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Diffstat (limited to 'arch/arm/mach-mx25/cpu.c')
| -rw-r--r-- | arch/arm/mach-mx25/cpu.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/mach-mx25/cpu.c b/arch/arm/mach-mx25/cpu.c new file mode 100644 index 000000000000..f64dfbf6cf03 --- /dev/null +++ b/arch/arm/mach-mx25/cpu.c @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file mach-mx25/cpu.c + * + * @brief This file contains the CPU initialization code. + * + * @ingroup MSL_MX25 + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/iram_alloc.h> +#include <mach/hardware.h> + +/*! + * CPU initialization. It is called by fixup_mxc_board() + */ +void __init mxc_cpu_init(void) +{ + if (!system_rev) + mxc_set_system_rev(0x25, CHIP_REV_1_0); +} + +static int __init post_cpu_init(void) +{ + void __iomem *base; + unsigned int reg; + + iram_init(MX25_IRAM_BASE_ADDR, IRAM_SIZE); + + base = IO_ADDRESS(MX25_AIPS1_BASE_ADDR); + __raw_writel(0x0, base + 0x40); + __raw_writel(0x0, base + 0x44); + __raw_writel(0x0, base + 0x48); + __raw_writel(0x0, base + 0x4C); + reg = __raw_readl(base + 0x50) & 0x00FFFFFF; + __raw_writel(reg, base + 0x50); + + base = IO_ADDRESS(MX25_AIPS2_BASE_ADDR); + __raw_writel(0x0, base + 0x40); + __raw_writel(0x0, base + 0x44); + __raw_writel(0x0, base + 0x48); + __raw_writel(0x0, base + 0x4C); + reg = __raw_readl(base + 0x50) & 0x00FFFFFF; + __raw_writel(reg, base + 0x50); + + return 0; +} +postcore_initcall(post_cpu_init); |