Re: [PATCH v11 12/12] dmaengine: imx-sdma: add uart rom script
From: Robert Schwebel <hidden>
Date: 2020-08-10 13:06:31
Also in:
linux-arm-kernel, linux-devicetree, linux-spi, lkml
On Mon, Aug 10, 2020 at 10:57:42AM +0000, Robin Gong wrote:
quoted hunk ↗ jump to hunk
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 5900e32..4db55b9 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c@@ -1754,6 +1754,19 @@ static void sdma_add_scripts(struct sdma_engine *sdma, for (i = 0; i < sdma->script_number; i++) if (addr_arr[i] > 0) saddr_arr[i] = addr_arr[i]; + + /* + * get uart_2_mcu_addr/uartsh_2_mcu_addr rom script specially because + * they are now replaced by uart_2_mcu_ram_addr/uartsh_2_mcu_ram_addr + * to be compatible with legacy freescal/nxp sdma firmware, and they
freescale
+ * are located in the bottom part of sdma_script_start_addrs which are + * beyond the SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1. + */
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