diff options
| author | Stefan Reinauer <stepan@openbios.org> | 2005-12-04 17:50:32 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2005-12-04 17:50:32 +0000 |
| commit | 453dfdfdafbc2d10ec9289699a22e8c4fd8c2ad6 (patch) | |
| tree | ed7e246a34073a368c8195bd0748fa9daffb4a01 | |
| parent | a09ab6dc531aa7d14706b6a912e5feb476426ab2 (diff) | |
implement io based udelay function for all mainboards that lack an apic
timer (or just failed otherwise due to missing udelay)
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2131 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
| -rw-r--r-- | src/config/Options.lb | 5 | ||||
| -rw-r--r-- | src/mainboard/densitron/dpx114/Options.lb | 6 | ||||
| -rw-r--r-- | src/mainboard/digitallogic/adl855pc/Options.lb | 6 | ||||
| -rw-r--r-- | src/mainboard/via/epia/Options.lb | 6 | ||||
| -rw-r--r-- | src/pc80/Config.lb | 5 | ||||
| -rw-r--r-- | src/pc80/udelay_io.c | 9 |
6 files changed, 37 insertions, 0 deletions
diff --git a/src/config/Options.lb b/src/config/Options.lb index 857dce8c69..61b85f37b7 100644 --- a/src/config/Options.lb +++ b/src/config/Options.lb @@ -784,6 +784,11 @@ define CONFIG_UDELAY_TSC export used comment "Implement udelay with the x86 time stamp counter" end +define CONFIG_UDELAY_IO + default 0 + export used + comment "Implement udelay with x86 io registers" +end define FAKE_SPDROM default 0 export always diff --git a/src/mainboard/densitron/dpx114/Options.lb b/src/mainboard/densitron/dpx114/Options.lb index 0b48b69260..2073c081e1 100644 --- a/src/mainboard/densitron/dpx114/Options.lb +++ b/src/mainboard/densitron/dpx114/Options.lb @@ -31,6 +31,7 @@ uses CROSS_COMPILE uses CC uses HOSTCC uses OBJCOPY +uses CONFIG_UDELAY_IO ## ROM_SIZE is the size of boot ROM that this board will use. default ROM_SIZE = 256*1024 @@ -55,6 +56,11 @@ default HAVE_MP_TABLE=0 default HAVE_HARD_RESET=1 ## +## use io based udelay function +## +default CONFIG_UDELAY_IO=1 + +## ## Build code to export a programmable irq routing table ## default HAVE_PIRQ_TABLE=1 diff --git a/src/mainboard/digitallogic/adl855pc/Options.lb b/src/mainboard/digitallogic/adl855pc/Options.lb index 9549c3def7..dc85a6ff17 100644 --- a/src/mainboard/digitallogic/adl855pc/Options.lb +++ b/src/mainboard/digitallogic/adl855pc/Options.lb @@ -6,6 +6,7 @@ uses HAVE_HARD_RESET uses HAVE_OPTION_TABLE uses USE_OPTION_TABLE uses CONFIG_ROM_STREAM +uses CONFIG_UDELAY_IO uses IRQ_SLOT_COUNT uses MAINBOARD uses MAINBOARD_VENDOR @@ -59,6 +60,11 @@ default HAVE_MP_TABLE=0 default HAVE_HARD_RESET=1 ## +## use io based udelay function +## +default CONFIG_UDELAY_IO=1 + +## ## Build code to export a programmable irq routing table ## default HAVE_PIRQ_TABLE=1 diff --git a/src/mainboard/via/epia/Options.lb b/src/mainboard/via/epia/Options.lb index 259acfbc24..97b5ad3859 100644 --- a/src/mainboard/via/epia/Options.lb +++ b/src/mainboard/via/epia/Options.lb @@ -10,6 +10,7 @@ uses HAVE_PIRQ_TABLE uses USE_FALLBACK_IMAGE uses HAVE_FALLBACK_BOOT uses HAVE_HARD_RESET +uses CONFIG_UDELAY_IO uses HAVE_OPTION_TABLE uses USE_OPTION_TABLE uses CONFIG_ROM_STREAM @@ -82,6 +83,11 @@ default HAVE_MP_TABLE=0 default HAVE_HARD_RESET=1 ## +## use io based udelay function +## +default CONFIG_UDELAY_IO=1 + +## ## Build code to export a programmable irq routing table ## default HAVE_PIRQ_TABLE=1 diff --git a/src/pc80/Config.lb b/src/pc80/Config.lb index 1750a83bde..7eb32b239f 100644 --- a/src/pc80/Config.lb +++ b/src/pc80/Config.lb @@ -1,11 +1,16 @@ uses CONFIG_IDE uses CONFIG_CONSOLE_VGA +uses CONFIG_UDELAY_IO object mc146818rtc.o object isa-dma.o object i8259.o #object udelay_timer2.o CONFIG_UDELAY_TIMER2 +if CONFIG_UDELAY_IO + object udelay_io.o +end + if CONFIG_IDE dir ide end diff --git a/src/pc80/udelay_io.c b/src/pc80/udelay_io.c new file mode 100644 index 0000000000..870af079cf --- /dev/null +++ b/src/pc80/udelay_io.c @@ -0,0 +1,9 @@ +#include <arch/io.h> + +void udelay(int usecs) +{ + int i; + for(i = 0; i < usecs; i++) + outb(i&0xff, 0x80); +} + |