diff mbox series

[v4,4/8] mips: octeon: cpu.c: Add table for selective swapping

Message ID 20200824110443.71860-5-sr@denx.de
State Accepted
Commit fd569c878bb145c5ff55b0f4ecfd9f457d26e178
Delegated to: Daniel Schwierzeck
Headers show
Series mips/usb: Add Octeon xHCI USB support | expand

Commit Message

Stefan Roese Aug. 24, 2020, 11:04 a.m. UTC 
Import octeon_should_swizzle_table[] which is needed for the area
specific swapping. It will be used by the platform specific
mangle-port.h header.

Imported from Linux v5.7.

Signed-off-by: Stefan Roese <sr@denx.de>
---

(no changes since v1)

 arch/mips/mach-octeon/cpu.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/arch/mips/mach-octeon/cpu.c b/arch/mips/mach-octeon/cpu.c
index 2680a2e6ed..6f87a4ef8c 100644
--- a/arch/mips/mach-octeon/cpu.c
+++ b/arch/mips/mach-octeon/cpu.c
@@ -13,6 +13,27 @@ 
 
 DECLARE_GLOBAL_DATA_PTR;
 
+/*
+ * 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 configurable,
+ * but we chose little-endian for these.
+ *
+ * This table will be referened in the Octeon platform specific
+ * mangle-port.h header.
+ */
+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 */
+};
+
 static int get_clocks(void)
 {
 	const u64 ref_clock = PLL_REF_CLK;