- * contributors may be used to endorse or promote products derived +- * from this software without specific prior written permission. +- * +- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +- * OWNER 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. +- * +- * AMD PCIe MP2 Communication Client Driver +- * Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> +- */ +- +-#ifndef PCIE_MP2_AMD_H +-#define PCIE_MP2_AMD_H +- +-#include <linux/pci.h> +- +-#define PCI_DEVICE_ID_AMD_MP2 0x15E6 +- +-#define write64 _write64 +-static inline void _write64(u64 val, void __iomem *mmio) +-{ +- writel(val, mmio); +- writel(val >> 32, mmio + sizeof(u32)); +-} +- +-#define read64 _read64 +-static inline u64 _read64(void __iomem *mmio) +-{ +- u64 low, high; +- +- low = readl(mmio); +- high = readl(mmio + sizeof(u32)); +- return low | (high << 32); +-} +- +-enum { +- /* MP2 C2P Message Registers */ +- AMD_C2P_MSG0 = 0x10500, /*MP2 Message for I2C0*/ +- AMD_C2P_MSG1 = 0x10504, /*MP2 Message for I2C1*/ +- AMD_C2P_MSG2 = 0x10508, /*DRAM Address Lo / Data 0*/ +- AMD_C2P_MSG3 = 0x1050c, /*DRAM Address HI / Data 1*/ +- AMD_C2P_MSG4 = 0x10510, /*Data 2*/ +- AMD_C2P_MSG5 = 0x10514, /*Data 3*/ +- AMD_C2P_MSG6 = 0x10518, /*Data 4*/ +- AMD_C2P_MSG7 = 0x1051c, /*Data 5*/ +- AMD_C2P_MSG8 = 0x10520, /*Data 6*/ +- AMD_C2P_MSG9 = 0x10524, /*Data 7*/ +- +- /* MP2 P2C Message Registers */ +- AMD_P2C_MSG0 = 0x10680, /*Do not use*/ +- AMD_P2C_MSG1 = 0x10684, /*I2c0 int reg*/ +- AMD_P2C_MSG2 = 0x10688, /*I2c1 int reg*/ +- AMD_P2C_MSG3 = 0x1068C, /*MP2 debug info*/ +- AMD_P2C_MSG_INTEN = 0x10690, /*MP2 int gen register*/ +- AMD_P2C_MSG_INTSTS = 0x10694, /*Interrupt sts*/ +-}; +- +-/* Command register data structures */ +- +-enum i2c_cmd { +- i2c_read, +- i2c_write, +- i2c_enable, +- i2c_disable, +- number_of_sensor_discovered, +- is_mp2_active, +- invalid_cmd = 0xF, +-}; +- +-enum i2c_bus_index { +- I2C_BUS_0 = 0, +- I2C_BUS_1 = 1, +- I2C_BUS_MAX +-}; +- +-enum speed_enum { +- speed100k = 0, +- speed400k = 1, +- speed1000k = 2, +- speed1400k = 3, +- speed3400k = 4 +-}; +- +-enum mem_type { +- use_dram = 0, +- use_c2pmsg = 1, +-}; +- +-union i2c_cmd_base { +- u32 ul; +- struct { +- enum i2c_cmd i2c_cmd : 4; /*!< bit: 0..3 i2c R/W command */ +- enum i2c_bus_index bus_id : 4; /*!< bit: 4..7 i2c bus index */ +- u32 dev_addr : 8; /*!< bit: 8..15 device address or Bus Speed*/ +- u32 length : 12; /*!< bit: 16..29 read/write length */ +- enum speed_enum i2c_speed : 3; /*!< bit: 30 register address*/ +- enum mem_type mem_type : 1; /*!< bit: 15 mem type*/ +- } s; /*!< Structure used for bit access */ +-}; +- +-/* Response register data structures */ +- +-/*Response - Response of SFI*/ +-enum response_type { +- invalid_response = 0, +- command_success = 1, +- command_failed = 2, +-}; +- +-/*Status - Command ID to indicate a command*/ +-enum status_type { +- i2c_readcomplete_event = 0, +- i2c_readfail_event = 1, +- i2c_writecomplete_event = 2, +- i2c_writefail_event = 3, +- i2c_busenable_complete = 4, +- i2c_busenable_failed = 5, +- i2c_busdisable_complete = 6, +- i2c_busdisable_failed = 7, +- invalid_data_length = 8, +- invalid_slave_address = 9, +- invalid_i2cbus_id = 10, +- invalid_dram_addr = 11, +- invalid_command = 12, +- mp2_active = 13, +- numberof_sensors_discovered_resp = 14, +- i2C_bus_notinitialized +-}; +- +-union i2c_event_base { +- u32 ul; +- struct { +- enum response_type response : 2; /*!< bit: 0..1 I2C res type */ +- enum status_type status : 5; /*!< bit: 2..6 status_type */ +- enum mem_type mem_type : 1; /*!< bit: 7 0-DRAM;1- C2PMsg o/p */ +- enum i2c_bus_index i2c_bus_id : 4; /*!< bit: 8..11 I2C Bus ID */ +- u32 length : 12; /*!< bit:16..29 length */ +- u32 slave_addr : 8; /*!< bit: 15 debug msg include in p2c msg */ +- } r; /*!< Structure used for bit access */ +- u32 *buf; +-}; +- +-/* data structures for communication with I2c*/ +- +-struct i2c_connect_config { +- enum i2c_bus_index i2c_bus_id; +- u64 connection_speed; +- u16 dev_addr; +-}; +- +-struct i2c_write_config { +- enum i2c_bus_index i2c_bus_id; +- u64 connection_speed; +- u16 dev_addr; +- u32 length; +- phys_addr_t phy_addr; +- u32 *buf; +-}; +- +-struct i2c_read_config { +- enum i2c_bus_index i2c_bus_id; +- u64 connection_speed; +- u16 dev_addr; +- u32 length; +- phys_addr_t phy_addr; +- u8 *buf; +-}; +- +-// struct to send/receive data b/w pci and i2c drivers +-struct amd_i2c_pci_ops { +- int (*read_complete)(union i2c_event_base event, void *dev_ctx); +- int (*write_complete)(union i2c_event_base event, void *dev_ctx); +- int (*connect_complete)(union i2c_event_base event, void *dev_ctx); +-}; +- +-struct amd_i2c_dev { +- struct i2c_connect_config i2c_connect_config; +- struct i2c_read_config i2c_read_config; +- struct i2c_write_config i2c_write_config; +- const struct amd_i2c_pci_ops *ops; +- struct pci_dev *pdev; +-}; +- +-struct amd_mp2_dev { +- struct pci_dev *pdev; +- struct dentry *debugfs_dir; +- struct dentry *debugfs_info; +- void __iomem *mmio; +- union i2c_event_base eventval; +- enum i2c_cmd reqcmd; +-/* TODO: read/write config should be array of 2 for supporting i2c0/1*/ +- struct i2c_connect_config i2c_connect_config; +- struct i2c_read_config i2c_read_config; +- struct i2c_write_config i2c_write_config; +- union i2c_cmd_base i2c_cmd_base; +- const struct amd_i2c_pci_ops *ops; +- struct delayed_work work; +- void *ctx; +-}; +- +-int amd_i2c_read(struct pci_dev *pdev, struct i2c_read_config i2c_read_config); +-int amd_i2c_write(struct pci_dev *pdev, +- struct i2c_write_config i2c_write_config); +-int amd_i2c_connect(struct pci_dev *pdev, +- struct i2c_connect_config i2c_connect_config); +-int amd_i2c_register_cb(struct pci_dev *pdev, const struct amd_i2c_pci_ops *ops, +- void *dev_ctx); +- +-#define ndev_pdev(ndev) ((ndev)->pdev) +-#define ndev_name(ndev) pci_name(ndev_pdev(ndev)) +-#define ndev_dev(ndev) (&ndev_pdev(ndev)->dev) +-#define mp2_dev(__work) container_of(__work, struct amd_mp2_dev, work.work) +- +-#endif +-- +2.7.4 + |