GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2015 Linaro
+ * peter.griffin <peter.griffin@linaro.org>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dwmmc.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <malloc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct hi6220_dwmmc_plat {
+	struct mmc_config cfg;
+	struct mmc mmc;
+};
+
+struct hi6220_dwmmc_priv_data {
+	struct dwmci_host host;
+};
+
+struct hisi_mmc_data {
+	unsigned int clock;
+	bool use_fifo;
+};
+
+static int hi6220_dwmmc_ofdata_to_platdata(struct udevice *dev)
+{
+	struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);
+	struct dwmci_host *host = &priv->host;
+
+	host->name = dev->name;
+	host->ioaddr = (void *)devfdt_get_addr(dev);
+	host->buswidth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
+					"bus-width", 4);
+
+	/* use non-removable property for differentiating SD card and eMMC */
+	if (dev_read_bool(dev, "non-removable"))
+		host->dev_index = 0;
+	else
+		host->dev_index = 1;
+
+	host->priv = priv;
+
+	return 0;
+}
+
+static int hi6220_dwmmc_probe(struct udevice *dev)
+{
+	struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);
+	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+	struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);
+	struct dwmci_host *host = &priv->host;
+	struct hisi_mmc_data *mmc_data;
+
+	mmc_data = (struct hisi_mmc_data *)dev_get_driver_data(dev);
+
+	/* Use default bus speed due to absence of clk driver */
+	host->bus_hz = mmc_data->clock;
+
+	dwmci_setup_cfg(&plat->cfg, host, host->bus_hz, 400000);
+	host->mmc = &plat->mmc;
+
+	host->fifo_mode = mmc_data->use_fifo;
+	host->mmc->priv = &priv->host;
+	upriv->mmc = host->mmc;
+	host->mmc->dev = dev;
+
+	return dwmci_probe(dev);
+}
+
+static int hi6220_dwmmc_bind(struct udevice *dev)
+{
+	struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);
+	int ret;
+
+	ret = dwmci_bind(dev, &plat->mmc, &plat->cfg);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static const struct hisi_mmc_data hi3660_mmc_data = {
+	.clock = 3200000,
+	.use_fifo = true,
+};
+
+static const struct hisi_mmc_data hi6220_mmc_data = {
+	.clock = 50000000,
+	.use_fifo = false,
+};
+
+static const struct udevice_id hi6220_dwmmc_ids[] = {
+	{ .compatible = "hisilicon,hi6220-dw-mshc",
+	  .data = (ulong)&hi6220_mmc_data },
+	{ .compatible = "hisilicon,hi3798cv200-dw-mshc",
+	  .data = (ulong)&hi6220_mmc_data },
+	{ .compatible = "hisilicon,hi3660-dw-mshc",
+	  .data = (ulong)&hi3660_mmc_data },
+	{ }
+};
+
+U_BOOT_DRIVER(hi6220_dwmmc_drv) = {
+	.name = "hi6220_dwmmc",
+	.id = UCLASS_MMC,
+	.of_match = hi6220_dwmmc_ids,
+	.ofdata_to_platdata = hi6220_dwmmc_ofdata_to_platdata,
+	.ops = &dm_dwmci_ops,
+	.bind = hi6220_dwmmc_bind,
+	.probe = hi6220_dwmmc_probe,
+	.priv_auto_alloc_size = sizeof(struct hi6220_dwmmc_priv_data),
+	.platdata_auto_alloc_size = sizeof(struct hi6220_dwmmc_plat),
+};