Subject: [PATCH v2 06/25] ARM: davinci: da830-evm: use cell nvmem lookup for mac address

From: Bartosz Golaszewski <[email-masked]>
Date: Tue, 13 Nov 2018 15:01:14 +0100

From: Bartosz Golaszewski <[email-masked]>

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 <[email-masked]>
---
 arch/arm/mach-davinci/board-da830-evm.c | 26 +++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 7d8ab36ff83d..e52ec1619b70 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -30,6 +30,7 @@
 #include <linux/platform_data/usb-davinci.h>
 #include <linux/platform_data/ti-aemif.h>
 #include <linux/regulator/machine.h>
+#include <linux/nvmem-provider.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -435,6 +436,27 @@ static inline void da830_evm_init_lcdc(int mux_mode)
 static inline void da830_evm_init_lcdc(int mux_mode) { }
 #endif
 
+static struct nvmem_cell_info da830_evm_nvmem_cells[] = {
+	{
+		.name		= "macaddr",
+		.offset		= 0x7f00,
+		.bytes		= ETH_ALEN,
+	}
+};
+
+static struct nvmem_cell_table da830_evm_nvmem_cell_table = {
+	.nvmem_name	= "1-00500",
+	.cells		= da830_evm_nvmem_cells,
+	.ncells		= ARRAY_SIZE(da830_evm_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup da830_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 da830_evm_i2c_eeprom_info = {
 	.byte_len	= SZ_256K / 8,
 	.page_size	= 64,
@@ -620,6 +642,10 @@ static __init void da830_evm_init(void)
 			__func__, ret);
 
 	davinci_serial_init(da8xx_serial_device);
+
+	nvmem_add_cell_table(&da830_evm_nvmem_cell_table);
+	nvmem_add_cell_lookups(&da830_evm_nvmem_cell_lookup, 1);
+
 	i2c_register_board_info(1, da830_evm_i2c_devices,
 			ARRAY_SIZE(da830_evm_i2c_devices));
 
-- 
2.19.1