sb/via/common: Drop unused code

Change-Id: I803b9bba4067435e471e9565d3286f11a0a361a3
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36960
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

7 files changed, 0 insertions, 282 deletions

diff --git a/src/southbridge/via/common/early_smbus_delay.c b/src/southbridge/via/common/early_smbus_delay.c
deleted file mode 100644
index c75152c3a7..0000000000
--- a/src/southbridge/via/common/early_smbus_delay.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011-2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <arch/io.h>
-#include <device/early_smbus.h>
-
-/**
- * \brief Brief delay for SMBus transactions
- */
-void smbus_delay(void)
-{
-	inb(0x80);
-}
diff --git a/src/southbridge/via/common/early_smbus_is_busy.c b/src/southbridge/via/common/early_smbus_is_busy.c
deleted file mode 100644
index 8321a55bd5..0000000000
--- a/src/southbridge/via/common/early_smbus_is_busy.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <arch/io.h>
-#include <device/early_smbus.h>
-
-#include "via_early_smbus.h"
-
-/**
- * \brief Checks if the SMBus is currently busy with a transaction
- *
- * @param smbus_dev The base SMBus IO port
- */
-int smbus_is_busy(u32 smbus_dev)
-{
-	/* Check if bit 0 of the status register is 1 (busy) or 0 (ready) */
-	return ((inb(SMBHSTSTAT(smbus_dev)) & (1 << 0)) == 1);
-}
diff --git a/src/southbridge/via/common/early_smbus_print_error.c b/src/southbridge/via/common/early_smbus_print_error.c
deleted file mode 100644
index cf65b2ec59..0000000000
--- a/src/southbridge/via/common/early_smbus_print_error.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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/early_smbus.h>
-
-#include "via_early_smbus.h"
-
-/**
- * \brief Print an error, should it occur. If no error, just exit.
- *
- * @param smbus_dev The base SMBus IO port
- * @param host_status The data returned on the host status register after
- *		      a transaction is processed.
- * @param loops The number of times a transaction was attempted.
- * @return	0 if no error occurred
- *		1 if an error was detected
- */
-int smbus_print_error(u32 smbus_dev, u8 host_status, int loops)
-{
-	/* Check if there actually was an error. */
-	if ((host_status == 0x00 || host_status == 0x40 ||
-	     host_status == 0x42) && (loops < SMBUS_TIMEOUT))
-		return 0;
-
-	if (loops >= SMBUS_TIMEOUT)
-		printsmbus("SMBus timeout\n");
-	if (host_status & (1 << 4))
-		printsmbus("Interrupt/SMI# was Failed Bus Transaction\n");
-	if (host_status & (1 << 3))
-		printsmbus("Bus error\n");
-	if (host_status & (1 << 2))
-		printsmbus("Device error\n");
-	if (host_status & (1 << 1))
-		printsmbus("Interrupt/SMI# completed successfully\n");
-	if (host_status & (1 << 0))
-		printsmbus("Host busy\n");
-	return 1;
-}
diff --git a/src/southbridge/via/common/early_smbus_read_byte.c b/src/southbridge/via/common/early_smbus_read_byte.c
deleted file mode 100644
index 4f6e29e71b..0000000000
--- a/src/southbridge/via/common/early_smbus_read_byte.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <arch/io.h>
-#include <device/early_smbus.h>
-
-#include "via_early_smbus.h"
-
-/**
- * \brief Read a byte from the SMBus.
- *
- * @param smbus_dev The base SMBus IO port
- * @param addr The address location of the DIMM on the SMBus.
- * @param offset The offset the data is located at.
- */
-u8 smbus_read_byte(u32 smbus_dev, u8 addr, u8 offset)
-{
-	u8 val;
-
-	/* Initialize SMBus sequence */
-	smbus_reset(smbus_dev);
-	/* Clear host data port. */
-	outb(0x00, SMBHSTDAT0(smbus_dev));
-
-	smbus_wait_until_ready(smbus_dev);
-
-	/* Actual addr to reg format. */
-	addr = (addr << 1);
-	addr |= 1;		/* read command */
-	outb(addr, SMBXMITADD(smbus_dev));
-	outb(offset, SMBHSTCMD(smbus_dev));
-	/* Start transaction, byte data read. */
-	outb(0x48, SMBHSTCTL(smbus_dev));
-	smbus_wait_until_ready(smbus_dev);
-
-	val = inb(SMBHSTDAT0(smbus_dev));
-	return val;
-}
diff --git a/src/southbridge/via/common/early_smbus_reset.c b/src/southbridge/via/common/early_smbus_reset.c
deleted file mode 100644
index 44975408cb..0000000000
--- a/src/southbridge/via/common/early_smbus_reset.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <arch/io.h>
-#include <device/early_smbus.h>
-
-#include "via_early_smbus.h"
-
-/**
- * \brief Clear the SMBus host status register
- *
- * @param smbus_dev The base SMBus IO port
- */
-void smbus_reset(u32 smbus_dev)
-{
-	outb(0xdf, SMBHSTSTAT(smbus_dev));
-}
diff --git a/src/southbridge/via/common/early_smbus_wait_until_ready.c b/src/southbridge/via/common/early_smbus_wait_until_ready.c
deleted file mode 100644
index 6b189362ec..0000000000
--- a/src/southbridge/via/common/early_smbus_wait_until_ready.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <arch/io.h>
-#include <device/early_smbus.h>
-
-#include "via_early_smbus.h"
-
-/**
- * \brief Wait for the SMBus to become ready to process a new transaction.
- *
- * @param smbus_dev The base SMBus IO port
- */
-int smbus_wait_until_ready(u32 smbus_dev)
-{
-	int loops;
-
-	printsmbus("Waiting until SMBus ready\n");
-
-	/* Loop up to SMBUS_TIMEOUT times, waiting for bit 0 of the
-	 * SMBus Host Status register to go to 0, indicating the operation
-	 * was completed successfully. I don't remember why I did it this way,
-	 * but I think it was because ROMCC was running low on registers */
-	loops = 0;
-	while (smbus_is_busy(smbus_dev) && loops < SMBUS_TIMEOUT)
-		++loops;
-
-	return smbus_print_error(smbus_dev, inb(SMBHSTSTAT(smbus_dev)), loops);
-}
diff --git a/src/southbridge/via/common/via_early_smbus.h b/src/southbridge/via/common/via_early_smbus.h
deleted file mode 100644
index 1dce9b6049..0000000000
--- a/src/southbridge/via/common/via_early_smbus.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
- *
- * 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, either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- */
-
-/**
- * @file via_early_smbus.h
- *
- * This file contains generic definitions used in VIA SMBus controllers.
- *
- * Functions defined in device/early/smbus.h are each implemented in a separate
- * early_smbus_[func_name].c file. This makes it possible to override any of
- * these functions by not including them in your build, via Makefile.c. This is
- * useful when there is a need to work around chipset bugs.
- *
- * These implementations work with most via chipsets. Any VIA port should try
- * to use these. Makefile.inc needs to be adapted to link against the files
- * providing SMBus functionality:
- * @code
- *	romstage-y += ./../../../southbridge/via/common/early_smbus_func.c
- * @endcode
- */
-
-/**
- * \brief SMBus IO ports in relation to the base IO port
- */
-
-#define SMBHSTSTAT(base)		((u16)base + 0x0)
-#define SMBSLVSTAT(base)		((u16)base + 0x1)
-#define SMBHSTCTL(base)			((u16)base + 0x2)
-#define SMBHSTCMD(base)			((u16)base + 0x3)
-#define SMBXMITADD(base)		((u16)base + 0x4)
-#define SMBHSTDAT0(base)		((u16)base + 0x5)
-#define SMBHSTDAT1(base)		((u16)base + 0x6)
-#define SMBBLKDAT(base)			((u16)base + 0x7)
-#define SMBSLVCTL(base)			((u16)base + 0x8)
-#define SMBTRNSADD(base)		((u16)base + 0x9)
-#define SMBSLVDATA (base)		((u16)base + 0xa)
-
-#define SMBUS_TIMEOUT			(100*1000*10)