broadcom: Remove SoC and board support

The reason for this code cleanup is the legacy
Google Purin board which isn't available anymore
and AFAIK never made it into the stores.

* Remove broadcom cygnus SoC support
* Remove /util/broadcom tool
* Remove Google Purin mainboard
* Remove MAINTAINERS entries

Change-Id: I148dd7eb0192d396cb69bc26c4062f88a764771a
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/29905
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 0 insertions, 67 deletions

diff --git a/src/soc/broadcom/cygnus/timer.c b/src/soc/broadcom/cygnus/timer.c
deleted file mode 100644
index 78d996fb37..0000000000
--- a/src/soc/broadcom/cygnus/timer.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2015 Google Inc.
- *
- * 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/io.h>
-#include <delay.h>
-#include <soc/addressmap.h>
-#include <timer.h>
-
-#define TIMER_GLB_TIM_CTRL_PRESC_MASK	0x0000FF00
-#define TIMER_GLB_TIM_CTRL_TIM_EN	0x00000001
-#define TIMER_GLB_TIM_CTRL_PRESC	0x0
-/*
- * arm clk is 1GHz, periph_clk=arm_clk/2, tick per usec.
- * arm clk is set by the bootrom. See util/broadcom/unauth.cfg for details.
- */
-#define PERIPH_CLOCK			500
-#define CLOCKS_PER_USEC	(PERIPH_CLOCK / \
-	(((TIMER_GLB_TIM_CTRL_PRESC & TIMER_GLB_TIM_CTRL_PRESC_MASK) >> 8) + 1))
-
-struct cygnus_timer {
-	u32 gtim_glob_low;
-	u32 gtim_glob_hi;
-	u32 gtim_glob_ctrl;
-};
-
-static struct cygnus_timer * const timer_ptr =
-		(void *)IPROC_PERIPH_GLB_TIM_REG_BASE;
-
-static inline uint64_t timer_raw_value(void)
-{
-	uint64_t cur_tick;
-	uint32_t count_h;
-	uint32_t count_l;
-
-	do {
-		count_h = read32(&timer_ptr->gtim_glob_hi);
-		count_l = read32(&timer_ptr->gtim_glob_low);
-		cur_tick = read32(&timer_ptr->gtim_glob_hi);
-	} while (cur_tick != count_h);
-
-	return (cur_tick << 32) + count_l;
-}
-
-void timer_monotonic_get(struct mono_time *mt)
-{
-	mono_time_set_usecs(mt, timer_raw_value() / CLOCKS_PER_USEC);
-}
-
-void init_timer(void)
-{
-	write32(&timer_ptr->gtim_glob_ctrl, TIMER_GLB_TIM_CTRL_PRESC);
-	write32(&timer_ptr->gtim_glob_low, 0);
-	write32(&timer_ptr->gtim_glob_hi, 0);
-	write32(&timer_ptr->gtim_glob_ctrl, TIMER_GLB_TIM_CTRL_TIM_EN);
-}