luckfox-pico-sdk/sysdrv/source/kernel/arch/mips/ralink/ill_acc.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

89 lines
2.0 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
*
* Copyright (C) 2013 John Crispin <john@phrozen.org>
*/
#include <linux/interrupt.h>
#include <linux/of_platform.h>
#include <linux/of_irq.h>
#include <asm/mach-ralink/ralink_regs.h>
#define REG_ILL_ACC_ADDR 0x10
#define REG_ILL_ACC_TYPE 0x14
#define ILL_INT_STATUS BIT(31)
#define ILL_ACC_WRITE BIT(30)
#define ILL_ACC_LEN_M 0xff
#define ILL_ACC_OFF_M 0xf
#define ILL_ACC_OFF_S 16
#define ILL_ACC_ID_M 0x7
#define ILL_ACC_ID_S 8
#define DRV_NAME "ill_acc"
static const char * const ill_acc_ids[] = {
"cpu", "dma", "ppe", "pdma rx", "pdma tx", "pci/e", "wmac", "usb",
};
static irqreturn_t ill_acc_irq_handler(int irq, void *_priv)
{
struct device *dev = (struct device *) _priv;
u32 addr = rt_memc_r32(REG_ILL_ACC_ADDR);
u32 type = rt_memc_r32(REG_ILL_ACC_TYPE);
dev_err(dev, "illegal %s access from %s - addr:0x%08x offset:%d len:%d\n",
(type & ILL_ACC_WRITE) ? ("write") : ("read"),
ill_acc_ids[(type >> ILL_ACC_ID_S) & ILL_ACC_ID_M],
addr, (type >> ILL_ACC_OFF_S) & ILL_ACC_OFF_M,
type & ILL_ACC_LEN_M);
rt_memc_w32(ILL_INT_STATUS, REG_ILL_ACC_TYPE);
return IRQ_HANDLED;
}
static int __init ill_acc_of_setup(void)
{
struct platform_device *pdev;
struct device_node *np;
int irq;
/* somehow this driver breaks on RT5350 */
if (of_machine_is_compatible("ralink,rt5350-soc"))
return -EINVAL;
np = of_find_compatible_node(NULL, NULL, "ralink,rt3050-memc");
if (!np)
return -EINVAL;
pdev = of_find_device_by_node(np);
if (!pdev) {
pr_err("%pOFn: failed to lookup pdev\n", np);
of_node_put(np);
return -EINVAL;
}
irq = irq_of_parse_and_map(np, 0);
if (!irq) {
dev_err(&pdev->dev, "failed to get irq\n");
put_device(&pdev->dev);
return -EINVAL;
}
if (request_irq(irq, ill_acc_irq_handler, 0, "ill_acc", &pdev->dev)) {
dev_err(&pdev->dev, "failed to request irq\n");
put_device(&pdev->dev);
return -EINVAL;
}
rt_memc_w32(ILL_INT_STATUS, REG_ILL_ACC_TYPE);
dev_info(&pdev->dev, "irq registered\n");
return 0;
}
arch_initcall(ill_acc_of_setup);