BeagleBoard-X15 uses a vtt regulator for DDR3 termination
and this is controlled by gpio7_11. Configuring gpio7_11.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
#include <usb.h>
#include <asm/omap_common.h>
#include <asm/emif.h>
#include <usb.h>
#include <asm/omap_common.h>
#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <asm/arch/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch/dra7xx_iodelay.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/clock.h>
#include <asm/arch/dra7xx_iodelay.h>
#include <asm/arch/sys_proto.h>
+/* GPIO 7_11 */
+#define GPIO_DDR_VTT_EN 203
+
const struct omap_sysinfo sysinfo = {
"Board: BeagleBoard x15\n"
};
const struct omap_sysinfo sysinfo = {
"Board: BeagleBoard x15\n"
};
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+/* VTT regulator enable */
+static inline void vtt_regulator_enable(void)
+{
+ if (omap_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
+ return;
+
+ gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
+ gpio_direction_output(GPIO_DDR_VTT_EN, 1);
+}
+
+int board_early_init_f(void)
+{
+ vtt_regulator_enable();
+ return 0;
+}
+#endif
#define CONFIG_IODELAY_RECALIBRATION
#endif
#define CONFIG_IODELAY_RECALIBRATION
#endif
+#define CONFIG_BOARD_EARLY_INIT_F
+
#define CONFIG_NR_DRAM_BANKS 2
#define CONFIG_ENV_SIZE (64 << 10)
#define CONFIG_NR_DRAM_BANKS 2
#define CONFIG_ENV_SIZE (64 << 10)