From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.phycard.co.uk ([217.6.246.34] helo=root.phytec.de) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZC0Jv-0000RM-3c for barebox@lists.infradead.org; Mon, 06 Jul 2015 06:56:04 +0000 Received: from idefix.phytec.de (idefix.phytec.de [172.16.0.10]) by root.phytec.de (Postfix) with ESMTP id 3D0C7A002F6 for ; Mon, 6 Jul 2015 08:57:12 +0200 (CEST) From: Jan Remmet Date: Mon, 6 Jul 2015 08:55:26 +0200 Message-Id: <1436165726-33606-1-git-send-email-j.remmet@phytec.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 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: [PATCH] ARM: am33xx: netboot use ramfs To: barebox@lists.infradead.org Older tftp server don't send the file size. Then tftpfs needs temporary place to store the file. mount ramfs and then tftpfs in a own mount point Signed-off-by: Jan Remmet Tested-by: Wadim Egorov --- arch/arm/mach-omap/Kconfig | 1 + arch/arm/mach-omap/xload.c | 30 ++++++++++++++++++++++++++---- 2 files changed, 27 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap/Kconfig b/arch/arm/mach-omap/Kconfig index af35975..aeed79f 100644 --- a/arch/arm/mach-omap/Kconfig +++ b/arch/arm/mach-omap/Kconfig @@ -106,6 +106,7 @@ config AM33XX_NET_BOOT bool "enable AM335x network boot" select ENVIRONMENT_VARIABLES select NET_DHCP + select FS_RAMFS select FS_TFTP select DRIVER_NET_CPSW default n diff --git a/arch/arm/mach-omap/xload.c b/arch/arm/mach-omap/xload.c index 4a0714e..b0ce1d6 100644 --- a/arch/arm/mach-omap/xload.c +++ b/arch/arm/mach-omap/xload.c @@ -229,13 +229,16 @@ static void *omap_serial_boot(void){ return buf; } +#define TFTP_MOUNT "/.tftp" + static void *am33xx_net_boot(void) { void *buf = NULL; int err; int len; struct dhcp_req_param dhcp_param; - const char *bootfile; + const char *bootfile, *ip; + char *file; am33xx_register_ethaddr(0, 0); @@ -247,7 +250,22 @@ static void *am33xx_net_boot(void) return NULL; } - err = mount(ip_to_string(net_get_serverip()), "tftp", "/", NULL); + /* + * Older tftp server don't send the file size. + * Then tftpfs needs temporary place to store the file. + */ + err = mount("none", "ramfs", "/", NULL); + if (err < 0) { + printf("failed to mount ramfs\n"); + return NULL; + } + + err = make_directory(TFTP_MOUNT); + if (err) + return NULL; + + ip = ip_to_string(net_get_serverip()); + err = mount(ip, "tftp", TFTP_MOUNT, NULL); if (err < 0) { printf("Unable to mount.\n"); return NULL; @@ -259,11 +277,15 @@ static void *am33xx_net_boot(void) return NULL; } - buf = read_file(bootfile, &len); + file = asprintf("%s/%s", TFTP_MOUNT, bootfile); + + buf = read_file(file, &len); if (!buf) printf("could not read %s.\n", bootfile); - umount("/"); + free(file); + + umount(TFTP_MOUNT); return buf; } -- 1.9.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox