Commit Graph

16 Commits

Author SHA1 Message Date
Patrick Rudolph
6554cb460b arm: gic-v3: Scan for subnodes
According to the binding [1] the ITS node should be a subnode of the
GICv3 node. Since the ITS node has it's own driver, manually probe for
possible subnodes after binding since dm_scan_fdt() is not recursive.

1: https://www.kernel.org/doc/Documentation/devicetree/bindings/interrupt-controller/arm%2Cgic-v3.txt

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
2025-04-08 16:23:27 -06:00
Patrick Rudolph
142f92bf04 drivers/arm: Implement acpi_fill_madt
Fill the MADT table in the GIC driver and armv8 CPU driver to
drop SoC specific code. While the GIC only needs devicetree
data, the CPU driver needs additional information stored in
the cpu_plat struct.

While on it update the only board making use of the existing
drivers and writing ACPI MADT in mainboard code.

TEST: Booted on QEMU sbsa-ref using GICV3 driver model generated MADT.
      Booted on QEMU raspb4 using GICV2 driver model generated MADT.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
2024-10-27 17:24:13 -06:00
Patrick Rudolph
11a86874c0 arm: gic-v3-its: Implement of_xlate
Translate IRQs by implementing of_xlate() as required by
irq_get_by_index() to parse interrupt properties.

Map DT interrupts to ARM GIC interrupts as follows:

- Interrupt numbers ID32-ID1019 are used for SPIs
- ID0-ID15 are used for SGIs
- ID16-ID31 are used for PPIs

TEST: Booted on qemu sbsa-ref that has a GICV3.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Moritz Fischer <moritzf@google.com>
2024-10-27 17:24:13 -06:00
Patrick Rudolph
581e0cac2d arm: gic-v3-its: Rename objects
The code accesses the gic-v3 node, but not the gic-v3-its node,
thus rename the objects to clarify which node it operates on.

The following commit will make use of the gic-v3-its node for real.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2024-10-27 17:24:13 -06:00
Tom Rini
03de305ec4 Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-20 13:35:03 -06:00
Tom Rini
d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00
Tom Rini
7410cde67d arm: Remove <common.h> and add needed includes
Remove <common.h> from the remainder of the files under arch/arm and
when needed add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-06 15:06:34 -06:00
Simon Glass
1e94b46f73 common: Drop linux/printk.h from common header
This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-09-24 09:54:57 -04:00
Michael Walle
60b9b47d29 Revert "arch: arm: use dt and UCLASS_SYSCON to get gic lpi details"
Stop using the device tree as a source for ad-hoc information.

This reverts commit 2ae7adc659.

Signed-off-by: Michael Walle <michael@walle.cc>
[trini: Also make board/broadcom/bcmns3/ns3.c fail clearly now]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-10-31 08:46:29 -04:00
Hou Zhiqiang
6f6876a0c0 arm64: gic-v3-its: Clear the Pending table before enabling LPIs
The GICv3 RM requires "The first 1KB of memory for the LPI Pending tables
must contain only zeros on initial allocation, and this must be visible
to the Redistributors, or else the effect is UNPREDICTABLE".

And as the following statement, we here clear the whole Pending tables
instead of the first 1KB.
"An LPI Pending table that contains only zeros, including in the first 1KB,
indicates that there are no pending LPIs.
The first 1KB of the LPI Pending table is IMPLEMENTATION DEFINED. However,
if the first 1KB of the LPI Pending table and the rest of the table contain
only zeros, this must indicate that there are no pending LPIs."

And there isn't any pending LPI under U-Boot, so it's unnecessary to
load the contents of the Pending table during the enablement, then set
the GICR_PENDBASER.PTZ flag.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com> # NXP LS1028A
Reviewed-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-04-20 07:31:12 -04:00
Simon Glass
65e25bea59 dm: Rename DM_GET_DRIVER() to DM_DRIVER_GET()
In the spirit of using the same base name for all of these related macros,
rename this to have the operation at the end. This is not widely used so
the impact is fairly small.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05 12:26:35 -07:00
Rayagonda Kokatanur
2ae7adc659 arch: arm: use dt and UCLASS_SYSCON to get gic lpi details
Use device tree and UCLASS_SYSCON driver to get
Generic Interrupt Controller (GIC) lpi address and
maximum GIC redistributors count.

Also update Kconfig to select REGMAP and SYSCON when
GIC_V3_ITS is enabled.

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-29 10:37:11 -04:00
Rayagonda Kokatanur
a76bfe5693 arch: arm: use dt and UCLASS_IRQ to get gic details
Use device tree and UCLASS_IRQ driver to get following
Generic Interrupt Controller (GIC) details,

-GIC Distributor interface (GICD) base address and
-GIC Redistributors (GICR) base address.

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-29 10:37:11 -04:00
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Wasim Khan
f381a26cb5 arch: arm: Fix SZ_64K undeclared compilation error
Macro SZ_64K is undeclared. Include sizes.h to fix the compilation
error.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-02-25 11:39:54 -05:00
Bharat Kumar Reddy Gooty
0bc4356dea arch: arm: Program GIC LPI configuration table
Programs the following:
1. Redistributor PROCBASER configuration table (which
is common for all redistributors)
2. Redistributor pending table (PENDBASER), for all the
available redistributors.

Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
2020-01-10 14:18:26 -05:00