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From: Vikas Manocha <vikas.manocha@st.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 06/18] stm32f7: use clock driver to enable sdram controller clock
Date: Tue, 4 Apr 2017 14:45:08 -0700	[thread overview]
Message-ID: <1491342324-5820-7-git-send-email-vikas.manocha@st.com> (raw)
In-Reply-To: <1491342324-5820-1-git-send-email-vikas.manocha@st.com>

This patch also removes the sdram/fmc clock enable from board specific
code.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
---
Changed in v2: None

 arch/arm/dts/stm32f746.dtsi                |  1 +
 board/st/stm32f746-disco/stm32f746-disco.c |  2 --
 drivers/ram/stm32_sdram.c                  | 15 +++++++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi
index 3707550..e9fd6f4 100644
--- a/arch/arm/dts/stm32f746.dtsi
+++ b/arch/arm/dts/stm32f746.dtsi
@@ -74,6 +74,7 @@
 		fmc: fmc at A0000000 {
 			compatible = "st,stm32-fmc";
 			reg = <0xA0000000 0x1000>;
+			clocks = <&rcc 0 64>;
 			u-boot,dm-pre-reloc;
 		};
 
diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c
index e1113a6..370db15 100644
--- a/board/st/stm32f746-disco/stm32f746-disco.c
+++ b/board/st/stm32f746-disco/stm32f746-disco.c
@@ -51,8 +51,6 @@ int dram_init(void)
 	if (rv)
 		return rv;
 
-	clock_setup(FMC_CLOCK_CFG);
-
 	rv = uclass_get_device(UCLASS_RAM, 0, &dev);
 	if (rv) {
 		debug("DRAM init failed: %d\n", rv);
diff --git a/drivers/ram/stm32_sdram.c b/drivers/ram/stm32_sdram.c
index 67be61f..67d8855 100644
--- a/drivers/ram/stm32_sdram.c
+++ b/drivers/ram/stm32_sdram.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <clk.h>
 #include <dm.h>
 #include <ram.h>
 #include <asm/io.h>
@@ -122,6 +123,20 @@ int stm32_sdram_init(void)
 
 static int stm32_fmc_probe(struct udevice *dev)
 {
+#ifdef CONFIG_CLK
+	int ret;
+	struct clk clk;
+	ret = clk_get_by_index(dev, 0, &clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_enable(&clk);
+
+	if (ret) {
+		dev_err(dev, "failed to enable clock\n");
+		return ret;
+	}
+#endif
 	stm32_sdram_init();
 	return 0;
 }
-- 
1.9.1

  parent reply	other threads:[~2017-04-04 21:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-04 21:45 [U-Boot] [PATCH v2 00/18] stm32f7: add sdram & gpio drivers Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 01/18] stm32f7: use clock driver to enable qspi controller clock Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 02/18] stm32f7: sdram: move sdram driver code to ram drivers area Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 03/18] stm32f7: dm: add driver model support for sdram Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 04/18] ARM: DT: stm32f7: add sdram pin contol node Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 05/18] stm32f7: use driver model for sdram initialization Vikas Manocha
2017-04-04 21:45 ` Vikas Manocha [this message]
2017-04-04 21:45 ` [U-Boot] [PATCH v2 07/18] stm32f7: sdram: use sdram device tree node to configure sdram controller Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 08/18] dm: gpio: Add driver for stm32f7 gpio controller Vikas Manocha
2017-04-09 19:27   ` Simon Glass
2017-04-10 16:25     ` Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 09/18] ARM: DT: stm32f7: add gpio device tree nodes Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 10/18] stm32f7: use stm32f7 gpio driver supporting driver model Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 11/18] stm32f746: to switch on user LED1 & read user button Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 12/18] stm32f7: stm32f746-disco: read memory info from device tree Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 13/18] stm32f7: enable board info read " Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 14/18] stm32f7: sdram: correct sdram configuration as per micron sdram Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 15/18] stm32f7: increase the max no of pin configuration to 70 Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 16/18] stm32f7: move board specific pin muxing to dts Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 17/18] stm32f7: add support for stm32f769 disco board Vikas Manocha
2017-04-04 21:45 ` [U-Boot] [PATCH v2 18/18] stm32f7: remove not needed configuration from board config Vikas Manocha

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