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sb/intel/i82801jx: Add romstage smbus and i2c block operations 

Change-Id: I76bf1ed392d3d18059792106fc482d2259a3f084
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/20880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Arthur Heymans 2017-08-04 14:39:26 +02:00
parent ad29ec351e
commit d4ce1ded01
2 changed files with 21 additions and 0 deletions
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16
src/southbridge/intel/i82801jx/early_smbus.c
View File

@ -51,3 +51,19 @@ int smbus_read_byte(unsigned device, unsigned address)
{
return do_smbus_read_byte(SMBUS_IO_BASE, device, address);
}
int i2c_block_read(unsigned int device, unsigned int offset, u32 bytes, u8 *buf)
{
return do_i2c_block_read(SMBUS_IO_BASE, device, offset, bytes, buf);
}
int smbus_block_read(unsigned int device, unsigned int cmd, u8 bytes, u8 *buf)
{
return do_smbus_block_read(SMBUS_IO_BASE, device, cmd, bytes, buf);
}
int smbus_block_write(unsigned int device, unsigned int cmd, u8 bytes,
const u8 *buf)
{
return do_smbus_block_write(SMBUS_IO_BASE, device, cmd, bytes, buf);
}

5
src/southbridge/intel/i82801jx/i82801jx.h
View File

@ -224,6 +224,11 @@ static inline int lpc_is_mobile(const u16 devid)
#if defined(__PRE_RAM__)
void enable_smbus(void);
int smbus_read_byte(unsigned device, unsigned address);
int i2c_block_read(unsigned int device, unsigned int cmd, unsigned int bytes,
u8 *buf);
int smbus_block_read(unsigned int device, unsigned int cmd, u8 bytes, u8 *buf);
int smbus_block_write(unsigned int device, unsigned int cmd, u8 bytes,
const u8 *buf);
void i82801jx_early_init(void);
void i82801jx_dmi_setup(void);
void i82801jx_dmi_poll_vc1(void);