5ae30b477e
This saves us from soc level dispatching in generic files Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/*
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* Copyright (C) 1999,2000 Arm Limited
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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* - add MX31 specific definitions
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <asm/pgtable.h>
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#include <asm/mach/map.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/iomux-v3.h>
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#include <mach/gpio.h>
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#include <mach/irqs.h>
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#ifdef CONFIG_SOC_IMX31
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static struct map_desc mx31_io_desc[] __initdata = {
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imx_map_entry(MX31, X_MEMC, MT_DEVICE),
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imx_map_entry(MX31, AVIC, MT_DEVICE_NONSHARED),
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imx_map_entry(MX31, AIPS1, MT_DEVICE_NONSHARED),
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imx_map_entry(MX31, AIPS2, MT_DEVICE_NONSHARED),
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imx_map_entry(MX31, SPBA0, MT_DEVICE_NONSHARED),
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};
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/*
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* This function initializes the memory map. It is called during the
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* system startup to create static physical to virtual memory mappings
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* for the IO modules.
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*/
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void __init mx31_map_io(void)
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{
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iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc));
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}
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void __init imx31_init_early(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX31);
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mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
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}
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static struct mxc_gpio_port imx31_gpio_ports[] = {
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DEFINE_IMX_GPIO_PORT_IRQ(MX31, 0, 1, MX31_INT_GPIO1),
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DEFINE_IMX_GPIO_PORT_IRQ(MX31, 1, 2, MX31_INT_GPIO2),
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DEFINE_IMX_GPIO_PORT_IRQ(MX31, 2, 3, MX31_INT_GPIO3),
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};
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void __init mx31_init_irq(void)
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{
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mxc_init_irq(MX31_IO_ADDRESS(MX31_AVIC_BASE_ADDR));
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mxc_gpio_init(imx31_gpio_ports, ARRAY_SIZE(imx31_gpio_ports));
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}
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#endif /* ifdef CONFIG_SOC_IMX31 */
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#ifdef CONFIG_SOC_IMX35
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static struct map_desc mx35_io_desc[] __initdata = {
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imx_map_entry(MX35, X_MEMC, MT_DEVICE),
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imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED),
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imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED),
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imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED),
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imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED),
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};
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void __init mx35_map_io(void)
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{
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iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
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}
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void __init imx35_init_early(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX35);
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mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
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mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
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}
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static struct mxc_gpio_port imx35_gpio_ports[] = {
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DEFINE_IMX_GPIO_PORT_IRQ(MX35, 0, 1, MX35_INT_GPIO1),
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DEFINE_IMX_GPIO_PORT_IRQ(MX35, 1, 2, MX35_INT_GPIO2),
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DEFINE_IMX_GPIO_PORT_IRQ(MX35, 2, 3, MX35_INT_GPIO3),
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};
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void __init mx35_init_irq(void)
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{
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mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR));
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mxc_gpio_init(imx35_gpio_ports, ARRAY_SIZE(imx35_gpio_ports));
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}
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#endif /* ifdef CONFIG_SOC_IMX35 */
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#ifdef CONFIG_CACHE_L2X0
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static int mxc_init_l2x0(void)
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{
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void __iomem *l2x0_base;
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void __iomem *clkctl_base;
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/*
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* First of all, we must repair broken chip settings. There are some
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* i.MX35 CPUs in the wild, comming with bogus L2 cache settings. These
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* misconfigured CPUs will run amok immediately when the L2 cache gets enabled.
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* Workaraound is to setup the correct register setting prior enabling the
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* L2 cache. This should not hurt already working CPUs, as they are using the
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* same value
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*/
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#define L2_MEM_VAL 0x10
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clkctl_base = ioremap(MX35_CLKCTL_BASE_ADDR, 4096);
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if (clkctl_base != NULL) {
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writel(0x00000515, clkctl_base + L2_MEM_VAL);
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iounmap(clkctl_base);
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} else {
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pr_err("L2 cache: Cannot fix timing. Trying to continue without\n");
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}
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l2x0_base = ioremap(MX3x_L2CC_BASE_ADDR, 4096);
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if (IS_ERR(l2x0_base)) {
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printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
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PTR_ERR(l2x0_base));
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return 0;
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}
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l2x0_init(l2x0_base, 0x00030024, 0x00000000);
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return 0;
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}
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arch_initcall(mxc_init_l2x0);
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#endif
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