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authorKim Phillips <kim.phillips@freescale.com>2011-11-21 16:13:27 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2011-11-21 16:21:50 +0800
commitad42d5fc85383278663ecb58a24f6547ad0ba735 (patch)
treeacad5589157f94ceb2df9ef97cc2deb635fe0bbd /drivers/crypto/talitos.c
parent5b859b6ebb18b37244d44b5300bf765694b7303c (diff)
downloadlinux-linaro-stable-ad42d5fc85383278663ecb58a24f6547ad0ba735.tar.gz
crypto: talitos - prepare driver for channel remap support
Add a reg member to the channel struct and use it to access channels. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index c372a18ed22e..7f82e91e461c 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -99,6 +99,8 @@ struct talitos_request {
/* per-channel fifo management */
struct talitos_channel {
+ void __iomem *reg;
+
/* request fifo */
struct talitos_request *fifo;
@@ -197,9 +199,9 @@ static int reset_channel(struct device *dev, int ch)
struct talitos_private *priv = dev_get_drvdata(dev);
unsigned int timeout = TALITOS_TIMEOUT;
- setbits32(priv->reg + TALITOS_CCCR(ch), TALITOS_CCCR_RESET);
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR, TALITOS_CCCR_RESET);
- while ((in_be32(priv->reg + TALITOS_CCCR(ch)) & TALITOS_CCCR_RESET)
+ while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & TALITOS_CCCR_RESET)
&& --timeout)
cpu_relax();
@@ -209,12 +211,12 @@ static int reset_channel(struct device *dev, int ch)
}
/* set 36-bit addressing, done writeback enable and done IRQ enable */
- setbits32(priv->reg + TALITOS_CCCR_LO(ch), TALITOS_CCCR_LO_EAE |
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE |
TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE);
/* and ICCR writeback, if available */
if (priv->features & TALITOS_FTR_HW_AUTH_CHECK)
- setbits32(priv->reg + TALITOS_CCCR_LO(ch),
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
TALITOS_CCCR_LO_IWSE);
return 0;
@@ -328,8 +330,9 @@ static int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
/* GO! */
wmb();
- out_be32(priv->reg + TALITOS_FF(ch), upper_32_bits(request->dma_desc));
- out_be32(priv->reg + TALITOS_FF_LO(ch),
+ out_be32(priv->chan[ch].reg + TALITOS_FF,
+ upper_32_bits(request->dma_desc));
+ out_be32(priv->chan[ch].reg + TALITOS_FF_LO,
lower_32_bits(request->dma_desc));
spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags);
@@ -423,7 +426,7 @@ static u32 current_desc_hdr(struct device *dev, int ch)
int tail = priv->chan[ch].tail;
dma_addr_t cur_desc;
- cur_desc = in_be32(priv->reg + TALITOS_CDPR_LO(ch));
+ cur_desc = in_be32(priv->chan[ch].reg + TALITOS_CDPR_LO);
while (priv->chan[ch].fifo[tail].dma_desc != cur_desc) {
tail = (tail + 1) & (priv->fifo_len - 1);
@@ -445,7 +448,7 @@ static void report_eu_error(struct device *dev, int ch, u32 desc_hdr)
int i;
if (!desc_hdr)
- desc_hdr = in_be32(priv->reg + TALITOS_DESCBUF(ch));
+ desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF);
switch (desc_hdr & DESC_HDR_SEL0_MASK) {
case DESC_HDR_SEL0_AFEU:
@@ -507,8 +510,8 @@ static void report_eu_error(struct device *dev, int ch, u32 desc_hdr)
for (i = 0; i < 8; i++)
dev_err(dev, "DESCBUF 0x%08x_%08x\n",
- in_be32(priv->reg + TALITOS_DESCBUF(ch) + 8*i),
- in_be32(priv->reg + TALITOS_DESCBUF_LO(ch) + 8*i));
+ in_be32(priv->chan[ch].reg + TALITOS_DESCBUF + 8*i),
+ in_be32(priv->chan[ch].reg + TALITOS_DESCBUF_LO + 8*i));
}
/*
@@ -529,8 +532,8 @@ static void talitos_error(unsigned long data, u32 isr, u32 isr_lo)
error = -EINVAL;
- v = in_be32(priv->reg + TALITOS_CCPSR(ch));
- v_lo = in_be32(priv->reg + TALITOS_CCPSR_LO(ch));
+ v = in_be32(priv->chan[ch].reg + TALITOS_CCPSR);
+ v_lo = in_be32(priv->chan[ch].reg + TALITOS_CCPSR_LO);
if (v_lo & TALITOS_CCPSR_LO_DOF) {
dev_err(dev, "double fetch fifo overflow error\n");
@@ -568,10 +571,10 @@ static void talitos_error(unsigned long data, u32 isr, u32 isr_lo)
if (reset_ch) {
reset_channel(dev, ch);
} else {
- setbits32(priv->reg + TALITOS_CCCR(ch),
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR,
TALITOS_CCCR_CONT);
- setbits32(priv->reg + TALITOS_CCCR_LO(ch), 0);
- while ((in_be32(priv->reg + TALITOS_CCCR(ch)) &
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0);
+ while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) &
TALITOS_CCCR_CONT) && --timeout)
cpu_relax();
if (timeout == 0) {
@@ -2710,6 +2713,10 @@ static int talitos_probe(struct platform_device *ofdev)
goto err_out;
}
+ for (i = 0; i < priv->num_channels; i++)
+ priv->chan[i].reg = priv->reg + TALITOS_CH_BASE_OFFSET +
+ TALITOS_CH_STRIDE * (i + 1);
+
for (i = 0; i < priv->num_channels; i++) {
spin_lock_init(&priv->chan[i].head_lock);
spin_lock_init(&priv->chan[i].tail_lock);