From 5ee82832503ab46affbc5f12ce1088046e8ae28c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Tue, 3 Dec 2019 06:26:27 +0200 Subject: pcengines/apu2: Switch away from ROMCC_BOOTBLOCK MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add early SuperIO initialization in bootblock to enable early console. Also, remove some southbridge-specific initialization that has been moved to southbridge bootblock initialization in previous patch. The board obtains few additional timestamps: start of bootblock, end of bootblock, starting to load romstage and finished loading romstage. TEST=boot apu2 and launch Debian with Linux kernel 4.14.50 Signed-off-by: Michał Żygowski Change-Id: If770eff467b9a71d21eeb0963b6c3ebe72a88ef3 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36915 Reviewed-by: Kyösti Mälkki Tested-by: build bot (Jenkins) --- src/mainboard/pcengines/apu2/bootblock.c | 35 ++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/mainboard/pcengines/apu2/bootblock.c (limited to 'src/mainboard/pcengines/apu2/bootblock.c') diff --git a/src/mainboard/pcengines/apu2/bootblock.c b/src/mainboard/pcengines/apu2/bootblock.c new file mode 100644 index 0000000000..8318f39287 --- /dev/null +++ b/src/mainboard/pcengines/apu2/bootblock.c @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include + +#define SIO_PORT 0x2e +#define SERIAL1_DEV PNP_DEV(SIO_PORT, NCT5104D_SP1) +#define SERIAL2_DEV PNP_DEV(SIO_PORT, NCT5104D_SP2) + +void bootblock_mainboard_early_init(void) +{ + hudson_lpc_port80(); + hudson_clk_output_48Mhz(); + + /* COM2 on apu5 is reserved so only COM1 should be supported */ + if ((CONFIG_UART_FOR_CONSOLE == 1) && + !CONFIG(BOARD_PCENGINES_APU5)) + nuvoton_enable_serial(SERIAL2_DEV, CONFIG_TTYS0_BASE); + else if (CONFIG_UART_FOR_CONSOLE == 0) + nuvoton_enable_serial(SERIAL1_DEV, CONFIG_TTYS0_BASE); +} -- cgit v1.2.3