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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-nspire | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-nspire')
| -rw-r--r-- | arch/arm/mach-nspire/Kconfig | 13 | ||||
| -rw-r--r-- | arch/arm/mach-nspire/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-nspire/mmio.h | 16 | ||||
| -rw-r--r-- | arch/arm/mach-nspire/nspire.c | 42 |
4 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/mach-nspire/Kconfig b/arch/arm/mach-nspire/Kconfig new file mode 100644 index 000000000..b7a387187 --- /dev/null +++ b/arch/arm/mach-nspire/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only +config ARCH_NSPIRE + bool "TI-NSPIRE based" + depends on ARCH_MULTI_V4T + depends on CPU_LITTLE_ENDIAN + select CPU_ARM926T + select GENERIC_IRQ_CHIP + select ARM_AMBA + select ARM_VIC + select ARM_TIMER_SP804 + select NSPIRE_TIMER + help + This enables support for systems using the TI-NSPIRE CPU diff --git a/arch/arm/mach-nspire/Makefile b/arch/arm/mach-nspire/Makefile new file mode 100644 index 000000000..4716b9b9a --- /dev/null +++ b/arch/arm/mach-nspire/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-y += nspire.o diff --git a/arch/arm/mach-nspire/mmio.h b/arch/arm/mach-nspire/mmio.h new file mode 100644 index 000000000..48e32f13f --- /dev/null +++ b/arch/arm/mach-nspire/mmio.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/arch/arm/mach-nspire/mmio.h + * + * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au> + */ + +#define NSPIRE_MISC_PHYS_BASE 0x900A0000 +#define NSPIRE_MISC_HWRESET 0x08 + +#define NSPIRE_PWR_PHYS_BASE 0x900B0000 +#define NSPIRE_PWR_VIRT_BASE 0xFEEB0000 +#define NSPIRE_PWR_BUS_DISABLE1 0x18 +#define NSPIRE_PWR_BUS_DISABLE2 0x20 + +#define NSPIRE_LCD_PHYS_BASE 0xC0000000 diff --git a/arch/arm/mach-nspire/nspire.c b/arch/arm/mach-nspire/nspire.c new file mode 100644 index 000000000..2d4abb028 --- /dev/null +++ b/arch/arm/mach-nspire/nspire.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-nspire/nspire.c + * + * Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au> + */ +#include <linux/init.h> +#include <linux/of_irq.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/irqchip.h> +#include <linux/irqchip/arm-vic.h> +#include <linux/clkdev.h> +#include <linux/amba/bus.h> + +#include <asm/mach/arch.h> +#include <asm/mach-types.h> +#include <asm/mach/map.h> + +#include "mmio.h" + +static const char *const nspire_dt_match[] __initconst = { + "ti,nspire", + "ti,nspire-cx", + "ti,nspire-tp", + "ti,nspire-clp", + NULL, +}; + +static void nspire_restart(enum reboot_mode mode, const char *cmd) +{ + void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K); + if (!base) + return; + + writel(2, base + NSPIRE_MISC_HWRESET); +} + +DT_MACHINE_START(NSPIRE, "TI-NSPIRE") + .dt_compat = nspire_dt_match, + .restart = nspire_restart, +MACHINE_END |