ARM: davinci: dm850-evm: use cell nvmem lookup for mac address

We now support nvmem lookups and cell definitions for machine code.
Add relevant data structures for the mac-address stored in at24 EEPROM.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index e1a949b47306d2eaf93a14b76e0ac720373e1c10..bac2162e21537a927ecd71de2ae47939ab2f61bc 100644 (file)
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -28,6 +28,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/rawnand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/nvmem-provider.h>
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/gpio-davinci.h>
@@ -100,6 +101,31 @@ static struct mtd_partition da850evm_spiflash_part[] = {
        },
 };
 
+static struct nvmem_cell_info da850evm_nvmem_cells[] = {
+       {
+               .name           = "macaddr",
+               .offset         = 0x0,
+               .bytes          = ETH_ALEN,
+       }
+};
+
+static struct nvmem_cell_table da850evm_nvmem_cell_table = {
+       /*
+        * The nvmem name differs from the partition name because of the
+        * internal works of the nvmem framework.
+        */
+       .nvmem_name     = "MAC-Address0",
+       .cells          = da850evm_nvmem_cells,
+       .ncells         = ARRAY_SIZE(da850evm_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup da850evm_nvmem_cell_lookup = {
+       .nvmem_name     = "MAC-Address0",
+       .cell_name      = "macaddr",
+       .dev_id         = "davinci_emac.1",
+       .con_id         = "mac-address",
+};
+
 static struct flash_platform_data da850evm_spiflash_data = {
        .name           = "m25p80",
        .parts          = da850evm_spiflash_part,
@@ -1395,6 +1421,9 @@ static __init void da850_evm_init(void)
 
        davinci_serial_init(da8xx_serial_device);
 
+       nvmem_add_cell_table(&da850evm_nvmem_cell_table);
+       nvmem_add_cell_lookups(&da850evm_nvmem_cell_lookup, 1);
+
        i2c_register_board_info(1, da850_evm_i2c_devices,
                        ARRAY_SIZE(da850_evm_i2c_devices));