[PATCH 07/17] omap: McBSP: Modify macros/functions API for easy cache access

Tony Lindgren
2010-02-11T03:35:15Z

From: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>

OMAP_MCBSP_READ()/_WRITE() macros and omap_mcbsp_read()/_write() functions
accept McBSP register base address as an argument. In order to support
caching, that must be replaced with an address of the omap_mcbsp structure
that would provide addresses for both register AND cache access.

Since OMAP_ prefix seems obvious in macro names, drop it off in order to
minimize line wrapping throughout the file.

Tested on OMAP1510 based Amstrad Delta using linux-omap for-next, commit
fb7380d70e041e4b3892f6b19dff7efb609d15a4 (2.6.33-rc3+ dated 2010-01-11).
Compile-tested with omap_3430sdp_defconfig.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/plat-omap/mcbsp.c | 281 ++++++++++++++++++++------------------------
1 files changed, 125 insertions(+), 156 deletions(-)

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index eaaf53b..f8245f2 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -30,26 +30,26 @@
struct omap_mcbsp **mcbsp_ptr;
int omap_mcbsp_count;

-void omap_mcbsp_write(void __iomem *io_base, u16 reg, u32 val)
+void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
{
if (cpu_class_is_omap1() || cpu_is_omap2420())
- __raw_writew((u16)val, io_base + reg);
+ __raw_writew((u16)val, mcbsp->io_base + reg);
else
- __raw_writel(val, io_base + reg);
+ __raw_writel(val, mcbsp->io_base + reg);
}

-int omap_mcbsp_read(void __iomem *io_base, u16 reg)
+int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg)
{
if (cpu_class_is_omap1() || cpu_is_omap2420())
- return __raw_readw(io_base + reg);
+ return __raw_readw(mcbsp->io_base + reg);
else
- return __raw_readl(io_base + reg);
+ return __raw_readl(mcbsp->io_base + reg);
}

-#define OMAP_MCBSP_READ(base, reg) \
- omap_mcbsp_read(base, OMAP_MCBSP_REG_##reg)
-#define OMAP_MCBSP_WRITE(base, reg, val) \
- omap_mcbsp_write(base, OMAP_MCBSP_REG_##reg, val)
+#define MCBSP_READ(mcbsp, reg) \
+ omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg)
+#define MCBSP_WRITE(mcbsp, reg, val) \
+ omap_mcbsp_write(mcbsp, OMAP_MCBSP_REG_##reg, val)

#define omap_mcbsp_check_valid_id(id) (id < omap_mcbsp_count)
#define id_to_mcbsp_ptr(id) mcbsp_ptr[id];
@@ -60,31 +60,31 @@ static void omap_mcbsp_dump_reg(u8 id)

dev_dbg(mcbsp->dev, "**** McBSP%d regs ****\n", mcbsp->id);
dev_dbg(mcbsp->dev, "DRR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, DRR2));
+ MCBSP_READ(mcbsp, DRR2));
dev_dbg(mcbsp->dev, "DRR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, DRR1));
+ MCBSP_READ(mcbsp, DRR1));
dev_dbg(mcbsp->dev, "DXR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, DXR2));
+ MCBSP_READ(mcbsp, DXR2));
dev_dbg(mcbsp->dev, "DXR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, DXR1));
+ MCBSP_READ(mcbsp, DXR1));
dev_dbg(mcbsp->dev, "SPCR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, SPCR2));
+ MCBSP_READ(mcbsp, SPCR2));
dev_dbg(mcbsp->dev, "SPCR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, SPCR1));
+ MCBSP_READ(mcbsp, SPCR1));
dev_dbg(mcbsp->dev, "RCR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, RCR2));
+ MCBSP_READ(mcbsp, RCR2));
dev_dbg(mcbsp->dev, "RCR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, RCR1));
+ MCBSP_READ(mcbsp, RCR1));
dev_dbg(mcbsp->dev, "XCR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, XCR2));
+ MCBSP_READ(mcbsp, XCR2));
dev_dbg(mcbsp->dev, "XCR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, XCR1));
+ MCBSP_READ(mcbsp, XCR1));
dev_dbg(mcbsp->dev, "SRGR2: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, SRGR2));
+ MCBSP_READ(mcbsp, SRGR2));
dev_dbg(mcbsp->dev, "SRGR1: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, SRGR1));
+ MCBSP_READ(mcbsp, SRGR1));
dev_dbg(mcbsp->dev, "PCR0: 0x%04x\n",
- OMAP_MCBSP_READ(mcbsp->io_base, PCR0));
+ MCBSP_READ(mcbsp, PCR0));
dev_dbg(mcbsp->dev, "***********************\n");
}

@@ -93,15 +93,14 @@ static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
struct omap_mcbsp *mcbsp_tx = dev_id;
u16 irqst_spcr2;

- irqst_spcr2 = OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2);
+ irqst_spcr2 = MCBSP_READ(mcbsp_tx, SPCR2);
dev_dbg(mcbsp_tx->dev, "TX IRQ callback : 0x%x\n", irqst_spcr2);

if (irqst_spcr2 & XSYNC_ERR) {
dev_err(mcbsp_tx->dev, "TX Frame Sync Error! : 0x%x\n",
irqst_spcr2);
/* Writing zero to XSYNC_ERR clears the IRQ */
- OMAP_MCBSP_WRITE(mcbsp_tx->io_base, SPCR2,
- irqst_spcr2 & ~(XSYNC_ERR));
+ MCBSP_WRITE(mcbsp_tx, SPCR2, irqst_spcr2 & ~(XSYNC_ERR));
} else {
complete(&mcbsp_tx->tx_irq_completion);
}
@@ -114,15 +113,14 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
struct omap_mcbsp *mcbsp_rx = dev_id;
u16 irqst_spcr1;

- irqst_spcr1 = OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR1);
+ irqst_spcr1 = MCBSP_READ(mcbsp_rx, SPCR1);
dev_dbg(mcbsp_rx->dev, "RX IRQ callback : 0x%x\n", irqst_spcr1);

if (irqst_spcr1 & RSYNC_ERR) {
dev_err(mcbsp_rx->dev, "RX Frame Sync Error! : 0x%x\n",
irqst_spcr1);
/* Writing zero to RSYNC_ERR clears the IRQ */
- OMAP_MCBSP_WRITE(mcbsp_rx->io_base, SPCR1,
- irqst_spcr1 & ~(RSYNC_ERR));
+ MCBSP_WRITE(mcbsp_rx, SPCR1, irqst_spcr1 & ~(RSYNC_ERR));
} else {
complete(&mcbsp_rx->tx_irq_completion);
}
@@ -135,7 +133,7 @@ static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
struct omap_mcbsp *mcbsp_dma_tx = data;

dev_dbg(mcbsp_dma_tx->dev, "TX DMA callback : 0x%x\n",
- OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
+ MCBSP_READ(mcbsp_dma_tx, SPCR2));

/* We can free the channels */
omap_free_dma(mcbsp_dma_tx->dma_tx_lch);
@@ -149,7 +147,7 @@ static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
struct omap_mcbsp *mcbsp_dma_rx = data;

dev_dbg(mcbsp_dma_rx->dev, "RX DMA callback : 0x%x\n",
- OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
+ MCBSP_READ(mcbsp_dma_rx, SPCR2));

/* We can free the channels */
omap_free_dma(mcbsp_dma_rx->dma_rx_lch);
@@ -167,7 +165,6 @@ static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;

if (!omap_mcbsp_check_valid_id(id)) {
printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -175,25 +172,24 @@ void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
}
mcbsp = id_to_mcbsp_ptr(id);

- io_base = mcbsp->io_base;
dev_dbg(mcbsp->dev, "Configuring McBSP%d phys_base: 0x%08lx\n",
mcbsp->id, mcbsp->phys_base);

/* We write the given config */
- OMAP_MCBSP_WRITE(io_base, SPCR2, config->spcr2);
- OMAP_MCBSP_WRITE(io_base, SPCR1, config->spcr1);
- OMAP_MCBSP_WRITE(io_base, RCR2, config->rcr2);
- OMAP_MCBSP_WRITE(io_base, RCR1, config->rcr1);
- OMAP_MCBSP_WRITE(io_base, XCR2, config->xcr2);
- OMAP_MCBSP_WRITE(io_base, XCR1, config->xcr1);
- OMAP_MCBSP_WRITE(io_base, SRGR2, config->srgr2);
- OMAP_MCBSP_WRITE(io_base, SRGR1, config->srgr1);
- OMAP_MCBSP_WRITE(io_base, MCR2, config->mcr2);
- OMAP_MCBSP_WRITE(io_base, MCR1, config->mcr1);
- OMAP_MCBSP_WRITE(io_base, PCR0, config->pcr0);
+ MCBSP_WRITE(mcbsp, SPCR2, config->spcr2);
+ MCBSP_WRITE(mcbsp, SPCR1, config->spcr1);
+ MCBSP_WRITE(mcbsp, RCR2, config->rcr2);
+ MCBSP_WRITE(mcbsp, RCR1, config->rcr1);
+ MCBSP_WRITE(mcbsp, XCR2, config->xcr2);
+ MCBSP_WRITE(mcbsp, XCR1, config->xcr1);
+ MCBSP_WRITE(mcbsp, SRGR2, config->srgr2);
+ MCBSP_WRITE(mcbsp, SRGR1, config->srgr1);
+ MCBSP_WRITE(mcbsp, MCR2, config->mcr2);
+ MCBSP_WRITE(mcbsp, MCR1, config->mcr1);
+ MCBSP_WRITE(mcbsp, PCR0, config->pcr0);
if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx()) {
- OMAP_MCBSP_WRITE(io_base, XCCR, config->xccr);
- OMAP_MCBSP_WRITE(io_base, RCCR, config->rccr);
+ MCBSP_WRITE(mcbsp, XCCR, config->xccr);
+ MCBSP_WRITE(mcbsp, RCCR, config->rccr);
}
}
EXPORT_SYMBOL(omap_mcbsp_config);
@@ -207,7 +203,6 @@ EXPORT_SYMBOL(omap_mcbsp_config);
void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;

if (!cpu_is_omap34xx())
return;
@@ -217,9 +212,8 @@ void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold)
return;
}
mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;

- OMAP_MCBSP_WRITE(io_base, THRSH2, threshold);
+ MCBSP_WRITE(mcbsp, THRSH2, threshold);
}
EXPORT_SYMBOL(omap_mcbsp_set_tx_threshold);

@@ -231,7 +225,6 @@ EXPORT_SYMBOL(omap_mcbsp_set_tx_threshold);
void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;

if (!cpu_is_omap34xx())
return;
@@ -241,9 +234,8 @@ void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold)
return;
}
mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;

- OMAP_MCBSP_WRITE(io_base, THRSH1, threshold);
+ MCBSP_WRITE(mcbsp, THRSH1, threshold);
}
EXPORT_SYMBOL(omap_mcbsp_set_rx_threshold);

@@ -313,19 +305,18 @@ static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp)
if (cpu_is_omap34xx()) {
u16 syscon;

- syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
+ syscon = MCBSP_READ(mcbsp, SYSCON);
syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03));

if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) {
syscon |= (ENAWAKEUP | SIDLEMODE(0x02) |
CLOCKACTIVITY(0x02));
- OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN,
- XRDYEN | RRDYEN);
+ MCBSP_WRITE(mcbsp, WAKEUPEN, XRDYEN | RRDYEN);
} else {
syscon |= SIDLEMODE(0x01);
}

- OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
+ MCBSP_WRITE(mcbsp, SYSCON, syscon);
}
}

@@ -337,7 +328,7 @@ static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp)
if (cpu_is_omap34xx()) {
u16 syscon;

- syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
+ syscon = MCBSP_READ(mcbsp, SYSCON);
syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03));
/*
* HW bug workaround - If no_idle mode is taken, we need to
@@ -345,12 +336,12 @@ static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp)
* device will not hit retention anymore.
*/
syscon |= SIDLEMODE(0x02);
- OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
+ MCBSP_WRITE(mcbsp, SYSCON, syscon);

syscon &= ~(SIDLEMODE(0x03));
- OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
+ MCBSP_WRITE(mcbsp, SYSCON, syscon);

- OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, 0);
+ MCBSP_WRITE(mcbsp, WAKEUPEN, 0);
}
}
#else
@@ -424,8 +415,8 @@ int omap_mcbsp_request(unsigned int id)
* Make sure that transmitter, receiver and sample-rate generator are
* not running before activating IRQs.
*/
- OMAP_MCBSP_WRITE(mcbsp->io_base, SPCR1, 0);
- OMAP_MCBSP_WRITE(mcbsp->io_base, SPCR2, 0);
+ MCBSP_WRITE(mcbsp, SPCR1, 0);
+ MCBSP_WRITE(mcbsp, SPCR2, 0);

if (mcbsp->io_type == OMAP_MCBSP_IRQ_IO) {
/* We need to get IRQs here */
@@ -515,7 +506,6 @@ EXPORT_SYMBOL(omap_mcbsp_free);
void omap_mcbsp_start(unsigned int id, int tx, int rx)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;
int idle;
u16 w;

@@ -524,28 +514,26 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
return;
}
mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;

- mcbsp->rx_word_length = (OMAP_MCBSP_READ(io_base, RCR1) >> 5) & 0x7;
- mcbsp->tx_word_length = (OMAP_MCBSP_READ(io_base, XCR1) >> 5) & 0x7;
+ mcbsp->rx_word_length = (MCBSP_READ(mcbsp, RCR1) >> 5) & 0x7;
+ mcbsp->tx_word_length = (MCBSP_READ(mcbsp, XCR1) >> 5) & 0x7;

- idle = !((OMAP_MCBSP_READ(io_base, SPCR2) |
- OMAP_MCBSP_READ(io_base, SPCR1)) & 1);
+ idle = !((MCBSP_READ(mcbsp, SPCR2) | MCBSP_READ(mcbsp, SPCR1)) & 1);

if (idle) {
/* Start the sample generator */
- w = OMAP_MCBSP_READ(io_base, SPCR2);
- OMAP_MCBSP_WRITE(io_base, SPCR2, w | (1 << 6));
+ w = MCBSP_READ(mcbsp, SPCR2);
+ MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 6));
}

/* Enable transmitter and receiver */
tx &= 1;
- w = OMAP_MCBSP_READ(io_base, SPCR2);
- OMAP_MCBSP_WRITE(io_base, SPCR2, w | tx);
+ w = MCBSP_READ(mcbsp, SPCR2);
+ MCBSP_WRITE(mcbsp, SPCR2, w | tx);

rx &= 1;
- w = OMAP_MCBSP_READ(io_base, SPCR1);
- OMAP_MCBSP_WRITE(io_base, SPCR1, w | rx);
+ w = MCBSP_READ(mcbsp, SPCR1);
+ MCBSP_WRITE(mcbsp, SPCR1, w | rx);

/*
* Worst case: CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec
@@ -557,18 +545,18 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)

if (idle) {
/* Start frame sync */
- w = OMAP_MCBSP_READ(io_base, SPCR2);
- OMAP_MCBSP_WRITE(io_base, SPCR2, w | (1 << 7));
+ w = MCBSP_READ(mcbsp, SPCR2);
+ MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 7));
}

if (cpu_is_omap2430() || cpu_is_omap34xx()) {
/* Release the transmitter and receiver */
- w = OMAP_MCBSP_READ(io_base, XCCR);
+ w = MCBSP_READ(mcbsp, XCCR);
w &= ~(tx ? XDISABLE : 0);
- OMAP_MCBSP_WRITE(io_base, XCCR, w);
- w = OMAP_MCBSP_READ(io_base, RCCR);
+ MCBSP_WRITE(mcbsp, XCCR, w);
+ w = MCBSP_READ(mcbsp, RCCR);
w &= ~(rx ? RDISABLE : 0);
- OMAP_MCBSP_WRITE(io_base, RCCR, w);
+ MCBSP_WRITE(mcbsp, RCCR, w);
}

/* Dump McBSP Regs */
@@ -579,7 +567,6 @@ EXPORT_SYMBOL(omap_mcbsp_start);
void omap_mcbsp_stop(unsigned int id, int tx, int rx)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;
int idle;
u16 w;

@@ -589,35 +576,33 @@ void omap_mcbsp_stop(unsigned int id, int tx, int rx)
}

mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;

/* Reset transmitter */
tx &= 1;
if (cpu_is_omap2430() || cpu_is_omap34xx()) {
- w = OMAP_MCBSP_READ(io_base, XCCR);
+ w = MCBSP_READ(mcbsp, XCCR);
w |= (tx ? XDISABLE : 0);
- OMAP_MCBSP_WRITE(io_base, XCCR, w);
+ MCBSP_WRITE(mcbsp, XCCR, w);
}
- w = OMAP_MCBSP_READ(io_base, SPCR2);
- OMAP_MCBSP_WRITE(io_base, SPCR2, w & ~tx);
+ w = MCBSP_READ(mcbsp, SPCR2);
+ MCBSP_WRITE(mcbsp, SPCR2, w & ~tx);

/* Reset receiver */
rx &= 1;
if (cpu_is_omap2430() || cpu_is_omap34xx()) {
- w = OMAP_MCBSP_READ(io_base, RCCR);
+ w = MCBSP_READ(mcbsp, RCCR);
w |= (rx ? RDISABLE : 0);
- OMAP_MCBSP_WRITE(io_base, RCCR, w);
+ MCBSP_WRITE(mcbsp, RCCR, w);
}
- w = OMAP_MCBSP_READ(io_base, SPCR1);
- OMAP_MCBSP_WRITE(io_base, SPCR1, w & ~rx);
+ w = MCBSP_READ(mcbsp, SPCR1);
+ MCBSP_WRITE(mcbsp, SPCR1, w & ~rx);

- idle = !((OMAP_MCBSP_READ(io_base, SPCR2) |
- OMAP_MCBSP_READ(io_base, SPCR1)) & 1);
+ idle = !((MCBSP_READ(mcbsp, SPCR2) | MCBSP_READ(mcbsp, SPCR1)) & 1);

if (idle) {
/* Reset the sample rate generator */
- w = OMAP_MCBSP_READ(io_base, SPCR2);
- OMAP_MCBSP_WRITE(io_base, SPCR2, w & ~(1 << 6));
+ w = MCBSP_READ(mcbsp, SPCR2);
+ MCBSP_WRITE(mcbsp, SPCR2, w & ~(1 << 6));
}
}
EXPORT_SYMBOL(omap_mcbsp_stop);
@@ -626,7 +611,6 @@ EXPORT_SYMBOL(omap_mcbsp_stop);
int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
{
struct omap_mcbsp *mcbsp;
- void __iomem *base;

if (!omap_mcbsp_check_valid_id(id)) {
printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -634,28 +618,25 @@ int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
}

mcbsp = id_to_mcbsp_ptr(id);
- base = mcbsp->io_base;

- OMAP_MCBSP_WRITE(base, DXR1, buf);
+ MCBSP_WRITE(mcbsp, DXR1, buf);
/* if frame sync error - clear the error */
- if (OMAP_MCBSP_READ(base, SPCR2) & XSYNC_ERR) {
+ if (MCBSP_READ(mcbsp, SPCR2) & XSYNC_ERR) {
/* clear error */
- OMAP_MCBSP_WRITE(base, SPCR2,
- OMAP_MCBSP_READ(base, SPCR2) & (~XSYNC_ERR));
+ MCBSP_WRITE(mcbsp, SPCR2,
+ MCBSP_READ(mcbsp, SPCR2) & (~XSYNC_ERR));
/* resend */
return -1;
} else {
/* wait for transmit confirmation */
int attemps = 0;
- while (!(OMAP_MCBSP_READ(base, SPCR2) & XRDY)) {
+ while (!(MCBSP_READ(mcbsp, SPCR2) & XRDY)) {
if (attemps++ > 1000) {
- OMAP_MCBSP_WRITE(base, SPCR2,
- OMAP_MCBSP_READ(base, SPCR2) &
- (~XRST));
+ MCBSP_WRITE(mcbsp, SPCR2,
+ MCBSP_READ(mcbsp, SPCR2) & (~XRST));
udelay(10);
- OMAP_MCBSP_WRITE(base, SPCR2,
- OMAP_MCBSP_READ(base, SPCR2) |
- (XRST));
+ MCBSP_WRITE(mcbsp, SPCR2,
+ MCBSP_READ(mcbsp, SPCR2) | (XRST));
udelay(10);
dev_err(mcbsp->dev, "Could not write to"
" McBSP%d Register\n", mcbsp->id);
@@ -671,7 +652,6 @@ EXPORT_SYMBOL(omap_mcbsp_pollwrite);
int omap_mcbsp_pollread(unsigned int id, u16 *buf)
{
struct omap_mcbsp *mcbsp;
- void __iomem *base;

if (!omap_mcbsp_check_valid_id(id)) {
printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
@@ -679,26 +659,23 @@ int omap_mcbsp_pollread(unsigned int id, u16 *buf)
}
mcbsp = id_to_mcbsp_ptr(id);

- base = mcbsp->io_base;
/* if frame sync error - clear the error */
- if (OMAP_MCBSP_READ(base, SPCR1) & RSYNC_ERR) {
+ if (MCBSP_READ(mcbsp, SPCR1) & RSYNC_ERR) {
/* clear error */
- OMAP_MCBSP_WRITE(base, SPCR1,
- OMAP_MCBSP_READ(base, SPCR1) & (~RSYNC_ERR));
+ MCBSP_WRITE(mcbsp, SPCR1,
+ MCBSP_READ(mcbsp, SPCR1) & (~RSYNC_ERR));
/* resend */
return -1;
} else {
/* wait for recieve confirmation */
int attemps = 0;
- while (!(OMAP_MCBSP_READ(base, SPCR1) & RRDY)) {
+ while (!(MCBSP_READ(mcbsp, SPCR1) & RRDY)) {
if (attemps++ > 1000) {
- OMAP_MCBSP_WRITE(base, SPCR1,
- OMAP_MCBSP_READ(base, SPCR1) &
- (~RRST));
+ MCBSP_WRITE(mcbsp, SPCR1,
+ MCBSP_READ(mcbsp, SPCR1) & (~RRST));
udelay(10);
- OMAP_MCBSP_WRITE(base, SPCR1,
- OMAP_MCBSP_READ(base, SPCR1) |
- (RRST));
+ MCBSP_WRITE(mcbsp, SPCR1,
+ MCBSP_READ(mcbsp, SPCR1) | (RRST));
udelay(10);
dev_err(mcbsp->dev, "Could not read from"
" McBSP%d Register\n", mcbsp->id);
@@ -706,7 +683,7 @@ int omap_mcbsp_pollread(unsigned int id, u16 *buf)
}
}
}
- *buf = OMAP_MCBSP_READ(base, DRR1);
+ *buf = MCBSP_READ(mcbsp, DRR1);

return 0;
}
@@ -718,7 +695,6 @@ EXPORT_SYMBOL(omap_mcbsp_pollread);
void omap_mcbsp_xmit_word(unsigned int id, u32 word)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;
omap_mcbsp_word_length word_length;

if (!omap_mcbsp_check_valid_id(id)) {
@@ -727,21 +703,19 @@ void omap_mcbsp_xmit_word(unsigned int id, u32 word)
}

mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;
word_length = mcbsp->tx_word_length;

wait_for_completion(&mcbsp->tx_irq_completion);

if (word_length > OMAP_MCBSP_WORD_16)
- OMAP_MCBSP_WRITE(io_base, DXR2, word >> 16);
- OMAP_MCBSP_WRITE(io_base, DXR1, word & 0xffff);
+ MCBSP_WRITE(mcbsp, DXR2, word >> 16);
+ MCBSP_WRITE(mcbsp, DXR1, word & 0xffff);
}
EXPORT_SYMBOL(omap_mcbsp_xmit_word);

u32 omap_mcbsp_recv_word(unsigned int id)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;
u16 word_lsb, word_msb = 0;
omap_mcbsp_word_length word_length;

@@ -752,13 +726,12 @@ u32 omap_mcbsp_recv_word(unsigned int id)
mcbsp = id_to_mcbsp_ptr(id);

word_length = mcbsp->rx_word_length;
- io_base = mcbsp->io_base;

wait_for_completion(&mcbsp->rx_irq_completion);

if (word_length > OMAP_MCBSP_WORD_16)
- word_msb = OMAP_MCBSP_READ(io_base, DRR2);
- word_lsb = OMAP_MCBSP_READ(io_base, DRR1);
+ word_msb = MCBSP_READ(mcbsp, DRR2);
+ word_lsb = MCBSP_READ(mcbsp, DRR1);

return (word_lsb | (word_msb << 16));
}
@@ -767,7 +740,6 @@ EXPORT_SYMBOL(omap_mcbsp_recv_word);
int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
{
struct omap_mcbsp *mcbsp;
- void __iomem *io_base;
omap_mcbsp_word_length tx_word_length;
omap_mcbsp_word_length rx_word_length;
u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
@@ -777,7 +749,6 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
return -ENODEV;
}
mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;
tx_word_length = mcbsp->tx_word_length;
rx_word_length = mcbsp->rx_word_length;

@@ -785,14 +756,14 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
return -EINVAL;

/* First we wait for the transmitter to be ready */
- spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ spcr2 = MCBSP_READ(mcbsp, SPCR2);
while (!(spcr2 & XRDY)) {
- spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ spcr2 = MCBSP_READ(mcbsp, SPCR2);
if (attempts++ > 1000) {
/* We must reset the transmitter */
- OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 & (~XRST));
+ MCBSP_WRITE(mcbsp, SPCR2, spcr2 & (~XRST));
udelay(10);
- OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
+ MCBSP_WRITE(mcbsp, SPCR2, spcr2 | XRST);
udelay(10);
dev_err(mcbsp->dev, "McBSP%d transmitter not "
"ready\n", mcbsp->id);
@@ -802,18 +773,18 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)

/* Now we can push the data */
if (tx_word_length > OMAP_MCBSP_WORD_16)
- OMAP_MCBSP_WRITE(io_base, DXR2, word >> 16);
- OMAP_MCBSP_WRITE(io_base, DXR1, word & 0xffff);
+ MCBSP_WRITE(mcbsp, DXR2, word >> 16);
+ MCBSP_WRITE(mcbsp, DXR1, word & 0xffff);

/* We wait for the receiver to be ready */
- spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ spcr1 = MCBSP_READ(mcbsp, SPCR1);
while (!(spcr1 & RRDY)) {
- spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ spcr1 = MCBSP_READ(mcbsp, SPCR1);
if (attempts++ > 1000) {
/* We must reset the receiver */
- OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 & (~RRST));
+ MCBSP_WRITE(mcbsp, SPCR1, spcr1 & (~RRST));
udelay(10);
- OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
+ MCBSP_WRITE(mcbsp, SPCR1, spcr1 | RRST);
udelay(10);
dev_err(mcbsp->dev, "McBSP%d receiver not "
"ready\n", mcbsp->id);
@@ -823,8 +794,8 @@ int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)

/* Receiver is ready, let's read the dummy data */
if (rx_word_length > OMAP_MCBSP_WORD_16)
- word_msb = OMAP_MCBSP_READ(io_base, DRR2);
- word_lsb = OMAP_MCBSP_READ(io_base, DRR1);
+ word_msb = MCBSP_READ(mcbsp, DRR2);
+ word_lsb = MCBSP_READ(mcbsp, DRR1);

return 0;
}
@@ -834,7 +805,6 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
{
struct omap_mcbsp *mcbsp;
u32 clock_word = 0;
- void __iomem *io_base;
omap_mcbsp_word_length tx_word_length;
omap_mcbsp_word_length rx_word_length;
u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
@@ -845,7 +815,6 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
}

mcbsp = id_to_mcbsp_ptr(id);
- io_base = mcbsp->io_base;

tx_word_length = mcbsp->tx_word_length;
rx_word_length = mcbsp->rx_word_length;
@@ -854,14 +823,14 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
return -EINVAL;

/* First we wait for the transmitter to be ready */
- spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ spcr2 = MCBSP_READ(mcbsp, SPCR2);
while (!(spcr2 & XRDY)) {
- spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ spcr2 = MCBSP_READ(mcbsp, SPCR2);
if (attempts++ > 1000) {
/* We must reset the transmitter */
- OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 & (~XRST));
+ MCBSP_WRITE(mcbsp, SPCR2, spcr2 & (~XRST));
udelay(10);
- OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
+ MCBSP_WRITE(mcbsp, SPCR2, spcr2 | XRST);
udelay(10);
dev_err(mcbsp->dev, "McBSP%d transmitter not "
"ready\n", mcbsp->id);
@@ -871,18 +840,18 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)

/* We first need to enable the bus clock */
if (tx_word_length > OMAP_MCBSP_WORD_16)
- OMAP_MCBSP_WRITE(io_base, DXR2, clock_word >> 16);
- OMAP_MCBSP_WRITE(io_base, DXR1, clock_word & 0xffff);
+ MCBSP_WRITE(mcbsp, DXR2, clock_word >> 16);
+ MCBSP_WRITE(mcbsp, DXR1, clock_word & 0xffff);

/* We wait for the receiver to be ready */
- spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ spcr1 = MCBSP_READ(mcbsp, SPCR1);
while (!(spcr1 & RRDY)) {
- spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ spcr1 = MCBSP_READ(mcbsp, SPCR1);
if (attempts++ > 1000) {
/* We must reset the receiver */
- OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 & (~RRST));
+ MCBSP_WRITE(mcbsp, SPCR1, spcr1 & (~RRST));
udelay(10);
- OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
+ MCBSP_WRITE(mcbsp, SPCR1, spcr1 | RRST);
udelay(10);
dev_err(mcbsp->dev, "McBSP%d receiver not "
"ready\n", mcbsp->id);
@@ -892,8 +861,8 @@ int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)

/* Receiver is ready, there is something for us */
if (rx_word_length > OMAP_MCBSP_WORD_16)
- word_msb = OMAP_MCBSP_READ(io_base, DRR2);
- word_lsb = OMAP_MCBSP_READ(io_base, DRR1);
+ word_msb = MCBSP_READ(mcbsp, DRR2);
+ word_lsb = MCBSP_READ(mcbsp, DRR1);

word[0] = (word_lsb | (word_msb << 16));