From: Subhasish <subhas...@mistralsolutions.com>
Signed-off-by: Subhasish <subhas...@mistralsolutions.com>
---
arch/arm/mach-davinci/board-da850-evm.c | 36 +++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c
b/arch/arm/mach-davinci/board-da850-evm.c
index b01fb2a..f44d184 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -45,6 +45,7 @@
#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
+#define DA850_PRU_CAN_TRX_PIN GPIO_TO_PIN(2, 0)
#define DA850_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6)
@@ -190,6 +191,41 @@ static struct platform_device *da850_evm_devices[]
__initdata = {
&da850_evm_norflash_device,
};
+const short da850_pru_can_pins[] = {
+ DA850_PRU0_R31_0, DA850_PRU1_R30_15, DA850_PRU1_R31_18,
+ -1
+};
+
+static int __init da850_evm_setup_pru_can(void)
+{
+ int ret;
+
+ if (!machine_is_davinci_da850_evm())
+ return 0;
+
+ ret = davinci_cfg_reg_list(da850_pru_can_pins);
+ if (ret)
+ pr_warning("da850_evm_init: da850_pru_can_pins mux setup"
+ "failed:%d\n", ret);
+
+ ret = davinci_cfg_reg(DA850_GPIO2_0);
+ if (ret)
+ pr_warning("da850_evm_init:GPIO(2,0) mux setup "
+ "failed\n");
+
+ /* value = 0 to enable the CAN transceiver */
+ ret = gpio_request_one(DA850_PRU_CAN_TRX_PIN, GPIOF_OUT_INIT_LOW,
"pru_can_en");
+ if (ret)
+ pr_warning("Cannot setup GPIO %d\n", DA850_PRU_CAN_TRX_PIN);
+
+ ret = da8xx_register_pru_can();
+ if (ret)
+ pr_warning("da850_evm_init: pru can registration failed:"
+ "%d\n", ret);
+ return ret;
+}
+device_initcall(da850_evm_setup_pru_can);
+
#define DA8XX_AEMIF_CE2CFG_OFFSET 0x10
#define DA8XX_AEMIF_ASIZE_16BIT 0x1
--
1.7.2.3
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