luckfox-pico-sdk/sysdrv/source/kernel/drivers/mtd/nand/raw/denali_pci.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

140 lines
3.3 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* NAND Flash Controller Device Driver
* Copyright © 2009-2010, Intel Corporation and its suppliers.
*/
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "denali.h"
#define DENALI_NAND_NAME "denali-nand-pci"
#define INTEL_CE4100 1
#define INTEL_MRST 2
/* List of platforms this NAND controller has be integrated into */
static const struct pci_device_id denali_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x0701), INTEL_CE4100 },
{ PCI_VDEVICE(INTEL, 0x0809), INTEL_MRST },
{ /* end: all zeroes */ }
};
MODULE_DEVICE_TABLE(pci, denali_pci_ids);
NAND_ECC_CAPS_SINGLE(denali_pci_ecc_caps, denali_calc_ecc_bytes, 512, 8, 15);
static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
resource_size_t csr_base, mem_base;
unsigned long csr_len, mem_len;
struct denali_controller *denali;
struct denali_chip *dchip;
int nsels, ret, i;
denali = devm_kzalloc(&dev->dev, sizeof(*denali), GFP_KERNEL);
if (!denali)
return -ENOMEM;
ret = pcim_enable_device(dev);
if (ret) {
dev_err(&dev->dev, "Spectra: pci_enable_device failed.\n");
return ret;
}
if (id->driver_data == INTEL_CE4100) {
mem_base = pci_resource_start(dev, 0);
mem_len = pci_resource_len(dev, 1);
csr_base = pci_resource_start(dev, 1);
csr_len = pci_resource_len(dev, 1);
} else {
csr_base = pci_resource_start(dev, 0);
csr_len = pci_resource_len(dev, 0);
mem_base = pci_resource_start(dev, 1);
mem_len = pci_resource_len(dev, 1);
if (!mem_len) {
mem_base = csr_base + csr_len;
mem_len = csr_len;
}
}
pci_set_master(dev);
denali->dev = &dev->dev;
denali->irq = dev->irq;
denali->ecc_caps = &denali_pci_ecc_caps;
denali->clk_rate = 50000000; /* 50 MHz */
denali->clk_x_rate = 200000000; /* 200 MHz */
ret = pci_request_regions(dev, DENALI_NAND_NAME);
if (ret) {
dev_err(&dev->dev, "Spectra: Unable to request memory regions\n");
return ret;
}
denali->reg = devm_ioremap(denali->dev, csr_base, csr_len);
if (!denali->reg) {
dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
return -ENOMEM;
}
denali->host = devm_ioremap(denali->dev, mem_base, mem_len);
if (!denali->host) {
dev_err(&dev->dev, "Spectra: ioremap failed!");
return -ENOMEM;
}
ret = denali_init(denali);
if (ret)
return ret;
nsels = denali->nbanks;
dchip = devm_kzalloc(denali->dev, struct_size(dchip, sels, nsels),
GFP_KERNEL);
if (!dchip) {
ret = -ENOMEM;
goto out_remove_denali;
}
dchip->chip.base.ecc.user_conf.flags |= NAND_ECC_MAXIMIZE_STRENGTH;
dchip->nsels = nsels;
for (i = 0; i < nsels; i++)
dchip->sels[i].bank = i;
ret = denali_chip_init(denali, dchip);
if (ret)
goto out_remove_denali;
pci_set_drvdata(dev, denali);
return 0;
out_remove_denali:
denali_remove(denali);
return ret;
}
static void denali_pci_remove(struct pci_dev *dev)
{
struct denali_controller *denali = pci_get_drvdata(dev);
denali_remove(denali);
}
static struct pci_driver denali_pci_driver = {
.name = DENALI_NAND_NAME,
.id_table = denali_pci_ids,
.probe = denali_pci_probe,
.remove = denali_pci_remove,
};
module_pci_driver(denali_pci_driver);
MODULE_DESCRIPTION("PCI driver for Denali NAND controller");
MODULE_AUTHOR("Intel Corporation and its suppliers");
MODULE_LICENSE("GPL v2");