This patchset adds basic support for the MIPS Common Device Memory Map Memory (CDMM) region in the form of a bus in the standard Linux device model. Since the CDMM region is a feature of the MIPS architecture (since around MIPSr2) the first patch adds the necessary definitions and probing to arch/mips. The second patch adds the actual bus driver (see that patch for lots more info). The final patch just enables CDMM to work on Malta. Futher patches will follow soon to add TTY/Console/KGDB support for the EJTAG Fast Debug Channel (FDC) device which is found in the CDMM region. Changes in v2: - Fix typo in definition of MIPS_CPU_CDMM, s/0ll/ull (Maciej). - Fix some checkpatch errors. - Correct CDMM name in various places. It is "Common Device Memory Map", rather than "Common Device Mapped Memory" (which for some reason had got stuck in my head). Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx James Hogan (3): MIPS: Add arch CDMM definitions and probing MIPS: Add CDMM bus support MIPS: Malta: Implement mips_cdmm_phys_base() arch/mips/include/asm/cdmm.h | 87 +++++ arch/mips/include/asm/cpu-features.h | 4 + arch/mips/include/asm/cpu.h | 1 + arch/mips/include/asm/mipsregs.h | 11 + arch/mips/kernel/cpu-probe.c | 2 + arch/mips/mti-malta/malta-memory.c | 7 + drivers/bus/Kconfig | 13 + drivers/bus/Makefile | 1 + drivers/bus/mips_cdmm.c | 711 +++++++++++++++++++++++++++++++++++ include/linux/mod_devicetable.h | 8 + scripts/mod/devicetable-offsets.c | 3 + scripts/mod/file2alias.c | 16 + 12 files changed, 864 insertions(+) create mode 100644 arch/mips/include/asm/cdmm.h create mode 100644 drivers/bus/mips_cdmm.c -- 2.0.5
