Added support for the buffer organization option in pool buffer control
register.when set to 1,The buffer is split into two parts: Lower 16 bytes
for Tx and higher 16 bytes for Rx.
Signed-off-by: Hang Yu <francis_yuu@stu.pku.edu.cn>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: checkpatch fixes ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_BUFF_EN)) {
uint8_t *pool_base = aic->bus_pool_base(bus);
+ if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_pool_ctrl,
+ BUF_ORGANIZATION)) {
+ pool_base += 16;
+ }
for (i = 0; i < pool_rx_count; i++) {
pool_base[i] = i2c_recv(bus->bus);
SHARED_FIELD(RX_SIZE, 16, 5)
SHARED_FIELD(TX_COUNT, 8, 5)
FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
+ SHARED_FIELD(BUF_ORGANIZATION, 0, 1) /* AST2600 */
REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
SHARED_FIELD(RX_BUF, 8, 8)
SHARED_FIELD(TX_BUF, 0, 8)