[PATCH v2 1/3] MIPS: ralink: Define PCI_IOBASE
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: 2021-06-14 10:06:21
Also in:
linux-staging
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
PCI_IOBASE is used to create VM maps for PCI I/O ports, it is required by generic PCI drivers to make memory mapped I/O range work. Hence define it for ralink architectures to be able to avoid parsing manually IO ranges in PCI generic driver code. Function 'plat_mem_setup' for ralink is using 'set_io_port_base' call using '0xa0000000' as address, so use the same address in the definition to align things. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> --- arch/mips/include/asm/mach-ralink/spaces.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 arch/mips/include/asm/mach-ralink/spaces.h
diff --git a/arch/mips/include/asm/mach-ralink/spaces.h b/arch/mips/include/asm/mach-ralink/spaces.h
new file mode 100644
index 000000000000..87d085c9ad61
--- /dev/null
+++ b/arch/mips/include/asm/mach-ralink/spaces.h@@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_MACH_RALINK_SPACES_H_ +#define __ASM_MACH_RALINK_SPACES_H_ + +#define PCI_IOBASE _AC(0xa0000000, UL) +#define PCI_IOSIZE SZ_16M +#define IO_SPACE_LIMIT (PCI_IOSIZE - 1) + +#include <asm/mach-generic/spaces.h> +#endif
--
2.25.1