alpha: remove LCA and APECS based machines

APECS is the DECchip 21071x chipset for the EV4 and EV45 generation, while
LCA is the integrated I/O support on the corresponding low-cost alpha
machines of that generation.

All of these CPUs lack the BWX extension for byte and word access, so
drop the chipset support and all associated machines.

Acked-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

5 files changed, 4 insertions, 931 deletions

diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
deleted file mode 100644
index 69a2fc62c9c3..000000000000
--- a/arch/alpha/include/asm/core_apecs.h
+++ /dev/null
@@ -1,534 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ALPHA_APECS__H__
-#define __ALPHA_APECS__H__
-
-#include <linux/types.h>
-#include <asm/compiler.h>
-
-/*
- * APECS is the internal name for the 2107x chipset which provides
- * memory controller and PCI access for the 21064 chip based systems.
- *
- * This file is based on:
- *
- * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
- * Data Sheet
- *
- * EC-N0648-72
- *
- *
- * david.rusling@reo.mts.dec.com Initial Version.
- *
- */
-
-/*
-   An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
-   that get passed through the PCI<->ISA bridge chip. So we've gotta use
-   both windows to max out the physical memory we can DMA to. Sigh...
-
-   If we try a window at 0 for 1GB as a work-around, we run into conflicts
-   with ISA/PCI bus memory which can't be relocated, like VGA aperture and
-   BIOS ROMs. So we must put the windows high enough to avoid these areas.
-
-   We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
-   and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
-   Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
-   be used for that range (via virt_to_bus()).
-
-   Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
-   to keep virt_to_bus() from returning an address in the first window, for
-   a data area that goes beyond the 64Mb first DMA window.  Sigh...
-   The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
-   we can't just use that here, because of header file looping... :-(
-
-   Window 1 will be used for all DMA from the ISA bus; yes, that does
-   limit what memory an ISA floppy or sound card or Ethernet can touch, but
-   it's also a known limitation on other platforms as well. We use the
-   same technique that is used on INTEL platforms with similar limitation:
-   set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
-   We trust that any ISA bus device drivers will *always* ask for DMAable
-   memory explicitly via kmalloc()/get_free_pages() flags arguments.
-
-   Note that most PCI bus devices' drivers do *not* explicitly ask for
-   DMAable memory; they count on being able to DMA to any memory they
-   get from kmalloc()/get_free_pages(). They will also use window 1 for
-   any physical memory accesses below 64Mb; the rest will be handled by
-   window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
-
-   We hope that the area before the first window is large enough so that
-   there will be no overlap at the top end (64Mb). We *must* locate the
-   PCI cards' memory just below window 1, so that there's still the
-   possibility of being able to access it via SPARSE space. This is
-   important for cards such as the Matrox Millennium, whose Xserver
-   wants to access memory-mapped registers in byte and short lengths.
-
-   Note that the XL is treated differently from the AVANTI, even though
-   for most other things they are identical. It didn't seem reasonable to
-   make the AVANTI support pay for the limitations of the XL. It is true,
-   however, that an XL kernel will run on an AVANTI without problems.
-
-   %%% All of this should be obviated by the ability to route
-   everything through the iommu.
-*/
-
-/*
- * 21071-DA Control and Status registers.
- * These are used for PCI memory access.
- */
-#define APECS_IOC_DCSR                  (IDENT_ADDR + 0x1A0000000UL)
-#define APECS_IOC_PEAR                  (IDENT_ADDR + 0x1A0000020UL)
-#define APECS_IOC_SEAR                  (IDENT_ADDR + 0x1A0000040UL)
-#define APECS_IOC_DR1                   (IDENT_ADDR + 0x1A0000060UL)
-#define APECS_IOC_DR2                   (IDENT_ADDR + 0x1A0000080UL)
-#define APECS_IOC_DR3                   (IDENT_ADDR + 0x1A00000A0UL)
-
-#define APECS_IOC_TB1R                  (IDENT_ADDR + 0x1A00000C0UL)
-#define APECS_IOC_TB2R                  (IDENT_ADDR + 0x1A00000E0UL)
-
-#define APECS_IOC_PB1R                  (IDENT_ADDR + 0x1A0000100UL)
-#define APECS_IOC_PB2R                  (IDENT_ADDR + 0x1A0000120UL)
-
-#define APECS_IOC_PM1R                  (IDENT_ADDR + 0x1A0000140UL)
-#define APECS_IOC_PM2R                  (IDENT_ADDR + 0x1A0000160UL)
-
-#define APECS_IOC_HAXR0                 (IDENT_ADDR + 0x1A0000180UL)
-#define APECS_IOC_HAXR1                 (IDENT_ADDR + 0x1A00001A0UL)
-#define APECS_IOC_HAXR2                 (IDENT_ADDR + 0x1A00001C0UL)
-
-#define APECS_IOC_PMLT                  (IDENT_ADDR + 0x1A00001E0UL)
-
-#define APECS_IOC_TLBTAG0               (IDENT_ADDR + 0x1A0000200UL)
-#define APECS_IOC_TLBTAG1               (IDENT_ADDR + 0x1A0000220UL)
-#define APECS_IOC_TLBTAG2               (IDENT_ADDR + 0x1A0000240UL)
-#define APECS_IOC_TLBTAG3               (IDENT_ADDR + 0x1A0000260UL)
-#define APECS_IOC_TLBTAG4               (IDENT_ADDR + 0x1A0000280UL)
-#define APECS_IOC_TLBTAG5               (IDENT_ADDR + 0x1A00002A0UL)
-#define APECS_IOC_TLBTAG6               (IDENT_ADDR + 0x1A00002C0UL)
-#define APECS_IOC_TLBTAG7               (IDENT_ADDR + 0x1A00002E0UL)
-
-#define APECS_IOC_TLBDATA0              (IDENT_ADDR + 0x1A0000300UL)
-#define APECS_IOC_TLBDATA1              (IDENT_ADDR + 0x1A0000320UL)
-#define APECS_IOC_TLBDATA2              (IDENT_ADDR + 0x1A0000340UL)
-#define APECS_IOC_TLBDATA3              (IDENT_ADDR + 0x1A0000360UL)
-#define APECS_IOC_TLBDATA4              (IDENT_ADDR + 0x1A0000380UL)
-#define APECS_IOC_TLBDATA5              (IDENT_ADDR + 0x1A00003A0UL)
-#define APECS_IOC_TLBDATA6              (IDENT_ADDR + 0x1A00003C0UL)
-#define APECS_IOC_TLBDATA7              (IDENT_ADDR + 0x1A00003E0UL)
-
-#define APECS_IOC_TBIA                  (IDENT_ADDR + 0x1A0000400UL)
-
-
-/*
- * 21071-CA Control and Status registers.
- * These are used to program memory timing,
- *  configure memory and initialise the B-Cache.
- */
-#define APECS_MEM_GCR		        (IDENT_ADDR + 0x180000000UL)
-#define APECS_MEM_EDSR		        (IDENT_ADDR + 0x180000040UL)
-#define APECS_MEM_TAR  		        (IDENT_ADDR + 0x180000060UL)
-#define APECS_MEM_ELAR		        (IDENT_ADDR + 0x180000080UL)
-#define APECS_MEM_EHAR  		(IDENT_ADDR + 0x1800000a0UL)
-#define APECS_MEM_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
-#define APECS_MEM_LDxLAR 		(IDENT_ADDR + 0x1800000e0UL)
-#define APECS_MEM_LDxHAR 		(IDENT_ADDR + 0x180000100UL)
-#define APECS_MEM_GTR    		(IDENT_ADDR + 0x180000200UL)
-#define APECS_MEM_RTR    		(IDENT_ADDR + 0x180000220UL)
-#define APECS_MEM_VFPR   		(IDENT_ADDR + 0x180000240UL)
-#define APECS_MEM_PDLDR  		(IDENT_ADDR + 0x180000260UL)
-#define APECS_MEM_PDhDR  		(IDENT_ADDR + 0x180000280UL)
-
-/* Bank x Base Address Register */
-#define APECS_MEM_B0BAR  		(IDENT_ADDR + 0x180000800UL)
-#define APECS_MEM_B1BAR  		(IDENT_ADDR + 0x180000820UL)
-#define APECS_MEM_B2BAR  		(IDENT_ADDR + 0x180000840UL)
-#define APECS_MEM_B3BAR  		(IDENT_ADDR + 0x180000860UL)
-#define APECS_MEM_B4BAR  		(IDENT_ADDR + 0x180000880UL)
-#define APECS_MEM_B5BAR  		(IDENT_ADDR + 0x1800008A0UL)
-#define APECS_MEM_B6BAR  		(IDENT_ADDR + 0x1800008C0UL)
-#define APECS_MEM_B7BAR  		(IDENT_ADDR + 0x1800008E0UL)
-#define APECS_MEM_B8BAR  		(IDENT_ADDR + 0x180000900UL)
-
-/* Bank x Configuration Register */
-#define APECS_MEM_B0BCR  		(IDENT_ADDR + 0x180000A00UL)
-#define APECS_MEM_B1BCR  		(IDENT_ADDR + 0x180000A20UL)
-#define APECS_MEM_B2BCR  		(IDENT_ADDR + 0x180000A40UL)
-#define APECS_MEM_B3BCR  		(IDENT_ADDR + 0x180000A60UL)
-#define APECS_MEM_B4BCR  		(IDENT_ADDR + 0x180000A80UL)
-#define APECS_MEM_B5BCR  		(IDENT_ADDR + 0x180000AA0UL)
-#define APECS_MEM_B6BCR  		(IDENT_ADDR + 0x180000AC0UL)
-#define APECS_MEM_B7BCR  		(IDENT_ADDR + 0x180000AE0UL)
-#define APECS_MEM_B8BCR  		(IDENT_ADDR + 0x180000B00UL)
-
-/* Bank x Timing Register A */
-#define APECS_MEM_B0TRA  		(IDENT_ADDR + 0x180000C00UL)
-#define APECS_MEM_B1TRA  		(IDENT_ADDR + 0x180000C20UL)
-#define APECS_MEM_B2TRA  		(IDENT_ADDR + 0x180000C40UL)
-#define APECS_MEM_B3TRA  		(IDENT_ADDR + 0x180000C60UL)
-#define APECS_MEM_B4TRA  		(IDENT_ADDR + 0x180000C80UL)
-#define APECS_MEM_B5TRA  		(IDENT_ADDR + 0x180000CA0UL)
-#define APECS_MEM_B6TRA  		(IDENT_ADDR + 0x180000CC0UL)
-#define APECS_MEM_B7TRA  		(IDENT_ADDR + 0x180000CE0UL)
-#define APECS_MEM_B8TRA  		(IDENT_ADDR + 0x180000D00UL)
-
-/* Bank x Timing Register B */
-#define APECS_MEM_B0TRB                 (IDENT_ADDR + 0x180000E00UL)
-#define APECS_MEM_B1TRB  		(IDENT_ADDR + 0x180000E20UL)
-#define APECS_MEM_B2TRB  		(IDENT_ADDR + 0x180000E40UL)
-#define APECS_MEM_B3TRB  		(IDENT_ADDR + 0x180000E60UL)
-#define APECS_MEM_B4TRB  		(IDENT_ADDR + 0x180000E80UL)
-#define APECS_MEM_B5TRB  		(IDENT_ADDR + 0x180000EA0UL)
-#define APECS_MEM_B6TRB  		(IDENT_ADDR + 0x180000EC0UL)
-#define APECS_MEM_B7TRB  		(IDENT_ADDR + 0x180000EE0UL)
-#define APECS_MEM_B8TRB  		(IDENT_ADDR + 0x180000F00UL)
-
-
-/*
- * Memory spaces:
- */
-#define APECS_IACK_SC		        (IDENT_ADDR + 0x1b0000000UL)
-#define APECS_CONF		        (IDENT_ADDR + 0x1e0000000UL)
-#define APECS_IO			(IDENT_ADDR + 0x1c0000000UL)
-#define APECS_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
-#define APECS_DENSE_MEM		        (IDENT_ADDR + 0x300000000UL)
-
-
-/*
- * Bit definitions for I/O Controller status register 0:
- */
-#define APECS_IOC_STAT0_CMD		0xf
-#define APECS_IOC_STAT0_ERR		(1<<4)
-#define APECS_IOC_STAT0_LOST		(1<<5)
-#define APECS_IOC_STAT0_THIT		(1<<6)
-#define APECS_IOC_STAT0_TREF		(1<<7)
-#define APECS_IOC_STAT0_CODE_SHIFT	8
-#define APECS_IOC_STAT0_CODE_MASK	0x7
-#define APECS_IOC_STAT0_P_NBR_SHIFT	13
-#define APECS_IOC_STAT0_P_NBR_MASK	0x7ffff
-
-#define APECS_HAE_ADDRESS		APECS_IOC_HAXR1
-
-
-/*
- * Data structure for handling APECS machine checks:
- */
-
-struct el_apecs_mikasa_sysdata_mcheck
-{
-	unsigned long coma_gcr;
-	unsigned long coma_edsr;
-	unsigned long coma_ter;
-	unsigned long coma_elar;
-	unsigned long coma_ehar;
-	unsigned long coma_ldlr;
-	unsigned long coma_ldhr;
-	unsigned long coma_base0;
-	unsigned long coma_base1;
-	unsigned long coma_base2;
-	unsigned long coma_base3;
-	unsigned long coma_cnfg0;
-	unsigned long coma_cnfg1;
-	unsigned long coma_cnfg2;
-	unsigned long coma_cnfg3;
-	unsigned long epic_dcsr;
-	unsigned long epic_pear;
-	unsigned long epic_sear;
-	unsigned long epic_tbr1;
-	unsigned long epic_tbr2;
-	unsigned long epic_pbr1;
-	unsigned long epic_pbr2;
-	unsigned long epic_pmr1;
-	unsigned long epic_pmr2;
-	unsigned long epic_harx1;
-	unsigned long epic_harx2;
-	unsigned long epic_pmlt;
-	unsigned long epic_tag0;
-	unsigned long epic_tag1;
-	unsigned long epic_tag2;
-	unsigned long epic_tag3;
-	unsigned long epic_tag4;
-	unsigned long epic_tag5;
-	unsigned long epic_tag6;
-	unsigned long epic_tag7;
-	unsigned long epic_data0;
-	unsigned long epic_data1;
-	unsigned long epic_data2;
-	unsigned long epic_data3;
-	unsigned long epic_data4;
-	unsigned long epic_data5;
-	unsigned long epic_data6;
-	unsigned long epic_data7;
-
-	unsigned long pceb_vid;
-	unsigned long pceb_did;
-	unsigned long pceb_revision;
-	unsigned long pceb_command;
-	unsigned long pceb_status;
-	unsigned long pceb_latency;
-	unsigned long pceb_control;
-	unsigned long pceb_arbcon;
-	unsigned long pceb_arbpri;
-
-	unsigned long esc_id;
-	unsigned long esc_revision;
-	unsigned long esc_int0;
-	unsigned long esc_int1;
-	unsigned long esc_elcr0;
-	unsigned long esc_elcr1;
-	unsigned long esc_last_eisa;
-	unsigned long esc_nmi_stat;
-
-	unsigned long pci_ir;
-	unsigned long pci_imr;
-	unsigned long svr_mgr;
-};
-
-/* This for the normal APECS machines.  */
-struct el_apecs_sysdata_mcheck
-{
-	unsigned long coma_gcr;
-	unsigned long coma_edsr;
-	unsigned long coma_ter;
-	unsigned long coma_elar;
-	unsigned long coma_ehar;
-	unsigned long coma_ldlr;
-	unsigned long coma_ldhr;
-	unsigned long coma_base0;
-	unsigned long coma_base1;
-	unsigned long coma_base2;
-	unsigned long coma_cnfg0;
-	unsigned long coma_cnfg1;
-	unsigned long coma_cnfg2;
-	unsigned long epic_dcsr;
-	unsigned long epic_pear;
-	unsigned long epic_sear;
-	unsigned long epic_tbr1;
-	unsigned long epic_tbr2;
-	unsigned long epic_pbr1;
-	unsigned long epic_pbr2;
-	unsigned long epic_pmr1;
-	unsigned long epic_pmr2;
-	unsigned long epic_harx1;
-	unsigned long epic_harx2;
-	unsigned long epic_pmlt;
-	unsigned long epic_tag0;
-	unsigned long epic_tag1;
-	unsigned long epic_tag2;
-	unsigned long epic_tag3;
-	unsigned long epic_tag4;
-	unsigned long epic_tag5;
-	unsigned long epic_tag6;
-	unsigned long epic_tag7;
-	unsigned long epic_data0;
-	unsigned long epic_data1;
-	unsigned long epic_data2;
-	unsigned long epic_data3;
-	unsigned long epic_data4;
-	unsigned long epic_data5;
-	unsigned long epic_data6;
-	unsigned long epic_data7;
-};
-
-struct el_apecs_procdata
-{
-	unsigned long paltemp[32];  /* PAL TEMP REGS. */
-	/* EV4-specific fields */
-	unsigned long exc_addr;     /* Address of excepting instruction. */
-	unsigned long exc_sum;      /* Summary of arithmetic traps. */
-	unsigned long exc_mask;     /* Exception mask (from exc_sum). */
-	unsigned long iccsr;        /* IBox hardware enables. */
-	unsigned long pal_base;     /* Base address for PALcode. */
-	unsigned long hier;         /* Hardware Interrupt Enable. */
-	unsigned long hirr;         /* Hardware Interrupt Request. */
-	unsigned long csr;          /* D-stream fault info. */
-	unsigned long dc_stat;      /* D-cache status (ECC/Parity Err). */
-	unsigned long dc_addr;      /* EV3 Phys Addr for ECC/DPERR. */
-	unsigned long abox_ctl;     /* ABox Control Register. */
-	unsigned long biu_stat;     /* BIU Status. */
-	unsigned long biu_addr;     /* BUI Address. */
-	unsigned long biu_ctl;      /* BIU Control. */
-	unsigned long fill_syndrome;/* For correcting ECC errors. */
-	unsigned long fill_addr;    /* Cache block which was being read */
-	unsigned long va;           /* Effective VA of fault or miss. */
-	unsigned long bc_tag;       /* Backup Cache Tag Probe Results.*/
-};
-
-
-#ifdef __KERNEL__
-
-#ifndef __EXTERN_INLINE
-#define __EXTERN_INLINE extern inline
-#define __IO_EXTERN_INLINE
-#endif
-
-/*
- * I/O functions:
- *
- * Unlike Jensen, the APECS machines have no concept of local
- * I/O---everything goes over the PCI bus.
- *
- * There is plenty room for optimization here.  In particular,
- * the Alpha's insb/insw/extb/extw should be useful in moving
- * data to/from the right byte-lanes.
- */
-
-#define vip	volatile int __force *
-#define vuip	volatile unsigned int __force *
-#define vulp	volatile unsigned long __force *
-
-#define APECS_SET_HAE						\
-	do {							\
-		if (addr >= (1UL << 24)) {			\
-			unsigned long msb = addr & 0xf8000000;	\
-			addr -= msb;				\
-			set_hae(msb);				\
-		}						\
-	} while (0)
-
-__EXTERN_INLINE u8 apecs_ioread8(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long result, base_and_type;
-
-	if (addr >= APECS_DENSE_MEM) {
-		addr -= APECS_DENSE_MEM;
-		APECS_SET_HAE;
-		base_and_type = APECS_SPARSE_MEM + 0x00;
-	} else {
-		addr -= APECS_IO;
-		base_and_type = APECS_IO + 0x00;
-	}
-
-	result = *(vip) ((addr << 5) + base_and_type);
-	return __kernel_extbl(result, addr & 3);
-}
-
-__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long w, base_and_type;
-
-	if (addr >= APECS_DENSE_MEM) {
-		addr -= APECS_DENSE_MEM;
-		APECS_SET_HAE;
-		base_and_type = APECS_SPARSE_MEM + 0x00;
-	} else {
-		addr -= APECS_IO;
-		base_and_type = APECS_IO + 0x00;
-	}
-
-	w = __kernel_insbl(b, addr & 3);
-	*(vuip) ((addr << 5) + base_and_type) = w;
-}
-
-__EXTERN_INLINE u16 apecs_ioread16(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long result, base_and_type;
-
-	if (addr >= APECS_DENSE_MEM) {
-		addr -= APECS_DENSE_MEM;
-		APECS_SET_HAE;
-		base_and_type = APECS_SPARSE_MEM + 0x08;
-	} else {
-		addr -= APECS_IO;
-		base_and_type = APECS_IO + 0x08;
-	}
-
-	result = *(vip) ((addr << 5) + base_and_type);
-	return __kernel_extwl(result, addr & 3);
-}
-
-__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long w, base_and_type;
-
-	if (addr >= APECS_DENSE_MEM) {
-		addr -= APECS_DENSE_MEM;
-		APECS_SET_HAE;
-		base_and_type = APECS_SPARSE_MEM + 0x08;
-	} else {
-		addr -= APECS_IO;
-		base_and_type = APECS_IO + 0x08;
-	}
-
-	w = __kernel_inswl(b, addr & 3);
-	*(vuip) ((addr << 5) + base_and_type) = w;
-}
-
-__EXTERN_INLINE u32 apecs_ioread32(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < APECS_DENSE_MEM)
-		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
-	return *(vuip)addr;
-}
-
-__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < APECS_DENSE_MEM)
-		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
-	*(vuip)addr = b;
-}
-
-__EXTERN_INLINE u64 apecs_ioread64(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < APECS_DENSE_MEM)
-		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
-	return *(vulp)addr;
-}
-
-__EXTERN_INLINE void apecs_iowrite64(u64 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < APECS_DENSE_MEM)
-		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
-	*(vulp)addr = b;
-}
-
-__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
-{
-	return (void __iomem *)(addr + APECS_IO);
-}
-
-__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
-					    unsigned long size)
-{
-	return (void __iomem *)(addr + APECS_DENSE_MEM);
-}
-
-__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
-{
-	return addr >= IDENT_ADDR + 0x180000000UL;
-}
-
-__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
-{
-	return (unsigned long)addr >= APECS_DENSE_MEM;
-}
-
-#undef APECS_SET_HAE
-
-#undef vip
-#undef vuip
-#undef vulp
-
-#undef __IO_PREFIX
-#define __IO_PREFIX		apecs
-#define apecs_trivial_io_bw	0
-#define apecs_trivial_io_lq	0
-#define apecs_trivial_rw_bw	2
-#define apecs_trivial_rw_lq	1
-#define apecs_trivial_iounmap	1
-#include <asm/io_trivial.h>
-
-#ifdef __IO_EXTERN_INLINE
-#undef __EXTERN_INLINE
-#undef __IO_EXTERN_INLINE
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* __ALPHA_APECS__H__ */
diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h
deleted file mode 100644
index d8c3e72ef8f6..000000000000
--- a/arch/alpha/include/asm/core_lca.h
+++ /dev/null
@@ -1,378 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ALPHA_LCA__H__
-#define __ALPHA_LCA__H__
-
-#include <asm/compiler.h>
-#include <asm/mce.h>
-
-/*
- * Low Cost Alpha (LCA) definitions (these apply to 21066 and 21068,
- * for example).
- *
- * This file is based on:
- *
- *	DECchip 21066 and DECchip 21068 Alpha AXP Microprocessors
- *	Hardware Reference Manual; Digital Equipment Corp.; May 1994;
- *	Maynard, MA; Order Number: EC-N2681-71.
- */
-
-/*
- * NOTE: The LCA uses a Host Address Extension (HAE) register to access
- *	 PCI addresses that are beyond the first 27 bits of address
- *	 space.  Updating the HAE requires an external cycle (and
- *	 a memory barrier), which tends to be slow.  Instead of updating
- *	 it on each sparse memory access, we keep the current HAE value
- *	 cached in variable cache_hae.  Only if the cached HAE differs
- *	 from the desired HAE value do we actually updated HAE register.
- *	 The HAE register is preserved by the interrupt handler entry/exit
- *	 code, so this scheme works even in the presence of interrupts.
- *
- * Dense memory space doesn't require the HAE, but is restricted to
- * aligned 32 and 64 bit accesses.  Special Cycle and Interrupt
- * Acknowledge cycles may also require the use of the HAE.  The LCA
- * limits I/O address space to the bottom 24 bits of address space,
- * but this easily covers the 16 bit ISA I/O address space.
- */
-
-/*
- * NOTE 2! The memory operations do not set any memory barriers, as
- * it's not needed for cases like a frame buffer that is essentially
- * memory-like.  You need to do them by hand if the operations depend
- * on ordering.
- *
- * Similarly, the port I/O operations do a "mb" only after a write
- * operation: if an mb is needed before (as in the case of doing
- * memory mapped I/O first, and then a port I/O operation to the same
- * device), it needs to be done by hand.
- *
- * After the above has bitten me 100 times, I'll give up and just do
- * the mb all the time, but right now I'm hoping this will work out.
- * Avoiding mb's may potentially be a noticeable speed improvement,
- * but I can't honestly say I've tested it.
- *
- * Handling interrupts that need to do mb's to synchronize to
- * non-interrupts is another fun race area.  Don't do it (because if
- * you do, I'll have to do *everything* with interrupts disabled,
- * ugh).
- */
-
-/*
- * Memory Controller registers:
- */
-#define LCA_MEM_BCR0		(IDENT_ADDR + 0x120000000UL)
-#define LCA_MEM_BCR1		(IDENT_ADDR + 0x120000008UL)
-#define LCA_MEM_BCR2		(IDENT_ADDR + 0x120000010UL)
-#define LCA_MEM_BCR3		(IDENT_ADDR + 0x120000018UL)
-#define LCA_MEM_BMR0		(IDENT_ADDR + 0x120000020UL)
-#define LCA_MEM_BMR1		(IDENT_ADDR + 0x120000028UL)
-#define LCA_MEM_BMR2		(IDENT_ADDR + 0x120000030UL)
-#define LCA_MEM_BMR3		(IDENT_ADDR + 0x120000038UL)
-#define LCA_MEM_BTR0		(IDENT_ADDR + 0x120000040UL)
-#define LCA_MEM_BTR1		(IDENT_ADDR + 0x120000048UL)
-#define LCA_MEM_BTR2		(IDENT_ADDR + 0x120000050UL)
-#define LCA_MEM_BTR3		(IDENT_ADDR + 0x120000058UL)
-#define LCA_MEM_GTR		(IDENT_ADDR + 0x120000060UL)
-#define LCA_MEM_ESR		(IDENT_ADDR + 0x120000068UL)
-#define LCA_MEM_EAR		(IDENT_ADDR + 0x120000070UL)
-#define LCA_MEM_CAR		(IDENT_ADDR + 0x120000078UL)
-#define LCA_MEM_VGR		(IDENT_ADDR + 0x120000080UL)
-#define LCA_MEM_PLM		(IDENT_ADDR + 0x120000088UL)
-#define LCA_MEM_FOR		(IDENT_ADDR + 0x120000090UL)
-
-/*
- * I/O Controller registers:
- */
-#define LCA_IOC_HAE		(IDENT_ADDR + 0x180000000UL)
-#define LCA_IOC_CONF		(IDENT_ADDR + 0x180000020UL)
-#define LCA_IOC_STAT0		(IDENT_ADDR + 0x180000040UL)
-#define LCA_IOC_STAT1		(IDENT_ADDR + 0x180000060UL)
-#define LCA_IOC_TBIA		(IDENT_ADDR + 0x180000080UL)
-#define LCA_IOC_TB_ENA		(IDENT_ADDR + 0x1800000a0UL)
-#define LCA_IOC_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
-#define LCA_IOC_PAR_DIS		(IDENT_ADDR + 0x1800000e0UL)
-#define LCA_IOC_W_BASE0		(IDENT_ADDR + 0x180000100UL)
-#define LCA_IOC_W_BASE1		(IDENT_ADDR + 0x180000120UL)
-#define LCA_IOC_W_MASK0		(IDENT_ADDR + 0x180000140UL)
-#define LCA_IOC_W_MASK1		(IDENT_ADDR + 0x180000160UL)
-#define LCA_IOC_T_BASE0		(IDENT_ADDR + 0x180000180UL)
-#define LCA_IOC_T_BASE1		(IDENT_ADDR + 0x1800001a0UL)
-#define LCA_IOC_TB_TAG0		(IDENT_ADDR + 0x188000000UL)
-#define LCA_IOC_TB_TAG1		(IDENT_ADDR + 0x188000020UL)
-#define LCA_IOC_TB_TAG2		(IDENT_ADDR + 0x188000040UL)
-#define LCA_IOC_TB_TAG3		(IDENT_ADDR + 0x188000060UL)
-#define LCA_IOC_TB_TAG4		(IDENT_ADDR + 0x188000070UL)
-#define LCA_IOC_TB_TAG5		(IDENT_ADDR + 0x1880000a0UL)
-#define LCA_IOC_TB_TAG6		(IDENT_ADDR + 0x1880000c0UL)
-#define LCA_IOC_TB_TAG7		(IDENT_ADDR + 0x1880000e0UL)
-
-/*
- * Memory spaces:
- */
-#define LCA_IACK_SC		(IDENT_ADDR + 0x1a0000000UL)
-#define LCA_CONF		(IDENT_ADDR + 0x1e0000000UL)
-#define LCA_IO			(IDENT_ADDR + 0x1c0000000UL)
-#define LCA_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
-#define LCA_DENSE_MEM		(IDENT_ADDR + 0x300000000UL)
-
-/*
- * Bit definitions for I/O Controller status register 0:
- */
-#define LCA_IOC_STAT0_CMD		0xf
-#define LCA_IOC_STAT0_ERR		(1<<4)
-#define LCA_IOC_STAT0_LOST		(1<<5)
-#define LCA_IOC_STAT0_THIT		(1<<6)
-#define LCA_IOC_STAT0_TREF		(1<<7)
-#define LCA_IOC_STAT0_CODE_SHIFT	8
-#define LCA_IOC_STAT0_CODE_MASK		0x7
-#define LCA_IOC_STAT0_P_NBR_SHIFT	13
-#define LCA_IOC_STAT0_P_NBR_MASK	0x7ffff
-
-#define LCA_HAE_ADDRESS		LCA_IOC_HAE
-
-/* LCA PMR Power Management register defines */
-#define LCA_PMR_ADDR	(IDENT_ADDR + 0x120000098UL)
-#define LCA_PMR_PDIV    0x7                     /* Primary clock divisor */
-#define LCA_PMR_ODIV    0x38                    /* Override clock divisor */
-#define LCA_PMR_INTO    0x40                    /* Interrupt override */
-#define LCA_PMR_DMAO    0x80                    /* DMA override */
-#define LCA_PMR_OCCEB   0xffff0000L             /* Override cycle counter - even bits */
-#define LCA_PMR_OCCOB   0xffff000000000000L     /* Override cycle counter - even bits */
-#define LCA_PMR_PRIMARY_MASK    0xfffffffffffffff8L
-
-/* LCA PMR Macros */
-
-#define LCA_READ_PMR        (*(volatile unsigned long *)LCA_PMR_ADDR)
-#define LCA_WRITE_PMR(d)    (*((volatile unsigned long *)LCA_PMR_ADDR) = (d))
-
-#define LCA_GET_PRIMARY(r)  ((r) & LCA_PMR_PDIV)
-#define LCA_GET_OVERRIDE(r) (((r) >> 3) & LCA_PMR_PDIV)
-#define LCA_SET_PRIMARY_CLOCK(r, c) ((r) = (((r) & LCA_PMR_PRIMARY_MASK)|(c)))
-
-/* LCA PMR Divisor values */
-#define LCA_PMR_DIV_1   0x0
-#define LCA_PMR_DIV_1_5 0x1
-#define LCA_PMR_DIV_2   0x2
-#define LCA_PMR_DIV_4   0x3
-#define LCA_PMR_DIV_8   0x4
-#define LCA_PMR_DIV_16  0x5
-#define LCA_PMR_DIV_MIN DIV_1
-#define LCA_PMR_DIV_MAX DIV_16
-
-
-/*
- * Data structure for handling LCA machine checks.  Correctable errors
- * result in a short logout frame, uncorrectable ones in a long one.
- */
-struct el_lca_mcheck_short {
-	struct el_common	h;		/* common logout header */
-	unsigned long		esr;		/* error-status register */
-	unsigned long		ear;		/* error-address register */
-	unsigned long		dc_stat;	/* dcache status register */
-	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
-	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
-};
-
-struct el_lca_mcheck_long {
-	struct el_common	h;		/* common logout header */
-	unsigned long		pt[31];		/* PAL temps */
-	unsigned long		exc_addr;	/* exception address */
-	unsigned long		pad1[3];
-	unsigned long		pal_base;	/* PALcode base address */
-	unsigned long		hier;		/* hw interrupt enable */
-	unsigned long		hirr;		/* hw interrupt request */
-	unsigned long		mm_csr;		/* MMU control & status */
-	unsigned long		dc_stat;	/* data cache status */
-	unsigned long		dc_addr;	/* data cache addr register */
-	unsigned long		abox_ctl;	/* address box control register */
-	unsigned long		esr;		/* error status register */
-	unsigned long		ear;		/* error address register */
-	unsigned long		car;		/* cache control register */
-	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
-	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
-	unsigned long		va;		/* virtual address register */
-};
-
-union el_lca {
-	struct el_common *		c;
-	struct el_lca_mcheck_long *	l;
-	struct el_lca_mcheck_short *	s;
-};
-
-#ifdef __KERNEL__
-
-#ifndef __EXTERN_INLINE
-#define __EXTERN_INLINE extern inline
-#define __IO_EXTERN_INLINE
-#endif
-
-/*
- * I/O functions:
- *
- * Unlike Jensen, the Noname machines have no concept of local
- * I/O---everything goes over the PCI bus.
- *
- * There is plenty room for optimization here.  In particular,
- * the Alpha's insb/insw/extb/extw should be useful in moving
- * data to/from the right byte-lanes.
- */
-
-#define vip	volatile int __force *
-#define vuip	volatile unsigned int __force *
-#define vulp	volatile unsigned long __force *
-
-#define LCA_SET_HAE						\
-	do {							\
-		if (addr >= (1UL << 24)) {			\
-			unsigned long msb = addr & 0xf8000000;	\
-			addr -= msb;				\
-			set_hae(msb);				\
-		}						\
-	} while (0)
-
-
-__EXTERN_INLINE u8 lca_ioread8(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long result, base_and_type;
-
-	if (addr >= LCA_DENSE_MEM) {
-		addr -= LCA_DENSE_MEM;
-		LCA_SET_HAE;
-		base_and_type = LCA_SPARSE_MEM + 0x00;
-	} else {
-		addr -= LCA_IO;
-		base_and_type = LCA_IO + 0x00;
-	}
-
-	result = *(vip) ((addr << 5) + base_and_type);
-	return __kernel_extbl(result, addr & 3);
-}
-
-__EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long w, base_and_type;
-
-	if (addr >= LCA_DENSE_MEM) {
-		addr -= LCA_DENSE_MEM;
-		LCA_SET_HAE;
-		base_and_type = LCA_SPARSE_MEM + 0x00;
-	} else {
-		addr -= LCA_IO;
-		base_and_type = LCA_IO + 0x00;
-	}
-
-	w = __kernel_insbl(b, addr & 3);
-	*(vuip) ((addr << 5) + base_and_type) = w;
-}
-
-__EXTERN_INLINE u16 lca_ioread16(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long result, base_and_type;
-
-	if (addr >= LCA_DENSE_MEM) {
-		addr -= LCA_DENSE_MEM;
-		LCA_SET_HAE;
-		base_and_type = LCA_SPARSE_MEM + 0x08;
-	} else {
-		addr -= LCA_IO;
-		base_and_type = LCA_IO + 0x08;
-	}
-
-	result = *(vip) ((addr << 5) + base_and_type);
-	return __kernel_extwl(result, addr & 3);
-}
-
-__EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	unsigned long w, base_and_type;
-
-	if (addr >= LCA_DENSE_MEM) {
-		addr -= LCA_DENSE_MEM;
-		LCA_SET_HAE;
-		base_and_type = LCA_SPARSE_MEM + 0x08;
-	} else {
-		addr -= LCA_IO;
-		base_and_type = LCA_IO + 0x08;
-	}
-
-	w = __kernel_inswl(b, addr & 3);
-	*(vuip) ((addr << 5) + base_and_type) = w;
-}
-
-__EXTERN_INLINE u32 lca_ioread32(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < LCA_DENSE_MEM)
-		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
-	return *(vuip)addr;
-}
-
-__EXTERN_INLINE void lca_iowrite32(u32 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < LCA_DENSE_MEM)
-		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
-	*(vuip)addr = b;
-}
-
-__EXTERN_INLINE u64 lca_ioread64(const void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < LCA_DENSE_MEM)
-		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
-	return *(vulp)addr;
-}
-
-__EXTERN_INLINE void lca_iowrite64(u64 b, void __iomem *xaddr)
-{
-	unsigned long addr = (unsigned long) xaddr;
-	if (addr < LCA_DENSE_MEM)
-		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
-	*(vulp)addr = b;
-}
-
-__EXTERN_INLINE void __iomem *lca_ioportmap(unsigned long addr)
-{
-	return (void __iomem *)(addr + LCA_IO);
-}
-
-__EXTERN_INLINE void __iomem *lca_ioremap(unsigned long addr,
-					  unsigned long size)
-{
-	return (void __iomem *)(addr + LCA_DENSE_MEM);
-}
-
-__EXTERN_INLINE int lca_is_ioaddr(unsigned long addr)
-{
-	return addr >= IDENT_ADDR + 0x120000000UL;
-}
-
-__EXTERN_INLINE int lca_is_mmio(const volatile void __iomem *addr)
-{
-	return (unsigned long)addr >= LCA_DENSE_MEM;
-}
-
-#undef vip
-#undef vuip
-#undef vulp
-
-#undef __IO_PREFIX
-#define __IO_PREFIX		lca
-#define lca_trivial_rw_bw	2
-#define lca_trivial_rw_lq	1
-#define lca_trivial_io_bw	0
-#define lca_trivial_io_lq	0
-#define lca_trivial_iounmap	1
-#include <asm/io_trivial.h>
-
-#ifdef __IO_EXTERN_INLINE
-#undef __EXTERN_INLINE
-#undef __IO_EXTERN_INLINE
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* __ALPHA_LCA__H__ */
diff --git a/arch/alpha/include/asm/dma.h b/arch/alpha/include/asm/dma.h
index a04d76b96089..3a88812b7165 100644
--- a/arch/alpha/include/asm/dma.h
+++ b/arch/alpha/include/asm/dma.h
@@ -82,11 +82,6 @@
   just a wiring limit.
 */
 
-/* The maximum address for ISA DMA transfer on Alpha XL, due to an
-   hardware SIO limitation, is 64MB.
-*/
-#define ALPHA_XL_MAX_ISA_DMA_ADDRESS		0x04000000UL
-
 /* The maximum address for ISA DMA transfer on RUFFIAN,
    due to an hardware SIO limitation, is 16MB.
 */
@@ -107,9 +102,7 @@
 #ifdef CONFIG_ALPHA_GENERIC
 # define MAX_ISA_DMA_ADDRESS		(alpha_mv.max_isa_dma_address)
 #else
-# if defined(CONFIG_ALPHA_XL)
-#  define MAX_ISA_DMA_ADDRESS		ALPHA_XL_MAX_ISA_DMA_ADDRESS
-# elif defined(CONFIG_ALPHA_RUFFIAN)
+# if defined(CONFIG_ALPHA_RUFFIAN)
 #  define MAX_ISA_DMA_ADDRESS		ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS
 # elif defined(CONFIG_ALPHA_SABLE)
 #  define MAX_ISA_DMA_ADDRESS		ALPHA_SABLE_MAX_ISA_DMA_ADDRESS
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 0c54ddb5b33e..2bb8cbeedf91 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -203,14 +203,10 @@ static inline int generic_is_mmio(const volatile void __iomem *a)
 
 #else
 
-#if defined(CONFIG_ALPHA_APECS)
-# include <asm/core_apecs.h>
-#elif defined(CONFIG_ALPHA_CIA)
+#if defined(CONFIG_ALPHA_CIA)
 # include <asm/core_cia.h>
 #elif defined(CONFIG_ALPHA_IRONGATE)
 # include <asm/core_irongate.h>
-#elif defined(CONFIG_ALPHA_LCA)
-# include <asm/core_lca.h>
 #elif defined(CONFIG_ALPHA_MARVEL)
 # include <asm/core_marvel.h>
 #elif defined(CONFIG_ALPHA_MCPCIA)
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
index 442097c56934..e7d22357a5a6 100644
--- a/arch/alpha/include/asm/irq.h
+++ b/arch/alpha/include/asm/irq.h
@@ -31,16 +31,12 @@
 #  define NR_IRQS      (32768 + 16)    /* marvel - 32 pids */
 # endif
 
-#elif defined(CONFIG_ALPHA_CABRIOLET) || \
-      defined(CONFIG_ALPHA_EB66P)     || \
-      defined(CONFIG_ALPHA_EB164)     || \
+#elif defined(CONFIG_ALPHA_EB164)     || \
       defined(CONFIG_ALPHA_PC164)     || \
       defined(CONFIG_ALPHA_LX164)
 # define NR_IRQS	35
 
-#elif defined(CONFIG_ALPHA_EB66)      || \
-      defined(CONFIG_ALPHA_EB64P)     || \
-      defined(CONFIG_ALPHA_MIKASA)
+#elif defined(CONFIG_ALPHA_MIKASA)
 # define NR_IRQS	32
 
 #elif defined(CONFIG_ALPHA_ALCOR)     || \