#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
-#include <linux/wait.h>
-#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/slab.h>
-#include <plat/dma.h>
#include <plat/mcbsp.h>
#include <plat/omap_device.h>
#include <linux/pm_runtime.h>
irqst_spcr2);
/* Writing zero to XSYNC_ERR clears the IRQ */
MCBSP_WRITE(mcbsp_tx, SPCR2, MCBSP_READ_CACHE(mcbsp_tx, SPCR2));
- } else {
- complete(&mcbsp_tx->tx_irq_completion);
}
return IRQ_HANDLED;
irqst_spcr1);
/* Writing zero to RSYNC_ERR clears the IRQ */
MCBSP_WRITE(mcbsp_rx, SPCR1, MCBSP_READ_CACHE(mcbsp_rx, SPCR1));
- } else {
- complete(&mcbsp_rx->rx_irq_completion);
}
return IRQ_HANDLED;
}
-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",
- MCBSP_READ(mcbsp_dma_tx, SPCR2));
-
- /* We can free the channels */
- omap_free_dma(mcbsp_dma_tx->dma_tx_lch);
- mcbsp_dma_tx->dma_tx_lch = -1;
-
- complete(&mcbsp_dma_tx->tx_dma_completion);
-}
-
-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",
- MCBSP_READ(mcbsp_dma_rx, SPCR2));
-
- /* We can free the channels */
- omap_free_dma(mcbsp_dma_rx->dma_rx_lch);
- mcbsp_dma_rx->dma_rx_lch = -1;
-
- complete(&mcbsp_dma_rx->rx_dma_completion);
-}
-
/*
* omap_mcbsp_config simply write a config to the
* appropriate McBSP.
static inline void omap_st_stop(struct omap_mcbsp *mcbsp) {}
#endif
-/*
- * We can choose between IRQ based or polled IO.
- * This needs to be called before omap_mcbsp_request().
- */
-int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type)
-{
- struct omap_mcbsp *mcbsp;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- spin_lock(&mcbsp->lock);
-
- if (!mcbsp->free) {
- dev_err(mcbsp->dev, "McBSP%d is currently in use\n",
- mcbsp->id);
- spin_unlock(&mcbsp->lock);
- return -EINVAL;
- }
-
- mcbsp->io_type = io_type;
-
- spin_unlock(&mcbsp->lock);
-
- return 0;
-}
-EXPORT_SYMBOL(omap_mcbsp_set_io_type);
-
int omap_mcbsp_request(unsigned int id)
{
struct omap_mcbsp *mcbsp;
MCBSP_WRITE(mcbsp, SPCR1, 0);
MCBSP_WRITE(mcbsp, SPCR2, 0);
- if (mcbsp->io_type == OMAP_MCBSP_IRQ_IO) {
- /* We need to get IRQs here */
- init_completion(&mcbsp->tx_irq_completion);
- err = request_irq(mcbsp->tx_irq, omap_mcbsp_tx_irq_handler,
- 0, "McBSP", (void *)mcbsp);
+ err = request_irq(mcbsp->tx_irq, omap_mcbsp_tx_irq_handler,
+ 0, "McBSP", (void *)mcbsp);
+ if (err != 0) {
+ dev_err(mcbsp->dev, "Unable to request TX IRQ %d "
+ "for McBSP%d\n", mcbsp->tx_irq,
+ mcbsp->id);
+ goto err_clk_disable;
+ }
+
+ if (mcbsp->rx_irq) {
+ err = request_irq(mcbsp->rx_irq,
+ omap_mcbsp_rx_irq_handler,
+ 0, "McBSP", (void *)mcbsp);
if (err != 0) {
- dev_err(mcbsp->dev, "Unable to request TX IRQ %d "
- "for McBSP%d\n", mcbsp->tx_irq,
+ dev_err(mcbsp->dev, "Unable to request RX IRQ %d "
+ "for McBSP%d\n", mcbsp->rx_irq,
mcbsp->id);
- goto err_clk_disable;
- }
-
- if (mcbsp->rx_irq) {
- init_completion(&mcbsp->rx_irq_completion);
- err = request_irq(mcbsp->rx_irq,
- omap_mcbsp_rx_irq_handler,
- 0, "McBSP", (void *)mcbsp);
- if (err != 0) {
- dev_err(mcbsp->dev, "Unable to request RX IRQ %d "
- "for McBSP%d\n", mcbsp->rx_irq,
- mcbsp->id);
- goto err_free_irq;
- }
+ goto err_free_irq;
}
}
pm_runtime_put_sync(mcbsp->dev);
- if (mcbsp->io_type == OMAP_MCBSP_IRQ_IO) {
- /* Free IRQs */
- if (mcbsp->rx_irq)
- free_irq(mcbsp->rx_irq, (void *)mcbsp);
- free_irq(mcbsp->tx_irq, (void *)mcbsp);
- }
+ if (mcbsp->rx_irq)
+ free_irq(mcbsp->rx_irq, (void *)mcbsp);
+ free_irq(mcbsp->tx_irq, (void *)mcbsp);
reg_cache = mcbsp->reg_cache;
if (cpu_is_omap34xx())
omap_st_start(mcbsp);
- mcbsp->rx_word_length = (MCBSP_READ_CACHE(mcbsp, RCR1) >> 5) & 0x7;
- mcbsp->tx_word_length = (MCBSP_READ_CACHE(mcbsp, XCR1) >> 5) & 0x7;
-
/* Only enable SRG, if McBSP is master */
w = MCBSP_READ_CACHE(mcbsp, PCR0);
if (w & (FSXM | FSRM | CLKXM | CLKRM))
}
EXPORT_SYMBOL(omap_mcbsp_stop);
-/* polled mcbsp i/o operations */
-int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
-{
- struct omap_mcbsp *mcbsp;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
-
- mcbsp = id_to_mcbsp_ptr(id);
-
- MCBSP_WRITE(mcbsp, DXR1, buf);
- /* if frame sync error - clear the error */
- if (MCBSP_READ(mcbsp, SPCR2) & XSYNC_ERR) {
- /* clear error */
- MCBSP_WRITE(mcbsp, SPCR2, MCBSP_READ_CACHE(mcbsp, SPCR2));
- /* resend */
- return -1;
- } else {
- /* wait for transmit confirmation */
- int attemps = 0;
- while (!(MCBSP_READ(mcbsp, SPCR2) & XRDY)) {
- if (attemps++ > 1000) {
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) &
- (~XRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) |
- (XRST));
- udelay(10);
- dev_err(mcbsp->dev, "Could not write to"
- " McBSP%d Register\n", mcbsp->id);
- return -2;
- }
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL(omap_mcbsp_pollwrite);
-
-int omap_mcbsp_pollread(unsigned int id, u16 *buf)
-{
- struct omap_mcbsp *mcbsp;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- /* if frame sync error - clear the error */
- if (MCBSP_READ(mcbsp, SPCR1) & RSYNC_ERR) {
- /* clear error */
- MCBSP_WRITE(mcbsp, SPCR1, MCBSP_READ_CACHE(mcbsp, SPCR1));
- /* resend */
- return -1;
- } else {
- /* wait for receive confirmation */
- int attemps = 0;
- while (!(MCBSP_READ(mcbsp, SPCR1) & RRDY)) {
- if (attemps++ > 1000) {
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) &
- (~RRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) |
- (RRST));
- udelay(10);
- dev_err(mcbsp->dev, "Could not read from"
- " McBSP%d Register\n", mcbsp->id);
- return -2;
- }
- }
- }
- *buf = MCBSP_READ(mcbsp, DRR1);
-
- return 0;
-}
-EXPORT_SYMBOL(omap_mcbsp_pollread);
-
-/*
- * IRQ based word transmission.
- */
-void omap_mcbsp_xmit_word(unsigned int id, u32 word)
-{
- struct omap_mcbsp *mcbsp;
- omap_mcbsp_word_length word_length;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return;
- }
-
- mcbsp = id_to_mcbsp_ptr(id);
- word_length = mcbsp->tx_word_length;
-
- wait_for_completion(&mcbsp->tx_irq_completion);
-
- if (word_length > OMAP_MCBSP_WORD_16)
- 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;
- u16 word_lsb, word_msb = 0;
- omap_mcbsp_word_length word_length;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- word_length = mcbsp->rx_word_length;
-
- wait_for_completion(&mcbsp->rx_irq_completion);
-
- if (word_length > OMAP_MCBSP_WORD_16)
- word_msb = MCBSP_READ(mcbsp, DRR2);
- word_lsb = MCBSP_READ(mcbsp, DRR1);
-
- return (word_lsb | (word_msb << 16));
-}
-EXPORT_SYMBOL(omap_mcbsp_recv_word);
-
-int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
-{
- struct omap_mcbsp *mcbsp;
- omap_mcbsp_word_length tx_word_length;
- omap_mcbsp_word_length rx_word_length;
- u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
- tx_word_length = mcbsp->tx_word_length;
- rx_word_length = mcbsp->rx_word_length;
-
- if (tx_word_length != rx_word_length)
- return -EINVAL;
-
- /* First we wait for the transmitter to be ready */
- spcr2 = MCBSP_READ(mcbsp, SPCR2);
- while (!(spcr2 & XRDY)) {
- spcr2 = MCBSP_READ(mcbsp, SPCR2);
- if (attempts++ > 1000) {
- /* We must reset the transmitter */
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) & (~XRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) | XRST);
- udelay(10);
- dev_err(mcbsp->dev, "McBSP%d transmitter not "
- "ready\n", mcbsp->id);
- return -EAGAIN;
- }
- }
-
- /* Now we can push the data */
- if (tx_word_length > OMAP_MCBSP_WORD_16)
- MCBSP_WRITE(mcbsp, DXR2, word >> 16);
- MCBSP_WRITE(mcbsp, DXR1, word & 0xffff);
-
- /* We wait for the receiver to be ready */
- spcr1 = MCBSP_READ(mcbsp, SPCR1);
- while (!(spcr1 & RRDY)) {
- spcr1 = MCBSP_READ(mcbsp, SPCR1);
- if (attempts++ > 1000) {
- /* We must reset the receiver */
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) & (~RRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) | RRST);
- udelay(10);
- dev_err(mcbsp->dev, "McBSP%d receiver not "
- "ready\n", mcbsp->id);
- return -EAGAIN;
- }
- }
-
- /* Receiver is ready, let's read the dummy data */
- if (rx_word_length > OMAP_MCBSP_WORD_16)
- word_msb = MCBSP_READ(mcbsp, DRR2);
- word_lsb = MCBSP_READ(mcbsp, DRR1);
-
- return 0;
-}
-EXPORT_SYMBOL(omap_mcbsp_spi_master_xmit_word_poll);
-
-int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 *word)
-{
- struct omap_mcbsp *mcbsp;
- u32 clock_word = 0;
- omap_mcbsp_word_length tx_word_length;
- omap_mcbsp_word_length rx_word_length;
- u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
-
- mcbsp = id_to_mcbsp_ptr(id);
-
- tx_word_length = mcbsp->tx_word_length;
- rx_word_length = mcbsp->rx_word_length;
-
- if (tx_word_length != rx_word_length)
- return -EINVAL;
-
- /* First we wait for the transmitter to be ready */
- spcr2 = MCBSP_READ(mcbsp, SPCR2);
- while (!(spcr2 & XRDY)) {
- spcr2 = MCBSP_READ(mcbsp, SPCR2);
- if (attempts++ > 1000) {
- /* We must reset the transmitter */
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) & (~XRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR2,
- MCBSP_READ_CACHE(mcbsp, SPCR2) | XRST);
- udelay(10);
- dev_err(mcbsp->dev, "McBSP%d transmitter not "
- "ready\n", mcbsp->id);
- return -EAGAIN;
- }
- }
-
- /* We first need to enable the bus clock */
- if (tx_word_length > OMAP_MCBSP_WORD_16)
- MCBSP_WRITE(mcbsp, DXR2, clock_word >> 16);
- MCBSP_WRITE(mcbsp, DXR1, clock_word & 0xffff);
-
- /* We wait for the receiver to be ready */
- spcr1 = MCBSP_READ(mcbsp, SPCR1);
- while (!(spcr1 & RRDY)) {
- spcr1 = MCBSP_READ(mcbsp, SPCR1);
- if (attempts++ > 1000) {
- /* We must reset the receiver */
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) & (~RRST));
- udelay(10);
- MCBSP_WRITE(mcbsp, SPCR1,
- MCBSP_READ_CACHE(mcbsp, SPCR1) | RRST);
- udelay(10);
- dev_err(mcbsp->dev, "McBSP%d receiver not "
- "ready\n", mcbsp->id);
- return -EAGAIN;
- }
- }
-
- /* Receiver is ready, there is something for us */
- if (rx_word_length > OMAP_MCBSP_WORD_16)
- word_msb = MCBSP_READ(mcbsp, DRR2);
- word_lsb = MCBSP_READ(mcbsp, DRR1);
-
- word[0] = (word_lsb | (word_msb << 16));
-
- return 0;
-}
-EXPORT_SYMBOL(omap_mcbsp_spi_master_recv_word_poll);
-
/*
- * Simple DMA based buffer rx/tx routines.
- * Nothing fancy, just a single buffer tx/rx through DMA.
- * The DMA resources are released once the transfer is done.
- * For anything fancier, you should use your own customized DMA
- * routines and callbacks.
+ * The following functions are only required on an OMAP1-only build.
+ * mach-omap2/mcbsp.c contains the real functions
*/
-int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer,
- unsigned int length)
+#ifndef CONFIG_ARCH_OMAP2PLUS
+int omap2_mcbsp_set_clks_src(u8 id, u8 fck_src_id)
{
- struct omap_mcbsp *mcbsp;
- int dma_tx_ch;
- int src_port = 0;
- int dest_port = 0;
- int sync_dev = 0;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- if (omap_request_dma(mcbsp->dma_tx_sync, "McBSP TX",
- omap_mcbsp_tx_dma_callback,
- mcbsp,
- &dma_tx_ch)) {
- dev_err(mcbsp->dev, " Unable to request DMA channel for "
- "McBSP%d TX. Trying IRQ based TX\n",
- mcbsp->id);
- return -EAGAIN;
- }
- mcbsp->dma_tx_lch = dma_tx_ch;
-
- dev_err(mcbsp->dev, "McBSP%d TX DMA on channel %d\n", mcbsp->id,
- dma_tx_ch);
-
- init_completion(&mcbsp->tx_dma_completion);
-
- if (cpu_class_is_omap1()) {
- src_port = OMAP_DMA_PORT_TIPB;
- dest_port = OMAP_DMA_PORT_EMIFF;
- }
- if (cpu_class_is_omap2())
- sync_dev = mcbsp->dma_tx_sync;
-
- omap_set_dma_transfer_params(mcbsp->dma_tx_lch,
- OMAP_DMA_DATA_TYPE_S16,
- length >> 1, 1,
- OMAP_DMA_SYNC_ELEMENT,
- sync_dev, 0);
-
- omap_set_dma_dest_params(mcbsp->dma_tx_lch,
- src_port,
- OMAP_DMA_AMODE_CONSTANT,
- mcbsp->phys_base + OMAP_MCBSP_REG_DXR1,
- 0, 0);
-
- omap_set_dma_src_params(mcbsp->dma_tx_lch,
- dest_port,
- OMAP_DMA_AMODE_POST_INC,
- buffer,
- 0, 0);
-
- omap_start_dma(mcbsp->dma_tx_lch);
- wait_for_completion(&mcbsp->tx_dma_completion);
-
- return 0;
+ WARN(1, "%s: should never be called on an OMAP1-only kernel\n",
+ __func__);
+ return -EINVAL;
}
-EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);
-int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer,
- unsigned int length)
+void omap2_mcbsp1_mux_clkr_src(u8 mux)
{
- struct omap_mcbsp *mcbsp;
- int dma_rx_ch;
- int src_port = 0;
- int dest_port = 0;
- int sync_dev = 0;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return -ENODEV;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- if (omap_request_dma(mcbsp->dma_rx_sync, "McBSP RX",
- omap_mcbsp_rx_dma_callback,
- mcbsp,
- &dma_rx_ch)) {
- dev_err(mcbsp->dev, "Unable to request DMA channel for "
- "McBSP%d RX. Trying IRQ based RX\n",
- mcbsp->id);
- return -EAGAIN;
- }
- mcbsp->dma_rx_lch = dma_rx_ch;
-
- dev_err(mcbsp->dev, "McBSP%d RX DMA on channel %d\n", mcbsp->id,
- dma_rx_ch);
-
- init_completion(&mcbsp->rx_dma_completion);
-
- if (cpu_class_is_omap1()) {
- src_port = OMAP_DMA_PORT_TIPB;
- dest_port = OMAP_DMA_PORT_EMIFF;
- }
- if (cpu_class_is_omap2())
- sync_dev = mcbsp->dma_rx_sync;
-
- omap_set_dma_transfer_params(mcbsp->dma_rx_lch,
- OMAP_DMA_DATA_TYPE_S16,
- length >> 1, 1,
- OMAP_DMA_SYNC_ELEMENT,
- sync_dev, 0);
-
- omap_set_dma_src_params(mcbsp->dma_rx_lch,
- src_port,
- OMAP_DMA_AMODE_CONSTANT,
- mcbsp->phys_base + OMAP_MCBSP_REG_DRR1,
- 0, 0);
-
- omap_set_dma_dest_params(mcbsp->dma_rx_lch,
- dest_port,
- OMAP_DMA_AMODE_POST_INC,
- buffer,
- 0, 0);
-
- omap_start_dma(mcbsp->dma_rx_lch);
- wait_for_completion(&mcbsp->rx_dma_completion);
-
- return 0;
+ WARN(1, "%s: should never be called on an OMAP1-only kernel\n",
+ __func__);
+ return;
}
-EXPORT_SYMBOL(omap_mcbsp_recv_buffer);
-/*
- * SPI wrapper.
- * Since SPI setup is much simpler than the generic McBSP one,
- * this wrapper just need an omap_mcbsp_spi_cfg structure as an input.
- * Once this is done, you can call omap_mcbsp_start().
- */
-void omap_mcbsp_set_spi_mode(unsigned int id,
- const struct omap_mcbsp_spi_cfg *spi_cfg)
+void omap2_mcbsp1_mux_fsr_src(u8 mux)
{
- struct omap_mcbsp *mcbsp;
- struct omap_mcbsp_reg_cfg mcbsp_cfg;
-
- if (!omap_mcbsp_check_valid_id(id)) {
- printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
- return;
- }
- mcbsp = id_to_mcbsp_ptr(id);
-
- memset(&mcbsp_cfg, 0, sizeof(struct omap_mcbsp_reg_cfg));
-
- /* SPI has only one frame */
- mcbsp_cfg.rcr1 |= (RWDLEN1(spi_cfg->word_length) | RFRLEN1(0));
- mcbsp_cfg.xcr1 |= (XWDLEN1(spi_cfg->word_length) | XFRLEN1(0));
-
- /* Clock stop mode */
- if (spi_cfg->clk_stp_mode == OMAP_MCBSP_CLK_STP_MODE_NO_DELAY)
- mcbsp_cfg.spcr1 |= (1 << 12);
- else
- mcbsp_cfg.spcr1 |= (3 << 11);
-
- /* Set clock parities */
- if (spi_cfg->rx_clock_polarity == OMAP_MCBSP_CLK_RISING)
- mcbsp_cfg.pcr0 |= CLKRP;
- else
- mcbsp_cfg.pcr0 &= ~CLKRP;
-
- if (spi_cfg->tx_clock_polarity == OMAP_MCBSP_CLK_RISING)
- mcbsp_cfg.pcr0 &= ~CLKXP;
- else
- mcbsp_cfg.pcr0 |= CLKXP;
-
- /* Set SCLKME to 0 and CLKSM to 1 */
- mcbsp_cfg.pcr0 &= ~SCLKME;
- mcbsp_cfg.srgr2 |= CLKSM;
-
- /* Set FSXP */
- if (spi_cfg->fsx_polarity == OMAP_MCBSP_FS_ACTIVE_HIGH)
- mcbsp_cfg.pcr0 &= ~FSXP;
- else
- mcbsp_cfg.pcr0 |= FSXP;
-
- if (spi_cfg->spi_mode == OMAP_MCBSP_SPI_MASTER) {
- mcbsp_cfg.pcr0 |= CLKXM;
- mcbsp_cfg.srgr1 |= CLKGDV(spi_cfg->clk_div - 1);
- mcbsp_cfg.pcr0 |= FSXM;
- mcbsp_cfg.srgr2 &= ~FSGM;
- mcbsp_cfg.xcr2 |= XDATDLY(1);
- mcbsp_cfg.rcr2 |= RDATDLY(1);
- } else {
- mcbsp_cfg.pcr0 &= ~CLKXM;
- mcbsp_cfg.srgr1 |= CLKGDV(1);
- mcbsp_cfg.pcr0 &= ~FSXM;
- mcbsp_cfg.xcr2 &= ~XDATDLY(3);
- mcbsp_cfg.rcr2 &= ~RDATDLY(3);
- }
-
- mcbsp_cfg.xcr2 &= ~XPHASE;
- mcbsp_cfg.rcr2 &= ~RPHASE;
-
- omap_mcbsp_config(id, &mcbsp_cfg);
+ WARN(1, "%s: should never be called on an OMAP1-only kernel\n",
+ __func__);
+ return;
}
-EXPORT_SYMBOL(omap_mcbsp_set_spi_mode);
+#endif
#ifdef CONFIG_ARCH_OMAP3
#define max_thres(m) (mcbsp->pdata->buffer_size)
spin_lock_init(&mcbsp->lock);
mcbsp->id = id + 1;
mcbsp->free = true;
- mcbsp->dma_tx_lch = -1;
- mcbsp->dma_rx_lch = -1;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu");
if (!res) {
else
mcbsp->phys_dma_base = res->start;
- /* Default I/O is IRQ based */
- mcbsp->io_type = OMAP_MCBSP_IRQ_IO;
-
mcbsp->tx_irq = platform_get_irq_byname(pdev, "tx");
mcbsp->rx_irq = platform_get_irq_byname(pdev, "rx");
git.openpandora.org / pandora-kernel.git / blobdiff