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AMB - AXI MBUS address decoding
-------------------------------
AXI to M-bridge decoding unit driver for Marvell Armada 8K and 8K+ SoCs.
- The Runit offers a second level of address windows lookup. It is used to map transaction towards
the CD BootROM, SPI0, SPI1 and Device bus (NOR).
- The Runit contains eight configurable windows. Each window defines a contiguous,
address space and the properties associated with that address space.
Unit Bank ATTR
Device-Bus DEV_BOOT_CS 0x2F
DEV_CS0 0x3E
DEV_CS1 0x3D
DEV_CS2 0x3B
DEV_CS3 0x37
SPI-0 SPI_A_CS0 0x1E
SPI_A_CS1 0x5E
SPI_A_CS2 0x9E
SPI_A_CS3 0xDE
SPI_A_CS4 0x1F
SPI_A_CS5 0x5F
SPI_A_CS6 0x9F
SPI_A_CS7 0xDF
SPI1 SPI_B_CS0 0x1A
SPI_B_CS1 0x5A
SPI_B_CS2 0x9A
SPI_B_CS3 0xDA
BOOT_ROM BOOT_ROM 0x1D
UART UART 0x01
Mandatory functions:
- marvell_get_amb_memory_map
returns the AMB windows configuration and the number of windows
Mandatory structures:
amb_memory_map - Array that include the configuration of the windows
every window/entry is a struct which has 2 parameters:
- base address of the window
- Attribute of the window
Examples:
struct addr_map_win amb_memory_map[] = {
{0xf900, AMB_DEV_CS0_ID},
};