| /* |
| * 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 <bootblock_common.h> |
| #include <soc/soc.h> |
| #include <soc/spi.h> |
| #include <soc/uart.h> |
| |
| void bootblock_mainboard_early_init(void) |
| { |
| if (CONFIG(BOOTBLOCK_CONSOLE)) { |
| if (!uart_is_enabled(CONFIG_UART_FOR_CONSOLE)) |
| uart_setup(CONFIG_UART_FOR_CONSOLE, CONFIG_TTYS0_BAUD); |
| } |
| } |
| |
| static void configure_spi_flash(void) |
| { |
| /* FIXME: Only tested on EM100 Pro */ |
| spi_init_custom(0, // bus |
| 25000000, // speed Hz |
| 0, // idle low disabled |
| 0, // zero idle cycles between transfers |
| 0, // MSB first |
| 0, // Chip select 0 |
| 1); // assert is high |
| } |
| |
| void bootblock_mainboard_init(void) |
| { |
| configure_spi_flash(); |
| } |