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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-15 02:27:45 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-15 02:27:45 +0400
commitcebfa85eb86d92bf85d3b041c6b044184517a988 (patch)
treebe0a374556fe335ce96dfdb296c89537750d5868 /arch/mips/lantiq/xway/dma.c
parentd42b3a2906a10b732ea7d7f849d49be79d242ef0 (diff)
parent241738bd51cb0efe58e6c570223153e970afe3ae (diff)
downloadlinux-cebfa85eb86d92bf85d3b041c6b044184517a988.tar.xz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: "The MIPS bits for 3.8. This also includes a bunch fixes that were sitting in the linux-mips.org git tree for a long time. This pull request contains updates to several OCTEON drivers and the board support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B, updates to the SSB bus support, MIPS kexec code and adds support for kdump. When pulling this, there are two expected merge conflicts in include/linux/bcma/bcma_driver_chipcommon.h which are trivial to resolve, just remove the conflict markers and keep both alternatives." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits) MIPS: PMC-Sierra Yosemite: Remove support. VIDEO: Newport Fix console crashes MIPS: wrppmc: Fix build of PCI code. MIPS: IP22/IP28: Fix build of EISA code. MIPS: RB532: Fix build of prom code. MIPS: PowerTV: Fix build. MIPS: IP27: Correct fucked grammar in ops-bridge.c MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled MIPS: Fix potencial corruption MIPS: Fix for warning from FPU emulation code MIPS: Handle COP3 Unusable exception as COP1X for FP emulation MIPS: Fix poweroff failure when HOTPLUG_CPU configured. MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y MIPS: Remove unused smvp.h MIPS/EDAC: Improve OCTEON EDAC support. MIPS: OCTEON: Add definitions for OCTEON memory contoller registers. MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian. MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree. MIPS: Remove usage of CEVT_R4K_LIB config option. ...
Diffstat (limited to 'arch/mips/lantiq/xway/dma.c')
-rw-r--r--arch/mips/lantiq/xway/dma.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 55d2c4fa4714..6453962ac898 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -25,6 +25,7 @@
#include <lantiq_soc.h>
#include <xway_dma.h>
+#define LTQ_DMA_ID 0x08
#define LTQ_DMA_CTRL 0x10
#define LTQ_DMA_CPOLL 0x14
#define LTQ_DMA_CS 0x18
@@ -48,7 +49,7 @@
#define DMA_CLK_DIV4 BIT(6) /* polling clock divider */
#define DMA_2W_BURST BIT(1) /* 2 word burst length */
#define DMA_MAX_CHANNEL 20 /* the soc has 20 channels */
-#define DMA_ETOP_ENDIANESS (0xf << 8) /* endianess swap etop channels */
+#define DMA_ETOP_ENDIANNESS (0xf << 8) /* endianness swap etop channels */
#define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */
#define ltq_dma_r32(x) ltq_r32(ltq_dma_membase + (x))
@@ -191,10 +192,10 @@ ltq_dma_init_port(int p)
switch (p) {
case DMA_PORT_ETOP:
/*
- * Tell the DMA engine to swap the endianess of data frames and
+ * Tell the DMA engine to swap the endianness of data frames and
* drop packets if the channel arbitration fails.
*/
- ltq_dma_w32_mask(0, DMA_ETOP_ENDIANESS | DMA_PDEN,
+ ltq_dma_w32_mask(0, DMA_ETOP_ENDIANNESS | DMA_PDEN,
LTQ_DMA_PCTRL);
break;
@@ -214,6 +215,7 @@ ltq_dma_init(struct platform_device *pdev)
{
struct clk *clk;
struct resource *res;
+ unsigned id;
int i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -243,7 +245,12 @@ ltq_dma_init(struct platform_device *pdev)
ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL);
ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL);
}
- dev_info(&pdev->dev, "init done\n");
+
+ id = ltq_dma_r32(LTQ_DMA_ID);
+ dev_info(&pdev->dev,
+ "Init done - hw rev: %X, ports: %d, channels: %d\n",
+ id & 0x1f, (id >> 16) & 0xf, id >> 20);
+
return 0;
}