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adc097e133
ttyO2 console enables legacy CONFIG_SERIAL_OMAP driver in kernel.
Nowadays it's preferred to use the generic CONFIG_SERIAL_8250_OMAP
driver, which being enabled via ttyS2 console. Both drivers are enabled
in multi_v7_defconfig and in omap2plus_defconfig, for compatibility
reasons. Let's switch to ttyS2 console, to be sure that standard 8250
serial driver is used.
Similar behavior can be also achieved by enabling
CONFIG_SERIAL_8250_OMAP_TTYO_FIXUP option in kernel, but it's better not
to rely on that, as it can be disabled or removed after transitional
period.
Right now on DRA7/AM57x platforms the 8250-omap driver is being probed
first, and omap-serial driver is only probed if the first one failed.
It can be seen from uart3 definition in arch/arm/boot/dts/dra7-l4.dtsi:
compatible = "ti,dra742-uart", "ti,omap4-uart";
So the kernel already uses 8250 driver. This change basically allows
kernel developers to throw away the omap-serial driver and associated
compatibility options. Similar discussions [1,2] have started several
years ago, so it should be safe to do that now.
[1] https://patchwork.kernel.org/patch/6198471/
[2] http://processors.wiki.ti.com/index.php/Sitara_Linux_UART_-_Switching_to_8250_Driver
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Andrew F. Davis <afd@ti.com>
[trini: Update omap5_uevm]
Signed-off-by: Tom Rini <trini@konsulko.com>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2013
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* Texas Instruments Incorporated.
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* Sricharan R <r.sricharan@ti.com>
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*
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* Configuration settings for the TI EVM5430 board.
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* See ti_omap5_common.h for omap5 common settings.
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*/
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#ifndef __CONFIG_OMAP5_EVM_H
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#define __CONFIG_OMAP5_EVM_H
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#include <environment/ti/dfu.h>
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#ifndef CONFIG_SPL_BUILD
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/* Define the default GPT table for eMMC */
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#define PARTS_DEFAULT \
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"uuid_disk=${uuid_gpt_disk};" \
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"name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}"
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#endif
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#define DFUARGS \
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"dfu_bufsiz=0x10000\0" \
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DFU_ALT_INFO_MMC \
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DFU_ALT_INFO_EMMC \
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DFU_ALT_INFO_RAM
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#include <configs/ti_omap5_common.h>
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#define CONFIG_SYS_NS16550_COM3 UART3_BASE
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/* MMC ENV related defines */
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#define CONFIG_SYS_MMC_ENV_DEV 1 /* SLOT2: eMMC(1) */
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#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
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#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
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/* Enhance our eMMC support / experience. */
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#define CONFIG_HSMMC2_8BIT
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/* Required support for the TCA642X GPIO we have on the uEVM */
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#define CONFIG_TCA642X
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#define CONFIG_SYS_I2C_TCA642X_BUS_NUM 4
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#define CONFIG_SYS_I2C_TCA642X_ADDR 0x22
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/* USB UHH support options */
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#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
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#define CONFIG_OMAP_EHCI_PHY2_RESET_GPIO 80
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#define CONFIG_OMAP_EHCI_PHY3_RESET_GPIO 79
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/* Enabled commands */
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/* USB Networking options */
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#define CONSOLEDEV "ttyS2"
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#define CONFIG_SCSI_AHCI_PLAT
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#define CONFIG_SYS_SCSI_MAX_SCSI_ID 1
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#define CONFIG_SYS_SCSI_MAX_LUN 1
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#define CONFIG_SYS_SCSI_MAX_DEVICE (CONFIG_SYS_SCSI_MAX_SCSI_ID * \
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CONFIG_SYS_SCSI_MAX_LUN)
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#endif /* __CONFIG_OMAP5_EVM_H */
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