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Commit 18b3b7b3 authored by Linus Walleij's avatar Linus Walleij
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ARM: ixp4xx: Drop all common code 

After moving away from all the code we depend on in common we can
get a clean device tree boot and delete the common code in
arch/arm/mach-ixp4xx/common.c altogether.

Two physical register addresses remain in use, just copy these
verbatim into uncompress.h.
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220211223238.648934-13-linus.walleij@linaro.orgSigned-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 00ba9357
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arch/arm/mach-ixp4xx/Makefile
View file @ 18b3b7b3
# SPDX-License-Identifier: GPL-2.0
obj-y += ixp4xx-of.o common.o
obj-y += ixp4xx-of.o
arch/arm/mach-ixp4xx/common.c deleted 100644 → 0
View file @ 00ba9357
/*
* arch/arm/mach-ixp4xx/common.c
*
* Generic code shared across all IXP4XX platforms
*
* Maintainer: Deepak Saxena <dsaxena@plexity.net>
*
* Copyright 2002 (c) Intel Corporation
* Copyright 2003-2004 (c) MontaVista, Software, Inc.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/interrupt.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/export.h>
#include <linux/cpu.h>
#include <linux/pci.h>
#include <linux/sched_clock.h>
#include <linux/soc/ixp4xx/cpu.h>
#include <linux/irqchip/irq-ixp4xx.h>
#include <linux/platform_data/timer-ixp4xx.h>
#include <mach/hardware.h>
#include <linux/uaccess.h>
#include <asm/page.h>
#include <asm/exception.h>
#include <asm/irq.h>
#include <asm/system_misc.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include "irqs.h"
#define IXP4XX_TIMER_FREQ 66666000
/*************************************************************************
* IXP4xx chipset I/O mapping
*************************************************************************/
static struct map_desc ixp4xx_io_desc[] __initdata = {
{ /* UART, Interrupt ctrl, GPIO, timers, NPEs, MACs, USB .... */
.virtual = (unsigned long)IXP4XX_PERIPHERAL_BASE_VIRT,
.pfn = __phys_to_pfn(IXP4XX_PERIPHERAL_BASE_PHYS),
.length = IXP4XX_PERIPHERAL_REGION_SIZE,
.type = MT_DEVICE
}, { /* Expansion Bus Config Registers */
.virtual = (unsigned long)IXP4XX_EXP_CFG_BASE_VIRT,
.pfn = __phys_to_pfn(IXP4XX_EXP_CFG_BASE_PHYS),
.length = IXP4XX_EXP_CFG_REGION_SIZE,
.type = MT_DEVICE
}, { /* PCI Registers */
.virtual = (unsigned long)IXP4XX_PCI_CFG_BASE_VIRT,
.pfn = __phys_to_pfn(IXP4XX_PCI_CFG_BASE_PHYS),
.length = IXP4XX_PCI_CFG_REGION_SIZE,
.type = MT_DEVICE
},
};
void __init ixp4xx_map_io(void)
{
iotable_init(ixp4xx_io_desc, ARRAY_SIZE(ixp4xx_io_desc));
}
void __init ixp4xx_init_irq(void)
{
/*
* ixp4xx does not implement the XScale PWRMODE register
* so it must not call cpu_do_idle().
*/
cpu_idle_poll_ctrl(true);
ixp4xx_irq_init(IXP4XX_INTC_BASE_PHYS,
(cpu_is_ixp46x() || cpu_is_ixp43x()));
}
void __init ixp4xx_timer_init(void)
{
return ixp4xx_timer_setup(IXP4XX_TIMER_BASE_PHYS,
IRQ_IXP4XX_TIMER1,
IXP4XX_TIMER_FREQ);
}
static struct resource ixp4xx_udc_resources[] = {
[0] = {
.start = 0xc800b000,
.end = 0xc800bfff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_IXP4XX_USB,
.end = IRQ_IXP4XX_USB,
.flags = IORESOURCE_IRQ,
},
};
static struct resource ixp4xx_gpio_resource[] = {
{
.start = IXP4XX_GPIO_BASE_PHYS,
.end = IXP4XX_GPIO_BASE_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device ixp4xx_gpio_device = {
.name = "ixp4xx-gpio",
.id = -1,
.dev = {
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = ixp4xx_gpio_resource,
.num_resources = ARRAY_SIZE(ixp4xx_gpio_resource),
};
/*
* USB device controller. The IXP4xx uses the same controller as PXA25X,
* so we just use the same device.
*/
static struct platform_device ixp4xx_udc_device = {
.name = "pxa25x-udc",
.id = -1,
.num_resources = 2,
.resource = ixp4xx_udc_resources,
};
static struct resource ixp4xx_npe_resources[] = {
{
.start = IXP4XX_NPEA_BASE_PHYS,
.end = IXP4XX_NPEA_BASE_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
{
.start = IXP4XX_NPEB_BASE_PHYS,
.end = IXP4XX_NPEB_BASE_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
{
.start = IXP4XX_NPEC_BASE_PHYS,
.end = IXP4XX_NPEC_BASE_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device ixp4xx_npe_device = {
.name = "ixp4xx-npe",
.id = -1,
.num_resources = ARRAY_SIZE(ixp4xx_npe_resources),
.resource = ixp4xx_npe_resources,
};
static struct resource ixp4xx_qmgr_resources[] = {
{
.start = IXP4XX_QMGR_BASE_PHYS,
.end = IXP4XX_QMGR_BASE_PHYS + 0x3fff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_IXP4XX_QM1,
.end = IRQ_IXP4XX_QM1,
.flags = IORESOURCE_IRQ,
},
{
.start = IRQ_IXP4XX_QM2,
.end = IRQ_IXP4XX_QM2,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ixp4xx_qmgr_device = {
.name = "ixp4xx-qmgr",
.id = -1,
.num_resources = ARRAY_SIZE(ixp4xx_qmgr_resources),
.resource = ixp4xx_qmgr_resources,
};
static struct platform_device *ixp4xx_devices[] __initdata = {
&ixp4xx_npe_device,
&ixp4xx_qmgr_device,
&ixp4xx_gpio_device,
&ixp4xx_udc_device,
};
static struct resource ixp46x_i2c_resources[] = {
[0] = {
.start = 0xc8011000,
.end = 0xc801101c,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_IXP4XX_I2C,
.end = IRQ_IXP4XX_I2C,
.flags = IORESOURCE_IRQ
}
};
/* A single 32-bit register on IXP46x */
#define IXP4XX_HWRANDOM_BASE_PHYS 0x70002100
static struct resource ixp46x_hwrandom_resource[] = {
{
.start = IXP4XX_HWRANDOM_BASE_PHYS,
.end = IXP4XX_HWRANDOM_BASE_PHYS + 0x3,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device ixp46x_hwrandom_device = {
.name = "ixp4xx-hwrandom",
.id = -1,
.dev = {
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = ixp46x_hwrandom_resource,
.num_resources = ARRAY_SIZE(ixp46x_hwrandom_resource),
};
/*
* I2C controller. The IXP46x uses the same block as the IOP3xx, so
* we just use the same device name.
*/
static struct platform_device ixp46x_i2c_controller = {
.name = "IOP3xx-I2C",
.id = 0,
.num_resources = 2,
.resource = ixp46x_i2c_resources
};
static struct resource ixp46x_ptp_resources[] = {
DEFINE_RES_MEM(IXP4XX_TIMESYNC_BASE_PHYS, SZ_4K),
DEFINE_RES_IRQ_NAMED(IRQ_IXP4XX_GPIO8, "master"),
DEFINE_RES_IRQ_NAMED(IRQ_IXP4XX_GPIO7, "slave"),
};
static struct platform_device ixp46x_ptp = {
.name = "ptp-ixp46x",
.id = -1,
.resource = ixp46x_ptp_resources,
.num_resources = ARRAY_SIZE(ixp46x_ptp_resources),
};
static struct platform_device *ixp46x_devices[] __initdata = {
&ixp46x_hwrandom_device,
&ixp46x_i2c_controller,
&ixp46x_ptp,
};
unsigned long ixp4xx_exp_bus_size;
EXPORT_SYMBOL(ixp4xx_exp_bus_size);
static struct platform_device_info ixp_dev_info __initdata = {
.name = "ixp4xx_crypto",
.id = 0,
.dma_mask = DMA_BIT_MASK(32),
};
static int __init ixp_crypto_register(void)
{
struct platform_device *pdev;
if (!(~(*IXP4XX_EXP_CFG2) & (IXP4XX_FEATURE_HASH |
IXP4XX_FEATURE_AES | IXP4XX_FEATURE_DES))) {
printk(KERN_ERR "ixp_crypto: No HW crypto available\n");
return -ENODEV;
}
pdev = platform_device_register_full(&ixp_dev_info);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
return 0;
}
void __init ixp4xx_sys_init(void)
{
ixp4xx_exp_bus_size = SZ_16M;
platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
if (IS_ENABLED(CONFIG_CRYPTO_DEV_IXP4XX))
ixp_crypto_register();
if (cpu_is_ixp46x()) {
int region;
platform_add_devices(ixp46x_devices,
ARRAY_SIZE(ixp46x_devices));
for (region = 0; region < 7; region++) {
if((*(IXP4XX_EXP_REG(0x4 * region)) & 0x200)) {
ixp4xx_exp_bus_size = SZ_32M;
break;
}
}
}
printk("IXP4xx: Using %luMiB expansion bus window size\n",
ixp4xx_exp_bus_size >> 20);
}
unsigned long ixp4xx_timer_freq = IXP4XX_TIMER_FREQ;
EXPORT_SYMBOL(ixp4xx_timer_freq);
void ixp4xx_restart(enum reboot_mode mode, const char *cmd)
{
if (mode == REBOOT_SOFT) {
/* Jump into ROM at address 0 */
soft_restart(0);
} else {
/* Use on-chip reset capability */
/* set the "key" register to enable access to
* "timer" and "enable" registers
*/
*IXP4XX_OSWK = IXP4XX_WDT_KEY;
/* write 0 to the timer register for an immediate reset */
*IXP4XX_OSWT = 0;
*IXP4XX_OSWE = IXP4XX_WDT_RESET_ENABLE | IXP4XX_WDT_COUNT_ENABLE;
}
}
arch/arm/mach-ixp4xx/include/mach/hardware.h deleted 100644 → 0
View file @ 00ba9357
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ixp4xx/include/mach/hardware.h
*
* Copyright (C) 2002 Intel Corporation.
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*/
/*
* Hardware definitions for IXP4xx based systems
*/
#ifndef __ASM_ARCH_HARDWARE_H__
#define __ASM_ARCH_HARDWARE_H__
/* Register locations and bits */
#include "ixp4xx-regs.h"
#ifndef __ASSEMBLER__
#include <linux/soc/ixp4xx/cpu.h>
#endif
/* Platform helper functions and definitions */
#include "platform.h"
#endif /* _ASM_ARCH_HARDWARE_H */
arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h deleted 100644 → 0
View file @ 00ba9357
This diff is collapsed.
arch/arm/mach-ixp4xx/include/mach/platform.h deleted 100644 → 0
View file @ 00ba9357
/* SPDX-License-Identifier: GPL-2.0 */
/*
* arch/arm/mach-ixp4xx/include/mach/platform.h
*
* Constants and functions that are useful to IXP4xx platform-specific code
* and device drivers.
*
* Copyright (C) 2004 MontaVista Software, Inc.
*/
#ifndef __ASM_ARCH_HARDWARE_H__
#error "Do not include this directly, instead #include <mach/hardware.h>"
#endif
#ifndef __ASSEMBLY__
#include <linux/reboot.h>
#include <linux/platform_data/eth_ixp4xx.h>
#include <asm/types.h>
#ifndef __ARMEB__
#define REG_OFFSET 0
#else
#define REG_OFFSET 3
#endif
/*
* Expansion bus memory regions
*/
#define IXP4XX_EXP_BUS_BASE_PHYS (0x50000000)
/*
* The expansion bus on the IXP4xx can be configured for either 16 or
* 32MB windows and the CS offset for each region changes based on the
* current configuration. This means that we cannot simply hardcode
* each offset. ixp4xx_sys_init() looks at the expansion bus configuration
* as setup by the bootloader to determine our window size.
*/
extern unsigned long ixp4xx_exp_bus_size;
#define IXP4XX_EXP_BUS_BASE(region)\
(IXP4XX_EXP_BUS_BASE_PHYS + ((region) * ixp4xx_exp_bus_size))
#define IXP4XX_EXP_BUS_END(region)\
(IXP4XX_EXP_BUS_BASE(region) + ixp4xx_exp_bus_size - 1)
/* Those macros can be used to adjust timing and configure
* other features for each region.
*/
#define IXP4XX_EXP_BUS_RECOVERY_T(x) (((x) & 0x0f) << 16)
#define IXP4XX_EXP_BUS_HOLD_T(x) (((x) & 0x03) << 20)
#define IXP4XX_EXP_BUS_STROBE_T(x) (((x) & 0x0f) << 22)
#define IXP4XX_EXP_BUS_SETUP_T(x) (((x) & 0x03) << 26)
#define IXP4XX_EXP_BUS_ADDR_T(x) (((x) & 0x03) << 28)
#define IXP4XX_EXP_BUS_SIZE(x) (((x) & 0x0f) << 10)
#define IXP4XX_EXP_BUS_CYCLES(x) (((x) & 0x03) << 14)
#define IXP4XX_EXP_BUS_CS_EN (1L << 31)
#define IXP4XX_EXP_BUS_BYTE_RD16 (1L << 6)
#define IXP4XX_EXP_BUS_HRDY_POL (1L << 5)
#define IXP4XX_EXP_BUS_MUX_EN (1L << 4)
#define IXP4XX_EXP_BUS_SPLT_EN (1L << 3)
#define IXP4XX_EXP_BUS_WR_EN (1L << 1)
#define IXP4XX_EXP_BUS_BYTE_EN (1L << 0)
#define IXP4XX_EXP_BUS_CYCLES_INTEL 0x00
#define IXP4XX_EXP_BUS_CYCLES_MOTOROLA 0x01
#define IXP4XX_EXP_BUS_CYCLES_HPI 0x02
#define IXP4XX_FLASH_WRITABLE (0x2)
#define IXP4XX_FLASH_DEFAULT (0xbcd23c40)
#define IXP4XX_FLASH_WRITE (0xbcd23c42)
/*
* Clock Speed Definitions.
*/
#define IXP4XX_PERIPHERAL_BUS_CLOCK (66) /* 66MHzi APB BUS */
#define IXP4XX_UART_XTAL 14745600
/*
* Frequency of clock used for primary clocksource
*/
extern unsigned long ixp4xx_timer_freq;
/*
* Functions used by platform-level setup code
*/
extern void ixp4xx_map_io(void);
extern void ixp4xx_init_early(void);
extern void ixp4xx_init_irq(void);
extern void ixp4xx_sys_init(void);
extern void ixp4xx_timer_init(void);
extern void ixp4xx_restart(enum reboot_mode, const char *);
#endif // __ASSEMBLY__
arch/arm/mach-ixp4xx/include/mach/uncompress.h
View file @ 18b3b7b3
......@@ -9,10 +9,12 @@
#ifndef _ARCH_UNCOMPRESS_H_
#define _ARCH_UNCOMPRESS_H_
#include "ixp4xx-regs.h"
#include <asm/mach-types.h>
#include <linux/serial_reg.h>
#define IXP4XX_UART1_BASE_PHYS 0xc8000000
#define IXP4XX_UART2_BASE_PHYS 0xc8001000
#define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
volatile u32* uart_base;
......
arch/arm/mach-ixp4xx/irqs.h deleted 100644 → 0
View file @ 00ba9357
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ixp4xx/include/mach/irqs.h
*
* IRQ definitions for IXP4XX based systems
*
* Copyright (C) 2002 Intel Corporation.
* Copyright (C) 2003 MontaVista Software, Inc.
*/
#ifndef _ARCH_IXP4XX_IRQS_H_
#define _ARCH_IXP4XX_IRQS_H_
#define IRQ_IXP4XX_BASE 16
#define IRQ_IXP4XX_NPEA (IRQ_IXP4XX_BASE + 0)
#define IRQ_IXP4XX_NPEB (IRQ_IXP4XX_BASE + 1)
#define IRQ_IXP4XX_NPEC (IRQ_IXP4XX_BASE + 2)
#define IRQ_IXP4XX_QM1 (IRQ_IXP4XX_BASE + 3)
#define IRQ_IXP4XX_QM2 (IRQ_IXP4XX_BASE + 4)
#define IRQ_IXP4XX_TIMER1 (IRQ_IXP4XX_BASE + 5)
#define IRQ_IXP4XX_GPIO0 (IRQ_IXP4XX_BASE + 6)
#define IRQ_IXP4XX_GPIO1 (IRQ_IXP4XX_BASE + 7)
#define IRQ_IXP4XX_PCI_INT (IRQ_IXP4XX_BASE + 8)
#define IRQ_IXP4XX_PCI_DMA1 (IRQ_IXP4XX_BASE + 9)
#define IRQ_IXP4XX_PCI_DMA2 (IRQ_IXP4XX_BASE + 10)
#define IRQ_IXP4XX_TIMER2 (IRQ_IXP4XX_BASE + 11)
#define IRQ_IXP4XX_USB (IRQ_IXP4XX_BASE + 12)
#define IRQ_IXP4XX_UART2 (IRQ_IXP4XX_BASE + 13)
#define IRQ_IXP4XX_TIMESTAMP (IRQ_IXP4XX_BASE + 14)
#define IRQ_IXP4XX_UART1 (IRQ_IXP4XX_BASE + 15)
#define IRQ_IXP4XX_WDOG (IRQ_IXP4XX_BASE + 16)
#define IRQ_IXP4XX_AHB_PMU (IRQ_IXP4XX_BASE + 17)
#define IRQ_IXP4XX_XSCALE_PMU (IRQ_IXP4XX_BASE + 18)
#define IRQ_IXP4XX_GPIO2 (IRQ_IXP4XX_BASE + 19)
#define IRQ_IXP4XX_GPIO3 (IRQ_IXP4XX_BASE + 20)
#define IRQ_IXP4XX_GPIO4 (IRQ_IXP4XX_BASE + 21)
#define IRQ_IXP4XX_GPIO5 (IRQ_IXP4XX_BASE + 22)
#define IRQ_IXP4XX_GPIO6 (IRQ_IXP4XX_BASE + 23)
#define IRQ_IXP4XX_GPIO7 (IRQ_IXP4XX_BASE + 24)
#define IRQ_IXP4XX_GPIO8 (IRQ_IXP4XX_BASE + 25)
#define IRQ_IXP4XX_GPIO9 (IRQ_IXP4XX_BASE + 26)
#define IRQ_IXP4XX_GPIO10 (IRQ_IXP4XX_BASE + 27)
#define IRQ_IXP4XX_GPIO11 (IRQ_IXP4XX_BASE + 28)
#define IRQ_IXP4XX_GPIO12 (IRQ_IXP4XX_BASE + 29)
#define IRQ_IXP4XX_SW_INT1 (IRQ_IXP4XX_BASE + 30)
#define IRQ_IXP4XX_SW_INT2 (IRQ_IXP4XX_BASE + 31)
#define IRQ_IXP4XX_USB_HOST (IRQ_IXP4XX_BASE + 32)
#define IRQ_IXP4XX_I2C (IRQ_IXP4XX_BASE + 33)
#define IRQ_IXP4XX_SSP (IRQ_IXP4XX_BASE + 34)
#define IRQ_IXP4XX_TSYNC (IRQ_IXP4XX_BASE + 35)
#define IRQ_IXP4XX_EAU_DONE (IRQ_IXP4XX_BASE + 36)
#define IRQ_IXP4XX_SHA_DONE (IRQ_IXP4XX_BASE + 37)
#define IRQ_IXP4XX_SWCP_PE (IRQ_IXP4XX_BASE + 58)
#define IRQ_IXP4XX_QM_PE (IRQ_IXP4XX_BASE + 60)
#define IRQ_IXP4XX_MCU_ECC (IRQ_IXP4XX_BASE + 61)
#define IRQ_IXP4XX_EXP_PE (IRQ_IXP4XX_BASE + 62)
#define _IXP4XX_GPIO_IRQ(n) (IRQ_IXP4XX_GPIO ## n)
#define IXP4XX_GPIO_IRQ(n) _IXP4XX_GPIO_IRQ(n)
#define XSCALE_PMU_IRQ (IRQ_IXP4XX_XSCALE_PMU)
#endif
drivers/crypto/ixp4xx_crypto.c
View file @ 18b3b7b3
......@@ -33,7 +33,6 @@
/* Intermittent includes, delete this after v5.14-rc1 */
#include <linux/soc/ixp4xx/cpu.h>
#include <mach/ixp4xx-regs.h>
#define MAX_KEYLEN 32
......
drivers/net/ethernet/xscale/ptp_ixp46x.c
View file @ 18b3b7b3
......@@ -16,7 +16,6 @@
#include <linux/ptp_clock_kernel.h>
#include <linux/platform_device.h>
#include <linux/soc/ixp4xx/cpu.h>
#include <mach/ixp4xx-regs.h>
#include "ixp46x_ts.h"
......
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