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Diffstat (limited to 'arch/arm/mach-imx/hardware.h')
| -rw-r--r-- | arch/arm/mach-imx/hardware.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/hardware.h b/arch/arm/mach-imx/hardware.h new file mode 100644 index 000000000..7acf7ce46 --- /dev/null +++ b/arch/arm/mach-imx/hardware.h @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2004-2007, 2014 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2008 Juergen Beisert, kernel@pengutronix.de + */ + +#ifndef __ASM_ARCH_MXC_HARDWARE_H__ +#define __ASM_ARCH_MXC_HARDWARE_H__ + +#ifndef __ASSEMBLY__ +#include <asm/io.h> +#include <soc/imx/revision.h> +#endif +#include <linux/sizes.h> + +#define addr_in_module(addr, mod) \ + ((unsigned long)(addr) - mod ## _BASE_ADDR < mod ## _SIZE) + +#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 -> 0xf5000000+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 -> 0xf5000000+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 -> 0xf5c00000+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 -> 0xf5c00000+0x010000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * mx51: + * TZIC 0x0fffc000+0x004000 -> 0xf4bfc000+0x004000 + * IRAM 0x1ffe0000+0x020000 -> 0xf4fe0000+0x020000 + * DEBUG 0x60000000+0x100000 -> 0xf5000000+0x100000 + * SPBA0 0x70000000+0x100000 -> 0xf5400000+0x100000 + * AIPS1 0x73f00000+0x100000 -> 0xf5700000+0x100000 + * AIPS2 0x83f00000+0x100000 -> 0xf5300000+0x100000 + * mx53: + * TZIC 0x0fffc000+0x004000 -> 0xf4bfc000+0x004000 + * DEBUG 0x40000000+0x100000 -> 0xf5000000+0x100000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * AIPS1 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AIPS2 0x63f00000+0x100000 -> 0xf5300000+0x100000 + * mx6q: + * SCU 0x00a00000+0x004000 -> 0xf4000000+0x004000 + * CCM 0x020c4000+0x004000 -> 0xf42c4000+0x004000 + * ANATOP 0x020c8000+0x004000 -> 0xf42c8000+0x004000 + * UART4 0x021f0000+0x004000 -> 0xf42f0000+0x004000 + */ +#define IMX_IO_P2V(x) ( \ + (((x) & 0x80000000) >> 7) | \ + (0xf4000000 + \ + (((x) & 0x50000000) >> 6) + \ + (((x) & 0x0b000000) >> 4) + \ + (((x) & 0x000fffff)))) + +#define IMX_IO_ADDRESS(x) IOMEM(IMX_IO_P2V(x)) + +#include "mxc.h" + +#include "mx3x.h" +#include "mx31.h" +#include "mx35.h" +#include "mx2x.h" +#include "mx27.h" + +#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, \ +} + +/* There's an off-by-one between the gpio bank number and the gpiochip */ +/* range e.g. GPIO_1_5 is gpio 5 under linux */ +#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr)) + +#endif /* __ASM_ARCH_MXC_HARDWARE_H__ */ |