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vexpress64: compile Juno PCIe conditionally

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Only compile in PCIe support if the board really uses it. Provide
a __weak stub for the init function if e.g. FVP is being built.

Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ryan Harkin 2015-11-18 10:39:06 +00:00 • committed by Tom Rini
parent 0ee1a22b6d
commit bc8d3bc023
3 changed files with 9 additions and 3 deletions
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3
board/armltd/vexpress64/Makefile
View file

@ -5,4 +5,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := vexpress64.o pcie.o
obj-y := vexpress64.o
obj-$(CONFIG_TARGET_VEXPRESS64_JUNO) += pcie.o

2
board/armltd/vexpress64/pcie.c
View file

@ -191,7 +191,5 @@ void xr3pci_init(void)
void vexpress64_pcie_init(void)
{
#ifdef CONFIG_TARGET_VEXPRESS64_JUNO
xr3pci_init();
#endif
}

7
board/armltd/vexpress64/vexpress64.c
View file

@ -28,6 +28,13 @@ U_BOOT_DEVICE(vexpress_serials) = {
.platdata = &serial_platdata,
};
/* This function gets replaced by platforms supporting PCIe.
* The replacement function, eg. on Juno, initialises the PCIe bus.
*/
__weak void vexpress64_pcie_init(void)
{
}
int board_init(void)
{
vexpress64_pcie_init();