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authorSteven J. Hill <steven.hill@cavium.com>2016-07-09 05:45:01 +0300
committerRalf Baechle <ralf@linux-mips.org>2016-07-11 19:00:36 +0300
commit1685ddbe35cd4637f7f841d5f9755dd0470bd68d (patch)
treeef3086eefe2c03d877a1281a986030ec07d7d6eb /arch/mips/cavium-octeon/setup.c
parentacd168c0bf2ce709f056a6b1bf21634b1207d7a5 (diff)
downloadlinux-1685ddbe35cd4637f7f841d5f9755dd0470bd68d.tar.xz
MIPS: Octeon: Changes to support readq()/writeq() usage.
Update OCTEON port mangling code to support readq() and writeq() functions to allow driver code to be more portable. Updates also for word and long function pairs. We also remove SWAP_IO_SPACE for OCTEON platforms as the function macros are redundant with the new mangling code. Signed-off-by: Steven J. Hill <steven.hill@cavium.com> Acked-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13780/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cavium-octeon/setup.c')
-rw-r--r--arch/mips/cavium-octeon/setup.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 64f852b063a8..cb16fcc5f8f0 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -40,9 +40,27 @@
#include <asm/octeon/octeon.h>
#include <asm/octeon/pci-octeon.h>
-#include <asm/octeon/cvmx-mio-defs.h>
#include <asm/octeon/cvmx-rst-defs.h>
+/*
+ * TRUE for devices having registers with little-endian byte
+ * order, FALSE for registers with native-endian byte order.
+ * PCI mandates little-endian, USB and SATA are configuraable,
+ * but we chose little-endian for these.
+ */
+const bool octeon_should_swizzle_table[256] = {
+ [0x00] = true, /* bootbus/CF */
+ [0x1b] = true, /* PCI mmio window */
+ [0x1c] = true, /* PCI mmio window */
+ [0x1d] = true, /* PCI mmio window */
+ [0x1e] = true, /* PCI mmio window */
+ [0x68] = true, /* OCTEON III USB */
+ [0x69] = true, /* OCTEON III USB */
+ [0x6c] = true, /* OCTEON III SATA */
+ [0x6f] = true, /* OCTEON II USB */
+};
+EXPORT_SYMBOL(octeon_should_swizzle_table);
+
#ifdef CONFIG_PCI
extern void pci_console_init(const char *arg);
#endif