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authorChandra shekhar <x0044955@ti.com>2008-11-21 16:39:46 -0500
committerTony Lindgren <tony@atomide.com>2008-11-21 16:39:46 -0500
commit3d522fb41ead214d9d9236ec184271633e1cfc2f (patch)
tree755125726d136eeb5ee2a574b6ebcbd97bdffafb /drivers/i2c
parentb6ee52c39999b2f3bcd9e26f0edf1f07599cf40e (diff)
i2c-omap: Add support for omap34xx
Add support for omap34xx Signed-off-by: chandra shekhar <x0044955@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-omap.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 9ae4b74f3d1a..3f7726a43125 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -156,7 +156,7 @@ static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg)
156 156
157static int omap_i2c_get_clocks(struct omap_i2c_dev *dev) 157static int omap_i2c_get_clocks(struct omap_i2c_dev *dev)
158{ 158{
159 if (cpu_is_omap16xx() || cpu_is_omap24xx()) { 159 if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
160 dev->iclk = clk_get(dev->dev, "i2c_ick"); 160 dev->iclk = clk_get(dev->dev, "i2c_ick");
161 if (IS_ERR(dev->iclk)) { 161 if (IS_ERR(dev->iclk)) {
162 dev->iclk = NULL; 162 dev->iclk = NULL;
@@ -266,7 +266,7 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
266 psc = fclk_rate / 12000000; 266 psc = fclk_rate / 12000000;
267 } 267 }
268 268
269 if (cpu_is_omap2430()) { 269 if (cpu_is_omap2430() || cpu_is_omap34xx()) {
270 270
271 /* HSI2C controller internal clk rate should be 19.2 Mhz */ 271 /* HSI2C controller internal clk rate should be 19.2 Mhz */
272 internal_clk = 19200; 272 internal_clk = 19200;
@@ -608,7 +608,8 @@ omap_i2c_isr(int this_irq, void *dev_id)
608 *dev->buf++ = w; 608 *dev->buf++ = w;
609 dev->buf_len--; 609 dev->buf_len--;
610 /* Data reg from 2430 is 8 bit wide */ 610 /* Data reg from 2430 is 8 bit wide */
611 if (!cpu_is_omap2430()) { 611 if (!cpu_is_omap2430() &&
612 !cpu_is_omap34xx()) {
612 if (dev->buf_len) { 613 if (dev->buf_len) {
613 *dev->buf++ = w >> 8; 614 *dev->buf++ = w >> 8;
614 dev->buf_len--; 615 dev->buf_len--;
@@ -646,7 +647,8 @@ omap_i2c_isr(int this_irq, void *dev_id)
646 w = *dev->buf++; 647 w = *dev->buf++;
647 dev->buf_len--; 648 dev->buf_len--;
648 /* Data reg from 2430 is 8 bit wide */ 649 /* Data reg from 2430 is 8 bit wide */
649 if (!cpu_is_omap2430()) { 650 if (!cpu_is_omap2430() &&
651 !cpu_is_omap34xx()) {
650 if (dev->buf_len) { 652 if (dev->buf_len) {
651 w |= *dev->buf++ << 8; 653 w |= *dev->buf++ << 8;
652 dev->buf_len--; 654 dev->buf_len--;
@@ -694,7 +696,7 @@ omap_i2c_probe(struct platform_device *pdev)
694 struct i2c_adapter *adap; 696 struct i2c_adapter *adap;
695 struct resource *mem, *irq, *ioarea; 697 struct resource *mem, *irq, *ioarea;
696 int r; 698 int r;
697 u32 *speed = NULL; 699 u32 speed = 0;
698 700
699 /* NOTE: driver uses the static register mapping */ 701 /* NOTE: driver uses the static register mapping */
700 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 702 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -722,11 +724,11 @@ omap_i2c_probe(struct platform_device *pdev)
722 } 724 }
723 725
724 if (pdev->dev.platform_data != NULL) 726 if (pdev->dev.platform_data != NULL)
725 speed = (u32 *) pdev->dev.platform_data; 727 speed = *(u32 *)pdev->dev.platform_data;
726 else 728 else
727 *speed = 100; /* Defualt speed */ 729 speed = 100; /* Defualt speed */
728 730
729 dev->speed = *speed; 731 dev->speed = speed;
730 dev->dev = &pdev->dev; 732 dev->dev = &pdev->dev;
731 dev->irq = irq->start; 733 dev->irq = irq->start;
732 dev->base = ioremap(mem->start, mem->end - mem->start + 1); 734 dev->base = ioremap(mem->start, mem->end - mem->start + 1);
@@ -745,7 +747,7 @@ omap_i2c_probe(struct platform_device *pdev)
745 if (cpu_is_omap15xx()) 747 if (cpu_is_omap15xx())
746 dev->rev1 = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) < 0x20; 748 dev->rev1 = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) < 0x20;
747 749
748 if (cpu_is_omap2430()) { 750 if (cpu_is_omap2430() || cpu_is_omap34xx()) {
749 u16 s; 751 u16 s;
750 752
751 /* Set up the fifo size - Get total size */ 753 /* Set up the fifo size - Get total size */