--- /dev/null
+/*
+ * Driver for the NXP SAA7164 PCIe bridge
+ *
+ * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/firmware.h>
+#include <linux/slab.h>
+
+#include "saa7164.h"
+
+#define SAA7164_REV2_FIRMWARE "NXP7164-2010-03-10.1.fw"
+#define SAA7164_REV2_FIRMWARE_SIZE 4019072
+
+#define SAA7164_REV3_FIRMWARE "NXP7164-2010-03-10.1.fw"
+#define SAA7164_REV3_FIRMWARE_SIZE 4019072
+
+struct fw_header {
+ u32 firmwaresize;
+ u32 bslsize;
+ u32 reserved;
+ u32 version;
+};
+
+static int saa7164_dl_wait_ack(struct saa7164_dev *dev, u32 reg)
+{
+ u32 timeout = SAA_DEVICE_TIMEOUT;
+ while ((saa7164_readl(reg) & 0x01) == 0) {
+ timeout -= 10;
+ if (timeout == 0) {
+ printk(KERN_ERR "%s() timeout (no d/l ack)\n",
+ __func__);
+ return -EBUSY;
+ }
+ msleep(100);
+ }
+
+ return 0;
+}
+
+static int saa7164_dl_wait_clr(struct saa7164_dev *dev, u32 reg)
+{
+ u32 timeout = SAA_DEVICE_TIMEOUT;
+ while (saa7164_readl(reg) & 0x01) {
+ timeout -= 10;
+ if (timeout == 0) {
+ printk(KERN_ERR "%s() timeout (no d/l clr)\n",
+ __func__);
+ return -EBUSY;
+ }
+ msleep(100);
+ }
+
+ return 0;
+}
+
+/* TODO: move dlflags into dev-> and change to write/readl/b */
+/* TODO: Excessive levels of debug */
+static int saa7164_downloadimage(struct saa7164_dev *dev, u8 *src, u32 srcsize,
+ u32 dlflags, u8 __iomem *dst, u32 dstsize)
+{
+ u32 reg, timeout, offset;
+ u8 *srcbuf = NULL;
+ int ret;
+
+ u32 dlflag = dlflags;
+ u32 dlflag_ack = dlflag + 4;
+ u32 drflag = dlflag_ack + 4;
+ u32 drflag_ack = drflag + 4;
+ u32 bleflag = drflag_ack + 4;
+
+ dprintk(DBGLVL_FW,
+ "%s(image=%p, size=%d, flags=0x%x, dst=%p, dstsize=0x%x)\n",
+ __func__, src, srcsize, dlflags, dst, dstsize);
+
+ if ((src == NULL) || (dst == NULL)) {
+ ret = -EIO;
+ goto out;
+ }
+
+ srcbuf = kzalloc(4 * 1048576, GFP_KERNEL);
+ if (NULL == srcbuf) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (srcsize > (4*1048576)) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(srcbuf, src, srcsize);
+
+ dprintk(DBGLVL_FW, "%s() dlflag = 0x%x\n", __func__, dlflag);
+ dprintk(DBGLVL_FW, "%s() dlflag_ack = 0x%x\n", __func__, dlflag_ack);
+ dprintk(DBGLVL_FW, "%s() drflag = 0x%x\n", __func__, drflag);
+ dprintk(DBGLVL_FW, "%s() drflag_ack = 0x%x\n", __func__, drflag_ack);
+ dprintk(DBGLVL_FW, "%s() bleflag = 0x%x\n", __func__, bleflag);
+
+ reg = saa7164_readl(dlflag);
+ dprintk(DBGLVL_FW, "%s() dlflag (0x%x)= 0x%x\n", __func__, dlflag, reg);
+ if (reg == 1)
+ dprintk(DBGLVL_FW,
+ "%s() Download flag already set, please reboot\n",
+ __func__);
+
+ /* Indicate download start */
+ saa7164_writel(dlflag, 1);
+ ret = saa7164_dl_wait_ack(dev, dlflag_ack);
+ if (ret < 0)
+ goto out;
+
+ /* Ack download start, then wait for wait */
+ saa7164_writel(dlflag, 0);
+ ret = saa7164_dl_wait_clr(dev, dlflag_ack);
+ if (ret < 0)
+ goto out;
+
+ /* Deal with the raw firmware, in the appropriate chunk size */
+ for (offset = 0; srcsize > dstsize;
+ srcsize -= dstsize, offset += dstsize) {
+
+ dprintk(DBGLVL_FW, "%s() memcpy %d\n", __func__, dstsize);
+ memcpy_toio(dst, srcbuf + offset, dstsize);
+
+ /* Flag the data as ready */
+ saa7164_writel(drflag, 1);
+ ret = saa7164_dl_wait_ack(dev, drflag_ack);
+ if (ret < 0)
+ goto out;
+
+ /* Wait for indication data was received */
+ saa7164_writel(drflag, 0);
+ ret = saa7164_dl_wait_clr(dev, drflag_ack);
+ if (ret < 0)
+ goto out;
+
+ }
+
+ dprintk(DBGLVL_FW, "%s() memcpy(l) %d\n", __func__, dstsize);
+ /* Write last block to the device */
+ memcpy_toio(dst, srcbuf+offset, srcsize);
+
+ /* Flag the data as ready */
+ saa7164_writel(drflag, 1);
+ ret = saa7164_dl_wait_ack(dev, drflag_ack);
+ if (ret < 0)
+ goto out;
+
+ saa7164_writel(drflag, 0);
+ timeout = 0;
+ while (saa7164_readl(bleflag) != SAA_DEVICE_IMAGE_BOOTING) {
+ if (saa7164_readl(bleflag) & SAA_DEVICE_IMAGE_CORRUPT) {
+ printk(KERN_ERR "%s() image corrupt\n", __func__);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (saa7164_readl(bleflag) & SAA_DEVICE_MEMORY_CORRUPT) {
+ printk(KERN_ERR "%s() device memory corrupt\n",
+ __func__);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ msleep(10); /* Checkpatch throws a < 20ms warning */
+ if (timeout++ > 60)
+ break;
+ }
+
+ printk(KERN_INFO "%s() Image downloaded, booting...\n", __func__);
+
+ ret = saa7164_dl_wait_clr(dev, drflag_ack);
+ if (ret < 0)
+ goto out;
+
+ printk(KERN_INFO "%s() Image booted successfully.\n", __func__);
+ ret = 0;
+
+out:
+ kfree(srcbuf);
+ return ret;
+}
+
+/* TODO: Excessive debug */
+/* Load the firmware. Optionally it can be in ROM or newer versions
+ * can be on disk, saving the expense of the ROM hardware. */
+int saa7164_downloadfirmware(struct saa7164_dev *dev)
+{
+ /* u32 second_timeout = 60 * SAA_DEVICE_TIMEOUT; */
+ u32 tmp, filesize, version, err_flags, first_timeout, fwlength;
+ u32 second_timeout, updatebootloader = 1, bootloadersize = 0;
+ const struct firmware *fw = NULL;
+ struct fw_header *hdr, *boothdr = NULL, *fwhdr;
+ u32 bootloaderversion = 0, fwloadersize;
+ u8 *bootloaderoffset = NULL, *fwloaderoffset;
+ char *fwname;
+ int ret;
+
+ dprintk(DBGLVL_FW, "%s()\n", __func__);
+
+ if (saa7164_boards[dev->board].chiprev == SAA7164_CHIP_REV2) {
+ fwname = SAA7164_REV2_FIRMWARE;
+ fwlength = SAA7164_REV2_FIRMWARE_SIZE;
+ } else {
+ fwname = SAA7164_REV3_FIRMWARE;
+ fwlength = SAA7164_REV3_FIRMWARE_SIZE;
+ }
+
+ version = saa7164_getcurrentfirmwareversion(dev);
+
+ if (version == 0x00) {
+
+ second_timeout = 100;
+ first_timeout = 100;
+ err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS);
+ dprintk(DBGLVL_FW, "%s() err_flags = %x\n",
+ __func__, err_flags);
+
+ while (err_flags != SAA_DEVICE_IMAGE_BOOTING) {
+ dprintk(DBGLVL_FW, "%s() err_flags = %x\n",
+ __func__, err_flags);
+ msleep(10); /* Checkpatch throws a < 20ms warning */
+
+ if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) {
+ printk(KERN_ERR "%s() firmware corrupt\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) {
+ printk(KERN_ERR "%s() device memory corrupt\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_NO_IMAGE) {
+ printk(KERN_ERR "%s() no first image\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) {
+ first_timeout -= 10;
+ if (first_timeout == 0) {
+ printk(KERN_ERR
+ "%s() no first image\n",
+ __func__);
+ break;
+ }
+ } else if (err_flags & SAA_DEVICE_IMAGE_LOADING) {
+ second_timeout -= 10;
+ if (second_timeout == 0) {
+ printk(KERN_ERR
+ "%s() FW load time exceeded\n",
+ __func__);
+ break;
+ }
+ } else {
+ second_timeout -= 10;
+ if (second_timeout == 0) {
+ printk(KERN_ERR
+ "%s() Unknown bootloader flags 0x%x\n",
+ __func__, err_flags);
+ break;
+ }
+ }
+
+ err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS);
+ } /* While != Booting */
+
+ if (err_flags == SAA_DEVICE_IMAGE_BOOTING) {
+ dprintk(DBGLVL_FW, "%s() Loader 1 has loaded.\n",
+ __func__);
+ first_timeout = SAA_DEVICE_TIMEOUT;
+ second_timeout = 60 * SAA_DEVICE_TIMEOUT;
+ second_timeout = 100;
+
+ err_flags = saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS);
+ dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n",
+ __func__, err_flags);
+ while (err_flags != SAA_DEVICE_IMAGE_BOOTING) {
+ dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n",
+ __func__, err_flags);
+ msleep(10); /* Checkpatch throws a < 20ms warning */
+
+ if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) {
+ printk(KERN_ERR
+ "%s() firmware corrupt\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) {
+ printk(KERN_ERR
+ "%s() device memory corrupt\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_NO_IMAGE) {
+ printk(KERN_ERR "%s() no first image\n",
+ __func__);
+ break;
+ }
+ if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) {
+ first_timeout -= 10;
+ if (first_timeout == 0) {
+ printk(KERN_ERR
+ "%s() no second image\n",
+ __func__);
+ break;
+ }
+ } else if (err_flags &
+ SAA_DEVICE_IMAGE_LOADING) {
+ second_timeout -= 10;
+ if (second_timeout == 0) {
+ printk(KERN_ERR
+ "%s() FW load time exceeded\n",
+ __func__);
+ break;
+ }
+ } else {
+ second_timeout -= 10;
+ if (second_timeout == 0) {
+ printk(KERN_ERR
+ "%s() Unknown bootloader flags 0x%x\n",
+ __func__, err_flags);
+ break;
+ }
+ }
+
+ err_flags =
+ saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS);
+ } /* err_flags != SAA_DEVICE_IMAGE_BOOTING */
+
+ dprintk(DBGLVL_FW, "%s() Loader flags 1:0x%x 2:0x%x.\n",
+ __func__,
+ saa7164_readl(SAA_BOOTLOADERERROR_FLAGS),
+ saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS));
+
+ } /* err_flags == SAA_DEVICE_IMAGE_BOOTING */
+
+ /* It's possible for both firmwares to have booted,
+ * but that doesn't mean they've finished booting yet.
+ */
+ if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
+ SAA_DEVICE_IMAGE_BOOTING) &&
+ (saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) ==
+ SAA_DEVICE_IMAGE_BOOTING)) {
+
+
+ dprintk(DBGLVL_FW, "%s() Loader 2 has loaded.\n",
+ __func__);
+
+ first_timeout = SAA_DEVICE_TIMEOUT;
+ while (first_timeout) {
+ msleep(10); /* Checkpatch throws a < 20ms warning */
+
+ version =
+ saa7164_getcurrentfirmwareversion(dev);
+ if (version) {
+ dprintk(DBGLVL_FW,
+ "%s() All f/w loaded successfully\n",
+ __func__);
+ break;
+ } else {
+ first_timeout -= 10;
+ if (first_timeout == 0) {
+ printk(KERN_ERR
+ "%s() FW did not boot\n",
+ __func__);
+ break;
+ }
+ }
+ }
+ }
+ version = saa7164_getcurrentfirmwareversion(dev);
+ } /* version == 0 */
+
+ /* Has the firmware really booted? */
+ if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
+ SAA_DEVICE_IMAGE_BOOTING) &&
+ (saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) ==
+ SAA_DEVICE_IMAGE_BOOTING) && (version == 0)) {
+
+ printk(KERN_ERR
+ "%s() The firmware hung, probably bad firmware\n",
+ __func__);
+
+ /* Tell the second stage loader we have a deadlock */
+ saa7164_writel(SAA_DEVICE_DEADLOCK_DETECTED_OFFSET,
+ SAA_DEVICE_DEADLOCK_DETECTED);
+
+ saa7164_getfirmwarestatus(dev);
+
+ return -ENOMEM;
+ }
+
+ dprintk(DBGLVL_FW, "Device has Firmware Version %d.%d.%d.%d\n",
+ (version & 0x0000fc00) >> 10,
+ (version & 0x000003e0) >> 5,
+ (version & 0x0000001f),
+ (version & 0xffff0000) >> 16);
+
+ /* Load the firmwware from the disk if required */
+ if (version == 0) {
+
+ printk(KERN_INFO "%s() Waiting for firmware upload (%s)\n",
+ __func__, fwname);
+
+ ret = request_firmware(&fw, fwname, &dev->pci->dev);
+ if (ret) {
+ printk(KERN_ERR "%s() Upload failed. "
+ "(file not found?)\n", __func__);
+ return -ENOMEM;
+ }
+
+ printk(KERN_INFO "%s() firmware read %Zu bytes.\n",
+ __func__, fw->size);
+
+ if (fw->size != fwlength) {
+ printk(KERN_ERR "xc5000: firmware incorrect size\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ printk(KERN_INFO "%s() firmware loaded.\n", __func__);
+
+ hdr = (struct fw_header *)fw->data;
+ printk(KERN_INFO "Firmware file header part 1:\n");
+ printk(KERN_INFO " .FirmwareSize = 0x%x\n", hdr->firmwaresize);
+ printk(KERN_INFO " .BSLSize = 0x%x\n", hdr->bslsize);
+ printk(KERN_INFO " .Reserved = 0x%x\n", hdr->reserved);
+ printk(KERN_INFO " .Version = 0x%x\n", hdr->version);
+
+ /* Retrieve bootloader if reqd */
+ if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0))
+ /* Second bootloader in the firmware file */
+ filesize = hdr->reserved * 16;
+ else
+ filesize = (hdr->firmwaresize + hdr->bslsize) *
+ 16 + sizeof(struct fw_header);
+
+ printk(KERN_INFO "%s() SecBootLoader.FileSize = %d\n",
+ __func__, filesize);
+
+ /* Get bootloader (if reqd) and firmware header */
+ if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) {
+ /* Second boot loader is required */
+
+ /* Get the loader header */
+ boothdr = (struct fw_header *)(fw->data +
+ sizeof(struct fw_header));
+
+ bootloaderversion =
+ saa7164_readl(SAA_DEVICE_2ND_VERSION);
+ dprintk(DBGLVL_FW, "Onboard BootLoader:\n");
+ dprintk(DBGLVL_FW, "->Flag 0x%x\n",
+ saa7164_readl(SAA_BOOTLOADERERROR_FLAGS));
+ dprintk(DBGLVL_FW, "->Ack 0x%x\n",
+ saa7164_readl(SAA_DATAREADY_FLAG_ACK));
+ dprintk(DBGLVL_FW, "->FW Version 0x%x\n", version);
+ dprintk(DBGLVL_FW, "->Loader Version 0x%x\n",
+ bootloaderversion);
+
+ if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
+ 0x03) && (saa7164_readl(SAA_DATAREADY_FLAG_ACK)
+ == 0x00) && (version == 0x00)) {
+
+ dprintk(DBGLVL_FW, "BootLoader version in "
+ "rom %d.%d.%d.%d\n",
+ (bootloaderversion & 0x0000fc00) >> 10,
+ (bootloaderversion & 0x000003e0) >> 5,
+ (bootloaderversion & 0x0000001f),
+ (bootloaderversion & 0xffff0000) >> 16
+ );
+ dprintk(DBGLVL_FW, "BootLoader version "
+ "in file %d.%d.%d.%d\n",
+ (boothdr->version & 0x0000fc00) >> 10,
+ (boothdr->version & 0x000003e0) >> 5,
+ (boothdr->version & 0x0000001f),
+ (boothdr->version & 0xffff0000) >> 16
+ );
+
+ if (bootloaderversion == boothdr->version)
+ updatebootloader = 0;
+ }
+
+ /* Calculate offset to firmware header */
+ tmp = (boothdr->firmwaresize + boothdr->bslsize) * 16 +
+ (sizeof(struct fw_header) +
+ sizeof(struct fw_header));
+
+ fwhdr = (struct fw_header *)(fw->data+tmp);
+ } else {
+ /* No second boot loader */
+ fwhdr = hdr;
+ }
+
+ dprintk(DBGLVL_FW, "Firmware version in file %d.%d.%d.%d\n",
+ (fwhdr->version & 0x0000fc00) >> 10,
+ (fwhdr->version & 0x000003e0) >> 5,
+ (fwhdr->version & 0x0000001f),
+ (fwhdr->version & 0xffff0000) >> 16
+ );
+
+ if (version == fwhdr->version) {
+ /* No download, firmware already on board */
+ ret = 0;
+ goto out;
+ }
+
+ if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) {
+ if (updatebootloader) {
+ /* Get ready to upload the bootloader */
+ bootloadersize = (boothdr->firmwaresize +
+ boothdr->bslsize) * 16 +
+ sizeof(struct fw_header);
+
+ bootloaderoffset = (u8 *)(fw->data +
+ sizeof(struct fw_header));
+
+ dprintk(DBGLVL_FW, "bootloader d/l starts.\n");
+ printk(KERN_INFO "%s() FirmwareSize = 0x%x\n",
+ __func__, boothdr->firmwaresize);
+ printk(KERN_INFO "%s() BSLSize = 0x%x\n",
+ __func__, boothdr->bslsize);
+ printk(KERN_INFO "%s() Reserved = 0x%x\n",
+ __func__, boothdr->reserved);
+ printk(KERN_INFO "%s() Version = 0x%x\n",
+ __func__, boothdr->version);
+ ret = saa7164_downloadimage(
+ dev,
+ bootloaderoffset,
+ bootloadersize,
+ SAA_DOWNLOAD_FLAGS,
+ dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET,
+ SAA_DEVICE_BUFFERBLOCKSIZE);
+ if (ret < 0) {
+ printk(KERN_ERR
+ "bootloader d/l has failed\n");
+ goto out;
+ }
+ dprintk(DBGLVL_FW,
+ "bootloader download complete.\n");
+
+ }
+
+ printk(KERN_ERR "starting firmware download(2)\n");
+ bootloadersize = (boothdr->firmwaresize +
+ boothdr->bslsize) * 16 +
+ sizeof(struct fw_header);
+
+ bootloaderoffset =
+ (u8 *)(fw->data + sizeof(struct fw_header));
+
+ fwloaderoffset = bootloaderoffset + bootloadersize;
+
+ /* TODO: fix this bounds overrun here with old f/ws */
+ fwloadersize = (fwhdr->firmwaresize + fwhdr->bslsize) *
+ 16 + sizeof(struct fw_header);
+
+ ret = saa7164_downloadimage(
+ dev,
+ fwloaderoffset,
+ fwloadersize,
+ SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET,
+ dev->bmmio + SAA_DEVICE_2ND_DOWNLOAD_OFFSET,
+ SAA_DEVICE_2ND_BUFFERBLOCKSIZE);
+ if (ret < 0) {
+ printk(KERN_ERR "firmware download failed\n");
+ goto out;
+ }
+ printk(KERN_ERR "firmware download complete.\n");
+
+ } else {
+
+ /* No bootloader update reqd, download firmware only */
+ printk(KERN_ERR "starting firmware download(3)\n");
+
+ ret = saa7164_downloadimage(
+ dev,
+ (u8 *)fw->data,
+ fw->size,
+ SAA_DOWNLOAD_FLAGS,
+ dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET,
+ SAA_DEVICE_BUFFERBLOCKSIZE);
+ if (ret < 0) {
+ printk(KERN_ERR "firmware download failed\n");
+ goto out;
+ }
+ printk(KERN_ERR "firmware download complete.\n");
+ }
+ }
+
+ dev->firmwareloaded = 1;
+ ret = 0;
+
+out:
+ release_firmware(fw);
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff