mtd: rawnand: brcmnand: Rename bcm63138 nand driver

In preparing to support multiple BCMBCA SoCs, rename bcm63138 to bcmbca
in the driver code and driver file name.

Signed-off-by: William Zhang <[email protected]>
Reviewed-by: David Regan <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]

Author: William Zhang

drivers/mtd/nand/raw/brcmnand/Makefile

@@ -2,7 +2,7 @@
 # link order matters; don't link the more generic brcmstb_nand.o before the
 # more specific iproc_nand.o, for instance
 obj-$(CONFIG_MTD_NAND_BRCMNAND_IPROC)	+= iproc_nand.o
-obj-$(CONFIG_MTD_NAND_BRCMNAND_BCMBCA)	+= bcm63138_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND_BCMBCA)	+= bcmbca_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND_BCM63XX)	+= bcm6368_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND_BRCMSTB)	+= brcmstb_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= brcmnand.o

drivers/mtd/nand/raw/brcmnand/bcm63138_nand.c

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2015 Broadcom Corporation
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "brcmnand.h"
+
+struct bcmbca_nand_soc {
+	struct brcmnand_soc soc;
+	void __iomem *base;
+};
+
+#define BCMBCA_NAND_INT_STATUS		0x00
+#define BCMBCA_NAND_INT_EN			0x04
+
+enum {
+	BCMBCA_CTLRDY		= BIT(4),
+};
+
+static bool bcmbca_nand_intc_ack(struct brcmnand_soc *soc)
+{
+	struct bcmbca_nand_soc *priv =
+			container_of(soc, struct bcmbca_nand_soc, soc);
+	void __iomem *mmio = priv->base + BCMBCA_NAND_INT_STATUS;
+	u32 val = brcmnand_readl(mmio);
+
+	if (val & BCMBCA_CTLRDY) {
+		brcmnand_writel(val & ~BCMBCA_CTLRDY, mmio);
+		return true;
+	}
+
+	return false;
+}
+
+static void bcmbca_nand_intc_set(struct brcmnand_soc *soc, bool en)
+{
+	struct bcmbca_nand_soc *priv =
+			container_of(soc, struct bcmbca_nand_soc, soc);
+	void __iomem *mmio = priv->base + BCMBCA_NAND_INT_EN;
+	u32 val = brcmnand_readl(mmio);
+
+	if (en)
+		val |= BCMBCA_CTLRDY;
+	else
+		val &= ~BCMBCA_CTLRDY;
+
+	brcmnand_writel(val, mmio);
+}
+
+static int bcmbca_nand_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcmbca_nand_soc *priv;
+	struct brcmnand_soc *soc;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	soc = &priv->soc;
+
+	priv->base = devm_platform_ioremap_resource_byname(pdev, "nand-int-base");
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	soc->ctlrdy_ack = bcmbca_nand_intc_ack;
+	soc->ctlrdy_set_enabled = bcmbca_nand_intc_set;
+
+	return brcmnand_probe(pdev, soc);
+}
+
+static const struct of_device_id bcmbca_nand_of_match[] = {
+	{ .compatible = "brcm,nand-bcm63138" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, bcmbca_nand_of_match);
+
+static struct platform_driver bcmbca_nand_driver = {
+	.probe			= bcmbca_nand_probe,
+	.remove_new		= brcmnand_remove,
+	.driver = {
+		.name		= "bcmbca_nand",
+		.pm		= &brcmnand_pm_ops,
+		.of_match_table	= bcmbca_nand_of_match,
+	}
+};
+module_platform_driver(bcmbca_nand_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Brian Norris");
+MODULE_DESCRIPTION("NAND driver for BCMBCA");