Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd

Pull MTD update from David Woodhouse:
 "Fairly unexciting MTD merge for 3.9:

   - misc clean-ups in the MTD command-line partitioning parser
     (cmdlinepart)
   - add flash locking support for STmicro chips serial flash chips, as
     well as for CFI command set 2 chips.
   - new driver for the ELM error correction HW module found in various
     TI chips, enable the OMAP NAND driver to use the ELM HW error
     correction
   - added number of new serial flash IDs
   - various fixes and improvements in the gpmi NAND driver
   - bcm47xx NAND driver improvements
   - make the mtdpart module actually removable"

* tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits)
  mtd: map: BUG() in non handled cases
  mtd: bcm47xxnflash: use pr_fmt for module prefix in messages
  mtd: davinci_nand: Use managed resources
  mtd: mtd_torturetest can cause stack overflows
  mtd: physmap_of: Convert device allocation to managed devm_kzalloc()
  mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement.
  mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional.
  mtd: atmel_nand: avoid to report an error when lookup table offset is 0.
  mtd: bcm47xxsflash: adjust names of bus-specific functions
  mtd: bcm47xxpart: improve probing of nvram partition
  mtd: bcm47xxpart: add support for other erase sizes
  mtd: bcm47xxnflash: register this as normal driver
  mtd: bcm47xxnflash: fix message
  mtd: bcm47xxsflash: register this as normal driver
  mtd: bcm47xxsflash: write number of written bytes
  mtd: gpmi: add sanity check for the ECC
  mtd: gpmi: set the Golois Field bit for mx6q's BCH
  mtd: devices: elm: Removes <xx> literals in elm DT node
  mtd: gpmi: fix a dereferencing freed memory error
  mtd: fix the wrong timeo for panic_nand_wait()
  ...

3 files changed, 30 insertions, 11 deletions

diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 62ba82c..3ed17c4 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -429,7 +429,7 @@ config MTD_GPIO_ADDR
 
 config MTD_UCLINUX
 	bool "Generic uClinux RAM/ROM filesystem support"
-	depends on MTD_RAM=y && (!MMU || COLDFIRE)
+	depends on (MTD_RAM=y || MTD_ROM=y) && (!MMU || COLDFIRE)
 	help
 	  Map driver to support image based filesystems for uClinux.
 
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 7901d72..363939d 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -68,9 +68,6 @@ static int of_flash_remove(struct platform_device *dev)
 			kfree(info->list[i].res);
 		}
 	}
-
-	kfree(info);
-
 	return 0;
 }
 
@@ -199,8 +196,9 @@ static int of_flash_probe(struct platform_device *dev)
 	map_indirect = of_property_read_bool(dp, "no-unaligned-direct-access");
 
 	err = -ENOMEM;
-	info = kzalloc(sizeof(struct of_flash) +
-		       sizeof(struct of_flash_list) * count, GFP_KERNEL);
+	info = devm_kzalloc(&dev->dev,
+			    sizeof(struct of_flash) +
+			    sizeof(struct of_flash_list) * count, GFP_KERNEL);
 	if (!info)
 		goto err_flash_remove;
 
@@ -241,6 +239,7 @@ static int of_flash_probe(struct platform_device *dev)
 		info->list[i].map.phys = res.start;
 		info->list[i].map.size = res_size;
 		info->list[i].map.bankwidth = be32_to_cpup(width);
+		info->list[i].map.device_node = dp;
 
 		err = -ENOMEM;
 		info->list[i].map.virt = ioremap(info->list[i].map.phys,
diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c
index 299bf88..c1af83d 100644
--- a/drivers/mtd/maps/uclinux.c
+++ b/drivers/mtd/maps/uclinux.c
@@ -23,12 +23,26 @@
 
 /****************************************************************************/
 
+#ifdef CONFIG_MTD_ROM
+#define MAP_NAME "rom"
+#else
+#define MAP_NAME "ram"
+#endif
+
+/*
+ * Blackfin uses uclinux_ram_map during startup, so it must not be static.
+ * Provide a dummy declaration to make sparse happy.
+ */
+extern struct map_info uclinux_ram_map;
+
 struct map_info uclinux_ram_map = {
-	.name = "RAM",
-	.phys = (unsigned long)__bss_stop,
+	.name = MAP_NAME,
 	.size = 0,
 };
 
+static unsigned long physaddr = -1;
+module_param(physaddr, ulong, S_IRUGO);
+
 static struct mtd_info *uclinux_ram_mtdinfo;
 
 /****************************************************************************/
@@ -60,11 +74,17 @@ static int __init uclinux_mtd_init(void)
 	struct map_info *mapp;
 
 	mapp = &uclinux_ram_map;
+
+	if (physaddr == -1)
+		mapp->phys = (resource_size_t)__bss_stop;
+	else
+		mapp->phys = physaddr;
+
 	if (!mapp->size)
 		mapp->size = PAGE_ALIGN(ntohl(*((unsigned long *)(mapp->phys + 8))));
 	mapp->bankwidth = 4;
 
-	printk("uclinux[mtd]: RAM probe address=0x%x size=0x%x\n",
+	printk("uclinux[mtd]: probe address=0x%x size=0x%x\n",
 	       	(int) mapp->phys, (int) mapp->size);
 
 	/*
@@ -82,7 +102,7 @@ static int __init uclinux_mtd_init(void)
 
 	simple_map_init(mapp);
 
-	mtd = do_map_probe("map_ram", mapp);
+	mtd = do_map_probe("map_" MAP_NAME, mapp);
 	if (!mtd) {
 		printk("uclinux[mtd]: failed to find a mapping?\n");
 		return(-ENXIO);
@@ -118,6 +138,6 @@ module_exit(uclinux_mtd_cleanup);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>");
-MODULE_DESCRIPTION("Generic RAM based MTD for uClinux");
+MODULE_DESCRIPTION("Generic MTD for uClinux");
 
 /****************************************************************************/