14 #include <soc/tegra/mc.h>
17 #include <dt-bindings/memory/tegra186-mc.h>
20 #include "mc.h"
26 static int tegra186_mc_probe(struct tegra_mc *mc)  in tegra186_mc_probe()  argument
28 	struct platform_device *pdev = to_platform_device(mc->dev);  in tegra186_mc_probe()
35 	 * From Tegra264, the SID region is not present in MC node and BROADCAST is first.  in tegra186_mc_probe()
38 	 * the first entry mapped in mc probe as the BROADCAST region. This is done to avoid  in tegra186_mc_probe()
43 		mc->bcast_ch_regs = devm_platform_ioremap_resource_byname(pdev, "broadcast");  in tegra186_mc_probe()
45 		mc->bcast_ch_regs = mc->regs;  in tegra186_mc_probe()
47 	if (IS_ERR(mc->bcast_ch_regs)) {  in tegra186_mc_probe()
48 		if (PTR_ERR(mc->bcast_ch_regs) == -EINVAL) {  in tegra186_mc_probe()
51 			mc->bcast_ch_regs = NULL;  in tegra186_mc_probe()
55 		return PTR_ERR(mc->bcast_ch_regs);  in tegra186_mc_probe()
58 	mc->ch_regs = devm_kcalloc(mc->dev, mc->soc->num_channels, sizeof(*mc->ch_regs),  in tegra186_mc_probe()
60 	if (!mc->ch_regs)  in tegra186_mc_probe()
63 	for (i = 0; i < mc->soc->num_channels; i++) {  in tegra186_mc_probe()
66 		mc->ch_regs[i] = devm_platform_ioremap_resource_byname(pdev, name);  in tegra186_mc_probe()
67 		if (IS_ERR(mc->ch_regs[i]))  in tegra186_mc_probe()
68 			return PTR_ERR(mc->ch_regs[i]);  in tegra186_mc_probe()
72 	err = of_platform_populate(mc->dev->of_node, NULL, NULL, mc->dev);  in tegra186_mc_probe()
79 static void tegra186_mc_remove(struct tegra_mc *mc)  in tegra186_mc_remove()  argument
81 	of_platform_depopulate(mc->dev);  in tegra186_mc_remove()
85 static void tegra186_mc_client_sid_override(struct tegra_mc *mc,  in tegra186_mc_client_sid_override()  argument
94 	value = readl(mc->regs + client->regs.sid.security);  in tegra186_mc_client_sid_override()
113 		writel(value, mc->regs + client->regs.sid.security);  in tegra186_mc_client_sid_override()
116 	value = readl(mc->regs + client->regs.sid.override);  in tegra186_mc_client_sid_override()
120 		dev_dbg(mc->dev, "overriding SID %x for %s with %x\n", old,  in tegra186_mc_client_sid_override()
122 		writel(sid, mc->regs + client->regs.sid.override);  in tegra186_mc_client_sid_override()
127 static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev)  in tegra186_mc_probe_device()  argument
139 		if (args.np == mc->dev->of_node && args.args_count != 0) {  in tegra186_mc_probe_device()
140 			for (i = 0; i < mc->soc->num_clients; i++) {  in tegra186_mc_probe_device()
141 				const struct tegra_mc_client *client = &mc->soc->clients[i];  in tegra186_mc_probe_device()
145 						mc, client,  in tegra186_mc_probe_device()
157 static int tegra186_mc_resume(struct tegra_mc *mc)  in tegra186_mc_resume()  argument
162 	for (i = 0; i < mc->soc->num_clients; i++) {  in tegra186_mc_resume()
163 		const struct tegra_mc_client *client = &mc->soc->clients[i];  in tegra186_mc_resume()
165 		tegra186_mc_client_sid_override(mc, client, client->sid);  in tegra186_mc_resume()