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path: root/drivers/tc/tc.c
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Diffstat (limited to 'drivers/tc/tc.c')
-rw-r--r--drivers/tc/tc.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/tc/tc.c b/drivers/tc/tc.c
index 3be9519654e5..0629f277f7b4 100644
--- a/drivers/tc/tc.c
+++ b/drivers/tc/tc.c
@@ -2,7 +2,7 @@
* TURBOchannel bus services.
*
* Copyright (c) Harald Koerfgen, 1998
- * Copyright (c) 2001, 2003, 2005, 2006 Maciej W. Rozycki
+ * Copyright (c) 2001, 2003, 2005, 2006, 2018 Maciej W. Rozycki
* Copyright (c) 2005 James Simmons
*
* This file is subject to the terms and conditions of the GNU
@@ -10,6 +10,7 @@
* directory of this archive for more details.
*/
#include <linux/compiler.h>
+#include <linux/dma-mapping.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/ioport.h>
@@ -46,7 +47,7 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus)
for (slot = 0; slot < tbus->num_tcslots; slot++) {
slotaddr = tbus->slot_base + slot * slotsize;
extslotaddr = tbus->ext_slot_base + slot * extslotsize;
- module = ioremap_nocache(slotaddr, slotsize);
+ module = ioremap(slotaddr, slotsize);
BUG_ON(!module);
offset = TC_OLDCARD;
@@ -92,6 +93,11 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus)
tdev->dev.bus = &tc_bus_type;
tdev->slot = slot;
+ /* TURBOchannel has 34-bit DMA addressing (16GiB space). */
+ tdev->dma_mask = DMA_BIT_MASK(34);
+ tdev->dev.dma_mask = &tdev->dma_mask;
+ tdev->dev.coherent_dma_mask = DMA_BIT_MASK(34);
+
for (i = 0; i < 8; i++) {
tdev->firmware[i] =
readb(module + offset + TC_FIRM_VER + 4 * i);
@@ -156,7 +162,7 @@ static int __init tc_init(void)
if (tc_bus.info.slot_size) {
unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000;
- pr_info("tc: TURBOchannel rev. %d at %d.%d MHz "
+ pr_info("tc: TURBOchannel rev. %d at %u.%u MHz "
"(with%s parity)\n", tc_bus.info.revision,
tc_clock / 10, tc_clock % 10,
tc_bus.info.parity ? "" : "out");