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| author | Hang Yu <francis_yuu@stu.pku.edu.cn> | 2023-08-12 14:52:30 +0800 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2023-09-01 11:40:04 +0200 |
| commit | acc3d20ab21b1e55619089d15ac29cf26e373fc9 (patch) | |
| tree | fc777a4932eff4240ac29d371b2e8f487e177872 | |
| parent | 961faf3ddbd8ffcdf776bbcf88af0bc97218114a (diff) | |
| download | focaccia-qemu-acc3d20ab21b1e55619089d15ac29cf26e373fc9.tar.gz focaccia-qemu-acc3d20ab21b1e55619089d15ac29cf26e373fc9.zip | |
hw/i2c/aspeed: Add support for buffer organization
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>
| -rw-r--r-- | hw/i2c/aspeed_i2c.c | 4 | ||||
| -rw-r--r-- | include/hw/i2c/aspeed_i2c.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c index 44905d7899..7275d40749 100644 --- a/hw/i2c/aspeed_i2c.c +++ b/hw/i2c/aspeed_i2c.c @@ -297,6 +297,10 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus) 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); diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h index 2e1e15aaf0..a064479e59 100644 --- a/include/hw/i2c/aspeed_i2c.h +++ b/include/hw/i2c/aspeed_i2c.h @@ -143,6 +143,7 @@ REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */ 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) |