MIPS: Remove TX39XX support

No (active) developer owns this hardware, so let's remove Linux support.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>

9 files changed, 4 insertions, 75 deletions

diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 814b3da30501..7c96282bff2e 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -44,7 +44,6 @@ obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
 
 sw-y				:= r4k_switch.o
 sw-$(CONFIG_CPU_R3000)		:= r2300_switch.o
-sw-$(CONFIG_CPU_TX39XX)		:= r2300_switch.o
 sw-$(CONFIG_CPU_CAVIUM_OCTEON)	:= octeon_switch.o
 obj-y				+= $(sw-y)
 
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 24a529c6c4be..f0ea92937546 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1189,29 +1189,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 		c->tlbsize = 48;
 		break;
 	#endif
-	case PRID_IMP_TX39:
-		c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
-		c->options = MIPS_CPU_TLB | MIPS_CPU_TX39_CACHE;
-
-		if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
-			c->cputype = CPU_TX3927;
-			__cpu_name[cpu] = "TX3927";
-			c->tlbsize = 64;
-		} else {
-			switch (c->processor_id & PRID_REV_MASK) {
-			case PRID_REV_TX3912:
-				c->cputype = CPU_TX3912;
-				__cpu_name[cpu] = "TX3912";
-				c->tlbsize = 32;
-				break;
-			case PRID_REV_TX3922:
-				c->cputype = CPU_TX3922;
-				__cpu_name[cpu] = "TX3922";
-				c->tlbsize = 64;
-				break;
-			}
-		}
-		break;
 	case PRID_IMP_R4700:
 		c->cputype = CPU_R4700;
 		__cpu_name[cpu] = "R4700";
diff --git a/arch/mips/kernel/cpu-r3k-probe.c b/arch/mips/kernel/cpu-r3k-probe.c
index af654771918c..be93469c0e0e 100644
--- a/arch/mips/kernel/cpu-r3k-probe.c
+++ b/arch/mips/kernel/cpu-r3k-probe.c
@@ -118,28 +118,6 @@ void cpu_probe(void)
 			c->options |= MIPS_CPU_FPU;
 		c->tlbsize = 64;
 		break;
-	case PRID_COMP_LEGACY | PRID_IMP_TX39:
-		c->options = MIPS_CPU_TLB | MIPS_CPU_TX39_CACHE;
-
-		if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
-			c->cputype = CPU_TX3927;
-			__cpu_name[cpu] = "TX3927";
-			c->tlbsize = 64;
-		} else {
-			switch (c->processor_id & PRID_REV_MASK) {
-			case PRID_REV_TX3912:
-				c->cputype = CPU_TX3912;
-				__cpu_name[cpu] = "TX3912";
-				c->tlbsize = 32;
-				break;
-			case PRID_REV_TX3922:
-				c->cputype = CPU_TX3922;
-				__cpu_name[cpu] = "TX3922";
-				c->tlbsize = 64;
-				break;
-			}
-		}
-		break;
 	}
 
 	BUG_ON(!__cpu_name[cpu]);
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index d8ca173680f9..891393626dc6 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -100,7 +100,7 @@ restore_partial:		# restore partial frame
 	SAVE_AT
 	SAVE_TEMP
 	LONG_L	v0, PT_STATUS(sp)
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
 	and	v0, ST0_IEP
 #else
 	and	v0, ST0_IE
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index fc53ea2cf850..3425df6019c0 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -162,7 +162,7 @@ NESTED(handle_int, PT_SIZE, sp)
 	.set	push
 	.set	noat
 	mfc0	k0, CP0_STATUS
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
 	and	k0, ST0_IEP
 	bnez	k0, 1f
 
@@ -644,7 +644,7 @@ isrdhwr:
 	get_saved_sp	/* k1 := current_thread_info */
 	.set	noreorder
 	MFC0	k0, CP0_EPC
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
 	ori	k1, _THREAD_MASK
 	xori	k1, _THREAD_MASK
 	LONG_L	v1, TI_TP_VALUE(k1)
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index c81b3a039470..146d9fa77f75 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -36,13 +36,6 @@ static void __cpuidle r3081_wait(void)
 	raw_local_irq_enable();
 }
 
-static void __cpuidle r39xx_wait(void)
-{
-	if (!need_resched())
-		write_c0_conf(read_c0_conf() | TX39_CONF_HALT);
-	raw_local_irq_enable();
-}
-
 void __cpuidle r4k_wait(void)
 {
 	raw_local_irq_enable();
@@ -147,9 +140,6 @@ void __init check_wait(void)
 	case CPU_R3081E:
 		cpu_wait = r3081_wait;
 		break;
-	case CPU_TX3927:
-		cpu_wait = r39xx_wait;
-		break;
 	case CPU_R4200:
 /*	case CPU_R4300: */
 	case CPU_R4600:
diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c
index ab00e490482f..af3ef4c9f7de 100644
--- a/arch/mips/kernel/irq_txx9.c
+++ b/arch/mips/kernel/irq_txx9.c
@@ -72,11 +72,6 @@ static void txx9_irq_unmask(struct irq_data *d)
 	__raw_writel((__raw_readl(ilrp) & ~(0xff << ofs))
 		     | (txx9irq[irq_nr].level << ofs),
 		     ilrp);
-#ifdef CONFIG_CPU_TX39XX
-	/* update IRCSR */
-	__raw_writel(0, &txx9_ircptr->imr);
-	__raw_writel(irc_elevel, &txx9_ircptr->imr);
-#endif
 }
 
 static inline void txx9_irq_mask(struct irq_data *d)
@@ -88,15 +83,7 @@ static inline void txx9_irq_mask(struct irq_data *d)
 	__raw_writel((__raw_readl(ilrp) & ~(0xff << ofs))
 		     | (irc_dlevel << ofs),
 		     ilrp);
-#ifdef CONFIG_CPU_TX39XX
-	/* update IRCSR */
-	__raw_writel(0, &txx9_ircptr->imr);
-	__raw_writel(irc_elevel, &txx9_ircptr->imr);
-	/* flush write buffer */
-	__raw_readl(&txx9_ircptr->ssr);
-#else
 	mmiowb();
-#endif
 }
 
 static void txx9_irq_mask_ack(struct irq_data *d)
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 9f47a889b047..bb43bf850314 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -181,8 +181,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		seq_puts(m, " 3k_cache");
 	if (cpu_has_4k_cache)
 		seq_puts(m, " 4k_cache");
-	if (cpu_has_tx39_cache)
-		seq_puts(m, " tx39_cache");
 	if (cpu_has_octeon_cache)
 		seq_puts(m, " octeon_cache");
 	if (raw_cpu_has_fpu)
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index cbff1b974f88..c2d5f4bfe1f3 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -128,7 +128,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 		p->thread.reg17 = kthread_arg;
 		p->thread.reg29 = childksp;
 		p->thread.reg31 = (unsigned long) ret_from_kernel_thread;
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
 		status = (status & ~(ST0_KUP | ST0_IEP | ST0_IEC)) |
 			 ((status & (ST0_KUC | ST0_IEC)) << 2);
 #else