hpet: common ACPI generation

HPET's min ticks (minimum time between events to avoid
losing interrupts) is chipset specific, so move it to
Kconfig.

Via also has a special base address, so move it as well.

Apart from these (and the base address was already #defined),
the table is very uniform.

Change-Id: I848a2e2b0b16021c7ee5ba99097fa6a5886c3286
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1562
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>

10 files changed, 24 insertions, 17 deletions

diff --git a/src/southbridge/intel/bd82x6x/Kconfig b/src/southbridge/intel/bd82x6x/Kconfig
index a7d41dcb84..75858c2a67 100644
--- a/src/southbridge/intel/bd82x6x/Kconfig
+++ b/src/southbridge/intel/bd82x6x/Kconfig
@@ -55,4 +55,8 @@ config SERIRQ_CONTINUOUS_MODE
 	  If you set this option to y, the serial IRQ machine will be
 	  operated in continuous mode.
 
+config HPET_MIN_TICKS
+	hex
+	default 0x80
+
 endif
diff --git a/src/southbridge/intel/bd82x6x/pch.h b/src/southbridge/intel/bd82x6x/pch.h
index 7e67e3bbe6..c9044ed1d3 100644
--- a/src/southbridge/intel/bd82x6x/pch.h
+++ b/src/southbridge/intel/bd82x6x/pch.h
@@ -47,7 +47,6 @@
 #define DEFAULT_GPIOBASE	0x0480
 #define DEFAULT_PMBASE		0x0500
 
-#define HPET_ADDR		0xfed00000
 #define DEFAULT_RCBA		0xfed1c000
 
 #ifndef __ACPI__
diff --git a/src/southbridge/intel/i3100/Kconfig b/src/southbridge/intel/i3100/Kconfig
index f2b7923039..e0acc632f4 100644
--- a/src/southbridge/intel/i3100/Kconfig
+++ b/src/southbridge/intel/i3100/Kconfig
@@ -2,3 +2,12 @@ config SOUTHBRIDGE_INTEL_I3100
 	bool
 	select IOAPIC
 	select HAVE_HARD_RESET
+
+if SOUTHBRIDGE_INTEL_I3100
+
+config HPET_MIN_TICKS
+        hex
+        default 0x90
+
+endif
+
diff --git a/src/southbridge/intel/i82801ax/i82801ax.h b/src/southbridge/intel/i82801ax/i82801ax.h
index bd192e019e..186a917975 100644
--- a/src/southbridge/intel/i82801ax/i82801ax.h
+++ b/src/southbridge/intel/i82801ax/i82801ax.h
@@ -33,7 +33,6 @@ int smbus_read_byte(u8 device, u8 address);
 
 #define SMBUS_IO_BASE		0x0f00
 #define PMBASE_ADDR		0x0400
-#define HPET_ADDR		0xfed00000
 
 #define PCI_DMA_CFG		0x90
 #define SERIRQ_CNTL		0x64
diff --git a/src/southbridge/intel/i82801bx/i82801bx.h b/src/southbridge/intel/i82801bx/i82801bx.h
index 090cddfbae..405e52baa6 100644
--- a/src/southbridge/intel/i82801bx/i82801bx.h
+++ b/src/southbridge/intel/i82801bx/i82801bx.h
@@ -34,7 +34,6 @@ int smbus_read_byte(u8 device, u8 address);
 #define SMBUS_IO_BASE		0x0f00
 #define PMBASE_ADDR		0x0400
 #define GPIO_BASE_ADDR		0x0500
-#define HPET_ADDR		0xfed00000
 
 #define SECSTS			0x1e
 
diff --git a/src/southbridge/intel/i82801dx/i82801dx.h b/src/southbridge/intel/i82801dx/i82801dx.h
index 4da430a395..d9e4d3809d 100644
--- a/src/southbridge/intel/i82801dx/i82801dx.h
+++ b/src/southbridge/intel/i82801dx/i82801dx.h
@@ -41,15 +41,6 @@ int smbus_read_byte(unsigned device, unsigned address);
 #endif
 #endif
 
-/*
- * HPET Memory Address Range. Possible values:
- * 0xfed00000 for FED0_0000h - FED0_03FFh
- * 0xfed01000 for FED0_1000h - FED0_13FFh
- * 0xfed02000 for FED0_2000h - FED0_23FFh
- * 0xfed03000 for FED0_3000h - FED0_33FFh
- */
-#define HPET_ADDR		0xfed00000
-
 #define DEBUG_PERIODIC_SMIS 0
 
 #define MAINBOARD_POWER_OFF	0
diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c
index 768e70096b..fbf8e12228 100644
--- a/src/southbridge/intel/i82801dx/lpc.c
+++ b/src/southbridge/intel/i82801dx/lpc.c
@@ -233,7 +233,7 @@ static void enable_hpet(struct device *dev)
 	u32 reg32, hpet, val;
 
 	/* Set HPET base address and enable it */
-	printk(BIOS_DEBUG, "Enabling HPET at 0x%x\n", HPET_ADDR);
+	printk(BIOS_DEBUG, "Enabling HPET at 0x%x\n", CONFIG_HPET_ADDRESS);
 	reg32 = pci_read_config32(dev, GEN_CNTL);
 	/*
 	 * Bit 17 is HPET enable bit.
@@ -241,7 +241,7 @@ static void enable_hpet(struct device *dev)
 	 */
 	reg32 &= ~(3 << 15);	/* Clear it */
 
-	hpet = HPET_ADDR >> 12;
+	hpet = CONFIG_HPET_ADDRESS >> 12;
 	hpet &= 0x3;
 
 	reg32 |= (hpet << 15);
@@ -254,7 +254,7 @@ static void enable_hpet(struct device *dev)
 	val &= 0x7;
 
 	if ((val & 0x4) && (hpet == (val & 0x3))) {
-		printk(BIOS_INFO, "HPET enabled at 0x%x\n", HPET_ADDR);
+		printk(BIOS_INFO, "HPET enabled at 0x%x\n", CONFIG_HPET_ADDRESS);
 	} else {
 		printk(BIOS_WARNING, "HPET was not enabled correctly\n");
 		reg32 &= ~(1 << 17);	/* Clear Enable */
diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig
index 3550954583..4937df7096 100644
--- a/src/southbridge/intel/i82801gx/Kconfig
+++ b/src/southbridge/intel/i82801gx/Kconfig
@@ -41,7 +41,10 @@ config USBDEBUG_DEFAULT_PORT
 config BOOTBLOCK_SOUTHBRIDGE_INIT
         string
 	default "southbridge/intel/i82801gx/bootblock.c"
-	depends on SOUTHBRIDGE_INTEL_I82801GX
+
+config HPET_MIN_TICKS
+	hex
+	default 0x80
 
 endif
 
diff --git a/src/southbridge/intel/i82801gx/i82801gx.h b/src/southbridge/intel/i82801gx/i82801gx.h
index 8fb5b92f43..566311f55f 100644
--- a/src/southbridge/intel/i82801gx/i82801gx.h
+++ b/src/southbridge/intel/i82801gx/i82801gx.h
@@ -32,7 +32,6 @@
 #define DEFAULT_GPIOBASE	0x0480
 #define DEFAULT_PMBASE		0x0500
 
-#define HPET_ADDR		0xfed00000
 #define DEFAULT_RCBA		0xfed1c000
 
 #ifndef __ACPI__
diff --git a/src/southbridge/intel/sch/Kconfig b/src/southbridge/intel/sch/Kconfig
index 83ff447f3e..32eb8688ec 100644
--- a/src/southbridge/intel/sch/Kconfig
+++ b/src/southbridge/intel/sch/Kconfig
@@ -48,5 +48,9 @@ config CMC_FILE
 	  The path and filename of the file to use as CMC state machine
 	  binary.
 
+config HPET_MIN_TICKS
+        hex
+        default 0x80
+
 endif