Remove VIA C7 CPU support

Change-Id: Ib8c943e01ac293bdbf37f43ff72dbb636b46a8af
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26681
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

4 files changed, 0 insertions, 263 deletions

diff --git a/src/cpu/via/Makefile.inc b/src/cpu/via/Makefile.inc
index e11cb21347..d68ff6501f 100644
--- a/src/cpu/via/Makefile.inc
+++ b/src/cpu/via/Makefile.inc
@@ -1,2 +1 @@
-subdirs-$(CONFIG_CPU_VIA_C7)   += c7
 subdirs-$(CONFIG_CPU_VIA_NANO) += nano
diff --git a/src/cpu/via/c7/Kconfig b/src/cpu/via/c7/Kconfig
deleted file mode 100644
index b71178dae5..0000000000
--- a/src/cpu/via/c7/Kconfig
+++ /dev/null
@@ -1,26 +0,0 @@
-config CPU_VIA_C7
-	bool
-
-if CPU_VIA_C7
-
-config CPU_SPECIFIC_OPTIONS
-	def_bool y
-	select ARCH_BOOTBLOCK_X86_32
-	select ARCH_VERSTAGE_X86_32
-	select ARCH_ROMSTAGE_X86_32
-	select ARCH_RAMSTAGE_X86_32
-	# Missing tsc_freq_mhz and TSC_CONSTANT_RATE
-	#select UDELAY_TSC
-	select UDELAY_IO
-	select MMX
-	select SSE2
-
-config DCACHE_RAM_BASE
-	hex
-	default 0xffef0000
-
-config DCACHE_RAM_SIZE
-	hex
-	default 0x8000
-
-endif # CPU_VIA_C7
diff --git a/src/cpu/via/c7/Makefile.inc b/src/cpu/via/c7/Makefile.inc
deleted file mode 100644
index 8c13d91a92..0000000000
--- a/src/cpu/via/c7/Makefile.inc
+++ /dev/null
@@ -1,10 +0,0 @@
-subdirs-y += ../../x86/tsc
-subdirs-y += ../../x86/mtrr
-subdirs-y += ../../x86/lapic
-subdirs-y += ../../x86/cache
-subdirs-y += ../../x86/smm
-subdirs-y += ../../intel/microcode
-
-ramstage-y += c7_init.c
-
-cpu_incs-y += $(src)/cpu/via/car/cache_as_ram.inc
diff --git a/src/cpu/via/c7/c7_init.c b/src/cpu/via/c7/c7_init.c
deleted file mode 100644
index 1527e64a81..0000000000
--- a/src/cpu/via/c7/c7_init.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * (C) 2007-2009 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <device/device.h>
-#include <console/console.h>
-#include <delay.h>
-#include <stdlib.h>
-#include <cpu/cpu.h>
-#include <cpu/x86/mtrr.h>
-#include <cpu/x86/msr.h>
-#include <cpu/x86/lapic.h>
-#include <cpu/x86/cache.h>
-
-#define MSR_IA32_PERF_STATUS	0x00000198
-#define MSR_IA32_PERF_CTL	0x00000199
-#define MSR_IA32_MISC_ENABLE	0x000001a0
-
-static int c7a_speed_translation[] = {
-//      LFM     HFM
-	0x0409, 0x0f13,		// 400MHz, 844mV --> 1500MHz, 1.004V    C7-M
-	0x0409, 0x1018,		// 400MHz, 844mV --> 1600MHz, 1.084V
-	0x0409, 0x0c18,		// 533MHz, 844mV --> 1600MHz, 1.084V
-	0x0409, 0x121c,		// 400MHz, 844mV --> 1800MHz, 1.148V
-	0x0409, 0x0e1c,		// 533MHz, 844mV --> 1860MHz, 1.148V
-	0x0409, 0x141f,		// 400MHz, 844mV --> 2000MHz, 1.196V
-	0x0409, 0x0f1f,		// 533MHz, 844mV --> 2000MHz, 1.196V
-	0x0406, 0x0a06,		// 400MHz, 796mV --> 1000MHz, 796mV     C7-M ULV
-	0x0406, 0x0a09,		// 400MHz, 796mV --> 1000MHz, 844mV
-	0x0406, 0x0c09,		// 400MHz, 796mV --> 1200MHz, 844mV
-	0x0406, 0x0f10,		// 400MHz, 796mV --> 1500MHz, 956mV
-};
-
-static int c7d_speed_translation[] = {
-//      LFM     HFM
-	0x0409, 0x1018,		// 400MHz, 844mV --> 1600MHz, 1.084V    C7-M
-	0x0409, 0x121f,		// 400MHz, 844mV --> 1800MHz, 1.196V
-	0x0809, 0x121f,		// 800MHz, 844mV --> 1800MHz, 1.196V
-	0x0409, 0x141f,		// 400MHz, 844mV --> 2000MHz, 1.196V
-	0x0809, 0x141f,		// 800MHz, 844mV --> 2000MHz, 1.196V
-	0x0406, 0x0806,		// 400MHz, 796mV --> 800MHz, 796mV      C7-M ULV
-	0x0406, 0x0a06,		// 400MHz, 796mV --> 1000MHz, 796mV
-	0x0406, 0x0c09,		// 400MHz, 796mV --> 1200MHz, 844mV
-	0x0806, 0x0c09,		// 800MHz, 796mV --> 1200MHz, 844mV
-	0x0406, 0x0f10,		// 400MHz, 796mV --> 1500MHz, 956mV
-	0x0806, 0x1010,		// 800MHz, 796mV --> 1600MHz, 956mV
-};
-
-static void set_c7_speed(int model) {
-	int cnt, current, new, i;
-	msr_t msr;
-	printk(BIOS_DEBUG, "Enabling improved C7 clock and voltage.\n");
-
-	// Enable Speedstep
-	msr = rdmsr(MSR_IA32_MISC_ENABLE);
-	msr.lo |= (1 << 16);
-	wrmsr(MSR_IA32_MISC_ENABLE, msr);
-
-	msr = rdmsr(MSR_IA32_PERF_STATUS);
-
-	printk(BIOS_INFO, "Voltage: %dmV (min %dmV; max %dmV)\n",
-		    ((int)(msr.lo & 0xff) * 16 + 700),
-		    ((int)((msr.hi >> 16) & 0xff) * 16 + 700),
-		    ((int)(msr.hi & 0xff) * 16 + 700));
-
-	printk(BIOS_INFO, "CPU multiplier: %dx (min %dx; max %dx)\n",
-		    (int)((msr.lo >> 8) & 0xff),
-		    (int)((msr.hi >> 24) & 0xff), (int)((msr.hi >> 8) & 0xff));
-
-	printk(BIOS_DEBUG, " msr.lo = %x\n", msr.lo);
-
-	/* Wait while CPU is busy */
-	cnt = 0;
-	while (msr.lo & ((1 << 16) | (1 << 17))) {
-		udelay(16);
-		msr = rdmsr(MSR_IA32_PERF_STATUS);
-		cnt++;
-		if (cnt > 128) {
-			printk(BIOS_WARNING, "Could not update multiplier and voltage.\n");
-			return;
-		}
-	}
-
-	current = msr.lo & 0xffff;
-
-	// Start out with no change.
-	new = current;
-	switch (model) {
-	case 10:		// model A
-		for (i = 0; i < ARRAY_SIZE(c7a_speed_translation); i += 2) {
-			if ((c7a_speed_translation[i] == current) &&
-			    ((c7a_speed_translation[i + 1] & 0xff00) ==
-			     (msr.hi & 0xff00))) {
-				new = c7a_speed_translation[i + 1];
-			}
-		}
-		break;
-	case 13:		// model D
-		for (i = 0; i < ARRAY_SIZE(c7d_speed_translation); i += 2) {
-			if ((c7d_speed_translation[i] == current) &&
-			    ((c7d_speed_translation[i + 1] & 0xff00) ==
-			     (msr.hi & 0xff00))) {
-				new = c7d_speed_translation[i + 1];
-			}
-		}
-		break;
-	default:
-		printk(BIOS_INFO, "CPU type not known, multiplier unchanged.\n");
-	}
-
-	msr.lo = new;
-	msr.hi = 0;
-	printk(BIOS_DEBUG, " new msr.lo = %x\n", msr.lo);
-
-	wrmsr(MSR_IA32_PERF_CTL, msr);
-
-	/* Wait until the power transition ends */
-	cnt = 0;
-	do {
-		udelay(16);
-		msr = rdmsr(MSR_IA32_PERF_STATUS);
-		cnt++;
-		if (cnt > 128) {
-			printk(BIOS_WARNING, "Error while updating multiplier and voltage\n");
-			break;
-		}
-	} while (msr.lo & ((1 << 16) | (1 << 17)));
-
-	printk(BIOS_INFO, "Current voltage: %dmV\n", ((int)(msr.lo & 0xff) * 16 + 700));
-	printk(BIOS_INFO, "Current CPU multiplier: %dx\n", (int)((msr.lo >> 8) & 0xff));
-}
-
-static void c7_init(struct device *dev)
-{
-	u8 brand;
-	struct cpuinfo_x86 c;
-	msr_t msr;
-
-	get_fms(&c, dev->device);
-
-	printk(BIOS_INFO, "Detected VIA ");
-
-	switch (c.x86_model) {
-	case 10:
-		msr = rdmsr(0x1153);
-		brand = (((msr.lo >> 2) ^ msr.lo) >> 18) & 3;
-		printk(BIOS_INFO, "Model A ");
-		break;
-	case 13:
-		msr = rdmsr(0x1154);
-		brand = (((msr.lo >> 4) ^ (msr.lo >> 2))) & 0x000000ff;
-		printk(BIOS_INFO, "Model D ");
-		break;
-	default:
-		printk(BIOS_INFO, "Model Unknown ");
-		brand = 0xff;
-	}
-
-	switch (brand) {
-	case 0:
-		printk(BIOS_INFO, "C7-M\n");
-		break;
-	case 1:
-		printk(BIOS_INFO, "C7\n");
-		break;
-	case 2:
-		printk(BIOS_INFO, "Eden\n");
-		break;
-	case 3:
-		printk(BIOS_INFO, "C7-D\n");
-		break;
-	default:
-		printk(BIOS_INFO, "%02x (please report)\n", brand);
-	}
-
-	/* Gear up */
-	set_c7_speed(c.x86_model);
-
-	/* Enable APIC */
-	msr = rdmsr(0x1107);
-	msr.lo |= 1 << 24;
-	wrmsr(0x1107, msr);
-
-	/* Turn on cache */
-	x86_enable_cache();
-
-	/* Set up Memory Type Range Registers */
-	x86_setup_mtrrs();
-	x86_mtrr_check();
-
-	/* Enable the local CPU APICs */
-	setup_lapic();
-};
-
-static struct device_operations cpu_dev_ops = {
-	.init = c7_init,
-};
-
-/* Look in arch/x86/lib/cpu.c:cpu_initialize. If there is no CPU with an exact
- * ID, the CPU mask (stepping) is masked out and the check is repeated. This
- * allows us to keep the table significantly smaller.
- */
-
-static const struct cpu_device_id cpu_table[] = {
-	{X86_VENDOR_CENTAUR, 0x06A0},	// VIA C7 Esther
-	{X86_VENDOR_CENTAUR, 0x06A9},	// VIA C7 Esther
-	{X86_VENDOR_CENTAUR, 0x06D0},	// VIA C7-M
-	{0, 0},
-};
-
-static const struct cpu_driver driver __cpu_driver = {
-	.ops = &cpu_dev_ops,
-	.id_table = cpu_table,
-};