There are cortex-r5 processors in Xilinx Zynq UltraScale+ MPSoC platforms. This remoteproc driver is to manage the R5 processors.
Signed-off-by: Wendy Liang <[email protected]> --- drivers/remoteproc/Kconfig | 9 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/zynqmp_r5_remoteproc.c | 692 ++++++++++++++++++++++++++++++ 3 files changed, 702 insertions(+) create mode 100644 drivers/remoteproc/zynqmp_r5_remoteproc.c diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index cd1c168..83aac63 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -158,6 +158,15 @@ config ST_REMOTEPROC config ST_SLIM_REMOTEPROC tristate +config ZYNQMP_R5_REMOTEPROC + tristate "ZynqMP_r5 remoteproc support" + depends on ARM64 && PM && ARCH_ZYNQMP + select RPMSG_VIRTIO + select ZYNQMP_FIRMWARE + help + Say y here to support ZynqMP R5 remote processors via the remote + processor framework. + endif # REMOTEPROC endmenu diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile index 02627ed..147923c 100644 --- a/drivers/remoteproc/Makefile +++ b/drivers/remoteproc/Makefile @@ -23,3 +23,4 @@ qcom_wcnss_pil-y += qcom_wcnss.o qcom_wcnss_pil-y += qcom_wcnss_iris.o obj-$(CONFIG_ST_REMOTEPROC) += st_remoteproc.o obj-$(CONFIG_ST_SLIM_REMOTEPROC) += st_slim_rproc.o +obj-$(CONFIG_ZYNQMP_R5_REMOTEPROC) += zynqmp_r5_remoteproc.o diff --git a/drivers/remoteproc/zynqmp_r5_remoteproc.c b/drivers/remoteproc/zynqmp_r5_remoteproc.c new file mode 100644 index 0000000..7fc3718 --- /dev/null +++ b/drivers/remoteproc/zynqmp_r5_remoteproc.c @@ -0,0 +1,692 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Zynq R5 Remote Processor driver + * + * Copyright (C) 2015 Xilinx, Inc. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/remoteproc.h> +#include <linux/interrupt.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/of_reserved_mem.h> +#include <linux/slab.h> +#include <linux/cpu.h> +#include <linux/delay.h> +#include <linux/list.h> +#include <linux/genalloc.h> +#include <linux/pfn.h> +#include <linux/idr.h> +#include <linux/firmware/xlnx-zynqmp.h> + +#include "remoteproc_internal.h" + +/* IPI reg offsets */ +#define TRIG_OFFSET 0x00000000 +#define OBS_OFFSET 0x00000004 +#define ISR_OFFSET 0x00000010 +#define IMR_OFFSET 0x00000014 +#define IER_OFFSET 0x00000018 +#define IDR_OFFSET 0x0000001C +#define IPI_ALL_MASK 0x0F0F0301 + +/* RPU IPI mask */ +#define RPU_IPI_INIT_MASK 0x00000100 +#define RPU_IPI_MASK(n) (RPU_IPI_INIT_MASK << (n)) +#define RPU_0_IPI_MASK RPU_IPI_MASK(0) +#define RPU_1_IPI_MASK RPU_IPI_MASK(1) + +/* PM proc states */ +#define PM_PROC_STATE_ACTIVE 1u + +/* Maximum TCM power nodes IDs */ +#define MAX_TCM_PNODES 4 + +/* Register access macros */ +#define reg_read(base, reg) \ + readl(((void __iomem *)(base)) + (reg)) +#define reg_write(base, reg, val) \ + writel((val), ((void __iomem *)(base)) + (reg)) + +#define DEFAULT_FIRMWARE_NAME "rproc-rpu-fw" + +static bool autoboot __read_mostly; + +struct zynqmp_r5_rproc_pdata; + +/** + * struct zynqmp_r5_rproc_pdata - zynqmp rpu remote processor instance state + * @rproc: rproc handle + * @workqueue: workqueue for the RPU remoteproc + * @ipi_base: virt ptr to IPI channel address registers for APU + * @rpu_mode: RPU core configuration + * @rpu_id: RPU CPU id + * @rpu_pnode_id: RPU CPU power domain id + * @mem_pools: list of gen_pool for firmware mmio_sram memory and their + * power domain IDs + * @mems: list of rproc_mem_entries for firmware + * @irq: IRQ number + * @ipi_dest_mask: IPI destination mask for the IPI channel + */ +struct zynqmp_r5_rproc_pdata { + struct rproc *rproc; + struct work_struct workqueue; + void __iomem *ipi_base; + enum rpu_oper_mode rpu_mode; + struct list_head mems; + u32 ipi_dest_mask; + u32 rpu_id; + u32 rpu_pnode_id; + int irq; + u32 tcm_pnode_id[MAX_TCM_PNODES]; +}; + +/** + * r5_boot_addr_config - configure the boot address of R5 + * @pdata: platform data + * @bootmem: boot from LOVEC or HIVEC + * + * This function will set the RPU boot address + */ +static void r5_boot_addr_config(struct zynqmp_r5_rproc_pdata *pdata, + enum rpu_boot_mem bootmem) +{ + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + + pr_debug("%s: R5 ID: %d, boot_dev %d\n", + __func__, pdata->rpu_id, bootmem); + + if (!eemi || !eemi->ioctl) { + pr_err("%s: no eemi ioctl operation.\n", __func__); + return; + } + eemi->ioctl(pdata->rpu_pnode_id, IOCTL_RPU_BOOT_ADDR_CONFIG, + bootmem, 0, NULL); +} + +/** + * r5_mode_config - configure R5 operation mode + * @pdata: platform data + * + * configure R5 to split mode or lockstep mode + * based on the platform data. + */ +static void r5_mode_config(struct zynqmp_r5_rproc_pdata *pdata) +{ + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + + pr_debug("%s: mode: %d\n", __func__, pdata->rpu_mode); + + if (!eemi || !eemi->ioctl) { + pr_err("%s: no eemi ioctl operation.\n", __func__); + return; + } + eemi->ioctl(pdata->rpu_pnode_id, IOCTL_SET_RPU_OPER_MODE, + pdata->rpu_mode, 0, NULL); +} + +/** + * r5_release_tcm() - release TCM + * @pdata: platform data + * + * Release TCM + */ +static void r5_release_tcm(struct zynqmp_r5_rproc_pdata *pdata) +{ + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + int i; + + if (!eemi || !eemi->release_node) { + pr_err("Failed to release TCM\n"); + return; + } + + for (i = 0; i < MAX_TCM_PNODES; i++) { + if (pdata->tcm_pnode_id[i] != 0) + eemi->release_node(pdata->tcm_pnode_id[i]); + } +} + +/** + * disable_ipi - disable IPI + * @pdata: platform data + * + * Disable IPI interrupt + */ +static inline void disable_ipi(struct zynqmp_r5_rproc_pdata *pdata) +{ + /* Disable R5 IPI interrupt */ + if (pdata->ipi_base) + reg_write(pdata->ipi_base, IDR_OFFSET, pdata->ipi_dest_mask); +} + +/** + * enable_ipi - enable IPI + * @pdata: platform data + * + * Enable IPI interrupt + */ +static inline void enable_ipi(struct zynqmp_r5_rproc_pdata *pdata) +{ + /* Enable R5 IPI interrupt */ + if (pdata->ipi_base) + reg_write(pdata->ipi_base, IER_OFFSET, pdata->ipi_dest_mask); +} + +/** + * event_notified_idr_cb - event notified idr callback + * @id: idr id + * @ptr: pointer to idr private data + * @data: data passed to idr_for_each callback + * + * Pass notification to remoteproc virtio + * + * @return: 0. having return is to satisfy the idr_for_each() function + * pointer input argument requirement. + */ +static int event_notified_idr_cb(int id, void *ptr, void *data) +{ + struct rproc *rproc = data; + + (void)rproc_vq_interrupt(rproc, id); + return 0; +} + +static void handle_event_notified(struct work_struct *work) +{ + struct rproc *rproc; + struct zynqmp_r5_rproc_pdata *local; + + local = container_of(work, struct zynqmp_r5_rproc_pdata, workqueue); + rproc = local->rproc; + idr_for_each(&rproc->notifyids, event_notified_idr_cb, rproc); +} + +static int zynqmp_r5_rproc_start(struct rproc *rproc) +{ + struct device *dev = rproc->dev.parent; + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + enum rpu_boot_mem bootmem; + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + + dev_dbg(dev, "%s\n", __func__); + + if (!eemi || !eemi->force_powerdown || + !eemi->request_wakeup) { + pr_err("Failed to start R5\n"); + return -ENXIO; + } + + /* Set up R5 */ + if ((rproc->bootaddr & 0xF0000000) == 0xF0000000) + bootmem = PM_RPU_BOOTMEM_HIVEC; + else + bootmem = PM_RPU_BOOTMEM_LOVEC; + dev_info(dev, "RPU boot from %s.", + bootmem == PM_RPU_BOOTMEM_HIVEC ? "OCM" : "TCM"); + + r5_mode_config(local); + eemi->force_powerdown(local->rpu_pnode_id, + ZYNQMP_PM_REQUEST_ACK_BLOCKING); + r5_boot_addr_config(local, bootmem); + /* Add delay before release from halt and reset */ + usleep_range(400, 500); + eemi->request_wakeup(local->rpu_pnode_id, + 1, bootmem, + ZYNQMP_PM_REQUEST_ACK_NO); + + /* Make sure IPI is enabled */ + enable_ipi(local); + + return 0; +} + +/* kick a firmware */ +static void zynqmp_r5_rproc_kick(struct rproc *rproc, int vqid) +{ + struct device *dev = rproc->dev.parent; + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + + dev_dbg(dev, "KICK Firmware to start send messages vqid %d\n", vqid); + + /* + * send irq to R5 firmware + * Currently vqid is not used because we only got one. + */ + if (local->ipi_base) + reg_write(local->ipi_base, TRIG_OFFSET, local->ipi_dest_mask); +} + +/* power off the remote processor */ +static int zynqmp_r5_rproc_stop(struct rproc *rproc) +{ + struct device *dev = rproc->dev.parent; + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + struct rproc_mem_entry *mem, *nmem; + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + + dev_dbg(dev, "%s\n", __func__); + + if (!eemi || !eemi->force_powerdown) { + pr_err("Failed to stop R5\n"); + return -ENXIO; + } + + disable_ipi(local); + eemi->force_powerdown(local->rpu_pnode_id, + ZYNQMP_PM_REQUEST_ACK_BLOCKING); + + return 0; +} + +static void *zynqmp_r5_rproc_da_to_va(struct rproc *rproc, u64 da, int len) +{ + struct rproc_mem_entry *mem; + void *va = NULL; + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + + list_for_each_entry(mem, &local->mems, node) { + int offset = da - mem->da; + + /* try next carveout if da is too small */ + if (offset < 0) + continue; + + /* try next carveout if da is too large */ + if (offset + len > mem->len) + continue; + + va = mem->va + offset; + + break; + } + return va; +} + +static int zynqmp_r5_parse_fw(struct rproc *rproc, const struct firmware *fw) +{ + int ret; + + ret = rproc_elf_load_rsc_table(rproc, fw); + if (ret == -EINVAL) + /* No resource table */ + return 0; + else + return ret; +} + +static struct rproc_ops zynqmp_r5_rproc_ops = { + .start = zynqmp_r5_rproc_start, + .stop = zynqmp_r5_rproc_stop, + .kick = zynqmp_r5_rproc_kick, + .da_to_va = zynqmp_r5_rproc_da_to_va, +}; + +/* Release R5 from reset and make it halted. + * In case the firmware uses TCM, in order to load firmware to TCM, + * will need to release R5 from reset and stay in halted state. + */ +static int zynqmp_r5_rproc_init(struct rproc *rproc) +{ + struct device *dev = rproc->dev.parent; + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + + dev_dbg(dev, "%s\n", __func__); + enable_ipi(local); + return 0; +} + +static irqreturn_t r5_remoteproc_interrupt(int irq, void *dev_id) +{ + struct device *dev = dev_id; + struct platform_device *pdev = to_platform_device(dev); + struct rproc *rproc = platform_get_drvdata(pdev); + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + u32 ipi_reg; + + /* Check if there is a kick from R5 */ + ipi_reg = reg_read(local->ipi_base, ISR_OFFSET); + if (!(ipi_reg & local->ipi_dest_mask)) + return IRQ_NONE; + + dev_dbg(dev, "KICK Linux because of pending message(irq%d)\n", irq); + reg_write(local->ipi_base, ISR_OFFSET, local->ipi_dest_mask); + schedule_work(&local->workqueue); + + return IRQ_HANDLED; +} + +/* zynqmp_r5_get_tcm_memories() - get tcm memories + * @pdev: pointer to the platform device + * @pdata: pointer to the remoteproc private data + * + * Function to create remoteproc memory entries for TCM memories. + */ +static int zynqmp_r5_get_tcms(struct platform_device *pdev, + struct zynqmp_r5_rproc_pdata *pdata) +{ + static const char * const mem_names[] = {"tcm_a", "tcm_b"}; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + int num_mems = 0; + int i, ret; + struct property *prop; + const __be32 *cur; + u32 val; + const struct zynqmp_eemi_ops *eemi = zynqmp_pm_get_eemi_ops(); + + /* Get TCM power node ids */ + i = 0; + of_property_for_each_u32(np, "tcm-pnode-id", prop, cur, val) + pdata->tcm_pnode_id[i++] = val; + + /* Request TCMs */ + for (i = 0; i < MAX_TCM_PNODES; i++) { + if (pdata->tcm_pnode_id[i] != 0) { + ret = eemi->request_node(pdata->tcm_pnode_id[i], + ZYNQMP_PM_CAPABILITY_ACCESS, 0, + ZYNQMP_PM_REQUEST_ACK_BLOCKING + ); + if (ret < 0) { + dev_err(dev, "failed to request TCM: %u\n", + pdata->tcm_pnode_id[i]); + return ret; + } + dev_dbg(dev, "request tcm pnode: %u\n", + pdata->tcm_pnode_id[i]); + } else { + break; + } + } + /* Create remoteproc memories entries for TCM memories */ + num_mems = ARRAY_SIZE(mem_names); + for (i = 0; i < num_mems; i++) { + struct resource *res; + struct rproc_mem_entry *mem; + dma_addr_t dma; + resource_size_t size; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + mem_names[i]); + mem = devm_kzalloc(dev, sizeof(struct rproc_mem_entry), + GFP_KERNEL); + if (!mem) + return -ENOMEM; + /* Map it as normal memory */ + size = resource_size(res); + mem->va = devm_ioremap_wc(dev, res->start, size); + mem->len = size; + dma = (dma_addr_t)res->start; + mem->dma = dma; + /* TCM memory: + * TCM_0: da 0 <-> global addr 0xFFE00000 + * TCM_1: da 0 <-> global addr 0xFFE90000 + */ + if ((dma & 0xFFF00000) == 0xFFE00000) { + if ((dma & 0xFFF80000) == 0xFFE80000) + mem->da -= 0x90000; + else + mem->da = (dma & 0x000FFFFF); + } + dev_dbg(dev, "%s: va = %p, da = 0x%x dma = 0x%llx\n", + __func__, mem->va, mem->da, mem->dma); + list_add_tail(&mem->node, &pdata->mems); + } + return 0; +} + +/* zynqmp_r5_get_reserved_mems() - get reserved memories + * @pdev: pointer to the platform device + * @pdata: pointer to the remoteproc private data + * + * Function to create remoteproc memory entries from memory-region + * property. + */ +static int zynqmp_r5_get_reserved_mems(struct platform_device *pdev, + struct zynqmp_r5_rproc_pdata *pdata) +{ + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + int num_mems; + int i; + + num_mems = of_count_phandle_with_args(np, "memory-region", NULL); + if (num_mems <= 0) + return 0; + for (i = 0; i < num_mems; i++) { + struct device_node *node; + struct resource res; + resource_size_t size; + struct rproc_mem_entry *mem; + int ret; + + node = of_parse_phandle(np, "memory-region", i); + ret = of_device_is_compatible(node, "rproc-prog-memory"); + if (!ret) { + /* it is DMA memory. */ + dev_info(dev, "%s, dma memory %d\n", __func__, i); + ret = of_reserved_mem_device_init_by_idx(dev, + np, i); + if (ret) { + dev_err(dev, "unable to reserve DMA mem.\n"); + return ret; + } + continue; + } + ret = of_address_to_resource(node, 0, &res); + if (ret) { + dev_err(dev, "unable to resolve memory region.\n"); + return ret; + } + mem = devm_kzalloc(dev, sizeof(struct rproc_mem_entry), + GFP_KERNEL); + if (!mem) + return -ENOMEM; + /* Map it as normal memory */ + size = resource_size(&res); + mem->va = devm_ioremap_wc(dev, res.start, size); + mem->len = size; + mem->dma = (dma_addr_t)res.start; + mem->da = (u32)res.start; + dev_dbg(dev, "%s: va = %p, da = 0x%x dma = 0x%llx\n", + __func__, mem->va, mem->da, mem->dma); + list_add_tail(&mem->node, &pdata->mems); + } + return 0; +} + +static int zynqmp_r5_remoteproc_probe(struct platform_device *pdev) +{ + const unsigned char *prop; + struct resource *res; + int ret = 0; + struct zynqmp_r5_rproc_pdata *local; + struct rproc *rproc; + + rproc = rproc_alloc(&pdev->dev, dev_name(&pdev->dev), + &zynqmp_r5_rproc_ops, NULL, + sizeof(struct zynqmp_r5_rproc_pdata)); + if (!rproc) { + dev_err(&pdev->dev, "rproc allocation failed\n"); + return -ENOMEM; + } + local = rproc->priv; + local->rproc = rproc; + + platform_set_drvdata(pdev, rproc); + + /* Override parse_fw op to allow no resource table firmware */ + rproc->ops->parse_fw = zynqmp_r5_parse_fw; + + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(&pdev->dev, "dma_set_coherent_mask: %d\n", ret); + goto rproc_fault; + } + + /* Get the RPU power domain id */ + ret = of_property_read_u32(pdev->dev.of_node, "rpu-pnode-id", + &local->rpu_pnode_id); + if (ret) { + dev_err(&pdev->dev, "No RPU power node ID is specified.\n"); + ret = -EINVAL; + goto rproc_fault; + } + dev_dbg(&pdev->dev, "RPU[%d] pnode_id = %d.\n", + local->rpu_id, local->rpu_pnode_id); + + prop = of_get_property(pdev->dev.of_node, "core_conf", NULL); + if (!prop) { + dev_warn(&pdev->dev, "default core_conf used: lock-step\n"); + prop = "lock-step"; + } + + dev_info(&pdev->dev, "RPU core_conf: %s\n", prop); + if (!strcmp(prop, "split0")) { + local->rpu_mode = PM_RPU_MODE_SPLIT; + local->rpu_id = 0; + local->ipi_dest_mask = RPU_0_IPI_MASK; + } else if (!strcmp(prop, "split1")) { + local->rpu_mode = PM_RPU_MODE_SPLIT; + local->rpu_id = 1; + local->ipi_dest_mask = RPU_1_IPI_MASK; + } else if (!strcmp(prop, "lock-step")) { + local->rpu_mode = PM_RPU_MODE_LOCKSTEP; + local->rpu_id = 0; + local->ipi_dest_mask = RPU_0_IPI_MASK; + } else { + dev_err(&pdev->dev, "Invalid core_conf mode provided - %s , %d\n", + prop, local->rpu_mode); + ret = -EINVAL; + goto rproc_fault; + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ipi"); + if (res) { + local->ipi_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (IS_ERR(local->ipi_base)) { + pr_err("%s: Unable to map IPI\n", __func__); + ret = PTR_ERR(local->ipi_base); + goto rproc_fault; + } + } else { + dev_info(&pdev->dev, "IPI resource is not specified.\n"); + } + dev_dbg(&pdev->dev, "got ipi base address\n"); + + INIT_LIST_HEAD(&local->mems); + /* Get TCM memories */ + ret = zynqmp_r5_get_tcms(pdev, local); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get TCM memories.\n"); + goto rproc_fault; + } + dev_dbg(&pdev->dev, "got TCM memories\n"); + /* Get reserved memory regions for firmware */ + ret = zynqmp_r5_get_reserved_mems(pdev, local); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get reserved memories.\n"); + goto rproc_fault; + } + dev_dbg(&pdev->dev, "got reserved memories.\n"); + + /* Disable IPI before requesting IPI IRQ */ + disable_ipi(local); + INIT_WORK(&local->workqueue, handle_event_notified); + + /* IPI IRQ */ + if (local->ipi_base) { + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(&pdev->dev, "unable to find IPI IRQ\n"); + goto rproc_fault; + } + local->irq = ret; + ret = devm_request_irq(&pdev->dev, local->irq, + r5_remoteproc_interrupt, IRQF_SHARED, + dev_name(&pdev->dev), &pdev->dev); + if (ret) { + dev_err(&pdev->dev, "IRQ %d already allocated\n", + local->irq); + goto rproc_fault; + } + dev_dbg(&pdev->dev, "notification irq: %d\n", local->irq); + } + + ret = zynqmp_r5_rproc_init(local->rproc); + if (ret) { + dev_err(&pdev->dev, "failed to init ZynqMP R5 rproc\n"); + goto rproc_fault; + } + + rproc->auto_boot = autoboot; + + ret = rproc_add(local->rproc); + if (ret) { + dev_err(&pdev->dev, "rproc registration failed\n"); + goto rproc_fault; + } + + return ret; + +rproc_fault: + rproc_free(local->rproc); + + return ret; +} + +static int zynqmp_r5_remoteproc_remove(struct platform_device *pdev) +{ + struct rproc *rproc = platform_get_drvdata(pdev); + struct zynqmp_r5_rproc_pdata *local = rproc->priv; + struct rproc_mem_entry *mem; + + dev_info(&pdev->dev, "%s\n", __func__); + + rproc_del(rproc); + + list_for_each_entry(mem, &local->mems, node) { + if (mem->priv) + gen_pool_free((struct gen_pool *)mem->priv, + (unsigned long)mem->va, mem->len); + } + + r5_release_tcm(local); + of_reserved_mem_device_release(&pdev->dev); + rproc_free(rproc); + + return 0; +} + +/* Match table for OF platform binding */ +static const struct of_device_id zynqmp_r5_remoteproc_match[] = { + { .compatible = "xlnx,zynqmp-r5-remoteproc-1.0", }, + { /* end of list */ }, +}; +MODULE_DEVICE_TABLE(of, zynqmp_r5_remoteproc_match); + +static struct platform_driver zynqmp_r5_remoteproc_driver = { + .probe = zynqmp_r5_remoteproc_probe, + .remove = zynqmp_r5_remoteproc_remove, + .driver = { + .name = "zynqmp_r5_remoteproc", + .of_match_table = zynqmp_r5_remoteproc_match, + }, +}; +module_platform_driver(zynqmp_r5_remoteproc_driver); + +module_param_named(autoboot, autoboot, bool, 0444); +MODULE_PARM_DESC(autoboot, + "enable | disable autoboot. (default: true)"); + +MODULE_AUTHOR("Jason Wu <[email protected]>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ZynqMP R5 remote processor control driver"); -- 2.7.4
