---

yaml
---
r: 200429
b: refs/heads/master
c: 932e0c2
h: refs/heads/master
i:
  200427: af10e4e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5efa16ff77cb785647a480dcdc70a6b4fc787996
+refs/heads/master: 932e0c201d28a728e25d3b641aa95bd28ceb08b4

trunk/arch/alpha/kernel/Makefile

@@ -35,7 +35,7 @@ endif
 
 obj-y	 += irq_pyxis.o irq_i8259.o irq_srm.o
 obj-y	 += err_ev6.o
-obj-y	 += es1888.o smc37c669.o smc37c93x.o ns87312.o gct.o
+obj-y	 += es1888.o smc37c669.o smc37c93x.o pc873xx.o gct.o
 obj-y    += srmcons.o
 
 else
@@ -63,11 +63,11 @@ obj-$(CONFIG_ALPHA_WILDFIRE)	+= core_wildfire.o
 # Board support
 obj-$(CONFIG_ALPHA_ALCOR)	+= sys_alcor.o irq_i8259.o irq_srm.o
 obj-$(CONFIG_ALPHA_CABRIOLET)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_EB164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_EB66P)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_LX164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
 				   smc37c93x.o
 obj-$(CONFIG_ALPHA_PC164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
@@ -90,14 +90,14 @@ obj-$(CONFIG_ALPHA_RUFFIAN)	+= sys_ruffian.o irq_pyxis.o irq_i8259.o
 obj-$(CONFIG_ALPHA_RX164)	+= sys_rx164.o irq_i8259.o
 obj-$(CONFIG_ALPHA_SABLE)	+= sys_sable.o
 obj-$(CONFIG_ALPHA_LYNX)	+= sys_sable.o
-obj-$(CONFIG_ALPHA_BOOK1)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_AVANTI)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_NONAME)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_P2K)		+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_XL)		+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
+obj-$(CONFIG_ALPHA_BOOK1)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_AVANTI)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_NONAME)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_P2K)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_XL)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
 obj-$(CONFIG_ALPHA_SX164)	+= sys_sx164.o irq_pyxis.o irq_i8259.o \
 				   irq_srm.o smc37c669.o
-obj-$(CONFIG_ALPHA_TAKARA)	+= sys_takara.o irq_i8259.o ns87312.o
+obj-$(CONFIG_ALPHA_TAKARA)	+= sys_takara.o irq_i8259.o pc873xx.o
 obj-$(CONFIG_ALPHA_WILDFIRE)	+= sys_wildfire.o irq_i8259.o
 
 # Error support

trunk/arch/alpha/kernel/pc873xx.c

@@ -0,0 +1,88 @@
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#include "pc873xx.h"
+
+static unsigned pc873xx_probelist[] = {0x398, 0x26e, 0};
+
+static char *pc873xx_names[] = {
+	"PC87303", "PC87306", "PC87312", "PC87332", "PC87334"
+};
+
+static unsigned int base, model;
+
+
+unsigned int __init pc873xx_get_base()
+{
+	return base;
+}
+
+char *__init pc873xx_get_model()
+{
+	return pc873xx_names[model];
+}
+
+static unsigned char __init pc873xx_read(unsigned int base, int reg)
+{
+	outb(reg, base);
+	return inb(base + 1);
+}
+
+static void __init pc873xx_write(unsigned int base, int reg, unsigned char data)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	outb(reg, base);
+	outb(data, base + 1);
+	outb(data, base + 1);		/* Must be written twice */
+	local_irq_restore(flags);
+}
+
+int __init pc873xx_probe(void)
+{
+	int val, index = 0;
+
+	while ((base = pc873xx_probelist[index++])) {
+
+		if (request_region(base, 2, "Super IO PC873xx") == NULL)
+			continue;
+
+		val = pc873xx_read(base, REG_SID);
+		if ((val & 0xf0) == 0x10) {
+			model = PC87332;
+			break;
+		} else if ((val & 0xf8) == 0x70) {
+			model = PC87306;
+			break;
+		} else if ((val & 0xf8) == 0x50) {
+			model = PC87334;
+			break;
+		} else if ((val & 0xf8) == 0x40) {
+			model = PC87303;
+			break;
+		}
+
+		release_region(base, 2);
+	}
+
+	return (base == 0) ? -1 : 1;
+}
+
+void __init pc873xx_enable_epp19(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling EPP v1.9\n");
+	data = pc873xx_read(base, REG_PCR);
+	pc873xx_write(base, REG_PCR, (data & 0xFC) | 0x02);
+}
+
+void __init pc873xx_enable_ide(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling IDE interrupt\n");
+	data = pc873xx_read(base, REG_FER);
+	pc873xx_write(base, REG_FER, data | 0x40);
+}

trunk/arch/alpha/kernel/pc873xx.h

@@ -0,0 +1,35 @@
+
+#ifndef _PC873xx_H_
+#define _PC873xx_H_
+
+/*
+ * Control Register Values
+ */
+#define REG_FER	0x00
+#define REG_FAR	0x01
+#define REG_PTR	0x02
+#define REG_FCR	0x03
+#define REG_PCR	0x04
+#define REG_KRR	0x05
+#define REG_PMC	0x06
+#define REG_TUP	0x07
+#define REG_SID	0x08
+#define REG_ASC	0x09
+#define REG_IRC	0x0e
+
+/*
+ * Model numbers
+ */
+#define PC87303	0
+#define PC87306	1
+#define PC87312	2
+#define PC87332	3
+#define PC87334	4
+
+int pc873xx_probe(void);
+unsigned int pc873xx_get_base(void);
+char *pc873xx_get_model(void);
+void pc873xx_enable_epp19(void);
+void pc873xx_enable_ide(void);
+
+#endif

trunk/arch/alpha/kernel/sys_sio.c

@@ -34,6 +34,7 @@
 #include "irq_impl.h"
 #include "pci_impl.h"
 #include "machvec_impl.h"
+#include "pc873xx.h"
 
 #if defined(ALPHA_RESTORE_SRM_SETUP)
 /* Save LCA configuration data as the console had it set up.  */
@@ -208,7 +209,27 @@ noname_init_pci(void)
 	common_init_pci();
 	sio_pci_route();
 	sio_fixup_irq_levels(sio_collect_irq_levels());
-	ns87312_enable_ide(0x26e);
+
+	if (pc873xx_probe() == -1) {
+		printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+	} else {
+		printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+			pc873xx_get_model(), pc873xx_get_base());
+
+		/* Enabling things in the Super IO chip doesn't actually
+		 * configure and enable things, the legacy drivers still
+		 * need to do the actual configuration and enabling.
+		 * This only unblocks them.
+		 */
+
+#if !defined(CONFIG_ALPHA_AVANTI)
+		/* Don't bother on the Avanti family.
+		 * None of them had on-board IDE.
+		 */
+		pc873xx_enable_ide();
+#endif
+		pc873xx_enable_epp19();
+	}
 }
 
 static inline void __init