| /* |
| * Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/io.h> |
| #include <linux/module.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/platform_device.h> |
| |
| #include <dt-bindings/memory/tegra186-mc.h> |
| |
| struct tegra_mc { |
| struct device *dev; |
| void __iomem *regs; |
| }; |
| |
| struct tegra_mc_client { |
| const char *name; |
| unsigned int sid; |
| struct { |
| unsigned int override; |
| unsigned int security; |
| } regs; |
| }; |
| |
| static const struct tegra_mc_client tegra186_mc_clients[] = { |
| { |
| .name = "ptcr", |
| .sid = TEGRA186_SID_PASSTHROUGH, |
| .regs = { |
| .override = 0x000, |
| .security = 0x004, |
| }, |
| }, { |
| .name = "afir", |
| .sid = TEGRA186_SID_AFI, |
| .regs = { |
| .override = 0x070, |
| .security = 0x074, |
| }, |
| }, { |
| .name = "hdar", |
| .sid = TEGRA186_SID_HDA, |
| .regs = { |
| .override = 0x0a8, |
| .security = 0x0ac, |
| }, |
| }, { |
| .name = "host1xdmar", |
| .sid = TEGRA186_SID_HOST1X, |
| .regs = { |
| .override = 0x0b0, |
| .security = 0x0b4, |
| }, |
| }, { |
| .name = "nvencsrd", |
| .sid = TEGRA186_SID_NVENC, |
| .regs = { |
| .override = 0x0e0, |
| .security = 0x0e4, |
| }, |
| }, { |
| .name = "satar", |
| .sid = TEGRA186_SID_SATA, |
| .regs = { |
| .override = 0x0f8, |
| .security = 0x0fc, |
| }, |
| }, { |
| .name = "mpcorer", |
| .sid = TEGRA186_SID_PASSTHROUGH, |
| .regs = { |
| .override = 0x138, |
| .security = 0x13c, |
| }, |
| }, { |
| .name = "nvencswr", |
| .sid = TEGRA186_SID_NVENC, |
| .regs = { |
| .override = 0x158, |
| .security = 0x15c, |
| }, |
| }, { |
| .name = "afiw", |
| .sid = TEGRA186_SID_AFI, |
| .regs = { |
| .override = 0x188, |
| .security = 0x18c, |
| }, |
| }, { |
| .name = "hdaw", |
| .sid = TEGRA186_SID_HDA, |
| .regs = { |
| .override = 0x1a8, |
| .security = 0x1ac, |
| }, |
| }, { |
| .name = "mpcorew", |
| .sid = TEGRA186_SID_PASSTHROUGH, |
| .regs = { |
| .override = 0x1c8, |
| .security = 0x1cc, |
| }, |
| }, { |
| .name = "sataw", |
| .sid = TEGRA186_SID_SATA, |
| .regs = { |
| .override = 0x1e8, |
| .security = 0x1ec, |
| }, |
| }, { |
| .name = "ispra", |
| .sid = TEGRA186_SID_ISP, |
| .regs = { |
| .override = 0x220, |
| .security = 0x224, |
| }, |
| }, { |
| .name = "ispwa", |
| .sid = TEGRA186_SID_ISP, |
| .regs = { |
| .override = 0x230, |
| .security = 0x234, |
| }, |
| }, { |
| .name = "ispwb", |
| .sid = TEGRA186_SID_ISP, |
| .regs = { |
| .override = 0x238, |
| .security = 0x23c, |
| }, |
| }, { |
| .name = "xusb_hostr", |
| .sid = TEGRA186_SID_XUSB_HOST, |
| .regs = { |
| .override = 0x250, |
| .security = 0x254, |
| }, |
| }, { |
| .name = "xusb_hostw", |
| .sid = TEGRA186_SID_XUSB_HOST, |
| .regs = { |
| .override = 0x258, |
| .security = 0x25c, |
| }, |
| }, { |
| .name = "xusb_devr", |
| .sid = TEGRA186_SID_XUSB_DEV, |
| .regs = { |
| .override = 0x260, |
| .security = 0x264, |
| }, |
| }, { |
| .name = "xusb_devw", |
| .sid = TEGRA186_SID_XUSB_DEV, |
| .regs = { |
| .override = 0x268, |
| .security = 0x26c, |
| }, |
| }, { |
| .name = "tsecsrd", |
| .sid = TEGRA186_SID_TSEC, |
| .regs = { |
| .override = 0x2a0, |
| .security = 0x2a4, |
| }, |
| }, { |
| .name = "tsecswr", |
| .sid = TEGRA186_SID_TSEC, |
| .regs = { |
| .override = 0x2a8, |
| .security = 0x2ac, |
| }, |
| }, { |
| .name = "gpusrd", |
| .sid = TEGRA186_SID_GPU, |
| .regs = { |
| .override = 0x2c0, |
| .security = 0x2c4, |
| }, |
| }, { |
| .name = "gpuswr", |
| .sid = TEGRA186_SID_GPU, |
| .regs = { |
| .override = 0x2c8, |
| .security = 0x2cc, |
| }, |
| }, { |
| .name = "sdmmcra", |
| .sid = TEGRA186_SID_SDMMC1, |
| .regs = { |
| .override = 0x300, |
| .security = 0x304, |
| }, |
| }, { |
| .name = "sdmmcraa", |
| .sid = TEGRA186_SID_SDMMC2, |
| .regs = { |
| .override = 0x308, |
| .security = 0x30c, |
| }, |
| }, { |
| .name = "sdmmcr", |
| .sid = TEGRA186_SID_SDMMC3, |
| .regs = { |
| .override = 0x310, |
| .security = 0x314, |
| }, |
| }, { |
| .name = "sdmmcrab", |
| .sid = TEGRA186_SID_SDMMC4, |
| .regs = { |
| .override = 0x318, |
| .security = 0x31c, |
| }, |
| }, { |
| .name = "sdmmcwa", |
| .sid = TEGRA186_SID_SDMMC1, |
| .regs = { |
| .override = 0x320, |
| .security = 0x324, |
| }, |
| }, { |
| .name = "sdmmcwaa", |
| .sid = TEGRA186_SID_SDMMC2, |
| .regs = { |
| .override = 0x328, |
| .security = 0x32c, |
| }, |
| }, { |
| .name = "sdmmcw", |
| .sid = TEGRA186_SID_SDMMC3, |
| .regs = { |
| .override = 0x330, |
| .security = 0x334, |
| }, |
| }, { |
| .name = "sdmmcwab", |
| .sid = TEGRA186_SID_SDMMC4, |
| .regs = { |
| .override = 0x338, |
| .security = 0x33c, |
| }, |
| }, { |
| .name = "vicsrd", |
| .sid = TEGRA186_SID_VIC, |
| .regs = { |
| .override = 0x360, |
| .security = 0x364, |
| }, |
| }, { |
| .name = "vicswr", |
| .sid = TEGRA186_SID_VIC, |
| .regs = { |
| .override = 0x368, |
| .security = 0x36c, |
| }, |
| }, { |
| .name = "viw", |
| .sid = TEGRA186_SID_VI, |
| .regs = { |
| .override = 0x390, |
| .security = 0x394, |
| }, |
| }, { |
| .name = "nvdecsrd", |
| .sid = TEGRA186_SID_NVDEC, |
| .regs = { |
| .override = 0x3c0, |
| .security = 0x3c4, |
| }, |
| }, { |
| .name = "nvdecswr", |
| .sid = TEGRA186_SID_NVDEC, |
| .regs = { |
| .override = 0x3c8, |
| .security = 0x3cc, |
| }, |
| }, { |
| .name = "aper", |
| .sid = TEGRA186_SID_APE, |
| .regs = { |
| .override = 0x3d0, |
| .security = 0x3d4, |
| }, |
| }, { |
| .name = "apew", |
| .sid = TEGRA186_SID_APE, |
| .regs = { |
| .override = 0x3d8, |
| .security = 0x3dc, |
| }, |
| }, { |
| .name = "nvjpgsrd", |
| .sid = TEGRA186_SID_NVJPG, |
| .regs = { |
| .override = 0x3f0, |
| .security = 0x3f4, |
| }, |
| }, { |
| .name = "nvjpgswr", |
| .sid = TEGRA186_SID_NVJPG, |
| .regs = { |
| .override = 0x3f8, |
| .security = 0x3fc, |
| }, |
| }, { |
| .name = "sesrd", |
| .sid = TEGRA186_SID_SE, |
| .regs = { |
| .override = 0x400, |
| .security = 0x404, |
| }, |
| }, { |
| .name = "seswr", |
| .sid = TEGRA186_SID_SE, |
| .regs = { |
| .override = 0x408, |
| .security = 0x40c, |
| }, |
| }, { |
| .name = "etrr", |
| .sid = TEGRA186_SID_ETR, |
| .regs = { |
| .override = 0x420, |
| .security = 0x424, |
| }, |
| }, { |
| .name = "etrw", |
| .sid = TEGRA186_SID_ETR, |
| .regs = { |
| .override = 0x428, |
| .security = 0x42c, |
| }, |
| }, { |
| .name = "tsecsrdb", |
| .sid = TEGRA186_SID_TSECB, |
| .regs = { |
| .override = 0x430, |
| .security = 0x434, |
| }, |
| }, { |
| .name = "tsecswrb", |
| .sid = TEGRA186_SID_TSECB, |
| .regs = { |
| .override = 0x438, |
| .security = 0x43c, |
| }, |
| }, { |
| .name = "gpusrd2", |
| .sid = TEGRA186_SID_GPU, |
| .regs = { |
| .override = 0x440, |
| .security = 0x444, |
| }, |
| }, { |
| .name = "gpuswr2", |
| .sid = TEGRA186_SID_GPU, |
| .regs = { |
| .override = 0x448, |
| .security = 0x44c, |
| }, |
| }, { |
| .name = "axisr", |
| .sid = TEGRA186_SID_GPCDMA_0, |
| .regs = { |
| .override = 0x460, |
| .security = 0x464, |
| }, |
| }, { |
| .name = "axisw", |
| .sid = TEGRA186_SID_GPCDMA_0, |
| .regs = { |
| .override = 0x468, |
| .security = 0x46c, |
| }, |
| }, { |
| .name = "eqosr", |
| .sid = TEGRA186_SID_EQOS, |
| .regs = { |
| .override = 0x470, |
| .security = 0x474, |
| }, |
| }, { |
| .name = "eqosw", |
| .sid = TEGRA186_SID_EQOS, |
| .regs = { |
| .override = 0x478, |
| .security = 0x47c, |
| }, |
| }, { |
| .name = "ufshcr", |
| .sid = TEGRA186_SID_UFSHC, |
| .regs = { |
| .override = 0x480, |
| .security = 0x484, |
| }, |
| }, { |
| .name = "ufshcw", |
| .sid = TEGRA186_SID_UFSHC, |
| .regs = { |
| .override = 0x488, |
| .security = 0x48c, |
| }, |
| }, { |
| .name = "nvdisplayr", |
| .sid = TEGRA186_SID_NVDISPLAY, |
| .regs = { |
| .override = 0x490, |
| .security = 0x494, |
| }, |
| }, { |
| .name = "bpmpr", |
| .sid = TEGRA186_SID_BPMP, |
| .regs = { |
| .override = 0x498, |
| .security = 0x49c, |
| }, |
| }, { |
| .name = "bpmpw", |
| .sid = TEGRA186_SID_BPMP, |
| .regs = { |
| .override = 0x4a0, |
| .security = 0x4a4, |
| }, |
| }, { |
| .name = "bpmpdmar", |
| .sid = TEGRA186_SID_BPMP, |
| .regs = { |
| .override = 0x4a8, |
| .security = 0x4ac, |
| }, |
| }, { |
| .name = "bpmpdmaw", |
| .sid = TEGRA186_SID_BPMP, |
| .regs = { |
| .override = 0x4b0, |
| .security = 0x4b4, |
| }, |
| }, { |
| .name = "aonr", |
| .sid = TEGRA186_SID_AON, |
| .regs = { |
| .override = 0x4b8, |
| .security = 0x4bc, |
| }, |
| }, { |
| .name = "aonw", |
| .sid = TEGRA186_SID_AON, |
| .regs = { |
| .override = 0x4c0, |
| .security = 0x4c4, |
| }, |
| }, { |
| .name = "aondmar", |
| .sid = TEGRA186_SID_AON, |
| .regs = { |
| .override = 0x4c8, |
| .security = 0x4cc, |
| }, |
| }, { |
| .name = "aondmaw", |
| .sid = TEGRA186_SID_AON, |
| .regs = { |
| .override = 0x4d0, |
| .security = 0x4d4, |
| }, |
| }, { |
| .name = "scer", |
| .sid = TEGRA186_SID_SCE, |
| .regs = { |
| .override = 0x4d8, |
| .security = 0x4dc, |
| }, |
| }, { |
| .name = "scew", |
| .sid = TEGRA186_SID_SCE, |
| .regs = { |
| .override = 0x4e0, |
| .security = 0x4e4, |
| }, |
| }, { |
| .name = "scedmar", |
| .sid = TEGRA186_SID_SCE, |
| .regs = { |
| .override = 0x4e8, |
| .security = 0x4ec, |
| }, |
| }, { |
| .name = "scedmaw", |
| .sid = TEGRA186_SID_SCE, |
| .regs = { |
| .override = 0x4f0, |
| .security = 0x4f4, |
| }, |
| }, { |
| .name = "apedmar", |
| .sid = TEGRA186_SID_APE, |
| .regs = { |
| .override = 0x4f8, |
| .security = 0x4fc, |
| }, |
| }, { |
| .name = "apedmaw", |
| .sid = TEGRA186_SID_APE, |
| .regs = { |
| .override = 0x500, |
| .security = 0x504, |
| }, |
| }, { |
| .name = "nvdisplayr1", |
| .sid = TEGRA186_SID_NVDISPLAY, |
| .regs = { |
| .override = 0x508, |
| .security = 0x50c, |
| }, |
| }, { |
| .name = "vicsrd1", |
| .sid = TEGRA186_SID_VIC, |
| .regs = { |
| .override = 0x510, |
| .security = 0x514, |
| }, |
| }, { |
| .name = "nvdecsrd1", |
| .sid = TEGRA186_SID_NVDEC, |
| .regs = { |
| .override = 0x518, |
| .security = 0x51c, |
| }, |
| }, |
| }; |
| |
| static int tegra186_mc_probe(struct platform_device *pdev) |
| { |
| struct resource *res; |
| struct tegra_mc *mc; |
| unsigned int i; |
| int err = 0; |
| |
| mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL); |
| if (!mc) |
| return -ENOMEM; |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| mc->regs = devm_ioremap_resource(&pdev->dev, res); |
| if (IS_ERR(mc->regs)) |
| return PTR_ERR(mc->regs); |
| |
| mc->dev = &pdev->dev; |
| |
| for (i = 0; i < ARRAY_SIZE(tegra186_mc_clients); i++) { |
| const struct tegra_mc_client *client = &tegra186_mc_clients[i]; |
| u32 override, security; |
| |
| override = readl(mc->regs + client->regs.override); |
| security = readl(mc->regs + client->regs.security); |
| |
| dev_dbg(&pdev->dev, "client %s: override: %x security: %x\n", |
| client->name, override, security); |
| |
| dev_dbg(&pdev->dev, "setting SID %u for %s\n", client->sid, |
| client->name); |
| writel(client->sid, mc->regs + client->regs.override); |
| |
| override = readl(mc->regs + client->regs.override); |
| security = readl(mc->regs + client->regs.security); |
| |
| dev_dbg(&pdev->dev, "client %s: override: %x security: %x\n", |
| client->name, override, security); |
| } |
| |
| platform_set_drvdata(pdev, mc); |
| |
| return err; |
| } |
| |
| static const struct of_device_id tegra186_mc_of_match[] = { |
| { .compatible = "nvidia,tegra186-mc", }, |
| { /* sentinel */ } |
| }; |
| MODULE_DEVICE_TABLE(of, tegra186_mc_of_match); |
| |
| static struct platform_driver tegra186_mc_driver = { |
| .driver = { |
| .name = "tegra186-mc", |
| .of_match_table = tegra186_mc_of_match, |
| .suppress_bind_attrs = true, |
| }, |
| .prevent_deferred_probe = true, |
| .probe = tegra186_mc_probe, |
| }; |
| module_platform_driver(tegra186_mc_driver); |
| |
| MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); |
| MODULE_DESCRIPTION("NVIDIA Tegra186 Memory Controller driver"); |
| MODULE_LICENSE("GPL v2"); |
