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Allow SPI BOOT_CLOCKS to be overridden by top level

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Our SPI controller sends 8 dummy clocks at boot which Ben
added for some Xilinx boards. This should be harmless but
it is confusing the flash testbench in the Caravel project.

Add a parameter so it can be overridden at the top level.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
This commit is contained in:
Anton Blanchard
2021-03-15 20:03:45 +11:00
committed by Anton Blanchard
parent d26a157cd7
commit 91a53d8001
1 changed files with 3 additions and 1 deletions
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4
soc.vhdl
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@@ -63,6 +63,7 @@ entity soc is
SPI_FLASH_OFFSET : integer := 0;
SPI_FLASH_DEF_CKDV : natural := 2;
SPI_FLASH_DEF_QUAD : boolean := false;
SPI_BOOT_CLOCKS : boolean := true;
LOG_LENGTH : natural := 512;
HAS_LITEETH : boolean := false;
UART0_IS_16550 : boolean := true;
@@ -764,7 +765,8 @@ begin
generic map (
DATA_LINES => SPI_FLASH_DLINES,
DEF_CLK_DIV => SPI_FLASH_DEF_CKDV,
DEF_QUAD_READ => SPI_FLASH_DEF_QUAD
DEF_QUAD_READ => SPI_FLASH_DEF_QUAD,
BOOT_CLOCKS => SPI_BOOT_CLOCKS
)
port map(
rst => rst_spi,