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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 20:50:19 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 20:50:19 +0200
commitdf6d3916f3b7b7e2067567a256dd4f0c1ea854a2 (patch)
tree0fdeab1ab5d566605fc99aeb5ea3f621f11e7608 /arch/powerpc/kernel/udbg_16550.c
parentRemove unused variable in get_unmapped_area (diff)
parent[POWERPC] Abolish powerpc_flash_init() (diff)
downloadlinux-df6d3916f3b7b7e2067567a256dd4f0c1ea854a2.tar.xz
linux-df6d3916f3b7b7e2067567a256dd4f0c1ea854a2.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (77 commits) [POWERPC] Abolish powerpc_flash_init() [POWERPC] Early serial debug support for PPC44x [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc [POWERPC] Add device tree for Ebony [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now [POWERPC] MPIC U3/U4 MSI backend [POWERPC] MPIC MSI allocator [POWERPC] Enable MSI mappings for MPIC [POWERPC] Tell Phyp we support MSI [POWERPC] RTAS MSI implementation [POWERPC] PowerPC MSI infrastructure [POWERPC] Rip out the existing powerpc msi stubs [POWERPC] Remove use of 4level-fixup.h for ppc32 [POWERPC] Add powerpc PCI-E reset API implementation [POWERPC] Holly bootwrapper [POWERPC] Holly DTS [POWERPC] Holly defconfig [POWERPC] Add support for 750CL Holly board [POWERPC] Generalize tsi108 PCI setup [POWERPC] Generalize tsi108 PHY types ... Fixed conflict in include/asm-powerpc/kdebug.h manually Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/kernel/udbg_16550.c')
-rw-r--r--arch/powerpc/kernel/udbg_16550.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index a963f657222b..7afab5bcd61a 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -191,3 +191,26 @@ void udbg_init_pas_realmode(void)
udbg_getc_poll = NULL;
}
#endif /* CONFIG_PPC_MAPLE */
+
+#ifdef CONFIG_PPC_EARLY_DEBUG_44x
+#include <platforms/44x/44x.h>
+
+static void udbg_44x_as1_putc(char c)
+{
+ if (udbg_comport) {
+ while ((as1_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
+ /* wait for idle */;
+ as1_writeb(c, &udbg_comport->thr); eieio();
+ if (c == '\n')
+ udbg_44x_as1_putc('\r');
+ }
+}
+
+void __init udbg_init_44x_as1(void)
+{
+ udbg_comport =
+ (volatile struct NS16550 __iomem *)PPC44x_EARLY_DEBUG_VIRTADDR;
+
+ udbg_putc = udbg_44x_as1_putc;
+}
+#endif /* CONFIG_PPC_EARLY_DEBUG_44x */