From 013c91f9f6699cfefcda0d0745db7bd999d7cdb5 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Thu, 5 Nov 2015 13:16:55 -0600 Subject: [PATCH 03/45] mainboard/asus/kgpe-d16: Enable romstage spinlocks Change-Id: Iac1adbeacdcded7faff2443b78a491cbb8a90fe8 Signed-off-by: Timothy Pearson --- src/mainboard/asus/kgpe-d16/Kconfig | 1 + src/mainboard/asus/kgpe-d16/romstage.c | 20 +++++++++++++++----- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/src/mainboard/asus/kgpe-d16/Kconfig b/src/mainboard/asus/kgpe-d16/Kconfig index c4f3962..67b43ca 100644 --- a/src/mainboard/asus/kgpe-d16/Kconfig +++ b/src/mainboard/asus/kgpe-d16/Kconfig @@ -14,6 +14,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy select SOUTHBRIDGE_AMD_SUBTYPE_SP5100 select SUPERIO_NUVOTON_NCT5572D select PARALLEL_CPU_INIT + select HAVE_ROMSTAGE_CONSOLE_SPINLOCK select HAVE_HARD_RESET select HAVE_OPTION_TABLE select HAVE_CMOS_DEFAULT diff --git a/src/mainboard/asus/kgpe-d16/romstage.c b/src/mainboard/asus/kgpe-d16/romstage.c index df76ab4..13eacd2 100644 --- a/src/mainboard/asus/kgpe-d16/romstage.c +++ b/src/mainboard/asus/kgpe-d16/romstage.c @@ -312,6 +312,18 @@ static void execute_memory_test(void) } #endif +static spinlock_t printk_spinlock CAR_GLOBAL; + +spinlock_t* romstage_console_lock(void) +{ + return car_get_var_ptr(&printk_spinlock); +} + +void initialize_romstage_console_lock(void) +{ + car_get_var(printk_spinlock) = SPIN_LOCK_UNLOCKED; +} + void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) { uint32_t esp; @@ -338,6 +350,9 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) timestamp_init(timestamp_get()); timestamp_add_now(TS_START_ROMSTAGE); + /* Initialize the printk spinlock */ + initialize_romstage_console_lock(); + /* Nothing special needs to be done to find bus 0 */ /* Allow the HT devices to be found */ set_bsp_node_CHtExtNodeCfgEn(); @@ -407,11 +422,6 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) post_code(0x36); /* Wait for all the APs core0 started by finalize_node_setup. */ - /* FIXME: A bunch of cores are going to start output to serial at once. - * It would be nice to fix up prink spinlocks for ROM XIP mode. - * I think it could be done by putting the spinlock flag in the cache - * of the BSP located right after sysinfo. - */ wait_all_core0_started(); /* run _early_setup before soft-reset. */ -- 2.1.4