From patchwork Tue Jun 19 06:45:14 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajeshwari Birje X-Patchwork-Id: 165664 X-Patchwork-Delegate: hs@denx.de Return-Path: 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]) by ozlabs.org (Postfix) with ESMTP id 67381B7003 for ; Tue, 19 Jun 2012 16:41:39 +1000 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 92E83280C9; Tue, 19 Jun 2012 08:41:28 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Es4Zyiklzy67; Tue, 19 Jun 2012 08:41:28 +0200 (CEST) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id A74A4280CD; Tue, 19 Jun 2012 08:41:12 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 288B3280B8 for ; Tue, 19 Jun 2012 08:41:06 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iC7ED7YL0LUO for ; Tue, 19 Jun 2012 08:41:05 +0200 (CEST) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by theia.denx.de (Postfix) with ESMTP id 125A9280A0 for ; Tue, 19 Jun 2012 08:40:59 +0200 (CEST) Received: from epcpsbgm1.samsung.com (mailout1.samsung.com [203.254.224.24]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0M5U00M9XQEDLQ00@mailout1.samsung.com> for u-boot@lists.denx.de; Tue, 19 Jun 2012 15:40:59 +0900 (KST) X-AuditID: cbfee61a-b7f9f6d0000016a8-a8-4fe01efa7bc3 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 9F.F5.05800.AFE10EF4; Tue, 19 Jun 2012 15:40:59 +0900 (KST) Received: from rajeshwari-linux.sisodomain.com ([107.108.215.115]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0M5U00BUEQJL3P50@mmp2.samsung.com> for u-boot@lists.denx.de; Tue, 19 Jun 2012 15:40:58 +0900 (KST) From: Rajeshwari Shinde To: u-boot@lists.denx.de Date: Tue, 19 Jun 2012 12:15:14 +0530 Message-id: <1340088319-10072-4-git-send-email-rajeshwari.s@samsung.com> X-Mailer: git-send-email 1.7.4.4 In-reply-to: <1340088319-10072-1-git-send-email-rajeshwari.s@samsung.com> References: <1340088319-10072-1-git-send-email-rajeshwari.s@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrHJMWRmVeSWpSXmKPExsVy+t9jQd3fcg/8DSZUW7zd28nuwOhx9s4O xgDGKC6blNSczLLUIn27BK6MhZfkC65IVDTsf8PWwPhApIuRk0NCwETi1qIfbBC2mMSFe+vB bCGB6YwSn65JdDFyAdmrmCS2fTjLApJgEzCS2HpyGiOILSIgIfGr/yqYzSwwhVFi1+rQLkYO DmEBJ4nD3V4gJouAqkTfNDmQCl4BD4nGnmWMEKsUJI5N/coKYnMKeEps+rCQCWKth8SeF+fZ JzDyLmBkWMUomlqQXFCclJ5rqFecmFtcmpeul5yfu4kR7OtnUjsYVzZYHGIU4GBU4uE9CAwB IdbEsuLK3EOMEhzMSiK8q/7f9xfiTUmsrEotyo8vKs1JLT7EKM3BoiTO22R9wV9IID2xJDU7 NbUgtQgmy8TBKdXA6FG4avaxKJ4FnGFdey476JVX8J9d8zTmDgP3wadJEknz763K5pjZl3Tk mIra/C7GYv6Cnr5luf0/nVnSpwjF3kro5l+c9q/axM/8gmEa7+2l1aUqm8ObfnAL5D3ec+PP P67JP/fxHxReF1m4umzayVsKJ8Vef3mjsmyNVrXL+bVx7t9LY2asUWIpzkg01GIuKk4EAK6u 3RXxAQAA X-TM-AS-MML: No Cc: patches@linaro.org, alim.akhtar@samsung.com, hs@denx.de Subject: [U-Boot] [PATCH 3/8 V3] EXYNOS: PINMUX: Add pinmux support for I2C X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de This patch adds pinmux code for I2C. Signed-off-by: Rajeshwari Shinde Acked-by: Simon Glass --- Changes in V2: - Aligned the pinmux functionality as per the latest comments. Changes in V3: - None arch/arm/cpu/armv7/exynos/pinmux.c | 52 +++++++++++++++++++++++++++++ arch/arm/include/asm/arch-exynos/periph.h | 8 ++++ 2 files changed, 60 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index d2b7d2c..d28f055 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -184,6 +184,48 @@ static void exynos5_sromc_config(int flags) } } +static void exynos5_i2c_config(int peripheral, int flags) +{ + + struct exynos5_gpio_part1 *gpio1 = + (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1(); + + switch (peripheral) { + case PERIPH_ID_I2C0: + s5p_gpio_cfg_pin(&gpio1->b3, 0, GPIO_FUNC(0x2)); + s5p_gpio_cfg_pin(&gpio1->b3, 1, GPIO_FUNC(0x2)); + break; + case PERIPH_ID_I2C1: + s5p_gpio_cfg_pin(&gpio1->b3, 2, GPIO_FUNC(0x2)); + s5p_gpio_cfg_pin(&gpio1->b3, 3, GPIO_FUNC(0x2)); + break; + case PERIPH_ID_I2C2: + s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C3: + s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C4: + s5p_gpio_cfg_pin(&gpio1->a2, 0, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a2, 1, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C5: + s5p_gpio_cfg_pin(&gpio1->a2, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a2, 3, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C6: + s5p_gpio_cfg_pin(&gpio1->b1, 3, GPIO_FUNC(0x4)); + s5p_gpio_cfg_pin(&gpio1->b1, 4, GPIO_FUNC(0x4)); + break; + case PERIPH_ID_I2C7: + s5p_gpio_cfg_pin(&gpio1->b2, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->b2, 3, GPIO_FUNC(0x3)); + break; + } +} + static int exynos5_pinmux_config(int peripheral, int flags) { switch (peripheral) { @@ -201,6 +243,16 @@ static int exynos5_pinmux_config(int peripheral, int flags) case PERIPH_ID_SROMC: exynos5_sromc_config(flags); break; + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + case PERIPH_ID_I2C4: + case PERIPH_ID_I2C5: + case PERIPH_ID_I2C6: + case PERIPH_ID_I2C7: + exynos5_i2c_config(peripheral, flags); + break; default: debug("%s: invalid peripheral %d", __func__, peripheral); return -1; diff --git a/arch/arm/include/asm/arch-exynos/periph.h b/arch/arm/include/asm/arch-exynos/periph.h index 5db25aa..b861d7d 100644 --- a/arch/arm/include/asm/arch-exynos/periph.h +++ b/arch/arm/include/asm/arch-exynos/periph.h @@ -30,6 +30,14 @@ * */ enum periph_id { + PERIPH_ID_I2C0, + PERIPH_ID_I2C1, + PERIPH_ID_I2C2, + PERIPH_ID_I2C3, + PERIPH_ID_I2C4, + PERIPH_ID_I2C5, + PERIPH_ID_I2C6, + PERIPH_ID_I2C7, PERIPH_ID_SDMMC0, PERIPH_ID_SDMMC1, PERIPH_ID_SDMMC2,