Lines Matching defs:scp
40 scp_node = of_parse_phandle(dev->of_node, "mediatek,scp", 0);
61 * @scp: mtk_scp structure from scp_get().
63 void scp_put(struct mtk_scp *scp)
65 put_device(scp->dev);
69 static void scp_wdt_handler(struct mtk_scp *scp, u32 scp_to_host)
71 dev_err(scp->dev, "SCP watchdog timeout! 0x%x", scp_to_host);
72 rproc_report_crash(scp->rproc, RPROC_WATCHDOG);
77 struct mtk_scp *scp = (struct mtk_scp *)priv;
80 scp->run.signaled = run->signaled;
81 strscpy(scp->run.fw_ver, run->fw_ver, SCP_FW_VER_LEN);
82 scp->run.dec_capability = run->dec_capability;
83 scp->run.enc_capability = run->enc_capability;
84 wake_up_interruptible(&scp->run.wq);
87 static void scp_ipi_handler(struct mtk_scp *scp)
89 struct mtk_share_obj __iomem *rcv_obj = scp->recv_buf;
90 struct scp_ipi_desc *ipi_desc = scp->ipi_desc;
97 dev_err(scp->dev, "ipi message too long (len %d, max %d)", len,
102 dev_err(scp->dev, "No such ipi id = %d\n", id);
106 scp_ipi_lock(scp, id);
109 dev_err(scp->dev, "No such ipi id = %d\n", id);
110 scp_ipi_unlock(scp, id);
116 scp_ipi_unlock(scp, id);
118 scp->ipi_id_ack[id] = true;
119 wake_up(&scp->ack_wq);
122 static int scp_ipi_init(struct mtk_scp *scp)
128 scp->recv_buf =
129 (struct mtk_share_obj __iomem *)(scp->sram_base + recv_offset);
130 scp->send_buf =
131 (struct mtk_share_obj __iomem *)(scp->sram_base + send_offset);
132 memset_io(scp->recv_buf, 0, sizeof(*scp->recv_buf));
133 memset_io(scp->send_buf, 0, sizeof(*scp->send_buf));
138 static void mt8183_scp_reset_assert(struct mtk_scp *scp)
142 val = readl(scp->reg_base + MT8183_SW_RSTN);
144 writel(val, scp->reg_base + MT8183_SW_RSTN);
147 static void mt8183_scp_reset_deassert(struct mtk_scp *scp)
151 val = readl(scp->reg_base + MT8183_SW_RSTN);
153 writel(val, scp->reg_base + MT8183_SW_RSTN);
156 static void mt8192_scp_reset_assert(struct mtk_scp *scp)
158 writel(1, scp->reg_base + MT8192_CORE0_SW_RSTN_SET);
161 static void mt8192_scp_reset_deassert(struct mtk_scp *scp)
163 writel(1, scp->reg_base + MT8192_CORE0_SW_RSTN_CLR);
166 static void mt8183_scp_irq_handler(struct mtk_scp *scp)
170 scp_to_host = readl(scp->reg_base + MT8183_SCP_TO_HOST);
172 scp_ipi_handler(scp);
174 scp_wdt_handler(scp, scp_to_host);
178 scp->reg_base + MT8183_SCP_TO_HOST);
181 static void mt8192_scp_irq_handler(struct mtk_scp *scp)
185 scp_to_host = readl(scp->reg_base + MT8192_SCP2APMCU_IPC_SET);
188 scp_ipi_handler(scp);
195 scp->reg_base + MT8192_SCP2APMCU_IPC_CLR);
197 scp_wdt_handler(scp, scp_to_host);
198 writel(1, scp->reg_base + MT8192_CORE0_WDT_IRQ);
204 struct mtk_scp *scp = priv;
207 ret = clk_prepare_enable(scp->clk);
209 dev_err(scp->dev, "failed to enable clocks\n");
213 scp->data->scp_irq_handler(scp);
215 clk_disable_unprepare(scp->clk);
276 static int mt8183_scp_before_load(struct mtk_scp *scp)
279 writel(MT8183_SCP_IPC_INT_BIT, scp->reg_base + MT8183_SCP_TO_HOST);
282 writel(0x0, scp->reg_base + MT8183_SCP_CLK_SW_SEL);
283 writel(0x0, scp->reg_base + MT8183_SCP_CLK_DIV_SEL);
286 writel(0x0, scp->reg_base + MT8183_SCP_L1_SRAM_PD);
287 writel(0x0, scp->reg_base + MT8183_SCP_TCM_TAIL_SRAM_PD);
290 writel(0x0, scp->reg_base + MT8183_SCP_SRAM_PDN);
297 scp->reg_base + MT8183_SCP_CACHE_CON);
298 writel(MT8183_SCP_CACHESIZE_8KB, scp->reg_base + MT8183_SCP_DCACHE_CON);
321 static int mt8192_scp_before_load(struct mtk_scp *scp)
324 writel(0xff, scp->reg_base + MT8192_SCP2SPM_IPC_CLR);
326 writel(1, scp->reg_base + MT8192_CORE0_SW_RSTN_SET);
329 mt8192_power_on_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_0);
330 mt8192_power_on_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_1);
331 mt8192_power_on_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_2);
332 mt8192_power_on_sram(scp->reg_base + MT8192_L1TCM_SRAM_PDN);
333 mt8192_power_on_sram(scp->reg_base + MT8192_CPU0_SRAM_PD);
340 struct mtk_scp *scp = rproc->priv;
341 struct device *dev = scp->dev;
344 ret = clk_prepare_enable(scp->clk);
351 scp->data->scp_reset_assert(scp);
353 ret = scp->data->scp_before_load(scp);
359 clk_disable_unprepare(scp->clk);
366 struct mtk_scp *scp = (struct mtk_scp *)rproc->priv;
367 struct device *dev = scp->dev;
368 struct scp_run *run = &scp->run;
371 ret = clk_prepare_enable(scp->clk);
379 scp->data->scp_reset_deassert(scp);
396 clk_disable_unprepare(scp->clk);
402 scp->data->scp_reset_assert(scp);
403 clk_disable_unprepare(scp->clk);
409 struct mtk_scp *scp = (struct mtk_scp *)rproc->priv;
412 if (da < scp->sram_size) {
414 if (offset >= 0 && (offset + len) < scp->sram_size)
415 return (void __force *)scp->sram_base + offset;
416 } else if (scp->dram_size) {
417 offset = da - scp->dma_addr;
418 if (offset >= 0 && (offset + len) < scp->dram_size)
419 return (void __force *)scp->cpu_addr + offset;
425 static void mt8183_scp_stop(struct mtk_scp *scp)
428 writel(0, scp->reg_base + MT8183_WDT_CFG);
431 static void mt8192_scp_stop(struct mtk_scp *scp)
434 mt8192_power_off_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_0);
435 mt8192_power_off_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_1);
436 mt8192_power_off_sram(scp->reg_base + MT8192_L2TCM_SRAM_PD_2);
437 mt8192_power_off_sram(scp->reg_base + MT8192_L1TCM_SRAM_PDN);
438 mt8192_power_off_sram(scp->reg_base + MT8192_CPU0_SRAM_PD);
441 writel(0, scp->reg_base + MT8192_CORE0_WDT_CFG);
446 struct mtk_scp *scp = (struct mtk_scp *)rproc->priv;
449 ret = clk_prepare_enable(scp->clk);
451 dev_err(scp->dev, "failed to enable clocks\n");
455 scp->data->scp_reset_assert(scp);
456 scp->data->scp_stop(scp);
457 clk_disable_unprepare(scp->clk);
472 * @scp: mtk_scp structure
474 struct device *scp_get_device(struct mtk_scp *scp)
476 return scp->dev;
483 * @scp: mtk_scp structure
485 struct rproc *scp_get_rproc(struct mtk_scp *scp)
487 return scp->rproc;
494 * @scp: mtk_scp structure
498 unsigned int scp_get_vdec_hw_capa(struct mtk_scp *scp)
500 return scp->run.dec_capability;
507 * @scp: mtk_scp structure
511 unsigned int scp_get_venc_hw_capa(struct mtk_scp *scp)
513 return scp->run.enc_capability;
520 * @scp: mtk_scp structure
531 void *scp_mapping_dm_addr(struct mtk_scp *scp, u32 mem_addr)
535 ptr = scp_da_to_va(scp->rproc, mem_addr, 0);
543 static int scp_map_memory_region(struct mtk_scp *scp)
547 ret = of_reserved_mem_device_init(scp->dev);
551 dev_info(scp->dev, "skipping reserved memory initialization.");
556 dev_err(scp->dev, "failed to assign memory-region: %d\n", ret);
561 scp->dram_size = MAX_CODE_SIZE;
562 scp->cpu_addr = dma_alloc_coherent(scp->dev, scp->dram_size,
563 &scp->dma_addr, GFP_KERNEL);
564 if (!scp->cpu_addr)
570 static void scp_unmap_memory_region(struct mtk_scp *scp)
572 if (scp->dram_size == 0)
575 dma_free_coherent(scp->dev, scp->dram_size, scp->cpu_addr,
576 scp->dma_addr);
577 of_reserved_mem_device_release(scp->dev);
583 struct mtk_scp *scp = platform_get_drvdata(pdev);
585 return scp_ipi_register(scp, id, handler, priv);
590 struct mtk_scp *scp = platform_get_drvdata(pdev);
592 scp_ipi_unregister(scp, id);
598 struct mtk_scp *scp = platform_get_drvdata(pdev);
600 return scp_ipi_send(scp, id, buf, len, wait);
610 static void scp_add_rpmsg_subdev(struct mtk_scp *scp)
612 scp->rpmsg_subdev =
613 mtk_rpmsg_create_rproc_subdev(to_platform_device(scp->dev),
615 if (scp->rpmsg_subdev)
616 rproc_add_subdev(scp->rproc, scp->rpmsg_subdev);
619 static void scp_remove_rpmsg_subdev(struct mtk_scp *scp)
621 if (scp->rpmsg_subdev) {
622 rproc_remove_subdev(scp->rproc, scp->rpmsg_subdev);
623 mtk_rpmsg_destroy_rproc_subdev(scp->rpmsg_subdev);
624 scp->rpmsg_subdev = NULL;
632 struct mtk_scp *scp;
635 char *fw_name = "scp.img";
642 sizeof(*scp));
648 scp = (struct mtk_scp *)rproc->priv;
649 scp->rproc = rproc;
650 scp->dev = dev;
651 scp->data = of_device_get_match_data(dev);
652 platform_set_drvdata(pdev, scp);
655 scp->sram_base = devm_ioremap_resource(dev, res);
656 if (IS_ERR((__force void *)scp->sram_base)) {
658 ret = PTR_ERR((__force void *)scp->sram_base);
661 scp->sram_size = resource_size(res);
663 mutex_init(&scp->send_lock);
665 mutex_init(&scp->ipi_desc[i].lock);
668 scp->reg_base = devm_ioremap_resource(dev, res);
669 if (IS_ERR((__force void *)scp->reg_base)) {
671 ret = PTR_ERR((__force void *)scp->reg_base);
675 ret = scp_map_memory_region(scp);
679 scp->clk = devm_clk_get(dev, "main");
680 if (IS_ERR(scp->clk)) {
682 ret = PTR_ERR(scp->clk);
686 ret = clk_prepare_enable(scp->clk);
692 ret = scp_ipi_init(scp);
693 clk_disable_unprepare(scp->clk);
700 ret = scp_ipi_register(scp, SCP_IPI_INIT, scp_init_ipi_handler, scp);
706 init_waitqueue_head(&scp->run.wq);
707 init_waitqueue_head(&scp->ack_wq);
709 scp_add_rpmsg_subdev(scp);
713 pdev->name, scp);
727 scp_remove_rpmsg_subdev(scp);
728 scp_ipi_unregister(scp, SCP_IPI_INIT);
730 scp_unmap_memory_region(scp);
733 mutex_destroy(&scp->ipi_desc[i].lock);
734 mutex_destroy(&scp->send_lock);
743 struct mtk_scp *scp = platform_get_drvdata(pdev);
746 rproc_del(scp->rproc);
747 scp_remove_rpmsg_subdev(scp);
748 scp_ipi_unregister(scp, SCP_IPI_INIT);
749 scp_unmap_memory_region(scp);
751 mutex_destroy(&scp->ipi_desc[i].lock);
752 mutex_destroy(&scp->send_lock);
753 rproc_free(scp->rproc);
779 { .compatible = "mediatek,mt8183-scp", .data = &mt8183_of_data },
780 { .compatible = "mediatek,mt8192-scp", .data = &mt8192_of_data },
789 .name = "mtk-scp",