linux-kernel - [PATCH 12/28] ARM: davinci: da850-evm: use nvmem lookup for mac address

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Date:   Wed,  8 Aug 2018 17:31:34 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Jonathan Corbet <corbet@....net>, Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Naren <naren.kernel@...il.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Lukas Wunner <lukas@...ner.de>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        Sven Van Asbroeck <svendev@...x.com>,
        Paolo Abeni <pabeni@...hat.com>, Alban Bedel <albeu@...e.fr>,
        Rob Herring <robh@...nel.org>,
        David Lechner <david@...hnology.com>,
        Andrew Lunn <andrew@...n.ch>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-omap@...r.kernel.org,
        netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 12/28] ARM: davinci: da850-evm: use nvmem lookup for mac address

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

We now support nvmem lookups for machine code. Add a lookup for
mac-address.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 arch/arm/mach-davinci/board-da850-evm.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 6d5beb11bd96..5a634a04ec69 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -29,6 +29,7 @@
 #include <linux/mtd/rawnand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
+#include <linux/nvmem-provider.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/gpio-davinci.h>
 #include <linux/platform_data/mtd-davinci.h>
@@ -99,6 +100,19 @@ static struct mtd_partition da850evm_spiflash_part[] = {
 	},
 };
 
+static struct nvmem_cell_lookup da850evm_mac_address_cell = {
+	.info = {
+		.name = "mac-address",
+		.offset = 0x0,
+		.bytes = ETH_ALEN,
+	},
+	/*
+	 * The nvmem name differs from the partition name because of the
+	 * internal works of the nvmem framework.
+	 */
+	.nvmem_name = "MAC-Address0",
+};
+
 static struct flash_platform_data da850evm_spiflash_data = {
 	.name		= "m25p80",
 	.parts		= da850evm_spiflash_part,
@@ -1447,6 +1461,8 @@ static __init void da850_evm_init(void)
 		pr_warn("%s: spi info registration failed: %d\n", __func__,
 			ret);
 
+	nvmem_add_lookup_table(&da850evm_mac_address_cell, 1);
+
 	ret = da8xx_register_spi_bus(1, ARRAY_SIZE(da850evm_spi_info));
 	if (ret)
 		pr_warn("%s: SPI 1 registration failed: %d\n", __func__, ret);
-- 
2.18.0