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[203.254.224.24]) by mx.google.com with ESMTP id qf1si37599877pbc.55.2012.07.05.04.55.36; Thu, 05 Jul 2012 04:55:36 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of rajeshwari.s@samsung.com designates 203.254.224.24 as permitted sender) client-ip=203.254.224.24; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of rajeshwari.s@samsung.com designates 203.254.224.24 as permitted sender) smtp.mail=rajeshwari.s@samsung.com 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 <0M6O001P2RS24K40@mailout1.samsung.com>; Thu, 05 Jul 2012 20:55:35 +0900 (KST) X-AuditID: cbfee61a-b7f616d000004b7e-ed-4ff580b77c38 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id A4.68.19326.7B085FF4; Thu, 05 Jul 2012 20:55:35 +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 <0M6O00E8SRRY5M50@mmp2.samsung.com>; Thu, 05 Jul 2012 20:55:35 +0900 (KST) From: Rajeshwari Shinde To: u-boot@lists.denx.de Cc: patches@linaro.org, alim.akhtar@samsung.com, sjg@chromium.org, hs@denx.de, mk7.kang@samsung.com, chander.kashyap@linaro.org, jy0922.shim@samsung.com Subject: [PATCH 7/7 V5] CONFIG: SMDK5250: I2C: Enable I2C Date: Thu, 05 Jul 2012 17:29:52 +0530 Message-id: <1341489592-24243-8-git-send-email-rajeshwari.s@samsung.com> X-Mailer: git-send-email 1.7.4.4 In-reply-to: <1341489592-24243-1-git-send-email-rajeshwari.s@samsung.com> References: <1341489592-24243-1-git-send-email-rajeshwari.s@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOJMWRmVeSWpSXmKPExsVy+t9jQd3tDV/9DXb1CVo8XH+TxWLK4S8s Dkwed67tYQtgjOKySUnNySxLLdK3S+DKOPdxFWPBDYGKHW+OMjUwHuPtYuTgkBAwkZjbGNLF yAlkiklcuLeerYuRi0NIYDqjxOwVHYwQzkQmiYefj7KBVLEJGElsPTmNEcQWEZCQ+NV/FayI WWAWo8SiLY1gRcIClhLblj5gB7FZBFQlFt/4zgJi8wp4SGxsX88GsU5B4tjUr6wgNqeAp8TP /mdsIBcJAdVcXCwzgZF3ASPDKkbR1ILkguKk9FxDveLE3OLSvHS95PzcTYxg7z+T2sG4ssHi EKMAB6MSD29A1ld/IdbEsuLK3EOMEhzMSiK8vRlAId6UxMqq1KL8+KLSnNTiQ4zSHCxK4rzG 3kApgfTEktTs1NSC1CKYLBMHp1QD40Vzr91VuY8nS7PXXPE3ZeXkqN4edlCjy01l5TweSUuG 3XGf3pSfV1LQeGynNFW0wWO2fsUqtzNGkRVPBC1nxz0wlPmktTkq0lBB2Eg2+JvUOpf9n13C f81Uv8Al1LYi3r65YZKf2XNu2Z2zq5cdnbP/4dr8fsNLdwQqjbW+FKaKC6xaxbBDiaU4I9FQ i7moOBEACsAIbPoBAAA= X-TM-AS-MML: No X-Gm-Message-State: ALoCoQn5LOVL0B4vrOhdw7ulIE8QzKmf3mvzR4jFLhrTlHwMd4vBrvLwVjun75N4Z1uX6Ud8vOcR This enables I2C support on smdk5250. Pinmux setting moved to board file to avoid repeated setting of gpio lines. Signed-off-by: Alim Akhtar Signed-off-by: Doug Anderson Signed-off-by: Rajeshwari Shinde Acked-by: Simon Glass --- Changes in V2: - None Changes in V3: - None Changes in V4: - None Changes in V5: - Pinmux setting of gpio lines moved to board_early_init_f. board/samsung/smdk5250/smdk5250.c | 23 ++++++++++++++++++++++- include/configs/smdk5250.h | 9 +++++++++ 2 files changed, 31 insertions(+), 1 deletions(-) diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index b593325..fc08ddc 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -172,9 +172,30 @@ static int board_uart_init(void) return 0; } +static int board_i2c_init(void) +{ + int i, err; + + for (i = 0; i < CONFIG_MAX_I2C_NUM; i++) { + err = exynos_pinmux_config((PERIPH_ID_I2C0 + i), + PINMUX_FLAG_NONE); + if (err) { + debug("I2C%d not configured\n", (PERIPH_ID_I2C0 + i)); + return err; + } + } + return 0; +} + #ifdef CONFIG_BOARD_EARLY_INIT_F int board_early_init_f(void) { - return board_uart_init(); + int err; + err = board_uart_init(); + if (err) { + debug("UART init failed\n"); + return err; + } + return board_i2c_init(); } #endif diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h index 86dd905..c6df1cf 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -192,6 +192,15 @@ #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_LOAD_ADDR - 0x1000000) +/* I2C */ +#define CONFIG_HARD_I2C +#define CONFIG_CMD_I2C +#define CONFIG_SYS_I2C_SPEED 100000 /* 100 Kbps */ +#define CONFIG_DRIVER_S3C24X0_I2C +#define CONFIG_I2C_MULTI_BUS +#define CONFIG_MAX_I2C_NUM 8 +#define EXYNOS_I2C_SPACING 0x10000 + /* Ethernet Controllor Driver */ #ifdef CONFIG_CMD_NET #define CONFIG_SMC911X