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authorBoris Brezillon <boris.brezillon@bootlin.com>2018-02-06 01:02:04 +0300
committerBoris Brezillon <boris.brezillon@bootlin.com>2018-02-16 12:09:34 +0300
commit93db446a424cee9387b532995e6b516667079555 (patch)
tree39c7900ae38d890fb971ea5fc6f194f7e66fa797 /drivers/mtd/nand/brcmnand/iproc_nand.c
parent7b6afee7291802aa8c02aa918782033992caf641 (diff)
downloadlinux-93db446a424cee9387b532995e6b516667079555.tar.xz
mtd: nand: move raw NAND related code to the raw/ subdir
As part of the process of sharing more code between different NAND based devices, we need to move all raw NAND related code to the raw/ subdirectory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand/brcmnand/iproc_nand.c')
-rw-r--r--drivers/mtd/nand/brcmnand/iproc_nand.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/drivers/mtd/nand/brcmnand/iproc_nand.c b/drivers/mtd/nand/brcmnand/iproc_nand.c
deleted file mode 100644
index 4c6ae113664d..000000000000
--- a/drivers/mtd/nand/brcmnand/iproc_nand.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Copyright © 2015 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License 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/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 iproc_nand_soc {
- struct brcmnand_soc soc;
-
- void __iomem *idm_base;
- void __iomem *ext_base;
- spinlock_t idm_lock;
-};
-
-#define IPROC_NAND_CTLR_READY_OFFSET 0x10
-#define IPROC_NAND_CTLR_READY BIT(0)
-
-#define IPROC_NAND_IO_CTRL_OFFSET 0x00
-#define IPROC_NAND_APB_LE_MODE BIT(24)
-#define IPROC_NAND_INT_CTRL_READ_ENABLE BIT(6)
-
-static bool iproc_nand_intc_ack(struct brcmnand_soc *soc)
-{
- struct iproc_nand_soc *priv =
- container_of(soc, struct iproc_nand_soc, soc);
- void __iomem *mmio = priv->ext_base + IPROC_NAND_CTLR_READY_OFFSET;
- u32 val = brcmnand_readl(mmio);
-
- if (val & IPROC_NAND_CTLR_READY) {
- brcmnand_writel(IPROC_NAND_CTLR_READY, mmio);
- return true;
- }
-
- return false;
-}
-
-static void iproc_nand_intc_set(struct brcmnand_soc *soc, bool en)
-{
- struct iproc_nand_soc *priv =
- container_of(soc, struct iproc_nand_soc, soc);
- void __iomem *mmio = priv->idm_base + IPROC_NAND_IO_CTRL_OFFSET;
- u32 val;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->idm_lock, flags);
-
- val = brcmnand_readl(mmio);
-
- if (en)
- val |= IPROC_NAND_INT_CTRL_READ_ENABLE;
- else
- val &= ~IPROC_NAND_INT_CTRL_READ_ENABLE;
-
- brcmnand_writel(val, mmio);
-
- spin_unlock_irqrestore(&priv->idm_lock, flags);
-}
-
-static void iproc_nand_apb_access(struct brcmnand_soc *soc, bool prepare,
- bool is_param)
-{
- struct iproc_nand_soc *priv =
- container_of(soc, struct iproc_nand_soc, soc);
- void __iomem *mmio = priv->idm_base + IPROC_NAND_IO_CTRL_OFFSET;
- u32 val;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->idm_lock, flags);
-
- val = brcmnand_readl(mmio);
-
- /*
- * In the case of BE or when dealing with NAND data, alway configure
- * the APB bus to LE mode before accessing the FIFO and back to BE mode
- * after the access is done
- */
- if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) || !is_param) {
- if (prepare)
- val |= IPROC_NAND_APB_LE_MODE;
- else
- val &= ~IPROC_NAND_APB_LE_MODE;
- } else { /* when in LE accessing the parameter page, keep APB in BE */
- val &= ~IPROC_NAND_APB_LE_MODE;
- }
-
- brcmnand_writel(val, mmio);
-
- spin_unlock_irqrestore(&priv->idm_lock, flags);
-}
-
-static int iproc_nand_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct iproc_nand_soc *priv;
- struct brcmnand_soc *soc;
- struct resource *res;
-
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
- soc = &priv->soc;
-
- spin_lock_init(&priv->idm_lock);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "iproc-idm");
- priv->idm_base = devm_ioremap_resource(dev, res);
- if (IS_ERR(priv->idm_base))
- return PTR_ERR(priv->idm_base);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "iproc-ext");
- priv->ext_base = devm_ioremap_resource(dev, res);
- if (IS_ERR(priv->ext_base))
- return PTR_ERR(priv->ext_base);
-
- soc->ctlrdy_ack = iproc_nand_intc_ack;
- soc->ctlrdy_set_enabled = iproc_nand_intc_set;
- soc->prepare_data_bus = iproc_nand_apb_access;
-
- return brcmnand_probe(pdev, soc);
-}
-
-static const struct of_device_id iproc_nand_of_match[] = {
- { .compatible = "brcm,nand-iproc" },
- {},
-};
-MODULE_DEVICE_TABLE(of, iproc_nand_of_match);
-
-static struct platform_driver iproc_nand_driver = {
- .probe = iproc_nand_probe,
- .remove = brcmnand_remove,
- .driver = {
- .name = "iproc_nand",
- .pm = &brcmnand_pm_ops,
- .of_match_table = iproc_nand_of_match,
- }
-};
-module_platform_driver(iproc_nand_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Brian Norris");
-MODULE_AUTHOR("Ray Jui");
-MODULE_DESCRIPTION("NAND driver for Broadcom IPROC-based SoCs");