Home » Mailing list archives » git-commits-head » 2008 » January » 31

[POWERPC] Add of_translate_dma_address

Previous thread: [POWERPC] 83xx: Add platform support for MPC837x MDS board by Linux Kernel Mailing List on Wednesday, January 30, 2008 - 8:00 pm. (1 message)

Next thread: [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h by Linux Kernel Mailing List on Wednesday, January 30, 2008 - 8:00 pm. (1 message)
[view original message]
From: Linux Kernel Mailing List
Subject: [POWERPC] Add of_translate_dma_address
Date: Wednesday, January 30, 2008 - 7:59 pm

Gitweb:     http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=837c54...
Commit:     837c54db21fc7047af75f3fe4295e32106449e34
Parent:     f276b5ba0d87eba4ce7aace9608d811776734cb5
Author:     Benjamin Herrenschmidt <benh@kernel.crashing.org>
AuthorDate: Tue Dec 11 14:48:22 2007 +1100
Committer:  Paul Mackerras <paulus@samba.org>
CommitDate: Tue Dec 11 15:43:35 2007 +1100

    [POWERPC] Add of_translate_dma_address
    
    This adds a variant of of_translate_address that uses the dma-ranges
    property instead of "ranges", it's to be used by PCI code in parsing
    the dma-ranges property.
    
    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/prom_parse.c |   20 ++++++++++++++++----
 include/asm-powerpc/prom.h       |    4 ++++
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 6bdfaf3..90eb3a3 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -419,7 +419,7 @@ static struct of_bus *of_match_bus(struct device_node *np)
 
 static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 			    struct of_bus *pbus, u32 *addr,
-			    int na, int ns, int pna)
+			    int na, int ns, int pna, const char *rprop)
 {
 	const u32 *ranges;
 	unsigned int rlen;
@@ -438,7 +438,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 	 * to translate addresses that aren't supposed to be translated in
 	 * the first place. --BenH.
 	 */
-	ranges = of_get_property(parent, "ranges", &rlen);
+	ranges = of_get_property(parent, rprop, &rlen);
 	if (ranges == NULL || rlen == 0) {
 		offset = of_read_number(addr, na);
 		memset(addr, 0, pna * 4);
@@ -481,7 +481,8 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
  * that can be mapped to a cpu ...
[ message continues ]
Previous thread: [POWERPC] 83xx: Add platform support for MPC837x MDS board by Linux Kernel Mailing List on Wednesday, January 30, 2008 - 8:00 pm. (1 message)

Next thread: [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h by Linux Kernel Mailing List on Wednesday, January 30, 2008 - 8:00 pm. (1 message)