diff options
author | Tom Rini <trini@ti.com> | 2013-07-12 10:36:48 -0400 |
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committer | Tom Rini <trini@ti.com> | 2013-07-12 10:36:48 -0400 |
commit | fbbbc86e8ebac4f42f4ca39ceba80cea27c983bc (patch) | |
tree | 9c91526cefd027d9bd964572d4f92bd2d1376c5d /arch/arm/cpu/armv7/exynos/lowlevel_init.c | |
parent | d72da1582895ca226b995758426ec3769b54a9b8 (diff) | |
parent | efc284e32503b240dbd35c6e8b8d098d702b4be7 (diff) | |
download | u-boot-imx-fbbbc86e8ebac4f42f4ca39ceba80cea27c983bc.zip u-boot-imx-fbbbc86e8ebac4f42f4ca39ceba80cea27c983bc.tar.gz u-boot-imx-fbbbc86e8ebac4f42f4ca39ceba80cea27c983bc.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Fix a trivial conflict in arch/arm/dts/exynos5250.dtsi about gpio and
serial.
Conflicts:
arch/arm/dts/exynos5250.dtsi
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/exynos/lowlevel_init.c')
-rw-r--r-- | arch/arm/cpu/armv7/exynos/lowlevel_init.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/lowlevel_init.c b/arch/arm/cpu/armv7/exynos/lowlevel_init.c new file mode 100644 index 0000000..11fe5b8 --- /dev/null +++ b/arch/arm/cpu/armv7/exynos/lowlevel_init.c @@ -0,0 +1,73 @@ +/* + * Lowlevel setup for EXYNOS5 based board + * + * Copyright (C) 2013 Samsung Electronics + * Rajeshwari Shinde <rajeshwari.s@samsung.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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; either version 2 of + * the License, or (at your option) any later version. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <config.h> +#include <asm/arch/cpu.h> +#include <asm/arch/dmc.h> +#include <asm/arch/power.h> +#include <asm/arch/tzpc.h> +#include <asm/arch/periph.h> +#include <asm/arch/pinmux.h> +#include "common_setup.h" + +/* These are the things we can do during low-level init */ +enum { + DO_WAKEUP = 1 << 0, + DO_CLOCKS = 1 << 1, + DO_MEM_RESET = 1 << 2, + DO_UART = 1 << 3, +}; + +int do_lowlevel_init(void) +{ + uint32_t reset_status; + int actions = 0; + + arch_cpu_init(); + + reset_status = get_reset_status(); + + switch (reset_status) { + case S5P_CHECK_SLEEP: + actions = DO_CLOCKS | DO_WAKEUP; + break; + case S5P_CHECK_DIDLE: + case S5P_CHECK_LPA: + actions = DO_WAKEUP; + break; + default: + /* This is a normal boot (not a wake from sleep) */ + actions = DO_CLOCKS | DO_MEM_RESET; + } + + if (actions & DO_CLOCKS) { + system_clock_init(); + mem_ctrl_init(actions & DO_MEM_RESET); + tzpc_init(); + } + + return actions & DO_WAKEUP; +} |