[PATCH v2 05/25] ARM: davinci: dm646x-evm: use cell nvmem lookup for mac address

Bartosz Golaszewski
2018-11-13T14:02:08Z

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-dm646x-evm.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 3e5ee09ee717..8d5be6dd2019 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -32,6 +32,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
+#include <linux/nvmem-provider.h>
#include <linux/clk.h>
#include <linux/export.h>
#include <linux/platform_data/gpio-davinci.h>
@@ -342,6 +343,27 @@ static struct pcf857x_platform_data pcf_data = {
* - ... newer boards may have more
*/

+static struct nvmem_cell_info dm646x_evm_nvmem_cells[] = {
+ {
+ .name = "macaddr",
+ .offset = 0x7f00,
+ .bytes = ETH_ALEN,
+ }
+};
+
+static struct nvmem_cell_table dm646x_evm_nvmem_cell_table = {
+ .nvmem_name = "1-00500",
+ .cells = dm646x_evm_nvmem_cells,
+ .ncells = ARRAY_SIZE(dm646x_evm_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup dm646x_evm_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,
@@ -815,6 +837,8 @@ static __init void evm_init(void)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);

#ifdef CONFIG_I2C
+ nvmem_add_cell_table(&dm646x_evm_nvmem_cell_table);
+ nvmem_add_cell_lookups(&dm646x_evm_nvmem_cell_lookup, 1);
evm_init_i2c();
#endif

--
2.19.1