diff options
author | Kim Phillips <kim.phillips@freescale.com> | 2011-11-21 12:13:27 +0400 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-11-21 12:21:50 +0400 |
commit | ad42d5fc85383278663ecb58a24f6547ad0ba735 (patch) | |
tree | acad5589157f94ceb2df9ef97cc2deb635fe0bbd | |
parent | 5b859b6ebb18b37244d44b5300bf765694b7303c (diff) | |
download | linux-ad42d5fc85383278663ecb58a24f6547ad0ba735.tar.xz |
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>
-rw-r--r-- | drivers/crypto/talitos.c | 37 | ||||
-rw-r--r-- | drivers/crypto/talitos.h | 31 |
2 files changed, 38 insertions, 30 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); diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h index 0b746aca4587..3ed319da853c 100644 --- a/drivers/crypto/talitos.h +++ b/drivers/crypto/talitos.h @@ -1,7 +1,7 @@ /* * Freescale SEC (talitos) device register and descriptor header defines * - * Copyright (c) 2006-2010 Freescale Semiconductor, Inc. + * Copyright (c) 2006-2011 Freescale Semiconductor, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -49,13 +49,14 @@ #define TALITOS_ICR_LO 0x101C /* channel register address stride */ +#define TALITOS_CH_BASE_OFFSET 0x1000 /* default channel map base */ #define TALITOS_CH_STRIDE 0x100 /* channel configuration register */ -#define TALITOS_CCCR(ch) (ch * TALITOS_CH_STRIDE + 0x1108) +#define TALITOS_CCCR 0x8 #define TALITOS_CCCR_CONT 0x2 /* channel continue */ #define TALITOS_CCCR_RESET 0x1 /* channel reset */ -#define TALITOS_CCCR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x110c) +#define TALITOS_CCCR_LO 0xc #define TALITOS_CCCR_LO_IWSE 0x80 /* chan. ICCR writeback enab. */ #define TALITOS_CCCR_LO_EAE 0x20 /* extended address enable */ #define TALITOS_CCCR_LO_CDWE 0x10 /* chan. done writeback enab. */ @@ -63,8 +64,8 @@ #define TALITOS_CCCR_LO_CDIE 0x2 /* channel done IRQ enable */ /* CCPSR: channel pointer status register */ -#define TALITOS_CCPSR(ch) (ch * TALITOS_CH_STRIDE + 0x1110) -#define TALITOS_CCPSR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1114) +#define TALITOS_CCPSR 0x10 +#define TALITOS_CCPSR_LO 0x14 #define TALITOS_CCPSR_LO_DOF 0x8000 /* double FF write oflow error */ #define TALITOS_CCPSR_LO_SOF 0x4000 /* single FF write oflow error */ #define TALITOS_CCPSR_LO_MDTE 0x2000 /* master data transfer error */ @@ -79,24 +80,24 @@ #define TALITOS_CCPSR_LO_SRL 0x0010 /* scatter return/length error */ /* channel fetch fifo register */ -#define TALITOS_FF(ch) (ch * TALITOS_CH_STRIDE + 0x1148) -#define TALITOS_FF_LO(ch) (ch * TALITOS_CH_STRIDE + 0x114c) +#define TALITOS_FF 0x48 +#define TALITOS_FF_LO 0x4c /* current descriptor pointer register */ -#define TALITOS_CDPR(ch) (ch * TALITOS_CH_STRIDE + 0x1140) -#define TALITOS_CDPR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1144) +#define TALITOS_CDPR 0x40 +#define TALITOS_CDPR_LO 0x44 /* descriptor buffer register */ -#define TALITOS_DESCBUF(ch) (ch * TALITOS_CH_STRIDE + 0x1180) -#define TALITOS_DESCBUF_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1184) +#define TALITOS_DESCBUF 0x80 +#define TALITOS_DESCBUF_LO 0x84 /* gather link table */ -#define TALITOS_GATHER(ch) (ch * TALITOS_CH_STRIDE + 0x11c0) -#define TALITOS_GATHER_LO(ch) (ch * TALITOS_CH_STRIDE + 0x11c4) +#define TALITOS_GATHER 0xc0 +#define TALITOS_GATHER_LO 0xc4 /* scatter link table */ -#define TALITOS_SCATTER(ch) (ch * TALITOS_CH_STRIDE + 0x11e0) -#define TALITOS_SCATTER_LO(ch) (ch * TALITOS_CH_STRIDE + 0x11e4) +#define TALITOS_SCATTER 0xe0 +#define TALITOS_SCATTER_LO 0xe4 /* execution unit interrupt status registers */ #define TALITOS_DEUISR 0x2030 /* DES unit */ |