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path: root/drivers/dma/fsl-edma-common.c
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Diffstat (limited to 'drivers/dma/fsl-edma-common.c')
-rw-r--r--drivers/dma/fsl-edma-common.c69
1 files changed, 40 insertions, 29 deletions
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 680b2a00a953..44d92c34dec3 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -47,7 +47,7 @@ static void fsl_edma_enable_request(struct fsl_edma_chan *fsl_chan)
struct edma_regs *regs = &fsl_chan->edma->regs;
u32 ch = fsl_chan->vchan.chan.chan_id;
- if (fsl_chan->edma->version == v1) {
+ if (fsl_chan->edma->drvdata->version == v1) {
edma_writeb(fsl_chan->edma, EDMA_SEEI_SEEI(ch), regs->seei);
edma_writeb(fsl_chan->edma, ch, regs->serq);
} else {
@@ -64,7 +64,7 @@ void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan)
struct edma_regs *regs = &fsl_chan->edma->regs;
u32 ch = fsl_chan->vchan.chan.chan_id;
- if (fsl_chan->edma->version == v1) {
+ if (fsl_chan->edma->drvdata->version == v1) {
edma_writeb(fsl_chan->edma, ch, regs->cerq);
edma_writeb(fsl_chan->edma, EDMA_CEEI_CEEI(ch), regs->ceei);
} else {
@@ -77,22 +77,33 @@ void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan)
}
EXPORT_SYMBOL_GPL(fsl_edma_disable_request);
+static void mux_configure8(struct fsl_edma_chan *fsl_chan, void __iomem *addr,
+ u32 off, u32 slot, bool enable)
+{
+ u8 val8;
+
+ if (enable)
+ val8 = EDMAMUX_CHCFG_ENBL | slot;
+ else
+ val8 = EDMAMUX_CHCFG_DIS;
+
+ iowrite8(val8, addr + off);
+}
+
void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan,
unsigned int slot, bool enable)
{
u32 ch = fsl_chan->vchan.chan.chan_id;
void __iomem *muxaddr;
unsigned int chans_per_mux, ch_off;
+ u32 dmamux_nr = fsl_chan->edma->drvdata->dmamuxs;
- chans_per_mux = fsl_chan->edma->n_chans / DMAMUX_NR;
+ chans_per_mux = fsl_chan->edma->n_chans / dmamux_nr;
ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux;
muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux];
slot = EDMAMUX_CHCFG_SOURCE(slot);
- if (enable)
- iowrite8(EDMAMUX_CHCFG_ENBL | slot, muxaddr + ch_off);
- else
- iowrite8(EDMAMUX_CHCFG_DIS, muxaddr + ch_off);
+ mux_configure8(fsl_chan, muxaddr, ch_off, slot, enable);
}
EXPORT_SYMBOL_GPL(fsl_edma_chan_mux);
@@ -647,28 +658,28 @@ void fsl_edma_setup_regs(struct fsl_edma_engine *edma)
edma->regs.erql = edma->membase + EDMA_ERQ;
edma->regs.eeil = edma->membase + EDMA_EEI;
- edma->regs.serq = edma->membase + ((edma->version == v1) ?
- EDMA_SERQ : EDMA64_SERQ);
- edma->regs.cerq = edma->membase + ((edma->version == v1) ?
- EDMA_CERQ : EDMA64_CERQ);
- edma->regs.seei = edma->membase + ((edma->version == v1) ?
- EDMA_SEEI : EDMA64_SEEI);
- edma->regs.ceei = edma->membase + ((edma->version == v1) ?
- EDMA_CEEI : EDMA64_CEEI);
- edma->regs.cint = edma->membase + ((edma->version == v1) ?
- EDMA_CINT : EDMA64_CINT);
- edma->regs.cerr = edma->membase + ((edma->version == v1) ?
- EDMA_CERR : EDMA64_CERR);
- edma->regs.ssrt = edma->membase + ((edma->version == v1) ?
- EDMA_SSRT : EDMA64_SSRT);
- edma->regs.cdne = edma->membase + ((edma->version == v1) ?
- EDMA_CDNE : EDMA64_CDNE);
- edma->regs.intl = edma->membase + ((edma->version == v1) ?
- EDMA_INTR : EDMA64_INTL);
- edma->regs.errl = edma->membase + ((edma->version == v1) ?
- EDMA_ERR : EDMA64_ERRL);
-
- if (edma->version == v2) {
+ edma->regs.serq = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_SERQ : EDMA_SERQ);
+ edma->regs.cerq = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_CERQ : EDMA_CERQ);
+ edma->regs.seei = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_SEEI : EDMA_SEEI);
+ edma->regs.ceei = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_CEEI : EDMA_CEEI);
+ edma->regs.cint = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_CINT : EDMA_CINT);
+ edma->regs.cerr = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_CERR : EDMA_CERR);
+ edma->regs.ssrt = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_SSRT : EDMA_SSRT);
+ edma->regs.cdne = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_CDNE : EDMA_CDNE);
+ edma->regs.intl = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_INTL : EDMA_INTR);
+ edma->regs.errl = edma->membase + ((edma->drvdata->version == v2) ?
+ EDMA64_ERRL : EDMA_ERR);
+
+ if (edma->drvdata->version == v2) {
edma->regs.erqh = edma->membase + EDMA64_ERQH;
edma->regs.eeih = edma->membase + EDMA64_EEIH;
edma->regs.errh = edma->membase + EDMA64_ERRH;