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Diffstat (limited to 'arch/arm/mach-mx3/mm.c')
| -rw-r--r-- | arch/arm/mach-mx3/mm.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/arm/mach-mx3/mm.c b/arch/arm/mach-mx3/mm.c deleted file mode 100644 index b4ffc531a82..00000000000 --- a/arch/arm/mach-mx3/mm.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright (C) 1999,2000 Arm Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. - * - add MX31 specific definitions - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/err.h> - -#include <asm/pgtable.h> -#include <asm/mach/map.h> -#include <asm/hardware/cache-l2x0.h> - -#include <mach/common.h> -#include <mach/hardware.h> -#include <mach/iomux-v3.h> - -/*! - * @file mm.c - * - * @brief This file creates static virtual to physical mappings, common to all MX3 boards. - * - * @ingroup Memory - */ - -/*! - * This table defines static virtual address mappings for I/O regions. - * These are the mappings common across all MX3 boards. - */ -static struct map_desc mxc_io_desc[] __initdata = { - { - .virtual = X_MEMC_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR), - .length = X_MEMC_SIZE, - .type = MT_DEVICE - }, { - .virtual = AVIC_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(AVIC_BASE_ADDR), - .length = AVIC_SIZE, - .type = MT_DEVICE_NONSHARED - }, { - .virtual = AIPS1_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(AIPS1_BASE_ADDR), - .length = AIPS1_SIZE, - .type = MT_DEVICE_NONSHARED - }, { - .virtual = AIPS2_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(AIPS2_BASE_ADDR), - .length = AIPS2_SIZE, - .type = MT_DEVICE_NONSHARED - }, { - .virtual = SPBA0_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(SPBA0_BASE_ADDR), - .length = SPBA0_SIZE, - .type = MT_DEVICE_NONSHARED - }, -}; - -/*! - * This function initializes the memory map. It is called during the - * system startup to create static physical to virtual memory mappings - * for the IO modules. - */ -void __init mx31_map_io(void) -{ - mxc_set_cpu_type(MXC_CPU_MX31); - mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); - - iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); -} - -#ifdef CONFIG_ARCH_MX35 -void __init mx35_map_io(void) -{ - mxc_set_cpu_type(MXC_CPU_MX35); - mxc_iomux_v3_init(IO_ADDRESS(IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); - - iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); -} -#endif - -int imx3x_register_gpios(void); - -void __init mx31_init_irq(void) -{ - mxc_init_irq(IO_ADDRESS(AVIC_BASE_ADDR)); - imx3x_register_gpios(); -} - -void __init mx35_init_irq(void) -{ - mx31_init_irq(); -} - -#ifdef CONFIG_CACHE_L2X0 -static int mxc_init_l2x0(void) -{ - void __iomem *l2x0_base; - void __iomem *clkctl_base; -/* - * First of all, we must repair broken chip settings. There are some - * i.MX35 CPUs in the wild, comming with bogus L2 cache settings. These - * misconfigured CPUs will run amok immediately when the L2 cache gets enabled. - * Workaraound is to setup the correct register setting prior enabling the - * L2 cache. This should not hurt already working CPUs, as they are using the - * same value - */ -#define L2_MEM_VAL 0x10 - - clkctl_base = ioremap(MX35_CLKCTL_BASE_ADDR, 4096); - if (clkctl_base != NULL) { - writel(0x00000515, clkctl_base + L2_MEM_VAL); - iounmap(clkctl_base); - } else { - pr_err("L2 cache: Cannot fix timing. Trying to continue without\n"); - } - - l2x0_base = ioremap(L2CC_BASE_ADDR, 4096); - if (IS_ERR(l2x0_base)) { - printk(KERN_ERR "remapping L2 cache area failed with %ld\n", - PTR_ERR(l2x0_base)); - return 0; - } - - l2x0_init(l2x0_base, 0x00030024, 0x00000000); - - return 0; -} - -arch_initcall(mxc_init_l2x0); -#endif - |