arch: remove blackfin port

The Analog Devices Blackfin port was added in 2007 and was rather
active for a while, but all work on it has come to a standstill
over time, as Analog have changed their product line-up.

Aaron Wu confirmed that the architecture port is no longer relevant,
and multiple people suggested removing blackfin independently because
of some of its oddities like a non-working SMP port, and the amount of
duplication between the chip variants, which cause extra work when
doing cross-architecture changes.

Link: https://docs.blackfin.uclinux.org/
Acked-by: Aaron Wu <Aaron.Wu@analog.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 102 deletions

diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
deleted file mode 100644
index c15fd05f0b09..000000000000
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Blackfin CPLB initialization
- *
- * Copyright 2008-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-
-#include <asm/blackfin.h>
-#include <asm/cplb.h>
-#include <asm/cplbinit.h>
-#include <asm/mem_map.h>
-
-struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
-struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
-
-int first_switched_icplb, first_switched_dcplb;
-int first_mask_dcplb;
-
-void __init generate_cplb_tables_cpu(unsigned int cpu)
-{
-	int i_d, i_i;
-	unsigned long addr;
-	unsigned long d_data, i_data;
-	unsigned long d_cache = 0, i_cache = 0;
-
-	printk(KERN_INFO "MPU: setting up cplb tables with memory protection\n");
-
-#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE
-	i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
-#endif
-
-#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
-	d_cache = CPLB_L1_CHBL;
-#ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH
-	d_cache |= CPLB_L1_AOW | CPLB_WT;
-#endif
-#endif
-
-	i_d = i_i = 0;
-
-	/* Set up the zero page.  */
-	dcplb_tbl[cpu][i_d].addr = 0;
-	dcplb_tbl[cpu][i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
-
-	icplb_tbl[cpu][i_i].addr = 0;
-	icplb_tbl[cpu][i_i++].data = CPLB_VALID | i_cache | CPLB_USER_RD | PAGE_SIZE_1KB;
-
-	/* Cover kernel memory with 4M pages.  */
-	addr = 0;
-	d_data = d_cache | CPLB_SUPV_WR | CPLB_VALID | PAGE_SIZE_4MB | CPLB_DIRTY;
-	i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB;
-
-	for (; addr < memory_start; addr += 4 * 1024 * 1024) {
-		dcplb_tbl[cpu][i_d].addr = addr;
-		dcplb_tbl[cpu][i_d++].data = d_data;
-		icplb_tbl[cpu][i_i].addr = addr;
-		icplb_tbl[cpu][i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
-	}
-
-#ifdef CONFIG_ROMKERNEL
-	/* Cover kernel XIP flash area */
-	addr = CONFIG_ROM_BASE & ~(4 * 1024 * 1024 - 1);
-	dcplb_tbl[cpu][i_d].addr = addr;
-	dcplb_tbl[cpu][i_d++].data = d_data | CPLB_USER_RD;
-	icplb_tbl[cpu][i_i].addr = addr;
-	icplb_tbl[cpu][i_i++].data = i_data | CPLB_USER_RD;
-#endif
-
-	/* Cover L1 memory.  One 4M area for code and data each is enough.  */
-#if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0
-	dcplb_tbl[cpu][i_d].addr = get_l1_data_a_start_cpu(cpu);
-	dcplb_tbl[cpu][i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
-#endif
-#if L1_CODE_LENGTH > 0
-	icplb_tbl[cpu][i_i].addr = get_l1_code_start_cpu(cpu);
-	icplb_tbl[cpu][i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
-#endif
-
-	/* Cover L2 memory */
-#if L2_LENGTH > 0
-	dcplb_tbl[cpu][i_d].addr = L2_START;
-	dcplb_tbl[cpu][i_d++].data = L2_DMEMORY;
-	icplb_tbl[cpu][i_i].addr = L2_START;
-	icplb_tbl[cpu][i_i++].data = L2_IMEMORY;
-#endif
-
-	first_mask_dcplb = i_d;
-	first_switched_dcplb = i_d + (1 << page_mask_order);
-	first_switched_icplb = i_i;
-
-	while (i_d < MAX_CPLBS)
-		dcplb_tbl[cpu][i_d++].data = 0;
-	while (i_i < MAX_CPLBS)
-		icplb_tbl[cpu][i_i++].data = 0;
-}
-
-void __init generate_cplb_tables_all(void)
-{
-}