adopt ti-edma3 driver to device driver model
Signed-off-by: Mugunthan V N <mugunthan...@ti.com>
---
drivers/dma/ti-edma3.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 73 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/ti-edma3.c b/drivers/dma/ti-edma3.c
index d6a427f..0eb8602 100644
--- a/drivers/dma/ti-edma3.c
+++ b/drivers/dma/ti-edma3.c
@@ -11,6 +11,9 @@
#include <asm/io.h>
#include <common.h>
+#include <dma.h>
+#include <dm/device.h>
+#include <asm/omap_common.h>
#include <asm/ti-common/ti-edma3.h>
#define EDMA3_SL_BASE(slot) (0x4000 + ((slot) << 5))
@@ -31,6 +34,11 @@
#define EDMA3_QEESR 0x108c
#define EDMA3_QSECR 0x1094
+/* ti qspi priv */
+struct ti_edma3_priv {
+ u32 base;
+};
+
/**
* qedma3_start - start qdma on a channel
* @base: base address of edma
@@ -383,8 +391,8 @@ void qedma3_stop(u32 base, struct edma3_channel_config *cfg)
__raw_writel(0, base + EDMA3_QCHMAP(cfg->chnum));
}
-void edma3_transfer(unsigned long edma3_base_addr, unsigned int
- edma_slot_num, void *dst, void *src, size_t len)
+void __edma3_transfer(unsigned long edma3_base_addr, unsigned int
edma_slot_num,
+ void *dst, void *src, size_t len)
{
struct edma3_slot_config slot;
struct edma3_channel_config edma_channel;
@@ -460,3 +468,66 @@ void edma3_transfer(unsigned long edma3_base_addr,
unsigned int
qedma3_stop(edma3_base_addr, &edma_channel);
}
}
+
+#ifndef CONFIG_DM_DMA
+
+void edma3_transfer(unsigned long edma3_base_addr, unsigned int edma_slot_num,
+ void *dst, void *src, size_t len)
+{
+ __edma3_transfer(edma3_base_addr, edma_slot_num, dst, src, len);
+}
+
+#else
+
+static int ti_edma3_transfer(struct udevice *dev, int direction, void *dst,
+ void *src, size_t len)
+{
+ struct ti_edma3_priv *priv = dev_get_priv(dev);
+
+ /* enable edma3 clocks */
+ enable_edma3_clocks();
+
+ __edma3_transfer(priv->base, 1, dst, src, len);
+
+ /* disable edma3 clocks */
+ disable_edma3_clocks();
+
+ return 0;
+}
+
+static int ti_edma3_probe(struct udevice *bus)
+{
+ /* Nothing to do in probe */
+ return 0;
+}
+
+static int ti_edma3_ofdata_to_platdata(struct udevice *dev)
+{
+ struct ti_edma3_priv *priv = dev_get_priv(dev);
+ struct dma_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+
+ priv->base = dev_get_addr(dev);
+ uc_priv->supported = SUPPORTS_MEM_TO_MEM;
+
+ return 0;
+}
+
+static const struct dma_ops ti_edma3_ops = {
+ .transfer = ti_edma3_transfer,
+};
+
+static const struct udevice_id ti_edma3_ids[] = {
+ { .compatible = "ti,edma3" },
+ { }
+};
+
+U_BOOT_DRIVER(ti_edma3) = {
+ .name = "ti_edma3",
+ .id = UCLASS_DMA,
+ .of_match = ti_edma3_ids,
+ .ops = &ti_edma3_ops,
+ .ofdata_to_platdata = ti_edma3_ofdata_to_platdata,
+ .priv_auto_alloc_size = sizeof(struct ti_edma3_priv),
+ .probe = ti_edma3_probe,
+};
+#endif /* CONFIG_DM_DMA */
--
2.6.3.368.gf34be46
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