[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/nvmem/qfprom.c b/src/kernel/linux/v4.19/drivers/nvmem/qfprom.c
new file mode 100644
index 0000000..fbb1f1d
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/nvmem/qfprom.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2015 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only 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.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/io.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+
+struct qfprom_priv {
+ void __iomem *base;
+};
+
+static int qfprom_reg_read(void *context,
+ unsigned int reg, void *_val, size_t bytes)
+{
+ struct qfprom_priv *priv = context;
+ u8 *val = _val;
+ int i = 0, words = bytes;
+
+ while (words--)
+ *val++ = readb(priv->base + reg + i++);
+
+ return 0;
+}
+
+static int qfprom_reg_write(void *context,
+ unsigned int reg, void *_val, size_t bytes)
+{
+ struct qfprom_priv *priv = context;
+ u8 *val = _val;
+ int i = 0, words = bytes;
+
+ while (words--)
+ writeb(*val++, priv->base + reg + i++);
+
+ return 0;
+}
+
+static struct nvmem_config econfig = {
+ .name = "qfprom",
+ .stride = 1,
+ .word_size = 1,
+ .reg_read = qfprom_reg_read,
+ .reg_write = qfprom_reg_write,
+};
+
+static int qfprom_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ struct nvmem_device *nvmem;
+ struct qfprom_priv *priv;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ econfig.size = resource_size(res);
+ econfig.dev = dev;
+ econfig.priv = priv;
+
+ nvmem = devm_nvmem_register(dev, &econfig);
+
+ return PTR_ERR_OR_ZERO(nvmem);
+}
+
+static const struct of_device_id qfprom_of_match[] = {
+ { .compatible = "qcom,qfprom",},
+ {/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, qfprom_of_match);
+
+static struct platform_driver qfprom_driver = {
+ .probe = qfprom_probe,
+ .driver = {
+ .name = "qcom,qfprom",
+ .of_match_table = qfprom_of_match,
+ },
+};
+module_platform_driver(qfprom_driver);
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org>");
+MODULE_DESCRIPTION("Qualcomm QFPROM driver");
+MODULE_LICENSE("GPL v2");