kbuild: Allow drivers to fit src/drivers/[X]/[Y]/ scheme

Reorder drivers to fit src/drivers/[X]/[Y]/ scheme to make
them pluggable.

Also, fix up the following driver subdirectories by switching
to the src/drivers/[X]/[Y]/ scheme as these are hard requirements
for the main change:

* drivers/intel
* drivers/pc80
* drivers/dec

Change-Id: I455d3089a317181d5b99bf658df759ec728a5f6b
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14047
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 0 insertions, 397 deletions

diff --git a/src/drivers/pc80/mc146818rtc.c b/src/drivers/pc80/mc146818rtc.c
deleted file mode 100644
index 6c39f812b9..0000000000
--- a/src/drivers/pc80/mc146818rtc.c
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 The Chromium OS Authors. All rights reserved.
- * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
- *
- * 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 <arch/acpi.h>
-#include <bcd.h>
-#include <stdint.h>
-#include <version.h>
-#include <console/console.h>
-#include <pc80/mc146818rtc.h>
-#include <boot/coreboot_tables.h>
-#include <rtc.h>
-#include <string.h>
-#include <cbfs.h>
-
-/* There's no way around this include guard. option_table.h is autogenerated */
-#if CONFIG_USE_OPTION_TABLE
-#include "option_table.h"
-#else
-#define LB_CKS_RANGE_START	0
-#define LB_CKS_RANGE_END	0
-#define LB_CKS_LOC		0
-#endif
-
-#include <smp/spinlock.h>
-
-#if (defined(__PRE_RAM__) &&	\
-IS_ENABLED(CONFIG_HAVE_ROMSTAGE_NVRAM_CBFS_SPINLOCK))
-	#define LOCK_NVRAM_CBFS_SPINLOCK spin_lock(romstage_nvram_cbfs_lock());
-	#define UNLOCK_NVRAM_CBFS_SPINLOCK spin_unlock(romstage_nvram_cbfs_lock());
-#else
-	#define LOCK_NVRAM_CBFS_SPINLOCK
-	#define UNLOCK_NVRAM_CBFS_SPINLOCK
-#endif
-
-static void cmos_reset_date(void)
-{
-	/* Now setup a default date equals to the build date */
-	struct rtc_time time = {
-		.sec = 0,
-		.min = 0,
-		.hour = 1,
-		.mday = bcd2bin(coreboot_build_date.day),
-		.mon = bcd2bin(coreboot_build_date.month),
-		.year = (bcd2bin(coreboot_build_date.century) * 100) +
-			bcd2bin(coreboot_build_date.year),
-		.wday = bcd2bin(coreboot_build_date.weekday)
-	};
-	rtc_set(&time);
-}
-
-static int cmos_checksum_valid(int range_start, int range_end, int cks_loc)
-{
-	if (IS_ENABLED(CONFIG_STATIC_OPTION_TABLE))
-		return 1;
-
-	int i;
-	u16 sum, old_sum;
-	sum = 0;
-	for (i = range_start; i <= range_end; i++)
-		sum += cmos_read(i);
-	old_sum = ((cmos_read(cks_loc) << 8) | cmos_read(cks_loc + 1)) &
-		  0x0ffff;
-	return sum == old_sum;
-}
-
-static void cmos_set_checksum(int range_start, int range_end, int cks_loc)
-{
-	int i;
-	u16 sum;
-	sum = 0;
-	for (i = range_start; i <= range_end; i++)
-		sum += cmos_read(i);
-	cmos_write(((sum >> 8) & 0x0ff), cks_loc);
-	cmos_write(((sum >> 0) & 0x0ff), cks_loc + 1);
-}
-
-#define RTC_CONTROL_DEFAULT (RTC_24H)
-#define RTC_FREQ_SELECT_DEFAULT (RTC_REF_CLCK_32KHZ | RTC_RATE_1024HZ)
-
-#ifndef __SMM__
-void cmos_init(bool invalid)
-{
-	bool cmos_invalid = invalid;
-	bool checksum_invalid = false;
-	bool clear_cmos;
-	size_t i;
-	uint8_t x;
-
-#ifndef __PRE_RAM__
-	/*
-	 * Avoid clearing pending interrupts and resetting the RTC control
-	 * register in the resume path because the Linux kernel relies on
-	 * this to know if it should restart the RTC timer queue if the wake
-	 * was due to the RTC alarm.
-	 */
-	if (acpi_is_wakeup_s3())
-		return;
-#endif /* __PRE_RAM__ */
-
-	printk(BIOS_DEBUG, "RTC Init\n");
-
-	if (IS_ENABLED(CONFIG_USE_OPTION_TABLE)) {
-		/* See if there has been a CMOS power problem. */
-		x = cmos_read(RTC_VALID);
-		cmos_invalid = !(x & RTC_VRT);
-
-		/* See if there is a CMOS checksum error */
-		checksum_invalid = !cmos_checksum_valid(PC_CKS_RANGE_START,
-						PC_CKS_RANGE_END, PC_CKS_LOC);
-
-		clear_cmos = false;
-	} else {
-		clear_cmos = true;
-	}
-
-	if (invalid || cmos_invalid || checksum_invalid) {
-		if (clear_cmos) {
-			cmos_write(0, 0x01);
-			cmos_write(0, 0x03);
-			cmos_write(0, 0x05);
-			for (i = 10; i < 128; i++)
-				cmos_write(0, i);
-		}
-
-		if (cmos_invalid)
-			cmos_reset_date();
-
-		printk(BIOS_WARNING, "RTC:%s%s%s%s\n",
-			invalid ? " Clear requested":"",
-			cmos_invalid ? " Power Problem":"",
-			checksum_invalid ? " Checksum invalid":"",
-			clear_cmos ? " zeroing cmos":"");
-	}
-
-	/* Setup the real time clock */
-	cmos_write(RTC_CONTROL_DEFAULT, RTC_CONTROL);
-	/* Setup the frequency it operates at */
-	cmos_write(RTC_FREQ_SELECT_DEFAULT, RTC_FREQ_SELECT);
-	/* Ensure all reserved bits are 0 in register D */
-	cmos_write(RTC_VRT, RTC_VALID);
-
-	if (IS_ENABLED(CONFIG_USE_OPTION_TABLE)) {
-		/* See if there is a LB CMOS checksum error */
-		checksum_invalid = !cmos_checksum_valid(LB_CKS_RANGE_START,
-				LB_CKS_RANGE_END,LB_CKS_LOC);
-		if (checksum_invalid)
-			printk(BIOS_DEBUG, "RTC: coreboot checksum invalid\n");
-
-		/* Make certain we have a valid checksum */
-		cmos_set_checksum(PC_CKS_RANGE_START, PC_CKS_RANGE_END, PC_CKS_LOC);
-	}
-
-	/* Clear any pending interrupts */
-	cmos_read(RTC_INTR_FLAGS);
-}
-#endif	/* __SMM__ */
-
-
-/*
- * This routine returns the value of the requested bits.
- * input bit = bit count from the beginning of the cmos image
- * length = number of bits to include in the value
- * ret = a character pointer to where the value is to be returned
- * returns CB_SUCCESS = successful, cb_err code if an error occurred
- */
-static enum cb_err get_cmos_value(unsigned long bit, unsigned long length,
-				  void *vret)
-{
-	unsigned char *ret;
-	unsigned long byte,byte_bit;
-	unsigned long i;
-	unsigned char uchar;
-
-	/*
-	 * The table is checked when it is built to ensure all
-	 * values are valid.
-	 */
-	ret = vret;
-	byte = bit / 8;	/* find the byte where the data starts */
-	byte_bit = bit % 8; /* find the bit in the byte where the data starts */
-	if (length < 9) {	/* one byte or less */
-		uchar = cmos_read(byte); /* load the byte */
-		uchar >>= byte_bit;	/* shift the bits to byte align */
-		/* clear unspecified bits */
-		ret[0] = uchar & ((1 << length) - 1);
-	} else {	/* more that one byte so transfer the whole bytes */
-		for (i = 0; length; i++, length -= 8, byte++) {
-			/* load the byte */
-			ret[i] = cmos_read(byte);
-		}
-	}
-	return CB_SUCCESS;
-}
-
-enum cb_err get_option(void *dest, const char *name)
-{
-	struct cmos_option_table *ct;
-	struct cmos_entries *ce;
-	size_t namelen;
-	int found = 0;
-
-	if (!IS_ENABLED(CONFIG_USE_OPTION_TABLE))
-		return CB_CMOS_OTABLE_DISABLED;
-
-	LOCK_NVRAM_CBFS_SPINLOCK
-
-	/* Figure out how long name is */
-	namelen = strnlen(name, CMOS_MAX_NAME_LENGTH);
-
-	/* find the requested entry record */
-	ct = cbfs_boot_map_with_leak("cmos_layout.bin",
-					CBFS_COMPONENT_CMOS_LAYOUT, NULL);
-	if (!ct) {
-		printk(BIOS_ERR, "RTC: cmos_layout.bin could not be found. "
-						"Options are disabled\n");
-
-		UNLOCK_NVRAM_CBFS_SPINLOCK
-		return CB_CMOS_LAYOUT_NOT_FOUND;
-	}
-	ce = (struct cmos_entries*)((unsigned char *)ct + ct->header_length);
-	for(; ce->tag == LB_TAG_OPTION;
-		ce = (struct cmos_entries*)((unsigned char *)ce + ce->size)) {
-		if (memcmp(ce->name, name, namelen) == 0) {
-			found = 1;
-			break;
-		}
-	}
-	if (!found) {
-		printk(BIOS_DEBUG, "WARNING: No CMOS option '%s'.\n", name);
-		UNLOCK_NVRAM_CBFS_SPINLOCK
-		return CB_CMOS_OPTION_NOT_FOUND;
-	}
-
-	if (get_cmos_value(ce->bit, ce->length, dest) != CB_SUCCESS) {
-		UNLOCK_NVRAM_CBFS_SPINLOCK
-		return CB_CMOS_ACCESS_ERROR;
-	}
-	if (!cmos_checksum_valid(LB_CKS_RANGE_START, LB_CKS_RANGE_END, LB_CKS_LOC)) {
-		UNLOCK_NVRAM_CBFS_SPINLOCK
-		return CB_CMOS_CHECKSUM_INVALID;
-	}
-	UNLOCK_NVRAM_CBFS_SPINLOCK
-	return CB_SUCCESS;
-}
-
-static enum cb_err set_cmos_value(unsigned long bit, unsigned long length,
-				  void *vret)
-{
-	unsigned char *ret;
-	unsigned long byte,byte_bit;
-	unsigned long i;
-	unsigned char uchar, mask;
-	unsigned int chksum_update_needed = 0;
-
-	ret = vret;
-	byte = bit / 8;		/* find the byte where the data starts */
-	byte_bit = bit % 8;	/* find the bit where the data starts */
-	if (length <= 8) {	/* one byte or less */
-		mask = (1 << length) - 1;
-		mask <<= byte_bit;
-
-		uchar = cmos_read(byte);
-		uchar &= ~mask;
-		uchar |= (ret[0] << byte_bit);
-		cmos_write(uchar, byte);
-		if (byte >= LB_CKS_RANGE_START && byte <= LB_CKS_RANGE_END)
-			chksum_update_needed = 1;
-	} else { /* more that one byte so transfer the whole bytes */
-		if (byte_bit || length % 8)
-			return CB_ERR_ARG;
-
-		for (i = 0; length; i++, length -= 8, byte++)
-			cmos_write(ret[i], byte);
-			if (byte >= LB_CKS_RANGE_START &&
-			    byte <= LB_CKS_RANGE_END)
-				chksum_update_needed = 1;
-	}
-
-	if (chksum_update_needed) {
-		cmos_set_checksum(LB_CKS_RANGE_START, LB_CKS_RANGE_END,
-				  LB_CKS_LOC);
-	}
-	return CB_SUCCESS;
-}
-
-
-enum cb_err set_option(const char *name, void *value)
-{
-	struct cmos_option_table *ct;
-	struct cmos_entries *ce;
-	unsigned long length;
-	size_t namelen;
-	int found = 0;
-
-	if (!IS_ENABLED(CONFIG_USE_OPTION_TABLE))
-		return CB_CMOS_OTABLE_DISABLED;
-
-	/* Figure out how long name is */
-	namelen = strnlen(name, CMOS_MAX_NAME_LENGTH);
-
-	/* find the requested entry record */
-	ct = cbfs_boot_map_with_leak("cmos_layout.bin",
-					CBFS_COMPONENT_CMOS_LAYOUT, NULL);
-	if (!ct) {
-		printk(BIOS_ERR, "cmos_layout.bin could not be found. "
-				 "Options are disabled\n");
-		return CB_CMOS_LAYOUT_NOT_FOUND;
-	}
-	ce = (struct cmos_entries*)((unsigned char *)ct + ct->header_length);
-	for(; ce->tag == LB_TAG_OPTION;
-		ce = (struct cmos_entries*)((unsigned char *)ce + ce->size)) {
-		if (memcmp(ce->name, name, namelen) == 0) {
-			found = 1;
-			break;
-		}
-	}
-	if (!found) {
-		printk(BIOS_DEBUG, "WARNING: No CMOS option '%s'.\n", name);
-		return CB_CMOS_OPTION_NOT_FOUND;
-	}
-
-	length = ce->length;
-	if (ce->config == 's') {
-		length = MAX(strlen((const char *)value) * 8, ce->length - 8);
-		/* make sure the string is null terminated */
-		if (set_cmos_value(ce->bit + ce->length - 8, 8, &(u8[]){0})
-		    != CB_SUCCESS)
-			return (CB_CMOS_ACCESS_ERROR);
-	}
-
-	if (set_cmos_value(ce->bit, length, value) != CB_SUCCESS)
-		return (CB_CMOS_ACCESS_ERROR);
-
-	return CB_SUCCESS;
-}
-
-/*
- * If the CMOS is cleared, the rtc_reg has the invalid date. That
- * hurts some OSes. Even if we don't set USE_OPTION_TABLE, we need
- * to make sure the date is valid.
- */
-void cmos_check_update_date()
-{
-	u8 year, century;
-
-	/* Assume hardware always supports RTC_CLK_ALTCENTURY. */
-	century = cmos_read(RTC_CLK_ALTCENTURY);
-	year = cmos_read(RTC_CLK_YEAR);
-
-	/*
-	 * TODO: If century is 0xFF, 100% that the cmos is cleared.
-	 * Other than that, so far rtc_year is the only entry to check
-	 * if the date is valid.
-	 */
-	if (century > 0x99 || year > 0x99) /* Invalid date */
-		cmos_reset_date();
-}
-
-int rtc_set(const struct rtc_time *time){
-	cmos_write(bin2bcd(time->sec), RTC_CLK_SECOND);
-	cmos_write(bin2bcd(time->min), RTC_CLK_MINUTE);
-	cmos_write(bin2bcd(time->hour), RTC_CLK_HOUR);
-	cmos_write(bin2bcd(time->mday), RTC_CLK_DAYOFMONTH);
-	cmos_write(bin2bcd(time->mon), RTC_CLK_MONTH);
-	cmos_write(bin2bcd(time->year % 100), RTC_CLK_YEAR);
-	/* Same assumption as above: We always have RTC_CLK_ALTCENTURY */
-	cmos_write(bin2bcd(time->year / 100), RTC_CLK_ALTCENTURY);
-	cmos_write(bin2bcd(time->wday + 1), RTC_CLK_DAYOFWEEK);
-	return 0;
-}
-
-int rtc_get(struct rtc_time *time)
-{
-	time->sec = bcd2bin(cmos_read(RTC_CLK_SECOND));
-	time->min = bcd2bin(cmos_read(RTC_CLK_MINUTE));
-	time->hour = bcd2bin(cmos_read(RTC_CLK_HOUR));
-	time->mday = bcd2bin(cmos_read(RTC_CLK_DAYOFMONTH));
-	time->mon = bcd2bin(cmos_read(RTC_CLK_MONTH));
-	time->year = bcd2bin(cmos_read(RTC_CLK_YEAR));
-	/* Same assumption as above: We always have RTC_CLK_ALTCENTURY */
-	time->year += bcd2bin(cmos_read(RTC_CLK_ALTCENTURY)) * 100;
-	time->wday = bcd2bin(cmos_read(RTC_CLK_DAYOFWEEK)) - 1;
-	return 0;
-}