From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.phytec.co.uk ([217.6.246.34] helo=root.phytec.de) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1T8neS-0002cZ-M7 for barebox@lists.infradead.org; Tue, 04 Sep 2012 07:34:26 +0000 Message-ID: <1346744062.4672.3.camel@lws-weitzel> From: Jan Weitzel Date: Tue, 04 Sep 2012 09:34:22 +0200 In-Reply-To: <20120829122125.GF18708@game.jcrosoft.org> References: <1346227318.3280.1.camel@lws-weitzel> <1346231416-28541-1-git-send-email-j.weitzel@phytec.de> <20120829122125.GF18708@game.jcrosoft.org> Mime-Version: 1.0 Reply-To: J.Weitzel@phytec.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-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH v3] xload: get barebox size from barebox_arm_head To: Jean-Christophe PLAGNIOL-VILLARD Cc: barebox@lists.infradead.org Am Mittwoch, den 29.08.2012, 14:21 +0200 schrieb Jean-Christophe PLAGNIOL-VILLARD: > On 11:10 Wed 29 Aug , Jan Weitzel wrote: > > Add functions to read the barebox_arm_head, check barebox magicword > > and read out the barebox image size. > > Create a inital partion of 1Mb to access the barebox image on nand. > > > > Signed-off-by: Jan Weitzel > > --- > > v2: remove fall back if header read fail > > v3: fix header check, rebase master > > > > arch/arm/include/asm/barebox-arm-head.h | 4 ++ > > arch/arm/mach-omap/include/mach/xload.h | 2 +- > > arch/arm/mach-omap/xload.c | 58 ++++++++++++++++++++++++++++-- > > 3 files changed, 59 insertions(+), 5 deletions(-) > > > > diff --git a/arch/arm/include/asm/barebox-arm-head.h b/arch/arm/include/asm/barebox-arm-head.h > > index 2c250e9..1ddfc0f 100644 > > --- a/arch/arm/include/asm/barebox-arm-head.h > > +++ b/arch/arm/include/asm/barebox-arm-head.h > > @@ -1,6 +1,10 @@ > > #ifndef __ASM_ARM_HEAD_H > > #define __ASM_ARM_HEAD_H > > > > +#define ARM_HEAD_SIZE 0x30 > > +#define HEAD_MAGICWORD_OFFSET 0x20 > > +#define HEAD_SIZE_OFFSET 0x2C > > + > > static inline void barebox_arm_head(void) > > { > > __asm__ __volatile__ ( > > diff --git a/arch/arm/mach-omap/include/mach/xload.h b/arch/arm/mach-omap/include/mach/xload.h > > index 844b57f..26f1b68 100644 > > --- a/arch/arm/mach-omap/include/mach/xload.h > > +++ b/arch/arm/mach-omap/include/mach/xload.h > > @@ -1,7 +1,7 @@ > > #ifndef _MACH_XLOAD_H > > #define _MACH_XLOAD_H > > > > -void *omap_xload_boot_nand(int offset, int size); > > +void *omap_xload_boot_nand(int offset); > > void *omap_xload_boot_mmc(void); > > > > enum omap_boot_src { > > diff --git a/arch/arm/mach-omap/xload.c b/arch/arm/mach-omap/xload.c > > index 13024ab..d9765b7 100644 > > --- a/arch/arm/mach-omap/xload.c > > +++ b/arch/arm/mach-omap/xload.c > > @@ -7,16 +7,66 @@ > > #include > > #include > > #include > > +#include > > > > -void *omap_xload_boot_nand(int offset, int size) > > +void *read_image_head(const char *name) > > { > > + void *header = xmalloc(ARM_HEAD_SIZE); > > + struct cdev *cdev; > > int ret; > > - void *to = xmalloc(size); > > + > > + cdev = cdev_open(name, O_RDONLY); > > + if (!cdev) { > > + printf("failed to open partition\n"); > > + return NULL; > > + } > > + > > + ret = cdev_read(cdev, header, ARM_HEAD_SIZE, 0, 0); > > + cdev_close(cdev); > > + > > + if (ret != ARM_HEAD_SIZE) { > > + printf("failed to read from partition\n"); > > + return NULL; > > + } > > + > > + return header; > > +} > > + > > +unsigned int get_image_size(void *head) > > +{ > > + unsigned int ret = 0; > > + unsigned int *psize = head + HEAD_SIZE_OFFSET; > > + const char *pmagic = head + HEAD_MAGICWORD_OFFSET; > > + > > + if (!strcmp(pmagic, "barebox")) > > + ret = *psize; > > + debug("Detected barebox image size %u\n", ret); > factorise the code with filetype What exactly do you mean? I could factorise it by boot source (mmc / nand) with complete omap_xload_boot_nand. Jan > Best Regards, > J. _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox