From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/arm/mach-clps711x/Kconfig | 12 ++++++ arch/arm/mach-clps711x/Makefile | 2 + arch/arm/mach-clps711x/board-dt.c | 78 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 arch/arm/mach-clps711x/Kconfig create mode 100644 arch/arm/mach-clps711x/Makefile create mode 100644 arch/arm/mach-clps711x/board-dt.c (limited to 'arch/arm/mach-clps711x') diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig new file mode 100644 index 0000000000..fd32e576ec --- /dev/null +++ b/arch/arm/mach-clps711x/Kconfig @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +menuconfig ARCH_CLPS711X + bool "Cirrus Logic EP721x/EP731x-based" + depends on ARCH_MULTI_V4T + depends on CPU_LITTLE_ENDIAN + select CLPS711X_TIMER + select CPU_ARM720T + select GPIOLIB + select MFD_SYSCON + select OF_IRQ + help + Select this if you use ARMv4T Cirrus Logic chips. diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile new file mode 100644 index 0000000000..f18f330f53 --- /dev/null +++ b/arch/arm/mach-clps711x/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += board-dt.o diff --git a/arch/arm/mach-clps711x/board-dt.c b/arch/arm/mach-clps711x/board-dt.c new file mode 100644 index 0000000000..0b22a12e71 --- /dev/null +++ b/arch/arm/mach-clps711x/board-dt.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Author: Alexander Shiyan , 2016 + */ + +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include + +#define CLPS711X_VIRT_BASE IOMEM(0xfeff4000) +#define CLPS711X_PHYS_BASE (0x80000000) +# define SYSFLG1 (0x0140) +# define HALT (0x0800) +# define UNIQID (0x2440) +# define RANDID0 (0x2700) +# define RANDID1 (0x2704) +# define RANDID2 (0x2708) +# define RANDID3 (0x270c) + +static struct map_desc clps711x_io_desc __initdata = { + .virtual = (unsigned long)CLPS711X_VIRT_BASE, + .pfn = __phys_to_pfn(CLPS711X_PHYS_BASE), + .length = 48 * SZ_1K, + .type = MT_DEVICE, +}; + +static void __init clps711x_map_io(void) +{ + iotable_init(&clps711x_io_desc, 1); +} + +static const struct resource clps711x_cpuidle_res = + DEFINE_RES_MEM(CLPS711X_PHYS_BASE + HALT, SZ_128); + +static void __init clps711x_init(void) +{ + u32 id[5]; + + id[0] = readl(CLPS711X_VIRT_BASE + UNIQID); + id[1] = readl(CLPS711X_VIRT_BASE + RANDID0); + id[2] = readl(CLPS711X_VIRT_BASE + RANDID1); + id[3] = readl(CLPS711X_VIRT_BASE + RANDID2); + id[4] = readl(CLPS711X_VIRT_BASE + RANDID3); + system_rev = SYSFLG1_VERID(readl(CLPS711X_VIRT_BASE + SYSFLG1)); + + add_device_randomness(id, sizeof(id)); + + system_serial_low = id[0]; + + platform_device_register_simple("clps711x-cpuidle", PLATFORM_DEVID_NONE, + &clps711x_cpuidle_res, 1); +} + +static void clps711x_restart(enum reboot_mode mode, const char *cmd) +{ + soft_restart(0); +} + +static const char *const clps711x_compat[] __initconst = { + "cirrus,ep7209", + NULL +}; + +DT_MACHINE_START(CLPS711X_DT, "Cirrus Logic CLPS711X (Device Tree Support)") + .dt_compat = clps711x_compat, + .map_io = clps711x_map_io, + .init_late = clps711x_init, + .restart = clps711x_restart, +MACHINE_END -- cgit v1.2.3