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    Subject[PATCH v5 15/15] dmaengine: imx-sdma: add uart rom script
    Date
    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

    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
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