Merge tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.17. Rough overview:

   (1) generic platform: Add support for Microsemi Ocelot SoCs

   (2) crypto: Add CRC32 and CRC32C HW acceleration module

   (3) Various cleanups and misc improvements

  More detailed summary:

  Miscellaneous:
   - hang more efficiently on halt/powerdown/restart
   - pm-cps: Block system suspend when a JTAG probe is present
   - expand make help text for generic defconfigs
   - refactor handling of legacy defconfigs
   - determine the entry point from the ELF file header to fix microMIPS
     for certain toolchains
   - introduce isa-rev.h for MIPS_ISA_REV and use to simplify other code

  Minor cleanups:
   - DTS: boston/ci20: Unit name cleanups and correction
   - kdump: Make the default for PHYSICAL_START always 64-bit
   - constify gpio_led in Alchemy, AR7, and TXX9
   - silence a couple of W=1 warnings
   - remove duplicate includes

  Platform support:
  Generic platform:
   - add support for Microsemi Ocelot
   - dt-bindings: Add vendor prefix for Microsemi Corporation
   - dt-bindings: Add bindings for Microsemi SoCs
   - add ocelot SoC & PCB123 board DTS files
   - MAINTAINERS: Add entry for Microsemi MIPS SoCs
   - enable crc32-mips on r6 configs

  ath79:
   - fix AR724X_PLL_REG_PCIE_CONFIG offset

  BCM47xx:
   - firmware: Use mac_pton() for MAC address parsing
   - add Luxul XAP1500/XWR1750 WiFi LEDs
   - use standard reset button for Luxul XWR-1750

  BMIPS:
   - enable CONFIG_BRCMSTB_PM in bmips_stb_defconfig for build coverage
   - add STB PM, wake-up timer, watchdog DT nodes

  Octeon:
   - drop '.' after newlines in printk calls

  ralink:
   - pci-mt7621: Enable PCIe on MT7688"

* tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (37 commits)
  MIPS: BCM47XX: Use standard reset button for Luxul XWR-1750
  MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs
  MIPS: Make the default for PHYSICAL_START always 64-bit
  MIPS: Use the entry point from the ELF file header
  MAINTAINERS: Add entry for Microsemi MIPS SoCs
  MIPS: generic: Add support for Microsemi Ocelot
  MIPS: mscc: Add ocelot PCB123 device tree
  MIPS: mscc: Add ocelot dtsi
  dt-bindings: mips: Add bindings for Microsemi SoCs
  dt-bindings: Add vendor prefix for Microsemi Corporation
  MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset
  MIPS: pci-mt7620: Enable PCIe on MT7688
  MIPS: pm-cps: Block system suspend when a JTAG probe is present
  MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
  MIPS: Hang more efficiently on halt/powerdown/restart
  FIRMWARE: bcm47xx_nvram: Replace mac address parsing
  MIPS: BMIPS: Add Broadcom STB watchdog nodes
  ...

1 files changed, 78 insertions, 0 deletions

diff --git a/arch/mips/generic/board-ocelot.c b/arch/mips/generic/board-ocelot.c
new file mode 100644
index 000000000000..06d92fb37769
--- /dev/null
+++ b/arch/mips/generic/board-ocelot.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Microsemi MIPS SoC support
+ *
+ * Copyright (c) 2017 Microsemi Corporation
+ */
+#include <asm/machine.h>
+#include <asm/prom.h>
+
+#define DEVCPU_GCB_CHIP_REGS_CHIP_ID	0x71070000
+#define CHIP_ID_PART_ID			GENMASK(27, 12)
+
+#define OCELOT_PART_ID			(0x7514 << 12)
+
+#define UART_UART			0x70100000
+
+static __init bool ocelot_detect(void)
+{
+	u32 rev;
+	int idx;
+
+	/* Look for the TLB entry set up by redboot before trying to use it */
+	write_c0_entryhi(DEVCPU_GCB_CHIP_REGS_CHIP_ID);
+	mtc0_tlbw_hazard();
+	tlb_probe();
+	tlb_probe_hazard();
+	idx = read_c0_index();
+	if (idx < 0)
+		return 0;
+
+	/* A TLB entry exists, lets assume its usable and check the CHIP ID */
+	rev = __raw_readl((void __iomem *)DEVCPU_GCB_CHIP_REGS_CHIP_ID);
+
+	if ((rev & CHIP_ID_PART_ID) != OCELOT_PART_ID)
+		return 0;
+
+	/* Copy command line from bootloader early for Initrd detection */
+	if (fw_arg0 < 10 && (fw_arg1 & 0xFFF00000) == 0x80000000) {
+		unsigned int prom_argc = fw_arg0;
+		const char **prom_argv = (const char **)fw_arg1;
+
+		if (prom_argc > 1 && strlen(prom_argv[1]) > 0)
+			/* ignore all built-in args if any f/w args given */
+			strcpy(arcs_cmdline, prom_argv[1]);
+	}
+
+	return 1;
+}
+
+static void __init ocelot_earlyprintk_init(void)
+{
+	void __iomem *uart_base;
+
+	uart_base = ioremap_nocache(UART_UART, 0x20);
+	setup_8250_early_printk_port((unsigned long)uart_base, 2, 50000);
+}
+
+static void __init ocelot_late_init(void)
+{
+	ocelot_earlyprintk_init();
+}
+
+static __init const void *ocelot_fixup_fdt(const void *fdt,
+					   const void *match_data)
+{
+	/* This has to be done so late because ioremap needs to work */
+	late_time_init = ocelot_late_init;
+
+	return fdt;
+}
+
+extern char __dtb_ocelot_pcb123_begin[];
+
+MIPS_MACHINE(ocelot) = {
+	.fdt = __dtb_ocelot_pcb123_begin,
+	.fixup_fdt = ocelot_fixup_fdt,
+	.detect = ocelot_detect,
+};