[MTD] LPDDR extended physmap driver to support LPDDR flash

Physmap is a generic map driver for different platforms and flash types.
We added support of LPDDR to physmap.
All changes here are related to introduction of new pfow_base parameter.
This parameter is valid in case of LPDDR chips only.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Acked-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 3788a54..0225cbb 100644 (file)
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -10,8 +10,8 @@ config MTD_COMPLEX_MAPPINGS
          paged mappings of flash chips.
 
 config MTD_PHYSMAP
-       tristate "CFI Flash device in physical memory map"
-       depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM
+       tristate "Flash device in physical memory map"
+       depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_LPDDR
        help
          This provides a 'mapping' driver which allows the NOR Flash and
          ROM driver code to communicate with chips which are mapped

diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index d3a2acc..8774366 100644 (file)
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -68,7 +68,12 @@ static int physmap_flash_remove(struct platform_device *dev)
        return 0;
 }
 
-static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", NULL };
+static const char *rom_probe_types[] = {
+                                       "cfi_probe",
+                                       "jedec_probe",
+                                       "qinfo_probe",
+                                       "map_rom",
+                                       NULL };
 #ifdef CONFIG_MTD_PARTITIONS
 static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
 #endif
@@ -117,6 +122,7 @@ static int physmap_flash_probe(struct platform_device *dev)
                info->map[i].size = dev->resource[i].end - dev->resource[i].start + 1;
                info->map[i].bankwidth = physmap_data->width;
                info->map[i].set_vpp = physmap_data->set_vpp;
+               info->map[i].pfow_base = physmap_data->pfow_base;
 
                info->map[i].virt = devm_ioremap(&dev->dev, info->map[i].phys,
                                                 info->map[i].size);

diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index c8e63a5..76f7cab 100644 (file)
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -24,6 +24,7 @@ struct physmap_flash_data {
        unsigned int            width;
        void                    (*set_vpp)(struct map_info *, int);
        unsigned int            nr_parts;
+       unsigned int            pfow_base;
        struct mtd_partition    *parts;
 };