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ARCv2: boot log: identify HS48 cores (dual issue) 

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
hifive-unleashed-5.1
Vineet Gupta 2017-09-21 18:02:44 -07:00
parent 010a8c9888
commit dea8252059
2 changed files with 16 additions and 4 deletions
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3
arch/arc/include/asm/arcregs.h
View File

@ -98,6 +98,7 @@
/* Auxiliary registers */
#define AUX_IDENTITY 4
#define AUX_EXEC_CTRL 8
#define AUX_INTR_VEC_BASE 0x25
#define AUX_VOL 0x5e
@ -269,7 +270,7 @@ struct cpuinfo_arc {
struct cpuinfo_arc_ccm iccm, dccm;
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
fpu_sp:1, fpu_dp:1, pad2:6,
fpu_sp:1, fpu_dp:1, dual_iss_enb:1, dual_iss_exist:1, pad2:4,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} extn;

17
arch/arc/kernel/setup.c
View File

@ -51,6 +51,7 @@ static const struct id_to_str arc_cpu_rel[] = {
{ 0x51, "R2.0" },
{ 0x52, "R2.1" },
{ 0x53, "R3.0" },
{ 0x54, "R4.0" },
#endif
{ 0x00, NULL }
};
@ -62,6 +63,7 @@ static const struct id_to_str arc_cpu_nm[] = {
#else
{ 0x40, "ARC EM" },
{ 0x50, "ARC HS38" },
{ 0x54, "ARC HS48" },
#endif
{ 0x00, "Unknown" }
};
@ -133,7 +135,7 @@ static void read_arc_build_cfg_regs(void)
}
for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) {
if ((cpu->core.family & 0xF0) == tbl->id)
if ((cpu->core.family & 0xF4) == tbl->id)
break;
}
cpu->name = tbl->str;
@ -192,6 +194,14 @@ static void read_arc_build_cfg_regs(void)
cpu->bpu.full = bpu.ft;
cpu->bpu.num_cache = 256 << bpu.bce;
cpu->bpu.num_pred = 2048 << bpu.pte;
if (cpu->core.family >= 0x54) {
unsigned int exec_ctrl;
READ_BCR(AUX_EXEC_CTRL, exec_ctrl);
cpu->extn.dual_iss_exist = 1;
cpu->extn.dual_iss_enb = exec_ctrl & 1;
}
}
READ_BCR(ARC_REG_AP_BCR, bcr);
@ -239,10 +249,11 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
"\nIDENTITY\t: ARCVER [%#02x] ARCNUM [%#02x] CHIPID [%#4x]\n",
core->family, core->cpu_id, core->chip_id);
n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s\n",
n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",
cpu_id, cpu->name, cpu->details,
is_isa_arcompact() ? "ARCompact" : "ARCv2",
IS_AVAIL1(cpu->isa.be, "[Big-Endian]"));
IS_AVAIL1(cpu->isa.be, "[Big-Endian]"),
IS_AVAIL3(cpu->extn.dual_iss_exist, cpu->extn.dual_iss_enb, " Dual-Issue"));
n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s%s%s\nISA Extn\t: ",
IS_AVAIL1(cpu->extn.timer0, "Timer0 "),