first commit for chrg

2025-08-16 22:58:22 +08:00
commit 52a3ed5862
2306 changed files with 1021208 additions and 0 deletions
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-10-24     GuEe-GUI     first version
+ */
+
+#include <rtthread.h>
+
+#include "../ecam.h"
+
+rt_err_t pci_host_common_probe(struct rt_platform_device *pdev)
+{
+    void *base;
+    rt_err_t err;
+    struct rt_device *dev = &pdev->parent;
+    struct pci_ecam_config_window *conf_win;
+    struct rt_pci_host_bridge *host_bridge = rt_pci_host_bridge_alloc(0);
+
+    if (!host_bridge)
+    {
+        return -RT_ENOMEM;
+    }
+
+    if (!(base = rt_dm_dev_iomap(dev, 0)))
+    {
+        err = -RT_EIO;
+        goto _fail;
+    }
+
+    host_bridge->parent.ofw_node = dev->ofw_node;
+
+    if ((err = rt_pci_host_bridge_init(host_bridge)))
+    {
+        goto _fail;
+    }
+
+    host_bridge->sysdata = conf_win = pci_ecam_create(host_bridge,
+            (const struct pci_ecam_ops *)pdev->id->data);
+
+    if (!conf_win)
+    {
+        err = -RT_ENOMEM;
+        goto _fail;
+    }
+
+    conf_win->win = base;
+    conf_win->priv = host_bridge;
+
+    if ((err = rt_pci_host_bridge_probe(host_bridge)))
+    {
+        goto _fail;
+    }
+
+    dev->user_data = host_bridge;
+
+    return RT_EOK;
+
+_fail:
+    if (base)
+    {
+        rt_iounmap(base);
+    }
+    rt_pci_host_bridge_free(host_bridge);
+
+    return err;
+}
+
+rt_err_t pci_host_common_remove(struct rt_platform_device *pdev)
+{
+    struct pci_ecam_config_window *conf_win;
+    struct rt_pci_host_bridge *host_bridge = pdev->parent.user_data;
+
+    rt_pci_host_bridge_remove(host_bridge);
+
+    conf_win = host_bridge->sysdata;
+
+    rt_iounmap(conf_win->win);
+    rt_pci_host_bridge_free(host_bridge);
+
+    return RT_EOK;
+}