corefile/nexys_video: Parameter fixes

This fixes up a few issues with parameters:

Only arty has "has_uart1" since we haven't added plumbing for a second UART
anywhere else. Also "uart_is_16550" was mixing on one of the nexys_video
targets, and nexys_video toplevel was missing LOG_LENGTH.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

fpga/top-nexys-video.vhdl

@@ -20,6 +20,7 @@ entity toplevel is
         SPI_FLASH_OFFSET   : integer := 10485760;
         SPI_FLASH_DEF_CKDV : natural := 1;
         SPI_FLASH_DEF_QUAD : boolean := true;
+        LOG_LENGTH         : natural := 2048;
         UART_IS_16550      : boolean := true
 	);
     port(
@@ -128,6 +129,7 @@ begin
             SPI_FLASH_OFFSET   => SPI_FLASH_OFFSET,
             SPI_FLASH_DEF_CKDV => SPI_FLASH_DEF_CKDV,
             SPI_FLASH_DEF_QUAD => SPI_FLASH_DEF_QUAD,
+            LOG_LENGTH         => LOG_LENGTH,
             UART0_IS_16550     => UART_IS_16550
 	    )
 	port map (

microwatt.core

@@ -118,7 +118,6 @@ targets:
       - disable_flatten_core
       - log_length=2048
       - uart_is_16550
-      - has_uart1
     tools:
       vivado: {part : xc7a100tcsg324-1}
     toplevel : toplevel
@@ -135,7 +134,6 @@ targets:
       - spi_flash_offset=10485760
       - log_length=2048
       - uart_is_16550
-      - has_uart1
     tools:
       vivado: {part : xc7a200tsbg484-1}
     toplevel : toplevel
@@ -151,6 +149,7 @@ targets:
       - no_bram
       - spi_flash_offset=10485760
       - log_length=2048
+      - uart_is_16550
     generate: [litedram_nexys_video]
     tools:
       vivado: {part : xc7a200tsbg484-1}
@@ -240,7 +239,6 @@ targets:
       - disable_flatten_core
       - log_length=512
       - uart_is_16550
-      - has_uart1
     tools:
       vivado: {part : xc7a35tcpg236-1}
     toplevel : toplevel