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linux/arch/arm/mach-iop32x/iop3xx.h

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 11:11:33 +03:00
/* SPDX-License-Identifier: GPL-2.0-only */
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
/*
* Intel IOP32X and IOP33X register definitions
*
* Author: Rory Bolt <rorybolt@pacbell.net>
* Copyright (C) 2002 Rory Bolt
* Copyright (C) 2004 Intel Corp.
*/
#ifndef __IOP3XX_H
#define __IOP3XX_H
ARM: iop32x: merge everything into mach-iop32x/ Various bits of iop32x are now in their traditional locations in plat-iop, mach-iop/include/mach/ and in include/asm/mach/hardware. As nothing outside of the iop32x mach code references these any more, this can all be moved into one place now. The only remaining things in the include/mach/ directory are now the NR_IRQS definition, the entry-macros.S file and the the decompressor uart access. After the irqchip code has been converted to SPARSE_IRQ and GENERIC_IRQ_MULTI_HANDLER, it can be moved to ARCH_MULTIPLATFORM. Link: https://lore.kernel.org/r/20190809163334.489360-7-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-09 19:33:21 +03:00
/*
* Peripherals that are shared between the iop32x and iop33x but
* located at different addresses.
*/
#define IOP3XX_TIMER_REG(reg) (IOP3XX_PERIPHERAL_VIRT_BASE + 0x07e0 + (reg))
#include "iop3xx.h"
/* ATU Parameters
* set up a 1:1 bus to physical ram relationship
* w/ physical ram on top of pci in the memory map
*/
#define IOP32X_MAX_RAM_SIZE 0x40000000UL
#define IOP3XX_MAX_RAM_SIZE IOP32X_MAX_RAM_SIZE
#define IOP3XX_PCI_LOWER_MEM_BA 0x80000000
[ARM] 3827/1: iop3xx: add common gpio module Implement the gpio_line_{config,get,set} API for iop3xx. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:23:07 +04:00
/*
* IOP3XX GPIO handling
*/
#define IOP3XX_GPIO_LINE(x) (x)
#ifndef __ASSEMBLY__
[ARM] 4348/4: iop3xx: Give Linux control over PCI initialization Currently the iop3xx platform support code assumes that RedBoot is the bootloader and has already initialized the ATU. Linux should handle this initialization for three reasons: 1/ The memory map that RedBoot sets up is not optimal (page_to_dma and virt_to_phys return different addresses). The effect of this is that using the dma mapping API for the internal bus dma units generates pci bus addresses that are incorrect for the internal bus. 2/ Not all iop platforms use RedBoot 3/ If the ATU is already initialized it indicates that the iop is an add-in card in another host, it does not own the PCI bus, and should not be re-initialized. Changelog: * rather than change nr_controllers to zero, simply do not call pci_common_init Cc: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-02 20:59:44 +04:00
extern int init_atu;
iop: unconditionally initialize the ATU on platforms known to be 'hosts' Platforms like iq80321 and iq80331 which may be host-bus-adapters require 'iop3xx_init_atu=y' to be specified on the kernel command line. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-03-27 05:12:38 +03:00
extern int iop3xx_get_init_atu(void);
[ARM] 3827/1: iop3xx: add common gpio module Implement the gpio_line_{config,get,set} API for iop3xx. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:23:07 +04:00
#endif
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
/*
* IOP3XX processor registers
*/
#define IOP3XX_PERIPHERAL_PHYS_BASE 0xffffe000
ARM: 7692/1: iop3xx: move IOP3XX_PERIPHERAL_VIRT_BASE Currently IOP3XX_PERIPHERAL_VIRT_BASE conflicts with PCI_IO_VIRT_BASE: address size PCI_IO_VIRT_BASE 0xfee00000 0x200000 IOP3XX_PERIPHERAL_VIRT_BASE 0xfeffe000 0x2000 Fix by moving IOP3XX_PERIPHERAL_VIRT_BASE below PCI_IO_VIRT_BASE. The patch fixes the following kernel panic with 3.9-rc1 on iop3xx boards: [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.9.0-rc1-iop32x (aaro@blackmetal) (gcc version 4.7.2 (GCC) ) #20 PREEMPT Tue Mar 5 16:44:36 EET 2013 [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] ------------[ cut here ]------------ [ 0.000000] kernel BUG at mm/vmalloc.c:1145! [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Not tainted (3.9.0-rc1-iop32x #20) [ 0.000000] PC is at vm_area_add_early+0x4c/0x88 [ 0.000000] LR is at add_static_vm_early+0x14/0x68 [ 0.000000] pc : [<c03e74a8>] lr : [<c03e1c40>] psr: 800000d3 [ 0.000000] sp : c03ffee4 ip : dfffdf88 fp : c03ffef4 [ 0.000000] r10: 00000002 r9 : 000000cf r8 : 00000653 [ 0.000000] r7 : c040eca8 r6 : c03e2408 r5 : dfffdf60 r4 : 00200000 [ 0.000000] r3 : dfffdfd8 r2 : feffe000 r1 : ff000000 r0 : dfffdf60 [ 0.000000] Flags: Nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel [ 0.000000] Control: 0000397f Table: a0004000 DAC: 00000017 [ 0.000000] Process swapper (pid: 0, stack limit = 0xc03fe1b8) [ 0.000000] Stack: (0xc03ffee4 to 0xc0400000) [ 0.000000] fee0: 00200000 c03fff0c c03ffef8 c03e1c40 c03e7468 00200000 fee00000 [ 0.000000] ff00: c03fff2c c03fff10 c03e23e4 c03e1c38 feffe000 c0408ee4 ff000000 c0408f04 [ 0.000000] ff20: c03fff3c c03fff30 c03e2434 c03e23b4 c03fff84 c03fff40 c03e2c94 c03e2414 [ 0.000000] ff40: c03f8878 c03f6410 ffff0000 000bffff 00001000 00000008 c03fff84 c03f6410 [ 0.000000] ff60: c04227e8 c03fffd4 a0008000 c03f8878 69052e30 c02f96eb c03fffbc c03fff88 [ 0.000000] ff80: c03e044c c03e268c 00000000 0000397f c0385130 00000001 ffffffff c03f8874 [ 0.000000] ffa0: dfffffff a0004000 69052e30 a03f61a0 c03ffff4 c03fffc0 c03dd5cc c03e0184 [ 0.000000] ffc0: 00000000 00000000 00000000 00000000 00000000 c03f8878 0000397d c040601c [ 0.000000] ffe0: c03f8874 c0408674 00000000 c03ffff8 a0008040 c03dd558 00000000 00000000 [ 0.000000] Backtrace: [ 0.000000] [<c03e745c>] (vm_area_add_early+0x0/0x88) from [<c03e1c40>] (add_static_vm_early+0x14/0x68) Tested-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-04 01:28:41 +04:00
#define IOP3XX_PERIPHERAL_VIRT_BASE 0xfedfe000
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
#define IOP3XX_PERIPHERAL_SIZE 0x00002000
[ARM] 4182/1: iop3xx: fix the ioremap implementation to not remap static ranges Implement a custom ioremap implementation for iop3xx. This saves establishing new mappings. It also cleans up the PCI IO resource to be a physical address rather than a virtual address as Russell pointed out on the original iop13xx port. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:11:04 +03:00
#define IOP3XX_PERIPHERAL_UPPER_PA (IOP3XX_PERIPHERAL_PHYS_BASE +\
IOP3XX_PERIPHERAL_SIZE - 1)
#define IOP3XX_PERIPHERAL_UPPER_VA (IOP3XX_PERIPHERAL_VIRT_BASE +\
IOP3XX_PERIPHERAL_SIZE - 1)
[ARM] iop: add missing parens in macro Fix: drivers/serial/8250.c:1837: warning: suggest parentheses around arithmetic in operand of | due to a macro argument being used without required parenthesis. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05 14:59:13 +04:00
#define IOP3XX_PMMR_PHYS_TO_VIRT(addr) (u32) ((u32) (addr) -\
[ARM] 4182/1: iop3xx: fix the ioremap implementation to not remap static ranges Implement a custom ioremap implementation for iop3xx. This saves establishing new mappings. It also cleans up the PCI IO resource to be a physical address rather than a virtual address as Russell pointed out on the original iop13xx port. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:11:04 +03:00
(IOP3XX_PERIPHERAL_PHYS_BASE\
- IOP3XX_PERIPHERAL_VIRT_BASE))
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
#define IOP3XX_REG_ADDR(reg) (IOP3XX_PERIPHERAL_VIRT_BASE + (reg))
[ARM] 3820/1: iop3xx: factor out shared pci code Merge the iop32x PCI code and iop33x PCI code into plat-iop/pci.c. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:16:23 +04:00
/* Address Translation Unit */
#define IOP3XX_ATUVID (volatile u16 *)IOP3XX_REG_ADDR(0x0100)
#define IOP3XX_ATUDID (volatile u16 *)IOP3XX_REG_ADDR(0x0102)
#define IOP3XX_ATUCMD (volatile u16 *)IOP3XX_REG_ADDR(0x0104)
#define IOP3XX_ATUSR (volatile u16 *)IOP3XX_REG_ADDR(0x0106)
#define IOP3XX_ATURID (volatile u8 *)IOP3XX_REG_ADDR(0x0108)
#define IOP3XX_ATUCCR (volatile u32 *)IOP3XX_REG_ADDR(0x0109)
#define IOP3XX_ATUCLSR (volatile u8 *)IOP3XX_REG_ADDR(0x010c)
#define IOP3XX_ATULT (volatile u8 *)IOP3XX_REG_ADDR(0x010d)
#define IOP3XX_ATUHTR (volatile u8 *)IOP3XX_REG_ADDR(0x010e)
#define IOP3XX_ATUBIST (volatile u8 *)IOP3XX_REG_ADDR(0x010f)
#define IOP3XX_IABAR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0110)
#define IOP3XX_IAUBAR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0114)
#define IOP3XX_IABAR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0118)
#define IOP3XX_IAUBAR1 (volatile u32 *)IOP3XX_REG_ADDR(0x011c)
#define IOP3XX_IABAR2 (volatile u32 *)IOP3XX_REG_ADDR(0x0120)
#define IOP3XX_IAUBAR2 (volatile u32 *)IOP3XX_REG_ADDR(0x0124)
#define IOP3XX_ASVIR (volatile u16 *)IOP3XX_REG_ADDR(0x012c)
#define IOP3XX_ASIR (volatile u16 *)IOP3XX_REG_ADDR(0x012e)
#define IOP3XX_ERBAR (volatile u32 *)IOP3XX_REG_ADDR(0x0130)
#define IOP3XX_ATUILR (volatile u8 *)IOP3XX_REG_ADDR(0x013c)
#define IOP3XX_ATUIPR (volatile u8 *)IOP3XX_REG_ADDR(0x013d)
#define IOP3XX_ATUMGNT (volatile u8 *)IOP3XX_REG_ADDR(0x013e)
#define IOP3XX_ATUMLAT (volatile u8 *)IOP3XX_REG_ADDR(0x013f)
#define IOP3XX_IALR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0140)
#define IOP3XX_IATVR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0144)
#define IOP3XX_ERLR (volatile u32 *)IOP3XX_REG_ADDR(0x0148)
#define IOP3XX_ERTVR (volatile u32 *)IOP3XX_REG_ADDR(0x014c)
#define IOP3XX_IALR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0150)
#define IOP3XX_IALR2 (volatile u32 *)IOP3XX_REG_ADDR(0x0154)
#define IOP3XX_IATVR2 (volatile u32 *)IOP3XX_REG_ADDR(0x0158)
#define IOP3XX_OIOWTVR (volatile u32 *)IOP3XX_REG_ADDR(0x015c)
#define IOP3XX_OMWTVR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0160)
#define IOP3XX_OUMWTVR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0164)
#define IOP3XX_OMWTVR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0168)
#define IOP3XX_OUMWTVR1 (volatile u32 *)IOP3XX_REG_ADDR(0x016c)
#define IOP3XX_OUDWTVR (volatile u32 *)IOP3XX_REG_ADDR(0x0178)
#define IOP3XX_ATUCR (volatile u32 *)IOP3XX_REG_ADDR(0x0180)
#define IOP3XX_PCSR (volatile u32 *)IOP3XX_REG_ADDR(0x0184)
#define IOP3XX_ATUISR (volatile u32 *)IOP3XX_REG_ADDR(0x0188)
#define IOP3XX_ATUIMR (volatile u32 *)IOP3XX_REG_ADDR(0x018c)
#define IOP3XX_IABAR3 (volatile u32 *)IOP3XX_REG_ADDR(0x0190)
#define IOP3XX_IAUBAR3 (volatile u32 *)IOP3XX_REG_ADDR(0x0194)
#define IOP3XX_IALR3 (volatile u32 *)IOP3XX_REG_ADDR(0x0198)
#define IOP3XX_IATVR3 (volatile u32 *)IOP3XX_REG_ADDR(0x019c)
#define IOP3XX_OCCAR (volatile u32 *)IOP3XX_REG_ADDR(0x01a4)
#define IOP3XX_OCCDR (volatile u32 *)IOP3XX_REG_ADDR(0x01ac)
#define IOP3XX_PDSCR (volatile u32 *)IOP3XX_REG_ADDR(0x01bc)
#define IOP3XX_PMCAPID (volatile u8 *)IOP3XX_REG_ADDR(0x01c0)
#define IOP3XX_PMNEXT (volatile u8 *)IOP3XX_REG_ADDR(0x01c1)
#define IOP3XX_APMCR (volatile u16 *)IOP3XX_REG_ADDR(0x01c2)
#define IOP3XX_APMCSR (volatile u16 *)IOP3XX_REG_ADDR(0x01c4)
#define IOP3XX_PCIXCAPID (volatile u8 *)IOP3XX_REG_ADDR(0x01e0)
#define IOP3XX_PCIXNEXT (volatile u8 *)IOP3XX_REG_ADDR(0x01e1)
#define IOP3XX_PCIXCMD (volatile u16 *)IOP3XX_REG_ADDR(0x01e2)
#define IOP3XX_PCIXSR (volatile u32 *)IOP3XX_REG_ADDR(0x01e4)
#define IOP3XX_PCIIRSR (volatile u32 *)IOP3XX_REG_ADDR(0x01ec)
[ARM] 4348/4: iop3xx: Give Linux control over PCI initialization Currently the iop3xx platform support code assumes that RedBoot is the bootloader and has already initialized the ATU. Linux should handle this initialization for three reasons: 1/ The memory map that RedBoot sets up is not optimal (page_to_dma and virt_to_phys return different addresses). The effect of this is that using the dma mapping API for the internal bus dma units generates pci bus addresses that are incorrect for the internal bus. 2/ Not all iop platforms use RedBoot 3/ If the ATU is already initialized it indicates that the iop is an add-in card in another host, it does not own the PCI bus, and should not be re-initialized. Changelog: * rather than change nr_controllers to zero, simply do not call pci_common_init Cc: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-02 20:59:44 +04:00
#define IOP3XX_PCSR_OUT_Q_BUSY (1 << 15)
#define IOP3XX_PCSR_IN_Q_BUSY (1 << 14)
#define IOP3XX_ATUCR_OUT_EN (1 << 1)
#define IOP3XX_INIT_ATU_DEFAULT 0
#define IOP3XX_INIT_ATU_DISABLE -1
#define IOP3XX_INIT_ATU_ENABLE 1
[ARM] 3831/1: iop3xx: factor out common register defines Factor out the register defines for a number of other peripherals common to the iop32x and iop33x. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:25:33 +04:00
/* Messaging Unit */
#define IOP3XX_IMR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0310)
#define IOP3XX_IMR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0314)
#define IOP3XX_OMR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0318)
#define IOP3XX_OMR1 (volatile u32 *)IOP3XX_REG_ADDR(0x031c)
#define IOP3XX_IDR (volatile u32 *)IOP3XX_REG_ADDR(0x0320)
#define IOP3XX_IISR (volatile u32 *)IOP3XX_REG_ADDR(0x0324)
#define IOP3XX_IIMR (volatile u32 *)IOP3XX_REG_ADDR(0x0328)
#define IOP3XX_ODR (volatile u32 *)IOP3XX_REG_ADDR(0x032c)
#define IOP3XX_OISR (volatile u32 *)IOP3XX_REG_ADDR(0x0330)
#define IOP3XX_OIMR (volatile u32 *)IOP3XX_REG_ADDR(0x0334)
#define IOP3XX_MUCR (volatile u32 *)IOP3XX_REG_ADDR(0x0350)
#define IOP3XX_QBAR (volatile u32 *)IOP3XX_REG_ADDR(0x0354)
#define IOP3XX_IFHPR (volatile u32 *)IOP3XX_REG_ADDR(0x0360)
#define IOP3XX_IFTPR (volatile u32 *)IOP3XX_REG_ADDR(0x0364)
#define IOP3XX_IPHPR (volatile u32 *)IOP3XX_REG_ADDR(0x0368)
#define IOP3XX_IPTPR (volatile u32 *)IOP3XX_REG_ADDR(0x036c)
#define IOP3XX_OFHPR (volatile u32 *)IOP3XX_REG_ADDR(0x0370)
#define IOP3XX_OFTPR (volatile u32 *)IOP3XX_REG_ADDR(0x0374)
#define IOP3XX_OPHPR (volatile u32 *)IOP3XX_REG_ADDR(0x0378)
#define IOP3XX_OPTPR (volatile u32 *)IOP3XX_REG_ADDR(0x037c)
#define IOP3XX_IAR (volatile u32 *)IOP3XX_REG_ADDR(0x0380)
/* DMA Controller */
iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver Adds the platform device definitions and the architecture specific support routines (i.e. register initialization and descriptor formats) for the iop-adma driver. Changelog: * add support for > 1k zero sum buffer sizes * added dma/aau platform devices to iq80321 and iq80332 setup * fixed the calculation in iop_desc_is_aligned * support xor buffer sizes larger than 16MB * fix places where software descriptors are assumed to be contiguous, only hardware descriptors are contiguous for up to a PAGE_SIZE buffer size * convert to async_tx * add interrupt support * add platform devices for 80219 boards * do not call platform register macros in driver code * remove switch() statements for compatible register offsets/layouts * change over to bitmap based capabilities * remove unnecessary ARM assembly statement * checkpatch.pl fixes * gpl v2 only correction * phys move to dma_async_tx_descriptor Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-01-02 23:52:31 +03:00
#define IOP3XX_DMA_PHYS_BASE(chan) (IOP3XX_PERIPHERAL_PHYS_BASE + \
(0x400 + (chan << 6)))
#define IOP3XX_DMA_UPPER_PA(chan) (IOP3XX_DMA_PHYS_BASE(chan) + 0x27)
[ARM] 3831/1: iop3xx: factor out common register defines Factor out the register defines for a number of other peripherals common to the iop32x and iop33x. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:25:33 +04:00
/* Peripheral bus interface */
#define IOP3XX_PBCR (volatile u32 *)IOP3XX_REG_ADDR(0x0680)
#define IOP3XX_PBISR (volatile u32 *)IOP3XX_REG_ADDR(0x0684)
#define IOP3XX_PBBAR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0688)
#define IOP3XX_PBLR0 (volatile u32 *)IOP3XX_REG_ADDR(0x068c)
#define IOP3XX_PBBAR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0690)
#define IOP3XX_PBLR1 (volatile u32 *)IOP3XX_REG_ADDR(0x0694)
#define IOP3XX_PBBAR2 (volatile u32 *)IOP3XX_REG_ADDR(0x0698)
#define IOP3XX_PBLR2 (volatile u32 *)IOP3XX_REG_ADDR(0x069c)
#define IOP3XX_PBBAR3 (volatile u32 *)IOP3XX_REG_ADDR(0x06a0)
#define IOP3XX_PBLR3 (volatile u32 *)IOP3XX_REG_ADDR(0x06a4)
#define IOP3XX_PBBAR4 (volatile u32 *)IOP3XX_REG_ADDR(0x06a8)
#define IOP3XX_PBLR4 (volatile u32 *)IOP3XX_REG_ADDR(0x06ac)
#define IOP3XX_PBBAR5 (volatile u32 *)IOP3XX_REG_ADDR(0x06b0)
#define IOP3XX_PBLR5 (volatile u32 *)IOP3XX_REG_ADDR(0x06b4)
#define IOP3XX_PMBR0 (volatile u32 *)IOP3XX_REG_ADDR(0x06c0)
#define IOP3XX_PMBR1 (volatile u32 *)IOP3XX_REG_ADDR(0x06e0)
#define IOP3XX_PMBR2 (volatile u32 *)IOP3XX_REG_ADDR(0x06e4)
/* Peripheral performance monitoring unit */
#define IOP3XX_GTMR (volatile u32 *)IOP3XX_REG_ADDR(0x0700)
#define IOP3XX_ESR (volatile u32 *)IOP3XX_REG_ADDR(0x0704)
#define IOP3XX_EMISR (volatile u32 *)IOP3XX_REG_ADDR(0x0708)
#define IOP3XX_GTSR (volatile u32 *)IOP3XX_REG_ADDR(0x0710)
/* PERCR0 DOESN'T EXIST - index from 1! */
#define IOP3XX_PERCR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0710)
[ARM] 3822/1: iop3xx: rewrite time handling Merge and rewrite the iop32x/iop33x time code to do lost jiffy tracking properly, and put the result in plat-iop/time.c. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:18:16 +04:00
/* Timers */
#define IOP3XX_TU_TMR0 (volatile u32 *)IOP3XX_TIMER_REG(0x0000)
#define IOP3XX_TU_TMR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0004)
#define IOP3XX_TU_TCR0 (volatile u32 *)IOP3XX_TIMER_REG(0x0008)
#define IOP3XX_TU_TCR1 (volatile u32 *)IOP3XX_TIMER_REG(0x000c)
#define IOP3XX_TU_TRR0 (volatile u32 *)IOP3XX_TIMER_REG(0x0010)
#define IOP3XX_TU_TRR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0014)
#define IOP3XX_TU_TISR (volatile u32 *)IOP3XX_TIMER_REG(0x0018)
#define IOP3XX_TU_WDTCR (volatile u32 *)IOP3XX_TIMER_REG(0x001c)
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
#define IOP_TMR_EN 0x02
#define IOP_TMR_RELOAD 0x04
#define IOP_TMR_PRIVILEGED 0x08
#define IOP_TMR_RATIO_1_1 0x00
[ARM] 3822/1: iop3xx: rewrite time handling Merge and rewrite the iop32x/iop33x time code to do lost jiffy tracking properly, and put the result in plat-iop/time.c. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:18:16 +04:00
[ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xx In order for this driver to be shared across the iop architectures the iop3xx and iop13xx header files are modified to present a common interface for the iop_wdt driver. Details: * iop13xx supports disabling the timer while iop3xx does not. This requires a few 'compatibility' definitions in include/asm-arm/hardware/iop3xx.h to preclude adding #ifdef CONFIG_ARCH_IOP13XX blocks to the driver code. * The heartbeat interval is derived from the internal bus clock rate, so this this patch also exports the tick rate to the iop_wdt driver. Cc: Curt Bruns <curt.e.bruns@intel.com> Cc: Peter Milne <peter.milne@d-tacq.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20 05:07:26 +04:00
/* Watchdog timer definitions */
#define IOP_WDTCR_EN_ARM 0x1e1e1e1e
#define IOP_WDTCR_EN 0xe1e1e1e1
/* iop3xx does not support stopping the watchdog, so we just re-arm */
#define IOP_WDTCR_DIS_ARM (IOP_WDTCR_EN_ARM)
#define IOP_WDTCR_DIS (IOP_WDTCR_EN)
[ARM] 3831/1: iop3xx: factor out common register defines Factor out the register defines for a number of other peripherals common to the iop32x and iop33x. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:25:33 +04:00
/* Application accelerator unit */
iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver Adds the platform device definitions and the architecture specific support routines (i.e. register initialization and descriptor formats) for the iop-adma driver. Changelog: * add support for > 1k zero sum buffer sizes * added dma/aau platform devices to iq80321 and iq80332 setup * fixed the calculation in iop_desc_is_aligned * support xor buffer sizes larger than 16MB * fix places where software descriptors are assumed to be contiguous, only hardware descriptors are contiguous for up to a PAGE_SIZE buffer size * convert to async_tx * add interrupt support * add platform devices for 80219 boards * do not call platform register macros in driver code * remove switch() statements for compatible register offsets/layouts * change over to bitmap based capabilities * remove unnecessary ARM assembly statement * checkpatch.pl fixes * gpl v2 only correction * phys move to dma_async_tx_descriptor Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-01-02 23:52:31 +03:00
#define IOP3XX_AAU_PHYS_BASE (IOP3XX_PERIPHERAL_PHYS_BASE + 0x800)
#define IOP3XX_AAU_UPPER_PA (IOP3XX_AAU_PHYS_BASE + 0xa7)
[ARM] 3831/1: iop3xx: factor out common register defines Factor out the register defines for a number of other peripherals common to the iop32x and iop33x. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:25:33 +04:00
[ARM] 3819/1: iop3xx: factor out shared i2c code Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c and include/asm-arm/hardware/iop3xx.h. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:15:21 +04:00
/* I2C bus interface unit */
#define IOP3XX_ICR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1680)
#define IOP3XX_ISR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1684)
#define IOP3XX_ISAR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1688)
#define IOP3XX_IDBR0 (volatile u32 *)IOP3XX_REG_ADDR(0x168c)
#define IOP3XX_IBMR0 (volatile u32 *)IOP3XX_REG_ADDR(0x1694)
#define IOP3XX_ICR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a0)
#define IOP3XX_ISR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a4)
#define IOP3XX_ISAR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16a8)
#define IOP3XX_IDBR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16ac)
#define IOP3XX_IBMR1 (volatile u32 *)IOP3XX_REG_ADDR(0x16b4)
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
/*
* IOP3XX I/O and Mem space regions for PCI autoconfiguration
*/
[ARM] 4348/4: iop3xx: Give Linux control over PCI initialization Currently the iop3xx platform support code assumes that RedBoot is the bootloader and has already initialized the ATU. Linux should handle this initialization for three reasons: 1/ The memory map that RedBoot sets up is not optimal (page_to_dma and virt_to_phys return different addresses). The effect of this is that using the dma mapping API for the internal bus dma units generates pci bus addresses that are incorrect for the internal bus. 2/ Not all iop platforms use RedBoot 3/ If the ATU is already initialized it indicates that the iop is an add-in card in another host, it does not own the PCI bus, and should not be re-initialized. Changelog: * rather than change nr_controllers to zero, simply do not call pci_common_init Cc: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-02 20:59:44 +04:00
#define IOP3XX_PCI_LOWER_MEM_PA 0x80000000
iop3xx: ATU and PCI memory configuration corrected There are two 64 MB outbound memory windows at bus addresses 0x80000000..0x83ffffff and 0x84000000..0x87ffffff for PCI memory. Currently, on iop32x, only the lower window is available for allocations, limiting the available space to 64 MB. On iop33x the full 128 MB can be allocated, but the translation value is wrong for the upper window. The patch enables the full 128 MB space on iop32x and corrects the initialization of OMWTVR1. Redundant definitions are deleted. Tested using a Thecus N2100 board with a graphics adapter in the expansion slot. Both windows are in use: 00:05.0 VGA compatible controller: XGI Technology Inc. (eXtreme Graphics Innovation) Volari Z7 (prog-if 00 [VGA controller]) [...] Region 0: Memory at 80000000 (32-bit, prefetchable) [size=64M] Region 1: Memory at 84080000 (32-bit, non-prefetchable) [size=256K] Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-07-31 13:16:21 +04:00
#define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
#define IOP3XX_PCI_LOWER_IO_PA 0x90000000
ARM: iop3xx: use fixed PCI i/o mapping Move iop33x and iop32x PCI to fixed i/o mapping and remove io.h. This changes the PCI bus addresses from the cpu address to 0 based. It appears that there is translation h/w for this, but its untested. Not sure what to do with io_offset. I think it should always be 0. AFAICT, PCI setup is skipped if the ATU is already setup. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2012-07-04 20:18:40 +04:00
#define IOP3XX_PCI_LOWER_IO_BA 0x00000000
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
#ifndef __ASSEMBLY__
ARM: Fix missing linux/types.h #inclusion in asm/hardware/iop3xx.h arch/arm/include/asm/hardware/iop3xx.h needs to include linux/types.h to avoid the following errors: In file included from arch/arm/plat-iop/restart.c:10:0: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:239:1: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: In function 'read_tmr0': /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:241:2: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: At top level: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:246:31: error: unknown type name 'u32' ... Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-23 19:37:34 +04:00
#include <linux/types.h>
reboot: arm: change reboot_mode to use enum reboot_mode Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 03:01:40 +04:00
#include <linux/reboot.h>
ARM: Fix missing linux/types.h #inclusion in asm/hardware/iop3xx.h arch/arm/include/asm/hardware/iop3xx.h needs to include linux/types.h to avoid the following errors: In file included from arch/arm/plat-iop/restart.c:10:0: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:239:1: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: In function 'read_tmr0': /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:241:2: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: At top level: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:246:31: error: unknown type name 'u32' ... Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-23 19:37:34 +04:00
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
void iop3xx_map_io(void);
ARM: iop32x: use GENERIC_IRQ_MULTI_HANDLER iop32x uses the entry-macro.S file for both the IRQ entry and for hooking into the arch_ret_to_user code path. This is done because the cp6 registers have to be enabled before accessing any of the interrupt controller registers but have to be disabled when running in user space. There is also a lazy-enable logic in cp6.c, but during a hardirq, we know it has to be enabled. Both the cp6-enable code and the code to read the IRQ status can be lifted into the normal generic_handle_arch_irq() path, but the cp6-disable code has to remain in the user return code. As nothing other than iop32x uses this hook, just open-code it there with an ifdef for the platform that can eventually be removed when iop32x has reached the end of its life. The cp6-enable path in the IRQ entry has an extra cp_wait barrier that the trap version does not have, but it is harmless to do it in both cases to simplify the logic here at the cost of a few extra cycles for the trap. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M
2021-11-30 13:21:49 +03:00
void iop_enable_cp6(void);
[ARM] 4184/1: iop: cp6 access handler (undef_hook) Enable svc access to cp6 via an undefined instruction hook. Do not enable access for usr code. This patch also makes iop13xx select PLAT_IOP, this requires a small change to drivers/i2c/busses/i2c-iop3xx.c. Per Lennert Buytenhek's note, the cp6 trap routine is moved to arch/arm/plat-iop Per Nicolas Pitre's note, the cp_wait is skipped since the latency to return to the faulting function is longer than cp_wait. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:12:04 +03:00
void iop_init_cp6_handler(void);
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
void iop_init_time(unsigned long tickrate);
reboot: arm: change reboot_mode to use enum reboot_mode Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 03:01:40 +04:00
void iop3xx_restart(enum reboot_mode, const char *);
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
iop: clockevent support This updates the IOP platform to expose the interrupting timer 0 as a clockevent object. The timer interrupt handler is changed to call the clockevent ->event_handler() instead of timer_tick(), and ->set_next_event() and ->set_mode() operations are added to allow the mode of the timer to be updated (required for ONESHOT/NOHZ mode). Timer 0 must now be properly initialised, which requires a new write_tcr0() function from the mach-specific code. The mode of timer 0 must be read at the start of ->set_mode(), which requires a new read_tmr0() function from the mach- specific code. Initial setup of timer 0 is also rewritten to be more robust. Tested on n2100, compile-tested for all plat-iop machines. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-10-29 21:46:54 +03:00
static inline u32 read_tmr0(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c0, c1, 0" : "=r" (val));
return val;
}
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
static inline void write_tmr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c0, c1, 0" : : "r" (val));
}
static inline void write_tmr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c1, c1, 0" : : "r" (val));
}
static inline u32 read_tcr0(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c2, c1, 0" : "=r" (val));
return val;
}
iop: clockevent support This updates the IOP platform to expose the interrupting timer 0 as a clockevent object. The timer interrupt handler is changed to call the clockevent ->event_handler() instead of timer_tick(), and ->set_next_event() and ->set_mode() operations are added to allow the mode of the timer to be updated (required for ONESHOT/NOHZ mode). Timer 0 must now be properly initialised, which requires a new write_tcr0() function from the mach-specific code. The mode of timer 0 must be read at the start of ->set_mode(), which requires a new read_tmr0() function from the mach- specific code. Initial setup of timer 0 is also rewritten to be more robust. Tested on n2100, compile-tested for all plat-iop machines. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-10-29 21:46:54 +03:00
static inline void write_tcr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c2, c1, 0" : : "r" (val));
}
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
static inline u32 read_tcr1(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c3, c1, 0" : "=r" (val));
return val;
}
iop: clocksource support This updates the IOP platform to expose the free-running timer 1 as a clocksource object. This timer is now also properly initialised, which requires a new write_tcr1() function from the mach-specific code. Apart from the explicit initialisation, there is no functional change in how timer 1 is programmed. Tested on n2100, compile-tested for all plat-iop machines. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-10-29 21:46:54 +03:00
static inline void write_tcr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c3, c1, 0" : : "r" (val));
}
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-13 19:13:34 +03:00
static inline void write_trr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (val));
}
static inline void write_trr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c5, c1, 0" : : "r" (val));
}
static inline void write_tisr(u32 val)
{
asm volatile("mcr p6, 0, %0, c6, c1, 0" : : "r" (val));
}
[ARM] 3819/1: iop3xx: factor out shared i2c code Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c and include/asm-arm/hardware/iop3xx.h. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:15:21 +04:00
[ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xx In order for this driver to be shared across the iop architectures the iop3xx and iop13xx header files are modified to present a common interface for the iop_wdt driver. Details: * iop13xx supports disabling the timer while iop3xx does not. This requires a few 'compatibility' definitions in include/asm-arm/hardware/iop3xx.h to preclude adding #ifdef CONFIG_ARCH_IOP13XX blocks to the driver code. * The heartbeat interval is derived from the internal bus clock rate, so this this patch also exports the tick rate to the iop_wdt driver. Cc: Curt Bruns <curt.e.bruns@intel.com> Cc: Peter Milne <peter.milne@d-tacq.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20 05:07:26 +04:00
static inline u32 read_wdtcr(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c7, c1, 0":"=r" (val));
return val;
}
static inline void write_wdtcr(u32 val)
{
asm volatile("mcr p6, 0, %0, c7, c1, 0"::"r" (val));
}
extern unsigned long get_iop_tick_rate(void);
/* only iop13xx has these registers, we define these to present a
* common register interface for the iop_wdt driver.
*/
#define IOP_RCSR_WDT (0)
static inline u32 read_rcsr(void)
{
return 0;
}
static inline void write_wdtsr(u32 val)
{
do { } while (0);
}
iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver Adds the platform device definitions and the architecture specific support routines (i.e. register initialization and descriptor formats) for the iop-adma driver. Changelog: * add support for > 1k zero sum buffer sizes * added dma/aau platform devices to iq80321 and iq80332 setup * fixed the calculation in iop_desc_is_aligned * support xor buffer sizes larger than 16MB * fix places where software descriptors are assumed to be contiguous, only hardware descriptors are contiguous for up to a PAGE_SIZE buffer size * convert to async_tx * add interrupt support * add platform devices for 80219 boards * do not call platform register macros in driver code * remove switch() statements for compatible register offsets/layouts * change over to bitmap based capabilities * remove unnecessary ARM assembly statement * checkpatch.pl fixes * gpl v2 only correction * phys move to dma_async_tx_descriptor Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-01-02 23:52:31 +03:00
extern struct platform_device iop3xx_dma_0_channel;
extern struct platform_device iop3xx_dma_1_channel;
extern struct platform_device iop3xx_aau_channel;
[ARM] 3819/1: iop3xx: factor out shared i2c code Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c and include/asm-arm/hardware/iop3xx.h. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:15:21 +04:00
extern struct platform_device iop3xx_i2c0_device;
extern struct platform_device iop3xx_i2c1_device;
i2c: iop: Use GPIO descriptors The IOP3xx has some elaborate code to directly slam the GPIO lines multiplexed with I2C down low before enablement, apparently a workaround for a hardware bug found in the early chips. After consulting the developer documentation for IOP80321 and IOP80331 I can clearly see that this may be useful for IOP80321 family (mach-iop32x) but it is highly dubious for any 80331 series or later chip: in these chips the lines are not multiplexed for UARTs. We convert the code to pass optional GPIO descriptors and register these only on the 80321-based boards where it makes sense, optionally obtain them in the driver and use the gpiod_set_raw_value() to ascertain the line gets driven low when needed. The GPIO driver does not give the GPIO chip a reasonable label so the patch also adds that so that these machine descriptor tables can be used. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-06-01 01:37:56 +03:00
extern struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup;
extern struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup;
[ARM] 3824/1: iop3xx: add cp6 enable/disable macros Add macros to enable and disable access to CP6. On the iop3xx, enabling CP6 access unfortunately also enables access to that coprocessor from unprivileged code, so we need these macros to enable and disable access to the coprocessor whenever we need to access it. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:20:55 +04:00
[ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code Introduce the arch/arm/plat-iop directory, for code shared between the iop32x and iop33x, and move the common memory map setup bits there. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-19 02:12:53 +04:00
#endif
#endif
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