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smbus: Add a helper to generate SPD EEPROM data

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There are several boards with SPD EEPROMs that are now using
duplicated or slightly different hard coded data. Add a helper to
generate SPD data for a memory module of given type and size that
could be used by these boards (either as is or with further changes if
needed) which should help cleaning this up and avoid further duplication.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
BALATON Zoltan 2019-01-03 17:27:24 +01:00 • committed by David Gibson
parent 583b28d45b
commit b296b664ab
2 changed files with 132 additions and 0 deletions
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3
include/hw/i2c/smbus.h
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@ -95,4 +95,7 @@ void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf);
void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
const uint8_t *eeprom_spd, int size);
enum sdram_type { SDR = 0x4, DDR = 0x7, DDR2 = 0x8 };
uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t size, Error **errp);
#endif