* According to the cs5536 spec, to set GPIO14 to SMB_CLK we must
* simultaneously set AUX1 IN/OUT to GPIO14; ditto for SMB_DATA and
* GPIO15.
- */
+ */
cs5535_gpio_set(OLPC_GPIO_SMB_CLK, GPIO_OUTPUT_VAL);
cs5535_gpio_set(OLPC_GPIO_SMB_DATA, GPIO_OUTPUT_VAL);
cs5535_gpio_set(OLPC_GPIO_SMB_CLK, GPIO_OUTPUT_ENABLE);
#include "olpc_dcon.h"
/* Hardware setup on the XO 1.5:
- * DCONLOAD connects to
- * VX855_GPIO1 (not SMBCK2)
- * DCONBLANK connects to VX855_GPIO8 (not SSPICLK) unused in driver
+ * DCONLOAD connects to VX855_GPIO1 (not SMBCK2)
+ * DCONBLANK connects to VX855_GPIO8 (not SSPICLK) unused in driver
* DCONSTAT0 connects to VX855_GPI10 (not SSPISDI)
* DCONSTAT1 connects to VX855_GPI11 (not nSSPISS)
* DCONIRQ connects to VX855_GPIO12
* DCONSMBCLK connects to VX855 graphics CRTSPCLK
*/
-#define VX855_GENL_PURPOSE_OUTPUT 0x44c // PMIO_Rx4c-4f
-#define VX855_GPI_STATUS_CHG 0x450 // PMIO_Rx50
-#define VX855_GPI_SCI_SMI 0x452 // PMIO_Rx52
+#define VX855_GENL_PURPOSE_OUTPUT 0x44c /* PMIO_Rx4c-4f */
+#define VX855_GPI_STATUS_CHG 0x450 /* PMIO_Rx50 */
+#define VX855_GPI_SCI_SMI 0x452 /* PMIO_Rx52 */
#define BIT_GPIO12 0x40
#define PREFIX "OLPC DCON:"
unsigned int irq;
u_int8_t tmp;
struct pci_dev *pdev;
-
-
+
pdev = pci_get_device(PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_VX855, NULL);
if (!pdev) {
* state machine to reset to a (sane) initial state. Mitch Bradley
* did some testing and discovered that holding for 16 SMB_CLK cycles
* worked a lot more reliably, so that's what we do here.
- */
+ */
set_i2c_line(1, 1);
for (x = 0; x < 16; x++) {
static u8 dcon_read_status_xo_1_5(void)
{
u8 status;
-
+
if (!dcon_was_irq())
return -1;
- // i believe this is the same as "inb(0x44b) & 3"
+ /* i believe this is the same as "inb(0x44b) & 3" */
status = gpio_get_value(VX855_GPI(10));
- status |= gpio_get_value(VX855_GPI(11)) << 1;
+ status |= gpio_get_value(VX855_GPI(11)) << 1;
dcon_clear_irq();