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author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-10-17 22:33:22 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-10-19 06:19:44 +0200 |
commit | a1ebbc42ad791369c2e4f626e46917bdb1459d72 (patch) | |
tree | a9cb880f9cdb7adfd02b3c751f1e9a1500cf91c6 /src/southbridge/amd/cimx/sb700/smbus_spd.h | |
parent | c5cc9f233c9b2a1decf57b6e51438d03152fe54e (diff) | |
download | coreboot-a1ebbc42ad791369c2e4f626e46917bdb1459d72.tar.xz |
AGESA fam12 fam14 fam15: Use common agesa_readSpd()
Remove northbridge specific callouts for AGESA_READ_SPD.
Move low-level SMBus code to southbridge.
Change-Id: I5fc91c49d9ef8e0af1c4d8194f857c61ce417d1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7113
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/southbridge/amd/cimx/sb700/smbus_spd.h')
-rw-r--r-- | src/southbridge/amd/cimx/sb700/smbus_spd.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/southbridge/amd/cimx/sb700/smbus_spd.h b/src/southbridge/amd/cimx/sb700/smbus_spd.h new file mode 100644 index 0000000000..107c79fb5b --- /dev/null +++ b/src/southbridge/amd/cimx/sb700/smbus_spd.h @@ -0,0 +1,65 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Advanced Micro Devices, Inc. + * + * 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, MA02110-1301 USA + */ + +#ifndef _SMBUS_SPD_H_ +#define _SMBUS_SPD_H_ + +#define READ_BIT 0x01 + +#define SMBUS_INTERRUPT_MASK 0x02 +#define HOSTBUSY_MASK 0x01 + +#define SMBUS_READ_BYTE_COMMAND 0x48 +#define SMBUS_READ_COMMAND 0x44 + +#define SMBUS_WRITE_BYTE_COMMAND 0x48 + +#define MAX_READ_TSC_COUNT (2000000000 / 10) + +#define PMIO_INDEX_REG 0xCD6 +#define PMIO_DATA_REG 0xCD7 + +#define SMBUS_BAR_LOW_BYTE 0x2C +#define SMBUS_BAR_HIGH_BYTE 0x2D + +#define SMBUS_STATUS_REG 0x00 +#define SMBUS_SLAVE_STATUS_REG 0x01 +#define SMBUS_COMMAND_REG 0x02 +#define SMBUS_CONTROL_REG 0x03 +#define SMBUS_HOST_CMD_REG 0x04 +#define SMBUS_DATA0_REG 0x05 +#define SMBUS_CLOCK_REG 0x0E + +#define STATUS__COMPLETED_SUCCESSFULLY 0x02 + +#define SMBUS_FREQUENCY_CONST 66000000 / 4 + +/* + * This function prototype is only used by the AMD Dinar mainboard. The SMBus + * write is used to select which socket's SPD will be read by the subsequent + * SPD read call. This function is being placed in the F15 wrapper code with + * the other SPD read functions because the next step of the SPD read clean-up + * will be to move the SMBus read/write functions into the southbridge to make + * them more generic. Having the writeSmbusByte() function in the same file as + * the readSmbusByte() function will ensure that the writeSmbusByte() function + * is not overlooked. + */ +UINT8 writeSmbusByte(UINT16 iobase, UINT8 address, UINT8 buffer, int offset); + +#endif |