On Mon, Aug 10, 2020 at 10:57:42AM +0000, Robin Gong wrote: > 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. > + */ rsc -- Pengutronix e.K. | Dipl.-Ing. Robert Schwebel | Steuerwalder Str. 21 | https://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |
