diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2013-02-07 21:38:41 +0800 |
|---|---|---|
| committer | David Hendricks <dhendrix@chromium.org> | 2013-02-07 22:54:03 +0100 |
| commit | 9029f4b63f6d0e29bf1608e666cdb025de45ca24 (patch) | |
| tree | 74bb18d0fa2edd61745ee83425be2eb827f20ae8 /src/mainboard/google/snow | |
| parent | 632d6fe3fc8b71e00438bddf972ff2936447a03c (diff) | |
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.
Change-Id: Ic863e222871a157ba4279a673775b1e18c6eac0d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2308
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/mainboard/google/snow')
| -rw-r--r-- | src/mainboard/google/snow/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/mainboard/google/snow/bootblock.c | 11 | ||||
| -rw-r--r-- | src/mainboard/google/snow/romstage.c | 9 |
3 files changed, 9 insertions, 15 deletions
diff --git a/src/mainboard/google/snow/Makefile.inc b/src/mainboard/google/snow/Makefile.inc index 04bf543d40..b56a1a42cf 100644 --- a/src/mainboard/google/snow/Makefile.inc +++ b/src/mainboard/google/snow/Makefile.inc @@ -17,10 +17,6 @@ ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ## -# needed for system_clock_init() -bootblock-y += mainboard.c -bootblock-y += memory.c - romstage-y += mainboard.c romstage-y += memory.c romstage-y += romstage.c diff --git a/src/mainboard/google/snow/bootblock.c b/src/mainboard/google/snow/bootblock.c index bcfe440379..18306cc51c 100644 --- a/src/mainboard/google/snow/bootblock.c +++ b/src/mainboard/google/snow/bootblock.c @@ -23,23 +23,14 @@ #include <cbfs.h> #include <uart.h> #include <console/console.h> -#include <cpu/samsung/exynos5250/clk.h> -#include <cpu/samsung/exynos5250/dmc.h> #include <cpu/samsung/exynos5250/periph.h> -#include <cpu/samsung/exynos5250/clock_init.h> +#include <cpu/samsung/exynos5250/pinmux.h> #endif void bootblock_mainboard_init(void); void bootblock_mainboard_init(void) { - struct mem_timings *mem; - struct arm_clk_ratios *arm_ratios; - - mem = get_mem_timings(); - arm_ratios = get_arm_clk_ratios(); - system_clock_init(mem, arm_ratios); - #if CONFIG_EARLY_SERIAL_CONSOLE exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE); uart_init(); diff --git a/src/mainboard/google/snow/romstage.c b/src/mainboard/google/snow/romstage.c index b8e5116b22..c0bb6f4be0 100644 --- a/src/mainboard/google/snow/romstage.c +++ b/src/mainboard/google/snow/romstage.c @@ -26,6 +26,7 @@ #include <cpu/samsung/exynos5250/dmc.h> #include <cpu/samsung/exynos5250/setup.h> +#include <cpu/samsung/exynos5250/clock_init.h> #include <console/console.h> #include <arch/stages.h> @@ -48,13 +49,19 @@ static int board_wakeup_permitted(void) void main(void) { struct mem_timings *mem; + struct arm_clk_ratios *arm_ratios; int ret; void *entry; + /* Clock must be initialized before console_init, otherwise you may need + * to re-initialize serial console drivers again. */ + mem = get_mem_timings(); + arm_ratios = get_arm_clk_ratios(); + system_clock_init(mem, arm_ratios); + console_init(); printk(BIOS_INFO, "hello from romstage\n"); - mem = get_mem_timings(); if (!mem) { printk(BIOS_CRIT, "Unable to auto-detect memory timings\n"); while(1); |