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authorDavid Hendricks <dhendrix@chromium.org>2013-01-10 15:05:22 -0800
committerRonald G. Minnich <rminnich@gmail.com>2013-01-11 01:45:12 +0100
commiteb5e252ce16acd80e5374a351d49e9d90cfed982 (patch)
treecf51e25bfb1270bdb1928903df0fc9daac564214 /src
parentb9fb213f85b9a6c76253c21504c6bfe838670de7 (diff)
exynos5250: Hacked up lowlevel_init_c
This is the first lowlevel init routine that gets called in romstage. It's fugly and needs a lot of clean-up, but does the job for now. Change-Id: Id54bf4f1c3753bcbed5f6b5eeb4b48bc3b41ce93 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2133 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/cpu/samsung/exynos5250/lowlevel_init_c.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/src/cpu/samsung/exynos5250/lowlevel_init_c.c b/src/cpu/samsung/exynos5250/lowlevel_init_c.c
index 2215fb7a95..848ebee4a8 100644
--- a/src/cpu/samsung/exynos5250/lowlevel_init_c.c
+++ b/src/cpu/samsung/exynos5250/lowlevel_init_c.c
@@ -36,6 +36,7 @@
#include <cpu/samsung/exynos5250/tzpc.h>
#include "setup.h"
+#include <console/console.h>
void do_barriers(void); /* FIXME: make gcc shut up about "no previous prototype" */
@@ -70,14 +71,15 @@ enum {
int lowlevel_init_subsystems(void)
{
- uint32_t reset_status;
+// uint32_t reset_status;
int actions = 0;
- do_barriers();
+// do_barriers();
/* Setup cpu info which is needed to select correct register offsets */
cpu_info_init();
+#if 0
reset_status = power_read_reset_status();
switch (reset_status) {
@@ -91,24 +93,28 @@ int lowlevel_init_subsystems(void)
/* This is a normal boot (not a wake from sleep) */
actions = DO_UART | DO_CLOCKS | DO_POWER;
}
+#endif
+ actions = DO_UART | DO_CLOCKS | DO_POWER;
if (actions & DO_POWER)
power_init();
if (actions & DO_CLOCKS)
system_clock_init();
if (actions & DO_UART) {
+
/* Set up serial UART so we can printf() */
-// exynos_pinmux_config(EXYNOS_UART, PINMUX_FLAG_NONE);
/* FIXME(dhendrix): add a function for mapping
CONFIG_CONSOLE_SERIAL_UART_ADDRESS to PERIPH_ID_UARTn */
+// exynos_pinmux_config(EXYNOS_UART, PINMUX_FLAG_NONE);
exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
- /* FIXME(dhendrix): serial_init() does not seem to
- actually do anything !?!? */
-// serial_init();
- init_timer(); /* FIXME(dhendrix): was timer_init() */
+
+ console_init();
+ while (1) {
+ console_tx_byte('C');
+ }
}
+ init_timer(); /* FIXME(dhendrix): was timer_init() */
-/* FIXME(dhendrix): place this somewhere for ramstage... */
#if 0
if (actions & DO_CLOCKS) {
mem_ctrl_init();
@@ -116,5 +122,6 @@ int lowlevel_init_subsystems(void)
}
#endif
- return actions & DO_WAKEUP;
+// return actions & DO_WAKEUP;
+ return 0;
}