From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Sun, 05 Sep 2021 15:53:32 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1mMsaS-0007GE-JB for lore@lore.pengutronix.de; Sun, 05 Sep 2021 15:53:32 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mMsaR-0002R9-JY for lore@pengutronix.de; Sun, 05 Sep 2021 15:53:32 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rMJ5XSGgMhzfpbAqQMozHe2DqdpR4E9R0jHz5gRqS2o=; b=yVpR07zq8u1a9Z 9RJDJfY250N7/EdoihXYkIxhAde/9sqHphvFKOUeaPL/YBc2Nsx1Rx5lBPwYpqVuxo7jEioNw68In 5L1EO5ZP+kzv2OUOfOGpc7lDNO6yE7gbwxD/OH8Rn0cgT2j5NHjBgwEwiS0G35BZ2PWCufLrPr2cg CUHKuVxhGe734/nOUdioi2m6dHQmY1MTa0O5x1IFHAHIDMQIR6NrcFvAnAVTHI4kvDkDkozr/5gb0 ObcMZHahsI6jO4VVIXAESuv0Nl8/RIyJEHooYehXc9QFLlwF/ZSnJR/Qhvj46d9FJi9hP2jg7OH3U 3eted7OQ5/JU98q/a+BQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mMsYm-00Fqc3-8L; Sun, 05 Sep 2021 13:51:48 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mMsYY-00FqWl-OS for barebox@lists.infradead.org; Sun, 05 Sep 2021 13:51:37 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mMsYU-000248-Qc for barebox@lists.infradead.org; Sun, 05 Sep 2021 15:51:30 +0200 Received: from afa by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1mMsYU-00026S-7Z for barebox@lists.infradead.org; Sun, 05 Sep 2021 15:51:30 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Date: Sun, 5 Sep 2021 15:51:16 +0200 Message-Id: <20210905135122.7038-4-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210905135122.7038-1-a.fatoum@pengutronix.de> References: <20210905135122.7038-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210905_065134_885699_2AC51B72 X-CRM114-Status: GOOD ( 11.51 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::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.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 3/9] ARM: i.MX8MN: adapt early clock support X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) PBL runs fine when doing the same early clock setup as for the i.MX8MM: i2c communication works, copying to DRAM works, but boot hangs in barebox proper. Vendor patches for U-Boot configure SYS_PLL3 as 600MHz for i.MX8MP and i.MX8MN. barebox i.MX8MP port evidently can do without, but for i.MX8MN, reducing PLL frequency to 600MHz was required to boot. Signed-off-by: Ahmad Fatoum --- arch/arm/mach-imx/imx8m.c | 16 +++++++++++++--- arch/arm/mach-imx/include/mach/imx8m-ccm-regs.h | 1 + 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-imx/imx8m.c b/arch/arm/mach-imx/imx8m.c index ac48e7aa0ab1..6b7cdac54145 100644 --- a/arch/arm/mach-imx/imx8m.c +++ b/arch/arm/mach-imx/imx8m.c @@ -181,7 +181,7 @@ int imx8mq_init(void) #define IMX8MM_CCM_ANALOG_SYS_PLL2_GEN_CTRL 0x104 #define IMX8MM_CCM_ANALOG_SYS_PLL3_GEN_CTRL 0x114 -void imx8mm_early_clock_init(void) +static void __imx8mm_early_clock_init(unsigned long pll3_freq) /* and later */ { void __iomem *ana = IOMEM(MX8M_ANATOP_BASE_ADDR); void __iomem *ccm = IOMEM(MX8M_CCM_BASE_ADDR); @@ -224,9 +224,9 @@ void imx8mm_early_clock_init(void) IMX8M_CCM_TARGET_ROOTn_MUX(3)); imx8m_ccgr_clock_enable(IMX8M_CCM_CCGR_GIC); - /* Configure SYS_PLL3 to 750MHz */ + /* Configure SYS_PLL3 */ clk_pll1416x_early_set_rate(ana + IMX8MM_CCM_ANALOG_SYS_PLL3_GEN_CTRL, - 750000000UL, 25000000UL); + pll3_freq, 25000000UL); clrsetbits_le32(ccm + IMX8M_CCM_TARGET_ROOTn(IMX8M_ARM_A53_CLK_ROOT), IMX8M_CCM_TARGET_ROOTn_MUX(7), @@ -249,6 +249,16 @@ void imx8mm_early_clock_init(void) FIELD_PREP(CCM_TARGET_ROOT0_DIV, 0)); } +void imx8mm_early_clock_init(void) +{ + __imx8mm_early_clock_init(750000000UL); +} + +void imx8mn_early_clock_init(void) +{ + __imx8mm_early_clock_init(600000000UL); +} + #define KEEP_ALIVE 0x18 #define VER_L 0x1c #define VER_H 0x20 diff --git a/arch/arm/mach-imx/include/mach/imx8m-ccm-regs.h b/arch/arm/mach-imx/include/mach/imx8m-ccm-regs.h index 743ed6cda0d2..985391f31ac1 100644 --- a/arch/arm/mach-imx/include/mach/imx8m-ccm-regs.h +++ b/arch/arm/mach-imx/include/mach/imx8m-ccm-regs.h @@ -50,6 +50,7 @@ void imx8m_early_setup_uart_clock(void); void imx8mm_early_clock_init(void); +void imx8mn_early_clock_init(void); void imx8m_clock_set_target_val(int clock_id, u32 val); void imx8m_ccgr_clock_enable(int index); void imx8m_ccgr_clock_disable(int index); -- 2.30.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox