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ARM: davinci: dm646x-evm: use cell nvmem lookup for mac address

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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>
This commit is contained in:
Bartosz Golaszewski 2018-11-13 15:01:13 +01:00 • committed by Sekhar Nori
parent 89c817c417
commit 628c75ddad
1 changed files with 24 additions and 0 deletions
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24
arch/arm/mach-davinci/board-dm646x-evm.c
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@ -32,6 +32,7 @@
#include <linux/mtd/mtd.h> #include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h> #include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
#include <linux/nvmem-provider.h>
#include <linux/clk.h> #include <linux/clk.h>
#include <linux/export.h> #include <linux/export.h>
#include <linux/platform_data/gpio-davinci.h> #include <linux/platform_data/gpio-davinci.h>
@ -342,6 +343,27 @@ static struct pcf857x_platform_data pcf_data = {
* - ... newer boards may have more * - ... 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 = { static struct at24_platform_data eeprom_info = {
.byte_len = (256*1024) / 8, .byte_len = (256*1024) / 8,
.page_size = 64, .page_size = 64,
@ -815,6 +837,8 @@ static __init void evm_init(void)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret); pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
#ifdef CONFIG_I2C #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(); evm_init_i2c();
#endif #endif