From patchwork Tue Mar 23 16:12:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Min Li X-Patchwork-Id: 408396 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19C6DC433DB for ; Tue, 23 Mar 2021 16:13:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D16F261581 for ; Tue, 23 Mar 2021 16:13:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232860AbhCWQNX (ORCPT ); Tue, 23 Mar 2021 12:13:23 -0400 Received: from pbmsgap01.intersil.com ([192.157.179.201]:47448 "EHLO pbmsgap01.intersil.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232975AbhCWQNO (ORCPT ); Tue, 23 Mar 2021 12:13:14 -0400 Received: from pps.filterd (pbmsgap01.intersil.com [127.0.0.1]) by pbmsgap01.intersil.com (8.16.0.42/8.16.0.42) with SMTP id 12NG49md007878; Tue, 23 Mar 2021 12:13:08 -0400 Received: from pbmxdp03.intersil.corp (pbmxdp03.pb.intersil.com [132.158.200.224]) by pbmsgap01.intersil.com with ESMTP id 37f12krahy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 23 Mar 2021 12:13:06 -0400 Received: from pbmxdp01.intersil.corp (132.158.200.222) by pbmxdp03.intersil.corp (132.158.200.224) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.2176.2; Tue, 23 Mar 2021 12:13:04 -0400 Received: from localhost (132.158.202.108) by pbmxdp01.intersil.corp (132.158.200.222) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Tue, 23 Mar 2021 12:13:04 -0400 From: To: , , , CC: , , Min Li Subject: [PATCH next 1/2] mfd: Add Renesas Synchronization Management Unit (SMU) support Date: Tue, 23 Mar 2021 12:12:08 -0400 Message-ID: <1616515928-5768-1-git-send-email-min.li.xe@renesas.com> X-Mailer: git-send-email 2.7.4 X-TM-AS-MML: disable MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 2KdeDs7xazlx8ooyBMg8IX4lNSLANzVM X-Proofpoint-GUID: 2KdeDs7xazlx8ooyBMg8IX4lNSLANzVM X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-03-23_07:2021-03-22,2021-03-23 signatures=0 X-Proofpoint-Spam-Details: rule=junk_notspam policy=junk score=0 phishscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 suspectscore=0 bulkscore=0 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2103200000 definitions=main-2103230117 X-Proofpoint-Spam-Reason: mlx Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Min Li Add support for ClockMatrix(TM) and 82P33xxx families of timing and synchronization devices. The access interface can be either SPI or I2C. Currently, it will create 2 types of MFD devices, which are to be used by the corresponding rsmu character device driver and the PTP hardware clock driver, respectively. Signed-off-by: Min Li --- drivers/mfd/Kconfig | 27 ++ drivers/mfd/Makefile | 3 + drivers/mfd/rsmu_i2c.c | 344 +++++++++++++++++ drivers/mfd/rsmu_private.h | 32 ++ drivers/mfd/rsmu_spi.c | 371 ++++++++++++++++++ include/linux/mfd/idt82p33_reg.h | 116 ++++++ include/linux/mfd/idt8a340_reg.h | 817 +++++++++++++++++++++++++++++++++++++++ include/linux/mfd/rsmu.h | 42 ++ 8 files changed, 1752 insertions(+) create mode 100644 drivers/mfd/rsmu_i2c.c create mode 100644 drivers/mfd/rsmu_private.h create mode 100644 drivers/mfd/rsmu_spi.c create mode 100644 include/linux/mfd/idt82p33_reg.h create mode 100644 include/linux/mfd/idt8a340_reg.h create mode 100644 include/linux/mfd/rsmu.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 21a131d..ab5e13c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2172,5 +2172,32 @@ config MFD_INTEL_M10_BMC additional drivers must be enabled in order to use the functionality of the device. +config MFD_RSMU_I2C + tristate "Renesas Synchronization Management Unit with I2C" + depends on I2C && OF + depends on MFD_RSMU_SPI=n + select MFD_CORE + help + Support for the Renesas synchronization management unit, such as + Clockmatrix and 82P33XXX series. This option supports I2C as + the control interface. + + This driver provides common support for accessing the device, + additional drivers must be enabled in order to use the functionality + of the device. + +config MFD_RSMU_SPI + tristate "Renesas Synchronization Management Unit with SPI" + depends on SPI && OF + select MFD_CORE + help + Support for the Renesas synchronization management unit, such as + Clockmatrix and 82P33XXX series. This option supports SPI as + the control interface. + + This driver provides common support for accessing the device, + additional drivers must be enabled in order to use the functionality + of the device. + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 4f6d2b8..4ab32ef 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -271,3 +271,6 @@ obj-$(CONFIG_MFD_INTEL_M10_BMC) += intel-m10-bmc.o obj-$(CONFIG_MFD_ATC260X) += atc260x-core.o obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o + +obj-$(CONFIG_MFD_RSMU_I2C) += rsmu_i2c.o +obj-$(CONFIG_MFD_RSMU_SPI) += rsmu_spi.o diff --git a/drivers/mfd/rsmu_i2c.c b/drivers/mfd/rsmu_i2c.c new file mode 100644 index 0000000..06f582b --- /dev/null +++ b/drivers/mfd/rsmu_i2c.c @@ -0,0 +1,344 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Multi-function driver for the IDT ClockMatrix(TM) and 82P33xxx families of + * timing and synchronization devices. + * + * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "rsmu_private.h" + +/* + * 16-bit register address: the lower 8 bits of the register address come + * from the offset addr byte and the upper 8 bits come from the page register. + */ +#define RSMU_CM_PAGE_ADDR 0xFD +#define RSMU_CM_PAGE_WINDOW 256 + +/* + * 15-bit register address: the lower 7 bits of the register address come + * from the offset addr byte and the upper 8 bits come from the page register. + */ +#define RSMU_SABRE_PAGE_ADDR 0x7F +#define RSMU_SABRE_PAGE_WINDOW 128 + +static bool rsmu_cm_volatile_reg(struct device *dev, unsigned int reg); +static bool rsmu_sabre_volatile_reg(struct device *dev, unsigned int reg); + +/* Current mfd device index */ +static atomic_t rsmu_ndevs = ATOMIC_INIT(0); + +/* Platform data */ +static struct rsmu_pdata rsmu_pdata[RSMU_MAX_MFD_DEV]; + +/* clockmatrix phc devices */ +static struct mfd_cell rsmu_cm_pdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "idtcm-ptp0", + .of_compatible = "renesas,idtcm-ptp0", + }, + [1] = { + .name = "idtcm-ptp1", + .of_compatible = "renesas,idtcm-ptp1", + }, + [2] = { + .name = "idtcm-ptp2", + .of_compatible = "renesas,idtcm-ptp2", + }, + [3] = { + .name = "idtcm-ptp3", + .of_compatible = "renesas,idtcm-ptp3", + }, +}; + +/* sabre phc devices */ +static struct mfd_cell rsmu_sabre_pdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "idt82p33-ptp0", + .of_compatible = "renesas,idt82p33-ptp0", + }, + [1] = { + .name = "idt82p33-ptp1", + .of_compatible = "renesas,idt82p33-ptp1", + }, + [2] = { + .name = "idt82p33-ptp2", + .of_compatible = "renesas,idt82p33-ptp2", + }, + [3] = { + .name = "idt82p33-ptp3", + .of_compatible = "renesas,idt82p33-ptp3", + }, +}; + +/* rsmu character devices */ +static struct mfd_cell rsmu_cdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "rsmu-cdev0", + .of_compatible = "renesas,rsmu-cdev0", + }, + [1] = { + .name = "rsmu-cdev1", + .of_compatible = "renesas,rsmu-cdev1", + }, + [2] = { + .name = "rsmu-cdev2", + .of_compatible = "renesas,rsmu-cdev2", + }, + [3] = { + .name = "rsmu-cdev3", + .of_compatible = "renesas,rsmu-cdev3", + }, +}; + +static const struct regmap_range_cfg rsmu_cm_range_cfg[] = { + { + .range_min = 0, + .range_max = 0xD000, + .selector_reg = RSMU_CM_PAGE_ADDR, + .selector_mask = 0xFF, + .selector_shift = 0, + .window_start = 0, + .window_len = RSMU_CM_PAGE_WINDOW, + } +}; + +static const struct regmap_range_cfg rsmu_sabre_range_cfg[] = { + { + .range_min = 0, + .range_max = 0x400, + .selector_reg = RSMU_SABRE_PAGE_ADDR, + .selector_mask = 0xFF, + .selector_shift = 0, + .window_start = 0, + .window_len = RSMU_SABRE_PAGE_WINDOW, + } +}; + +static const struct regmap_config rsmu_regmap_configs[] = { + [RSMU_CM] = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xD000, + .ranges = rsmu_cm_range_cfg, + .num_ranges = ARRAY_SIZE(rsmu_cm_range_cfg), + .volatile_reg = rsmu_cm_volatile_reg, + .cache_type = REGCACHE_RBTREE, + .can_multi_write = true, + }, + [RSMU_SABRE] = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x400, + .ranges = rsmu_sabre_range_cfg, + .num_ranges = ARRAY_SIZE(rsmu_sabre_range_cfg), + .volatile_reg = rsmu_sabre_volatile_reg, + .cache_type = REGCACHE_RBTREE, + .can_multi_write = true, + }, +}; + +static bool rsmu_cm_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RSMU_CM_PAGE_ADDR: + return false; + default: + return true; + } +} + +static bool rsmu_sabre_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RSMU_SABRE_PAGE_ADDR: + return false; + default: + return true; + } +} + +int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size) +{ + struct rsmu_dev *rsmu = dev_get_drvdata(dev); + + return regmap_bulk_read(rsmu->regmap, reg, buf, size); +} +EXPORT_SYMBOL_GPL(rsmu_read); + +int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size) +{ + struct rsmu_dev *rsmu = dev_get_drvdata(dev); + + return regmap_bulk_write(rsmu->regmap, reg, buf, size); +} +EXPORT_SYMBOL_GPL(rsmu_write); + +static int rsmu_mfd_init(struct rsmu_dev *rsmu, struct mfd_cell *mfd, + struct rsmu_pdata *pdata) +{ + int ret; + + mfd->platform_data = pdata; + mfd->pdata_size = sizeof(struct rsmu_pdata); + + ret = mfd_add_devices(rsmu->dev, -1, mfd, 1, NULL, 0, NULL); + if (ret < 0) { + dev_err(rsmu->dev, "mfd_add_devices failed with %s\n", + mfd->name); + return ret; + } + + return ret; +} + +static int rsmu_dev_init(struct rsmu_dev *rsmu) +{ + struct rsmu_pdata *pdata; + struct mfd_cell *pmfd; + struct mfd_cell *cmfd; + int ret; + + /* Initialize regmap */ + rsmu->regmap = devm_regmap_init_i2c(rsmu->client, + &rsmu_regmap_configs[rsmu->type]); + if (IS_ERR(rsmu->regmap)) { + ret = PTR_ERR(rsmu->regmap); + dev_err(rsmu->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + /* Initialize device index */ + rsmu->index = atomic_read(&rsmu_ndevs); + if (rsmu->index >= RSMU_MAX_MFD_DEV) + return -ENODEV; + + /* Initialize platform data */ + pdata = &rsmu_pdata[rsmu->index]; + pdata->lock = &rsmu->lock; + pdata->type = rsmu->type; + pdata->index = rsmu->index; + + /* Initialize MFD devices */ + cmfd = &rsmu_cdev[rsmu->index]; + if (rsmu->type == RSMU_CM) + pmfd = &rsmu_cm_pdev[rsmu->index]; + else if (rsmu->type == RSMU_SABRE) + pmfd = &rsmu_sabre_pdev[rsmu->index]; + else + return -EINVAL; + + ret = rsmu_mfd_init(rsmu, pmfd, pdata); + if (ret) + return ret; + + return rsmu_mfd_init(rsmu, cmfd, pdata); +} + +static int rsmu_dt_init(struct rsmu_dev *rsmu) +{ + struct device_node *np = rsmu->dev->of_node; + + rsmu->type = RSMU_NONE; + if (of_device_is_compatible(np, "idt,8a34000")) { + rsmu->type = RSMU_CM; + } else if (of_device_is_compatible(np, "idt,82p33810")) { + rsmu->type = RSMU_SABRE; + } else { + dev_err(rsmu->dev, "unknown RSMU device\n"); + return -EINVAL; + } + + return 0; +} + +static int rsmu_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct rsmu_dev *rsmu; + int ret; + + rsmu = devm_kzalloc(&client->dev, sizeof(struct rsmu_dev), + GFP_KERNEL); + if (rsmu == NULL) + return -ENOMEM; + + i2c_set_clientdata(client, rsmu); + mutex_init(&rsmu->lock); + rsmu->dev = &client->dev; + rsmu->client = client; + + ret = rsmu_dt_init(rsmu); + if (ret) + return ret; + + mutex_lock(&rsmu->lock); + + ret = rsmu_dev_init(rsmu); + if (ret == 0) + atomic_inc(&rsmu_ndevs); + + mutex_unlock(&rsmu->lock); + + return ret; +} + +static int rsmu_remove(struct i2c_client *client) +{ + struct rsmu_dev *rsmu = i2c_get_clientdata(client); + + mfd_remove_devices(&client->dev); + mutex_destroy(&rsmu->lock); + atomic_dec(&rsmu_ndevs); + + return 0; +} + +static const struct i2c_device_id rsmu_id[] = { + { "8a34000", 0 }, + { "82p33810", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rsmu_id); + +static const struct of_device_id rsmu_of_match[] = { + {.compatible = "idt,8a34000", }, + {.compatible = "idt,82p33810", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rsmu_of_match); + +static struct i2c_driver rsmu_driver = { + .driver = { + .name = "rsmu-i2c", + .of_match_table = of_match_ptr(rsmu_of_match), + }, + .probe = rsmu_probe, + .remove = rsmu_remove, + .id_table = rsmu_id, +}; + +static int __init rsmu_init(void) +{ + return i2c_add_driver(&rsmu_driver); +} +/* init early so consumer devices can complete system boot */ +subsys_initcall(rsmu_init); + +static void __exit rsmu_exit(void) +{ + i2c_del_driver(&rsmu_driver); +} +module_exit(rsmu_exit); + +MODULE_DESCRIPTION("Renesas SMU I2C multi-function driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/rsmu_private.h b/drivers/mfd/rsmu_private.h new file mode 100644 index 0000000..8841a24 --- /dev/null +++ b/drivers/mfd/rsmu_private.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Multi-function driver for the IDT ClockMatrix(TM) and 82p33xxx families of + * timing and synchronization devices. + * + * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company. + */ + +#ifndef __RSMU_MFD_PRIVATE_H +#define __RSMU_MFD_PRIVATE_H + +#include + +/* Maximum number of mfd devices */ +#define RSMU_MAX_MFD_DEV 4 + +struct rsmu_dev { + struct device *dev; + void *client; + struct regmap *regmap; + struct mutex lock; + enum rsmu_type type; + u8 index; + u16 page; +}; + +enum rsmu_mfd_type { + RSMU_MFD_PTP = 0, + RSMU_MFD_CDEV = 1, + RSMU_MFD_NUM = 2, +}; +#endif /* __LINUX_MFD_RSMU_H */ diff --git a/drivers/mfd/rsmu_spi.c b/drivers/mfd/rsmu_spi.c new file mode 100644 index 0000000..25a471a --- /dev/null +++ b/drivers/mfd/rsmu_spi.c @@ -0,0 +1,371 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Multi-function driver for the IDT ClockMatrix(TM) and 82P33xxx families of + * timing and synchronization devices. + * + * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "rsmu_private.h" + +/* + * 16-bit register address: the lower 7 bits of the register address come + * from the offset addr byte and the upper 9 bits come from the page register. + */ +#define RSMU_CM_PAGE_ADDR 0x7C +#define RSMU_SABRE_PAGE_ADDR 0x7F +#define RSMU_HIGHER_ADDR_MASK 0xFF80 +#define RSMU_HIGHER_ADDR_SHIFT 7 +#define RSMU_LOWER_ADDR_MASK 0x7F + +/* Current mfd device index */ +static atomic_t rsmu_ndevs = ATOMIC_INIT(0); + +/* Platform data */ +static struct rsmu_pdata rsmu_pdata[RSMU_MAX_MFD_DEV]; + +/* clockmatrix phc devices */ +static struct mfd_cell rsmu_cm_pdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "idtcm-ptp0", + .of_compatible = "renesas,idtcm-ptp0", + }, + [1] = { + .name = "idtcm-ptp1", + .of_compatible = "renesas,idtcm-ptp1", + }, + [2] = { + .name = "idtcm-ptp2", + .of_compatible = "renesas,idtcm-ptp2", + }, + [3] = { + .name = "idtcm-ptp3", + .of_compatible = "renesas,idtcm-ptp3", + }, +}; + +/* sabre phc devices */ +static struct mfd_cell rsmu_sabre_pdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "idt82p33-ptp0", + .of_compatible = "renesas,idt82p33-ptp0", + }, + [1] = { + .name = "idt82p33-ptp1", + .of_compatible = "renesas,idt82p33-ptp1", + }, + [2] = { + .name = "idt82p33-ptp2", + .of_compatible = "renesas,idt82p33-ptp2", + }, + [3] = { + .name = "idt82p33-ptp3", + .of_compatible = "renesas,idt82p33-ptp3", + }, +}; + +/* rsmu character devices */ +static struct mfd_cell rsmu_cdev[RSMU_MAX_MFD_DEV] = { + [0] = { + .name = "rsmu-cdev0", + .of_compatible = "renesas,rsmu-cdev0", + }, + [1] = { + .name = "rsmu-cdev1", + .of_compatible = "renesas,rsmu-cdev1", + }, + [2] = { + .name = "rsmu-cdev2", + .of_compatible = "renesas,rsmu-cdev2", + }, + [3] = { + .name = "rsmu-cdev3", + .of_compatible = "renesas,rsmu-cdev3", + }, +}; + +static int rsmu_read_device(struct rsmu_dev *rsmu, u8 reg, u8 *buf, u16 bytes) +{ + struct spi_device *client = rsmu->client; + struct spi_transfer xfer = {0}; + struct spi_message msg; + u8 cmd[256] = {0}; + u8 rsp[256] = {0}; + int ret; + + cmd[0] = reg | 0x80; + xfer.rx_buf = rsp; + xfer.len = bytes + 1; + xfer.tx_buf = cmd; + xfer.bits_per_word = client->bits_per_word; + xfer.speed_hz = client->max_speed_hz; + + spi_message_init(&msg); + spi_message_add_tail(&xfer, &msg); + + ret = spi_sync(client, &msg); + if (ret >= 0) + memcpy(buf, &rsp[1], xfer.len-1); + + return ret; +} + +static int rsmu_write_device(struct rsmu_dev *rsmu, u8 reg, u8 *buf, u16 bytes) +{ + struct spi_device *client = rsmu->client; + struct spi_transfer xfer = {0}; + struct spi_message msg; + u8 cmd[256] = {0}; + int ret = -1; + + cmd[0] = reg; + memcpy(&cmd[1], buf, bytes); + + xfer.len = bytes + 1; + xfer.tx_buf = cmd; + xfer.bits_per_word = client->bits_per_word; + xfer.speed_hz = client->max_speed_hz; + spi_message_init(&msg); + spi_message_add_tail(&xfer, &msg); + + ret = spi_sync(client, &msg); + return ret; +} + +static int rsmu_write_page_register(struct rsmu_dev *rsmu, u16 reg) +{ + u8 buf[2]; + u16 bytes; + u16 page; + u8 preg; + int err; + + switch (rsmu->type) { + case RSMU_CM: + preg = RSMU_CM_PAGE_ADDR; + page = reg & RSMU_HIGHER_ADDR_MASK; + buf[0] = (u8)(page & 0xff); + buf[1] = (u8)((page >> 8) & 0xff); + bytes = 2; + break; + case RSMU_SABRE: + preg = RSMU_SABRE_PAGE_ADDR; + page = reg >> RSMU_HIGHER_ADDR_SHIFT; + buf[0] = (u8)(page & 0xff); + bytes = 1; + break; + default: + return -EINVAL; + } + + if (rsmu->page == page) + return 0; + + err = rsmu_write_device(rsmu, preg, buf, bytes); + + if (err) { + rsmu->page = 0xffff; + dev_err(rsmu->dev, + "failed to set page offset 0x%x\n", page); + } else { + rsmu->page = page; + } + + return err; +} + +int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size) +{ + struct rsmu_dev *rsmu = dev_get_drvdata(dev); + u8 addr = (u8)(reg & RSMU_LOWER_ADDR_MASK); + int err; + + err = rsmu_write_page_register(rsmu, reg); + if (err) + return err; + + err = rsmu_read_device(rsmu, addr, buf, size); + if (err) + dev_err(rsmu->dev, + "failed to read offset address 0x%x\n", addr); + + return err; +} +EXPORT_SYMBOL_GPL(rsmu_read); + +int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size) +{ + struct rsmu_dev *rsmu = dev_get_drvdata(dev); + u8 addr = (u8)(reg & RSMU_LOWER_ADDR_MASK); + int err; + + err = rsmu_write_page_register(rsmu, reg); + if (err) + return err; + + err = rsmu_write_device(rsmu, addr, buf, size); + if (err) + dev_err(rsmu->dev, + "failed to write offset address 0x%x\n", addr); + + return err; +} +EXPORT_SYMBOL_GPL(rsmu_write); + +static int rsmu_mfd_init(struct rsmu_dev *rsmu, struct mfd_cell *mfd, + struct rsmu_pdata *pdata) +{ + int ret; + + mfd->platform_data = pdata; + mfd->pdata_size = sizeof(struct rsmu_pdata); + + ret = mfd_add_devices(rsmu->dev, -1, mfd, 1, NULL, 0, NULL); + if (ret < 0) { + dev_err(rsmu->dev, "mfd_add_devices failed with %s\n", + mfd->name); + return ret; + } + + return ret; +} + +static int rsmu_dev_init(struct rsmu_dev *rsmu) +{ + struct rsmu_pdata *pdata; + struct mfd_cell *pmfd; + struct mfd_cell *cmfd; + int ret; + + /* Initialize device index */ + rsmu->index = atomic_read(&rsmu_ndevs); + if (rsmu->index >= RSMU_MAX_MFD_DEV) + return -ENODEV; + + /* Initialize platform data */ + pdata = &rsmu_pdata[rsmu->index]; + pdata->lock = &rsmu->lock; + pdata->type = rsmu->type; + pdata->index = rsmu->index; + + /* Initialize MFD devices */ + cmfd = &rsmu_cdev[rsmu->index]; + if (rsmu->type == RSMU_CM) + pmfd = &rsmu_cm_pdev[rsmu->index]; + else if (rsmu->type == RSMU_SABRE) + pmfd = &rsmu_sabre_pdev[rsmu->index]; + else + return -EINVAL; + + ret = rsmu_mfd_init(rsmu, pmfd, pdata); + if (ret) + return ret; + + return rsmu_mfd_init(rsmu, cmfd, pdata); +} + +static int rsmu_dt_init(struct rsmu_dev *rsmu) +{ + struct device_node *np = rsmu->dev->of_node; + + rsmu->type = RSMU_NONE; + if (of_device_is_compatible(np, "idt,8a34000")) { + rsmu->type = RSMU_CM; + } else if (of_device_is_compatible(np, "idt,82p33810")) { + rsmu->type = RSMU_SABRE; + } else { + dev_err(rsmu->dev, "unknown RSMU device\n"); + return -EINVAL; + } + + return 0; +} + +static int rsmu_probe(struct spi_device *client) +{ + struct rsmu_dev *rsmu; + int ret; + + rsmu = devm_kzalloc(&client->dev, sizeof(struct rsmu_dev), GFP_KERNEL); + if (rsmu == NULL) + return -ENOMEM; + + spi_set_drvdata(client, rsmu); + mutex_init(&rsmu->lock); + rsmu->dev = &client->dev; + rsmu->client = client; + + ret = rsmu_dt_init(rsmu); + if (ret) + return ret; + + mutex_lock(&rsmu->lock); + + ret = rsmu_dev_init(rsmu); + if (ret == 0) + atomic_inc(&rsmu_ndevs); + + mutex_unlock(&rsmu->lock); + + return ret; +} + +static int rsmu_remove(struct spi_device *client) +{ + struct rsmu_dev *rsmu = spi_get_drvdata(client); + + mfd_remove_devices(&client->dev); + mutex_destroy(&rsmu->lock); + atomic_dec(&rsmu_ndevs); + + return 0; +} + +static const struct spi_device_id rsmu_id[] = { + { "8a34000", 0 }, + { "82p33810", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, rsmu_id); + +static const struct of_device_id rsmu_of_match[] = { + {.compatible = "idt,8a34000", }, + {.compatible = "idt,82p33810", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rsmu_of_match); + +static struct spi_driver rsmu_driver = { + .driver = { + .name = "rsmu-spi", + .of_match_table = of_match_ptr(rsmu_of_match), + }, + .probe = rsmu_probe, + .remove = rsmu_remove, + .id_table = rsmu_id, +}; + +static int __init rsmu_init(void) +{ + return spi_register_driver(&rsmu_driver); +} +/* init early so consumer devices can complete system boot */ +subsys_initcall(rsmu_init); + +static void __exit rsmu_exit(void) +{ + spi_unregister_driver(&rsmu_driver); +} +module_exit(rsmu_exit); + +MODULE_DESCRIPTION("Renesas SMU SPI multi-function driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/idt82p33_reg.h b/include/linux/mfd/idt82p33_reg.h new file mode 100644 index 0000000..50872b0 --- /dev/null +++ b/include/linux/mfd/idt82p33_reg.h @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* idt82p33_reg.h + * + * Register Map - AN888_SMUforIEEE_SynchEther_82P33xxx_RevH.pdf + * + */ +#ifndef HAVE_IDT82P33_REG +#define HAVE_IDT82P33_REG + +/* Register address */ +#define REG_ADDR(page, offset) (((page) << 0x7) | ((offset) & 0x7f)) + +#define PAGE_ADDR 0x7F + +#define DPLL1_TOD_CNFG 0x134 +#define DPLL2_TOD_CNFG 0x1B4 + +#define DPLL1_TOD_STS 0x10B +#define DPLL2_TOD_STS 0x18B + +#define DPLL1_TOD_TRIGGER 0x115 +#define DPLL2_TOD_TRIGGER 0x195 + +#define DPLL1_OPERATING_MODE_CNFG 0x120 +#define DPLL2_OPERATING_MODE_CNFG 0x1A0 + +#define DPLL1_HOLDOVER_FREQ_CNFG 0x12C +#define DPLL2_HOLDOVER_FREQ_CNFG 0x1AC + +#define DPLL1_PHASE_OFFSET_CNFG 0x143 +#define DPLL2_PHASE_OFFSET_CNFG 0x1C3 + +#define DPLL1_SYNC_EDGE_CNFG 0x140 +#define DPLL2_SYNC_EDGE_CNFG 0x1C0 + +#define DPLL1_INPUT_MODE_CNFG 0x116 +#define DPLL2_INPUT_MODE_CNFG 0x196 + +#define DPLL1_OPERATING_STS 0x102 +#define DPLL2_OPERATING_STS 0x182 + +#define DPLL1_CURRENT_FREQ_STS 0x103 +#define DPLL2_CURRENT_FREQ_STS 0x183 + +#define REG_SOFT_RESET 0X381 + +#define OUT_MUX_CNFG(outn) REG_ADDR(0x6, (0xC * (outn))) + +/* Register bit definitions */ +#define SYNC_TOD BIT(1) +#define PH_OFFSET_EN BIT(7) +#define SQUELCH_ENABLE BIT(5) + +/* Bit definitions for the DPLL_MODE register */ +#define PLL_MODE_SHIFT (0) +#define PLL_MODE_MASK (0x1F) +#define COMBO_MODE_EN BIT(5) +#define COMBO_MODE_SHIFT (6) +#define COMBO_MODE_MASK (0x3) + +/* Bit definitions for DPLL_OPERATING_STS register */ +#define OPERATING_STS_MASK (0x7) +#define OPERATING_STS_SHIFT (0x0) + +/* Bit definitions for DPLL_TOD_TRIGGER register */ +#define READ_TRIGGER_MASK (0xF) +#define READ_TRIGGER_SHIFT (0x0) +#define WRITE_TRIGGER_MASK (0xF0) +#define WRITE_TRIGGER_SHIFT (0x4) + +/* Bit definitions for REG_SOFT_RESET register */ +#define SOFT_RESET_EN BIT(7) + +enum pll_mode { + PLL_MODE_MIN = 0, + PLL_MODE_AUTOMATIC = PLL_MODE_MIN, + PLL_MODE_FORCE_FREERUN = 1, + PLL_MODE_FORCE_HOLDOVER = 2, + PLL_MODE_FORCE_LOCKED = 4, + PLL_MODE_FORCE_PRE_LOCKED2 = 5, + PLL_MODE_FORCE_PRE_LOCKED = 6, + PLL_MODE_FORCE_LOST_PHASE = 7, + PLL_MODE_DCO = 10, + PLL_MODE_WPH = 18, + PLL_MODE_MAX = PLL_MODE_WPH, +}; + +enum hw_tod_trig_sel { + HW_TOD_TRIG_SEL_MIN = 0, + HW_TOD_TRIG_SEL_NO_WRITE = HW_TOD_TRIG_SEL_MIN, + HW_TOD_TRIG_SEL_NO_READ = HW_TOD_TRIG_SEL_MIN, + HW_TOD_TRIG_SEL_SYNC_SEL = 1, + HW_TOD_TRIG_SEL_IN12 = 2, + HW_TOD_TRIG_SEL_IN13 = 3, + HW_TOD_TRIG_SEL_IN14 = 4, + HW_TOD_TRIG_SEL_TOD_PPS = 5, + HW_TOD_TRIG_SEL_TIMER_INTERVAL = 6, + HW_TOD_TRIG_SEL_MSB_PHASE_OFFSET_CNFG = 7, + HW_TOD_TRIG_SEL_MSB_HOLDOVER_FREQ_CNFG = 8, + HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG = 9, + HW_TOD_RD_TRIG_SEL_LSB_TOD_STS = HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG, + WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG, +}; + +/** @brief Enumerated type listing DPLL operational modes */ +enum dpll_state { + DPLL_STATE_FREERUN = 1, + DPLL_STATE_HOLDOVER = 2, + DPLL_STATE_LOCKED = 4, + DPLL_STATE_PRELOCKED2 = 5, + DPLL_STATE_PRELOCKED = 6, + DPLL_STATE_LOSTPHASE = 7, + DPLL_STATE_MAX +}; + +#endif diff --git a/include/linux/mfd/idt8a340_reg.h b/include/linux/mfd/idt8a340_reg.h new file mode 100644 index 0000000..e8868cd --- /dev/null +++ b/include/linux/mfd/idt8a340_reg.h @@ -0,0 +1,817 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* idt8a340_reg.h + * + * Originally generated by regen.tcl on Thu Feb 14 19:23:44 PST 2019 + * https://github.com/richardcochran/regen + * + * Hand modified to include some HW registers. + * Based on 4.8.0, SCSR rev C commit a03c7ae5 + */ +#ifndef HAVE_IDT8A340_REG +#define HAVE_IDT8A340_REG + +#define PAGE_ADDR_BASE 0x0000 +#define PAGE_ADDR 0x00fc + +#define HW_REVISION 0x8180 +#define REV_ID 0x007a + +#define HW_DPLL_0 (0x8a00) +#define HW_DPLL_1 (0x8b00) +#define HW_DPLL_2 (0x8c00) +#define HW_DPLL_3 (0x8d00) +#define HW_DPLL_4 (0x8e00) +#define HW_DPLL_5 (0x8f00) +#define HW_DPLL_6 (0x9000) +#define HW_DPLL_7 (0x9100) + +#define HW_DPLL_TOD_SW_TRIG_ADDR__0 (0x080) +#define HW_DPLL_TOD_CTRL_1 (0x089) +#define HW_DPLL_TOD_CTRL_2 (0x08A) +#define HW_DPLL_TOD_OVR__0 (0x098) +#define HW_DPLL_TOD_OUT_0__0 (0x0B0) + +#define HW_Q0_Q1_CH_SYNC_CTRL_0 (0xa740) +#define HW_Q0_Q1_CH_SYNC_CTRL_1 (0xa741) +#define HW_Q2_Q3_CH_SYNC_CTRL_0 (0xa742) +#define HW_Q2_Q3_CH_SYNC_CTRL_1 (0xa743) +#define HW_Q4_Q5_CH_SYNC_CTRL_0 (0xa744) +#define HW_Q4_Q5_CH_SYNC_CTRL_1 (0xa745) +#define HW_Q6_Q7_CH_SYNC_CTRL_0 (0xa746) +#define HW_Q6_Q7_CH_SYNC_CTRL_1 (0xa747) +#define HW_Q8_CH_SYNC_CTRL_0 (0xa748) +#define HW_Q8_CH_SYNC_CTRL_1 (0xa749) +#define HW_Q9_CH_SYNC_CTRL_0 (0xa74a) +#define HW_Q9_CH_SYNC_CTRL_1 (0xa74b) +#define HW_Q10_CH_SYNC_CTRL_0 (0xa74c) +#define HW_Q10_CH_SYNC_CTRL_1 (0xa74d) +#define HW_Q11_CH_SYNC_CTRL_0 (0xa74e) +#define HW_Q11_CH_SYNC_CTRL_1 (0xa74f) + +#define SYNC_SOURCE_DPLL0_TOD_PPS 0x14 +#define SYNC_SOURCE_DPLL1_TOD_PPS 0x15 +#define SYNC_SOURCE_DPLL2_TOD_PPS 0x16 +#define SYNC_SOURCE_DPLL3_TOD_PPS 0x17 + +#define SYNCTRL1_MASTER_SYNC_RST BIT(7) +#define SYNCTRL1_MASTER_SYNC_TRIG BIT(5) +#define SYNCTRL1_TOD_SYNC_TRIG BIT(4) +#define SYNCTRL1_FBDIV_FRAME_SYNC_TRIG BIT(3) +#define SYNCTRL1_FBDIV_SYNC_TRIG BIT(2) +#define SYNCTRL1_Q1_DIV_SYNC_TRIG BIT(1) +#define SYNCTRL1_Q0_DIV_SYNC_TRIG BIT(0) + +#define HW_Q8_CTRL_SPARE (0xa7d4) +#define HW_Q11_CTRL_SPARE (0xa7ec) + +/** + * Select FOD5 as sync_trigger for Q8 divider. + * Transition from logic zero to one + * sets trigger to sync Q8 divider. + * + * Unused when FOD4 is driving Q8 divider (normal operation). + */ +#define Q9_TO_Q8_SYNC_TRIG BIT(1) + +/** + * Enable FOD5 as driver for clock and sync for Q8 divider. + * Enable fanout buffer for FOD5. + * + * Unused when FOD4 is driving Q8 divider (normal operation). + */ +#define Q9_TO_Q8_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK (BIT(0) | BIT(2)) + +/** + * Select FOD6 as sync_trigger for Q11 divider. + * Transition from logic zero to one + * sets trigger to sync Q11 divider. + * + * Unused when FOD7 is driving Q11 divider (normal operation). + */ +#define Q10_TO_Q11_SYNC_TRIG BIT(1) + +/** + * Enable FOD6 as driver for clock and sync for Q11 divider. + * Enable fanout buffer for FOD6. + * + * Unused when FOD7 is driving Q11 divider (normal operation). + */ +#define Q10_TO_Q11_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK (BIT(0) | BIT(2)) + +#define RESET_CTRL 0xc000 +#define SM_RESET 0x0012 +#define SM_RESET_CMD 0x5A + +#define GENERAL_STATUS 0xc014 +#define BOOT_STATUS 0x0000 +#define HW_REV_ID 0x000A +#define BOND_ID 0x000B +#define HW_CSR_ID 0x000C +#define HW_IRQ_ID 0x000E + +#define MAJ_REL 0x0010 +#define MIN_REL 0x0011 +#define HOTFIX_REL 0x0012 + +#define PIPELINE_ID 0x0014 +#define BUILD_ID 0x0018 + +#define JTAG_DEVICE_ID 0x001c +#define PRODUCT_ID 0x001e + +#define OTP_SCSR_CONFIG_SELECT 0x0022 + +#define STATUS 0xc03c +#define DPLL0_STATUS 0x0018 +#define DPLL1_STATUS 0x0019 +#define DPLL2_STATUS 0x001a +#define DPLL3_STATUS 0x001b +#define DPLL4_STATUS 0x001c +#define DPLL5_STATUS 0x001d +#define DPLL6_STATUS 0x001e +#define DPLL7_STATUS 0x001f +#define DPLL_SYS_STATUS 0x0020 +#define DPLL_SYS_APLL_STATUS 0x0021 +#define DPLL0_FILTER_STATUS 0x0044 +#define DPLL1_FILTER_STATUS 0x004c +#define DPLL2_FILTER_STATUS 0x0054 +#define DPLL3_FILTER_STATUS 0x005c +#define DPLL4_FILTER_STATUS 0x0064 +#define DPLL5_FILTER_STATUS 0x006c +#define DPLL6_FILTER_STATUS 0x0074 +#define DPLL7_FILTER_STATUS 0x007c +#define DPLLSYS_FILTER_STATUS 0x0084 +#define USER_GPIO0_TO_7_STATUS 0x008a +#define USER_GPIO8_TO_15_STATUS 0x008b + +#define GPIO_USER_CONTROL 0xc160 +#define GPIO0_TO_7_OUT 0x0000 +#define GPIO8_TO_15_OUT 0x0001 + +#define STICKY_STATUS_CLEAR 0xc164 + +#define GPIO_TOD_NOTIFICATION_CLEAR 0xc16c + +#define ALERT_CFG 0xc188 + +#define SYS_DPLL_XO 0xc194 + +#define SYS_APLL 0xc19c + +#define INPUT_0 0xc1b0 + +#define INPUT_1 0xc1c0 + +#define INPUT_2 0xc1d0 + +#define INPUT_3 0xc200 + +#define INPUT_4 0xc210 + +#define INPUT_5 0xc220 + +#define INPUT_6 0xc230 + +#define INPUT_7 0xc240 + +#define INPUT_8 0xc250 + +#define INPUT_9 0xc260 + +#define INPUT_10 0xc280 + +#define INPUT_11 0xc290 + +#define INPUT_12 0xc2a0 + +#define INPUT_13 0xc2b0 + +#define INPUT_14 0xc2c0 + +#define INPUT_15 0xc2d0 + +#define REF_MON_0 0xc2e0 + +#define REF_MON_1 0xc2ec + +#define REF_MON_2 0xc300 + +#define REF_MON_3 0xc30c + +#define REF_MON_4 0xc318 + +#define REF_MON_5 0xc324 + +#define REF_MON_6 0xc330 + +#define REF_MON_7 0xc33c + +#define REF_MON_8 0xc348 + +#define REF_MON_9 0xc354 + +#define REF_MON_10 0xc360 + +#define REF_MON_11 0xc36c + +#define REF_MON_12 0xc380 + +#define REF_MON_13 0xc38c + +#define REF_MON_14 0xc398 + +#define REF_MON_15 0xc3a4 + +#define DPLL_0 0xc3b0 +#define DPLL_CTRL_REG_0 0x0002 +#define DPLL_CTRL_REG_1 0x0003 +#define DPLL_CTRL_REG_2 0x0004 +#define DPLL_TOD_SYNC_CFG 0x0031 +#define DPLL_COMBO_SLAVE_CFG_0 0x0032 +#define DPLL_COMBO_SLAVE_CFG_1 0x0033 +#define DPLL_SLAVE_REF_CFG 0x0034 +#define DPLL_REF_MODE 0x0035 +#define DPLL_PHASE_MEASUREMENT_CFG 0x0036 +#define DPLL_MODE 0x0037 + +#define DPLL_1 0xc400 + +#define DPLL_2 0xc438 + +#define DPLL_3 0xc480 + +#define DPLL_4 0xc4b8 + +#define DPLL_5 0xc500 + +#define DPLL_6 0xc538 + +#define DPLL_7 0xc580 + +#define SYS_DPLL 0xc5b8 + +#define DPLL_CTRL_0 0xc600 +#define DPLL_CTRL_DPLL_MANU_REF_CFG 0x0001 +#define DPLL_CTRL_DPLL_FOD_FREQ 0x001c +#define DPLL_CTRL_COMBO_MASTER_CFG 0x003a + +#define DPLL_CTRL_1 0xc63c + +#define DPLL_CTRL_2 0xc680 + +#define DPLL_CTRL_3 0xc6bc + +#define DPLL_CTRL_4 0xc700 + +#define DPLL_CTRL_5 0xc73c + +#define DPLL_CTRL_6 0xc780 + +#define DPLL_CTRL_7 0xc7bc + +#define SYS_DPLL_CTRL 0xc800 + +#define DPLL_PHASE_0 0xc818 + +/* Signed 42-bit FFO in units of 2^(-53) */ +#define DPLL_WR_PHASE 0x0000 + +#define DPLL_PHASE_1 0xc81c + +#define DPLL_PHASE_2 0xc820 + +#define DPLL_PHASE_3 0xc824 + +#define DPLL_PHASE_4 0xc828 + +#define DPLL_PHASE_5 0xc82c + +#define DPLL_PHASE_6 0xc830 + +#define DPLL_PHASE_7 0xc834 + +#define DPLL_FREQ_0 0xc838 + +/* Signed 42-bit FFO in units of 2^(-53) */ +#define DPLL_WR_FREQ 0x0000 + +#define DPLL_FREQ_1 0xc840 + +#define DPLL_FREQ_2 0xc848 + +#define DPLL_FREQ_3 0xc850 + +#define DPLL_FREQ_4 0xc858 + +#define DPLL_FREQ_5 0xc860 + +#define DPLL_FREQ_6 0xc868 + +#define DPLL_FREQ_7 0xc870 + +#define DPLL_PHASE_PULL_IN_0 0xc880 +#define PULL_IN_OFFSET 0x0000 /* Signed 32 bit */ +#define PULL_IN_SLOPE_LIMIT 0x0004 /* Unsigned 24 bit */ +#define PULL_IN_CTRL 0x0007 + +#define DPLL_PHASE_PULL_IN_1 0xc888 + +#define DPLL_PHASE_PULL_IN_2 0xc890 + +#define DPLL_PHASE_PULL_IN_3 0xc898 + +#define DPLL_PHASE_PULL_IN_4 0xc8a0 + +#define DPLL_PHASE_PULL_IN_5 0xc8a8 + +#define DPLL_PHASE_PULL_IN_6 0xc8b0 + +#define DPLL_PHASE_PULL_IN_7 0xc8b8 + +#define GPIO_CFG 0xc8c0 +#define GPIO_CFG_GBL 0x0000 + +#define GPIO_0 0xc8c2 +#define GPIO_DCO_INC_DEC 0x0000 +#define GPIO_OUT_CTRL_0 0x0001 +#define GPIO_OUT_CTRL_1 0x0002 +#define GPIO_TOD_TRIG 0x0003 +#define GPIO_DPLL_INDICATOR 0x0004 +#define GPIO_LOS_INDICATOR 0x0005 +#define GPIO_REF_INPUT_DSQ_0 0x0006 +#define GPIO_REF_INPUT_DSQ_1 0x0007 +#define GPIO_REF_INPUT_DSQ_2 0x0008 +#define GPIO_REF_INPUT_DSQ_3 0x0009 +#define GPIO_MAN_CLK_SEL_0 0x000a +#define GPIO_MAN_CLK_SEL_1 0x000b +#define GPIO_MAN_CLK_SEL_2 0x000c +#define GPIO_SLAVE 0x000d +#define GPIO_ALERT_OUT_CFG 0x000e +#define GPIO_TOD_NOTIFICATION_CFG 0x000f +#define GPIO_CTRL 0x0010 + +#define GPIO_1 0xc8d4 + +#define GPIO_2 0xc8e6 + +#define GPIO_3 0xc900 + +#define GPIO_4 0xc912 + +#define GPIO_5 0xc924 + +#define GPIO_6 0xc936 + +#define GPIO_7 0xc948 + +#define GPIO_8 0xc95a + +#define GPIO_9 0xc980 + +#define GPIO_10 0xc992 + +#define GPIO_11 0xc9a4 + +#define GPIO_12 0xc9b6 + +#define GPIO_13 0xc9c8 + +#define GPIO_14 0xc9da + +#define GPIO_15 0xca00 + +#define OUT_DIV_MUX 0xca12 + +#define OUTPUT_0 0xca14 +/* FOD frequency output divider value */ +#define OUT_DIV 0x0000 +#define OUT_DUTY_CYCLE_HIGH 0x0004 +#define OUT_CTRL_0 0x0008 +#define OUT_CTRL_1 0x0009 +/* Phase adjustment in FOD cycles */ +#define OUT_PHASE_ADJ 0x000c + +#define OUTPUT_1 0xca24 + +#define OUTPUT_2 0xca34 + +#define OUTPUT_3 0xca44 + +#define OUTPUT_4 0xca54 + +#define OUTPUT_5 0xca64 + +#define OUTPUT_6 0xca80 + +#define OUTPUT_7 0xca90 + +#define OUTPUT_8 0xcaa0 + +#define OUTPUT_9 0xcab0 + +#define OUTPUT_10 0xcac0 + +#define OUTPUT_11 0xcad0 + +#define SERIAL 0xcae0 + +#define PWM_ENCODER_0 0xcb00 + +#define PWM_ENCODER_1 0xcb08 + +#define PWM_ENCODER_2 0xcb10 + +#define PWM_ENCODER_3 0xcb18 + +#define PWM_ENCODER_4 0xcb20 + +#define PWM_ENCODER_5 0xcb28 + +#define PWM_ENCODER_6 0xcb30 + +#define PWM_ENCODER_7 0xcb38 + +#define PWM_DECODER_0 0xcb40 + +#define PWM_DECODER_1 0xcb48 + +#define PWM_DECODER_2 0xcb50 + +#define PWM_DECODER_3 0xcb58 + +#define PWM_DECODER_4 0xcb60 + +#define PWM_DECODER_5 0xcb68 + +#define PWM_DECODER_6 0xcb70 + +#define PWM_DECODER_7 0xcb80 + +#define PWM_DECODER_8 0xcb88 + +#define PWM_DECODER_9 0xcb90 + +#define PWM_DECODER_10 0xcb98 + +#define PWM_DECODER_11 0xcba0 + +#define PWM_DECODER_12 0xcba8 + +#define PWM_DECODER_13 0xcbb0 + +#define PWM_DECODER_14 0xcbb8 + +#define PWM_DECODER_15 0xcbc0 + +#define PWM_USER_DATA 0xcbc8 + +#define TOD_0 0xcbcc + +/* Enable TOD counter, output channel sync and even-PPS mode */ +#define TOD_CFG 0x0000 + +#define TOD_1 0xcbce + +#define TOD_2 0xcbd0 + +#define TOD_3 0xcbd2 + + +#define TOD_WRITE_0 0xcc00 +/* 8-bit subns, 32-bit ns, 48-bit seconds */ +#define TOD_WRITE 0x0000 +/* Counter increments after TOD write is completed */ +#define TOD_WRITE_COUNTER 0x000c +/* TOD write trigger configuration */ +#define TOD_WRITE_SELECT_CFG_0 0x000d +/* TOD write trigger selection */ +#define TOD_WRITE_CMD 0x000f + +#define TOD_WRITE_1 0xcc10 + +#define TOD_WRITE_2 0xcc20 + +#define TOD_WRITE_3 0xcc30 + +#define TOD_READ_PRIMARY_0 0xcc40 +/* 8-bit subns, 32-bit ns, 48-bit seconds */ +#define TOD_READ_PRIMARY 0x0000 +/* Counter increments after TOD write is completed */ +#define TOD_READ_PRIMARY_COUNTER 0x000b +/* Read trigger configuration */ +#define TOD_READ_PRIMARY_SEL_CFG_0 0x000c +/* Read trigger selection */ +#define TOD_READ_PRIMARY_CMD 0x000e + +#define TOD_READ_PRIMARY_1 0xcc50 + +#define TOD_READ_PRIMARY_2 0xcc60 + +#define TOD_READ_PRIMARY_3 0xcc80 + +#define TOD_READ_SECONDARY_0 0xcc90 + +#define TOD_READ_SECONDARY_1 0xcca0 + +#define TOD_READ_SECONDARY_2 0xccb0 + +#define TOD_READ_SECONDARY_3 0xccc0 + +#define OUTPUT_TDC_CFG 0xccd0 + +#define OUTPUT_TDC_0 0xcd00 + +#define OUTPUT_TDC_1 0xcd08 + +#define OUTPUT_TDC_2 0xcd10 + +#define OUTPUT_TDC_3 0xcd18 + +#define INPUT_TDC 0xcd20 + +#define SCRATCH 0xcf50 + +#define EEPROM 0xcf68 + +#define OTP 0xcf70 + +#define BYTE 0xcf80 + +/* Bit definitions for the MAJ_REL register */ +#define MAJOR_SHIFT (1) +#define MAJOR_MASK (0x7f) +#define PR_BUILD BIT(0) + +/* Bit definitions for the USER_GPIO0_TO_7_STATUS register */ +#define GPIO0_LEVEL BIT(0) +#define GPIO1_LEVEL BIT(1) +#define GPIO2_LEVEL BIT(2) +#define GPIO3_LEVEL BIT(3) +#define GPIO4_LEVEL BIT(4) +#define GPIO5_LEVEL BIT(5) +#define GPIO6_LEVEL BIT(6) +#define GPIO7_LEVEL BIT(7) + +/* Bit definitions for the USER_GPIO8_TO_15_STATUS register */ +#define GPIO8_LEVEL BIT(0) +#define GPIO9_LEVEL BIT(1) +#define GPIO10_LEVEL BIT(2) +#define GPIO11_LEVEL BIT(3) +#define GPIO12_LEVEL BIT(4) +#define GPIO13_LEVEL BIT(5) +#define GPIO14_LEVEL BIT(6) +#define GPIO15_LEVEL BIT(7) + +/* Bit definitions for the GPIO0_TO_7_OUT register */ +#define GPIO0_DRIVE_LEVEL BIT(0) +#define GPIO1_DRIVE_LEVEL BIT(1) +#define GPIO2_DRIVE_LEVEL BIT(2) +#define GPIO3_DRIVE_LEVEL BIT(3) +#define GPIO4_DRIVE_LEVEL BIT(4) +#define GPIO5_DRIVE_LEVEL BIT(5) +#define GPIO6_DRIVE_LEVEL BIT(6) +#define GPIO7_DRIVE_LEVEL BIT(7) + +/* Bit definitions for the GPIO8_TO_15_OUT register */ +#define GPIO8_DRIVE_LEVEL BIT(0) +#define GPIO9_DRIVE_LEVEL BIT(1) +#define GPIO10_DRIVE_LEVEL BIT(2) +#define GPIO11_DRIVE_LEVEL BIT(3) +#define GPIO12_DRIVE_LEVEL BIT(4) +#define GPIO13_DRIVE_LEVEL BIT(5) +#define GPIO14_DRIVE_LEVEL BIT(6) +#define GPIO15_DRIVE_LEVEL BIT(7) + +/* Bit definitions for the DPLL_TOD_SYNC_CFG register */ +#define TOD_SYNC_SOURCE_SHIFT (1) +#define TOD_SYNC_SOURCE_MASK (0x3) +#define TOD_SYNC_EN BIT(0) + +/* Bit definitions for the DPLL_MODE register */ +#define WRITE_TIMER_MODE BIT(6) +#define PLL_MODE_SHIFT (3) +#define PLL_MODE_MASK (0x7) +#define STATE_MODE_SHIFT (0) +#define STATE_MODE_MASK (0x7) + +/* Bit definitions for the GPIO_CFG_GBL register */ +#define SUPPLY_MODE_SHIFT (0) +#define SUPPLY_MODE_MASK (0x3) + +/* Bit definitions for the GPIO_DCO_INC_DEC register */ +#define INCDEC_DPLL_INDEX_SHIFT (0) +#define INCDEC_DPLL_INDEX_MASK (0x7) + +/* Bit definitions for the GPIO_OUT_CTRL_0 register */ +#define CTRL_OUT_0 BIT(0) +#define CTRL_OUT_1 BIT(1) +#define CTRL_OUT_2 BIT(2) +#define CTRL_OUT_3 BIT(3) +#define CTRL_OUT_4 BIT(4) +#define CTRL_OUT_5 BIT(5) +#define CTRL_OUT_6 BIT(6) +#define CTRL_OUT_7 BIT(7) + +/* Bit definitions for the GPIO_OUT_CTRL_1 register */ +#define CTRL_OUT_8 BIT(0) +#define CTRL_OUT_9 BIT(1) +#define CTRL_OUT_10 BIT(2) +#define CTRL_OUT_11 BIT(3) +#define CTRL_OUT_12 BIT(4) +#define CTRL_OUT_13 BIT(5) +#define CTRL_OUT_14 BIT(6) +#define CTRL_OUT_15 BIT(7) + +/* Bit definitions for the GPIO_TOD_TRIG register */ +#define TOD_TRIG_0 BIT(0) +#define TOD_TRIG_1 BIT(1) +#define TOD_TRIG_2 BIT(2) +#define TOD_TRIG_3 BIT(3) + +/* Bit definitions for the GPIO_DPLL_INDICATOR register */ +#define IND_DPLL_INDEX_SHIFT (0) +#define IND_DPLL_INDEX_MASK (0x7) + +/* Bit definitions for the GPIO_LOS_INDICATOR register */ +#define REFMON_INDEX_SHIFT (0) +#define REFMON_INDEX_MASK (0xf) +/* Active level of LOS indicator, 0=low 1=high */ +#define ACTIVE_LEVEL BIT(4) + +/* Bit definitions for the GPIO_REF_INPUT_DSQ_0 register */ +#define DSQ_INP_0 BIT(0) +#define DSQ_INP_1 BIT(1) +#define DSQ_INP_2 BIT(2) +#define DSQ_INP_3 BIT(3) +#define DSQ_INP_4 BIT(4) +#define DSQ_INP_5 BIT(5) +#define DSQ_INP_6 BIT(6) +#define DSQ_INP_7 BIT(7) + +/* Bit definitions for the GPIO_REF_INPUT_DSQ_1 register */ +#define DSQ_INP_8 BIT(0) +#define DSQ_INP_9 BIT(1) +#define DSQ_INP_10 BIT(2) +#define DSQ_INP_11 BIT(3) +#define DSQ_INP_12 BIT(4) +#define DSQ_INP_13 BIT(5) +#define DSQ_INP_14 BIT(6) +#define DSQ_INP_15 BIT(7) + +/* Bit definitions for the GPIO_REF_INPUT_DSQ_2 register */ +#define DSQ_DPLL_0 BIT(0) +#define DSQ_DPLL_1 BIT(1) +#define DSQ_DPLL_2 BIT(2) +#define DSQ_DPLL_3 BIT(3) +#define DSQ_DPLL_4 BIT(4) +#define DSQ_DPLL_5 BIT(5) +#define DSQ_DPLL_6 BIT(6) +#define DSQ_DPLL_7 BIT(7) + +/* Bit definitions for the GPIO_REF_INPUT_DSQ_3 register */ +#define DSQ_DPLL_SYS BIT(0) +#define GPIO_DSQ_LEVEL BIT(1) + +/* Bit definitions for the GPIO_TOD_NOTIFICATION_CFG register */ +#define DPLL_TOD_SHIFT (0) +#define DPLL_TOD_MASK (0x3) +#define TOD_READ_SECONDARY BIT(2) +#define GPIO_ASSERT_LEVEL BIT(3) + +/* Bit definitions for the GPIO_CTRL register */ +#define GPIO_FUNCTION_EN BIT(0) +#define GPIO_CMOS_OD_MODE BIT(1) +#define GPIO_CONTROL_DIR BIT(2) +#define GPIO_PU_PD_MODE BIT(3) +#define GPIO_FUNCTION_SHIFT (4) +#define GPIO_FUNCTION_MASK (0xf) + +/* Bit definitions for the OUT_CTRL_1 register */ +#define OUT_SYNC_DISABLE BIT(7) +#define SQUELCH_VALUE BIT(6) +#define SQUELCH_DISABLE BIT(5) +#define PAD_VDDO_SHIFT (2) +#define PAD_VDDO_MASK (0x7) +#define PAD_CMOSDRV_SHIFT (0) +#define PAD_CMOSDRV_MASK (0x3) + +/* Bit definitions for the TOD_CFG register */ +#define TOD_EVEN_PPS_MODE BIT(2) +#define TOD_OUT_SYNC_ENABLE BIT(1) +#define TOD_ENABLE BIT(0) + +/* Bit definitions for the TOD_WRITE_SELECT_CFG_0 register */ +#define WR_PWM_DECODER_INDEX_SHIFT (4) +#define WR_PWM_DECODER_INDEX_MASK (0xf) +#define WR_REF_INDEX_SHIFT (0) +#define WR_REF_INDEX_MASK (0xf) + +/* Bit definitions for the TOD_WRITE_CMD register */ +#define TOD_WRITE_SELECTION_SHIFT (0) +#define TOD_WRITE_SELECTION_MASK (0xf) +/* 4.8.7 */ +#define TOD_WRITE_TYPE_SHIFT (4) +#define TOD_WRITE_TYPE_MASK (0x3) + +/* Bit definitions for the TOD_READ_PRIMARY_SEL_CFG_0 register */ +#define RD_PWM_DECODER_INDEX_SHIFT (4) +#define RD_PWM_DECODER_INDEX_MASK (0xf) +#define RD_REF_INDEX_SHIFT (0) +#define RD_REF_INDEX_MASK (0xf) + +/* Bit definitions for the TOD_READ_PRIMARY_CMD register */ +#define TOD_READ_TRIGGER_MODE BIT(4) +#define TOD_READ_TRIGGER_SHIFT (0) +#define TOD_READ_TRIGGER_MASK (0xf) + +/* Bit definitions for the DPLL_CTRL_COMBO_MASTER_CFG register */ +#define COMBO_MASTER_HOLD BIT(0) + +/* Bit definitions for DPLL_SYS_STATUS register */ +#define DPLL_SYS_STATE_MASK (0xf) + +/* Bit definitions for SYS_APLL_STATUS register */ +#define SYS_APLL_LOSS_LOCK_LIVE_MASK BIT(0) +#define SYS_APLL_LOSS_LOCK_LIVE_LOCKED 0 +#define SYS_APLL_LOSS_LOCK_LIVE_UNLOCKED 1 + +/* Bit definitions for the DPLL0_STATUS register */ +#define DPLL_STATE_MASK (0xf) +#define DPLL_STATE_SHIFT (0x0) + +/* Values of DPLL_N.DPLL_MODE.PLL_MODE */ +enum pll_mode { + PLL_MODE_MIN = 0, + PLL_MODE_NORMAL = PLL_MODE_MIN, + PLL_MODE_WRITE_PHASE = 1, + PLL_MODE_WRITE_FREQUENCY = 2, + PLL_MODE_GPIO_INC_DEC = 3, + PLL_MODE_SYNTHESIS = 4, + PLL_MODE_PHASE_MEASUREMENT = 5, + PLL_MODE_DISABLED = 6, + PLL_MODE_MAX = PLL_MODE_DISABLED, +}; + +enum hw_tod_write_trig_sel { + HW_TOD_WR_TRIG_SEL_MIN = 0, + HW_TOD_WR_TRIG_SEL_MSB = HW_TOD_WR_TRIG_SEL_MIN, + HW_TOD_WR_TRIG_SEL_RESERVED = 1, + HW_TOD_WR_TRIG_SEL_TOD_PPS = 2, + HW_TOD_WR_TRIG_SEL_IRIGB_PPS = 3, + HW_TOD_WR_TRIG_SEL_PWM_PPS = 4, + HW_TOD_WR_TRIG_SEL_GPIO = 5, + HW_TOD_WR_TRIG_SEL_FOD_SYNC = 6, + WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_FOD_SYNC, +}; + +enum scsr_read_trig_sel { + /* CANCEL CURRENT TOD READ; MODULE BECOMES IDLE - NO TRIGGER OCCURS */ + SCSR_TOD_READ_TRIG_SEL_DISABLE = 0, + /* TRIGGER IMMEDIATELY */ + SCSR_TOD_READ_TRIG_SEL_IMMEDIATE = 1, + /* TRIGGER ON RISING EDGE OF INTERNAL TOD PPS SIGNAL */ + SCSR_TOD_READ_TRIG_SEL_TODPPS = 2, + /* TRGGER ON RISING EDGE OF SELECTED REFERENCE INPUT */ + SCSR_TOD_READ_TRIG_SEL_REFCLK = 3, + /* TRIGGER ON RISING EDGE OF SELECTED PWM DECODER 1PPS OUTPUT */ + SCSR_TOD_READ_TRIG_SEL_PWMPPS = 4, + SCSR_TOD_READ_TRIG_SEL_RESERVED = 5, + /* TRIGGER WHEN WRITE FREQUENCY EVENT OCCURS */ + SCSR_TOD_READ_TRIG_SEL_WRITEFREQUENCYEVENT = 6, + /* TRIGGER ON SELECTED GPIO */ + SCSR_TOD_READ_TRIG_SEL_GPIO = 7, + SCSR_TOD_READ_TRIG_SEL_MAX = SCSR_TOD_READ_TRIG_SEL_GPIO, +}; + +/* Values STATUS.DPLL_SYS_STATUS.DPLL_SYS_STATE */ +enum dpll_state { + DPLL_STATE_MIN = 0, + DPLL_STATE_FREERUN = DPLL_STATE_MIN, + DPLL_STATE_LOCKACQ = 1, + DPLL_STATE_LOCKREC = 2, + DPLL_STATE_LOCKED = 3, + DPLL_STATE_HOLDOVER = 4, + DPLL_STATE_OPEN_LOOP = 5, + DPLL_STATE_MAX = DPLL_STATE_OPEN_LOOP, +}; + +/* 4.8.7 only */ +enum scsr_tod_write_trig_sel { + SCSR_TOD_WR_TRIG_SEL_DISABLE = 0, + SCSR_TOD_WR_TRIG_SEL_IMMEDIATE = 1, + SCSR_TOD_WR_TRIG_SEL_REFCLK = 2, + SCSR_TOD_WR_TRIG_SEL_PWMPPS = 3, + SCSR_TOD_WR_TRIG_SEL_TODPPS = 4, + SCSR_TOD_WR_TRIG_SEL_SYNCFOD = 5, + SCSR_TOD_WR_TRIG_SEL_GPIO = 6, + SCSR_TOD_WR_TRIG_SEL_MAX = SCSR_TOD_WR_TRIG_SEL_GPIO, +}; + +/* 4.8.7 only */ +enum scsr_tod_write_type_sel { + SCSR_TOD_WR_TYPE_SEL_ABSOLUTE = 0, + SCSR_TOD_WR_TYPE_SEL_DELTA_PLUS = 1, + SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS = 2, + SCSR_TOD_WR_TYPE_SEL_MAX = SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS, +}; +#endif diff --git a/include/linux/mfd/rsmu.h b/include/linux/mfd/rsmu.h new file mode 100644 index 0000000..f8a4ba8 --- /dev/null +++ b/include/linux/mfd/rsmu.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Multi-function driver for the IDT ClockMatrix(TM) and 82p33xxx families of + * timing and synchronization devices. + * + * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company. + */ + +#ifndef __LINUX_MFD_RSMU_H +#define __LINUX_MFD_RSMU_H + +/* We only support Clockmatrix and Sabre now */ +enum rsmu_type { + RSMU_CM = 0, + RSMU_SABRE = 1, + RSMU_NONE = 2, +}; + +/** + * + * struct rsmu_pdata - platform data structure for MFD cell devices. + * + * @lock: Mutex used by cell devices to make sure a series of requests + * are not interrupted. + * + * @type: RSMU device type. + * + * @index: Device index. + */ +struct rsmu_pdata { + enum rsmu_type type; + struct mutex *lock; + u8 index; +}; + +/** + * NOTE: the functions below are not intended for use outside + * of the IDT synchronization management unit drivers + */ +extern int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size); +extern int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size); +#endif /* __LINUX_MFD_RSMU_H */