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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 30/42] ARM: i.MX7: Add and use function for early UART clock setup
Date: Mon, 17 Feb 2020 13:46:11 +0100	[thread overview]
Message-ID: <20200217124623.14520-31-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20200217124623.14520-1-s.hauer@pengutronix.de>

The i.MX7 boards have the same code for setting up the UART clock. Add a
common helper function for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/boards/freescale-mx7-sabresd/lowlevel.c |  9 +--------
 arch/arm/boards/zii-imx7d-dev/lowlevel.c         |  9 +--------
 arch/arm/mach-imx/include/mach/imx7-ccm-regs.h   | 12 ++++++++++++
 3 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/arch/arm/boards/freescale-mx7-sabresd/lowlevel.c b/arch/arm/boards/freescale-mx7-sabresd/lowlevel.c
index 995bf6cca9..8db46ca696 100644
--- a/arch/arm/boards/freescale-mx7-sabresd/lowlevel.c
+++ b/arch/arm/boards/freescale-mx7-sabresd/lowlevel.c
@@ -15,14 +15,7 @@ extern char __dtb_imx7d_sdb_start[];
 
 static inline void setup_uart(void)
 {
-	void __iomem *ccm   = IOMEM(MX7_CCM_BASE_ADDR);
-
-	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
-	       ccm + IMX7_CCM_CCGRn_CLR(IMX7_CCM_CCGR_UART1));
-	writel(IMX7_CCM_TARGET_ROOTn_ENABLE | IMX7_UART1_CLK_ROOT__OSC_24M,
-	       ccm + IMX7_CCM_TARGET_ROOTn(IMX7_UART1_CLK_ROOT));
-	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
-	       ccm + IMX7_CCM_CCGRn_SET(IMX7_CCM_CCGR_UART1));
+	imx7_early_setup_uart_clock();
 
 	imx7_setup_pad(MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX);
 
diff --git a/arch/arm/boards/zii-imx7d-dev/lowlevel.c b/arch/arm/boards/zii-imx7d-dev/lowlevel.c
index 83fb646fd6..7579a2a8a0 100644
--- a/arch/arm/boards/zii-imx7d-dev/lowlevel.c
+++ b/arch/arm/boards/zii-imx7d-dev/lowlevel.c
@@ -23,14 +23,7 @@ extern char __dtb_z_imx7d_zii_rmu2_start[];
 
 static inline void setup_uart(void)
 {
-	void __iomem *ccm   = IOMEM(MX7_CCM_BASE_ADDR);
-
-	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
-	       ccm + IMX7_CCM_CCGRn_CLR(IMX7_CCM_CCGR_UART2));
-	writel(IMX7_CCM_TARGET_ROOTn_ENABLE | IMX7_UART2_CLK_ROOT__OSC_24M,
-	       ccm + IMX7_CCM_TARGET_ROOTn(IMX7_UART2_CLK_ROOT));
-	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
-	       ccm + IMX7_CCM_CCGRn_SET(IMX7_CCM_CCGR_UART2));
+	imx7_early_setup_uart_clock();
 
 	imx7_setup_pad(MX7D_PAD_UART2_TX_DATA__UART2_DCE_TX);
 
diff --git a/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h b/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h
index b78adf9f1c..de6eb1bbd1 100644
--- a/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h
+++ b/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h
@@ -33,4 +33,16 @@
 #define IMX7_CCM_CCGR_SETTINGn_NEEDED_RUN_WAIT(n)	IMX7_CCM_CCGR_SETTINGn(n, 0b10)
 #define IMX7_CCM_CCGR_SETTINGn_NEEDED(n)		IMX7_CCM_CCGR_SETTINGn(n, 0b11)
 
+static inline void imx7_early_setup_uart_clock(void)
+{
+	void __iomem *ccm   = IOMEM(MX7_CCM_BASE_ADDR);
+
+	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
+	       ccm + IMX7_CCM_CCGRn_CLR(IMX7_CCM_CCGR_UART1));
+	writel(IMX7_CCM_TARGET_ROOTn_ENABLE | IMX7_UART1_CLK_ROOT__OSC_24M,
+	       ccm + IMX7_CCM_TARGET_ROOTn(IMX7_UART1_CLK_ROOT));
+	writel(IMX7_CCM_CCGR_SETTINGn_NEEDED(0),
+	       ccm + IMX7_CCM_CCGRn_SET(IMX7_CCM_CCGR_UART1));
+}
+
 #endif
-- 
2.25.0


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  parent reply	other threads:[~2020-02-17 12:47 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-17 12:45 [PATCH 00/42] Add i.MX8M support Sascha Hauer
2020-02-17 12:45 ` [PATCH 01/42] ARM: i.MX8: Move iomux header to make space for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 02/42] ARM: i.MX8M: Add base addresses common to i.MX8M Sascha Hauer
2020-02-17 12:45 ` [PATCH 03/42] ARM: i.MX8M: add and use imx8mq_setup_pad() Sascha Hauer
2020-02-17 12:45 ` [PATCH 04/42] ARM: i.MX: Drop iomux argument from mx7_setup_pad() Sascha Hauer
2020-02-17 12:45 ` [PATCH 05/42] ARM: i.MX8M: Add iomux header for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 06/42] ARM: i.MX8M: Add imx8mm-regs.h Sascha Hauer
2020-02-17 12:45 ` [PATCH 07/42] ARM: i.MX8M: Add ARCH_IMX8M symbol Sascha Hauer
2020-02-17 12:45 ` [PATCH 08/42] ARM: i.MX: esdctl: rename functions to imx8m_* Sascha Hauer
2020-02-17 12:45 ` [PATCH 09/42] ARM: i.MX8M: Use imx8mq.c for other i.MX8M as well Sascha Hauer
2020-02-17 12:45 ` [PATCH 10/42] ARM: i.MX8M: rename imx8_* bootsource functions to imx8mq_* Sascha Hauer
2020-02-17 12:45 ` [PATCH 11/42] ARM: i.MX8M: Detect serial downloader mode correctly Sascha Hauer
2020-02-17 12:45 ` [PATCH 12/42] HAB: i.MX8M: rename imx8_* functions to imx8m_* Sascha Hauer
2020-02-17 12:45 ` [PATCH 13/42] ARM: i.MX8M: rename i.MX8M specific function Sascha Hauer
2020-02-17 12:45 ` [PATCH 14/42] ARM: i.MX8M: rename functions to be i.MX8M specific Sascha Hauer
2020-02-17 12:45 ` [PATCH 15/42] mci: imx-esdhc-pbl: Add instance 2 for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 16/42] USB: gadget: fsl_udc: move register definitions to header file Sascha Hauer
2020-02-17 12:45 ` [PATCH 17/42] usb: gadget: fsl_udc: Add PBL image loading support Sascha Hauer
2020-02-17 12:45 ` [PATCH 18/42] usb: gadget: fsl_udc: Fix warnings on 64bit compilation Sascha Hauer
2020-02-17 12:46 ` [PATCH 19/42] usb: imx: Add i.MX8mm support Sascha Hauer
2020-02-17 12:46 ` [PATCH 20/42] serial: imx: Add imx8mm compatible Sascha Hauer
2020-02-17 12:46 ` [PATCH 21/42] mci: imx-esdhc: Add i.MX8mm support Sascha Hauer
2020-02-17 12:46 ` [PATCH 22/42] I2C: i.MX: Add early i2c support for i.MX8M Sascha Hauer
2020-02-17 12:46 ` [PATCH 23/42] clk: imx: Add pll14xx support Sascha Hauer
2020-02-17 12:46 ` [PATCH 24/42] clk: imx: Add imx8m_clk_composite_critical Sascha Hauer
2020-02-17 12:46 ` [PATCH 25/42] clk: imx: Add imx8mm clk driver Sascha Hauer
2020-02-17 12:46 ` [PATCH 26/42] ARM: i.MX: Add SoC namespace to imx7/8m CCM defines Sascha Hauer
2020-02-17 12:46 ` [PATCH 27/42] Add some CCM defines for i.MX8M Sascha Hauer
2020-02-17 12:46 ` [PATCH 28/42] ARM: i.MX8M: rename imx8-ccm-regs.h to imx8m-ccm-regs.h Sascha Hauer
2020-02-17 12:46 ` [PATCH 29/42] ARM: i.MX8M: Add some lowlevel clock functions Sascha Hauer
2020-02-17 12:46 ` Sascha Hauer [this message]
2020-02-17 12:46 ` [PATCH 31/42] ARM: i.MX8M: Add and use function for early UART clock setup Sascha Hauer
2020-02-17 12:46 ` [PATCH 32/42] iomux: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 33/42] mfd: Add Rohm bd71837 header file Sascha Hauer
2020-02-17 12:46 ` [PATCH 34/42] scripts: imx-usb-loader: Add 2nd stage loading support Sascha Hauer
2020-02-17 12:46 ` [PATCH 35/42] scripts: imx-usb-loader: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 36/42] ARM: i.MX8MQ boards: Add missing includes Sascha Hauer
2020-02-17 12:46 ` [PATCH 37/42] ARM: i.MX8M: Add DDR controller support Sascha Hauer
2020-02-17 12:46 ` [PATCH 38/42] ARM: i.MX8M: Add TF-A loading support for i.MX8MM Sascha Hauer
2020-02-17 12:46 ` [PATCH 39/42] ARM: i.MX8M: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 40/42] scripts: imx-image: " Sascha Hauer
2020-02-17 12:46 ` [PATCH 41/42] ARM: i.MX: Add i.MX8MM EVK board support Sascha Hauer
2020-02-17 12:46 ` [PATCH 42/42] ARM: i.MX: update imx_v8_defconfig for i.MX8MM Sascha Hauer

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