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GET /api/patches/335243/?format=api
{ "id": 335243, "url": "http://patchwork.ozlabs.org/api/patches/335243/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1396260241-2547-1-git-send-email-prabhakar@freescale.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1396260241-2547-1-git-send-email-prabhakar@freescale.com>", "list_archive_url": null, "date": "2014-03-31T10:04:01", "name": "[U-Boot,03/10] powerpc:Add support of SPL non-relocation", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "733d499eca77e4384308dbbe5e1a8bf7ec3c6d98", "submitter": { "id": 6576, "url": "http://patchwork.ozlabs.org/api/people/6576/?format=api", "name": "Prabhakar Kushwaha", "email": "prabhakar@freescale.com" }, "delegate": { "id": 2666, "url": "http://patchwork.ozlabs.org/api/users/2666/?format=api", "username": "yorksun", "first_name": "York", "last_name": "Sun", "email": "yorksun@freescale.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1396260241-2547-1-git-send-email-prabhakar@freescale.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/335243/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/335243/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Received": [ "from theia.denx.de (theia.denx.de [85.214.87.163])\n\tby ozlabs.org (Postfix) with ESMTP id 08D8C1400B2\n\tfor <incoming@patchwork.ozlabs.org>;\n\tMon, 31 Mar 2014 21:04:33 +1100 (EST)", "from localhost (localhost [127.0.0.1])\n\tby theia.denx.de (Postfix) with ESMTP id 72ECD4B669;\n\tMon, 31 Mar 2014 12:04:32 +0200 (CEST)", "from theia.denx.de ([127.0.0.1])\n\tby localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id sXu-xNsRok6D; 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Mon, 31 Mar 2014 10:04:07 +0000", "from b32579-VirtualBox.ap.freescale.net\n\t(B32579-02-010232132051.ap.freescale.net [10.232.132.51])\tby\n\ttx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id\n\ts2VA428K026895; Mon, 31 Mar 2014 03:04:06 -0700" ], "X-Virus-Scanned": [ "Debian amavisd-new at theia.denx.de", "Debian amavisd-new at theia.denx.de" ], "X-policyd-weight": "NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5\n\tNOT_IN_BL_NJABL=-1.5 (only DNSBL check requested)", "X-Forefront-Antispam-Report": "CIP:70.37.183.190; KIP:(null); UIP:(null);\n\tIPV:NLI; \n\tH:mail.freescale.net; RD:none; EFVD:NLI", "X-SpamScore": "0", "X-BigFish": "VS0(zzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah21bch1fc6hzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dc1h1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h24afh2327h2336h2438h2461h2487h24d7h2516h2545h255eh25cch25f6h2605h268bh1155h)", "From": "Prabhakar Kushwaha <prabhakar@freescale.com>", "To": "<u-boot@lists.denx.de>", "Date": "Mon, 31 Mar 2014 15:34:01 +0530", "Message-ID": "<1396260241-2547-1-git-send-email-prabhakar@freescale.com>", "X-Mailer": "git-send-email 1.7.9.5", "MIME-Version": "1.0", "X-OriginatorOrg": "freescale.com", "X-FOPE-CONNECTOR": [ "Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn%", "Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn%" ], "Cc": "yorksun@freescale.com", "Subject": "[U-Boot] [PATCH 03/10] powerpc:Add support of SPL non-relocation", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.11", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<http://lists.denx.de/mailman/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<http://lists.denx.de/pipermail/u-boot>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<http://lists.denx.de/mailman/listinfo/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "u-boot-bounces@lists.denx.de", "Errors-To": "u-boot-bounces@lists.denx.de" }, "content": "Current SPL code base has BSS section placed after reset_vector. This means\nthey have to relocate to use the global variables. This put an implicit\nrequirement of having SPL size = Memory/2.\n\nTo avoid relocation:\n\t- Move bss_section within SPL range\n\t- Modify relocate_code()\n\nSigned-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>\n---\n README | 3 +++\n arch/powerpc/cpu/mpc85xx/start.S | 2 ++\n arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 12 ++++++++++++\n 3 files changed, 17 insertions(+)", "diff": "diff --git a/README b/README\nindex 7cb7c4f..d8d5f60 100644\n--- a/README\n+++ b/README\n@@ -3310,6 +3310,9 @@ FIT uImage format:\n \t\tcontinuing (the hardware starts execution after just\n \t\tloading the first page rather than the full 4K).\n \n+\t\tCONFIG_SPL_SKIP_RELOCATE\n+\t\tAvoid SPL relocation\n+\n \t\tCONFIG_SPL_NAND_BASE\n \t\tInclude nand_base.c in the SPL. Requires\n \t\tCONFIG_SPL_NAND_DRIVERS.\ndiff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S\nindex 67e071b..c654363 100644\n--- a/arch/powerpc/cpu/mpc85xx/start.S\n+++ b/arch/powerpc/cpu/mpc85xx/start.S\n@@ -1645,6 +1645,7 @@ relocate_code:\n \tmr\tr10,r5\t\t/* Save copy of Destination Address\t*/\n \n \tGET_GOT\n+#ifndef CONFIG_SPL_SKIP_RELOCATE\n \tmr\tr3,r5\t\t\t\t/* Destination Address\t*/\n \tlis\tr4,CONFIG_SYS_MONITOR_BASE@h\t\t/* Source Address\t*/\n \tori\tr4,r4,CONFIG_SYS_MONITOR_BASE@l\n@@ -1735,6 +1736,7 @@ relocate_code:\n \n \tmtlr\tr0\n \tblr\t\t\t\t/* NEVER RETURNS! */\n+#endif\n \t.globl\tin_ram\n in_ram:\n \ndiff --git a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds\nindex 4fad68b..8453f3a 100644\n--- a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds\n+++ b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds\n@@ -57,6 +57,16 @@ SECTIONS\n \t. = ALIGN(8);\n \t__init_begin = .;\n \t__init_end = .;\n+#ifdef CONFIG_SPL_SKIP_RELOCATE\n+\t. = ALIGN(4);\n+\t__bss_start = .;\n+\t.bss : {\n+\t\t*(.sbss*)\n+\t\t*(.bss*)\n+\t}\n+\t. = ALIGN(4);\n+\t__bss_end = .;\n+#endif\n \n /* For ifc, elbc, esdhc, espi, all need the SPL without section .resetvec */\n #ifdef CONFIG_SYS_MPC85XX_NO_RESETVEC\n@@ -86,6 +96,7 @@ SECTIONS\n \t} = 0xffff\n #endif\n \n+#ifndef CONFIG_SPL_SKIP_RELOCATE\n \t/*\n \t * Make sure that the bss segment isn't linked at 0x0, otherwise its\n \t * address won't be updated during relocation fixups.\n@@ -100,4 +111,5 @@ SECTIONS\n \t}\n \t. = ALIGN(4);\n \t__bss_end = .;\n+#endif\n }\n", "prefixes": [ "U-Boot", "03/10" ] }