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, 103 deletions

diff --git a/src/drivers/pc80/mc146818rtc_early.c b/src/drivers/pc80/mc146818rtc_early.c
deleted file mode 100644
index 3ff5d4fb3e..0000000000
--- a/src/drivers/pc80/mc146818rtc_early.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#include <stdint.h>
-#include <pc80/mc146818rtc.h>
-#include <fallback.h>
-#if CONFIG_USE_OPTION_TABLE
-#include "option_table.h"
-#endif
-
-#if  CONFIG_MAX_REBOOT_CNT > 15
-#error "CONFIG_MAX_REBOOT_CNT too high"
-#endif
-
-static int cmos_error(void)
-{
-	unsigned char reg_d;
-	/* See if the cmos error condition has been flagged */
-	reg_d = cmos_read(RTC_REG_D);
-	return (reg_d & RTC_VRT) == 0;
-}
-
-static int cmos_chksum_valid(void)
-{
-#if CONFIG_USE_OPTION_TABLE
-	unsigned char addr;
-	u16 sum, old_sum;
-	sum = 0;
-	/* Compute the cmos checksum */
-	for(addr = LB_CKS_RANGE_START; addr <= LB_CKS_RANGE_END; addr++) {
-		sum += cmos_read(addr);
-	}
-
-	/* Read the stored checksum */
-	old_sum = cmos_read(LB_CKS_LOC) << 8;
-	old_sum |=  cmos_read(LB_CKS_LOC+1);
-
-	return sum == old_sum;
-#else
-	return 0;
-#endif
-}
-
-static inline __attribute__((unused)) int boot_count(uint8_t rtc_byte)
-{
-	return rtc_byte >> 4;
-}
-
-static inline __attribute__((unused)) uint8_t increment_boot_count(uint8_t rtc_byte)
-{
-	return rtc_byte + (1 << 4);
-}
-
-static inline __attribute__((unused)) uint8_t boot_set_fallback(uint8_t rtc_byte)
-{
-	return rtc_byte & ~RTC_BOOT_NORMAL;
-}
-
-static inline __attribute__((unused)) int boot_use_normal(uint8_t rtc_byte)
-{
-	return rtc_byte & RTC_BOOT_NORMAL;
-}
-
-static inline __attribute__((unused)) int do_normal_boot(void)
-{
-	unsigned char byte;
-
-	if (cmos_error() || !cmos_chksum_valid()) {
-		/* Invalid CMOS checksum detected!
-		 * Force fallback boot...
-		 */
-		byte = cmos_read(RTC_BOOT_BYTE);
-		byte &= boot_set_fallback(byte) & 0x0f;
-		byte |= 0xf << 4;
-		cmos_write(byte, RTC_BOOT_BYTE);
-	}
-
-	/* The RTC_BOOT_BYTE is now o.k. see where to go. */
-	byte = cmos_read(RTC_BOOT_BYTE);
-
-	/* Are we attempting to boot normally? */
-	if (boot_use_normal(byte)) {
-		/* Are we already at the max count? */
-		if (boot_count(byte) < CONFIG_MAX_REBOOT_CNT)
-			byte = increment_boot_count(byte);
-		else
-			byte = boot_set_fallback(byte);
-	}
-
-	/* Save the boot byte */
-	cmos_write(byte, RTC_BOOT_BYTE);
-
-	/* Return selected code path for this boot attempt */
-	return boot_use_normal(byte);
-}
-
-unsigned read_option_lowlevel(unsigned start, unsigned size, unsigned def)
-{
-#if CONFIG_USE_OPTION_TABLE
-	unsigned byte;
-	byte = cmos_read(start/8);
-	return (byte >> (start & 7U)) & ((1U << size) - 1U);
-#else
-	return def;
-#endif
-}