| // SPDX-License-Identifier: GPL-2.0 |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <asm/mach/arch.h> |
| |
| #include "vexpress.h" |
| |
| #define SYS_FLAGSSET 0x030 |
| #define SYS_FLAGSCLR 0x034 |
| |
| void vexpress_flags_set(u32 data) |
| { |
| static void __iomem *base; |
| |
| if (!base) { |
| struct device_node *node = of_find_compatible_node(NULL, NULL, |
| "arm,vexpress-sysreg"); |
| |
| base = of_iomap(node, 0); |
| } |
| |
| if (WARN_ON(!base)) |
| return; |
| |
| writel(~0, base + SYS_FLAGSCLR); |
| writel(data, base + SYS_FLAGSSET); |
| } |
| |
| static const char * const v2m_dt_match[] __initconst = { |
| "arm,vexpress", |
| NULL, |
| }; |
| |
| DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") |
| .dt_compat = v2m_dt_match, |
| .l2c_aux_val = 0x00400000, |
| .l2c_aux_mask = 0xfe0fffff, |
| .smp = smp_ops(vexpress_smp_dt_ops), |
| .smp_init = smp_init_ops(vexpress_smp_init_ops), |
| MACHINE_END |
