// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (C) 2017 Intel Corporation <www.intel.com>
+ * Copyright (C) 2017-2019 Intel Corporation <www.intel.com>
*/
-
#include <asm/io.h>
#include <asm/arch/fpga_manager.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/sdram.h>
#include <asm/arch/misc.h>
#include <altera.h>
+#include <asm/arch/pinmux.h>
#include <common.h>
+#include <dm/ofnode.h>
#include <errno.h>
+#include <fs_loader.h>
#include <wait_bit.h>
#include <watchdog.h>
#define COMPRESSION_OFFSET 229
#define FPGA_TIMEOUT_MSEC 1000 /* timeout in ms */
#define FPGA_TIMEOUT_CNT 0x1000000
+#define DEFAULT_DDR_LOAD_ADDRESS 0x400
+
+DECLARE_GLOBAL_DATA_PTR;
static const struct socfpga_fpga_manager *fpga_manager_base =
(void *)SOCFPGA_FPGAMGRREGS_ADDRESS;
return 0;
}
-/*
- * FPGA Manager to program the FPGA. This is the interface used by FPGA driver.
- * Return 0 for sucess, non-zero for error.
- */
+ofnode get_fpga_mgr_ofnode(ofnode from)
+{
+ return ofnode_by_compatible(from, "altr,socfpga-a10-fpga-mgr");
+}
+
+const char *get_fpga_filename(void)
+{
+ const char *fpga_filename = NULL;
+
+ ofnode fpgamgr_node = get_fpga_mgr_ofnode(ofnode_null());
+
+ if (ofnode_valid(fpgamgr_node))
+ fpga_filename = ofnode_read_string(fpgamgr_node,
+ "altr,bitstream");
+
+ return fpga_filename;
+}
+
+static void get_rbf_image_info(struct rbf_info *rbf, u16 *buffer)
+{
+ /*
+ * Magic ID starting at:
+ * -> 1st dword[15:0] in periph.rbf
+ * -> 2nd dword[15:0] in core.rbf
+ * Note: dword == 32 bits
+ */
+ u32 word_reading_max = 2;
+ u32 i;
+
+ for (i = 0; i < word_reading_max; i++) {
+ if (*(buffer + i) == FPGA_SOCFPGA_A10_RBF_UNENCRYPTED) {
+ rbf->security = unencrypted;
+ } else if (*(buffer + i) == FPGA_SOCFPGA_A10_RBF_ENCRYPTED) {
+ rbf->security = encrypted;
+ } else if (*(buffer + i + 1) ==
+ FPGA_SOCFPGA_A10_RBF_UNENCRYPTED) {
+ rbf->security = unencrypted;
+ } else if (*(buffer + i + 1) ==
+ FPGA_SOCFPGA_A10_RBF_ENCRYPTED) {
+ rbf->security = encrypted;
+ } else {
+ rbf->security = invalid;
+ continue;
+ }
+
+ /* PERIPH RBF(buffer + i + 1), CORE RBF(buffer + i + 2) */
+ if (*(buffer + i + 1) == FPGA_SOCFPGA_A10_RBF_PERIPH) {
+ rbf->section = periph_section;
+ break;
+ } else if (*(buffer + i + 1) == FPGA_SOCFPGA_A10_RBF_CORE) {
+ rbf->section = core_section;
+ break;
+ } else if (*(buffer + i + 2) == FPGA_SOCFPGA_A10_RBF_PERIPH) {
+ rbf->section = periph_section;
+ break;
+ } else if (*(buffer + i + 2) == FPGA_SOCFPGA_A10_RBF_CORE) {
+ rbf->section = core_section;
+ break;
+ }
+
+ rbf->section = unknown;
+ break;
+
+ WATCHDOG_RESET();
+ }
+}
+
+#ifdef CONFIG_FS_LOADER
+static int first_loading_rbf_to_buffer(struct udevice *dev,
+ struct fpga_loadfs_info *fpga_loadfs,
+ u32 *buffer, size_t *buffer_bsize)
+{
+ u32 *buffer_p = (u32 *)*buffer;
+ u32 *loadable = buffer_p;
+ size_t buffer_size = *buffer_bsize;
+ size_t fit_size;
+ int ret, i, count, confs_noffset, images_noffset, rbf_offset, rbf_size;
+ const char *fpga_node_name = NULL;
+ const char *uname = NULL;
+
+ /* Load image header into buffer */
+ ret = request_firmware_into_buf(dev,
+ fpga_loadfs->fpga_fsinfo->filename,
+ buffer_p, sizeof(struct image_header),
+ 0);
+ if (ret < 0) {
+ debug("FPGA: Failed to read image header from flash.\n");
+ return -ENOENT;
+ }
+
+ if (image_get_magic((struct image_header *)buffer_p) != FDT_MAGIC) {
+ debug("FPGA: No FDT magic was found.\n");
+ return -EBADF;
+ }
+
+ fit_size = fdt_totalsize(buffer_p);
+
+ if (fit_size > buffer_size) {
+ debug("FPGA: FIT image is larger than available buffer.\n");
+ debug("Please use FIT external data or increasing buffer.\n");
+ return -ENOMEM;
+ }
+
+ /* Load entire FIT into buffer */
+ ret = request_firmware_into_buf(dev,
+ fpga_loadfs->fpga_fsinfo->filename,
+ buffer_p, fit_size, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = fit_check_format(buffer_p);
+ if (!ret) {
+ debug("FPGA: No valid FIT image was found.\n");
+ return -EBADF;
+ }
+
+ confs_noffset = fdt_path_offset(buffer_p, FIT_CONFS_PATH);
+ images_noffset = fdt_path_offset(buffer_p, FIT_IMAGES_PATH);
+ if (confs_noffset < 0 || images_noffset < 0) {
+ debug("FPGA: No Configurations or images nodes were found.\n");
+ return -ENOENT;
+ }
+
+ /* Get default configuration unit name from default property */
+ confs_noffset = fit_conf_get_node(buffer_p, NULL);
+ if (confs_noffset < 0) {
+ debug("FPGA: No default configuration was found in config.\n");
+ return -ENOENT;
+ }
+
+ count = fit_conf_get_prop_node_count(buffer_p, confs_noffset,
+ FIT_FPGA_PROP);
+ if (count < 0) {
+ debug("FPGA: Invalid configuration format for FPGA node.\n");
+ return count;
+ }
+ debug("FPGA: FPGA node count: %d\n", count);
+
+ for (i = 0; i < count; i++) {
+ images_noffset = fit_conf_get_prop_node_index(buffer_p,
+ confs_noffset,
+ FIT_FPGA_PROP, i);
+ uname = fit_get_name(buffer_p, images_noffset, NULL);
+ if (uname) {
+ debug("FPGA: %s\n", uname);
+
+ if (strstr(uname, "fpga-periph") &&
+ (!is_fpgamgr_early_user_mode() ||
+ is_fpgamgr_user_mode())) {
+ fpga_node_name = uname;
+ printf("FPGA: Start to program ");
+ printf("peripheral/full bitstream ...\n");
+ break;
+ } else if (strstr(uname, "fpga-core") &&
+ (is_fpgamgr_early_user_mode() &&
+ !is_fpgamgr_user_mode())) {
+ fpga_node_name = uname;
+ printf("FPGA: Start to program core ");
+ printf("bitstream ...\n");
+ break;
+ }
+ }
+ WATCHDOG_RESET();
+ }
+
+ if (!fpga_node_name) {
+ debug("FPGA: No suitable bitstream was found, count: %d.\n", i);
+ return 1;
+ }
+
+ images_noffset = fit_image_get_node(buffer_p, fpga_node_name);
+ if (images_noffset < 0) {
+ debug("FPGA: No node '%s' was found in FIT.\n",
+ fpga_node_name);
+ return -ENOENT;
+ }
+
+ if (!fit_image_get_data_position(buffer_p, images_noffset,
+ &rbf_offset)) {
+ debug("FPGA: Data position was found.\n");
+ } else if (!fit_image_get_data_offset(buffer_p, images_noffset,
+ &rbf_offset)) {
+ /*
+ * For FIT with external data, figure out where
+ * the external images start. This is the base
+ * for the data-offset properties in each image.
+ */
+ rbf_offset += ((fdt_totalsize(buffer_p) + 3) & ~3);
+ debug("FPGA: Data offset was found.\n");
+ } else {
+ debug("FPGA: No data position/offset was found.\n");
+ return -ENOENT;
+ }
+
+ ret = fit_image_get_data_size(buffer_p, images_noffset, &rbf_size);
+ if (ret < 0) {
+ debug("FPGA: No data size was found (err=%d).\n", ret);
+ return -ENOENT;
+ }
+
+ if (gd->ram_size < rbf_size) {
+ debug("FPGA: Using default OCRAM buffer and size.\n");
+ } else {
+ ret = fit_image_get_load(buffer_p, images_noffset,
+ (ulong *)loadable);
+ if (ret < 0) {
+ buffer_p = (u32 *)DEFAULT_DDR_LOAD_ADDRESS;
+ debug("FPGA: No loadable was found.\n");
+ debug("FPGA: Using default DDR load address: 0x%x .\n",
+ DEFAULT_DDR_LOAD_ADDRESS);
+ } else {
+ buffer_p = (u32 *)*loadable;
+ debug("FPGA: Found loadable address = 0x%x.\n",
+ *loadable);
+ }
+
+ buffer_size = rbf_size;
+ }
+
+ debug("FPGA: External data: offset = 0x%x, size = 0x%x.\n",
+ rbf_offset, rbf_size);
+
+ fpga_loadfs->remaining = rbf_size;
+
+ /*
+ * Determine buffer size vs bitstream size, and calculating number of
+ * chunk by chunk transfer is required due to smaller buffer size
+ * compare to bitstream
+ */
+ if (rbf_size <= buffer_size) {
+ /* Loading whole bitstream into buffer */
+ buffer_size = rbf_size;
+ fpga_loadfs->remaining = 0;
+ } else {
+ fpga_loadfs->remaining -= buffer_size;
+ }
+
+ fpga_loadfs->offset = rbf_offset;
+ /* Loading bitstream into buffer */
+ ret = request_firmware_into_buf(dev,
+ fpga_loadfs->fpga_fsinfo->filename,
+ buffer_p, buffer_size,
+ fpga_loadfs->offset);
+ if (ret < 0) {
+ debug("FPGA: Failed to read bitstream from flash.\n");
+ return -ENOENT;
+ }
+
+ /* Getting info about bitstream types */
+ get_rbf_image_info(&fpga_loadfs->rbfinfo, (u16 *)buffer_p);
+
+ /* Update next reading bitstream offset */
+ fpga_loadfs->offset += buffer_size;
+
+ /* Update the final addr for bitstream */
+ *buffer = (u32)buffer_p;
+
+ /* Update the size of bitstream to be programmed into FPGA */
+ *buffer_bsize = buffer_size;
+
+ return 0;
+}
+
+static int subsequent_loading_rbf_to_buffer(struct udevice *dev,
+ struct fpga_loadfs_info *fpga_loadfs,
+ u32 *buffer, size_t *buffer_bsize)
+{
+ int ret = 0;
+ u32 *buffer_p = (u32 *)*buffer;
+
+ /* Read the bitstream chunk by chunk. */
+ if (fpga_loadfs->remaining > *buffer_bsize) {
+ fpga_loadfs->remaining -= *buffer_bsize;
+ } else {
+ *buffer_bsize = fpga_loadfs->remaining;
+ fpga_loadfs->remaining = 0;
+ }
+
+ ret = request_firmware_into_buf(dev,
+ fpga_loadfs->fpga_fsinfo->filename,
+ buffer_p, *buffer_bsize,
+ fpga_loadfs->offset);
+ if (ret < 0) {
+ debug("FPGA: Failed to read bitstream from flash.\n");
+ return -ENOENT;
+ }
+
+ /* Update next reading bitstream offset */
+ fpga_loadfs->offset += *buffer_bsize;
+
+ return 0;
+}
+
+int socfpga_loadfs(fpga_fs_info *fpga_fsinfo, const void *buf, size_t bsize,
+ u32 offset)
+{
+ struct fpga_loadfs_info fpga_loadfs;
+ struct udevice *dev;
+ int status, ret, size;
+ u32 buffer = (uintptr_t)buf;
+ size_t buffer_sizebytes = bsize;
+ size_t buffer_sizebytes_ori = bsize;
+ size_t total_sizeof_image = 0;
+ ofnode node;
+ const fdt32_t *phandle_p;
+ u32 phandle;
+
+ node = get_fpga_mgr_ofnode(ofnode_null());
+
+ if (ofnode_valid(node)) {
+ phandle_p = ofnode_get_property(node, "firmware-loader", &size);
+ if (!phandle_p) {
+ node = ofnode_path("/chosen");
+ if (!ofnode_valid(node)) {
+ debug("FPGA: /chosen node was not found.\n");
+ return -ENOENT;
+ }
+
+ phandle_p = ofnode_get_property(node, "firmware-loader",
+ &size);
+ if (!phandle_p) {
+ debug("FPGA: firmware-loader property was not");
+ debug(" found.\n");
+ return -ENOENT;
+ }
+ }
+ } else {
+ debug("FPGA: FPGA manager node was not found.\n");
+ return -ENOENT;
+ }
+
+ phandle = fdt32_to_cpu(*phandle_p);
+ ret = uclass_get_device_by_phandle_id(UCLASS_FS_FIRMWARE_LOADER,
+ phandle, &dev);
+ if (ret)
+ return ret;
+
+ memset(&fpga_loadfs, 0, sizeof(fpga_loadfs));
+
+ fpga_loadfs.fpga_fsinfo = fpga_fsinfo;
+ fpga_loadfs.offset = offset;
+
+ printf("FPGA: Checking FPGA configuration setting ...\n");
+
+ /*
+ * Note: Both buffer and buffer_sizebytes values can be altered by
+ * function below.
+ */
+ ret = first_loading_rbf_to_buffer(dev, &fpga_loadfs, &buffer,
+ &buffer_sizebytes);
+ if (ret == 1) {
+ printf("FPGA: Skipping configuration ...\n");
+ return 0;
+ } else if (ret) {
+ return ret;
+ }
+
+ if (fpga_loadfs.rbfinfo.section == core_section &&
+ !(is_fpgamgr_early_user_mode() && !is_fpgamgr_user_mode())) {
+ debug("FPGA : Must be in Early Release mode to program ");
+ debug("core bitstream.\n");
+ return -EPERM;
+ }
+
+ /* Disable all signals from HPS peripheral controller to FPGA */
+ writel(0, &system_manager_base->fpgaintf_en_global);
+
+ /* Disable all axi bridges (hps2fpga, lwhps2fpga & fpga2hps) */
+ socfpga_bridges_reset();
+
+ if (fpga_loadfs.rbfinfo.section == periph_section) {
+ /* Initialize the FPGA Manager */
+ status = fpgamgr_program_init((u32 *)buffer, buffer_sizebytes);
+ if (status) {
+ debug("FPGA: Init with peripheral bitstream failed.\n");
+ return -EPERM;
+ }
+ }
+
+ /* Transfer bitstream to FPGA Manager */
+ fpgamgr_program_write((void *)buffer, buffer_sizebytes);
+
+ total_sizeof_image += buffer_sizebytes;
+
+ while (fpga_loadfs.remaining) {
+ ret = subsequent_loading_rbf_to_buffer(dev,
+ &fpga_loadfs,
+ &buffer,
+ &buffer_sizebytes_ori);
+
+ if (ret)
+ return ret;
+
+ /* Transfer data to FPGA Manager */
+ fpgamgr_program_write((void *)buffer,
+ buffer_sizebytes_ori);
+
+ total_sizeof_image += buffer_sizebytes_ori;
+
+ WATCHDOG_RESET();
+ }
+
+ if (fpga_loadfs.rbfinfo.section == periph_section) {
+ if (fpgamgr_wait_early_user_mode() != -ETIMEDOUT) {
+ config_pins(gd->fdt_blob, "shared");
+ puts("FPGA: Early Release Succeeded.\n");
+ } else {
+ debug("FPGA: Failed to see Early Release.\n");
+ return -EIO;
+ }
+
+ /* For monolithic bitstream */
+ if (is_fpgamgr_user_mode()) {
+ /* Ensure the FPGA entering config done */
+ status = fpgamgr_program_finish();
+ if (status)
+ return status;
+
+ config_pins(gd->fdt_blob, "fpga");
+ puts("FPGA: Enter user mode.\n");
+ }
+ } else if (fpga_loadfs.rbfinfo.section == core_section) {
+ /* Ensure the FPGA entering config done */
+ status = fpgamgr_program_finish();
+ if (status)
+ return status;
+
+ config_pins(gd->fdt_blob, "fpga");
+ puts("FPGA: Enter user mode.\n");
+ } else {
+ debug("FPGA: Config Error: Unsupported bitstream type.\n");
+ return -ENOEXEC;
+ }
+
+ return (int)total_sizeof_image;
+}
+
+void fpgamgr_program(const void *buf, size_t bsize, u32 offset)
+{
+ fpga_fs_info fpga_fsinfo;
+
+ fpga_fsinfo.filename = get_fpga_filename();
+
+ if (fpga_fsinfo.filename)
+ socfpga_loadfs(&fpga_fsinfo, buf, bsize, offset);
+}
+#endif
+
+/* This function is used to load the core bitstream from the OCRAM. */
int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
{
- int status;
+ unsigned long status;
+ struct rbf_info rbfinfo;
+
+ memset(&rbfinfo, 0, sizeof(rbfinfo));
/* Disable all signals from hps peripheral controller to fpga */
writel(0, &system_manager_base->fpgaintf_en_global);
/* Disable all axi bridge (hps2fpga, lwhps2fpga & fpga2hps) */
socfpga_bridges_reset();
- /* Initialize the FPGA Manager */
- status = fpgamgr_program_init((u32 *)rbf_data, rbf_size);
- if (status)
- return status;
+ /* Getting info about bitstream types */
+ get_rbf_image_info(&rbfinfo, (u16 *)rbf_data);
+
+ if (rbfinfo.section == periph_section) {
+ /* Initialize the FPGA Manager */
+ status = fpgamgr_program_init((u32 *)rbf_data, rbf_size);
+ if (status)
+ return status;
+ }
- /* Write the RBF data to FPGA Manager */
+ if (rbfinfo.section == core_section &&
+ !(is_fpgamgr_early_user_mode() && !is_fpgamgr_user_mode())) {
+ debug("FPGA : Must be in early release mode to program ");
+ debug("core bitstream.\n");
+ return -EPERM;
+ }
+
+ /* Write the bitstream to FPGA Manager */
fpgamgr_program_write(rbf_data, rbf_size);
- return fpgamgr_program_finish();
+ status = fpgamgr_program_finish();
+ if (status) {
+ config_pins(gd->fdt_blob, "fpga");
+ puts("FPGA: Enter user mode.\n");
+ }
+
+ return status;
}
git.openpandora.org / pandora-u-boot.git / commitdiff