summaryrefslogtreecommitdiff
path: root/src/soc/nvidia/tegra124
diff options
context:
space:
mode:
authorAaron Durbin <adurbin@chromium.org>2014-09-25 10:05:15 -0500
committerPatrick Georgi <pgeorgi@google.com>2015-04-08 18:35:01 +0200
commite5e36306a9a5bf96ab8cc990d93bbd62030e635f (patch)
tree9ecc2fb162f97fa1e918f0830f2a49b183340280 /src/soc/nvidia/tegra124
parent23b4e4c4e80c0acd17c088c6bdde8c3bfccce898 (diff)
downloadcoreboot-e5e36306a9a5bf96ab8cc990d93bbd62030e635f.tar.xz
timer: Add generic udelay() implementation
Add GENERIC_UDELAY Kconfig option so that a generic udelay() implementation is provided utilizing the monotonic timer. That way each board/chipset doesn't need to duplicate the same udelay(). Additionally, assume that GENERIC_UDELAY implies init_timer() is not required. BUG=None BRANCH=None TEST=Built nyan, ryu, and rambi. May need help testing. Change-Id: I7f511a2324b5aa5d1b2959f4519be85a6a7360e8 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 1a85fbcad778933d13eaef545135abe7e4de46ed Original-Change-Id: Idd26de19eefc91ee3b0ceddfb1bc2152e19fd8ab Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/219719 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/9334 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc/nvidia/tegra124')
-rw-r--r--src/soc/nvidia/tegra124/Kconfig2
-rw-r--r--src/soc/nvidia/tegra124/Makefile.inc4
-rw-r--r--src/soc/nvidia/tegra124/timer.c53
3 files changed, 2 insertions, 57 deletions
diff --git a/src/soc/nvidia/tegra124/Kconfig b/src/soc/nvidia/tegra124/Kconfig
index 1680f4554c..3ce368b95f 100644
--- a/src/soc/nvidia/tegra124/Kconfig
+++ b/src/soc/nvidia/tegra124/Kconfig
@@ -7,6 +7,8 @@ config SOC_NVIDIA_TEGRA124
select ARCH_RAMSTAGE_ARMV7
select HAVE_UART_SPECIAL
select HAVE_HARD_RESET
+ select HAVE_MONOTONIC_TIMER
+ select GENERIC_UDELAY
select BOOTBLOCK_CONSOLE
select ARM_BOOTBLOCK_CUSTOM
select ARM_LPAE
diff --git a/src/soc/nvidia/tegra124/Makefile.inc b/src/soc/nvidia/tegra124/Makefile.inc
index 6de142d4ce..49669ebd83 100644
--- a/src/soc/nvidia/tegra124/Makefile.inc
+++ b/src/soc/nvidia/tegra124/Makefile.inc
@@ -15,7 +15,6 @@ bootblock-$(CONFIG_SOFTWARE_I2C) += ../tegra/software_i2c.c
bootblock-y += ../tegra/pingroup.c
bootblock-y += ../tegra/pinmux.c
bootblock-y += ../tegra/apbmisc.c
-bootblock-y += timer.c
ifeq ($(CONFIG_BOOTBLOCK_CONSOLE),y)
bootblock-$(CONFIG_DRIVERS_UART) += uart.c
endif
@@ -25,7 +24,6 @@ verstage-y += cbfs.c
verstage-y += dma.c
verstage-y += monotonic_timer.c
verstage-y += spi.c
-verstage-y += timer.c
verstage-$(CONFIG_DRIVERS_UART) += uart.c
verstage-y += ../tegra/gpio.c
verstage-y += ../tegra/i2c.c
@@ -48,7 +46,6 @@ romstage-y += ../tegra/gpio.c
romstage-y += ../tegra/i2c.c
romstage-$(CONFIG_SOFTWARE_I2C) += ../tegra/software_i2c.c
romstage-y += ../tegra/pinmux.c
-romstage-y += timer.c
romstage-y += cache.c
romstage-$(CONFIG_DRIVERS_UART) += uart.c
@@ -70,7 +67,6 @@ ramstage-y += ../tegra/i2c.c
ramstage-$(CONFIG_SOFTWARE_I2C) += ../tegra/software_i2c.c
ramstage-y += ../tegra/pinmux.c
ramstage-y += ../tegra/usb.c
-ramstage-y += timer.c
ramstage-$(CONFIG_DRIVERS_UART) += uart.c
rmodules_$(ARCH-romstage-y)-y += monotonic_timer.c
diff --git a/src/soc/nvidia/tegra124/timer.c b/src/soc/nvidia/tegra124/timer.c
deleted file mode 100644
index 83f499cbf1..0000000000
--- a/src/soc/nvidia/tegra124/timer.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2013 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <console/console.h>
-#include <timer.h>
-#include <delay.h>
-#include <thread.h>
-
-void init_timer(void)
-{
-}
-
-/* delay x useconds */
-void udelay(unsigned usec)
-{
- struct mono_time current, end;
-
- if (!thread_yield_microseconds(usec))
- return;
-
- timer_monotonic_get(&current);
- end = current;
- mono_time_add_usecs(&end, usec);
-
- if (mono_time_after(&current, &end)) {
- printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n",
- usec);
- /* There's not much we can do if usec is too big. Use a long,
- * paranoid delay value and hope for the best... */
- end = current;
- mono_time_add_usecs(&end, USECS_PER_SEC);
- }
-
- while (mono_time_before(&current, &end))
- timer_monotonic_get(&current);
-}
-