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[PULL 04/26] hw/i2c/aspeed: Add support for buffer organization
From: |
Cédric Le Goater |
Subject: |
[PULL 04/26] hw/i2c/aspeed: Add support for buffer organization |
Date: |
Fri, 1 Sep 2023 11:41:52 +0200 |
From: Hang Yu <francis_yuu@stu.pku.edu.cn>
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>
---
include/hw/i2c/aspeed_i2c.h | 1 +
hw/i2c/aspeed_i2c.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 2e1e15aaf0f7..a064479e599c 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)
diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c
index 44905d789998..7275d40749a9 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);
--
2.41.0
- [PULL 00/26] aspeed queue, Cédric Le Goater, 2023/09/01
- [PULL 01/26] aspeed: Introduce helper for 32-bit hosts limitation, Cédric Le Goater, 2023/09/01
- [PULL 02/26] hw/i2c/aspeed: Fix Tx count and Rx size error in buffer pool mode, Cédric Le Goater, 2023/09/01
- [PULL 03/26] hw/i2c/aspeed: Fix TXBUF transmission start position error, Cédric Le Goater, 2023/09/01
- [PULL 05/26] tests/avocado/machine_aspeed.py: Update SDK images, Cédric Le Goater, 2023/09/01
- [PULL 06/26] hw/ssi: Add a "cs" property to SSIPeripheral, Cédric Le Goater, 2023/09/01
- [PULL 04/26] hw/i2c/aspeed: Add support for buffer organization,
Cédric Le Goater <=
- [PULL 07/26] hw/ssi: Introduce a ssi_get_cs() helper, Cédric Le Goater, 2023/09/01
- [PULL 09/26] hw/ssi: Check for duplicate CS indexes, Cédric Le Goater, 2023/09/01
- [PULL 08/26] aspeed/smc: Wire CS lines at reset, Cédric Le Goater, 2023/09/01
- [PULL 11/26] m25p80: Introduce an helper to retrieve the BlockBackend of a device, Cédric Le Goater, 2023/09/01
- [PULL 12/26] aspeed: Get the BlockBackend of FMC0 from the flash device, Cédric Le Goater, 2023/09/01
- [PULL 13/26] hw/sd/sdcard: Return ILLEGAL for CMD19/CMD23 prior SD spec v3.01, Cédric Le Goater, 2023/09/01
- [PULL 15/26] hw/sd: When card is in wrong state, log which spec version is used, Cédric Le Goater, 2023/09/01
- [PULL 14/26] hw/sd: When card is in wrong state, log which state it is, Cédric Le Goater, 2023/09/01
- [PULL 10/26] aspeed: Create flash devices only when defaults are enabled, Cédric Le Goater, 2023/09/01
- [PULL 17/26] hw/sd: Introduce sd_cmd_handler type, Cédric Le Goater, 2023/09/01