[PATCH v2 04/25] ARM: davinci: dm644x-evm: use cell nvmem lookup for mac address

Bartosz Golaszewski
2018-11-13T14:02:05Z

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>
---
arch/arm/mach-davinci/board-dm644x-evm.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index e4a8f9225d16..e1428115067f 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -22,6 +22,7 @@
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
+#include <linux/nvmem-provider.h>
#include <linux/phy.h>
#include <linux/clk.h>
#include <linux/videodev2.h>
@@ -510,6 +511,27 @@ static struct pcf857x_platform_data pcf_data_u35 = {
* - ... newer boards may have more
*/

+static struct nvmem_cell_info dm644evm_nvmem_cells[] = {
+ {
+ .name = "macaddr",
+ .offset = 0x7f00,
+ .bytes = ETH_ALEN,
+ }
+};
+
+static struct nvmem_cell_table dm644evm_nvmem_cell_table = {
+ .nvmem_name = "1-00500",
+ .cells = dm644evm_nvmem_cells,
+ .ncells = ARRAY_SIZE(dm644evm_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup dm644evm_nvmem_cell_lookup = {
+ .nvmem_name = "1-00500",
+ .cell_name = "macaddr",
+ .dev_id = "davinci_emac.1",
+ .con_id = "mac-address",
+};
+
static struct at24_platform_data eeprom_info = {
.byte_len = (256*1024) / 8,
.page_size = 64,
@@ -842,6 +864,8 @@ static __init void davinci_evm_init(void)
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
#ifdef CONFIG_I2C
+ nvmem_add_cell_table(&dm644evm_nvmem_cell_table);
+ nvmem_add_cell_lookups(&dm644evm_nvmem_cell_lookup, 1);
evm_init_i2c();
davinci_setup_mmc(0, &dm6446evm_mmc_config);
#endif
--
2.19.1