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>
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@ -17,10 +17,6 @@
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## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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##
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# needed for system_clock_init()
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bootblock-y += mainboard.c
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bootblock-y += memory.c
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romstage-y += mainboard.c
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romstage-y += memory.c
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romstage-y += romstage.c
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@ -23,23 +23,14 @@
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#include <cbfs.h>
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#include <uart.h>
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#include <console/console.h>
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#include <cpu/samsung/exynos5250/clk.h>
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#include <cpu/samsung/exynos5250/dmc.h>
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#include <cpu/samsung/exynos5250/periph.h>
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#include <cpu/samsung/exynos5250/clock_init.h>
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#include <cpu/samsung/exynos5250/pinmux.h>
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#endif
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void bootblock_mainboard_init(void);
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void bootblock_mainboard_init(void)
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{
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struct mem_timings *mem;
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struct arm_clk_ratios *arm_ratios;
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mem = get_mem_timings();
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arm_ratios = get_arm_clk_ratios();
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system_clock_init(mem, arm_ratios);
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#if CONFIG_EARLY_SERIAL_CONSOLE
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exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
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uart_init();
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@ -26,6 +26,7 @@
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#include <cpu/samsung/exynos5250/dmc.h>
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#include <cpu/samsung/exynos5250/setup.h>
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#include <cpu/samsung/exynos5250/clock_init.h>
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#include <console/console.h>
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#include <arch/stages.h>
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@ -48,13 +49,19 @@ static int board_wakeup_permitted(void)
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void main(void)
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{
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struct mem_timings *mem;
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struct arm_clk_ratios *arm_ratios;
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int ret;
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void *entry;
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/* Clock must be initialized before console_init, otherwise you may need
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* to re-initialize serial console drivers again. */
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mem = get_mem_timings();
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arm_ratios = get_arm_clk_ratios();
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system_clock_init(mem, arm_ratios);
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console_init();
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printk(BIOS_INFO, "hello from romstage\n");
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mem = get_mem_timings();
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if (!mem) {
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printk(BIOS_CRIT, "Unable to auto-detect memory timings\n");
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while(1);
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