diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-realtek/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm/mach-realtek/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-realtek/rtd1195.c | 40 |
6 files changed, 59 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index e64e5db31497..3ec2757c78fb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2270,6 +2270,7 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) L: linux-realtek-soc@lists.infradead.org (moderated for non-subscribers) S: Maintained F: Documentation/devicetree/bindings/arm/realtek.yaml +F: arch/arm/mach-realtek/ F: arch/arm64/boot/dts/realtek/ ARM/RENESAS ARM64 ARCHITECTURE diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 66a04f6f4775..cbd6629e7d75 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -698,6 +698,8 @@ source "arch/arm/mach-qcom/Kconfig" source "arch/arm/mach-rda/Kconfig" +source "arch/arm/mach-realtek/Kconfig" + source "arch/arm/mach-realview/Kconfig" source "arch/arm/mach-rockchip/Kconfig" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 7d5cd0f85461..0fb6de83dd50 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -148,6 +148,8 @@ head-y := arch/arm/kernel/head$(MMUEXT).o textofs-y := 0x00008000 # We don't want the htc bootloader to corrupt kernel during resume textofs-$(CONFIG_PM_H1940) := 0x00108000 +# RTD1195 has Boot ROM at start of address space +textofs-$(CONFIG_ARCH_REALTEK) := 0x00108000 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory ifeq ($(CONFIG_ARCH_SA1100),y) textofs-$(CONFIG_SA1111) := 0x00208000 @@ -208,6 +210,7 @@ machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell machine-$(CONFIG_ARCH_PXA) += pxa machine-$(CONFIG_ARCH_QCOM) += qcom machine-$(CONFIG_ARCH_RDA) += rda +machine-$(CONFIG_ARCH_REALTEK) += realtek machine-$(CONFIG_ARCH_REALVIEW) += realview machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip machine-$(CONFIG_ARCH_RPC) += rpc diff --git a/arch/arm/mach-realtek/Kconfig b/arch/arm/mach-realtek/Kconfig new file mode 100644 index 000000000000..19fdcf093fd1 --- /dev/null +++ b/arch/arm/mach-realtek/Kconfig @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +menuconfig ARCH_REALTEK + bool "Realtek SoCs" + depends on ARCH_MULTI_V7 + select ARM_GIC + select ARM_GLOBAL_TIMER + select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK + select GENERIC_IRQ_CHIP + select RESET_CONTROLLER + help + This enables support for the Realtek RTD1195 SoC family. diff --git a/arch/arm/mach-realtek/Makefile b/arch/arm/mach-realtek/Makefile new file mode 100644 index 000000000000..5382d5bbdd3c --- /dev/null +++ b/arch/arm/mach-realtek/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +obj-y += rtd1195.o diff --git a/arch/arm/mach-realtek/rtd1195.c b/arch/arm/mach-realtek/rtd1195.c new file mode 100644 index 000000000000..0381a4447384 --- /dev/null +++ b/arch/arm/mach-realtek/rtd1195.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Realtek RTD1195 + * + * Copyright (c) 2017-2019 Andreas Färber + */ + +#include <linux/memblock.h> +#include <asm/mach/arch.h> + +static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size) +{ + int ret; + + ret = memblock_remove(base, size); + if (ret) + pr_err("Failed to remove memblock %pa (%d)\n", &base, ret); +} + +static void __init rtd1195_reserve(void) +{ + /* Exclude boot ROM from RAM */ + rtd1195_memblock_remove(0x00000000, 0x0000a800); + + /* Exclude peripheral register spaces from RAM */ + rtd1195_memblock_remove(0x18000000, 0x00070000); + rtd1195_memblock_remove(0x18100000, 0x01000000); +} + +static const char *const rtd1195_dt_compat[] __initconst = { + "realtek,rtd1195", + NULL +}; + +DT_MACHINE_START(rtd1195, "Realtek RTD1195") + .dt_compat = rtd1195_dt_compat, + .reserve = rtd1195_reserve, + .l2c_aux_val = 0x0, + .l2c_aux_mask = ~0x0, +MACHINE_END |