diff options
| author | Tero Kristo <t-kristo@ti.com> | 2019-09-27 19:14:27 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-10-11 13:32:39 -0400 |
| commit | e8e683d33b0ccd43e03809bf4ea88a899a867473 (patch) | |
| tree | bd20a18c5e10430a1d22d21cb49b09279bc0909c | |
| parent | 260777fc2333183728d24fb0ffaa22a888c09655 (diff) | |
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>
| -rw-r--r-- | arch/arm/dts/am571x-idk-u-boot.dtsi | 5 | ||||
| -rw-r--r-- | arch/arm/dts/am572x-idk-u-boot.dtsi | 5 | ||||
| -rw-r--r-- | arch/arm/dts/am574x-idk-u-boot.dtsi | 5 | ||||
| -rw-r--r-- | arch/arm/dts/am57xx-idk-common-u-boot.dtsi | 23 | ||||
| -rw-r--r-- | board/ti/am57xx/board.c | 5 | ||||
| -rw-r--r-- | configs/am57xx_evm_defconfig | 2 |
6 files changed, 45 insertions, 0 deletions
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 0000000000..65199200ed --- /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 0000000000..65199200ed --- /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 0000000000..65199200ed --- /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 0000000000..b07aea0048 --- /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 f78e6c2e1f..237a834c53 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 @@ int board_late_init(void) { 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 @@ int board_late_init(void) 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 3b613e135c..e2f558cde7 100644 --- a/configs/am57xx_evm_defconfig +++ b/configs/am57xx_evm_defconfig @@ -98,3 +98,5 @@ CONFIG_USB_GADGET=y 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 |