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ARM: mach-hpe: Rework support and directory structure 

Having a platform need a mach-* directory should be seen as a negative,
it means the platform needs special non-standard handling. ARM64 support
does not allow mach-* directories at all. While we may not get to that
given all the non-standard architectures we support, we should still try
to get as close as we can and reduce the number of mach directories.

The mach-hpe/ directory and files, provides just one "feature":
having the kernel print the machine name if the DTB does not also contain
a "model" string (which they always do). To reduce the number of mach-*
directories let's do without that feature and remove this directory.

Note, we drop the l2c_aux_mask = ~0 line, but this is safe as
the fallback GENERIC_DT machine has that as the default.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20250813170308.290349-1-afd@ti.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Andrew Davis 2025-08-13 12:03:08 -05:00 committed by Arnd Bergmann
parent 1141f2fa20
commit 9685b29759
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GPG Key ID: 9A6C79EFE60018D9
7 changed files with 25 additions and 43 deletions
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1
MAINTAINERS
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@ -2728,7 +2728,6 @@ F: Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
F: Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
F: Documentation/hwmon/gxp-fan-ctrl.rst
F: arch/arm/boot/dts/hpe/
F: arch/arm/mach-hpe/
F: drivers/clocksource/timer-gxp.c
F: drivers/hwmon/gxp-fan-ctrl.c
F: drivers/i2c/busses/i2c-gxp.c

2
arch/arm/Kconfig
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@ -393,8 +393,6 @@ source "arch/arm/mach-highbank/Kconfig"
source "arch/arm/mach-hisi/Kconfig"
source "arch/arm/mach-hpe/Kconfig"
source "arch/arm/mach-imx/Kconfig"
source "arch/arm/mach-ixp4xx/Kconfig"

25
arch/arm/Kconfig.platforms
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@ -87,6 +87,31 @@ config MACH_ASM9260
help
Support for Alphascale ASM9260 based platform.
menuconfig ARCH_HPE
bool "HPE SoC support"
depends on ARCH_MULTI_V7
help
This enables support for HPE ARM based BMC chips.
if ARCH_HPE
config ARCH_HPE_GXP
bool "HPE GXP SoC"
depends on ARCH_MULTI_V7
select ARM_VIC
select GENERIC_IRQ_CHIP
select CLKSRC_MMIO
help
HPE GXP is the name of the HPE Soc. This SoC is used to implement many
BMC features at HPE. It supports ARMv7 architecture based on the Cortex
A9 core. It is capable of using an AXI bus to which a memory controller
is attached. It has multiple SPI interfaces to connect boot flash and
BIOS flash. It uses a 10/100/1000 MAC for network connectivity. It
has multiple i2c engines to drive connectivity with a host
infrastructure.
endif
menuconfig ARCH_MOXART
bool "MOXA ART SoC"
depends on ARCH_MULTI_V4

1
arch/arm/Makefile
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@ -189,7 +189,6 @@ machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge
machine-$(CONFIG_ARCH_GEMINI) += gemini
machine-$(CONFIG_ARCH_HIGHBANK) += highbank
machine-$(CONFIG_ARCH_HISI) += hisi
machine-$(CONFIG_ARCH_HPE) += hpe
machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
machine-$(CONFIG_ARCH_KEYSTONE) += keystone
machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx

23
arch/arm/mach-hpe/Kconfig
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@ -1,23 +0,0 @@
menuconfig ARCH_HPE
bool "HPE SoC support"
depends on ARCH_MULTI_V7
help
This enables support for HPE ARM based BMC chips.
if ARCH_HPE
config ARCH_HPE_GXP
bool "HPE GXP SoC"
depends on ARCH_MULTI_V7
select ARM_VIC
select GENERIC_IRQ_CHIP
select CLKSRC_MMIO
help
HPE GXP is the name of the HPE Soc. This SoC is used to implement many
BMC features at HPE. It supports ARMv7 architecture based on the Cortex
A9 core. It is capable of using an AXI bus to which a memory controller
is attached. It has multiple SPI interfaces to connect boot flash and
BIOS flash. It uses a 10/100/1000 MAC for network connectivity. It
has multiple i2c engines to drive connectivity with a host
infrastructure.
endif

1
arch/arm/mach-hpe/Makefile
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@ -1 +0,0 @@
obj-$(CONFIG_ARCH_HPE_GXP) += gxp.o

15
arch/arm/mach-hpe/gxp.c
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@ -1,15 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2022 Hewlett-Packard Enterprise Development Company, L.P. */
#include <asm/mach/arch.h>
static const char * const gxp_board_dt_compat[] = {
"hpe,gxp",
NULL,
};
DT_MACHINE_START(GXP_DT, "HPE GXP")
.dt_compat = gxp_board_dt_compat,
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
MACHINE_END