CAN module on AM3517 requires programming of IO expander
as part of init sequence. Added transceiver_switch
callback to handle this.
Signed-off-by: Sriramakrishnan <srk@xxxxxx>
Reviewed-by: Vaibhav Hiremath <hvaibhav@xxxxxx>
Signed-off-by: Abhilash K V <abhilash.kv@xxxxxx>
---
arch/arm/mach-omap2/board-am3517evm.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 2e4aad2..782d72d 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -734,6 +734,23 @@ static struct omap_board_mux board_mux[] __initdata = {
};
#endif
+/*
+ * HECC information
+ */
+
+#define CAN_STB 214
+static void hecc_phy_control(int on)
+{
+ int r;
+
+ r = gpio_request(CAN_STB, "can_stb");
+ if (r) {
+ printk(KERN_ERR "failed to get can_stb \n");
+ return;
+ }
+
+ gpio_direction_output(CAN_STB, (on==1)?0:1);
+}
static struct resource am3517_hecc_resources[] = {
{
@@ -762,6 +779,7 @@ static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
.int_line = AM35XX_HECC_INT_LINE,
.version = AM35XX_HECC_VERSION,
+ .transceiver_switch = hecc_phy_control,
};
static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
--
1.6.2.4
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