Merge tag 'xilinx-for-v2021.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2021.04-rc3

qspi:
- Support for dual/quad mode
- Fix speed handling

clk:
- Add clock enable function for zynq/zynqmp/versal

gem:
- Enable clock for Versal
- Fix error path
- Fix mdio deregistration path

fpga:
- Fix buffer alignment for ZynqMP

xilinx:
- Fix reset reason clearing in ZynqMP
- Show silicon version in SPL for Zynq/ZynqMP
- Fix DTB selection for ZynqMP
- Rename zc1275 to zcu1275 to match DT name

drivers/fpga/zynqpl.c

@@ -315,7 +315,7 @@ static u32 *zynq_align_dma_buffer(u32 *buf, u32 len, u32 swap)
 		if (new_buf > buf) {
 			debug("%s: Aligned buffer is after buffer start\n",
 			      __func__);
-			new_buf -= ARCH_DMA_MINALIGN;
+			new_buf = (u32 *)((u32)new_buf - ARCH_DMA_MINALIGN);
 		}
 		printf("%s: Align buffer at %x to %x(swap %d)\n", __func__,
 		       (u32)buf, (u32)new_buf, swap);