From patchwork Fri Oct 29 20:58:49 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Sakoman X-Patchwork-Id: 71962 X-Patchwork-Delegate: s-paulraj@ti.com Return-Path: X-Original-To: wd@gemini.denx.de Delivered-To: wd@gemini.denx.de Received: from diddl.denx.de (diddl.denx.de [10.0.0.6]) by gemini.denx.de (Postfix) with ESMTP id 04FCD152451 for ; Fri, 29 Oct 2010 23:02:05 +0200 (CEST) Received: from diddl.denx.de (localhost.localdomain [127.0.0.1]) by diddl.denx.de (Postfix) with ESMTP id DA46B3364F87 for ; Fri, 29 Oct 2010 23:02:04 +0200 (CEST) Received: from pop.mnet-online.de by diddl.denx.de with POP3 (fetchmail-6.3.17) for (single-drop); Fri, 29 Oct 2010 23:02:04 +0200 (CEST) Received: from murder ([192.168.6.180]) by backend2 (Cyrus v2.2.12) with LMTPA; Fri, 29 Oct 2010 22:59:18 +0200 X-Sieve: CMU Sieve 2.2 Received: from mail.m-online.net (localhost [127.0.0.1]) by frontend3.mail.m-online.net (Cyrus v2.2.12) with LMTPA; Fri, 29 Oct 2010 22:59:18 +0200 Received: from scanner-4.m-online.net (scanner-4.mail.m-online.net [192.168.1.18]) by mail.m-online.net (Postfix) with ESMTP id 67E061C00100; Fri, 29 Oct 2010 22:59:18 +0200 (CEST) Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by mxin-3.m-online.net (Postfix) with ESMTP id 3203746C0CB; Fri, 29 Oct 2010 22:59:14 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 5167A2826A; Fri, 29 Oct 2010 22:59:12 +0200 (CEST) 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 Dzv3kz1faG91; Fri, 29 Oct 2010 22:59:12 +0200 (CEST) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id F04512826C; Fri, 29 Oct 2010 22:59:03 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 379D028249 for ; Fri, 29 Oct 2010 22:58:58 +0200 (CEST) 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 X9aKmkSbMaeS for ; Fri, 29 Oct 2010 22:58:56 +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 mail-ey0-f172.google.com (mail-ey0-f172.google.com [209.85.215.172]) by theia.denx.de (Postfix) with ESMTP id 08B5828126 for ; Fri, 29 Oct 2010 22:58:54 +0200 (CEST) Received: by eyd10 with SMTP id 10so2116104eyd.3 for ; Fri, 29 Oct 2010 13:58:54 -0700 (PDT) Received: by 10.213.33.139 with SMTP id h11mr1717260ebd.77.1288385934066; Fri, 29 Oct 2010 13:58:54 -0700 (PDT) Received: from [192.168.0.210] (static-74-41-60-154.dsl1.pco.ca.frontiernet.net [74.41.60.154]) by mx.google.com with ESMTPS id v51sm2047212eeh.16.2010.10.29.13.58.51 (version=SSLv3 cipher=RC4-MD5); Fri, 29 Oct 2010 13:58:53 -0700 (PDT) From: Steve Sakoman To: "u-boot@lists.denx.de" Date: Fri, 29 Oct 2010 13:58:49 -0700 Message-ID: <1288385929.2342.265.camel@quadra> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Subject: [U-Boot] [PATCH v2] ARMV7: OMAP3: Add expansion board detection for Beagle X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.9 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de X-Virus-Scanned: by amavisd-new at m-online.net Beagle expansion boards contain an i2c eeprom to identify themselves. This patch adds code to read and parse the eeprom contents. It prints the expansion board name and revision and modifies environment variables as appropriate. This patch is based on the Overo expansion board code. Signed-off-by: Koen Kooi Signed-off-by: Steve Sakoman Tested-by: Stefano Babic --- Change for v2: Add GPIO 162 pinmux for TCT Trainer board diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c index c5d6679..d9b6f01 100644 --- a/board/ti/beagle/beagle.c +++ b/board/ti/beagle/beagle.c @@ -39,6 +39,27 @@ #include #include "beagle.h" +#define TWL4030_I2C_BUS 0 +#define EXPANSION_EEPROM_I2C_BUS 1 +#define EXPANSION_EEPROM_I2C_ADDRESS 0x50 + +#define TINCANTOOLS_ZIPPY 0x01000100 +#define TINCANTOOLS_ZIPPY2 0x02000100 +#define TINCANTOOLS_TRAINER 0x04000100 +#define TINCANTOOLS_SHOWDOG 0x03000100 +#define KBADC_BEAGLEFPGA 0x01000600 + +#define BEAGLE_NO_EEPROM 0xffffffff + +static struct { + unsigned int device_vendor; + unsigned char revision; + unsigned char content; + char fab_revision[8]; + char env_var[16]; + char env_setting[64]; +} expansion_config; + /* * Routine: board_init * Description: Early hardware init. @@ -95,6 +116,31 @@ int get_board_revision(void) } /* + * Routine: get_expansion_id + * Description: This function checks for expansion board by checking I2C + * bus 1 for the availability of an AT24C01B serial EEPROM. + * returns the device_vendor field from the EEPROM + */ +unsigned int get_expansion_id(void) +{ + i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); + + /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */ + if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { + i2c_set_bus_num(TWL4030_I2C_BUS); + return BEAGLE_NO_EEPROM; + } + + /* read configuration data */ + i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, + sizeof(expansion_config)); + + i2c_set_bus_num(TWL4030_I2C_BUS); + + return expansion_config.device_vendor; +} + +/* * Routine: misc_init_r * Description: Configure board specific parts */ @@ -141,6 +187,55 @@ int misc_init_r(void) printf("Beagle unknown 0x%02x\n", get_board_revision()); } + switch (get_expansion_id()) { + case TINCANTOOLS_ZIPPY: + printf("Recognized Tincantools Zippy board (rev %d %s)\n", + expansion_config.revision, + expansion_config.fab_revision); + MUX_TINCANTOOLS_ZIPPY(); + setenv("buddy", "zippy"); + break; + case TINCANTOOLS_ZIPPY2: + printf("Recognized Tincantools Zippy2 board (rev %d %s)\n", + expansion_config.revision, + expansion_config.fab_revision); + MUX_TINCANTOOLS_ZIPPY(); + setenv("buddy", "zippy2"); + break; + case TINCANTOOLS_TRAINER: + printf("Recognized Tincantools Trainer board (rev %d %s)\n", + expansion_config.revision, + expansion_config.fab_revision); + MUX_TINCANTOOLS_ZIPPY(); + MUX_TINCANTOOLS_TRAINER(); + setenv("buddy", "trainer"); + break; + case TINCANTOOLS_SHOWDOG: + printf("Recognized Tincantools Showdow board (rev %d %s)\n", + expansion_config.revision, + expansion_config.fab_revision); + /* Place holder for DSS2 definition for showdog lcd */ + setenv("defaultdisplay", "showdoglcd"); + setenv("buddy", "showdog"); + break; + case KBADC_BEAGLEFPGA: + printf("Recognized KBADC Beagle FPGA board\n"); + MUX_KBADC_BEAGLEFPGA(); + setenv("buddy", "beaglefpga"); + break; + case BEAGLE_NO_EEPROM: + printf("No EEPROM on expansion board\n"); + setenv("buddy", "none"); + break; + default: + printf("Unrecognized expansion board: %x\n", + expansion_config.device_vendor); + setenv("buddy", "unknown"); + } + + if (expansion_config.content == 1) + setenv(expansion_config.env_var, expansion_config.env_setting); + twl4030_power_init(); twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); diff --git a/board/ti/beagle/beagle.h b/board/ti/beagle/beagle.h index ec0da6d..b22b653 100644 --- a/board/ti/beagle/beagle.h +++ b/board/ti/beagle/beagle.h @@ -259,8 +259,8 @@ const omap3_sysinfo sysinfo = { MUX_VAL(CP(HSUSB0_DATA7), (IEN | PTD | DIS | M0)) /*HSUSB0_DATA7*/\ MUX_VAL(CP(I2C1_SCL), (IEN | PTU | EN | M0)) /*I2C1_SCL*/\ MUX_VAL(CP(I2C1_SDA), (IEN | PTU | EN | M0)) /*I2C1_SDA*/\ - MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M4)) /*GPIO_168*/\ - MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M4)) /*GPIO_183*/\ + MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0)) /*I2C2_SCL*/\ + MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0)) /*I2C2_SDA*/\ MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0)) /*I2C3_SCL*/\ MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0)) /*I2C3_SDA*/\ MUX_VAL(CP(I2C4_SCL), (IEN | PTU | EN | M0)) /*I2C4_SCL*/\ @@ -415,4 +415,46 @@ const omap3_sysinfo sysinfo = { MUX_VAL(CP(SYS_BOOT5), (IDIS | PTD | DIS | M3)) /*DSS_DATA22*/\ MUX_VAL(CP(SYS_BOOT6), (IDIS | PTD | DIS | M3)) /*DSS_DATA23*/ +#define MUX_TINCANTOOLS_ZIPPY() \ + MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M0)) /*MMC2_CLK*/\ + MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M0)) /*MMC2_CMD*/\ + MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M0)) /*MMC2_DAT0*/\ + MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M0)) /*MMC2_DAT1*/\ + MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M0)) /*MMC2_DAT2*/\ + MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M0)) /*MMC2_DAT3*/\ + MUX_VAL(CP(MMC2_DAT4), (IEN | PTU | EN | M1)) /*MMC2_DIR_DAT0*/\ + MUX_VAL(CP(MMC2_DAT5), (IEN | PTU | EN | M1)) /*MMC2_DIR_DAT1*/\ + MUX_VAL(CP(MMC2_DAT6), (IEN | PTU | EN | M1)) /*MMC2_DIR_CMD*/\ + MUX_VAL(CP(MMC2_DAT7), (IEN | PTU | EN | M1)) /*MMC2_CLKIN*/\ + MUX_VAL(CP(MCBSP1_CLKR), (IEN | PTU | EN | M1)) /*MCSPI4_CLK*/\ + MUX_VAL(CP(MCBSP1_FSR), (IEN | PTU | EN | M4)) /*GPIO_157*/\ + MUX_VAL(CP(MCBSP1_DX), (IEN | PTD | EN | M1)) /*MCSPI4_SIMO*/\ + MUX_VAL(CP(MCBSP1_DR), (IEN | PTD | DIS | M1)) /*MCSPI4_SOMI*/\ + MUX_VAL(CP(MCBSP1_FSX), (IEN | PTD | EN | M1)) /*MCSPI4_CS0*/\ + MUX_VAL(CP(MCBSP1_CLKX), (IEN | PTD | DIS | M4)) /*GPIO_162*/\ + MUX_VAL(CP(MCBSP3_DX), (IEN | PTD | DIS | M4)) /*GPIO_140*/\ + MUX_VAL(CP(MCBSP3_DR), (IEN | PTD | DIS | M4)) /*GPIO_142*/\ + MUX_VAL(CP(MCBSP3_CLKX), (IEN | PTD | DIS | M4)) /*GPIO_141*/ + +#define MUX_TINCANTOOLS_TRAINER() \ + MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M4)) /*GPIO_130*/\ + MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M4)) /*GPIO_131*/\ + MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M4)) /*GPIO_132*/\ + MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M4)) /*GPIO_133*/\ + MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M4)) /*GPIO_134*/\ + MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M4)) /*GPIO_135*/\ + MUX_VAL(CP(MMC2_DAT4), (IEN | PTU | EN | M4)) /*GPIO_136*/\ + MUX_VAL(CP(MMC2_DAT5), (IEN | PTU | EN | M4)) /*GPIO_137*/\ + MUX_VAL(CP(MMC2_DAT6), (IEN | PTU | EN | M4)) /*GPIO_138*/\ + MUX_VAL(CP(MMC2_DAT7), (IEN | PTU | EN | M4)) /*GPIO_139*/\ + MUX_VAL(CP(MCBSP3_DX), (IEN | PTU | EN | M4)) /*GPIO_140*/\ + MUX_VAL(CP(MCBSP3_CLKX), (IEN | PTU | EN | M4)) /*GPIO_141*/\ + MUX_VAL(CP(MCBSP1_CLKX), (IEN | PTU | EN | M4)) /*GPIO_162*/ + +#define MUX_KBADC_BEAGLEFPGA() \ + MUX_VAL(CP(MCBSP1_CLKR), (IEN | PTU | DIS | M1)) /*MCSPI4_CLK*/\ + MUX_VAL(CP(MCBSP1_DX), (IDIS | PTU | DIS | M1)) /*MCSPI4_SIMO*/\ + MUX_VAL(CP(MCBSP1_DR), (IEN | PTU | EN | M1)) /*MCSPI4_SOMI*/\ + MUX_VAL(CP(MCBSP1_FSX), (IDIS | PTU | DIS | M1)) /*MCSPI4_CS0*/ + #endif diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h index 1c9a007..e7d5bd0 100644 --- a/include/configs/omap3_beagle.h +++ b/include/configs/omap3_beagle.h @@ -152,6 +152,7 @@ #define CONFIG_SYS_I2C_SLAVE 1 #define CONFIG_SYS_I2C_BUS 0 #define CONFIG_SYS_I2C_BUS_SELECT 1 +#define CONFIG_I2C_MULTI_BUS 1 #define CONFIG_DRIVER_OMAP34XX_I2C 1 /*