mirror of
https://github.com/AsahiLinux/u-boot
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17fa032671
commit: 65f83802b7 "serial: 16550: Add getfcr accessor"
breaks u-boot commandline working with long commands
sending to the board.
Since the above patch, you have to setup the fcr register.
For board/archs which enable OF_PLATDATA, the new field
fcr in struct ns16550_platdata is not filled with a
default value ...
This leads in not setting up the uarts fifo, which ends
in problems, when you send long commands to u-boots
commandline.
Detected this issue with automated tbot tests on am335x
based shc board.
The error does not popup, if you type commands. You need
to copy&paste a long command to u-boots commandshell
(or send a long command with tbot)
Possible boards/plattforms with problems:
./arch/arm/cpu/arm926ejs/lpc32xx/devices.c
./arch/arm/mach-tegra/board.c
./board/overo/overo.c
./board/quipos/cairo/cairo.c
./board/logicpd/omap3som/omap3logic.c
./board/logicpd/zoom1/zoom1.c
./board/timll/devkit8000/devkit8000.c
./board/lg/sniper/sniper.c
./board/ti/beagle/beagle.c
./drivers/serial/serial_rockchip.c
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/*
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* Copyright (c) 2014 DENX
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* Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
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*
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* Derived from code written by Robert Aigner (ra@spiid.net)
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*
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* Itself derived from Beagle Board and 3430 SDP code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <netdev.h>
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#include <ns16550.h>
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#include <asm/io.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/sys_proto.h>
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#include <i2c.h>
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#include <asm/mach-types.h>
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#include <asm/omap_mmc.h>
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#include "cairo.h"
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* MUSB port on OMAP3EVM Rev >= E requires extvbus programming.
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*/
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u8 omap3_evm_need_extvbus(void)
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{
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u8 retval = 0;
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/* TODO: verify if cairo handheld platform needs extvbus programming */
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return retval;
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}
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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/* board id for Linux */
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gd->bd->bi_arch_number = MACH_TYPE_OMAP3_CAIRO;
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/* boot param addr */
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gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
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return 0;
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}
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/*
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* Routine: set_muxconf_regs
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* Description: Setting up the configuration Mux registers specific to the
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* hardware. Many pins need to be moved from protect to primary
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* mode.
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*/
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void set_muxconf_regs(void)
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{
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MUX_CAIRO();
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}
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#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
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int board_mmc_init(bd_t *bis)
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{
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return omap_mmc_init(0, 0, 0, -1, -1);
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}
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#endif
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#ifdef CONFIG_SPL_BUILD
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/*
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* Routine: get_board_mem_timings
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* Description: If we use SPL then there is no x-loader nor config header
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* so we have to setup the DDR timings ourself on the first bank. This
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* provides the timing values back to the function that configures
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* the memory.
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*
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* The Cairo board uses SAMSUNG DDR - K4X51163PG-FGC6
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*/
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void get_board_mem_timings(struct board_sdrc_timings *timings)
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{
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timings->sharing = SAMSUNG_SHARING;
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timings->mcfg = SAMSUNG_V_MCFG_165(128 << 20);
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timings->ctrla = SAMSUNG_V_ACTIMA_165;
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timings->ctrlb = SAMSUNG_V_ACTIMB_165;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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timings->mr = SAMSUNG_V_MR_165;
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}
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#endif
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static const struct ns16550_platdata cairo_serial = {
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.base = OMAP34XX_UART2,
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.reg_shift = 2,
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.clock = V_NS16550_CLK,
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.fcr = UART_FCR_DEFVAL,
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};
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U_BOOT_DEVICE(cairo_uart) = {
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"ns16550_serial",
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&cairo_serial
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};
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/* force SPL booting into U-Boot, not Linux */
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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return 1;
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}
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#endif
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