162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci#include <linux/of.h> 362306a36Sopenharmony_ci#include <linux/of_address.h> 462306a36Sopenharmony_ci#include <asm/mach/arch.h> 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include "vexpress.h" 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#define SYS_FLAGSSET 0x030 962306a36Sopenharmony_ci#define SYS_FLAGSCLR 0x034 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_civoid vexpress_flags_set(u32 data) 1262306a36Sopenharmony_ci{ 1362306a36Sopenharmony_ci static void __iomem *base; 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci if (!base) { 1662306a36Sopenharmony_ci struct device_node *node = of_find_compatible_node(NULL, NULL, 1762306a36Sopenharmony_ci "arm,vexpress-sysreg"); 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci base = of_iomap(node, 0); 2062306a36Sopenharmony_ci } 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci if (WARN_ON(!base)) 2362306a36Sopenharmony_ci return; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci writel(~0, base + SYS_FLAGSCLR); 2662306a36Sopenharmony_ci writel(data, base + SYS_FLAGSSET); 2762306a36Sopenharmony_ci} 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_cistatic const char * const v2m_dt_match[] __initconst = { 3062306a36Sopenharmony_ci "arm,vexpress", 3162306a36Sopenharmony_ci NULL, 3262306a36Sopenharmony_ci}; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciDT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") 3562306a36Sopenharmony_ci .dt_compat = v2m_dt_match, 3662306a36Sopenharmony_ci .l2c_aux_val = 0x00400000, 3762306a36Sopenharmony_ci .l2c_aux_mask = 0xfe0fffff, 3862306a36Sopenharmony_ci .smp = smp_ops(vexpress_smp_dt_ops), 3962306a36Sopenharmony_ci .smp_init = smp_init_ops(vexpress_smp_init_ops), 4062306a36Sopenharmony_ciMACHINE_END 41