diff options
author | Stefan Reinauer <reinauer@chromium.org> | 2013-05-14 13:32:33 -0700 |
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committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-07-10 02:41:23 +0200 |
commit | b98dec032f0d8ee158e606bceef9766a905ad503 (patch) | |
tree | fce643a46c82ab71e3778a9c798fb4fac7702371 /src/cpu/samsung/exynos5250/cpu_info.c | |
parent | 043eb0e35f93b41348eb69061a6aa0355ef544bc (diff) |
samsung/exynos5250: unify code
It turns out that the exynos5-common code previously imported from
u-boot is not common code at all but very specific to the 5250 and
not compatible with the 5450. Hence, unify the directories exynos5250
and exynos5-common. We will try to factor out common code while
progressing with the 5450 port.
Change-Id: Iab595e66fcd01eda8365c96fb8bef896f7602f03
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3641
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/cpu/samsung/exynos5250/cpu_info.c')
-rw-r--r-- | src/cpu/samsung/exynos5250/cpu_info.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5250/cpu_info.c b/src/cpu/samsung/exynos5250/cpu_info.c new file mode 100644 index 0000000000..498ed85a13 --- /dev/null +++ b/src/cpu/samsung/exynos5250/cpu_info.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2009 Samsung Electronics + * Minkyu Kang <mk7.kang@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 <console/console.h> +#include <common.h> +#include <arch/io.h> + +#include <cpu/samsung/exynos5250/clk.h> +#include <cpu/samsung/exynos5250/clock.h> +#include <cpu/samsung/exynos5250/cpu.h> +#include <cpu/samsung/exynos5250/dmc.h> + +/* FIXME(dhendrix): consolidate samsung ID code/#defines to a common location */ +#include <cpu/samsung/exynos5250/setup.h> /* cpu_info_init() prototype */ + +static unsigned int s5p_cpu_id; +static unsigned int s5p_cpu_rev; + +static void s5p_set_cpu_id(void) +{ + s5p_cpu_id = readl((void *)EXYNOS_PRO_ID); + s5p_cpu_id = (0xC000 | ((s5p_cpu_id & 0x00FFF000) >> 12)); + + /* + * 0xC200: EXYNOS4210 EVT0 + * 0xC210: EXYNOS4210 EVT1 + */ + if (s5p_cpu_id == 0xC200) { + s5p_cpu_id |= 0x10; + s5p_cpu_rev = 0; + } else if (s5p_cpu_id == 0xC210) { + s5p_cpu_rev = 1; + } +} + +int arch_cpu_init(void) +{ + s5p_set_cpu_id(); + + printk(BIOS_INFO, "CPU: S5P%X @ %ldMHz\n", + s5p_cpu_id, get_arm_clk() / (1024*1024)); + + return 0; +} |