diff mbox series

[08/10] aspeed/smc: Calculate checksum on normal DMA

Message ID 20190904070506.1052-9-clg@kaod.org (mailing list archive)
State New, archived
Headers show
Series Aspeed: machine extensions and fixes | expand

Commit Message

Cédric Le Goater Sept. 4, 2019, 7:05 a.m. UTC 
From: Christian Svensson <bluecmd@google.com>

This patch adds the missing checksum calculation on normal DMA transfer.
According to the datasheet this is how the SMC should behave.

Verified on AST1250 that the hardware matches the behaviour.

Signed-off-by: Christian Svensson <bluecmd@google.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/ssi/aspeed_smc.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index 5c3436db5e8f..9ffc7e01179a 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -989,6 +989,7 @@  static void aspeed_smc_dma_rw(AspeedSMCState *s)
         s->regs[R_DMA_FLASH_ADDR] += 4;
         s->regs[R_DMA_DRAM_ADDR] += 4;
         s->regs[R_DMA_LEN] -= 4;
+        s->regs[R_DMA_CHECKSUM] += data;
     }
 }