From: Shaohui Xie Shaohui.Xie@nxp.com

LPUART0 is used by default, and it's using platform clock, if a different clock is preferred, user can define CONFIG_LPUART_CLK.

Signed-off-by: Shaohui Xie Shaohui.Xie@nxp.com --- arch/arm/dts/Makefile | 1 + arch/arm/dts/fsl-ls1046a-qds-lpuart.dts | 16 ++++++++++ arch/arm/dts/fsl-ls1046a-qds.dtsi | 4 +++ arch/arm/dts/fsl-ls1046a.dtsi | 54 +++++++++++++++++++++++++++++++++ board/freescale/ls1046aqds/ls1046aqds.c | 21 +++++++++++++ configs/ls1046aqds_lpuart_defconfig | 29 ++++++++++++++++++ include/configs/ls1046aqds.h | 8 +++++ 7 files changed, 133 insertions(+) create mode 100644 arch/arm/dts/fsl-ls1046a-qds-lpuart.dts create mode 100644 configs/ls1046aqds_lpuart_defconfig

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 715e9bd..4a7d53b 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -144,6 +144,7 @@ dtb-$(CONFIG_FSL_LSCH2) += fsl-ls1043a-qds-duart.dtb \ fsl-ls1043a-qds-lpuart.dtb \ fsl-ls1043a-rdb.dtb \ fsl-ls1046a-qds-duart.dtb \ + fsl-ls1046a-qds-lpuart.dtb \ fsl-ls1046a-rdb.dtb \ fsl-ls1012a-qds.dtb \ fsl-ls1012a-rdb.dtb \ diff --git a/arch/arm/dts/fsl-ls1046a-qds-lpuart.dts b/arch/arm/dts/fsl-ls1046a-qds-lpuart.dts new file mode 100644 index 0000000..21243d0 --- /dev/null +++ b/arch/arm/dts/fsl-ls1046a-qds-lpuart.dts @@ -0,0 +1,16 @@ +/* + * Device Tree file for Freescale Layerscape-1046A family SoC. + * + * Copyright (C) 2016, Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/dts-v1/; +#include "fsl-ls1046a-qds.dtsi" + +/ { + chosen { + stdout-path = &lpuart0; + }; +}; diff --git a/arch/arm/dts/fsl-ls1046a-qds.dtsi b/arch/arm/dts/fsl-ls1046a-qds.dtsi index c512293..a49ca08 100644 --- a/arch/arm/dts/fsl-ls1046a-qds.dtsi +++ b/arch/arm/dts/fsl-ls1046a-qds.dtsi @@ -75,3 +75,7 @@ &duart1 { status = "okay"; }; + +&lpuart0 { + status = "okay"; +}; diff --git a/arch/arm/dts/fsl-ls1046a.dtsi b/arch/arm/dts/fsl-ls1046a.dtsi index 87dd997..359a9d1 100644 --- a/arch/arm/dts/fsl-ls1046a.dtsi +++ b/arch/arm/dts/fsl-ls1046a.dtsi @@ -151,6 +151,60 @@ clocks = <&clockgen 4 0>; };

+ lpuart0: serial@2950000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2950000 0x0 0x1000>; + interrupts = <0 48 0x4>; + clocks = <&clockgen 4 0>; + clock-names = "ipg"; + status = "disabled"; + }; + + lpuart1: serial@2960000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2960000 0x0 0x1000>; + interrupts = <0 49 0x4>; + clocks = <&clockgen 4 1>; + clock-names = "ipg"; + status = "disabled"; + }; + + lpuart2: serial@2970000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2970000 0x0 0x1000>; + interrupts = <0 50 0x4>; + clocks = <&clockgen 4 1>; + clock-names = "ipg"; + status = "disabled"; + }; + + lpuart3: serial@2980000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2980000 0x0 0x1000>; + interrupts = <0 51 0x4>; + clocks = <&clockgen 4 1>; + clock-names = "ipg"; + status = "disabled"; + }; + + lpuart4: serial@2990000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2990000 0x0 0x1000>; + interrupts = <0 52 0x4>; + clocks = <&clockgen 4 1>; + clock-names = "ipg"; + status = "disabled"; + }; + + lpuart5: serial@29a0000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x29a0000 0x0 0x1000>; + interrupts = <0 53 0x4>; + clocks = <&clockgen 4 1>; + clock-names = "ipg"; + status = "disabled"; + }; + qspi: quadspi@1550000 { compatible = "fsl,vf610-qspi"; #address-cells = <1>; diff --git a/board/freescale/ls1046aqds/ls1046aqds.c b/board/freescale/ls1046aqds/ls1046aqds.c index 8c18538..96d929d 100644 --- a/board/freescale/ls1046aqds/ls1046aqds.c +++ b/board/freescale/ls1046aqds/ls1046aqds.c @@ -120,6 +120,16 @@ unsigned long get_board_ddr_clk(void) return 66666666; }

+#ifdef CONFIG_LPUART +u32 get_lpuart_clk(void) +{ +#ifdef CONFIG_LPUART_CLK + return CONFIG_LPUART_CLK; +#endif + return gd->bus_clk; +} +#endif + int select_i2c_ch_pca9547(u8 ch) { int ret; @@ -157,6 +167,9 @@ int board_early_init_f(void) struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; u32 usb_pwrfault; #endif +#ifdef CONFIG_LPUART + u8 uart; +#endif

#ifdef CONFIG_SYS_I2C_EARLY_INIT i2c_early_init_f(); @@ -175,6 +188,14 @@ int board_early_init_f(void) out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault); #endif

+#ifdef CONFIG_LPUART + /* We use lpuart0 as system console */ + uart = QIXIS_READ(brdcfg[14]); + uart &= ~CFG_UART_MUX_MASK; + uart |= CFG_LPUART_EN << CFG_UART_MUX_SHIFT; + QIXIS_WRITE(brdcfg[14], uart); +#endif + return 0; }

diff --git a/configs/ls1046aqds_lpuart_defconfig b/configs/ls1046aqds_lpuart_defconfig new file mode 100644 index 0000000..8e5b45d --- /dev/null +++ b/configs/ls1046aqds_lpuart_defconfig @@ -0,0 +1,29 @@ +CONFIG_ARM=y +CONFIG_TARGET_LS1046AQDS=y +CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1046a-qds-lpuart" +CONFIG_FIT=y +CONFIG_FIT_VERBOSE=y +CONFIG_OF_BOARD_SETUP=y +CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,LPUART" +CONFIG_BOOTDELAY=10 +CONFIG_HUSH_PARSER=y +CONFIG_CMD_BOOTZ=y +CONFIG_CMD_GREPENV=y +CONFIG_CMD_MEMTEST=y +CONFIG_CMD_MEMINFO=y +CONFIG_CMD_MMC=y +CONFIG_CMD_SF=y +CONFIG_CMD_I2C=y +CONFIG_CMD_DHCP=y +CONFIG_CMD_MII=y +CONFIG_CMD_PING=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_FAT=y +CONFIG_OF_CONTROL=y +CONFIG_DM=y +CONFIG_DM_SPI=y +CONFIG_SPI_FLASH=y +CONFIG_FSL_DSPI=y +CONFIG_DM_SERIAL=y +CONFIG_FSL_LPUART=y diff --git a/include/configs/ls1046aqds.h b/include/configs/ls1046aqds.h index 2e5c2f1..bc71770 100644 --- a/include/configs/ls1046aqds.h +++ b/include/configs/ls1046aqds.h @@ -132,6 +132,14 @@ unsigned long get_board_ddr_clk(void); #endif #endif

+/* LPUART */ +#ifdef CONFIG_LPUART +#define CONFIG_LPUART_32B_REG +#define CFG_UART_MUX_MASK 0x6 +#define CFG_UART_MUX_SHIFT 1 +#define CFG_LPUART_EN 0x2 +#endif + /* SATA */ #define CONFIG_LIBATA #define CONFIG_SCSI_AHCI