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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2018-11-13 17:01:15 +0300
committerSekhar Nori <nsekhar@ti.com>2018-12-06 13:49:50 +0300
commit32feb9481ffd71c09b642a2f99c1cc899643a4c6 (patch)
tree40d5304b45cac5e6cd9dd8735b7fda92c13791b1
parentc85efcc60a892210aa10688d5de1f997d5cad799 (diff)
downloadlinux-32feb9481ffd71c09b642a2f99c1cc899643a4c6.tar.xz
ARM: davinci: mityomapl138: 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>
-rw-r--r--arch/arm/mach-davinci/board-mityomapl138.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 2933e0c87cfa..8df16e81b69e 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -15,6 +15,7 @@
#include <linux/console.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
+#include <linux/nvmem-provider.h>
#include <linux/regulator/machine.h>
#include <linux/i2c.h>
#include <linux/platform_data/at24.h>
@@ -161,6 +162,31 @@ bad_config:
mityomapl138_cpufreq_init(partnum);
}
+/*
+ * We don't define a cell for factory config as it will be accessed from the
+ * board file using the nvmem notifier chain.
+ */
+static struct nvmem_cell_info mityomapl138_nvmem_cells[] = {
+ {
+ .name = "macaddr",
+ .offset = 0x64,
+ .bytes = ETH_ALEN,
+ }
+};
+
+static struct nvmem_cell_table mityomapl138_nvmem_cell_table = {
+ .nvmem_name = "1-00500",
+ .cells = mityomapl138_nvmem_cells,
+ .ncells = ARRAY_SIZE(mityomapl138_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup mityomapl138_nvmem_cell_lookup = {
+ .nvmem_name = "1-00500",
+ .cell_name = "macaddr",
+ .dev_id = "davinci_emac.1",
+ .con_id = "mac-address",
+};
+
static struct at24_platform_data mityomapl138_fd_chip = {
.byte_len = 256,
.page_size = 8,
@@ -543,6 +569,9 @@ static void __init mityomapl138_init(void)
davinci_serial_init(da8xx_serial_device);
+ nvmem_add_cell_table(&mityomapl138_nvmem_cell_table);
+ nvmem_add_cell_lookups(&mityomapl138_nvmem_cell_lookup, 1);
+
ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata);
if (ret)
pr_warn("i2c0 registration failed: %d\n", ret);