--- /dev/null
+++ b/drivers/mtd/devices/ar2315.c
-@@ -0,0 +1,519 @@
+@@ -0,0 +1,536 @@
+
+/*
+ * MTD driver for the SPI Flash Memory support on Atheros AR2315
+#include <linux/delay.h>
+#include <linux/io.h>
+
-+#include <ar2315_spiflash.h>
-+#include <ar231x_platform.h>
-+#include <ar231x.h>
++#include "ar2315_spiflash.h"
+
+
+#define SPIFLASH "spiflash: "
+ u32 sector_size;
+};
+
-+const struct flashconfig flashconfig_tbl[] = {
++static const struct flashconfig flashconfig_tbl[] = {
+ [FLASH_NONE] = { 0, 0, 0},
-+ [FLASH_1MB] = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE},
-+ [FLASH_2MB] = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE},
-+ [FLASH_4MB] = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE},
-+ [FLASH_8MB] = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE},
-+ [FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT, STM_16MB_SECTOR_SIZE}
++ [FLASH_1MB] = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT,
++ STM_1MB_SECTOR_SIZE},
++ [FLASH_2MB] = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT,
++ STM_2MB_SECTOR_SIZE},
++ [FLASH_4MB] = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT,
++ STM_4MB_SECTOR_SIZE},
++ [FLASH_8MB] = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT,
++ STM_8MB_SECTOR_SIZE},
++ [FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT,
++ STM_16MB_SECTOR_SIZE}
+};
+
+/* Mapping of generic opcodes to STM serial flash opcodes */
+ __s8 rx_cnt;
+};
+
-+const struct opcodes stm_opcodes[] = {
++static const struct opcodes stm_opcodes[] = {
+ [SPI_WRITE_ENABLE] = {STM_OP_WR_ENABLE, 1, 0},
+ [SPI_WRITE_DISABLE] = {STM_OP_WR_DISABLE, 1, 0},
+ [SPI_RD_STATUS] = {STM_OP_RD_STATUS, 1, 1},
+/* Driver private data structure */
+struct spiflash_priv {
+ struct mtd_info mtd;
-+ void *readaddr; /* memory mapped data for read */
-+ void *mmraddr; /* memory mapped register space */
++ void __iomem *readaddr; /* memory mapped data for read */
++ void __iomem *mmraddr; /* memory mapped register space */
+ wait_queue_head_t wq;
+ spinlock_t lock;
+ int state;
+ FL_WRITING
+};
+
-+/***************************************************************************************************/
++/*****************************************************************************/
+
+static u32
+spiflash_read_reg(struct spiflash_priv *priv, int reg)
+{
-+ return ar231x_read_reg((u32) priv->mmraddr + reg);
++ return ioread32(priv->mmraddr + reg);
+}
+
+static void
+spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data)
+{
-+ ar231x_write_reg((u32) priv->mmraddr + reg, data);
++ iowrite32(data, priv->mmraddr + reg);
+}
+
+static u32
+ u_char *buf)
+{
+ struct spiflash_priv *priv = to_spiflash(mtd);
-+ u8 *read_addr;
+
+ if (!len)
+ return 0;
+ if (!spiflash_wait_ready(priv, FL_READING))
+ return -EINTR;
+
-+ read_addr = (u8 *)(priv->readaddr + from);
-+ memcpy_fromio(buf, read_addr, len);
++ memcpy_fromio(buf, priv->readaddr + from, len);
+ spiflash_done(priv);
+
+ return 0;
+{
+ struct spiflash_priv *priv;
+ struct mtd_info *mtd;
++ struct resource *res;
+ int index;
+ int result = 0;
+
+ priv->state = FL_READY;
+ mtd = &priv->mtd;
+
-+ priv->mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++ if (!res) {
++ dev_err(&pdev->dev, "No MMR resource found\n");
++ goto error;
++ }
++
++ priv->mmraddr = ioremap_nocache(res->start, resource_size(res));
+ if (!priv->mmraddr) {
+ dev_warn(&pdev->dev, SPIFLASH "Failed to map flash device\n");
+ goto error;
+ goto error;
+ }
+
-+ priv->readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt);
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!res) {
++ dev_err(&pdev->dev, "No flash readmem resource found\n");
++ goto error;
++ }
++
++ priv->readaddr = ioremap_nocache(res->start,
++ flashconfig_tbl[index].byte_cnt);
+ if (!priv->readaddr) {
+ dev_warn(&pdev->dev, SPIFLASH "Failed to map flash device\n");
+ goto error;
+ mtd->_write = spiflash_write;
+ mtd->owner = THIS_MODULE;
+
++ dev_info(&pdev->dev, "%lld Kbytes flash detected\n", mtd->size >> 10);
++
+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
+ /* parse redboot partitions */
+
+ return 0;
+}
+
-+struct platform_driver spiflash_driver = {
++static struct platform_driver spiflash_driver = {
+ .driver.name = "spiflash",
+ .probe = spiflash_probe,
+ .remove = spiflash_remove,
+};
+
-+int __init
++static int __init
+spiflash_init(void)
+{
+ return platform_driver_register(&spiflash_driver);
+}
+
-+void __exit
++static void __exit
+spiflash_exit(void)
+{
+ return platform_driver_unregister(&spiflash_driver);
+MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");
+
--- /dev/null
-+++ b/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h
++++ b/drivers/mtd/devices/ar2315_spiflash.h
@@ -0,0 +1,116 @@
+/*
-+ * SPI Flash Memory support header file.
++ * Atheros AR2315 SPI Flash Memory support header file.
+ *
+ * Copyright (c) 2005, Atheros Communications Inc.
+ * Copyright (C) 2006 FON Technology, SL.
projects / openwrt / svn-archive / archive.git / blobdiff