X-Git-Url: https://git.archive.openwrt.org/?p=openwrt.git;a=blobdiff_plain;f=target%2Flinux%2Fadm5120%2Ffiles%2Farch%2Fmips%2Fadm5120%2Fcommon%2Fmemory.c;fp=target%2Flinux%2Fadm5120%2Ffiles%2Farch%2Fmips%2Fadm5120%2Fcommon%2Fmemory.c;h=0000000000000000000000000000000000000000;hp=d07266fa38e95ac0407c5e303018ba2a7e5c0d7d;hb=91c72f4bbfe6a27eb82fdcb5370e0a6c98cc787e;hpb=8726cda0057937116b11c730f300dfe61e4fe9a1

diff --git a/target/linux/adm5120/files/arch/mips/adm5120/common/memory.c b/target/linux/adm5120/files/arch/mips/adm5120/common/memory.c
deleted file mode 100644
index d07266fa38..0000000000
--- a/target/linux/adm5120/files/arch/mips/adm5120/common/memory.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- *
- */
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-
-#include <asm/bootinfo.h>
-#include <asm/addrspace.h>
-
-#include <asm/mach-adm5120/adm5120_info.h>
-#include <asm/mach-adm5120/adm5120_defs.h>
-#include <asm/mach-adm5120/adm5120_switch.h>
-#include <asm/mach-adm5120/adm5120_mpmc.h>
-
-#ifdef DEBUG
-#  define mem_dbg(f, a...)	printk(KERN_INFO "mem_detect: " f, ## a)
-#else
-#  define mem_dbg(f, a...)
-#endif
-
-unsigned long adm5120_memsize;
-
-#define MEM_READL(a)		__raw_readl((void __iomem *)(a))
-#define MEM_WRITEL(a, v)	__raw_writel((v), (void __iomem *)(a))
-
-static int __init mem_check_pattern(u8 *addr, unsigned long offs)
-{
-	u32 *p1 = (u32 *)addr;
-	u32 *p2 = (u32 *)(addr+offs);
-	u32 t, u, v;
-
-	/* save original value */
-	t = MEM_READL(p1);
-
-	u = MEM_READL(p2);
-	if (t != u)
-		return 0;
-
-	v = 0x55555555;
-	if (u == v)
-		v = 0xAAAAAAAA;
-
-	mem_dbg("write 0x%08X to 0x%08lX\n", v, (unsigned long)p1);
-
-	MEM_WRITEL(p1, v);
-	adm5120_ndelay(1000);
-	u = MEM_READL(p2);
-
-	mem_dbg("pattern at 0x%08lX is 0x%08X\n", (unsigned long)p2, u);
-
-	/* restore original value */
-	MEM_WRITEL(p1, t);
-
-	return (v == u);
-}
-
-static void __init adm5120_detect_memsize(void)
-{
-	u32	memctrl;
-	u32	size, maxsize;
-	u8	*p;
-
-	memctrl = SW_READ_REG(SWITCH_REG_MEMCTRL);
-	switch (memctrl & MEMCTRL_SDRS_MASK) {
-	case MEMCTRL_SDRS_4M:
-		maxsize = 4 << 20;
-		break;
-	case MEMCTRL_SDRS_8M:
-		maxsize = 8 << 20;
-		break;
-	case MEMCTRL_SDRS_16M:
-		maxsize = 16 << 20;
-		break;
-	default:
-		maxsize = 64 << 20;
-		break;
-	}
-
-	mem_dbg("checking for %uMB chip in 1st bank\n", maxsize >> 20);
-
-	/* detect size of the 1st SDRAM bank */
-	p = (u8 *)KSEG1ADDR(0);
-	for (size = 2<<20; size <= (maxsize >> 1); size <<= 1) {
-		if (mem_check_pattern(p, size)) {
-			/* mirrored address */
-			mem_dbg("mirrored data found at offset 0x%08X\n", size);
-			break;
-		}
-	}
-
-	mem_dbg("chip size in 1st bank is %uMB\n", size >> 20);
-	adm5120_memsize = size;
-
-	if (size != maxsize)
-		/* 2nd bank is not supported */
-		goto out;
-
-	if ((memctrl & MEMCTRL_SDR1_ENABLE) == 0)
-		/* 2nd bank is disabled */
-		goto out;
-
-	/*
-	 * some bootloaders enable 2nd bank, even if the 2nd SDRAM chip
-	 * are missing.
-	 */
-	mem_dbg("check presence of 2nd bank\n");
-
-	p = (u8 *)KSEG1ADDR(maxsize+size-4);
-	if (mem_check_pattern(p, 0))
-		adm5120_memsize += size;
-
-	if (maxsize != size) {
-		/* adjusting MECTRL register */
-		memctrl &= ~(MEMCTRL_SDRS_MASK);
-		switch (size>>20) {
-		case 4:
-			memctrl |= MEMCTRL_SDRS_4M;
-			break;
-		case 8:
-			memctrl |= MEMCTRL_SDRS_8M;
-			break;
-		case 16:
-			memctrl |= MEMCTRL_SDRS_16M;
-			break;
-		default:
-			memctrl |= MEMCTRL_SDRS_64M;
-			break;
-		}
-		SW_WRITE_REG(SWITCH_REG_MEMCTRL, memctrl);
-	}
-
-out:
-	mem_dbg("%dx%uMB memory found\n", (adm5120_memsize == size) ? 1 : 2 ,
-		size>>20);
-}
-
-void __init adm5120_mem_init(void)
-{
-	adm5120_detect_memsize();
-	add_memory_region(0, adm5120_memsize, BOOT_MEM_RAM);
-}