858 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			858 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
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| /*
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|  * Qualcomm Technology Inc. ADSP Peripheral Image Loader for SDM845.
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|  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
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|  */
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| 
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| #include <linux/clk.h>
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| #include <linux/delay.h>
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| #include <linux/firmware.h>
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| #include <linux/interrupt.h>
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| #include <linux/io.h>
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| #include <linux/iommu.h>
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| #include <linux/iopoll.h>
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| #include <linux/kernel.h>
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| #include <linux/mfd/syscon.h>
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| #include <linux/module.h>
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| #include <linux/of.h>
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| #include <linux/of_address.h>
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| #include <linux/platform_device.h>
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| #include <linux/pm_domain.h>
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| #include <linux/pm_runtime.h>
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| #include <linux/regmap.h>
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| #include <linux/remoteproc.h>
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| #include <linux/reset.h>
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| #include <linux/soc/qcom/mdt_loader.h>
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| #include <linux/soc/qcom/smem.h>
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| #include <linux/soc/qcom/smem_state.h>
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| 
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| #include "qcom_common.h"
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| #include "qcom_pil_info.h"
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| #include "qcom_q6v5.h"
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| #include "remoteproc_internal.h"
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| 
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| /* time out value */
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| #define ACK_TIMEOUT			1000
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| #define ACK_TIMEOUT_US			1000000
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| #define BOOT_FSM_TIMEOUT		10000
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| /* mask values */
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| #define EVB_MASK			GENMASK(27, 4)
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| /*QDSP6SS register offsets*/
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| #define RST_EVB_REG			0x10
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| #define CORE_START_REG			0x400
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| #define BOOT_CMD_REG			0x404
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| #define BOOT_STATUS_REG			0x408
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| #define RET_CFG_REG			0x1C
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| /*TCSR register offsets*/
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| #define LPASS_MASTER_IDLE_REG		0x8
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| #define LPASS_HALTACK_REG		0x4
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| #define LPASS_PWR_ON_REG		0x10
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| #define LPASS_HALTREQ_REG		0x0
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| 
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| #define SID_MASK_DEFAULT        0xF
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| 
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| #define QDSP6SS_XO_CBCR		0x38
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| #define QDSP6SS_CORE_CBCR	0x20
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| #define QDSP6SS_SLEEP_CBCR	0x3c
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| 
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| #define LPASS_BOOT_CORE_START	BIT(0)
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| #define LPASS_BOOT_CMD_START	BIT(0)
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| #define LPASS_EFUSE_Q6SS_EVB_SEL 0x0
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| 
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| struct adsp_pil_data {
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| 	int crash_reason_smem;
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| 	const char *firmware_name;
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| 
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| 	const char *ssr_name;
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| 	const char *sysmon_name;
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| 	int ssctl_id;
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| 	bool is_wpss;
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| 	bool has_iommu;
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| 	bool auto_boot;
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| 
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| 	const char **clk_ids;
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| 	int num_clks;
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| 	const char **pd_names;
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| 	unsigned int num_pds;
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| 	const char *load_state;
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| };
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| 
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| struct qcom_adsp {
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| 	struct device *dev;
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| 	struct rproc *rproc;
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| 
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| 	struct qcom_q6v5 q6v5;
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| 
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| 	struct clk *xo;
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| 
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| 	int num_clks;
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| 	struct clk_bulk_data *clks;
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| 
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| 	void __iomem *qdsp6ss_base;
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| 	void __iomem *lpass_efuse;
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| 
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| 	struct reset_control *pdc_sync_reset;
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| 	struct reset_control *restart;
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| 
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| 	struct regmap *halt_map;
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| 	unsigned int halt_lpass;
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| 
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| 	int crash_reason_smem;
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| 	const char *info_name;
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| 
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| 	struct completion start_done;
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| 	struct completion stop_done;
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| 
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| 	phys_addr_t mem_phys;
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| 	phys_addr_t mem_reloc;
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| 	void *mem_region;
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| 	size_t mem_size;
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| 	bool has_iommu;
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| 
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| 	struct dev_pm_domain_list *pd_list;
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| 
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| 	struct qcom_rproc_glink glink_subdev;
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| 	struct qcom_rproc_ssr ssr_subdev;
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| 	struct qcom_sysmon *sysmon;
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| 
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| 	int (*shutdown)(struct qcom_adsp *adsp);
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| };
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| 
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| static int qcom_rproc_pds_attach(struct qcom_adsp *adsp, const char **pd_names,
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| 				 unsigned int num_pds)
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| {
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| 	struct device *dev = adsp->dev;
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| 	struct dev_pm_domain_attach_data pd_data = {
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| 		.pd_names = pd_names,
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| 		.num_pd_names = num_pds,
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| 	};
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| 	int ret;
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| 
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| 	/* Handle single power domain */
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| 	if (dev->pm_domain)
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| 		goto out;
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| 
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| 	if (!pd_names)
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| 		return 0;
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| 
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| 	ret = dev_pm_domain_attach_list(dev, &pd_data, &adsp->pd_list);
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| 	if (ret < 0)
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| 		return ret;
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| 
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| out:
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| 	pm_runtime_enable(dev);
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| 	return 0;
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| }
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| 
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| static void qcom_rproc_pds_detach(struct qcom_adsp *adsp)
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| {
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| 	struct device *dev = adsp->dev;
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| 	struct dev_pm_domain_list *pds = adsp->pd_list;
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| 
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| 	dev_pm_domain_detach_list(pds);
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| 
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| 	if (dev->pm_domain || pds)
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| 		pm_runtime_disable(adsp->dev);
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| }
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| 
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| static int qcom_rproc_pds_enable(struct qcom_adsp *adsp)
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| {
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| 	struct device *dev = adsp->dev;
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| 	struct dev_pm_domain_list *pds = adsp->pd_list;
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| 	int ret, i = 0;
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| 
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| 	if (!dev->pm_domain && !pds)
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| 		return 0;
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| 
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| 	if (dev->pm_domain)
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| 		dev_pm_genpd_set_performance_state(dev, INT_MAX);
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| 
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| 	while (pds && i < pds->num_pds) {
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| 		dev_pm_genpd_set_performance_state(pds->pd_devs[i], INT_MAX);
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| 		i++;
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| 	}
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| 
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| 	ret = pm_runtime_resume_and_get(dev);
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| 	if (ret < 0) {
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| 		while (pds && i > 0) {
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| 			i--;
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| 			dev_pm_genpd_set_performance_state(pds->pd_devs[i], 0);
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| 		}
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| 
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| 		if (dev->pm_domain)
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| 			dev_pm_genpd_set_performance_state(dev, 0);
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| 	}
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| 
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| 	return ret;
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| }
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| 
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| static void qcom_rproc_pds_disable(struct qcom_adsp *adsp)
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| {
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| 	struct device *dev = adsp->dev;
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| 	struct dev_pm_domain_list *pds = adsp->pd_list;
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| 	int i = 0;
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| 
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| 	if (!dev->pm_domain && !pds)
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| 		return;
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| 
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| 	if (dev->pm_domain)
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| 		dev_pm_genpd_set_performance_state(dev, 0);
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| 
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| 	while (pds && i < pds->num_pds) {
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| 		dev_pm_genpd_set_performance_state(pds->pd_devs[i], 0);
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| 		i++;
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| 	}
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| 
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| 	pm_runtime_put(dev);
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| }
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| 
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| static int qcom_wpss_shutdown(struct qcom_adsp *adsp)
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| {
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| 	unsigned int val;
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| 
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| 	regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 1);
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| 
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| 	/* Wait for halt ACK from QDSP6 */
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| 	regmap_read_poll_timeout(adsp->halt_map,
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| 				 adsp->halt_lpass + LPASS_HALTACK_REG, val,
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| 				 val, 1000, ACK_TIMEOUT_US);
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| 
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| 	/* Assert the WPSS PDC Reset */
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| 	reset_control_assert(adsp->pdc_sync_reset);
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| 
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| 	/* Place the WPSS processor into reset */
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| 	reset_control_assert(adsp->restart);
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| 
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| 	/* wait after asserting subsystem restart from AOSS */
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| 	usleep_range(200, 205);
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| 
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| 	/* Remove the WPSS reset */
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| 	reset_control_deassert(adsp->restart);
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| 
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| 	/* De-assert the WPSS PDC Reset */
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| 	reset_control_deassert(adsp->pdc_sync_reset);
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| 
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| 	usleep_range(100, 105);
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| 
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| 	clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks);
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| 
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| 	regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 0);
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| 
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| 	/* Wait for halt ACK from QDSP6 */
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| 	regmap_read_poll_timeout(adsp->halt_map,
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| 				 adsp->halt_lpass + LPASS_HALTACK_REG, val,
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| 				 !val, 1000, ACK_TIMEOUT_US);
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| 
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| 	return 0;
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| }
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| 
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| static int qcom_adsp_shutdown(struct qcom_adsp *adsp)
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| {
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| 	unsigned long timeout;
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| 	unsigned int val;
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| 	int ret;
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| 
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| 	/* Reset the retention logic */
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| 	val = readl(adsp->qdsp6ss_base + RET_CFG_REG);
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| 	val |= 0x1;
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| 	writel(val, adsp->qdsp6ss_base + RET_CFG_REG);
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| 
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| 	clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks);
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| 
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| 	/* QDSP6 master port needs to be explicitly halted */
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| 	ret = regmap_read(adsp->halt_map,
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| 			adsp->halt_lpass + LPASS_PWR_ON_REG, &val);
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| 	if (ret || !val)
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| 		goto reset;
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| 
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| 	ret = regmap_read(adsp->halt_map,
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| 			adsp->halt_lpass + LPASS_MASTER_IDLE_REG,
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| 			&val);
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| 	if (ret || val)
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| 		goto reset;
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| 
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| 	regmap_write(adsp->halt_map,
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| 			adsp->halt_lpass + LPASS_HALTREQ_REG, 1);
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| 
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| 	/* Wait for halt ACK from QDSP6 */
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| 	timeout = jiffies + msecs_to_jiffies(ACK_TIMEOUT);
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| 	for (;;) {
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| 		ret = regmap_read(adsp->halt_map,
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| 			adsp->halt_lpass + LPASS_HALTACK_REG, &val);
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| 		if (ret || val || time_after(jiffies, timeout))
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| 			break;
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| 
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| 		usleep_range(1000, 1100);
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| 	}
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| 
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| 	ret = regmap_read(adsp->halt_map,
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| 			adsp->halt_lpass + LPASS_MASTER_IDLE_REG, &val);
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| 	if (ret || !val)
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| 		dev_err(adsp->dev, "port failed halt\n");
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| 
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| reset:
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| 	/* Assert the LPASS PDC Reset */
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| 	reset_control_assert(adsp->pdc_sync_reset);
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| 	/* Place the LPASS processor into reset */
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| 	reset_control_assert(adsp->restart);
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| 	/* wait after asserting subsystem restart from AOSS */
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| 	usleep_range(200, 300);
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| 
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| 	/* Clear the halt request for the AXIM and AHBM for Q6 */
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| 	regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 0);
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| 
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| 	/* De-assert the LPASS PDC Reset */
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| 	reset_control_deassert(adsp->pdc_sync_reset);
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| 	/* Remove the LPASS reset */
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| 	reset_control_deassert(adsp->restart);
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| 	/* wait after de-asserting subsystem restart from AOSS */
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| 	usleep_range(200, 300);
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| 
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| 	return 0;
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| }
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| 
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| static int adsp_load(struct rproc *rproc, const struct firmware *fw)
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| {
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| 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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| 	int ret;
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| 
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| 	ret = qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, 0,
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| 				    adsp->mem_region, adsp->mem_phys,
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| 				    adsp->mem_size, &adsp->mem_reloc);
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| 	if (ret)
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| 		return ret;
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| 
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| 	qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size);
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| 
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| 	return 0;
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| }
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| 
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| static void adsp_unmap_carveout(struct rproc *rproc)
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| {
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| 	struct qcom_adsp *adsp = rproc->priv;
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| 
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| 	if (adsp->has_iommu)
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| 		iommu_unmap(rproc->domain, adsp->mem_phys, adsp->mem_size);
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| }
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| 
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| static int adsp_map_carveout(struct rproc *rproc)
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| {
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| 	struct qcom_adsp *adsp = rproc->priv;
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| 	struct of_phandle_args args;
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| 	long long sid;
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| 	unsigned long iova;
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| 	int ret;
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| 
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| 	if (!adsp->has_iommu)
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| 		return 0;
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| 
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| 	if (!rproc->domain)
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| 		return -EINVAL;
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| 
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| 	ret = of_parse_phandle_with_args(adsp->dev->of_node, "iommus", "#iommu-cells", 0, &args);
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| 	if (ret < 0)
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| 		return ret;
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| 
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| 	sid = args.args[0] & SID_MASK_DEFAULT;
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| 
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| 	/* Add SID configuration for ADSP Firmware to SMMU */
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| 	iova =  adsp->mem_phys | (sid << 32);
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| 
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| 	ret = iommu_map(rproc->domain, iova, adsp->mem_phys,
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| 			adsp->mem_size,	IOMMU_READ | IOMMU_WRITE,
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| 			GFP_KERNEL);
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| 	if (ret) {
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| 		dev_err(adsp->dev, "Unable to map ADSP Physical Memory\n");
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| 		return ret;
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| 	}
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| 
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| 	return 0;
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| }
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| 
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| static int adsp_start(struct rproc *rproc)
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| {
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| 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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| 	int ret;
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| 	unsigned int val;
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| 
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| 	ret = qcom_q6v5_prepare(&adsp->q6v5);
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| 	if (ret)
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| 		return ret;
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| 
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| 	ret = adsp_map_carveout(rproc);
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| 	if (ret) {
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| 		dev_err(adsp->dev, "ADSP smmu mapping failed\n");
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| 		goto disable_irqs;
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| 	}
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| 
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| 	ret = clk_prepare_enable(adsp->xo);
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| 	if (ret)
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| 		goto adsp_smmu_unmap;
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| 
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| 	ret = qcom_rproc_pds_enable(adsp);
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| 	if (ret < 0)
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| 		goto disable_xo_clk;
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| 
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| 	ret = clk_bulk_prepare_enable(adsp->num_clks, adsp->clks);
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| 	if (ret) {
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| 		dev_err(adsp->dev, "adsp clk_enable failed\n");
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| 		goto disable_power_domain;
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| 	}
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| 
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| 	/* Enable the XO clock */
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| 	writel(1, adsp->qdsp6ss_base + QDSP6SS_XO_CBCR);
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| 
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| 	/* Enable the QDSP6SS sleep clock */
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| 	writel(1, adsp->qdsp6ss_base + QDSP6SS_SLEEP_CBCR);
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| 
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| 	/* Enable the QDSP6 core clock */
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| 	writel(1, adsp->qdsp6ss_base + QDSP6SS_CORE_CBCR);
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| 
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| 	/* Program boot address */
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| 	writel(adsp->mem_phys >> 4, adsp->qdsp6ss_base + RST_EVB_REG);
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| 
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| 	if (adsp->lpass_efuse)
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| 		writel(LPASS_EFUSE_Q6SS_EVB_SEL, adsp->lpass_efuse);
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| 
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| 	/* De-assert QDSP6 stop core. QDSP6 will execute after out of reset */
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| 	writel(LPASS_BOOT_CORE_START, adsp->qdsp6ss_base + CORE_START_REG);
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| 
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| 	/* Trigger boot FSM to start QDSP6 */
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| 	writel(LPASS_BOOT_CMD_START, adsp->qdsp6ss_base + BOOT_CMD_REG);
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| 
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| 	/* Wait for core to come out of reset */
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| 	ret = readl_poll_timeout(adsp->qdsp6ss_base + BOOT_STATUS_REG,
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| 			val, (val & BIT(0)) != 0, 10, BOOT_FSM_TIMEOUT);
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| 	if (ret) {
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| 		dev_err(adsp->dev, "failed to bootup adsp\n");
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| 		goto disable_adsp_clks;
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| 	}
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| 
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| 	ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5 * HZ));
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| 	if (ret == -ETIMEDOUT) {
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| 		dev_err(adsp->dev, "start timed out\n");
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| 		goto disable_adsp_clks;
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| 	}
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| 
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| 	return 0;
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| 
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| disable_adsp_clks:
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| 	clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks);
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| disable_power_domain:
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| 	qcom_rproc_pds_disable(adsp);
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| disable_xo_clk:
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| 	clk_disable_unprepare(adsp->xo);
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| adsp_smmu_unmap:
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| 	adsp_unmap_carveout(rproc);
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| disable_irqs:
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| 	qcom_q6v5_unprepare(&adsp->q6v5);
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| 
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| 	return ret;
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| }
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| 
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| static void qcom_adsp_pil_handover(struct qcom_q6v5 *q6v5)
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| {
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| 	struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5);
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| 
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| 	clk_disable_unprepare(adsp->xo);
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| 	qcom_rproc_pds_disable(adsp);
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| }
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| 
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| static int adsp_stop(struct rproc *rproc)
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| {
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| 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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| 	int handover;
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| 	int ret;
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| 
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| 	ret = qcom_q6v5_request_stop(&adsp->q6v5, adsp->sysmon);
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| 	if (ret == -ETIMEDOUT)
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| 		dev_err(adsp->dev, "timed out on wait\n");
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| 
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| 	ret = adsp->shutdown(adsp);
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| 	if (ret)
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| 		dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
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| 
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| 	adsp_unmap_carveout(rproc);
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| 
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| 	handover = qcom_q6v5_unprepare(&adsp->q6v5);
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| 	if (handover)
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| 		qcom_adsp_pil_handover(&adsp->q6v5);
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| 
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| 	return ret;
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| }
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| 
 | |
| static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
 | |
| {
 | |
| 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
 | |
| 	int offset;
 | |
| 
 | |
| 	offset = da - adsp->mem_reloc;
 | |
| 	if (offset < 0 || offset + len > adsp->mem_size)
 | |
| 		return NULL;
 | |
| 
 | |
| 	return adsp->mem_region + offset;
 | |
| }
 | |
| 
 | |
| static int adsp_parse_firmware(struct rproc *rproc, const struct firmware *fw)
 | |
| {
 | |
| 	struct qcom_adsp *adsp = rproc->priv;
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = qcom_register_dump_segments(rproc, fw);
 | |
| 	if (ret) {
 | |
| 		dev_err(&rproc->dev, "Error in registering dump segments\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	if (adsp->has_iommu) {
 | |
| 		ret = rproc_elf_load_rsc_table(rproc, fw);
 | |
| 		if (ret) {
 | |
| 			dev_err(&rproc->dev, "Error in loading resource table\n");
 | |
| 			return ret;
 | |
| 		}
 | |
| 	}
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static unsigned long adsp_panic(struct rproc *rproc)
 | |
| {
 | |
| 	struct qcom_adsp *adsp = rproc->priv;
 | |
| 
 | |
| 	return qcom_q6v5_panic(&adsp->q6v5);
 | |
| }
 | |
| 
 | |
| static const struct rproc_ops adsp_ops = {
 | |
| 	.start = adsp_start,
 | |
| 	.stop = adsp_stop,
 | |
| 	.da_to_va = adsp_da_to_va,
 | |
| 	.parse_fw = adsp_parse_firmware,
 | |
| 	.load = adsp_load,
 | |
| 	.panic = adsp_panic,
 | |
| };
 | |
| 
 | |
| static int adsp_init_clock(struct qcom_adsp *adsp, const char **clk_ids)
 | |
| {
 | |
| 	int num_clks = 0;
 | |
| 	int i, ret;
 | |
| 
 | |
| 	adsp->xo = devm_clk_get(adsp->dev, "xo");
 | |
| 	if (IS_ERR(adsp->xo)) {
 | |
| 		ret = PTR_ERR(adsp->xo);
 | |
| 		if (ret != -EPROBE_DEFER)
 | |
| 			dev_err(adsp->dev, "failed to get xo clock");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	for (i = 0; clk_ids[i]; i++)
 | |
| 		num_clks++;
 | |
| 
 | |
| 	adsp->num_clks = num_clks;
 | |
| 	adsp->clks = devm_kcalloc(adsp->dev, adsp->num_clks,
 | |
| 				sizeof(*adsp->clks), GFP_KERNEL);
 | |
| 	if (!adsp->clks)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	for (i = 0; i < adsp->num_clks; i++)
 | |
| 		adsp->clks[i].id = clk_ids[i];
 | |
| 
 | |
| 	return devm_clk_bulk_get(adsp->dev, adsp->num_clks, adsp->clks);
 | |
| }
 | |
| 
 | |
| static int adsp_init_reset(struct qcom_adsp *adsp)
 | |
| {
 | |
| 	adsp->pdc_sync_reset = devm_reset_control_get_optional_exclusive(adsp->dev,
 | |
| 			"pdc_sync");
 | |
| 	if (IS_ERR(adsp->pdc_sync_reset)) {
 | |
| 		dev_err(adsp->dev, "failed to acquire pdc_sync reset\n");
 | |
| 		return PTR_ERR(adsp->pdc_sync_reset);
 | |
| 	}
 | |
| 
 | |
| 	adsp->restart = devm_reset_control_get_optional_exclusive(adsp->dev, "restart");
 | |
| 
 | |
| 	/* Fall back to the  old "cc_lpass" if "restart" is absent */
 | |
| 	if (!adsp->restart)
 | |
| 		adsp->restart = devm_reset_control_get_exclusive(adsp->dev, "cc_lpass");
 | |
| 
 | |
| 	if (IS_ERR(adsp->restart)) {
 | |
| 		dev_err(adsp->dev, "failed to acquire restart\n");
 | |
| 		return PTR_ERR(adsp->restart);
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int adsp_init_mmio(struct qcom_adsp *adsp,
 | |
| 				struct platform_device *pdev)
 | |
| {
 | |
| 	struct resource *efuse_region;
 | |
| 	struct device_node *syscon;
 | |
| 	int ret;
 | |
| 
 | |
| 	adsp->qdsp6ss_base = devm_platform_ioremap_resource(pdev, 0);
 | |
| 	if (IS_ERR(adsp->qdsp6ss_base)) {
 | |
| 		dev_err(adsp->dev, "failed to map QDSP6SS registers\n");
 | |
| 		return PTR_ERR(adsp->qdsp6ss_base);
 | |
| 	}
 | |
| 
 | |
| 	efuse_region = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 | |
| 	if (!efuse_region) {
 | |
| 		adsp->lpass_efuse = NULL;
 | |
| 		dev_dbg(adsp->dev, "failed to get efuse memory region\n");
 | |
| 	} else {
 | |
| 		adsp->lpass_efuse = devm_ioremap_resource(&pdev->dev, efuse_region);
 | |
| 		if (IS_ERR(adsp->lpass_efuse)) {
 | |
| 			dev_err(adsp->dev, "failed to map efuse registers\n");
 | |
| 			return PTR_ERR(adsp->lpass_efuse);
 | |
| 		}
 | |
| 	}
 | |
| 	syscon = of_parse_phandle(pdev->dev.of_node, "qcom,halt-regs", 0);
 | |
| 	if (!syscon) {
 | |
| 		dev_err(&pdev->dev, "failed to parse qcom,halt-regs\n");
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	adsp->halt_map = syscon_node_to_regmap(syscon);
 | |
| 	of_node_put(syscon);
 | |
| 	if (IS_ERR(adsp->halt_map))
 | |
| 		return PTR_ERR(adsp->halt_map);
 | |
| 
 | |
| 	ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,halt-regs",
 | |
| 			1, &adsp->halt_lpass);
 | |
| 	if (ret < 0) {
 | |
| 		dev_err(&pdev->dev, "no offset in syscon\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
 | |
| {
 | |
| 	struct device_node *node;
 | |
| 	struct resource r;
 | |
| 	int ret;
 | |
| 
 | |
| 	node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
 | |
| 	if (!node) {
 | |
| 		dev_err(adsp->dev, "no memory-region specified\n");
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	ret = of_address_to_resource(node, 0, &r);
 | |
| 	of_node_put(node);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	adsp->mem_phys = adsp->mem_reloc = r.start;
 | |
| 	adsp->mem_size = resource_size(&r);
 | |
| 	adsp->mem_region = devm_ioremap_wc(adsp->dev,
 | |
| 				adsp->mem_phys, adsp->mem_size);
 | |
| 	if (!adsp->mem_region) {
 | |
| 		dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
 | |
| 			&r.start, adsp->mem_size);
 | |
| 		return -EBUSY;
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int adsp_probe(struct platform_device *pdev)
 | |
| {
 | |
| 	const struct adsp_pil_data *desc;
 | |
| 	const char *firmware_name;
 | |
| 	struct qcom_adsp *adsp;
 | |
| 	struct rproc *rproc;
 | |
| 	int ret;
 | |
| 
 | |
| 	desc = of_device_get_match_data(&pdev->dev);
 | |
| 	if (!desc)
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	firmware_name = desc->firmware_name;
 | |
| 	ret = of_property_read_string(pdev->dev.of_node, "firmware-name",
 | |
| 				      &firmware_name);
 | |
| 	if (ret < 0 && ret != -EINVAL) {
 | |
| 		dev_err(&pdev->dev, "unable to read firmware-name\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
 | |
| 			    firmware_name, sizeof(*adsp));
 | |
| 	if (!rproc) {
 | |
| 		dev_err(&pdev->dev, "unable to allocate remoteproc\n");
 | |
| 		return -ENOMEM;
 | |
| 	}
 | |
| 
 | |
| 	rproc->auto_boot = desc->auto_boot;
 | |
| 	rproc->has_iommu = desc->has_iommu;
 | |
| 	rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE);
 | |
| 
 | |
| 	adsp = (struct qcom_adsp *)rproc->priv;
 | |
| 	adsp->dev = &pdev->dev;
 | |
| 	adsp->rproc = rproc;
 | |
| 	adsp->info_name = desc->sysmon_name;
 | |
| 	adsp->has_iommu = desc->has_iommu;
 | |
| 
 | |
| 	platform_set_drvdata(pdev, adsp);
 | |
| 
 | |
| 	if (desc->is_wpss)
 | |
| 		adsp->shutdown = qcom_wpss_shutdown;
 | |
| 	else
 | |
| 		adsp->shutdown = qcom_adsp_shutdown;
 | |
| 
 | |
| 	ret = adsp_alloc_memory_region(adsp);
 | |
| 	if (ret)
 | |
| 		goto free_rproc;
 | |
| 
 | |
| 	ret = adsp_init_clock(adsp, desc->clk_ids);
 | |
| 	if (ret)
 | |
| 		goto free_rproc;
 | |
| 
 | |
| 	ret = qcom_rproc_pds_attach(adsp, desc->pd_names, desc->num_pds);
 | |
| 	if (ret < 0) {
 | |
| 		dev_err(&pdev->dev, "Failed to attach proxy power domains\n");
 | |
| 		goto free_rproc;
 | |
| 	}
 | |
| 
 | |
| 	ret = adsp_init_reset(adsp);
 | |
| 	if (ret)
 | |
| 		goto disable_pm;
 | |
| 
 | |
| 	ret = adsp_init_mmio(adsp, pdev);
 | |
| 	if (ret)
 | |
| 		goto disable_pm;
 | |
| 
 | |
| 	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
 | |
| 			     desc->load_state, qcom_adsp_pil_handover);
 | |
| 	if (ret)
 | |
| 		goto disable_pm;
 | |
| 
 | |
| 	qcom_add_glink_subdev(rproc, &adsp->glink_subdev, desc->ssr_name);
 | |
| 	qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name);
 | |
| 	adsp->sysmon = qcom_add_sysmon_subdev(rproc,
 | |
| 					      desc->sysmon_name,
 | |
| 					      desc->ssctl_id);
 | |
| 	if (IS_ERR(adsp->sysmon)) {
 | |
| 		ret = PTR_ERR(adsp->sysmon);
 | |
| 		goto disable_pm;
 | |
| 	}
 | |
| 
 | |
| 	ret = rproc_add(rproc);
 | |
| 	if (ret)
 | |
| 		goto disable_pm;
 | |
| 
 | |
| 	return 0;
 | |
| 
 | |
| disable_pm:
 | |
| 	qcom_rproc_pds_detach(adsp);
 | |
| 
 | |
| free_rproc:
 | |
| 	rproc_free(rproc);
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static int adsp_remove(struct platform_device *pdev)
 | |
| {
 | |
| 	struct qcom_adsp *adsp = platform_get_drvdata(pdev);
 | |
| 
 | |
| 	rproc_del(adsp->rproc);
 | |
| 
 | |
| 	qcom_q6v5_deinit(&adsp->q6v5);
 | |
| 	qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
 | |
| 	qcom_remove_sysmon_subdev(adsp->sysmon);
 | |
| 	qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
 | |
| 	qcom_rproc_pds_detach(adsp);
 | |
| 	rproc_free(adsp->rproc);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static const struct adsp_pil_data adsp_resource_init = {
 | |
| 	.crash_reason_smem = 423,
 | |
| 	.firmware_name = "adsp.mdt",
 | |
| 	.ssr_name = "lpass",
 | |
| 	.sysmon_name = "adsp",
 | |
| 	.ssctl_id = 0x14,
 | |
| 	.is_wpss = false,
 | |
| 	.auto_boot = true,
 | |
| 	.clk_ids = (const char*[]) {
 | |
| 		"sway_cbcr", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr",
 | |
| 		"qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core", NULL
 | |
| 	},
 | |
| 	.num_clks = 7,
 | |
| 	.pd_names = (const char*[]) { "cx" },
 | |
| 	.num_pds = 1,
 | |
| };
 | |
| 
 | |
| static const struct adsp_pil_data adsp_sc7280_resource_init = {
 | |
| 	.crash_reason_smem = 423,
 | |
| 	.firmware_name = "adsp.pbn",
 | |
| 	.load_state = "adsp",
 | |
| 	.ssr_name = "lpass",
 | |
| 	.sysmon_name = "adsp",
 | |
| 	.ssctl_id = 0x14,
 | |
| 	.has_iommu = true,
 | |
| 	.auto_boot = true,
 | |
| 	.clk_ids = (const char*[]) {
 | |
| 		"gcc_cfg_noc_lpass", NULL
 | |
| 	},
 | |
| 	.num_clks = 1,
 | |
| };
 | |
| 
 | |
| static const struct adsp_pil_data cdsp_resource_init = {
 | |
| 	.crash_reason_smem = 601,
 | |
| 	.firmware_name = "cdsp.mdt",
 | |
| 	.ssr_name = "cdsp",
 | |
| 	.sysmon_name = "cdsp",
 | |
| 	.ssctl_id = 0x17,
 | |
| 	.is_wpss = false,
 | |
| 	.auto_boot = true,
 | |
| 	.clk_ids = (const char*[]) {
 | |
| 		"sway", "tbu", "bimc", "ahb_aon", "q6ss_slave", "q6ss_master",
 | |
| 		"q6_axim", NULL
 | |
| 	},
 | |
| 	.num_clks = 7,
 | |
| 	.pd_names = (const char*[]) { "cx" },
 | |
| 	.num_pds = 1,
 | |
| };
 | |
| 
 | |
| static const struct adsp_pil_data wpss_resource_init = {
 | |
| 	.crash_reason_smem = 626,
 | |
| 	.firmware_name = "wpss.mdt",
 | |
| 	.ssr_name = "wpss",
 | |
| 	.sysmon_name = "wpss",
 | |
| 	.ssctl_id = 0x19,
 | |
| 	.is_wpss = true,
 | |
| 	.auto_boot = false,
 | |
| 	.load_state = "wpss",
 | |
| 	.clk_ids = (const char*[]) {
 | |
| 		"ahb_bdg", "ahb", "rscp", NULL
 | |
| 	},
 | |
| 	.num_clks = 3,
 | |
| 	.pd_names = (const char*[]) { "cx", "mx" },
 | |
| 	.num_pds = 2,
 | |
| };
 | |
| 
 | |
| static const struct of_device_id adsp_of_match[] = {
 | |
| 	{ .compatible = "qcom,qcs404-cdsp-pil", .data = &cdsp_resource_init },
 | |
| 	{ .compatible = "qcom,sc7280-adsp-pil", .data = &adsp_sc7280_resource_init },
 | |
| 	{ .compatible = "qcom,sc7280-wpss-pil", .data = &wpss_resource_init },
 | |
| 	{ .compatible = "qcom,sdm845-adsp-pil", .data = &adsp_resource_init },
 | |
| 	{ },
 | |
| };
 | |
| MODULE_DEVICE_TABLE(of, adsp_of_match);
 | |
| 
 | |
| static struct platform_driver adsp_pil_driver = {
 | |
| 	.probe = adsp_probe,
 | |
| 	.remove = adsp_remove,
 | |
| 	.driver = {
 | |
| 		.name = "qcom_q6v5_adsp",
 | |
| 		.of_match_table = adsp_of_match,
 | |
| 	},
 | |
| };
 | |
| 
 | |
| module_platform_driver(adsp_pil_driver);
 | |
| MODULE_DESCRIPTION("QTI SDM845 ADSP Peripheral Image Loader");
 | |
| MODULE_LICENSE("GPL v2");
 |