From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 13 Mar 2026 15:28:24 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w13V2-000EgN-0D for lore@lore.pengutronix.de; Fri, 13 Mar 2026 15:28:24 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1w13V0-0004ly-NJ for lore@pengutronix.de; Fri, 13 Mar 2026 15:28:24 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZAkI9L52gNQ0Q9QT3Me6OnfRSVRfxiZOkUyYHiXYfhw=; b=g8VX8qrawlAyMpTHXunPVjW7qf S4xTwUSs0wsHVIxOMNH18Mx9/vBORsXs6hVvx9bflznqpJj29bahWMwDGqJ6l6tFxlKQe6t5wm4n0 SdNl7xMcNBKt754pBPiu0pmHL0AlYj8WNkMAna5NCr+fwUpHRnJ89BP0xB6Ht2P7L157d9HDgweV9 IXWPvYYOdOorMrosa9sRmmZDHvg1XLYvoXCZN2UQZIMBbkxFaQyyk+BC6wR/FiJD3tLGjr2EhryGV xGICZXkogHpPpBcKcdcDgGhGBUoynkhiU9NYT7DPBK4N+quETR+BEQpl1h1Sb2JgXGz2o1jk//CqM qlEaALqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w13UY-00000000O6y-3Zh4; Fri, 13 Mar 2026 14:27:54 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w13UV-00000000O6S-1JYX for barebox@lists.infradead.org; Fri, 13 Mar 2026 14:27:53 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1w13UT-0004e5-Sd; Fri, 13 Mar 2026 15:27:49 +0100 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w13UT-0005vq-2E; Fri, 13 Mar 2026 15:27:49 +0100 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.98.2) (envelope-from ) id 1w13UT-0000000HFPD-2V2l; Fri, 13 Mar 2026 15:27:49 +0100 Date: Fri, 13 Mar 2026 15:27:49 +0100 From: Sascha Hauer To: Fabian Pflug Cc: BAREBOX , Marco Felsch Message-ID: References: <20260312-v2026-01-0-topic-tqma8mpxs-v4-0-88472a13347d@pengutronix.de> <20260312-v2026-01-0-topic-tqma8mpxs-v4-2-88472a13347d@pengutronix.de> <2d81955609d42ee98e53e1510d4267634df68bff.camel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <2d81955609d42ee98e53e1510d4267634df68bff.camel@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260313_072752_289089_0D5A6867 X-CRM114-Status: GOOD ( 28.66 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH v4 2/3] ARM: boards: tqma8mpxl: extend with support for xs X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Fri, Mar 13, 2026 at 03:19:52PM +0100, Fabian Pflug wrote: > Hi, > > On Fri, 2026-03-13 at 14:20 +0100, Sascha Hauer wrote: > > On Thu, Mar 12, 2026 at 12:34:32PM +0100, Fabian Pflug wrote: > > > The TQMA8MPxS is another board from TQ with the same processor, but a > > > different formfactor. Nevertheless they share a lot of code and can be > > > used from the same barebox resulting in the rename of tqma8mpxl to > > > tqma8mpxx. > > > > > > Signed-off-by: Fabian Pflug > > > --- > > >  arch/arm/boards/tqma8mpxx/board.c                  |    1 + > > >  arch/arm/boards/tqma8mpxx/lowlevel.c               |   97 +- > > >  arch/arm/dts/Makefile                              |    2 +- > > >  .../dts/imx8mp-tqma8mpqs-mb-smarc-2-upstream.dts   |  402 ++++++++ > > >  arch/arm/dts/imx8mp-tqma8mpqs-mba8mpxs.dts         |   15 + > > >  arch/arm/dts/imx8mp-tqma8mpqs-upstream.dtsi        | 1075 ++++++++++++++++++++ > > >  arch/arm/mach-imx/Kconfig                          |    3 +- > > >  7 files changed, 1574 insertions(+), 21 deletions(-) > > > > > > -static void power_init_board(void) > > > +static bool tqma_is_eeprom_valid(struct tq_eeprom *eeprom) > > >  { > > > - struct pbl_i2c *i2c; > > > + int ramsize; > > >   > > > - imx8mp_setup_pad(MX8MP_PAD_I2C1_SCL__I2C1_SCL | I2C_PAD_CTRL); > > > - imx8mp_setup_pad(MX8MP_PAD_I2C1_SDA__I2C1_SDA | I2C_PAD_CTRL); > > > - > > > - imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_I2C1); > > > - > > > - i2c = imx8m_i2c_early_init(IOMEM(MX8MP_I2C1_BASE_ADDR)); > > > - > > > - pmic_configure(i2c, 0x25, pca9450_cfg, ARRAY_SIZE(pca9450_cfg)); > > > + if (!*eeprom->serial || !*eeprom->id) > > > + return false; > > > + ramsize = tq_vard_ramsize(&eeprom->vard) / (SZ_1G); > > > + if (ramsize != 1 && ramsize != 2 && ramsize != 4 && ramsize != 8) > > > + return false; > > > + return true; > > >  } > > >   > > > -static __noreturn noinline void tqma8mpxx_start(void) > > > +static noinline void tqma8mpxx_start(void) > > >  { > > >   extern char __dtb_z_imx8mp_tqma8mpql_mba8mpxl_start[]; > > > + extern char __dtb_z_imx8mp_tqma8mpqs_mba8mpxs_start[]; > > >   > > > - setup_uart(); > > > + struct tq_eeprom *eeprom; > > > + struct pbl_i2c *i2c; > > > + void *boarddata; > > > + > > > + i2c = tqma_i2c1_init(); > > > + > > > + /** > > > + * The difference for the lowlevel code between xS and xL is: > > > + * PMIC: xS on i2c2, xL on i2C1 > > > + * VARD: address 0x50 on xS, address 0x53 on xL. > > > + *       offset 0x1000 on xS, offset 0x0 on xL > > > + */ > > > + > > > + eeprom = pbl_tq_read_eeprom(i2c, 0x50, 0x1000 | I2C_ADDR_16_BIT); > > > + if (tqma_is_eeprom_valid(eeprom)) { > > > + /* found xS board */ > > > + i2c = tqma_i2c2_init(); > > > > Something is mixed up here. You come here when you find a valid EEPROM > > on I2C1 which according to the comment indicates you're on a xL board. > > Also i2c is set here but unused for the rest of this function. > > No, the i2c is used later to setup the pmic in line 171. > The xS has the pmic on i2c2, wheras the xL has the PMIc on i2c1. Ah, now I get it. I was fooled by PMIC vs EEPROM and didn't really get there are two I2C devices. Nevermind, fine the way it is. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |