diff options
Diffstat (limited to 'src/mainboard/lenovo/s230u/mainboard.c')
-rw-r--r-- | src/mainboard/lenovo/s230u/mainboard.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/s230u/mainboard.c b/src/mainboard/lenovo/s230u/mainboard.c new file mode 100644 index 0000000000..9ed2a4b14f --- /dev/null +++ b/src/mainboard/lenovo/s230u/mainboard.c @@ -0,0 +1,93 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * Copyright (C) 2017 Tobias Diedrich <ranma+coreboot@tdiedrich.de> + * + * 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 <arch/io.h> +#include <device/device.h> +#include <console/console.h> +#include <drivers/intel/gma/int15.h> +#include <ec/acpi/ec.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <southbridge/intel/common/gpio.h> +#include <string.h> +#include <smbios.h> +#include "ec.h" + +#include <arch/acpi.h> + +static void mainboard_init(device_t dev) +{ + RCBA32(0x38c8) = 0x00002005; + RCBA32(0x38c4) = 0x00802005; + RCBA32(0x38c0) = 0x00000007; +} + +static u8 mainboard_fill_ec_version(char *buf, u8 buf_len) +{ + u8 i, c; + char str[16 + 1]; /* 16 ASCII chars + \0 */ + + /* Build ID */ + for (i = 0; i < 8; i++) { + c = ec_mm_read(0xf0 + i); + if (c < 0x20 || c > 0x7f) { + i = snprintf(str, sizeof(str), "*INVALID"); + break; + } + str[i] = c; + } + + i = MIN(buf_len, i); + memcpy(buf, str, i); + + return i; +} + +static void mainboard_smbios_strings( + struct device *dev, struct smbios_type11 *t) +{ + char tpec[] = "IBM ThinkPad Embedded Controller -[ ]-"; + u16 fwvh, fwvl; + + mainboard_fill_ec_version(tpec + 35, 17); + t->count = smbios_add_string(t->eos, tpec); + + /* Apparently byteswapped compared to H8 */ + fwvh = ec_mm_read(0xe8); + fwvl = ec_mm_read(0xe9); + + printk(BIOS_INFO, "EC Firmware ID %.54s, Version %d.%d%d%c\n", tpec, + fwvh >> 4, fwvh & 0x0f, fwvl >> 4, 0x41 + (fwvl & 0xf)); +} + +static void mainboard_enable(device_t dev) +{ + dev->ops->init = mainboard_init; + dev->ops->get_smbios_strings = mainboard_smbios_strings, + + install_intel_vga_int15_handler( + GMA_INT15_ACTIVE_LFP_INT_LVDS, + GMA_INT15_PANEL_FIT_DEFAULT, + GMA_INT15_BOOT_DISPLAY_DEFAULT, + 0); + + if (!acpi_is_wakeup_s3()) + lenovo_s230u_ec_init(); +} + +struct chip_operations mainboard_ops = { + .enable_dev = mainboard_enable, +}; |