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embeddedsw/mcap/linux/mcap_lib.c

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mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
/******************************************************************************
mcap: linux: Update copyright This patch updates the copyright info. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:54:52 +05:30
* Copyright (C) 2014-2015 Xilinx, Inc. All rights reserved.
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
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*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file mcap_lib.c
* MCAP Interface Library functions
*
******************************************************************************/
#include "mcap_lib.h"
/* Library Specific Definitions */
#define MCAP_VENDOR_ID 0x10EE
#define MCAP_LOOP_COUNT 1000000
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
#define MCAP_SYNC_DWORD 0xFFFFFFFF
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
#define MCAP_SYNC_BYTE0 ((MCAP_SYNC_DWORD & 0xFF000000) >> 24)
#define MCAP_SYNC_BYTE1 ((MCAP_SYNC_DWORD & 0x00FF0000) >> 16)
#define MCAP_SYNC_BYTE2 ((MCAP_SYNC_DWORD & 0x0000FF00) >> 8)
#define MCAP_SYNC_BYTE3 ((MCAP_SYNC_DWORD & 0x000000FF) >> 0)
#define MCAP_RBT_FILE ".rbt"
#define MCAP_BIT_FILE ".bit"
#define MCAP_BIN_FILE ".bin"
static char *MCapFindTypeofFile(const char *s1, const char *s2)
{
size_t l1, l2;
l2 = strlen(s2);
if (!l2)
return (char *)s1;
l1 = strlen(s1);
while (l1 >= l2) {
l1--;
if (!strncasecmp(s1, s2, l2))
return (char *)s1;
s1++;
}
return NULL;
}
static u32 MCapProcessRBT(FILE *fptr, u32 *buf)
{
char *raw = NULL;
int i, read;
size_t linelen;
u32 count = 0, len = 0, result = 0;
while ((read = getline(&raw, &linelen, fptr)) != -1) {
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
if (raw[0] != '1' && raw[1] != '0')
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
continue;
for (i = 0; i < read - 1; i++) {
if (raw[i] == '1' || raw[i] == '0') {
result = (result << 1) | (raw[i] - 0x30);
count++;
if (count == 32) {
*buf++ = result;
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
len ++;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
result = count = 0;
break;
}
}
}
}
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
return len;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
}
static u32 MCapProcessBIT(FILE *fptr, u32 *buf, int sz)
{
int err;
u8 value, len = 0;
/*
* .bit files are not guaranteed to be aligned with
* the bitstream sync word on a 32-bit boundary. So,
* we need to check every byte here.
*/
while ((err = fread(&value, 1, 1, fptr)) == 1) {
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
len++; if (value == MCAP_SYNC_BYTE0)
if ((err = fread(&value, 1, 1, fptr)) == 1) {
len++; if (value == MCAP_SYNC_BYTE1)
if ((err = fread(&value, 1, 1, fptr)) == 1) {
len++; if (value == MCAP_SYNC_BYTE2)
if ((err = fread(&value, 1, 1, fptr)) == 1) {
len++; if (value == MCAP_SYNC_BYTE3)
break;
}
}
}
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
}
if (err != 1 && !feof(fptr)) {
pr_err("Failed to Read BIT file\n");
return 0;
}
if (err != 1 && feof(fptr)) {
pr_err("Failed to find SYNC Word in BIT file\n");
return 0;
}
*buf++ = __bswap_32(MCAP_SYNC_DWORD);
while ((err = fread(buf, sz - len, 1, fptr)) == 1)
;
if (err != 1 && !feof(fptr)) {
pr_err("Failed to Read BIT file\n");
return 0;
}
mcap: linux: Modify Programfiles handling This patch fixes the issues with the program files(.rbt,.bit) handling. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:44:42 +05:30
return (sz - len)/4 + 1;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
}
static u32 MCapProcessBIN(FILE *fptr, u32 *buf, int sz)
{
int err;
err = fread(buf, sz, 1, fptr);
if (err != 1 && !feof(fptr)) {
pr_err("Failed to Read BIN file\n");
return 0;
}
return sz/4;
}
static int MCapDoBusWalk(struct mcap_dev *mdev)
{
struct pci_cap *c;
c = pci_find_cap(mdev->pdev, MCAP_EXT_CAP_ID, PCI_CAP_EXTENDED);
if (!c)
return -EMCAPBUSWALK;
mdev->reg_base = c->addr;
return 0;
}
static int MCapClearRequestByConfigure(struct mcap_dev *mdev, u32 *restore)
{
u32 set;
int loop = MCAP_LOOP_COUNT;
set = *restore = MCapRegRead(mdev, MCAP_CONTROL);
if (IsConfigureMCapReqSet(mdev)) {
/* Set 'Mode' and 'In Use by PCIe' bits */
set |= (MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK);
MCapRegWrite(mdev, MCAP_CONTROL, set);
do {
if (!(IsConfigureMCapReqSet(mdev)))
break;
} while (loop--);
if (!loop) {
pr_err("Failed to clear MCAP Request by config bit\n");
MCapRegWrite(mdev, MCAP_CONTROL, *restore);
return -EMCAPREQ;
}
}
pr_dbg("Request by Configure bit cleared!!\n");
return 0;
}
mcap: linux: Add check for bitstream completion This patch fixes the issue Done pin doesn't go high after programming the 2nd stage bit stream. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:49:40 +05:30
static int Checkforcompletion(struct mcap_dev *mdev)
{
unsigned long retry_count = 0;
u32 delay;
int sr, i;
sr = MCapRegRead(mdev, MCAP_STATUS);
while (!(sr & MCAP_STS_EOS_MASK)) {
usleep(2);
for (i=0 ; i < EMCAP_EOS_LOOP_COUNT; i++) {
MCapRegWrite(mdev, MCAP_DATA, EMCAP_NOOP_VAL);
}
sr = MCapRegRead(mdev, MCAP_STATUS);
retry_count++;
if (retry_count > EMCAP_EOS_RETRY_COUNT) {
pr_err("Error: The MCAP EOS bit did not assert after");
pr_err(" programming the specified programming file\n");
return -EMCAPREQ;
}
}
return 0;
}
mcap: linux: Add support for partial reconfiguration clear file This patch adds support for programming the partial Reconfiguration clear file. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:51:42 +05:30
static int MCapWritePartialBitStream(struct mcap_dev *mdev, u32 *data,
int len, u8 bswap)
{
u32 set, restore;
int err, count = 0, i;
if (!data || !len) {
pr_err("Invalid Arguments\n");
return -EMCAPWRITE;
}
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
if (IsErrSet(mdev) || IsRegReadComplete(mdev) ||
IsFifoOverflow(mdev)) {
pr_err("Failed to initialize configuring FPGA\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPWRITE;
}
/* Set 'Mode', 'In Use by PCIe' and 'Data Reg Protect' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_DATA_REG_PROT_MASK;
/* Clear 'Reset', 'Module Reset' and 'Register Read' bits */
set &= ~(MCAP_CTRL_RESET_MASK | MCAP_CTRL_MOD_RESET_MASK |
MCAP_CTRL_REG_READ_MASK | MCAP_CTRL_DESIGN_SWITCH_MASK);
MCapRegWrite(mdev, MCAP_CONTROL, set);
/* Write Data */
if (!bswap) {
for (count = 0; count < len; count++)
MCapRegWrite(mdev, MCAP_DATA, data[count]);
} else {
for (count = 0; count < len; count++)
MCapRegWrite(mdev, MCAP_DATA, __bswap_32(data[count]));
}
for (i = 0 ; i < EMCAP_EOS_LOOP_COUNT; i++) {
MCapRegWrite(mdev, MCAP_DATA, EMCAP_NOOP_VAL);
}
if (IsErrSet(mdev) || IsFifoOverflow(mdev)) {
pr_err("Failed to Write Bitstream\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
mcap: linux: Fix race condition while programming bitfiles During programming the bit files as per flow in case of errors need to do a full reset of mcap config space. This patch fixes this issue. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-28 11:26:21 +05:30
MCapFullReset(mdev);
mcap: linux: Add support for partial reconfiguration clear file This patch adds support for programming the partial Reconfiguration clear file. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:51:42 +05:30
return -EMCAPWRITE;
}
mcap: linux: Add support for multiple bitstreams This patch adds support for configuring a partial clear file followed by a partial bit file. (Ex: ./mcap -x 0x8038 -C partialclear.bit -p partial.bit) Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:35:37 +05:30
if (!mdev->is_multiplebit) {
pr_info("Info: A partial reconfiguration clear file (-C) was");
pr_info(" loaded without a partial reconfiguration file (-p)");
pr_info(" as result the MCAP Control register was not restored");
pr_info(" to its original value\n\r");
}
mcap: linux: Add support for partial reconfiguration clear file This patch adds support for programming the partial Reconfiguration clear file. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:51:42 +05:30
return 0;
}
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
static int MCapWriteBitStream(struct mcap_dev *mdev, u32 *data,
int len, u8 bswap)
{
u32 set, restore;
int err, count = 0;
if (!data || !len) {
pr_err("Invalid Arguments\n");
return -EMCAPWRITE;
}
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
if (IsErrSet(mdev) || IsRegReadComplete(mdev) ||
IsFifoOverflow(mdev)) {
pr_err("Failed to initialize configuring FPGA\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPWRITE;
}
mcap: linux: Add support for multiple bitstreams This patch adds support for configuring a partial clear file followed by a partial bit file. (Ex: ./mcap -x 0x8038 -C partialclear.bit -p partial.bit) Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:35:37 +05:30
if (!mdev->is_multiplebit) {
/* Set 'Mode', 'In Use by PCIe' and 'Data Reg Protect' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_DATA_REG_PROT_MASK;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
mcap: linux: Add support for multiple bitstreams This patch adds support for configuring a partial clear file followed by a partial bit file. (Ex: ./mcap -x 0x8038 -C partialclear.bit -p partial.bit) Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:35:37 +05:30
/* Clear 'Reset', 'Module Reset' and 'Register Read' bits */
set &= ~(MCAP_CTRL_RESET_MASK | MCAP_CTRL_MOD_RESET_MASK |
MCAP_CTRL_REG_READ_MASK | MCAP_CTRL_DESIGN_SWITCH_MASK);
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
mcap: linux: Add support for multiple bitstreams This patch adds support for configuring a partial clear file followed by a partial bit file. (Ex: ./mcap -x 0x8038 -C partialclear.bit -p partial.bit) Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:35:37 +05:30
MCapRegWrite(mdev, MCAP_CONTROL, set);
}
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
/* Write Data */
if (!bswap) {
for (count = 0; count < len; count++)
MCapRegWrite(mdev, MCAP_DATA, data[count]);
} else {
for (count = 0; count < len; count++)
MCapRegWrite(mdev, MCAP_DATA, __bswap_32(data[count]));
}
mcap: linux: Add check for bitstream completion This patch fixes the issue Done pin doesn't go high after programming the 2nd stage bit stream. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:49:40 +05:30
/* Check for Completion */
err = Checkforcompletion(mdev);
if (err)
return -EMCAPCFG;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
if (IsErrSet(mdev) || IsFifoOverflow(mdev)) {
pr_err("Failed to Write Bitstream\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
mcap: linux: Fix race condition while programming bitfiles During programming the bit files as per flow in case of errors need to do a full reset of mcap config space. This patch fixes this issue. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-28 11:26:21 +05:30
MCapFullReset(mdev);
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
return -EMCAPWRITE;
}
/* Enable PCIe BAR reads/writes in the PCIe hardblock */
restore |= MCAP_CTRL_DESIGN_SWITCH_MASK;
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return 0;
}
void MCapLibFree(struct mcap_dev *mdev)
{
if (mdev) {
pci_cleanup(mdev->pacc);
free(mdev);
}
}
struct mcap_dev *MCapLibInit(int device_id)
{
struct pci_dev *dev;
struct mcap_dev *mdev;
/* Allocate MCAP device */
mdev = malloc(sizeof(struct mcap_dev));
if (!mdev)
return NULL;
/* Get the pci_access structure */
mdev->pacc = pci_alloc();
mcap: linux: Add support for multiple bitstreams This patch adds support for configuring a partial clear file followed by a partial bit file. (Ex: ./mcap -x 0x8038 -C partialclear.bit -p partial.bit) Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:35:37 +05:30
mdev->is_multiplebit = 0;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
/* Initialize the PCI library */
pci_init(mdev->pacc);
/* Get the list of devices */
pci_scan_bus(mdev->pacc);
for (dev = mdev->pacc->devices; dev; dev = dev->next) {
/* Fill in header info we need */
pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES |
PCI_FILL_CLASS);
if (dev->vendor_id == MCAP_VENDOR_ID &&
dev->device_id == device_id) {
pr_info("Xilinx MCAP device found\n");
mdev->pdev = dev;
} else {
continue;
}
}
if (!mdev->pdev) {
pr_err("Xilinx MCAP device not found .. Exiting ...\n");
goto free_resources;
}
/* Get the MCAP Register base */
if (MCapDoBusWalk(mdev)) {
pr_err("Unable to get the Register Base\n");
goto free_resources;
}
return mdev;
free_resources:
MCapLibFree(mdev);
return NULL;
}
int MCapReset(struct mcap_dev *mdev)
{
u32 set, restore;
int err;
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
/* Set 'Mode', 'In Use by PCIe' and 'Reset' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_RESET_MASK;
MCapRegWrite(mdev, MCAP_CONTROL, set);
if (IsErrSet(mdev) || !(IsResetSet(mdev))) {
pr_err("Failed to Reset\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPRESET;
}
MCapRegWrite(mdev, MCAP_CONTROL, restore);
pr_info("Reset Done!!\n");
return 0;
}
int MCapModuleReset(struct mcap_dev *mdev)
{
u32 set, restore;
int err;
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
/* Set 'Mode', 'In Use by PCIe' and 'Module Reset' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_MOD_RESET_MASK;
MCapRegWrite(mdev, MCAP_CONTROL, set);
if (IsErrSet(mdev) || !(IsModuleResetSet(mdev))) {
pr_err("Failed to Reset Module\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPMODRESET;
}
MCapRegWrite(mdev, MCAP_CONTROL, restore);
pr_info("Module Reset Done!!\n");
return 0;
}
int MCapFullReset(struct mcap_dev *mdev)
{
u32 set, restore;
int err;
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
/* Set 'Mode', 'In Use by PCIe' and 'Module Reset' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_RESET_MASK | MCAP_CTRL_MOD_RESET_MASK;
MCapRegWrite(mdev, MCAP_CONTROL, set);
if (IsErrSet(mdev) || !(IsModuleResetSet(mdev)) ||
!(IsResetSet(mdev))) {
pr_err("Failed to Full Reset\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPFULLRESET;
}
MCapRegWrite(mdev, MCAP_CONTROL, restore);
pr_info("Full Reset Done!!\n");
return 0;
}
static int MCapReadDataRegisters(struct mcap_dev *mdev, u32 *data)
{
u32 set, restore, read_cnt;
int err;
if (!data) {
pr_err("Invalid Arguments\n");
return -EMCAPREAD;
}
err = MCapClearRequestByConfigure(mdev, &restore);
if (err)
return err;
/* Set 'Mode', 'In Use by PCIe' and 'Data Reg Protect' bits */
set = MCapRegRead(mdev, MCAP_CONTROL);
set |= MCAP_CTRL_MODE_MASK | MCAP_CTRL_IN_USE_MASK |
MCAP_CTRL_REG_READ_MASK;
/* Clear 'Reset', 'Module Reset' and 'Register Read' bits */
set &= ~(MCAP_CTRL_RESET_MASK | MCAP_CTRL_MOD_RESET_MASK);
MCapRegWrite(mdev, MCAP_CONTROL, set);
read_cnt = GetRegReadCount(mdev);
mcap: linux: Dump all registers option (-d) Returns "Failed Reading Registers" when -d option is used to dump all the registers, It should ignore the Data register if it's empty or Not set and should not return a failure in reading those registers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-04-21 11:36:49 +05:30
if (!(read_cnt) || !(IsRegReadComplete(mdev))) {
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return EMCAPREAD;
}
if (IsErrSet(mdev) || IsFifoOverflow(mdev)) {
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
pr_err("Read Register Set Configuration Failed\n");
MCapRegWrite(mdev, MCAP_CONTROL, restore);
return -EMCAPREAD;
}
switch (read_cnt) {
case 7: case 6: case 5: case 4:
data[3] = MCapRegRead(mdev, MCAP_READ_DATA_3);
/* Fall-through */
case 3:
data[2] = MCapRegRead(mdev, MCAP_READ_DATA_2);
/* Fall-through */
case 2:
data[1] = MCapRegRead(mdev, MCAP_READ_DATA_1);
/* Fall-through */
case 1:
data[0] = MCapRegRead(mdev, MCAP_READ_DATA_0);
break;
}
MCapRegWrite(mdev, MCAP_CONTROL, restore);
pr_dbg("Read Data Registers Complete!\n");
return 0;
}
void MCapDumpReadRegs(struct mcap_dev *mdev)
{
u32 data[4];
mcap: linux: Dump all registers option (-d) Returns "Failed Reading Registers" when -d option is used to dump all the registers, It should ignore the Data register if it's empty or Not set and should not return a failure in reading those registers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-04-21 11:36:49 +05:30
u32 status;
status = MCapReadDataRegisters(mdev, data);
if (status == EMCAPREAD)
return;
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
mcap: linux: Dump all registers option (-d) Returns "Failed Reading Registers" when -d option is used to dump all the registers, It should ignore the Data register if it's empty or Not set and should not return a failure in reading those registers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-04-21 11:36:49 +05:30
if (status) {
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
pr_err("Failed Reading Registers.. This may be");
mcap: linux: Dump all registers option (-d) Returns "Failed Reading Registers" when -d option is used to dump all the registers, It should ignore the Data register if it's empty or Not set and should not return a failure in reading those registers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-04-21 11:36:49 +05:30
pr_err(" due to inappropriate FPGA configuration.");
pr_err(" Make sure you downloaded the correct bitstream\n");
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
return;
}
pr_info("Register Read Data 0:\t0x%08x\n", data[0]);
pr_info("Register Read Data 1:\t0x%08x\n", data[1]);
pr_info("Register Read Data 2:\t0x%08x\n", data[2]);
pr_info("Register Read Data 3:\t0x%08x\n", data[3]);
}
void MCapDumpRegs(struct mcap_dev *mdev)
{
pr_info("Extended Capability:\t0x%08x\n",
MCapRegRead(mdev, MCAP_EXT_CAP_HEADER));
pr_info("Vendor Specific Header:\t0x%08x\n",
MCapRegRead(mdev, MCAP_VEND_SPEC_HEADER));
pr_info("FPGA JTAG ID:\t\t0x%08x\n",
MCapRegRead(mdev, MCAP_FPGA_JTAG_ID));
pr_info("FPGA Bit-Stream Version:0x%08x\n",
MCapRegRead(mdev, MCAP_FPGA_BIT_VERSION));
pr_info("Status:\t\t\t0x%08x\n",
MCapRegRead(mdev, MCAP_STATUS));
pr_info("Control:\t\t0x%08x\n",
MCapRegRead(mdev, MCAP_CONTROL));
pr_info("Data:\t\t\t0x%08x\n",
MCapRegRead(mdev, MCAP_DATA));
MCapDumpReadRegs(mdev);
}
mcap: linux: Add support for partial reconfiguration clear file This patch adds support for programming the partial Reconfiguration clear file. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:51:42 +05:30
int MCapConfigureFPGA(struct mcap_dev *mdev, char *file_path, u32 bitfile_type)
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
{
FILE *fptr;
u32 *data;
u32 binsz, wrdatasz;
int err = 0;
u8 bswap = 0;
/* Get the size */
fptr = fopen(file_path, "rb");
if (fptr == NULL)
return -EMCAPCFG;
fseek(fptr, 0L, SEEK_END);
binsz = ftell(fptr);
fseek(fptr, 0L, SEEK_SET);
/* Allocate the buffer */
data = malloc(binsz);
if (data == NULL)
return -EMCAPCFG;
/* Process files and Read the data */
if (MCapFindTypeofFile(file_path, MCAP_RBT_FILE)) {
/* Read the RBT file */
wrdatasz = MCapProcessRBT(fptr, data);
} else if (MCapFindTypeofFile(file_path, MCAP_BIT_FILE)) {
/* Read the BIT file */
wrdatasz = MCapProcessBIT(fptr, data, binsz);
bswap = 1;
} else if (MCapFindTypeofFile(file_path, MCAP_BIN_FILE)) {
/* Read the BIN file */
wrdatasz = MCapProcessBIN(fptr, data, binsz);
bswap = 1;
} else {
mcap: linux: Improve error info.. This patch updates the error information message in the driver so that it will error out with detailed info so that it will be clear to the users incase of path to bitstreams is incorrect. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
2015-11-18 15:50:06 +05:30
pr_err("Unknown File Format.. This may be");
pr_err(" due to .bit/.bin/.rbt files does not exist at the.");
pr_err(" specified location, Please cross check the");
pr_err(" path is correct or not\n");
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
goto free_resources;
}
/* Program FPGA */
mcap: linux: Add support for partial reconfiguration clear file This patch adds support for programming the partial Reconfiguration clear file. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2015-05-27 18:51:42 +05:30
if (bitfile_type == EMCAP_PARTIALCONFIG_FILE) {
err = MCapWritePartialBitStream(mdev, data, wrdatasz, bswap);
if (err)
return -EMCAPCFG;
pr_info("FPGA Partial Configuration Done!!\n");
} else if (bitfile_type == EMCAP_CONFIG_FILE) {
err = MCapWriteBitStream(mdev, data, wrdatasz, bswap);
if (err)
return -EMCAPCFG;
pr_info("FPGA Configuration Done!!\n");
}
mcap: Add MCAP Linux Library The MCAP interface enables an embedded microprocessor, such as MicroBlaze, to read and write the FPGA configuration memory. This library allows user to access the MCAP i/f. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Reviewed-by: Srikanth Vemula <svemula@xilinx.com>
2014-10-16 12:44:02 +05:30
free_resources:
if (data)
free(data);
fclose(fptr);
return err;
}
int MCapAccessConfigSpace(struct mcap_dev *mdev, int argc, char **argv)
{
unsigned long wrval, rdval;
int pos, access_type;
pos = (int) strtol(argv[4], NULL, 16);
access_type = tolower(argv[5][0]);
if (argc == 6) {
switch (access_type) {
case 'b':
rdval = pci_read_byte(mdev->pdev, pos);
break;
case 'h':
rdval = pci_read_word(mdev->pdev, pos);
break;
case 'w':
rdval = pci_read_long(mdev->pdev, pos);
break;
default:
return -EMCAPCFGACC;
}
pr_info("Read 0x%08lx @ 0x%x\n", rdval, pos);
}
if (argc > 6) {
wrval = strtoul(argv[6], 0, 0);
switch (access_type) {
case 'b':
pci_write_byte(mdev->pdev, pos, wrval);
break;
case 'h':
pci_write_word(mdev->pdev, pos, wrval);
break;
case 'w':
pci_write_long(mdev->pdev, pos, wrval);
break;
default:
return -EMCAPCFGACC;
}
pr_info("Written 0x%08lx @ 0x%x\n", wrval, pos);
}
return 0;
}
int MCapShowDevice(struct mcap_dev *mdev, int verbose)
{
char command[80];
u16 vendor_id, device_id;
vendor_id = mdev->pdev->vendor_id;
device_id = mdev->pdev->device_id;
if (verbose == 1)
sprintf(command, "lspci -vd %x:%x", vendor_id, device_id);
if (verbose >= 2)
sprintf(command, "lspci -vvd %x:%x", vendor_id, device_id);
if (!verbose)
sprintf(command, "lspci -d %x:%x", vendor_id, device_id);
return system(command);
}
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