[PATCH] Remove 'SBC8240 Wind River' Device Driver Code
Subrata Modak
subrata at linux.vnet.ibm.com
Sat Jun 27 00:25:13 EST 2009
Hi David/Scott,
Today's next tree(20090626) produced the following build error:
CC [M] drivers/mtd/maps/sbc8240.o
drivers/mtd/maps/sbc8240.c:31:1: warning: "DEBUG" redefined
In file included from drivers/mtd/maps/sbc8240.c:23:
include/linux/mtd/mtd.h:333:1: warning: this is the location of the previous definition
drivers/mtd/maps/sbc8240.c: In function 'init_sbc8240_mtd':
drivers/mtd/maps/sbc8240.c:172: warning: passing argument 1 of 'simple_map_init' from incompatible pointer type
drivers/mtd/maps/sbc8240.c:177: error: 'struct mtd_info' has no member named 'module'
make[3]: *** [drivers/mtd/maps/sbc8240.o] Error 1
make[2]: *** [drivers/mtd/maps] Error 2
make[1]: *** [drivers/mtd] Error 2
make: *** [drivers] Error 2
I remember reporting this log back in April, when you suggested in removing it:
http://lkml.org/lkml/2009/4/21/476,
>On Tue, 2009-04-21 at 15:00 -0500, Scott Wood wrote:
>Subrata Modak wrote:
> > This is a very old one. Doesn´t seem to go away. Reported this earlier
> > on 14th April:
> > http://lkml.org/lkml/2009/4/14/483,
> >
> > CC [M] drivers/mtd/maps/sbc8240.o
> > drivers/mtd/maps/sbc8240.c:31:1: warning: "DEBUG" redefined
> > In file included from drivers/mtd/maps/sbc8240.c:23:
> > include/linux/mtd/mtd.h:339:1: warning: this is the location of the
> > previous definition
> > drivers/mtd/maps/sbc8240.c: In function ‘init_sbc8240_mtd’:
> > drivers/mtd/maps/sbc8240.c:172: error: ‘sbc8240_mtd’ undeclared (first
> > use in this function)
> > drivers/mtd/maps/sbc8240.c:172: error: (Each undeclared identifier is
> > reported only once
> > drivers/mtd/maps/sbc8240.c:172: error: for each function it appears in.)
> > drivers/mtd/maps/sbc8240.c: In function ‘cleanup_sbc8240_mtd’:
> > drivers/mtd/maps/sbc8240.c:233: error: ‘sbc8240_mtd’ undeclared (first
> > use in this function)
>
> This looks like an arch/ppc orphan. It's not enabled by any defconfig,
> and it doesn't look like it does anything that physmap_of can't do.
>
> I'd just remove it.
>
> -Scott
I tried to gather some more info about this driver from the link
mentioned in Kconfig:
http://www.windriver.com/products/sbc8240/,
without much success.
If there are no issues, can you please apply this patch to remove it ?
To: David Woodhouse <dwmw2 at infradead.org>,
To: Scott Wood <scottwood at freescale.com>,
Cc: Jim Cromie <jim.cromie at gmail.com>,
Cc: carolyn.j.smith at exgate.tek.com,
Cc: Adrian Bunk <bunk at kernel.org>,
Cc: Sachin P Sant <sachinp at linux.vnet.ibm.com>,
Cc: Balbir Singh <balbir at linux.vnet.ibm.com>,
Cc: Stephen Rothwell <sfr at canb.auug.org.au>,
Cc: linux-kernel <linux-kernel at vger.kernel.org>,
Cc: Linuxppc-dev <Linuxppc-dev at ozlabs.org>,
Cc: linux-next <linux-next at vger.kernel.org>,
Cc: Alexander Beregalov <a.beregalov at gmail.com>
Signed-off-by: Subrata Modak <subrata at linux.vnet.ibm.com>
Tested-on-PPC64-by: Subrata Modak <subrata at linux.vnet.ibm.com>
---
diff -uprN a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
--- a/drivers/mtd/maps/Kconfig 2009-06-26 07:36:23.000000000 -0500
+++ b/drivers/mtd/maps/Kconfig 2009-06-26 07:39:34.000000000 -0500
@@ -284,13 +284,6 @@ config MTD_L440GX
BE VERY CAREFUL.
-config MTD_SBC8240
- tristate "Flash device on SBC8240"
- depends on MTD_JEDECPROBE && 8260
- help
- Flash access on the SBC8240 board from Wind River. See
- <http://www.windriver.com/products/sbc8240/>
-
config MTD_TQM8XXL
tristate "CFI Flash device mapped on TQM8XXL"
depends on MTD_CFI && TQM8xxL
diff -uprN a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
--- a/drivers/mtd/maps/Makefile 2009-06-26 07:36:23.000000000 -0500
+++ b/drivers/mtd/maps/Makefile 2009-06-26 07:40:03.000000000 -0500
@@ -50,7 +50,6 @@ obj-$(CONFIG_MTD_UCLINUX) += uclinux.o
obj-$(CONFIG_MTD_NETtel) += nettel.o
obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o
obj-$(CONFIG_MTD_H720X) += h720x-flash.o
-obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o
obj-$(CONFIG_MTD_IXP2000) += ixp2000.o
obj-$(CONFIG_MTD_WRSBC8260) += wr_sbc82xx_flash.o
diff -uprN a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c
--- a/drivers/mtd/maps/sbc8240.c 2009-06-26 07:36:23.000000000 -0500
+++ b/drivers/mtd/maps/sbc8240.c 1969-12-31 18:00:00.000000000 -0600
@@ -1,250 +0,0 @@
-/*
- * Handle mapping of the flash memory access routines on the SBC8240 board.
- *
- * Carolyn Smith, Tektronix, Inc.
- *
- * This code is GPLed
- */
-
-/*
- * The SBC8240 has 2 flash banks.
- * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors.
- * It contains the U-Boot code (7 sectors) and the environment (1 sector).
- * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector,
- * 2 x 8 KiB sectors, 1 x 16 KiB sectors.
- * Both parts are JEDEC compatible.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/cfi.h>
-
-#ifdef CONFIG_MTD_PARTITIONS
-#include <linux/mtd/partitions.h>
-#endif
-
-#define DEBUG
-
-#ifdef DEBUG
-# define debugk(fmt,args...) printk(fmt ,##args)
-#else
-# define debugk(fmt,args...)
-#endif
-
-
-#define WINDOW_ADDR0 0xFFF00000 /* 512 KiB */
-#define WINDOW_SIZE0 0x00080000
-#define BUSWIDTH0 1
-
-#define WINDOW_ADDR1 0xFF000000 /* 4 MiB */
-#define WINDOW_SIZE1 0x00400000
-#define BUSWIDTH1 8
-
-#define MSG_PREFIX "sbc8240:" /* prefix for our printk()'s */
-#define MTDID "sbc8240-%d" /* for mtdparts= partitioning */
-
-
-static struct map_info sbc8240_map[2] = {
- {
- .name = "sbc8240 Flash Bank #0",
- .size = WINDOW_SIZE0,
- .bankwidth = BUSWIDTH0,
- },
- {
- .name = "sbc8240 Flash Bank #1",
- .size = WINDOW_SIZE1,
- .bankwidth = BUSWIDTH1,
- }
-};
-
-#define NUM_FLASH_BANKS ARRAY_SIZE(sbc8240_map)
-
-/*
- * The following defines the partition layout of SBC8240 boards.
- *
- * See include/linux/mtd/partitions.h for definition of the
- * mtd_partition structure.
- *
- * The *_max_flash_size is the maximum possible mapped flash size
- * which is not necessarily the actual flash size. It must correspond
- * to the value specified in the mapping definition defined by the
- * "struct map_desc *_io_desc" for the corresponding machine.
- */
-
-#ifdef CONFIG_MTD_PARTITIONS
-
-static struct mtd_partition sbc8240_uboot_partitions [] = {
- /* Bank 0 */
- {
- .name = "U-boot", /* U-Boot Firmware */
- .offset = 0,
- .size = 0x00070000, /* 7 x 64 KiB sectors */
- .mask_flags = MTD_WRITEABLE, /* force read-only */
- },
- {
- .name = "environment", /* U-Boot environment */
- .offset = 0x00070000,
- .size = 0x00010000, /* 1 x 64 KiB sector */
- },
-};
-
-static struct mtd_partition sbc8240_fs_partitions [] = {
- {
- .name = "jffs", /* JFFS filesystem */
- .offset = 0,
- .size = 0x003C0000, /* 4 * 15 * 64KiB */
- },
- {
- .name = "tmp32",
- .offset = 0x003C0000,
- .size = 0x00020000, /* 4 * 32KiB */
- },
- {
- .name = "tmp8a",
- .offset = 0x003E0000,
- .size = 0x00008000, /* 4 * 8KiB */
- },
- {
- .name = "tmp8b",
- .offset = 0x003E8000,
- .size = 0x00008000, /* 4 * 8KiB */
- },
- {
- .name = "tmp16",
- .offset = 0x003F0000,
- .size = 0x00010000, /* 4 * 16KiB */
- }
-};
-
-/* trivial struct to describe partition information */
-struct mtd_part_def
-{
- int nums;
- unsigned char *type;
- struct mtd_partition* mtd_part;
-};
-
-static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS];
-static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS];
-
-
-#endif /* CONFIG_MTD_PARTITIONS */
-
-
-static int __init init_sbc8240_mtd (void)
-{
- static struct _cjs {
- u_long addr;
- u_long size;
- } pt[NUM_FLASH_BANKS] = {
- {
- .addr = WINDOW_ADDR0,
- .size = WINDOW_SIZE0
- },
- {
- .addr = WINDOW_ADDR1,
- .size = WINDOW_SIZE1
- },
- };
-
- int devicesfound = 0;
- int i,j;
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
- printk (KERN_NOTICE MSG_PREFIX
- "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr);
-
- sbc8240_map[i].map_priv_1 =
- (unsigned long) ioremap (pt[i].addr, pt[i].size);
- if (!sbc8240_map[i].map_priv_1) {
- printk (MSG_PREFIX "failed to ioremap\n");
- for (j = 0; j < i; j++) {
- iounmap((void *) sbc8240_map[j].map_priv_1);
- sbc8240_map[j].map_priv_1 = 0;
- }
- return -EIO;
- }
- simple_map_init(&sbc8240_mtd[i]);
-
- sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]);
-
- if (sbc8240_mtd[i]) {
- sbc8240_mtd[i]->module = THIS_MODULE;
- devicesfound++;
- } else {
- if (sbc8240_map[i].map_priv_1) {
- iounmap((void *) sbc8240_map[i].map_priv_1);
- sbc8240_map[i].map_priv_1 = 0;
- }
- }
- }
-
- if (!devicesfound) {
- printk(KERN_NOTICE MSG_PREFIX
- "No suppported flash chips found!\n");
- return -ENXIO;
- }
-
-#ifdef CONFIG_MTD_PARTITIONS
- sbc8240_part_banks[0].mtd_part = sbc8240_uboot_partitions;
- sbc8240_part_banks[0].type = "static image";
- sbc8240_part_banks[0].nums = ARRAY_SIZE(sbc8240_uboot_partitions);
- sbc8240_part_banks[1].mtd_part = sbc8240_fs_partitions;
- sbc8240_part_banks[1].type = "static file system";
- sbc8240_part_banks[1].nums = ARRAY_SIZE(sbc8240_fs_partitions);
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
-
- if (!sbc8240_mtd[i]) continue;
- if (sbc8240_part_banks[i].nums == 0) {
- printk (KERN_NOTICE MSG_PREFIX
- "No partition info available, registering whole device\n");
- add_mtd_device(sbc8240_mtd[i]);
- } else {
- printk (KERN_NOTICE MSG_PREFIX
- "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name);
- add_mtd_partitions (sbc8240_mtd[i],
- sbc8240_part_banks[i].mtd_part,
- sbc8240_part_banks[i].nums);
- }
- }
-#else
- printk(KERN_NOTICE MSG_PREFIX
- "Registering %d flash banks at once\n", devicesfound);
-
- for (i = 0; i < devicesfound; i++) {
- add_mtd_device(sbc8240_mtd[i]);
- }
-#endif /* CONFIG_MTD_PARTITIONS */
-
- return devicesfound == 0 ? -ENXIO : 0;
-}
-
-static void __exit cleanup_sbc8240_mtd (void)
-{
- int i;
-
- for (i = 0; i < NUM_FLASH_BANKS; i++) {
- if (sbc8240_mtd[i]) {
- del_mtd_device (sbc8240_mtd[i]);
- map_destroy (sbc8240_mtd[i]);
- }
- if (sbc8240_map[i].map_priv_1) {
- iounmap ((void *) sbc8240_map[i].map_priv_1);
- sbc8240_map[i].map_priv_1 = 0;
- }
- }
-}
-
-module_init (init_sbc8240_mtd);
-module_exit (cleanup_sbc8240_mtd);
-
-MODULE_LICENSE ("GPL");
-MODULE_AUTHOR ("Carolyn Smith <carolyn.smith at tektronix.com>");
-MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards");
-
---
Regards--
Subrata
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