dma/xlnx-zdma: Populate DBG0.CMN_BUF_FREE

Populate DBG0.CMN_BUF_FREE so that SW can see some free space.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20200402134721.27863-3-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2020-04-02 15:47:18 +02:00 committed by Peter Maydell
parent 12ba36d910
commit 28009852aa

View File

@ -680,6 +680,12 @@ static RegisterAccessInfo zdma_regs_info[] = {
},{ .name = "ZDMA_CH_DBG0", .addr = A_ZDMA_CH_DBG0,
.rsvd = 0xfffffe00,
.ro = 0x1ff,
/*
* There's SW out there that will check the debug regs for free space.
* Claim that we always have 0x100 free.
*/
.reset = 0x100
},{ .name = "ZDMA_CH_DBG1", .addr = A_ZDMA_CH_DBG1,
.rsvd = 0xfffffe00,
.ro = 0x1ff,