board: ti: am57xx-idk: Configure the CDCE913 clock synthesizer
AM57xx-IDK boards contain the CDCE913 clock synthesizer, and their
reset crystal capacitance load value of 10pF is wrong leading into
lost packets in certain networking tests. Add DT data for this
device, and probe it from the board file to program the crystal
capacitance load value to 0pF to avoid any problems.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
diff --git a/arch/arm/dts/am571x-idk-u-boot.dtsi b/arch/arm/dts/am571x-idk-u-boot.dtsi
new file mode 100644
index 0000000..6519920
--- /dev/null
+++ b/arch/arm/dts/am571x-idk-u-boot.dtsi
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#include "am57xx-idk-common-u-boot.dtsi"
diff --git a/arch/arm/dts/am572x-idk-u-boot.dtsi b/arch/arm/dts/am572x-idk-u-boot.dtsi
new file mode 100644
index 0000000..6519920
--- /dev/null
+++ b/arch/arm/dts/am572x-idk-u-boot.dtsi
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#include "am57xx-idk-common-u-boot.dtsi"
diff --git a/arch/arm/dts/am574x-idk-u-boot.dtsi b/arch/arm/dts/am574x-idk-u-boot.dtsi
new file mode 100644
index 0000000..6519920
--- /dev/null
+++ b/arch/arm/dts/am574x-idk-u-boot.dtsi
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#include "am57xx-idk-common-u-boot.dtsi"
diff --git a/arch/arm/dts/am57xx-idk-common-u-boot.dtsi b/arch/arm/dts/am57xx-idk-common-u-boot.dtsi
new file mode 100644
index 0000000..b07aea0
--- /dev/null
+++ b/arch/arm/dts/am57xx-idk-common-u-boot.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#include "omap5-u-boot.dtsi"
+
+/ {
+ xtal25mhz: xtal25mhz {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+};
+
+&i2c1 {
+ cdce913: cdce913@65 {
+ compatible = "ti,cdce913";
+ reg = <0x65>;
+ clocks = <&xtal25mhz>;
+ #clock-cells = <1>;
+ xtal-load-pf = <0>;
+ };
+};
diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c
index f78e6c2..237a834 100644
--- a/board/ti/am57xx/board.c
+++ b/board/ti/am57xx/board.c
@@ -30,6 +30,7 @@
#include <dwc3-omap-uboot.h>
#include <ti-usb-phy-uboot.h>
#include <mmc.h>
+#include <dm/uclass.h>
#include "../common/board_detect.h"
#include "mux_data.h"
@@ -689,6 +690,7 @@
{
setup_board_eeprom_env();
u8 val;
+ struct udevice *dev;
/*
* DEV_CTRL.DEV_ON = 1 please - else palmas switches off in 8 seconds
@@ -720,6 +722,9 @@
am57x_idk_lcd_detect();
+ /* Just probe the potentially supported cdce913 device */
+ uclass_get_device(UCLASS_CLK, 0, &dev);
+
#if !defined(CONFIG_SPL_BUILD)
board_ti_set_ethaddr(2);
#endif
diff --git a/configs/am57xx_evm_defconfig b/configs/am57xx_evm_defconfig
index 3b613e1..e2f558c 100644
--- a/configs/am57xx_evm_defconfig
+++ b/configs/am57xx_evm_defconfig
@@ -98,3 +98,5 @@
CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments"
CONFIG_USB_GADGET_VENDOR_NUM=0x0451
CONFIG_USB_GADGET_PRODUCT_NUM=0xd022
+CONFIG_CLK=y
+CONFIG_CLK_CDCE9XX=y