lua: Fixed some cross-platform issues for PPC (and probably other architectures)

[openwrt.git] / target / linux / adm5120 / files / drivers / mtd / maps / adm5120-flash.c

diff --git a/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c b/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
index 0a2590e..c637c4f 100644 (file)
--- a/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
+++ b/target/linux/adm5120/files/drivers/mtd/maps/adm5120-flash.c
@@ -10,20 +10,9 @@
  *     Copyright (C) 2003 MontaVista Software Inc.
  *     Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
  *
  *     Copyright (C) 2003 MontaVista Software Inc.
  *     Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
  *

- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version 2
- *  of the License, or (at your option) any later version.
- *
- *  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.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the
- *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA  02110-1301, USA.
+ *  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.

  *
  */
 
  *
  */
 


@@ -32,19 +21,18 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>

+#include <linux/io.h>

 #include <linux/device.h>
 #include <linux/device.h>

-

 #include <linux/platform_device.h>
 #include <linux/platform_device.h>

+

 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 

-#include <asm/io.h>
-
-#include <asm/mach-adm5120/adm5120_defs.h>
-#include <asm/mach-adm5120/adm5120_switch.h>
-#include <asm/mach-adm5120/adm5120_mpmc.h>
-#include <asm/mach-adm5120/adm5120_platform.h>
+#include <adm5120_defs.h>
+#include <adm5120_switch.h>
+#include <adm5120_mpmc.h>
+#include <adm5120_platform.h>

 
 #define DRV_NAME       "adm5120-flash"
 #define DRV_DESC       "ADM5120 flash MAP driver"
 
 #define DRV_NAME       "adm5120-flash"
 #define DRV_DESC       "ADM5120 flash MAP driver"


@@ -78,7 +66,6 @@ struct adm5120_flash_info {
 struct flash_desc {
        u32     phys;
        u32     srs_shift;
 struct flash_desc {
        u32     phys;
        u32     srs_shift;

-       u32     mpmc_reg;

 };
 
 /*
 };
 
 /*


@@ -98,11 +85,9 @@ static u32 flash_sizes[8] = {
 static struct flash_desc flash_descs[2] = {
        {
                .phys           = ADM5120_SRAM0_BASE,
 static struct flash_desc flash_descs[2] = {
        {
                .phys           = ADM5120_SRAM0_BASE,

-               .mpmc_reg       = MPMC_REG_SC1,

                .srs_shift      = MEMCTRL_SRS0_SHIFT,
        }, {
                .phys           = ADM5120_SRAM1_BASE,
                .srs_shift      = MEMCTRL_SRS0_SHIFT,
        }, {
                .phys           = ADM5120_SRAM1_BASE,

-               .mpmc_reg       = MPMC_REG_SC0,

                .srs_shift      = MEMCTRL_SRS1_SHIFT,
        }
 };
                .srs_shift      = MEMCTRL_SRS1_SHIFT,
        }
 };


@@ -176,7 +161,7 @@ static void adm5120_flash_write(struct map_info *map, const map_word datum,
 {
        struct adm5120_map_info *amap = map_to_amap(map);
 
 {
        struct adm5120_map_info *amap = map_to_amap(map);
 

-       MAP_DBG(map,"writing to ofs %lX\n", ofs);
+       MAP_DBG(map, "writing to ofs %lX\n", ofs);

 
        if (ofs > amap->window_size)
                return;
 
        if (ofs > amap->window_size)
                return;


@@ -224,14 +209,15 @@ static int adm5120_flash_initres(struct adm5120_flash_info *info)
        struct map_info *map = &info->amap.map;
        int err = 0;
 
        struct map_info *map = &info->amap.map;
        int err = 0;
 

-       info->res = request_mem_region(map->phys, map->size, map->name);
+       info->res = request_mem_region(map->phys, info->amap.window_size,
+                       map->name);

        if (info->res == NULL) {
                MAP_ERR(map, "could not reserve memory region\n");
                err = -ENOMEM;
                goto out;
        }
 
        if (info->res == NULL) {
                MAP_ERR(map, "could not reserve memory region\n");
                err = -ENOMEM;
                goto out;
        }
 

-       map->virt = ioremap_nocache(map->phys, map->size);
+       map->virt = ioremap_nocache(map->phys, info->amap.window_size);

        if (map->virt == NULL) {
                MAP_ERR(map, "failed to ioremap flash region\n");
                err = -ENOMEM;
        if (map->virt == NULL) {
                MAP_ERR(map, "failed to ioremap flash region\n");
                err = -ENOMEM;


@@ -242,18 +228,13 @@ out:
        return err;
 }
 
        return err;
 }
 

-#define SWITCH_READ(r) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r))
-#define SWITCH_WRITE(r,v) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r))=(v)
-#define MPMC_READ(r) *(u32 *)(KSEG1ADDR(ADM5120_MPMC_BASE)+(r))
-#define MPMC_WRITE(r,v) *(u32 *)(KSEG1ADDR(ADM5120_MPMC_BASE)+(r))=(v)
-

 static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
                struct platform_device *dev)
 {
        struct map_info *map = &info->amap.map;
        struct adm5120_flash_platform_data *pdata = dev->dev.platform_data;
        struct flash_desc *fdesc;
 static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
                struct platform_device *dev)
 {
        struct map_info *map = &info->amap.map;
        struct adm5120_flash_platform_data *pdata = dev->dev.platform_data;
        struct flash_desc *fdesc;

-       u32 t;
+       u32 t = 0;

 
        map->name = dev->dev.bus_id;
 
 
        map->name = dev->dev.bus_id;
 


@@ -264,17 +245,30 @@ static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
 
        fdesc = &flash_descs[dev->id];
 
 
        fdesc = &flash_descs[dev->id];
 

-       /* get memory window size */
-       t = SWITCH_READ(SWITCH_REG_MEMCTRL) >> fdesc->srs_shift;
-       t &= MEMCTRL_SRS_MASK;
-       info->amap.window_size = flash_sizes[t];
+       if (pdata)
+               info->amap.window_size = pdata->window_size;
+

        if (info->amap.window_size == 0) {
        if (info->amap.window_size == 0) {

-               MAP_ERR(map, "invalid flash size detected\n");
+               /* get memory window size */
+               t = SW_READ_REG(SWITCH_REG_MEMCTRL) >> fdesc->srs_shift;
+               t &= MEMCTRL_SRS_MASK;
+               info->amap.window_size = flash_sizes[t];
+       }
+
+       if (info->amap.window_size == 0) {
+               MAP_ERR(map, "unable to determine window size\n");

                goto err_out;
        }
 
        /* get flash bus width */
                goto err_out;
        }
 
        /* get flash bus width */

-       t = MPMC_READ(fdesc->mpmc_reg) & SC_MW_MASK;
+       switch (dev->id) {
+       case 0:
+               t = MPMC_READ_REG(SC1) & SC_MW_MASK;
+               break;
+       case 1:
+               t = MPMC_READ_REG(SC0) & SC_MW_MASK;
+               break;
+       }

        map->bankwidth = flash_bankwidths[t];
        if (map->bankwidth == 0) {
                MAP_ERR(map, "invalid bus width detected\n");
        map->bankwidth = flash_bankwidths[t];
        if (map->bankwidth == 0) {
                MAP_ERR(map, "invalid bus width detected\n");


@@ -330,7 +324,7 @@ static void adm5120_flash_initbanks(struct adm5120_flash_info *info)
 #ifdef CONFIG_MTD_PARTITIONS
 static int adm5120_flash_initparts(struct adm5120_flash_info *info)
 {
 #ifdef CONFIG_MTD_PARTITIONS
 static int adm5120_flash_initparts(struct adm5120_flash_info *info)
 {

-       struct adm5120_flash_platform_data *pdata = info->dev->dev.platform_data;
+       struct adm5120_flash_platform_data *pdata;

        struct map_info *map = &info->amap.map;
        int num_parsers;
        const char *parser[2];
        struct map_info *map = &info->amap.map;
        int num_parsers;
        const char *parser[2];


@@ -340,6 +334,7 @@ static int adm5120_flash_initparts(struct adm5120_flash_info *info)
 
        info->nr_parts = 0;
 
 
        info->nr_parts = 0;
 

+       pdata = info->dev->dev.platform_data;

        if (pdata == NULL)
                goto out;
 
        if (pdata == NULL)
                goto out;
 


@@ -358,7 +353,7 @@ static int adm5120_flash_initparts(struct adm5120_flash_info *info)
                num_parsers = MAX_PARSED_PARTS;
 
        parser[1] = NULL;
                num_parsers = MAX_PARSED_PARTS;
 
        parser[1] = NULL;

-       for (i=0; i<num_parsers; i++) {
+       for (i = 0; i < num_parsers; i++) {

                parser[0] = parse_types[i];
 
                MAP_INFO(map, "parsing \"%s\" partitions\n",
                parser[0] = parse_types[i];
 
                MAP_INFO(map, "parsing \"%s\" partitions\n",


@@ -395,7 +390,7 @@ static void adm5120_flash_remove_mtd(struct adm5120_flash_info *info)
 
        if (info->nr_parts) {
                del_mtd_partitions(info->mtd);
 
        if (info->nr_parts) {
                del_mtd_partitions(info->mtd);

-               for (i=0; i<MAX_PARSED_PARTS; i++)
+               for (i = 0; i < MAX_PARSED_PARTS; i++)

                        if (info->parts[i] != NULL)
                                kfree(info->parts[i]);
        } else {
                        if (info->parts[i] != NULL)
                                kfree(info->parts[i]);
        } else {


@@ -497,7 +492,8 @@ static int adm5120_flash_probe(struct platform_device *dev)
                goto err_out;
 
        if (info->nr_parts == 0) {
                goto err_out;
 
        if (info->nr_parts == 0) {

-               MAP_INFO(map, "no partitions available, registering whole flash\n");
+               MAP_INFO(map, "no partitions available, registering "
+                       "whole flash\n");

                add_mtd_device(info->mtd);
        }
 
                add_mtd_device(info->mtd);
        }
 


@@ -509,7 +505,8 @@ err_out:
 }
 
 #ifdef CONFIG_PM
 }
 
 #ifdef CONFIG_PM

-static int adm5120_flash_suspend(struct platform_device *dev, pm_message_t state)
+static int adm5120_flash_suspend(struct platform_device *dev,
+               pm_message_t state)

 {
        struct adm5120_flash_info *info = platform_get_drvdata(dev);
        int ret = 0;
 {
        struct adm5120_flash_info *info = platform_get_drvdata(dev);
        int ret = 0;


@@ -569,6 +566,6 @@ static void __exit adm5120_flash_exit(void)
 module_init(adm5120_flash_init);
 module_exit(adm5120_flash_exit);
 
 module_init(adm5120_flash_init);
 module_exit(adm5120_flash_exit);
 

-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

 MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
 MODULE_DESCRIPTION(DRV_DESC);
 MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
 MODULE_DESCRIPTION(DRV_DESC);