1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2017-2021 NVIDIA CORPORATION.  All rights reserved.
7 #include <linux/iommu.h>
17 #include <dt-bindings/memory/tegra186-mc.h>
28 	struct platform_device *pdev = to_platform_device(mc->dev);  in tegra186_mc_probe()
33 	mc->bcast_ch_regs = devm_platform_ioremap_resource_byname(pdev, "broadcast");  in tegra186_mc_probe()
34 	if (IS_ERR(mc->bcast_ch_regs)) {  in tegra186_mc_probe()
35 		if (PTR_ERR(mc->bcast_ch_regs) == -EINVAL) {  in tegra186_mc_probe()
36 			dev_warn(&pdev->dev,  in tegra186_mc_probe()
37 				 "Broadcast channel is missing, please update your device-tree\n");  in tegra186_mc_probe()
38 			mc->bcast_ch_regs = NULL;  in tegra186_mc_probe()
42 		return PTR_ERR(mc->bcast_ch_regs);  in tegra186_mc_probe()
45 	mc->ch_regs = devm_kcalloc(mc->dev, mc->soc->num_channels, sizeof(*mc->ch_regs),  in tegra186_mc_probe()
47 	if (!mc->ch_regs)  in tegra186_mc_probe()
48 		return -ENOMEM;  in tegra186_mc_probe()
50 	for (i = 0; i < mc->soc->num_channels; i++) {  in tegra186_mc_probe()
53 		mc->ch_regs[i] = devm_platform_ioremap_resource_byname(pdev, name);  in tegra186_mc_probe()
54 		if (IS_ERR(mc->ch_regs[i]))  in tegra186_mc_probe()
55 			return PTR_ERR(mc->ch_regs[i]);  in tegra186_mc_probe()
59 	err = of_platform_populate(mc->dev->of_node, NULL, NULL, mc->dev);  in tegra186_mc_probe()
68 	of_platform_depopulate(mc->dev);  in tegra186_mc_remove()
78 	if (client->regs.sid.security == 0 && client->regs.sid.override == 0)  in tegra186_mc_client_sid_override()
81 	value = readl(mc->regs + client->regs.sid.security);  in tegra186_mc_client_sid_override()
84 		 * If the secure firmware has locked this down the override  in tegra186_mc_client_sid_override()
92 		 * secure firmware will never have set this configuration.  in tegra186_mc_client_sid_override()
100 		writel(value, mc->regs + client->regs.sid.security);  in tegra186_mc_client_sid_override()
103 	value = readl(mc->regs + client->regs.sid.override);  in tegra186_mc_client_sid_override()
107 		dev_dbg(mc->dev, "overriding SID %x for %s with %x\n", old,  in tegra186_mc_client_sid_override()
108 			client->name, sid);  in tegra186_mc_client_sid_override()
109 		writel(sid, mc->regs + client->regs.sid.override);  in tegra186_mc_client_sid_override()
124 	while (!of_parse_phandle_with_args(dev->of_node, "interconnects", "#interconnect-cells",  in tegra186_mc_probe_device()
126 		if (args.np == mc->dev->of_node && args.args_count != 0) {  in tegra186_mc_probe_device()
127 			for (i = 0; i < mc->soc->num_clients; i++) {  in tegra186_mc_probe_device()
128 				const struct tegra_mc_client *client = &mc->soc->clients[i];  in tegra186_mc_probe_device()
130 				if (client->id == args.args[0])  in tegra186_mc_probe_device()
149 	for (i = 0; i < mc->soc->num_clients; i++) {  in tegra186_mc_resume()
150 		const struct tegra_mc_client *client = &mc->soc->clients[i];  in tegra186_mc_resume()
152 		tegra186_mc_client_sid_override(mc, client, client->sid);  in tegra186_mc_resume()
170 		.id = TEGRA186_MEMORY_CLIENT_PTCR,
180 		.id = TEGRA186_MEMORY_CLIENT_AFIR,
190 		.id = TEGRA186_MEMORY_CLIENT_HDAR,
200 		.id = TEGRA186_MEMORY_CLIENT_HOST1XDMAR,
210 		.id = TEGRA186_MEMORY_CLIENT_NVENCSRD,
220 		.id = TEGRA186_MEMORY_CLIENT_SATAR,
230 		.id = TEGRA186_MEMORY_CLIENT_MPCORER,
240 		.id = TEGRA186_MEMORY_CLIENT_NVENCSWR,
250 		.id = TEGRA186_MEMORY_CLIENT_AFIW,
260 		.id = TEGRA186_MEMORY_CLIENT_HDAW,
270 		.id = TEGRA186_MEMORY_CLIENT_MPCOREW,
280 		.id = TEGRA186_MEMORY_CLIENT_SATAW,
290 		.id = TEGRA186_MEMORY_CLIENT_ISPRA,
300 		.id = TEGRA186_MEMORY_CLIENT_ISPWA,
310 		.id = TEGRA186_MEMORY_CLIENT_ISPWB,
320 		.id = TEGRA186_MEMORY_CLIENT_XUSB_HOSTR,
330 		.id = TEGRA186_MEMORY_CLIENT_XUSB_HOSTW,
340 		.id = TEGRA186_MEMORY_CLIENT_XUSB_DEVR,
350 		.id = TEGRA186_MEMORY_CLIENT_XUSB_DEVW,
360 		.id = TEGRA186_MEMORY_CLIENT_TSECSRD,
370 		.id = TEGRA186_MEMORY_CLIENT_TSECSWR,
380 		.id = TEGRA186_MEMORY_CLIENT_GPUSRD,
390 		.id = TEGRA186_MEMORY_CLIENT_GPUSWR,
400 		.id = TEGRA186_MEMORY_CLIENT_SDMMCRA,
410 		.id = TEGRA186_MEMORY_CLIENT_SDMMCRAA,
420 		.id = TEGRA186_MEMORY_CLIENT_SDMMCR,
430 		.id = TEGRA186_MEMORY_CLIENT_SDMMCRAB,
440 		.id = TEGRA186_MEMORY_CLIENT_SDMMCWA,
450 		.id = TEGRA186_MEMORY_CLIENT_SDMMCWAA,
460 		.id = TEGRA186_MEMORY_CLIENT_SDMMCW,
470 		.id = TEGRA186_MEMORY_CLIENT_SDMMCWAB,
480 		.id = TEGRA186_MEMORY_CLIENT_VICSRD,
490 		.id = TEGRA186_MEMORY_CLIENT_VICSWR,
500 		.id = TEGRA186_MEMORY_CLIENT_VIW,
510 		.id = TEGRA186_MEMORY_CLIENT_NVDECSRD,
520 		.id = TEGRA186_MEMORY_CLIENT_NVDECSWR,
530 		.id = TEGRA186_MEMORY_CLIENT_APER,
540 		.id = TEGRA186_MEMORY_CLIENT_APEW,
550 		.id = TEGRA186_MEMORY_CLIENT_NVJPGSRD,
560 		.id = TEGRA186_MEMORY_CLIENT_NVJPGSWR,
570 		.id = TEGRA186_MEMORY_CLIENT_SESRD,
580 		.id = TEGRA186_MEMORY_CLIENT_SESWR,
590 		.id = TEGRA186_MEMORY_CLIENT_ETRR,
600 		.id = TEGRA186_MEMORY_CLIENT_ETRW,
610 		.id = TEGRA186_MEMORY_CLIENT_TSECSRDB,
620 		.id = TEGRA186_MEMORY_CLIENT_TSECSWRB,
630 		.id = TEGRA186_MEMORY_CLIENT_GPUSRD2,
640 		.id = TEGRA186_MEMORY_CLIENT_GPUSWR2,
650 		.id = TEGRA186_MEMORY_CLIENT_AXISR,
660 		.id = TEGRA186_MEMORY_CLIENT_AXISW,
670 		.id = TEGRA186_MEMORY_CLIENT_EQOSR,
680 		.id = TEGRA186_MEMORY_CLIENT_EQOSW,
690 		.id = TEGRA186_MEMORY_CLIENT_UFSHCR,
700 		.id = TEGRA186_MEMORY_CLIENT_UFSHCW,
710 		.id = TEGRA186_MEMORY_CLIENT_NVDISPLAYR,
720 		.id = TEGRA186_MEMORY_CLIENT_BPMPR,
730 		.id = TEGRA186_MEMORY_CLIENT_BPMPW,
740 		.id = TEGRA186_MEMORY_CLIENT_BPMPDMAR,
750 		.id = TEGRA186_MEMORY_CLIENT_BPMPDMAW,
760 		.id = TEGRA186_MEMORY_CLIENT_AONR,
770 		.id = TEGRA186_MEMORY_CLIENT_AONW,
780 		.id = TEGRA186_MEMORY_CLIENT_AONDMAR,
790 		.id = TEGRA186_MEMORY_CLIENT_AONDMAW,
800 		.id = TEGRA186_MEMORY_CLIENT_SCER,
810 		.id = TEGRA186_MEMORY_CLIENT_SCEW,
820 		.id = TEGRA186_MEMORY_CLIENT_SCEDMAR,
830 		.id = TEGRA186_MEMORY_CLIENT_SCEDMAW,
840 		.id = TEGRA186_MEMORY_CLIENT_APEDMAR,
850 		.id = TEGRA186_MEMORY_CLIENT_APEDMAW,
860 		.id = TEGRA186_MEMORY_CLIENT_NVDISPLAYR1,
870 		.id = TEGRA186_MEMORY_CLIENT_VICSRD1,
880 		.id = TEGRA186_MEMORY_CLIENT_NVDECSRD1,