Merge tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "The main MIPS changes for 5.5:

   - Atomics-related code sees some rework & cleanup, most notably
     allowing Loongson LL/SC errata workarounds to be more bulletproof &
     their correctness to be checked at build time.

   - Command line setup code is simplified somewhat, resolving various
     corner cases.

   - MIPS kernels can now be built with kcov code coverage support.

   - We can now build with CONFIG_FORTIFY_SOURCE=y.

   - Miscellaneous cleanups.

  And some platform specific changes:

   - We now disable some broken TLB functionality on certain Ingenic
     systems, and JZ4780 systems gain some devicetree nodes to support
     more devices.

   - Loongson support sees a number of cleanups, and we gain initial
     support for Loongson 3A R4 systems.

   - We gain support for MediaTek MT7688-based GARDENA Smart Gateway
     systems.

   - SGI IP27 (Origin 2*) see a number of fixes, cleanups &
     simplifications.

   - SGI IP30 (Octane) systems are now supported"

* tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits)
  MIPS: SGI-IP27: Enable ethernet phy on second Origin 200 module
  MIPS: PCI: Fix fake subdevice ID for IOC3
  MIPS: Ingenic: Disable abandoned HPTLB function.
  MIPS: PCI: remember nasid changed by set interrupt affinity
  MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter
  mips: add support for folded p4d page tables
  mips: drop __pXd_offset() macros that duplicate pXd_index() ones
  mips: fix build when "48 bits virtual memory" is enabled
  MIPS: math-emu: Reuse name array in debugfs_fpuemu()
  MIPS: allow building with kcov coverage
  MIPS: Loongson64: Drop setup_pcimap
  MIPS: Loongson2ef: Convert to early_printk_8250
  MIPS: Drop CPU_SUPPORTS_UNCACHED_ACCELERATED
  MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdline
  MIPS: Drop pmon.h
  MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usage
  MIPS: Loongson: Rename LOONGSON1 to LOONGSON32
  MIPS: Loongson: Fix return value of loongson_hwmon_init
  MIPS: add support for SGI Octane (IP30)
  MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge common
  ...

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 7fddcb8350c6..ea830783d663 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -91,7 +91,9 @@
 #define PRID_IMP_LOONGSON_32	0x4200  /* Loongson-1 */
 #define PRID_IMP_R5432		0x5400
 #define PRID_IMP_R5500		0x5500
-#define PRID_IMP_LOONGSON_64	0x6300  /* Loongson-2/3 */
+#define PRID_IMP_LOONGSON_64R	0x6100  /* Reduced Loongson-2 */
+#define PRID_IMP_LOONGSON_64C	0x6300  /* Classic Loongson-2 and Loongson-3 */
+#define PRID_IMP_LOONGSON_64G	0xc000  /* Generic Loongson-2 and Loongson-3 */
 
 #define PRID_IMP_UNKNOWN	0xff00
 
@@ -310,15 +312,15 @@ enum cpu_type_enum {
 	 */
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
 	CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
-	CPU_BMIPS4380, CPU_BMIPS5000, CPU_XBURST, CPU_LOONGSON1, CPU_M14KC,
+	CPU_BMIPS4380, CPU_BMIPS5000, CPU_XBURST, CPU_LOONGSON32, CPU_M14KC,
 	CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K,
 	CPU_M5150, CPU_I6400, CPU_P6600, CPU_M6250,
 
 	/*
 	 * MIPS64 class processors
 	 */
-	CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
-	CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
+	CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2EF,
+	CPU_LOONGSON64, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
 	CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP, CPU_I6500,
 
 	CPU_QEMU_GENERIC,