diff options
| author | Nico Huber <nico.huber@secunet.com> | 2017-09-19 14:13:34 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-01-24 13:56:25 +0000 |
| commit | 016ef9e9bc36c60101b707a8c1c926e78350befa (patch) | |
| tree | 8c9254f2d4888d7bf14e18f2562f2fde564f724e /src/ec/kontron/kempld/kempld_internal.h | |
| parent | b2e610011cfa8c821d93b474274fdab383462c49 (diff) | |
ec/kontron: Add support for Kontron kempld
A programmable logic device used by Kontron as EC on their COM express
modules. The name `kempld` is taken from Linux kernel sources, as is the
I2C driver. The meaning of the acronym is unclear, probably: Kontron
Embedded Module PLD.
Change-Id: If9a0826c4a8f5c8cd573610c2d10561334258b36
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/29476
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/ec/kontron/kempld/kempld_internal.h')
| -rw-r--r-- | src/ec/kontron/kempld/kempld_internal.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/ec/kontron/kempld/kempld_internal.h b/src/ec/kontron/kempld/kempld_internal.h new file mode 100644 index 0000000000..93351ce772 --- /dev/null +++ b/src/ec/kontron/kempld/kempld_internal.h @@ -0,0 +1,46 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 secunet Security Networks AG + * + * 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. + */ + +#ifndef EC_KONTRON_KEMPLD_INTERNAL_H +#define EC_KONTRON_KEMPLD_INTERNAL_H + +#include <device/device.h> + +/* i/o ports */ +#define KEMPLD_IDX 0xa80 +#define KEMPLD_MUTEX_KEY 0x80 +#define KEMPLD_DAT 0xa81 + +/* indexed registers */ +#define KEMPLD_SPEC 0x06 +#define KEMPLD_SPEC_GET_MINOR(x) (x & 0x0f) +#define KEMPLD_SPEC_GET_MAJOR(x) (x >> 4 & 0x0f) + +#define KEMPLD_CFG 0x37 +#define KEMPLD_CFG_GPIO_I2C_MUX (1 << 0) + +#define KEMPLD_UART_0 0x30 +#define KEMPLD_UART_1 0x31 +#define KEMPLD_UART_IRQ_SHIFT 0 +#define KEMPLD_UART_IRQ_MASK (0xf << KEMPLD_UART_IRQ_SHIFT) +#define KEMPLD_UART_IO_SHIFT 4 +#define KEMPLD_UART_IO_MASK (0x3 << KEMPLD_UART_IO_SHIFT) +#define KEMPLD_UART_ENABLE 0x80 + +#define KEMPLD_CLK 33333333 /* 33MHz */ + +void kempld_i2c_device_init(struct device *const dev); + +#endif /* EC_KONTRON_KEMPLD_INTERNAL_H */ |