147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2020 MediaTek Inc.
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*/
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#include <linux/module.h> /* needed by all modules */
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#include <linux/init.h> /* needed by module macros */
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#include <linux/fs.h> /* needed by file_operations* */
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#include <linux/miscdevice.h> /* needed by miscdevice* */
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#include <linux/sysfs.h>
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#include <linux/platform_device.h>
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#include <linux/device.h> /* needed by device_* */
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#include <linux/vmalloc.h> /* needed by vmalloc */
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#include <linux/uaccess.h> /* needed by copy_to_user */
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#include <linux/fs.h> /* needed by file_operations* */
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#include <linux/slab.h> /* needed by kmalloc */
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#include <linux/poll.h> /* needed by poll */
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#include <linux/mutex.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/suspend.h>
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#include <linux/timer.h>
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#include <linux/notifier.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/of_fdt.h>
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#include <linux/ioport.h>
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#ifdef wakelock
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#include <linux/wakelock.h>
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#endif
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#include <linux/io.h>
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#include <mt-plat/sync_write.h>
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#include <mt-plat/aee.h>
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#include <linux/delay.h>
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#include "adsp_feature_define.h"
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#include "adsp_ipi.h"
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#include "adsp_helper.h"
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#include "adsp_excep.h"
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#include "adsp_dvfs.h"
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#if ENABLE_ADSP_EMI_PROTECTION
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#include <mt_emi_api.h>
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#endif
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#ifdef CONFIG_ARM64
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#define IOMEM(a) ((void __force __iomem *)((a)))
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#endif
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#define INFRACFG_AO_NODE "mediatek,infracfg_ao"
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#define PERICFG_NODE "mediatek,pericfg"
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#define INFRA_AXI_PROT (adsp_common.infracfg_ao + 0x0220)
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#define INFRA_AXI_PROT_STA1 (adsp_common.infracfg_ao + 0x0228)
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#define INFRA_AXI_PROT_SET (adsp_common.infracfg_ao + 0x02A0)
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#define INFRA_AXI_PROT_CLR (adsp_common.infracfg_ao + 0x02A4)
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#define ADSP_AXI_PROT_MASK (0x1 << 15)
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#define ADSP_AXI_PROT_READY_MASK (0x1 << 15)
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#define ADSP_WAY_EN_CTRL (adsp_common.pericfg + 0x0240)
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#define ADSP_WAY_EN_MASK (0x1 << 13)
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#define adsp_reg_read(addr) __raw_readl(IOMEM(addr))
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#define adsp_reg_sync_write(addr, val) mt_reg_sync_writel(val, addr)
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#if ENABLE_ADSP_EMI_PROTECTION
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void set_adsp_mpu(phys_addr_t phys_addr, size_t size)
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{
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struct emi_region_info_t region_info;
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region_info.start = phys_addr;
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region_info.end = phys_addr + size - 0x1;
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region_info.region = MPU_REGION_ID_ADSP_SMEM;
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SET_ACCESS_PERMISSION(region_info.apc, UNLOCK,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
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FORBIDDEN, NO_PROTECTION, FORBIDDEN, FORBIDDEN,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION);
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emi_mpu_set_protection(®ion_info);
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}
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#endif
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int adsp_dts_mapping(void)
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{
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struct device_node *node;
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/* infracfg_ao */
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node = of_find_compatible_node(NULL, NULL, INFRACFG_AO_NODE);
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if (!node) {
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pr_info("error: cannot find node %s\n", INFRACFG_AO_NODE);
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return -1;
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}
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adsp_common.infracfg_ao = of_iomap(node, 0);
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if (IS_ERR(adsp_common.infracfg_ao)) {
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pr_info("error: cannot iomap infra cfg\n");
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return -1;
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}
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/* pericfg */
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node = of_find_compatible_node(NULL, NULL, PERICFG_NODE);
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if (!node) {
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pr_info("error: cannot find node %s\n", PERICFG_NODE);
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return -1;
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}
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adsp_common.pericfg = of_iomap(node, 0);
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if (IS_ERR(adsp_common.pericfg)) {
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pr_info("error: cannot iomap peri cfg\n");
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return -1;
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}
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return 0;
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}
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static bool is_adsp_bus_protect_ready(void)
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{
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return ((adsp_reg_read(INFRA_AXI_PROT_STA1) & ADSP_AXI_PROT_READY_MASK)
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== ADSP_AXI_PROT_READY_MASK);
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}
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void adsp_bus_sleep_protect(uint32_t enable)
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{
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int timeout = 1000;
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if (enable) {
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/* enable adsp bus protect */
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adsp_reg_sync_write(INFRA_AXI_PROT_SET, ADSP_AXI_PROT_MASK);
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while (--timeout && !is_adsp_bus_protect_ready())
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udelay(1);
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if (!is_adsp_bus_protect_ready())
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pr_err("%s() ready timeout\n", __func__);
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} else {
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/* disable adsp bus protect */
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adsp_reg_sync_write(INFRA_AXI_PROT_CLR, ADSP_AXI_PROT_MASK);
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}
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}
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void adsp_way_en_ctrl(uint32_t enable)
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{
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if (enable)
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adsp_reg_sync_write(ADSP_WAY_EN_CTRL,
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adsp_reg_read(ADSP_WAY_EN_CTRL) | ADSP_WAY_EN_MASK);
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else
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adsp_reg_sync_write(ADSP_WAY_EN_CTRL,
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adsp_reg_read(ADSP_WAY_EN_CTRL) & ~ADSP_WAY_EN_MASK);
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}
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