GNUBoot/coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
coreboot-kgpe-d16/src/mainboard/google/snow/bootblock.c

44 lines
1.4 KiB
C
Raw Normal View History

Snow bootblock (bloated/debug version) This is the bloated Snow bootblock which includes: - SPI driver - UART, including requisite I2C, Maxim PMIC, and clock config code. - Adjustments for magic offsets (id section, stack pointer address) This is just a temporary solution until we have romstage loading. Once that happens, we'll rip out all but the code necessary for copying SPI ROM content into SRAM. Change-Id: I2a11e272eb9b6f626b5d9783eabb4a720a1d06be Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2170 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-18 00:07:35 +01:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 The ChromiumOS Authors. All rights reserved.
*
* 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 <types.h>
#include <arch/io.h>
armv7/snow: Move clock initialization from bootblock to romstage. Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Note: this patch was originally introduced in 2308, but there were some ordering issues so it was reverted. Change-Id: Ibc91c0e26ea8881751fc088754f5c6161d011b68 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2320 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-07 14:38:41 +01:00
#include <cbfs.h>
#include <uart.h>
Exynos5250: add a microsecond timer Add a microsecond timer, its declaration, the function to start it, and its usage. To start it, one calls timer_start(). From that point on, one can call timer_us() to find microseconds since the timer was started. We show its use in the bootblock. You want it started very early. Finally, the delay.h change having been (ironically) delayed, we create time.h and have it hold one declaration, for the timer_us() and timer_start() prototype. We feel that these two functions should become the hardware specific functions, allowing us to finally move udelay() into src/lib where it belongs. Change-Id: I19cbc2bb0089a3de88cfb94276266af38b9363c5 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3073 Tested-by: build bot (Jenkins)
2013-04-12 00:03:28 +02:00
#include <time.h>
armv7: Use same console initialization procedure for all ARM stages Use same console initialization procedure for all ARM stages (bootblock, romstage, and ramstage): #include <console/console.h> ... console_init() ... printk(level, format, ...) Verified to boot on armv7/snow with console messages in all stages. Change-Id: Idd689219035e67450ea133838a2ca02f8d74557e Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2301 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-06 15:01:18 +01:00
#include <console/console.h>
armv7/snow: Move clock initialization from bootblock to romstage. Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Note: this patch was originally introduced in 2308, but there were some ordering issues so it was reverted. Change-Id: Ibc91c0e26ea8881751fc088754f5c6161d011b68 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2320 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-07 14:38:41 +01:00
#include <cpu/samsung/exynos5250/periph.h>
#include <cpu/samsung/exynos5250/pinmux.h>
Snow bootblock (bloated/debug version) This is the bloated Snow bootblock which includes: - SPI driver - UART, including requisite I2C, Maxim PMIC, and clock config code. - Adjustments for magic offsets (id section, stack pointer address) This is just a temporary solution until we have romstage loading. Once that happens, we'll rip out all but the code necessary for copying SPI ROM content into SRAM. Change-Id: I2a11e272eb9b6f626b5d9783eabb4a720a1d06be Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2170 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-18 00:07:35 +01:00
void bootblock_mainboard_init(void);
void bootblock_mainboard_init(void)
{
Exynos5250: add a microsecond timer Add a microsecond timer, its declaration, the function to start it, and its usage. To start it, one calls timer_start(). From that point on, one can call timer_us() to find microseconds since the timer was started. We show its use in the bootblock. You want it started very early. Finally, the delay.h change having been (ironically) delayed, we create time.h and have it hold one declaration, for the timer_us() and timer_start() prototype. We feel that these two functions should become the hardware specific functions, allowing us to finally move udelay() into src/lib where it belongs. Change-Id: I19cbc2bb0089a3de88cfb94276266af38b9363c5 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3073 Tested-by: build bot (Jenkins)
2013-04-12 00:03:28 +02:00
/* kick off the microsecond timer. We want to do this as early
* as we can.
*/
timer_start();
exynos/snow: move SPI GPIO setup to mainboard bootblock code This moves GPIO setup from chip-specific SPI code to mainboard- specific bootblock code. This makes exynos_spi_open a bit more generic so it can eventually be used for any SPI channel. This also benefits CBFS since the user can set media->context to to any set of SPI registers. Change-Id: I2bcb9de370df0a79353c14b4d021b471ddebfacd Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2347 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-10 02:24:17 +01:00
exynos_pinmux_config(PERIPH_ID_SPI1, PINMUX_FLAG_NONE);
armv7/snow: Move clock initialization from bootblock to romstage. Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Note: this patch was originally introduced in 2308, but there were some ordering issues so it was reverted. Change-Id: Ibc91c0e26ea8881751fc088754f5c6161d011b68 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2320 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-07 14:38:41 +01:00
#if CONFIG_EARLY_CONSOLE
snow: remove dead code from bootblock This attempts to clean out some dead code which was copy + pasted into Snow's bootblock.c file, along with some unnecessary headers. Change-Id: If9f157a52395a047c249a2a6385e0e8ddf310e59 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2291 Tested-by: build bot (Jenkins)
2013-02-06 00:24:54 +01:00
exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
armv7: Use same console initialization procedure for all ARM stages Use same console initialization procedure for all ARM stages (bootblock, romstage, and ramstage): #include <console/console.h> ... console_init() ... printk(level, format, ...) Verified to boot on armv7/snow with console messages in all stages. Change-Id: Idd689219035e67450ea133838a2ca02f8d74557e Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2301 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-06 15:01:18 +01:00
console_init();
armv7: Clean up arm/snow bootblock build process. Remove duplicated / testing code and share more driver for bootblock, romstage and ramstage. The __PRE_RAM__ is now also defined in bootblock build stage, since bootblock is executed before RAM is initialized. Change-Id: I4f5469b1545631eee1cf9f2f5df93cbe3a58268b Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2282 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-02-04 07:38:03 +01:00
printk(BIOS_INFO, "\n\n\n%s: UART initialized\n", __func__);
armv7/snow: Move clock initialization from bootblock to romstage. Exynos system clock can be initialized before RAM init, not necessary to be in the very beginning (boot block). This helps reducing bootblock dependency. Verified to boot on armv7/snow. Note: this patch was originally introduced in 2308, but there were some ordering issues so it was reverted. Change-Id: Ibc91c0e26ea8881751fc088754f5c6161d011b68 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2320 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-02-07 14:38:41 +01:00
#endif
Snow bootblock (bloated/debug version) This is the bloated Snow bootblock which includes: - SPI driver - UART, including requisite I2C, Maxim PMIC, and clock config code. - Adjustments for magic offsets (id section, stack pointer address) This is just a temporary solution until we have romstage loading. Once that happens, we'll rip out all but the code necessary for copying SPI ROM content into SRAM. Change-Id: I2a11e272eb9b6f626b5d9783eabb4a720a1d06be Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2170 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-18 00:07:35 +01:00
}
Reference in a new issue Copy permalink