forked from luck/tmp_suning_uos_patched
1802d0beec
Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright © 2014 NVIDIA Corporation
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* Copyright © 2015 Broadcom Corporation
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*/
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/slab.h>
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#include <linux/soc/brcmstb/brcmstb.h>
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#include <linux/sys_soc.h>
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#include <soc/brcmstb/common.h>
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static u32 family_id;
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static u32 product_id;
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static const struct of_device_id brcmstb_machine_match[] = {
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{ .compatible = "brcm,brcmstb", },
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{ }
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};
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bool soc_is_brcmstb(void)
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{
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const struct of_device_id *match;
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struct device_node *root;
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root = of_find_node_by_path("/");
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if (!root)
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return false;
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match = of_match_node(brcmstb_machine_match, root);
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of_node_put(root);
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return match != NULL;
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}
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u32 brcmstb_get_family_id(void)
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{
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return family_id;
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}
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EXPORT_SYMBOL(brcmstb_get_family_id);
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u32 brcmstb_get_product_id(void)
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{
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return product_id;
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}
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EXPORT_SYMBOL(brcmstb_get_product_id);
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static const struct of_device_id sun_top_ctrl_match[] = {
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{ .compatible = "brcm,bcm7125-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7346-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7358-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7360-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7362-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7420-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7425-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7429-sun-top-ctrl", },
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{ .compatible = "brcm,bcm7435-sun-top-ctrl", },
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{ .compatible = "brcm,brcmstb-sun-top-ctrl", },
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{ }
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};
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static int __init brcmstb_soc_device_early_init(void)
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{
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struct device_node *sun_top_ctrl;
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void __iomem *sun_top_ctrl_base;
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int ret = 0;
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/* We could be on a multi-platform kernel, don't make this fatal but
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* bail out early
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*/
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sun_top_ctrl = of_find_matching_node(NULL, sun_top_ctrl_match);
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if (!sun_top_ctrl)
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return ret;
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sun_top_ctrl_base = of_iomap(sun_top_ctrl, 0);
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if (!sun_top_ctrl_base) {
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ret = -ENODEV;
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goto out;
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}
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family_id = readl(sun_top_ctrl_base);
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product_id = readl(sun_top_ctrl_base + 0x4);
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iounmap(sun_top_ctrl_base);
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out:
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of_node_put(sun_top_ctrl);
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return ret;
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}
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early_initcall(brcmstb_soc_device_early_init);
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static int __init brcmstb_soc_device_init(void)
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{
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struct soc_device_attribute *soc_dev_attr;
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struct device_node *sun_top_ctrl;
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struct soc_device *soc_dev;
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int ret = 0;
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/* We could be on a multi-platform kernel, don't make this fatal but
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* bail out early
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*/
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sun_top_ctrl = of_find_matching_node(NULL, sun_top_ctrl_match);
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if (!sun_top_ctrl)
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return ret;
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soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
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if (!soc_dev_attr) {
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ret = -ENOMEM;
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goto out;
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}
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soc_dev_attr->family = kasprintf(GFP_KERNEL, "%x",
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family_id >> 28 ?
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family_id >> 16 : family_id >> 8);
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soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%x",
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product_id >> 28 ?
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product_id >> 16 : product_id >> 8);
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soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c%d",
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((product_id & 0xf0) >> 4) + 'A',
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product_id & 0xf);
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soc_dev = soc_device_register(soc_dev_attr);
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if (IS_ERR(soc_dev)) {
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kfree(soc_dev_attr->family);
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kfree(soc_dev_attr->soc_id);
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kfree(soc_dev_attr->revision);
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kfree(soc_dev_attr);
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ret = -ENOMEM;
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}
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out:
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of_node_put(sun_top_ctrl);
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return ret;
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}
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arch_initcall(brcmstb_soc_device_init);
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