1 files changed, 0 insertions, 394 deletions
diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
deleted file mode 100644
index 3e154562c64d..000000000000
--- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
+++ /dev/null
@@ -1,394 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/firmware.h>
-#include <asm/unaligned.h>
-
-#include "gs_fpgaboot.h"
-#include "io.h"
-
-#define DEVICE_NAME "device"
-#define CLASS_NAME  "fpgaboot"
-
-static u8 bits_magic[] = {
-	0x0, 0x9, 0xf, 0xf0, 0xf, 0xf0,
-	0xf, 0xf0, 0xf, 0xf0, 0x0, 0x0, 0x1};
-
-/* fake device for request_firmware */
-static struct platform_device	*firmware_pdev;
-
-static char	*file = "xlinx_fpga_firmware.bit";
-module_param(file, charp, 0444);
-MODULE_PARM_DESC(file, "Xilinx FPGA firmware file.");
-
-static void read_bitstream(u8 *bitdata, u8 *buf, int *offset, int rdsize)
-{
-	memcpy(buf, bitdata + *offset, rdsize);
-	*offset += rdsize;
-}
-
-static int readinfo_bitstream(u8 *bitdata, u8 *buf, int size, int *offset)
-{
-	u8 tbuf[2];
-	u16 len;
-
-	/* read section char */
-	read_bitstream(bitdata, tbuf, offset, 1);
-
-	/* read length */
-	read_bitstream(bitdata, tbuf, offset, 2);
-
-	len = get_unaligned_be16(tbuf);
-	if (len >= size) {
-		pr_err("error: readinfo buffer too small\n");
-		return -EINVAL;
-	}
-
-	read_bitstream(bitdata, buf, offset, len);
-	buf[len] = '\0';
-
-	return 0;
-}
-
-/*
- * read bitdata length
- */
-static int readlength_bitstream(u8 *bitdata, int *lendata, int *offset)
-{
-	u8 tbuf[4];
-
-	/* read section char */
-	read_bitstream(bitdata, tbuf, offset, 1);
-
-	/* make sure it is section 'e' */
-	if (tbuf[0] != 'e') {
-		pr_err("error: length section is not 'e', but %c\n", tbuf[0]);
-		return -EINVAL;
-	}
-
-	/* read 4bytes length */
-	read_bitstream(bitdata, tbuf, offset, 4);
-
-	*lendata = get_unaligned_be32(tbuf);
-
-	return 0;
-}
-
-/*
- * read first 13 bytes to check bitstream magic number
- */
-static int readmagic_bitstream(u8 *bitdata, int *offset)
-{
-	u8 buf[13];
-	int r;
-
-	read_bitstream(bitdata, buf, offset, 13);
-	r = memcmp(buf, bits_magic, 13);
-	if (r) {
-		pr_err("error: corrupted header\n");
-		return -EINVAL;
-	}
-	pr_info("bitstream file magic number Ok\n");
-
-	*offset = 13;	/* magic length */
-
-	return 0;
-}
-
-/*
- * NOTE: supports only bitstream format
- */
-static enum fmt_image get_imageformat(void)
-{
-	return f_bit;
-}
-
-static void gs_print_header(struct fpgaimage *fimage)
-{
-	pr_info("file: %s\n", fimage->filename);
-	pr_info("part: %s\n", fimage->part);
-	pr_info("date: %s\n", fimage->date);
-	pr_info("time: %s\n", fimage->time);
-	pr_info("lendata: %d\n", fimage->lendata);
-}
-
-static int gs_read_bitstream(struct fpgaimage *fimage)
-{
-	u8 *bitdata;
-	int offset;
-	int err;
-
-	offset = 0;
-	bitdata = (u8 *)fimage->fw_entry->data;
-
-	err = readmagic_bitstream(bitdata, &offset);
-	if (err)
-		return err;
-
-	err = readinfo_bitstream(bitdata, fimage->filename, MAX_STR, &offset);
-	if (err)
-		return err;
-	err = readinfo_bitstream(bitdata, fimage->part, MAX_STR, &offset);
-	if (err)
-		return err;
-	err = readinfo_bitstream(bitdata, fimage->date, MAX_STR, &offset);
-	if (err)
-		return err;
-	err = readinfo_bitstream(bitdata, fimage->time, MAX_STR, &offset);
-	if (err)
-		return err;
-
-	err = readlength_bitstream(bitdata, &fimage->lendata, &offset);
-	if (err)
-		return err;
-
-	fimage->fpgadata = bitdata + offset;
-
-	return 0;
-}
-
-static int gs_read_image(struct fpgaimage *fimage)
-{
-	int img_fmt;
-	int err;
-
-	img_fmt = get_imageformat();
-
-	switch (img_fmt) {
-	case f_bit:
-		pr_info("image is bitstream format\n");
-		err = gs_read_bitstream(fimage);
-		if (err)
-			return err;
-		break;
-	default:
-		pr_err("unsupported fpga image format\n");
-		return -EINVAL;
-	}
-
-	gs_print_header(fimage);
-
-	return 0;
-}
-
-static int gs_load_image(struct fpgaimage *fimage, char *fw_file)
-{
-	int err;
-
-	pr_info("load fpgaimage %s\n", fw_file);
-
-	err = request_firmware(&fimage->fw_entry, fw_file, &firmware_pdev->dev);
-	if (err != 0) {
-		pr_err("firmware %s is missing, cannot continue.\n", fw_file);
-		return err;
-	}
-
-	return 0;
-}
-
-static int gs_download_image(struct fpgaimage *fimage, enum wbus bus_bytes)
-{
-	u8 *bitdata;
-	int size, i, cnt;
-
-	cnt = 0;
-	bitdata = (u8 *)fimage->fpgadata;
-	size = fimage->lendata;
-
-#ifdef DEBUG_FPGA
-	print_hex_dump_bytes("bitfile sample: ", DUMP_PREFIX_OFFSET,
-			     bitdata, 0x100);
-#endif /* DEBUG_FPGA */
-	if (!xl_supported_prog_bus_width(bus_bytes)) {
-		pr_err("unsupported program bus width %d\n",
-		       bus_bytes);
-		return -EINVAL;
-	}
-
-	/* Bring csi_b, rdwr_b Low and program_b High */
-	xl_program_b(1);
-	xl_rdwr_b(0);
-	xl_csi_b(0);
-
-	/* Configuration reset */
-	xl_program_b(0);
-	msleep(20);
-	xl_program_b(1);
-
-	/* Wait for Device Initialization */
-	while (xl_get_init_b() == 0)
-		;
-
-	pr_info("device init done\n");
-
-	for (i = 0; i < size; i += bus_bytes)
-		xl_shift_bytes_out(bus_bytes, bitdata + i);
-
-	pr_info("program done\n");
-
-	/* Check INIT_B */
-	if (xl_get_init_b() == 0) {
-		pr_err("init_b 0\n");
-		return -EIO;
-	}
-
-	while (xl_get_done_b() == 0) {
-		if (cnt++ > MAX_WAIT_DONE) {
-			pr_err("init_B %d\n", xl_get_init_b());
-			break;
-		}
-	}
-
-	if (cnt > MAX_WAIT_DONE) {
-		pr_err("fpga download fail\n");
-		return -EIO;
-	}
-
-	pr_info("download fpgaimage\n");
-
-	/* Compensate for Special Startup Conditions */
-	xl_shift_cclk(8);
-
-	return 0;
-}
-
-static int gs_release_image(struct fpgaimage *fimage)
-{
-	release_firmware(fimage->fw_entry);
-	pr_info("release fpgaimage\n");
-
-	return 0;
-}
-
-/*
- * NOTE: supports systemmap parallel programming
- */
-static int gs_set_download_method(struct fpgaimage *fimage)
-{
-	pr_info("set program method\n");
-
-	fimage->dmethod = m_systemmap;
-
-	pr_info("systemmap program method\n");
-
-	return 0;
-}
-
-static int init_driver(void)
-{
-	firmware_pdev = platform_device_register_simple("fpgaboot", -1,
-							NULL, 0);
-	return PTR_ERR_OR_ZERO(firmware_pdev);
-}
-
-static int gs_fpgaboot(void)
-{
-	int err;
-	struct fpgaimage	*fimage;
-
-	fimage = kmalloc(sizeof(*fimage), GFP_KERNEL);
-	if (!fimage)
-		return -ENOMEM;
-
-	err = gs_load_image(fimage, file);
-	if (err) {
-		pr_err("gs_load_image error\n");
-		goto err_out1;
-	}
-
-	err = gs_read_image(fimage);
-	if (err) {
-		pr_err("gs_read_image error\n");
-		goto err_out2;
-	}
-
-	err = gs_set_download_method(fimage);
-	if (err) {
-		pr_err("gs_set_download_method error\n");
-		goto err_out2;
-	}
-
-	err = gs_download_image(fimage, bus_2byte);
-	if (err) {
-		pr_err("gs_download_image error\n");
-		goto err_out2;
-	}
-
-	err = gs_release_image(fimage);
-	if (err) {
-		pr_err("gs_release_image error\n");
-		goto err_out1;
-	}
-
-	kfree(fimage);
-	return 0;
-
-err_out2:
-	err = gs_release_image(fimage);
-	if (err)
-		pr_err("gs_release_image error\n");
-err_out1:
-	kfree(fimage);
-
-	return err;
-}
-
-static int __init gs_fpgaboot_init(void)
-{
-	int err;
-
-	pr_info("FPGA DOWNLOAD --->\n");
-
-	pr_info("FPGA image file name: %s\n", file);
-
-	err = init_driver();
-	if (err) {
-		pr_err("FPGA DRIVER INIT FAIL!!\n");
-		return err;
-	}
-
-	err = xl_init_io();
-	if (err) {
-		pr_err("GPIO INIT FAIL!!\n");
-		goto errout;
-	}
-
-	err = gs_fpgaboot();
-	if (err) {
-		pr_err("FPGA DOWNLOAD FAIL!!\n");
-		goto errout;
-	}
-
-	pr_info("FPGA DOWNLOAD DONE <---\n");
-
-	return 0;
-
-errout:
-	platform_device_unregister(firmware_pdev);
-
-	return err;
-}
-
-static void __exit gs_fpgaboot_exit(void)
-{
-	platform_device_unregister(firmware_pdev);
-	pr_info("FPGA image download module removed\n");
-}
-
-module_init(gs_fpgaboot_init);
-module_exit(gs_fpgaboot_exit);
-
-MODULE_AUTHOR("Insop Song");
-MODULE_DESCRIPTION("Xlinix FPGA firmware download");
-MODULE_LICENSE("GPL");