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 4.92.2 #3 (Red Hat Linux)) id 1iAC4t-0003zI-Tw for barebox@lists.infradead.org; Tue, 17 Sep 2019 11:55:29 +0000 From: Ahmad Fatoum Date: Tue, 17 Sep 2019 13:55:13 +0200 Message-Id: <20190917115518.14953-2-a.fatoum@pengutronix.de> In-Reply-To: <20190917115518.14953-1-a.fatoum@pengutronix.de> References: <20190917115518.14953-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 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: [PATCH v2 1/6] ARM: Layerscape: add bootm handler for images To: barebox@lists.infradead.org Cc: Ahmad Fatoum The layerscape images are preceeded by a RCW and PBI, which are interpreted by the Layerscape Hardware Pre-Bootloader and aren't executable as ARM code. To maintain the ability to network boot them, add a bootm handler that skips the fixed-size header. Signed-off-by: Ahmad Fatoum --- arch/arm/mach-layerscape/Makefile | 1 + arch/arm/mach-layerscape/pblimage.c | 58 +++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) create mode 100644 arch/arm/mach-layerscape/pblimage.c diff --git a/arch/arm/mach-layerscape/Makefile b/arch/arm/mach-layerscape/Makefile index 8a814f944161..854a327c9125 100644 --- a/arch/arm/mach-layerscape/Makefile +++ b/arch/arm/mach-layerscape/Makefile @@ -5,3 +5,4 @@ obj-y += icid.o obj-pbl-y += boot.o pbl-y += xload-qspi.o xload.o obj-$(CONFIG_ARCH_LAYERSCAPE_PPA) += ppa.o ppa-entry.o +obj-$(CONFIG_BOOTM) += pblimage.o diff --git a/arch/arm/mach-layerscape/pblimage.c b/arch/arm/mach-layerscape/pblimage.c new file mode 100644 index 000000000000..deaf7143b92b --- /dev/null +++ b/arch/arm/mach-layerscape/pblimage.c @@ -0,0 +1,58 @@ +#define pr_fmt(fmt) "pblimage: " fmt + +#include +#include +#include +#include +#include + +#define BAREBOX_STAGE2_OFFSET SZ_128K + +static int do_bootm_layerscape_pblimage(struct image_data *data) +{ + void (*barebox)(unsigned long x0, unsigned long x1, unsigned long x2, + unsigned long x3); + resource_size_t start, end; + int ret; + + ret = memory_bank_first_find_space(&start, &end); + if (ret) + return ret; + + ret = bootm_load_os(data, start); + if (ret) + return ret; + + barebox = (void*)start + BAREBOX_STAGE2_OFFSET; + + if (data->verbose) + printf("Loaded barebox image to 0x%08lx\n", + (unsigned long)barebox); + + shutdown_barebox(); + + barebox(0, 0, 0, 0); + + return -EIO; +} + +static struct image_handler image_handler_layerscape_pbl_image = { + .name = "Layerscape image", + .bootm = do_bootm_layerscape_pblimage, + .filetype = filetype_layerscape_image, +}; + +static struct image_handler image_handler_layerscape_qspi_pbl_image = { + .name = "Layerscape QSPI image", + .bootm = do_bootm_layerscape_pblimage, + .filetype = filetype_layerscape_qspi_image, +}; + +static int layerscape_register_pbl_image_handler(void) +{ + register_image_handler(&image_handler_layerscape_pbl_image); + register_image_handler(&image_handler_layerscape_qspi_pbl_image); + + return 0; +} +late_initcall(layerscape_register_pbl_image_handler); -- 2.23.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox