zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-mxs/devices.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-mxs/devices.c
new file mode 100644
index 0000000..01faffe
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-mxs/devices.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2008 Sascha Hauer, kernel@pengutronix.de
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+
+struct platform_device *__init mxs_add_platform_device_dmamask(
+ const char *name, int id,
+ const struct resource *res, unsigned int num_resources,
+ const void *data, size_t size_data, u64 dmamask)
+{
+ int ret = -ENOMEM;
+ struct platform_device *pdev;
+
+ pdev = platform_device_alloc(name, id);
+ if (!pdev)
+ goto err;
+
+ if (dmamask) {
+ /*
+ * This memory isn't freed when the device is put,
+ * I don't have a nice idea for that though. Conceptually
+ * dma_mask in struct device should not be a pointer.
+ * See http://thread.gmane.org/gmane.linux.kernel.pci/9081
+ */
+ pdev->dev.dma_mask =
+ kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
+ if (!pdev->dev.dma_mask)
+ /* ret is still -ENOMEM; */
+ goto err;
+
+ *pdev->dev.dma_mask = dmamask;
+ pdev->dev.coherent_dma_mask = dmamask;
+ }
+
+ if (res) {
+ ret = platform_device_add_resources(pdev, res, num_resources);
+ if (ret)
+ goto err;
+ }
+
+ if (data) {
+ ret = platform_device_add_data(pdev, data, size_data);
+ if (ret)
+ goto err;
+ }
+
+ ret = platform_device_add(pdev);
+ if (ret) {
+err:
+ if (dmamask)
+ kfree(pdev->dev.dma_mask);
+ platform_device_put(pdev);
+ return ERR_PTR(ret);
+ }
+
+ return pdev;
+}
+
+int __init mxs_add_amba_device(const struct amba_device *dev)
+{
+ struct amba_device *adev = amba_device_alloc(dev->dev.init_name,
+ dev->res.start, resource_size(&dev->res));
+
+ if (!adev) {
+ pr_err("%s: failed to allocate memory", __func__);
+ return -ENOMEM;
+ }
+
+ adev->irq[0] = dev->irq[0];
+ adev->irq[1] = dev->irq[1];
+
+ return amba_device_add(adev, &iomem_resource);
+}
+
+struct device mxs_apbh_bus = {
+ .init_name = "mxs_apbh",
+ .parent = &platform_bus,
+};
+
+static int __init mxs_device_init(void)
+{
+ return device_register(&mxs_apbh_bus);
+}
+core_initcall(mxs_device_init);