ARM: am43xx: Enable QUAD read and EDMA support for ti_qspi

Enable TI_EDMA3 and QUAD read support for ti_qspi on am43xx, this
increases read performance to 4 MB/s.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>

arch/arm/include/asm/arch-am33xx/hardware_am43xx.h

@@ -98,4 +98,7 @@
 
 #define NUM_CRYSTAL_FREQ			0x4
 
+/* EDMA3 Base Address */
+#define EDMA3_BASE				0x49000000
+
 #endif /* __AM43XX_HARDWARE_AM43XX_H */

include/configs/am43xx_evm.h

@@ -231,6 +231,8 @@
 #define CONFIG_QSPI_SEL_GPIO                   48
 #define CONFIG_SF_DEFAULT_SPEED                48000000
 #define CONFIG_DEFAULT_SPI_MODE                SPI_MODE_3
+#define CONFIG_QSPI_QUAD_SUPPORT
+#define CONFIG_TI_EDMA3
 
 /* Enhance our eMMC support / experience. */
 #define CONFIG_CMD_GPT