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| author | Sai Pavan Boddu <saipava@xilinx.com> | 2018-06-26 17:50:39 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-26 17:50:39 +0100 |
| commit | 21d887cde954ca683f37d9c7d20371cdf26686be (patch) | |
| tree | e60fb0842c9998a80a2a800915f2b479bc443a2d /include/hw/ssi | |
| parent | 1f7161d2c83a4ebba296ffece26f992be5754471 (diff) | |
| download | qemu-21d887cde954ca683f37d9c7d20371cdf26686be.zip qemu-21d887cde954ca683f37d9c7d20371cdf26686be.tar.gz qemu-21d887cde954ca683f37d9c7d20371cdf26686be.tar.bz2 | |
xilinx_spips: Make dma transactions as per dma_burst_size
Qspi dma has a burst length of 64 bytes, So limit the transactions w.r.t
dma-burst-size property.
Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1529660880-30376-1-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/hw/ssi')
| -rw-r--r-- | include/hw/ssi/xilinx_spips.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/hw/ssi/xilinx_spips.h b/include/hw/ssi/xilinx_spips.h index d398a4e..a0a0ae7 100644 --- a/include/hw/ssi/xilinx_spips.h +++ b/include/hw/ssi/xilinx_spips.h @@ -37,6 +37,8 @@ typedef struct XilinxSPIPS XilinxSPIPS; /* Bite off 4k chunks at a time */ #define LQSPI_CACHE_SIZE 1024 +#define QSPI_DMA_MAX_BURST_SIZE 2048 + typedef enum { READ = 0x3, READ_4 = 0x13, FAST_READ = 0xb, FAST_READ_4 = 0x0c, @@ -95,7 +97,6 @@ typedef struct { XilinxQSPIPS parent_obj; StreamSlave *dma; - uint8_t dma_buf[4]; int gqspi_irqline; uint32_t regs[XLNX_ZYNQMP_SPIPS_R_MAX]; @@ -113,6 +114,8 @@ typedef struct { uint8_t rx_fifo_g_align; uint8_t tx_fifo_g_align; bool man_start_com_g; + uint32_t dma_burst_size; + uint8_t dma_buf[QSPI_DMA_MAX_BURST_SIZE]; } XlnxZynqMPQSPIPS; typedef struct XilinxSPIPSClass { |