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SubjectRe: [PATCH v5 15/15] dmaengine: imx-sdma: add uart rom script
On 10-06-19, 16:17, yibin.gong@nxp.com wrote:
> From: Robin Gong <yibin.gong@nxp.com>
>
> For the compatibility of NXP internal legacy kernel before 4.19 which
> is based on uart ram script and upstreaming kernel based on uart rom
> script, add both uart ram/rom script in latest sdma firmware. By default
> uart rom script used.
> Besides, add two multi-fifo scripts for SAI/PDM on i.mx8m/8mm and add
> back qspi script miss for v4(i.mx7d/8m/8mm family, but v3 is for i.mx6).
>
> rom script:
> uart_2_mcu_addr
> uartsh_2_mcu_addr /* through spba bus */
> ram script:
> uart_2_mcu_ram_addr
> uartsh_2_mcu_ram_addr /* through spba bus */
>
> Please get latest sdma firmware from the below and put them into the path
> (/lib/firmware/imx/sdma/):
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
> /tree/imx/sdma

How does this work with folks have older firmware?

>
> Signed-off-by: Robin Gong <yibin.gong@nxp.com>
> ---
> drivers/dma/imx-sdma.c | 4 ++--
> include/linux/platform_data/dma-imx-sdma.h | 10 ++++++++--
> 2 files changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
> index f7c150d..deea9aa 100644
> --- a/drivers/dma/imx-sdma.c
> +++ b/drivers/dma/imx-sdma.c
> @@ -1733,8 +1733,8 @@ static void sdma_issue_pending(struct dma_chan *chan)
>
> #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1 34
> #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2 38
> -#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3 41
> -#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V4 42
> +#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3 45
> +#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V4 46
>
> static void sdma_add_scripts(struct sdma_engine *sdma,
> const struct sdma_script_start_addrs *addr)
> diff --git a/include/linux/platform_data/dma-imx-sdma.h b/include/linux/platform_data/dma-imx-sdma.h
> index f794fee..e12d2e8 100644
> --- a/include/linux/platform_data/dma-imx-sdma.h
> +++ b/include/linux/platform_data/dma-imx-sdma.h
> @@ -20,12 +20,12 @@ struct sdma_script_start_addrs {
> s32 per_2_firi_addr;
> s32 mcu_2_firi_addr;
> s32 uart_2_per_addr;
> - s32 uart_2_mcu_addr;
> + s32 uart_2_mcu_ram_addr;
> s32 per_2_app_addr;
> s32 mcu_2_app_addr;
> s32 per_2_per_addr;
> s32 uartsh_2_per_addr;
> - s32 uartsh_2_mcu_addr;
> + s32 uartsh_2_mcu_ram_addr;
> s32 per_2_shp_addr;
> s32 mcu_2_shp_addr;
> s32 ata_2_mcu_addr;
> @@ -52,7 +52,13 @@ struct sdma_script_start_addrs {
> s32 zcanfd_2_mcu_addr;
> s32 zqspi_2_mcu_addr;
> s32 mcu_2_ecspi_addr;
> + s32 mcu_2_sai_addr;
> + s32 sai_2_mcu_addr;
> + s32 uart_2_mcu_addr;
> + s32 uartsh_2_mcu_addr;
> /* End of v3 array */
> + s32 mcu_2_zqspi_addr;
> + /* End of v4 array */
> };
>
> /**
> --
> 2.7.4

--
~Vinod

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