From patchwork Tue Sep 6 06:53:43 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 1125652 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p866tKUB010952 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 6 Sep 2011 06:55:40 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1R0pYE-0007CI-NN; Tue, 06 Sep 2011 06:54:30 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1R0pYE-00030c-AP; Tue, 06 Sep 2011 06:54:30 +0000 Received: from eu1sys200aog119.obsmtp.com ([207.126.144.147]) by canuck.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1R0pYB-00030F-91; Tue, 06 Sep 2011 06:54:28 +0000 Received: from beta.dmz-us.st.com ([167.4.1.35]) (using TLSv1) by eu1sys200aob119.postini.com ([207.126.147.11]) with SMTP ID DSNKTmXDlCmJnDsWogm8l8mT6VTiN+oTR6a+@postini.com; Tue, 06 Sep 2011 06:54:26 UTC Received: from zeta.dmz-us.st.com (ns4.st.com [167.4.16.71]) by beta.dmz-us.st.com (STMicroelectronics) with ESMTP id A803F3A; Tue, 6 Sep 2011 06:53:50 +0000 (GMT) Received: from relay1.stm.gmessaging.net (unknown [10.230.100.17]) by zeta.dmz-us.st.com (STMicroelectronics) with ESMTP id 0DDF349; Tue, 6 Sep 2011 06:53:50 +0000 (GMT) Received: from exdcvycastm004.EQ1STM.local (alteon-source-exch [10.230.100.61]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "exdcvycastm004", Issuer "exdcvycastm004" (not verified)) by relay1.stm.gmessaging.net (Postfix) with ESMTPS id 9135E24C080; Tue, 6 Sep 2011 08:53:45 +0200 (CEST) Received: from localhost.localdomain (10.230.100.153) by smtp.stericsson.com (10.230.100.2) with Microsoft SMTP Server (TLS) id 8.3.83.0; Tue, 6 Sep 2011 08:53:49 +0200 From: Linus Walleij To: David Woodhouse , Artem Bityutskiy , Subject: [PATCH v4] mach-realview: expose PB1176 ROM using physmap and map_rom Date: Tue, 6 Sep 2011 08:53:43 +0200 Message-ID: <1315292023-4125-1-git-send-email-linus.walleij@stericsson.com> X-Mailer: git-send-email 1.7.3.2 MIME-Version: 1.0 X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110906_025427_570584_07774DF1 X-CRM114-Status: GOOD ( 17.63 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [207.126.144.147 listed in list.dnswl.org] Cc: Linus Walleij , Lee Jones , Linus Walleij , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Tue, 06 Sep 2011 06:55:41 +0000 (UTC) From: Linus Walleij This exposes the PB1176 ROM if you compile in the MTD physmap mapping and also the map_rom chiptype. Signed-off-by: Linus Walleij --- arch/arm/mach-realview/include/mach/board-pb1176.h | 1 + arch/arm/mach-realview/realview_pb1176.c | 45 ++++++++++++++++---- 2 files changed, 38 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-realview/include/mach/board-pb1176.h b/arch/arm/mach-realview/include/mach/board-pb1176.h index 002ab5d..2a15fef 100644 --- a/arch/arm/mach-realview/include/mach/board-pb1176.h +++ b/arch/arm/mach-realview/include/mach/board-pb1176.h @@ -70,6 +70,7 @@ #define REALVIEW_DC1176_GIC_CPU_BASE 0x10120000 /* GIC CPU interface, on devchip */ #define REALVIEW_DC1176_GIC_DIST_BASE 0x10121000 /* GIC distributor, on devchip */ +#define REALVIEW_DC1176_ROM_BASE 0x10200000 /* 16KiB NRAM preudo-ROM, on devchip */ #define REALVIEW_PB1176_GIC_CPU_BASE 0x10040000 /* GIC CPU interface, on FPGA */ #define REALVIEW_PB1176_GIC_DIST_BASE 0x10041000 /* GIC distributor, on FPGA */ #define REALVIEW_PB1176_L220_BASE 0x10110000 /* L220 registers */ diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c index ad5671a..dfbaeca 100644 --- a/arch/arm/mach-realview/realview_pb1176.c +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -26,6 +26,8 @@ #include #include #include +#include +#include #include #include @@ -204,22 +206,48 @@ static struct amba_device *amba_devs[] __initdata = { * RealView PB1176 platform devices */ static struct resource realview_pb1176_flash_resources[] = { - [0] = { + { .start = REALVIEW_PB1176_FLASH_BASE, .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }, - [1] = { +#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH + { .start = REALVIEW_PB1176_SEC_FLASH_BASE, .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }, -}; -#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH -#define PB1176_FLASH_BLOCKS 2 -#else -#define PB1176_FLASH_BLOCKS 1 #endif +}; + +static struct physmap_flash_data pb1176_rom_pdata = { + .probe_type = "map_rom", + .width = 4, + .nr_parts = 0, +}; + +static struct resource pb1176_rom_resources[] = { + /* + * This exposes the PB1176 DevChip ROM as an MTD ROM mapping. + * The reference manual states that this is actually a pseudo-ROM + * programmed in NVRAM. + */ + { + .start = REALVIEW_DC1176_ROM_BASE, + .end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device pb1176_rom_device = { + .name = "physmap-flash", + .id = -1, + .num_resources = ARRAY_SIZE(pb1176_rom_resources), + .resource = pb1176_rom_resources, + .dev = { + .platform_data = &pb1176_rom_pdata, + }, +}; static struct resource realview_pb1176_smsc911x_resources[] = { [0] = { @@ -338,7 +366,8 @@ static void __init realview_pb1176_init(void) #endif realview_flash_register(realview_pb1176_flash_resources, - PB1176_FLASH_BLOCKS); + ARRAY_SIZE(realview_pb1176_flash_resources)); + platform_device_register(&pb1176_rom_device); realview_eth_register(NULL, realview_pb1176_smsc911x_resources); platform_device_register(&realview_i2c_device); realview_usb_register(realview_pb1176_isp1761_resources);