Re: fsl_ssi.c: Getting channel slips with fsl_ssi.c in TDM (network) mode.

[Nicolin Chen <nicoleotsuka@gmail.com>]

On Thu, Oct 29, 2015 at 08:54:00AM -0700, Caleb Crome wrote:

> The 35 and 36 are for Dual fifo mode only, and no current system (with
> fsl_ssi.c anyway) uses dual fifo mode.  How do I know?  Because the
> it's definitely broken in the fsl_ssi.c.  I was just about to report
> that bug.

Broken? Where? The reason why there's no current system using that
is because there is no SDMA patch to upload a newer version of the
SDMA firmware which is always included in the Freescale official
release. Yes, you saw that patch in the beginning of this thread.
For SDMA DT binding, number 22 is the configurations of Dual FIFO
script but it would break most of the upstream users as upstream
Kernels running with a default ROM firmware don't have that script.

If you want to use Dual FIFO mode with upstream Kernels, apply the
change I provided you in my previous reply along with these two:

commit 2490a94afbcb139f68f7872e5645d66b99720a52
Author: Shawn Guo <shawn.guo@freescale.com>
Date:   Tue Jul 16 22:53:18 2013 +0800

    ENGR00269945: firwmare: imx: add imx6q sdma script
    
    Add imx6q sdma script which will be used by all i.MX6 series.
    
    Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

diff --git a/firmware/Makefile b/firmware/Makefile
index e297e1b..7b22ab3 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -61,6 +61,7 @@ fw-shipped-$(CONFIG_DRM_RADEON) += radeon/R100_cp.bin radeon/R200_cp.bin \
 				   radeon/RV770_pfp.bin radeon/RV770_me.bin \
 				   radeon/RV730_pfp.bin radeon/RV730_me.bin \
 				   radeon/RV710_pfp.bin radeon/RV710_me.bin
+fw-shipped-$(CONFIG_IMX_SDMA) += imx/sdma/sdma-imx6q.bin
 fw-shipped-$(CONFIG_DVB_AV7110) += av7110/bootcode.bin
 fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin
 fw-shipped-$(CONFIG_E100) += e100/d101m_ucode.bin e100/d101s_ucode.bin \
diff --git a/firmware/imx/sdma/sdma-imx6q.bin.ihex b/firmware/imx/sdma/sdma-imx6q.bin.ihex
new file mode 100644
index 0000000..2e561f0
--- /dev/null
+++ b/firmware/imx/sdma/sdma-imx6q.bin.ihex
@@ -0,0 +1,116 @@
+:1000000053444D4101000000010000001C000000AD
+:1000100026000000B40000007A0600008202000002
+:10002000FFFFFFFF00000000FFFFFFFFFFFFFFFFDC
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commit 870291e6b0019ff0a9a135f2641c7801b36a80ef
Author: Nicolin Chen <nicoleotsuka@gmail.com>
Date:   Thu Sep 4 21:42:35 2014 -0700

    firmware: imx: sdma v2
    
    In the upstream kernel, i.MX6 series uses SDMA firmware V2. However,
    we actually don't have a strict version control internally. So this
    patch just simply hacks the firmware to change the version number to
    V2.
    
    Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>

diff --git a/firmware/imx/sdma/sdma-imx6q.bin.ihex b/firmware/imx/sdma/sdma-imx6q.bin.ihex
index 2e561f0..ceb114b 100644
--- a/firmware/imx/sdma/sdma-imx6q.bin.ihex
+++ b/firmware/imx/sdma/sdma-imx6q.bin.ihex
@@ -1,4 +1,4 @@
-:1000000053444D4101000000010000001C000000AD
+:1000000053444D4102000000010000001C000000AC
 :1000100026000000B40000007A0600008202000002
 :10002000FFFFFFFF00000000FFFFFFFFFFFFFFFFDC
 :10003000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD0