powerpc: remove 4xx support

There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>

1 files changed, 0 insertions, 188 deletions

diff --git a/arch/powerpc/cpu/ppc4xx/ecc.c b/arch/powerpc/cpu/ppc4xx/ecc.c
deleted file mode 100644
index 88a4605..0000000
--- a/arch/powerpc/cpu/ppc4xx/ecc.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- *    Copyright (c) 2008 Nuovation System Designs, LLC
- *      Grant Erickson <gerickson@nuovations.com>
- *
- *    (C) Copyright 2005-2009
- *    Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- *    (C) Copyright 2002
- *    Jun Gu, Artesyn Technology, jung@artesyncp.com
- *
- *    (C) Copyright 2001
- *    Bill Hunter, Wave 7 Optics, williamhunter@attbi.com
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- *    Description:
- *	This file implements generic DRAM ECC initialization for
- *	PowerPC processors using a SDRAM DDR/DDR2 controller,
- *	including the 405EX(r), 440GP/GX/EP/GR, 440SP(E), and
- *	460EX/GT.
- */
-
-#include <common.h>
-#include <asm/ppc4xx.h>
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/mmu.h>
-#include <asm/cache.h>
-
-#include "ecc.h"
-
-#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) || \
-    defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2)
-#if defined(CONFIG_DDR_ECC) || defined(CONFIG_SDRAM_ECC)
-
-#if defined(CONFIG_405EX)
-/*
- * Currently only 405EX uses 16bit data bus width as an alternative
- * option to 32bit data width (SDRAM0_MCOPT1_WDTH)
- */
-#define SDRAM_DATA_ALT_WIDTH	2
-#else
-#define SDRAM_DATA_ALT_WIDTH	8
-#endif
-
-static void wait_ddr_idle(void)
-{
-	u32 val;
-
-	do {
-		mfsdram(SDRAM_MCSTAT, val);
-	} while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT);
-}
-
-static void program_ecc_addr(unsigned long start_address,
-			     unsigned long num_bytes,
-			     unsigned long tlb_word2_i_value)
-{
-	unsigned long current_address;
-	unsigned long end_address;
-	unsigned long address_increment;
-	unsigned long mcopt1;
-	char str[] = "ECC generation -";
-	char slash[] = "\\|/-\\|/-";
-	int loop = 0;
-	int loopi = 0;
-
-	current_address = start_address;
-	mfsdram(SDRAM_MCOPT1, mcopt1);
-	if ((mcopt1 & SDRAM_MCOPT1_MCHK_MASK) != SDRAM_MCOPT1_MCHK_NON) {
-		mtsdram(SDRAM_MCOPT1,
-			(mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_GEN);
-		sync();
-		eieio();
-		wait_ddr_idle();
-
-		puts(str);
-
-#ifdef CONFIG_440
-		if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) {
-#endif
-			/* ECC bit set method for non-cached memory */
-			if ((mcopt1 & SDRAM_MCOPT1_DMWD_MASK) == SDRAM_MCOPT1_DMWD_32)
-				address_increment = 4;
-			else
-				address_increment = SDRAM_DATA_ALT_WIDTH;
-			end_address = current_address + num_bytes;
-
-			while (current_address < end_address) {
-				*((unsigned long *)current_address) = 0;
-				current_address += address_increment;
-
-				if ((loop++ % (2 << 20)) == 0) {
-					putc('\b');
-					putc(slash[loopi++ % 8]);
-				}
-			}
-#ifdef CONFIG_440
-		} else {
-			/* ECC bit set method for cached memory */
-			dcbz_area(start_address, num_bytes);
-			/* Write modified dcache lines back to memory */
-			clean_dcache_range(start_address, start_address + num_bytes);
-		}
-#endif /* CONFIG_440 */
-
-		blank_string(strlen(str));
-
-		sync();
-		eieio();
-		wait_ddr_idle();
-
-		/* clear ECC error repoting registers */
-		mtsdram(SDRAM_ECCES, 0xffffffff);
-#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)
-		/*
-		 * IBM DDR(1) core (440GX):
-		 * Clear Mx bits in SDRAM0_BESR0/1
-		 */
-		mtsdram(SDRAM0_BESR0, 0xffffffff);
-		mtsdram(SDRAM0_BESR1, 0xffffffff);
-#elif defined(CONFIG_440)
-		/*
-		 * 440/460 DDR2 core:
-		 * Clear EMID (Error PLB Master ID) in MQ0_ESL
-		 */
-		mtdcr(SDRAM_ERRSTATLL, 0xfff00000);
-#else
-		/*
-		 * 405EX(r) DDR2 core:
-		 * Clear M0ID (Error PLB Master ID) in SDRAM_BESR
-		 */
-		mtsdram(SDRAM_BESR, 0xf0000000);
-#endif
-
-		mtsdram(SDRAM_MCOPT1,
-			(mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_CHK_REP);
-		sync();
-		eieio();
-		wait_ddr_idle();
-	}
-}
-
-#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)
-void ecc_init(unsigned long * const start, unsigned long size)
-{
-	/*
-	 * Init ECC with cache disabled (on PPC's with IBM DDR
-	 * controller (non DDR2), not tested with cache enabled yet
-	 */
-	program_ecc_addr((u32)start, size, TLB_WORD2_I_ENABLE);
-}
-#endif
-
-#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2)
-void do_program_ecc(unsigned long tlb_word2_i_value)
-{
-	unsigned long mcopt1;
-	unsigned long mcopt2;
-	unsigned long mcstat;
-	phys_size_t memsize = sdram_memsize();
-
-	if (memsize > CONFIG_MAX_MEM_MAPPED) {
-		printf("\nWarning: Can't enable ECC on systems with more than 2GB of SDRAM!\n");
-		return;
-	}
-
-	mfsdram(SDRAM_MCOPT1, mcopt1);
-	mfsdram(SDRAM_MCOPT2, mcopt2);
-
-	if ((mcopt1 & SDRAM_MCOPT1_MCHK_MASK) != SDRAM_MCOPT1_MCHK_NON) {
-		/* DDR controller must be enabled and not in self-refresh. */
-		mfsdram(SDRAM_MCSTAT, mcstat);
-		if (((mcopt2 & SDRAM_MCOPT2_DCEN_MASK) == SDRAM_MCOPT2_DCEN_ENABLE)
-		    && ((mcopt2 & SDRAM_MCOPT2_SREN_MASK) == SDRAM_MCOPT2_SREN_EXIT)
-		    && ((mcstat & (SDRAM_MCSTAT_MIC_MASK | SDRAM_MCSTAT_SRMS_MASK))
-			== (SDRAM_MCSTAT_MIC_COMP | SDRAM_MCSTAT_SRMS_NOT_SF))) {
-
-			program_ecc_addr(0, memsize, tlb_word2_i_value);
-		}
-	}
-}
-#endif
-
-#endif /* defined(CONFIG_DDR_ECC) || defined(CONFIG_SDRAM_ECC) */
-#endif /* defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)... */