diff options
Diffstat (limited to 'include/linux/eeprom_93cx6.h')
| -rw-r--r-- | include/linux/eeprom_93cx6.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h index c860c72a921d..3a485cc0e0fa 100644 --- a/include/linux/eeprom_93cx6.h +++ b/include/linux/eeprom_93cx6.h @@ -11,6 +11,8 @@ Supported chipsets: 93c46, 93c56 and 93c66. */ +#include <linux/bits.h> + /* * EEPROM operation defines. */ @@ -34,6 +36,7 @@ * @register_write(struct eeprom_93cx6 *eeprom): handler to * write to the eeprom register by using all reg_* fields. * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines + * @quirks: eeprom or controller quirks * @drive_data: Set if we're driving the data line. * @reg_data_in: register field to indicate data input * @reg_data_out: register field to indicate data output @@ -50,6 +53,9 @@ struct eeprom_93cx6 { void (*register_write)(struct eeprom_93cx6 *eeprom); int width; + unsigned int quirks; +/* Some EEPROMs require an extra clock cycle before reading */ +#define PCI_EEPROM_QUIRK_EXTRA_READ_CYCLE BIT(0) char drive_data; char reg_data_in; @@ -71,3 +77,8 @@ extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable); extern void eeprom_93cx6_write(struct eeprom_93cx6 *eeprom, u8 addr, u16 data); + +static inline bool has_quirk_extra_read_cycle(struct eeprom_93cx6 *eeprom) +{ + return eeprom->quirks & PCI_EEPROM_QUIRK_EXTRA_READ_CYCLE; +} |