From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fTLOf-0002Mk-Bc for barebox@lists.infradead.org; Thu, 14 Jun 2018 06:07:37 +0000 Date: Thu, 14 Jun 2018 08:06:01 +0200 From: Sascha Hauer Message-ID: <20180614060601.mzcga35ajznxupm7@pengutronix.de> References: <20180607195552.15246-1-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20180607195552.15246-1-o.rempel@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH v2 1/3] MIPS: ath79: provide driver for Atheros ART partition To: Oleksij Rempel Cc: barebox@lists.infradead.org, Oleksij Rempel On Thu, Jun 07, 2018 at 09:55:50PM +0200, Oleksij Rempel wrote: > From: Oleksij Rempel > > this partition contains calibration data for WiFi and > some board specific data, like MAC address. > > For now we care only about MAC. > > Signed-off-by: Oleksij Rempel > --- Applied, thanks Sascha > arch/mips/mach-ath79/Makefile | 1 + > arch/mips/mach-ath79/art.c | 112 ++++++++++++++++++++++++++++++++++ > 2 files changed, 113 insertions(+) > create mode 100644 arch/mips/mach-ath79/art.c > > diff --git a/arch/mips/mach-ath79/Makefile b/arch/mips/mach-ath79/Makefile > index 3772daeba..b827b363c 100644 > --- a/arch/mips/mach-ath79/Makefile > +++ b/arch/mips/mach-ath79/Makefile > @@ -1,2 +1,3 @@ > obj-y += reset.o > obj-y += bbu.o > +obj-y += art.o > diff --git a/arch/mips/mach-ath79/art.c b/arch/mips/mach-ath79/art.c > new file mode 100644 > index 000000000..984d08736 > --- /dev/null > +++ b/arch/mips/mach-ath79/art.c > @@ -0,0 +1,112 @@ > +// SPDX-License-Identifier: GPL-2. > +/* > + * Copyright (c) 2018 Oleksij Rempel > + */ > + > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define AR93000_EPPROM_OFFSET 0x1000 > + > +struct ar9300_eeprom { > + u8 eeprom_version; > + u8 template_version; > + u8 mac_addr[6]; > +}; > + > +static int art_set_mac(struct device_d *dev, struct ar9300_eeprom *eeprom) > +{ > + struct device_node *node = dev->device_node; > + struct device_node *rnode; > + > + if (!node) > + return -ENOENT; > + > + rnode = of_parse_phandle_from(node, NULL, > + "barebox,provide-mac-address", 0); > + if (!rnode) > + return -ENOENT; > + > + of_eth_register_ethaddr(rnode, &eeprom->mac_addr[0]); > + > + return 0; > +} > + > +static int art_read_mac(struct device_d *dev, const char *file) > +{ > + int fd, rbytes; > + struct ar9300_eeprom eeprom; > + > + fd = open_and_lseek(file, O_RDONLY, AR93000_EPPROM_OFFSET); > + if (fd < 0) { > + dev_err(dev, "Failed to open eeprom path %s %d\n", > + file, fd); > + return fd; > + } > + > + rbytes = read_full(fd, &eeprom, sizeof(eeprom)); > + close(fd); > + if (rbytes < sizeof(eeprom)) { > + dev_err(dev, "Failed to read %s\n", file); > + return rbytes < 0 ? rbytes : -EIO; > + } > + > + dev_dbg(dev, "ART version: %x.%x\n", > + eeprom.eeprom_version, eeprom.template_version); > + dev_dbg(dev, "mac: %02x:%02x:%02x:%02x:%02x:%02x\n", > + eeprom.mac_addr[0], > + eeprom.mac_addr[1], > + eeprom.mac_addr[2], > + eeprom.mac_addr[3], > + eeprom.mac_addr[4], > + eeprom.mac_addr[5]); > + > + if (!is_valid_ether_addr(&eeprom.mac_addr[0])) { > + dev_err(dev, "bad MAC addr\n"); > + return -EILSEQ; > + } > + > + return art_set_mac(dev, &eeprom); > +} > + > +static int art_probe(struct device_d *dev) > +{ > + char *path; > + int ret; > + > + dev_dbg(dev, "found ART partition\n"); > + > + ret = of_find_path(dev->device_node, "device-path", &path, 0); > + if (ret) { > + dev_err(dev, "can't find path\n"); > + return ret; > + } > + > + return art_read_mac(dev, path); > +} > + > +static struct of_device_id art_dt_ids[] = { > + { > + .compatible = "qca,art", > + }, { > + /* sentinel */ > + } > +}; > + > +static struct driver_d art_driver = { > + .name = "qca-art", > + .probe = art_probe, > + .of_compatible = art_dt_ids, > +}; > + > +static int art_of_driver_init(void) > +{ > + platform_driver_register(&art_driver); > + > + return 0; > +} > +late_initcall(art_of_driver_init); > -- > 2.17.1 > > > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox