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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm/mach-artpec | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-artpec')
| -rw-r--r-- | arch/arm/mach-artpec/Kconfig | 22 | ||||
| -rw-r--r-- | arch/arm/mach-artpec/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-artpec/board-artpec6.c | 66 |
3 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/mach-artpec/Kconfig b/arch/arm/mach-artpec/Kconfig new file mode 100644 index 0000000000..b9a6452d6e --- /dev/null +++ b/arch/arm/mach-artpec/Kconfig @@ -0,0 +1,22 @@ +# SPDX-License-Identifier: GPL-2.0-only +menuconfig ARCH_ARTPEC + bool "Axis Communications ARM based ARTPEC SoCs" + depends on ARCH_MULTI_V7 + +if ARCH_ARTPEC + +config MACH_ARTPEC6 + bool "Axis ARTPEC-6 ARM Cortex A9 Platform" + depends on ARCH_MULTI_V7 + select ARM_AMBA + select ARM_GIC + select ARM_GLOBAL_TIMER + select ARM_PSCI + select HAVE_ARM_ARCH_TIMER + select HAVE_ARM_SCU + select HAVE_ARM_TWD if SMP + select MFD_SYSCON + help + Support for Axis ARTPEC-6 ARM Cortex A9 Platform + +endif diff --git a/arch/arm/mach-artpec/Makefile b/arch/arm/mach-artpec/Makefile new file mode 100644 index 0000000000..fac519012e --- /dev/null +++ b/arch/arm/mach-artpec/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_MACH_ARTPEC6) := board-artpec6.o diff --git a/arch/arm/mach-artpec/board-artpec6.c b/arch/arm/mach-artpec/board-artpec6.c new file mode 100644 index 0000000000..d3cf3e8603 --- /dev/null +++ b/arch/arm/mach-artpec/board-artpec6.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ARTPEC-6 device support. + */ + +#include <linux/amba/bus.h> +#include <linux/clocksource.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/irqchip.h> +#include <linux/irqchip/arm-gic.h> +#include <linux/mfd/syscon.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/clk-provider.h> +#include <linux/regmap.h> +#include <linux/smp.h> +#include <asm/smp_scu.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/psci.h> +#include <linux/arm-smccc.h> + + +#define ARTPEC6_DMACFG_REGNUM 0x10 +#define ARTPEC6_DMACFG_UARTS_BURST 0xff + +#define SECURE_OP_L2C_WRITEREG 0xb4000001 + +static void __init artpec6_init_machine(void) +{ + struct regmap *regmap; + + regmap = syscon_regmap_lookup_by_compatible("axis,artpec6-syscon"); + + if (!IS_ERR(regmap)) { + /* Use PL011 DMA Burst Request signal instead of DMA + * Single Request + */ + regmap_write(regmap, ARTPEC6_DMACFG_REGNUM, + ARTPEC6_DMACFG_UARTS_BURST); + }; +} + +static void artpec6_l2c310_write_sec(unsigned long val, unsigned reg) +{ + struct arm_smccc_res res; + + arm_smccc_smc(SECURE_OP_L2C_WRITEREG, reg, val, 0, + 0, 0, 0, 0, &res); + + WARN_ON(res.a0); +} + +static const char * const artpec6_dt_match[] = { + "axis,artpec6", + NULL +}; + +DT_MACHINE_START(ARTPEC6, "Axis ARTPEC-6 Platform") + .l2c_aux_val = 0x0C000000, + .l2c_aux_mask = 0xF3FFFFFF, + .l2c_write_sec = artpec6_l2c310_write_sec, + .init_machine = artpec6_init_machine, + .dt_compat = artpec6_dt_match, +MACHINE_END |