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author | Stefan Reinauer <reinauer@chromium.org> | 2012-12-11 15:51:47 -0800 |
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committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-12-12 06:02:04 +0100 |
commit | d8a5fd2321eb31ad976bf4d59195b47ac636489a (patch) | |
tree | 806b06d27e62f12ca74acf0eda951307aca7cd62 /src/ec/compal/ene932/ec.h | |
parent | f89e6b22c0c42983f94316d29cf4f2f73a6d2b84 (diff) | |
download | coreboot-d8a5fd2321eb31ad976bf4d59195b47ac636489a.tar.xz |
Add support for ENE932 EC w/ Compal firmware
Change-Id: I19b03139e7edfee6ff3e0bcef735bb36bfadc354
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2024
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/ec/compal/ene932/ec.h')
-rw-r--r-- | src/ec/compal/ene932/ec.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/ec/compal/ene932/ec.h b/src/ec/compal/ene932/ec.h new file mode 100644 index 0000000000..879925f539 --- /dev/null +++ b/src/ec/compal/ene932/ec.h @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 The Chromium OS Authors. All rights reserved. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * EC communication interface for COMPAL ENE932 Embedded Controller. + */ + +#ifndef _EC_COMPAL_ENE932_EC_H +#define _EC_COMPAL_ENE932_EC_H + +#define EC_IO 0xfd60 /* Mainboard specific. Could be Kconfig option */ +#define EC_IO_HIGH EC_IO + 1 +#define EC_IO_LOW EC_IO + 2 +#define EC_IO_DATA EC_IO + 3 + +/* ENE EC internal address space */ +#define REG_SPI_DATA 0xfeab +#define REG_SPI_COMMAND 0xfeac +#define REG_SPI_CONFIG 0xfead +#define CFG_CSn_FORCE_LOW (1 << 4) +#define CFG_COMMAND_WRITE_ENABLE (1 << 3) +#define CFG_STATUS (1 << 1) + + +#define KBD_DATA 0x60 +#define KBD_COMMAND 0x64 +#define KBD_STATUS 0x64 +#define KBD_IBF (1 << 1) // 1: input buffer full (data ready for ec) +#define KBD_OBF (1 << 0) // 1: output buffer full (data ready for host) + + +/* Wait 400ms for keyboard controller answers */ +#define KBC_TIMEOUT_IN_MS 400 + +u8 ec_kbc_read_ob(void); +void ec_kbc_write_cmd(u8 cmd); +void ec_kbc_write_ib(u8 data); +int kbc_cleanup_buffers(void); + +#endif /* _EC_COMPAL_ENE932_EC_H */ |