From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/plat-mxc/include/mach/hardware.h | 146 ++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100755 arch/arm/plat-mxc/include/mach/hardware.h (limited to 'arch/arm/plat-mxc/include/mach/hardware.h') diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h new file mode 100755 index 00000000..e1c52344 --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/hardware.h @@ -0,0 +1,146 @@ +/* + * Copyright 2004-2012 Freescale Semiconductor, Inc. + * Copyright 2008 Juergen Beisert, kernel@pengutronix.de + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#ifndef __ASM_ARCH_MXC_HARDWARE_H__ +#define __ASM_ARCH_MXC_HARDWARE_H__ + +#include + +#ifdef __ASSEMBLER__ +#define IOMEM(addr) (addr) +#else +#define IOMEM(addr) ((void __force __iomem *)(addr)) +#endif + +#define IMX_IO_P2V_MODULE(addr, module) \ + (((addr) - module ## _BASE_ADDR) < module ## _SIZE ? \ + (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0) + +/* + * This is rather complicated for humans and ugly to verify, but for a machine + * it's OK. Still more as it is usually only applied to constants. The upsides + * on using this approach are: + * + * - same mapping on all i.MX machines + * - works for assembler, too + * - no need to nurture #defines for virtual addresses + * + * The downside it, it's hard to verify (but I have a script for that). + * + * Obviously this needs to be injective for each SoC. In general it maps the + * whole address space to [0xf4000000, 0xf5ffffff]. So [0xf6000000,0xfeffffff] + * is free for per-machine use (e.g. KZM_ARM11_01 uses 64MiB there). + * + * It applies the following mappings for the different SoCs: + * + * mx1: + * IO 0x00200000+0x100000 -> 0xf4000000+0x100000 + * mx21: + * AIPI 0x10000000+0x100000 -> 0xf4400000+0x100000 + * SAHB1 0x80000000+0x100000 -> 0xf4000000+0x100000 + * X_MEMC 0xdf000000+0x004000 -> 0xf5f00000+0x004000 + * mx25: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * mx27: + * AIPI 0x10000000+0x100000 -> 0xf4400000+0x100000 + * SAHB1 0x80000000+0x100000 -> 0xf4000000+0x100000 + * X_MEMC 0xd8000000+0x100000 -> 0xf5c00000+0x100000 + * mx31: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * X_MEMC 0xb8000000+0x010000 -> 0xf4c00000+0x010000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * mx35: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * X_MEMC 0xb8000000+0x010000 -> 0xf4c00000+0x010000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * mx50: + * TZIC 0x0fffc000+0x004000 -> 0xf4bfc000+0x004000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * AIPS1 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AIPS2 0x63f00000+0x100000 -> 0xf5300000+0x100000 + * mx51: + * IRAM 0x1ffe0000+0x020000 -> 0xf4fe0000+0x020000 + * DEBUG 0x60000000+0x100000 -> 0xf5000000+0x100000 + * SPBA0 0x70000000+0x100000 -> 0xf5400000+0x100000 + * AIPS1 0x73f00000+0x100000 -> 0xf5700000+0x100000 + * AIPS2 0x83f00000+0x100000 -> 0xf4300000+0x100000 + */ +#define IMX_IO_P2V(x) ( \ + 0xf2000000 + \ + (((x) & 0x50000000) >> 6) + \ + (((x) & 0x0b000000) >> 4) + \ + (((x) & 0x000fffff))) + +#define IMX_IO_ADDRESS(x) IOMEM(IMX_IO_P2V(x)) + +#include + +#ifdef CONFIG_ARCH_MX5 +#include +#include +#include +#endif + +#ifdef CONFIG_ARCH_MX6 +#include +#endif + +#ifdef CONFIG_ARCH_MX3 +#include +#include +#include +#endif + +#ifdef CONFIG_ARCH_MX2 +# include +# ifdef CONFIG_MACH_MX21 +# include +# endif +# ifdef CONFIG_MACH_MX27 +# include +# endif +#endif + +#ifdef CONFIG_ARCH_MX1 +# include +#endif + +#ifdef CONFIG_ARCH_MX25 +# include +#endif + +#define imx_map_entry(soc, name, _type) { \ + .virtual = soc ## _IO_P2V(soc ## _ ## name ## _BASE_ADDR), \ + .pfn = __phys_to_pfn(soc ## _ ## name ## _BASE_ADDR), \ + .length = soc ## _ ## name ## _SIZE, \ + .type = _type, \ +} + +/* macro to get at IO space when running virtually */ +#define PCIBIOS_MIN_IO 0x00000000 +#define PCIBIOS_MIN_MEM 0x00000000 +#define pcibios_assign_all_busses() 0 + +#endif /* __ASM_ARCH_MXC_HARDWARE_H__ */ -- cgit v1.2.3