Re: [meta-ti][scarthgap/master][PATCH] ti-bsp: Disable GC320 support conditionally on BSP version

[Andrew Davis via lists.yoctoproject.org]

On 12/18/24 3:19 PM, Denys Dmytriyenko wrote:

Andrew,

Thanks for the patches. Ryan and I were discussing them yesterday.

Couple points/questions:

1. There's meta-beagle restructuring going on in master right now - the
changes are in master-next and should be merged to master shortly. I also
just posted a series to backport these changes to scarthgap. That will
affect your change below to ti-bsp.inc and will need to be re-spinned.

No worries. The restructure looks good btw, looking forward to having
cleaner separation (and the new BeagleY-AI builds :D). I'll re-spin this
when meta-beagle lands in master and scarthgap.

2. A more generic question... GC320 is a unique peripheral of legacy AM57/J6
platforms and the driver for it hasn't been updated since 5.10 times. It
has been disabled globally in the Distro layer for a couple years now. While
I do understand your change to move this disablenent from the Distro to
BSP, are there any plans to revive GC320 support and not simply remove it
altogether?

The fix to get the GC320 kernel module building again is rather trivial. Just
never got around to pushing the fixes. So mostly just wishful thinking that it
will get re-enabled here at some point..

Andrew

On Tue, Dec 17, 2024 at 02:59:45PM -0600, Andrew Davis via 
lists.yoctoproject.org wrote:

Like we do with GPU support, GC320 support is conditional on the
kernel we are building and so should be disabled here for kernels
on which it is not functional yet.

We can then remove these disabling lines as the driver is updated
for each supported kernel, instead of blanket disabling in the
distro layer as done currently.

Signed-off-by: Andrew Davis <a...@ti.com>
---
  meta-ti-bsp/conf/machine/include/ti-bsp.inc | 18 ++++++++++++++++++
  1 file changed, 18 insertions(+)

diff --git a/meta-ti-bsp/conf/machine/include/ti-bsp.inc 
b/meta-ti-bsp/conf/machine/include/ti-bsp.inc
index 814c6ca8..bdc8bef7 100644
--- a/meta-ti-bsp/conf/machine/include/ti-bsp.inc
+++ b/meta-ti-bsp/conf/machine/include/ti-bsp.inc
@@ -22,6 +22,9 @@ BSP_BOOTLOADER_VERSION:bsp-mainline = "%"
  # in mainline, usually present in TI staging or derivative like BB.org
  MACHINE_FEATURES:remove:bsp-mainline = "gpu"

+# GC320 support requires out-of-tree drivers not available in mainline

+MACHINE_FEATURES:remove:bsp-mainline = "gc320"
+
  # ==========
  # next
  # upcoming upstream/mainline kernel, u-boot
@@ -35,6 +38,9 @@ BSP_BOOTLOADER_VERSION:bsp-next = "%"
  # in next, usually present in TI staging or derivative like BB.org
  MACHINE_FEATURES:remove:bsp-next = "gpu"

+# GC320 support requires out-of-tree drivers not available in next

+MACHINE_FEATURES:remove:bsp-next = "gc320"
+
  # ==========
  # ti-6_12
  # TI staging kernel 6.12, u-boot 2024.10
@@ -48,6 +54,9 @@ BSP_BOOTLOADER_VERSION:bsp-ti-6_12 = "2024.10%"
  # in 6.12 yet
  MACHINE_FEATURES:remove:bsp-ti-6_12 = "gpu"

+# GC320 support requires out-of-tree drivers not yet available in 6.12

+MACHINE_FEATURES:remove:bsp-ti-6_12 = "gc320"
+
  # ==========
  # ti-6_6
  # TI staging kernel 6.6, u-boot 2024.04
@@ -65,6 +74,9 @@ BSP_ROGUE_DRIVER_VERSION:bsp-ti-6_6 = "24%"
  BSP_ROGUE_UMLIBS_VERSION:bsp-ti-6_6 = "24%"
  BSP_MESA_PVR_VERSION:bsp-ti-6_6 = "23%"

+# GC320 support requires out-of-tree drivers not yet available in 6.6

+MACHINE_FEATURES:remove:bsp-ti-6_6 = "gc320"
+
  # ==========
  # ti-6_1
  # TI staging kernel 6.1, u-boot 2023.04
@@ -82,6 +94,9 @@ BSP_ROGUE_DRIVER_VERSION:bsp-ti-6_1 = "23%"
  BSP_ROGUE_UMLIBS_VERSION:bsp-ti-6_1 = "23%"
  BSP_MESA_PVR_VERSION:bsp-ti-6_1 = "22%"

+# GC320 support requires out-of-tree drivers not yet available in 6.1

+MACHINE_FEATURES:remove:bsp-ti-6_1 = "gc320"
+
  # ==========
  # bb_org
  # BeagleBoard.org kernel 6.1, u-boot 2023.04
@@ -101,6 +116,9 @@ BSP_ROGUE_DRIVER_VERSION:bsp-bb_org = "23%"
  BSP_ROGUE_UMLIBS_VERSION:bsp-bb_org = "23%"
  BSP_MESA_PVR_VERSION:bsp-bb_org = "22%"

+# GC320 support requires out-of-tree drivers not yet available in bb.org

+MACHINE_FEATURES:remove:bsp-bb_org = "gc320"
+
  # ==========
  # sane fallback defaults
  # if specific values are not defined or bsp is set incorrectly
--
2.39.2

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