obj-y += cpu.o
obj-y += lowlevel.o
obj-y += speed.o
+obj-$(CONFIG_MP) += mp.o
+obj-$(CONFIG_OF_LIBFDT) += fdt.o
#include <asm/io.h>
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
#include "cpu.h"
+#include "mp.h"
#include "speed.h"
#include <fsl_mc.h>
#endif
return error;
}
+
+
+int arch_early_init_r(void)
+{
+ int rv;
+ rv = fsl_lsch3_wake_seconday_cores();
+
+ if (rv)
+ printf("Did not wake secondary cores\n");
+
+ return 0;
+}
*/
int fsl_qoriq_core_to_cluster(unsigned int core);
+u32 cpu_mask(void);
--- /dev/null
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include "mp.h"
+
+#ifdef CONFIG_MP
+void ft_fixup_cpu(void *blob)
+{
+ int off;
+ __maybe_unused u64 spin_tbl_addr = (u64)get_spin_tbl_addr();
+ fdt32_t *reg;
+ int addr_cells;
+ u64 val;
+ size_t *boot_code_size = &(__secondary_boot_code_size);
+
+ off = fdt_path_offset(blob, "/cpus");
+ if (off < 0) {
+ puts("couldn't find /cpus node\n");
+ return;
+ }
+ of_bus_default_count_cells(blob, off, &addr_cells, NULL);
+
+ off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
+ while (off != -FDT_ERR_NOTFOUND) {
+ reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
+ if (reg) {
+ val = spin_tbl_addr;
+ val += id_to_core(of_read_number(reg, addr_cells))
+ * SPIN_TABLE_ELEM_SIZE;
+ val = cpu_to_fdt64(val);
+ fdt_setprop_string(blob, off, "enable-method",
+ "spin-table");
+ fdt_setprop(blob, off, "cpu-release-addr",
+ &val, sizeof(val));
+ } else {
+ puts("Warning: found cpu node without reg property\n");
+ }
+ off = fdt_node_offset_by_prop_value(blob, off, "device_type",
+ "cpu", 4);
+ }
+
+ fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
+ *boot_code_size);
+}
+#endif
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+#ifdef CONFIG_MP
+ ft_fixup_cpu(blob);
+#endif
+}
#include <config.h>
#include <linux/linkage.h>
+#include <asm/gic.h>
#include <asm/macro.h>
+#include "mp.h"
ENTRY(lowlevel_init)
mov x29, lr /* Save LR */
#endif
#endif
- branch_if_master x0, x1, 1f
+ branch_if_master x0, x1, 2f
+ ldr x0, =secondary_boot_func
+ blr x0
+2:
+ mov lr, x29 /* Restore LR */
+ ret
+ENDPROC(lowlevel_init)
+
+ /* Keep literals not used by the secondary boot code outside it */
+ .ltorg
+
+ /* Using 64 bit alignment since the spin table is accessed as data */
+ .align 4
+ .global secondary_boot_code
+ /* Secondary Boot Code starts here */
+secondary_boot_code:
+ .global __spin_table
+__spin_table:
+ .space CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE
+
+ .align 2
+ENTRY(secondary_boot_func)
/*
- * Slave should wait for master clearing spin table.
- * This sync prevent salves observing incorrect
- * value of spin table and jumping to wrong place.
+ * MPIDR_EL1 Fields:
+ * MPIDR[1:0] = AFF0_CPUID <- Core ID (0,1)
+ * MPIDR[7:2] = AFF0_RES
+ * MPIDR[15:8] = AFF1_CLUSTERID <- Cluster ID (0,1,2,3)
+ * MPIDR[23:16] = AFF2_CLUSTERID
+ * MPIDR[24] = MT
+ * MPIDR[29:25] = RES0
+ * MPIDR[30] = U
+ * MPIDR[31] = ME
+ * MPIDR[39:32] = AFF3
+ *
+ * Linear Processor ID (LPID) calculation from MPIDR_EL1:
+ * (We only use AFF0_CPUID and AFF1_CLUSTERID for now
+ * until AFF2_CLUSTERID and AFF3 have non-zero values)
+ *
+ * LPID = MPIDR[15:8] | MPIDR[1:0]
*/
-#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
-#ifdef CONFIG_GICV2
- ldr x0, =GICC_BASE
-#endif
- bl gic_wait_for_interrupt
-#endif
-
+ mrs x0, mpidr_el1
+ ubfm x1, x0, #8, #15
+ ubfm x2, x0, #0, #1
+ orr x10, x2, x1, lsl #2 /* x10 has LPID */
+ ubfm x9, x0, #0, #15 /* x9 contains MPIDR[15:0] */
/*
- * All processors will enter EL2 and optionally EL1.
+ * offset of the spin table element for this core from start of spin
+ * table (each elem is padded to 64 bytes)
*/
- bl armv8_switch_to_el2
+ lsl x1, x10, #6
+ ldr x0, =__spin_table
+ /* physical address of this cpus spin table element */
+ add x11, x1, x0
+
+ str x9, [x11, #16] /* LPID */
+ mov x4, #1
+ str x4, [x11, #8] /* STATUS */
+ dsb sy
+#if defined(CONFIG_GICV3)
+ gic_wait_for_interrupt_m x0
+#elif defined(CONFIG_GICV2)
+ ldr x0, =GICC_BASE
+ gic_wait_for_interrupt_m x0, w1
+#endif
+
+ bl secondary_switch_to_el2
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- bl armv8_switch_to_el1
+ bl secondary_switch_to_el1
#endif
- b 2f
-1:
-2:
- mov lr, x29 /* Restore LR */
- ret
-ENDPROC(lowlevel_init)
+slave_cpu:
+ wfe
+ ldr x0, [x11]
+ cbz x0, slave_cpu
+#ifndef CONFIG_ARMV8_SWITCH_TO_EL1
+ mrs x1, sctlr_el2
+#else
+ mrs x1, sctlr_el1
+#endif
+ tbz x1, #25, cpu_is_le
+ rev x0, x0 /* BE to LE conversion */
+cpu_is_le:
+ br x0 /* branch to the given address */
+ENDPROC(secondary_boot_func)
+
+ENTRY(secondary_switch_to_el2)
+ switch_el x0, 1f, 0f, 0f
+0: ret
+1: armv8_switch_to_el2_m x0
+ENDPROC(secondary_switch_to_el2)
+
+ENTRY(secondary_switch_to_el1)
+ switch_el x0, 0f, 1f, 0f
+0: ret
+1: armv8_switch_to_el1_m x0, x1
+ENDPROC(secondary_switch_to_el1)
+
+ /* Ensure that the literals used by the secondary boot code are
+ * assembled within it (this is required so that we can protect
+ * this area with a single memreserve region
+ */
+ .ltorg
+
+ /* 64 bit alignment for elements accessed as data */
+ .align 4
+ .globl __secondary_boot_code_size
+ .type __secondary_boot_code_size, %object
+ /* Secondary Boot Code ends here */
+__secondary_boot_code_size:
+ .quad .-secondary_boot_code
--- /dev/null
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/arch-fsl-lsch3/immap_lsch3.h>
+#include "mp.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void *get_spin_tbl_addr(void)
+{
+ return &__spin_table;
+}
+
+phys_addr_t determine_mp_bootpg(void)
+{
+ return (phys_addr_t)&secondary_boot_code;
+}
+
+int fsl_lsch3_wake_seconday_cores(void)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+ struct ccsr_reset __iomem *rst = (void *)(CONFIG_SYS_FSL_RST_ADDR);
+ u32 cores, cpu_up_mask = 1;
+ int i, timeout = 10;
+ u64 *table = get_spin_tbl_addr();
+
+ cores = cpu_mask();
+ /* Clear spin table so that secondary processors
+ * observe the correct value after waking up from wfe.
+ */
+ memset(table, 0, CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE);
+ flush_dcache_range((unsigned long)table,
+ (unsigned long)table +
+ (CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE));
+
+ printf("Waking secondary cores to start from %lx\n", gd->relocaddr);
+ out_le32(&gur->bootlocptrh, (u32)(gd->relocaddr >> 32));
+ out_le32(&gur->bootlocptrl, (u32)gd->relocaddr);
+ out_le32(&gur->scratchrw[6], 1);
+ asm volatile("dsb st" : : : "memory");
+ rst->brrl = cores;
+ asm volatile("dsb st" : : : "memory");
+
+ /* This is needed as a precautionary measure.
+ * If some code before this has accidentally released the secondary
+ * cores then the pre-bootloader code will trap them in a "wfe" unless
+ * the scratchrw[6] is set. In this case we need a sev here to get these
+ * cores moving again.
+ */
+ asm volatile("sev");
+
+ while (timeout--) {
+ flush_dcache_range((unsigned long)table, (unsigned long)table +
+ CONFIG_MAX_CPUS * 64);
+ for (i = 1; i < CONFIG_MAX_CPUS; i++) {
+ if (table[i * WORDS_PER_SPIN_TABLE_ENTRY +
+ SPIN_TABLE_ELEM_STATUS_IDX])
+ cpu_up_mask |= 1 << i;
+ }
+ if (hweight32(cpu_up_mask) == hweight32(cores))
+ break;
+ udelay(10);
+ }
+ if (timeout <= 0) {
+ printf("Not all cores (0x%x) are up (0x%x)\n",
+ cores, cpu_up_mask);
+ return 1;
+ }
+ printf("All (%d) cores are up.\n", hweight32(cores));
+
+ return 0;
+}
+
+int is_core_valid(unsigned int core)
+{
+ return !!((1 << core) & cpu_mask());
+}
+
+int cpu_reset(int nr)
+{
+ puts("Feature is not implemented.\n");
+
+ return 0;
+}
+
+int cpu_disable(int nr)
+{
+ puts("Feature is not implemented.\n");
+
+ return 0;
+}
+
+int core_to_pos(int nr)
+{
+ u32 cores = cpu_mask();
+ int i, count = 0;
+
+ if (nr == 0) {
+ return 0;
+ } else if (nr >= hweight32(cores)) {
+ puts("Not a valid core number.\n");
+ return -1;
+ }
+
+ for (i = 1; i < 32; i++) {
+ if (is_core_valid(i)) {
+ count++;
+ if (count == nr)
+ break;
+ }
+ }
+
+ return count;
+}
+
+int cpu_status(int nr)
+{
+ u64 *table;
+ int pos;
+
+ if (nr == 0) {
+ table = (u64 *)get_spin_tbl_addr();
+ printf("table base @ 0x%p\n", table);
+ } else {
+ pos = core_to_pos(nr);
+ if (pos < 0)
+ return -1;
+ table = (u64 *)get_spin_tbl_addr() + pos *
+ WORDS_PER_SPIN_TABLE_ENTRY;
+ printf("table @ 0x%p\n", table);
+ printf(" addr - 0x%016llx\n",
+ table[SPIN_TABLE_ELEM_ENTRY_ADDR_IDX]);
+ printf(" status - 0x%016llx\n",
+ table[SPIN_TABLE_ELEM_STATUS_IDX]);
+ printf(" lpid - 0x%016llx\n",
+ table[SPIN_TABLE_ELEM_LPID_IDX]);
+ }
+
+ return 0;
+}
+
+int cpu_release(int nr, int argc, char * const argv[])
+{
+ u64 boot_addr;
+ u64 *table = (u64 *)get_spin_tbl_addr();
+ int pos;
+
+ pos = core_to_pos(nr);
+ if (pos <= 0)
+ return -1;
+
+ table += pos * WORDS_PER_SPIN_TABLE_ENTRY;
+ boot_addr = simple_strtoull(argv[0], NULL, 16);
+ table[SPIN_TABLE_ELEM_ENTRY_ADDR_IDX] = boot_addr;
+ flush_dcache_range((unsigned long)table,
+ (unsigned long)table + SPIN_TABLE_ELEM_SIZE);
+ asm volatile("dsb st");
+ smp_kick_all_cpus(); /* only those with entry addr set will run */
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright 2014, Freescale Semiconductor
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _FSL_CH3_MP_H
+#define _FSL_CH3_MP_H
+
+/*
+* Each spin table element is defined as
+* struct {
+* uint64_t entry_addr;
+* uint64_t status;
+* uint64_t lpid;
+* };
+* we pad this struct to 64 bytes so each entry is in its own cacheline
+* the actual spin table is an array of these structures
+*/
+#define SPIN_TABLE_ELEM_ENTRY_ADDR_IDX 0
+#define SPIN_TABLE_ELEM_STATUS_IDX 1
+#define SPIN_TABLE_ELEM_LPID_IDX 2
+#define WORDS_PER_SPIN_TABLE_ENTRY 8 /* pad to 64 bytes */
+#define SPIN_TABLE_ELEM_SIZE 64
+
+#define id_to_core(x) ((x & 3) | (x >> 6))
+#ifndef __ASSEMBLY__
+extern u64 __spin_table[];
+extern u64 *secondary_boot_code;
+extern size_t __secondary_boot_code_size;
+int fsl_lsch3_wake_seconday_cores(void);
+void *get_spin_tbl_addr(void);
+phys_addr_t determine_mp_bootpg(void);
+void secondary_boot_func(void);
+#endif
+#endif /* _FSL_CH3_MP_H */
ENTRY(armv8_switch_to_el2)
switch_el x0, 1f, 0f, 0f
0: ret
-1:
- mov x0, #0x5b1 /* Non-secure EL0/EL1 | HVC | 64bit EL2 */
- msr scr_el3, x0
- msr cptr_el3, xzr /* Disable coprocessor traps to EL3 */
- mov x0, #0x33ff
- msr cptr_el2, x0 /* Disable coprocessor traps to EL2 */
-
- /* Initialize SCTLR_EL2 */
- msr sctlr_el2, xzr
-
- /* Return to the EL2_SP2 mode from EL3 */
- mov x0, sp
- msr sp_el2, x0 /* Migrate SP */
- mrs x0, vbar_el3
- msr vbar_el2, x0 /* Migrate VBAR */
- mov x0, #0x3c9
- msr spsr_el3, x0 /* EL2_SP2 | D | A | I | F */
- msr elr_el3, lr
- eret
+1: armv8_switch_to_el2_m x0
ENDPROC(armv8_switch_to_el2)
ENTRY(armv8_switch_to_el1)
switch_el x0, 0f, 1f, 0f
0: ret
-1:
- /* Initialize Generic Timers */
- mrs x0, cnthctl_el2
- orr x0, x0, #0x3 /* Enable EL1 access to timers */
- msr cnthctl_el2, x0
- msr cntvoff_el2, xzr
- mrs x0, cntkctl_el1
- orr x0, x0, #0x3 /* Enable EL0 access to timers */
- msr cntkctl_el1, x0
-
- /* Initilize MPID/MPIDR registers */
- mrs x0, midr_el1
- mrs x1, mpidr_el1
- msr vpidr_el2, x0
- msr vmpidr_el2, x1
-
- /* Disable coprocessor traps */
- mov x0, #0x33ff
- msr cptr_el2, x0 /* Disable coprocessor traps to EL2 */
- msr hstr_el2, xzr /* Disable coprocessor traps to EL2 */
- mov x0, #3 << 20
- msr cpacr_el1, x0 /* Enable FP/SIMD at EL1 */
-
- /* Initialize HCR_EL2 */
- mov x0, #(1 << 31) /* 64bit EL1 */
- orr x0, x0, #(1 << 29) /* Disable HVC */
- msr hcr_el2, x0
-
- /* SCTLR_EL1 initialization */
- mov x0, #0x0800
- movk x0, #0x30d0, lsl #16
- msr sctlr_el1, x0
-
- /* Return to the EL1_SP1 mode from EL2 */
- mov x0, sp
- msr sp_el1, x0 /* Migrate SP */
- mrs x0, vbar_el2
- msr vbar_el1, x0 /* Migrate VBAR */
- mov x0, #0x3c5
- msr spsr_el2, x0 /* EL1_SP1 | D | A | I | F */
- msr elr_el2, lr
- eret
+1: armv8_switch_to_el1_m x0, x1
ENDPROC(armv8_switch_to_el1)
#define _ASM_ARMV8_FSL_LSCH3_CONFIG_
#include <fsl_ddrc_version.h>
-
+#define CONFIG_MP
#define CONFIG_SYS_FSL_OCRAM_BASE 0x18000000 /* initial RAM */
/* Link Definitions */
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_FSL_OCRAM_BASE + 0xfff0)
#define CONFIG_SYS_FSL_DDR3_ADDR 0x08210000
#define CONFIG_SYS_FSL_GUTS_ADDR (CONFIG_SYS_IMMR + 0x00E00000)
#define CONFIG_SYS_FSL_PMU_ADDR (CONFIG_SYS_IMMR + 0x00E30000)
+#define CONFIG_SYS_FSL_RST_ADDR (CONFIG_SYS_IMMR + 0x00E60000)
#define CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR (CONFIG_SYS_IMMR + 0x00300000)
#define CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR (CONFIG_SYS_IMMR + 0x00310000)
#define CONFIG_SYS_FSL_CH3_CLK_CTRL_ADDR (CONFIG_SYS_IMMR + 0x00370000)
u8 res_04[0x20-0x04];
} clkcncsr[8];
};
+
+struct ccsr_reset {
+ u32 rstcr; /* 0x000 */
+ u32 rstcrsp; /* 0x004 */
+ u8 res_008[0x10-0x08]; /* 0x008 */
+ u32 rstrqmr1; /* 0x010 */
+ u32 rstrqmr2; /* 0x014 */
+ u32 rstrqsr1; /* 0x018 */
+ u32 rstrqsr2; /* 0x01c */
+ u32 rstrqwdtmrl; /* 0x020 */
+ u32 rstrqwdtmru; /* 0x024 */
+ u8 res_028[0x30-0x28]; /* 0x028 */
+ u32 rstrqwdtsrl; /* 0x030 */
+ u32 rstrqwdtsru; /* 0x034 */
+ u8 res_038[0x60-0x38]; /* 0x038 */
+ u32 brrl; /* 0x060 */
+ u32 brru; /* 0x064 */
+ u8 res_068[0x80-0x68]; /* 0x068 */
+ u32 pirset; /* 0x080 */
+ u32 pirclr; /* 0x084 */
+ u8 res_088[0x90-0x88]; /* 0x088 */
+ u32 brcorenbr; /* 0x090 */
+ u8 res_094[0x100-0x94]; /* 0x094 */
+ u32 rcw_reqr; /* 0x100 */
+ u32 rcw_completion; /* 0x104 */
+ u8 res_108[0x110-0x108]; /* 0x108 */
+ u32 pbi_reqr; /* 0x110 */
+ u32 pbi_completion; /* 0x114 */
+ u8 res_118[0xa00-0x118]; /* 0x118 */
+ u32 qmbm_warmrst; /* 0xa00 */
+ u32 soc_warmrst; /* 0xa04 */
+ u8 res_a08[0xbf8-0xa08]; /* 0xa08 */
+ u32 ip_rev1; /* 0xbf8 */
+ u32 ip_rev2; /* 0xbfc */
+};
#endif /* __ARCH_FSL_LSCH3_IMMAP_H */
cbz \xreg1, \master_label
.endm
+.macro armv8_switch_to_el2_m, xreg1
+ /* 64bit EL2 | HCE | SMD | RES1 (Bits[5:4]) | Non-secure EL0/EL1 */
+ mov \xreg1, #0x5b1
+ msr scr_el3, \xreg1
+ msr cptr_el3, xzr /* Disable coprocessor traps to EL3 */
+ mov \xreg1, #0x33ff
+ msr cptr_el2, \xreg1 /* Disable coprocessor traps to EL2 */
+
+ /* Initialize SCTLR_EL2
+ *
+ * setting RES1 bits (29,28,23,22,18,16,11,5,4) to 1
+ * and RES0 bits (31,30,27,26,24,21,20,17,15-13,10-6) +
+ * EE,WXN,I,SA,C,A,M to 0
+ */
+ mov \xreg1, #0x0830
+ movk \xreg1, #0x30C5, lsl #16
+ msr sctlr_el2, \xreg1
+
+ /* Return to the EL2_SP2 mode from EL3 */
+ mov \xreg1, sp
+ msr sp_el2, \xreg1 /* Migrate SP */
+ mrs \xreg1, vbar_el3
+ msr vbar_el2, \xreg1 /* Migrate VBAR */
+ mov \xreg1, #0x3c9
+ msr spsr_el3, \xreg1 /* EL2_SP2 | D | A | I | F */
+ msr elr_el3, lr
+ eret
+.endm
+
+.macro armv8_switch_to_el1_m, xreg1, xreg2
+ /* Initialize Generic Timers */
+ mrs \xreg1, cnthctl_el2
+ orr \xreg1, \xreg1, #0x3 /* Enable EL1 access to timers */
+ msr cnthctl_el2, \xreg1
+ msr cntvoff_el2, xzr
+
+ /* Initilize MPID/MPIDR registers */
+ mrs \xreg1, midr_el1
+ mrs \xreg2, mpidr_el1
+ msr vpidr_el2, \xreg1
+ msr vmpidr_el2, \xreg2
+
+ /* Disable coprocessor traps */
+ mov \xreg1, #0x33ff
+ msr cptr_el2, \xreg1 /* Disable coprocessor traps to EL2 */
+ msr hstr_el2, xzr /* Disable coprocessor traps to EL2 */
+ mov \xreg1, #3 << 20
+ msr cpacr_el1, \xreg1 /* Enable FP/SIMD at EL1 */
+
+ /* Initialize HCR_EL2 */
+ mov \xreg1, #(1 << 31) /* 64bit EL1 */
+ orr \xreg1, \xreg1, #(1 << 29) /* Disable HVC */
+ msr hcr_el2, \xreg1
+
+ /* SCTLR_EL1 initialization
+ *
+ * setting RES1 bits (29,28,23,22,20,11) to 1
+ * and RES0 bits (31,30,27,21,17,13,10,6) +
+ * UCI,EE,EOE,WXN,nTWE,nTWI,UCT,DZE,I,UMA,SED,ITD,
+ * CP15BEN,SA0,SA,C,A,M to 0
+ */
+ mov \xreg1, #0x0800
+ movk \xreg1, #0x30d0, lsl #16
+ msr sctlr_el1, \xreg1
+
+ /* Return to the EL1_SP1 mode from EL2 */
+ mov \xreg1, sp
+ msr sp_el1, \xreg1 /* Migrate SP */
+ mrs \xreg1, vbar_el2
+ msr vbar_el1, \xreg1 /* Migrate VBAR */
+ mov \xreg1, #0x3c5
+ msr spsr_el2, \xreg1 /* EL1_SP1 | D | A | I | F */
+ msr elr_el2, lr
+ eret
+.endm
+
+#if defined(CONFIG_GICV3)
+.macro gic_wait_for_interrupt_m xreg1
+0 : wfi
+ mrs \xreg1, ICC_IAR1_EL1
+ msr ICC_EOIR1_EL1, \xreg1
+ cbnz \xreg1, 0b
+.endm
+#elif defined(CONFIG_GICV2)
+.macro gic_wait_for_interrupt_m xreg1, wreg2
+0 : wfi
+ ldr \wreg2, [\xreg1, GICC_AIAR]
+ str \wreg2, [\xreg1, GICC_AEOIR]
+ and \wreg2, \wreg2, #3ff
+ cbnz \wreg2, 0b
+.endm
+#endif
+
#endif /* CONFIG_ARM64 */
#endif /* __ASSEMBLY__ */
#include <asm-offsets.h>
#include <config.h>
#include <linux/linkage.h>
-#include <asm/macro.h>
#include <asm/gic.h>
+#include <asm/macro.h>
/*************************************************************************
*
*************************************************************************/
ENTRY(gic_wait_for_interrupt)
-0: wfi
#if defined(CONFIG_GICV3)
- mrs x9, ICC_IAR1_EL1
- msr ICC_EOIR1_EL1, x9
+ gic_wait_for_interrupt_m x9
#elif defined(CONFIG_GICV2)
- ldr w9, [x0, GICC_AIAR]
- str w9, [x0, GICC_AEOIR]
+ gic_wait_for_interrupt_m x0, w9
#endif
- cbnz w9, 0b
ret
ENDPROC(gic_wait_for_interrupt)
projects / platform / kernel / u-boot.git / commitdiff