Linux-MIPS Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH 1/2] MIPS: Rename JZRISC to XBURST
@ 2019-05-07 22:43 Paul Cercueil
  2019-05-07 22:43 ` [PATCH 2/2] MIPS: Decode config3 register on Ingenic SoCs Paul Cercueil
  0 siblings, 1 reply; 2+ messages in thread
From: Paul Cercueil @ 2019-05-07 22:43 UTC (permalink / raw)
  To: Ralf Baechle, Paul Burton, James Hogan
  Cc: od, linux-mips, linux-kernel, Paul Cercueil

The real name of the CPU present in the JZ line of SoCs from Ingenic is
XBurst, not JZRISC.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 arch/mips/include/asm/cpu-type.h | 2 +-
 arch/mips/include/asm/cpu.h      | 4 ++--
 arch/mips/kernel/cpu-probe.c     | 8 ++++----
 arch/mips/kernel/idle.c          | 2 +-
 arch/mips/mm/sc-mips.c           | 2 +-
 arch/mips/mm/tlbex.c             | 2 +-
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index a45af3de075d..518659694112 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -38,7 +38,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 #if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \
     defined(CONFIG_SYS_HAS_CPU_MIPS32_R2)
 	case CPU_4KEC:
-	case CPU_JZRISC:
+	case CPU_XBURST:
 #endif
 
 #ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 6ad7d3cabd91..4905ce6a72a5 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -181,7 +181,7 @@
  * These are the PRID's for when 23:16 == PRID_COMP_INGENIC_*
  */
 
-#define PRID_IMP_JZRISC	       0x0200
+#define PRID_IMP_XBURST	       0x0200
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
@@ -313,7 +313,7 @@ enum cpu_type_enum {
 	 */
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
 	CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
-	CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
+	CPU_BMIPS4380, CPU_BMIPS5000, CPU_XBURST, CPU_LOONGSON1, CPU_M14KC,
 	CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K,
 	CPU_M5150, CPU_I6400, CPU_P6600, CPU_M6250,
 
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index d5e335e6846a..fdb73c1b0cd7 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1960,14 +1960,14 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
-	/* JZRISC does not implement the CP0 counter. */
+	/* XBurst does not implement the CP0 counter. */
 	c->options &= ~MIPS_CPU_COUNTER;
 	BUG_ON(!__builtin_constant_p(cpu_has_counter) || cpu_has_counter);
 	switch (c->processor_id & PRID_IMP_MASK) {
-	case PRID_IMP_JZRISC:
-		c->cputype = CPU_JZRISC;
+	case PRID_IMP_XBURST:
+		c->cputype = CPU_XBURST;
 		c->writecombine = _CACHE_UNCACHED_ACCELERATED;
-		__cpu_name[cpu] = "Ingenic JZRISC";
+		__cpu_name[cpu] = "Ingenic XBurst";
 		break;
 	default:
 		panic("Unknown Ingenic Processor ID!");
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 695f55477503..99b8e06f8a4b 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -177,7 +177,7 @@ void __init check_wait(void)
 	case CPU_CAVIUM_OCTEON_PLUS:
 	case CPU_CAVIUM_OCTEON2:
 	case CPU_CAVIUM_OCTEON3:
-	case CPU_JZRISC:
+	case CPU_XBURST:
 	case CPU_LOONGSON1:
 	case CPU_XLR:
 	case CPU_XLP:
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 394673991bab..9385ddbd6e47 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -225,7 +225,7 @@ static inline int __init mips_sc_probe(void)
 	 * According to config2 it would be 5-ways, but that is contradicted
 	 * by all documentation.
 	 */
-	if (current_cpu_type() == CPU_JZRISC &&
+	if (current_cpu_type() == CPU_XBURST &&
 				mips_machtype == MACH_INGENIC_JZ4770)
 		c->scache.ways = 4;
 
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 65b6e85447b1..5d07a5f45ffb 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -609,7 +609,7 @@ void build_tlb_write_entry(u32 **p, struct uasm_label **l,
 		tlbw(p);
 		break;
 
-	case CPU_JZRISC:
+	case CPU_XBURST:
 		tlbw(p);
 		uasm_i_nop(p);
 		break;
-- 
2.21.0.593.g511ec345e18


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [PATCH 2/2] MIPS: Decode config3 register on Ingenic SoCs
  2019-05-07 22:43 [PATCH 1/2] MIPS: Rename JZRISC to XBURST Paul Cercueil
@ 2019-05-07 22:43 ` Paul Cercueil
  0 siblings, 0 replies; 2+ messages in thread
From: Paul Cercueil @ 2019-05-07 22:43 UTC (permalink / raw)
  To: Ralf Baechle, Paul Burton, James Hogan
  Cc: od, linux-mips, linux-kernel, Paul Cercueil

XBurst misses a config2 register, so config3 decode was skipped in
decode_configs().

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 arch/mips/kernel/cpu-probe.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index fdb73c1b0cd7..ed240cdfef46 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1960,9 +1960,17 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
+
+	/*
+	 * XBurst misses a config2 register, so config3 decode was skipped in
+	 * decode_configs().
+	 */
+	decode_config3(c);
+
 	/* XBurst does not implement the CP0 counter. */
 	c->options &= ~MIPS_CPU_COUNTER;
 	BUG_ON(!__builtin_constant_p(cpu_has_counter) || cpu_has_counter);
+
 	switch (c->processor_id & PRID_IMP_MASK) {
 	case PRID_IMP_XBURST:
 		c->cputype = CPU_XBURST;
-- 
2.21.0.593.g511ec345e18


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, back to index

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-05-07 22:43 [PATCH 1/2] MIPS: Rename JZRISC to XBURST Paul Cercueil
2019-05-07 22:43 ` [PATCH 2/2] MIPS: Decode config3 register on Ingenic SoCs Paul Cercueil

Linux-MIPS Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-mips/0 linux-mips/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-mips linux-mips/ https://lore.kernel.org/linux-mips \
		linux-mips@vger.kernel.org linux-mips@archiver.kernel.org
	public-inbox-index linux-mips


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-mips


AGPL code for this site: git clone https://public-inbox.org/ public-inbox