summaryrefslogtreecommitdiff
path: root/cvmx-spi.c
diff options
context:
space:
mode:
Diffstat (limited to 'cvmx-spi.c')
-rw-r--r--cvmx-spi.c102
1 files changed, 61 insertions, 41 deletions
diff --git a/cvmx-spi.c b/cvmx-spi.c
index bb0426bbdacc..e43d55d6f6ba 100644
--- a/cvmx-spi.c
+++ b/cvmx-spi.c
@@ -1,39 +1,40 @@
/***********************license start***************
- * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
- * reserved.
+ * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
+ * reserved.
*
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
*
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * * Neither the name of Cavium Networks nor the names of
- * its contributors may be used to endorse or promote products
- * derived from this software without specific prior written
- * permission.
- *
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
- * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
- * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
- * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
- * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
- * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
- * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
- * POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
- * OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
- *
- *
- * For any questions regarding licensing please contact marketing@caviumnetworks.com
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
*
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+
+ * * Neither the name of Cavium Networks nor the names of
+ * its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written
+ * permission.
+
+ * This Software, including technical data, may be subject to U.S. export control
+ * laws, including the U.S. Export Administration Act and its associated
+ * regulations, and may be subject to export or import regulations in other
+ * countries.
+
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
+ * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
+ * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
+ * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
+ * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
@@ -41,19 +42,33 @@
+
/**
* @file
*
* Support library for the SPI
*
- * <hr>$Revision: 41586 $<hr>
+ * <hr>$Revision: 49448 $<hr>
*/
-#include "cvmx-config.h"
+#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
+#include <linux/module.h>
+#include <asm/octeon/cvmx.h>
+#include <asm/octeon/cvmx-config.h>
+#include <asm/octeon/cvmx-spxx-defs.h>
+#include <asm/octeon/cvmx-stxx-defs.h>
+#include <asm/octeon/cvmx-srxx-defs.h>
+#include <asm/octeon/cvmx-pko.h>
+#include <asm/octeon/cvmx-spi.h>
+#include <asm/octeon/cvmx-clock.h>
+#else
#include "cvmx.h"
-#include "cvmx-mio.h"
+#include "cvmx-config.h"
+#include "cvmx-sysinfo.h"
#include "cvmx-pko.h"
#include "cvmx-spi.h"
-#include "cvmx-sysinfo.h"
+#include "cvmx-clock.h"
+#endif
+
#define INVOKE_CB(function_p, args...) \
do { \
@@ -165,7 +180,9 @@ int cvmx_spi_restart_interface(int interface, cvmx_spi_mode_t mode, int timeout)
if (!(OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX)))
return res;
+#if CVMX_ENABLE_DEBUG_PRINTS
cvmx_dprintf ("SPI%d: Restart %s\n", interface, modes[mode]);
+#endif
// Callback to perform SPI4 reset
INVOKE_CB(cvmx_spi_callbacks.reset_cb, interface,mode);
@@ -187,6 +204,9 @@ int cvmx_spi_restart_interface(int interface, cvmx_spi_mode_t mode, int timeout)
return res;
}
+#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
+EXPORT_SYMBOL(cvmx_spi_restart_interface);
+#endif
/**
* Callback to perform SPI4 reset
@@ -208,7 +228,7 @@ int cvmx_spi_reset_cb(int interface, cvmx_spi_mode_t mode)
cvmx_stxx_int_msk_t stxx_int_msk;
cvmx_spxx_trn4_ctl_t spxx_trn4_ctl;
int index;
- uint64_t MS = cvmx_sysinfo_get()->cpu_clock_hz / 1000;
+ uint64_t MS = cvmx_clock_get_rate(CVMX_CLOCK_CORE) / 1000;
/* Disable SPI error events while we run BIST */
spxx_int_msk.u64 = cvmx_read_csr(CVMX_SPXX_INT_MSK(interface));
@@ -258,7 +278,7 @@ int cvmx_spi_reset_cb(int interface, cvmx_spi_mode_t mode)
spxx_clk_ctl.s.clkdly = 0x10;
spxx_clk_ctl.s.runbist = 0;
spxx_clk_ctl.s.statdrv = 0;
- spxx_clk_ctl.s.statrcv = 1; /* This should always be on the opposite edge as statdrv */
+ spxx_clk_ctl.s.statrcv = 1; /* This should always be on the opposite edge as statdrv */
spxx_clk_ctl.s.sndtrn = 0;
spxx_clk_ctl.s.drptrn = 0;
spxx_clk_ctl.s.rcvtrn = 0;
@@ -418,7 +438,7 @@ int cvmx_spi_clock_detect_cb(int interface, cvmx_spi_mode_t mode, int timeout)
int clock_transitions;
cvmx_spxx_clk_stat_t stat;
uint64_t timeout_time;
- uint64_t MS = cvmx_sysinfo_get()->cpu_clock_hz / 1000;
+ uint64_t MS = cvmx_clock_get_rate(CVMX_CLOCK_CORE) / 1000;
/* Regardless of operating mode, both Tx and Rx clocks must be present
for the SPI interface to operate. */
@@ -489,7 +509,7 @@ int cvmx_spi_training_cb(int interface, cvmx_spi_mode_t mode, int timeout)
{
cvmx_spxx_trn4_ctl_t spxx_trn4_ctl;
cvmx_spxx_clk_stat_t stat;
- uint64_t MS = cvmx_sysinfo_get()->cpu_clock_hz / 1000;
+ uint64_t MS = cvmx_clock_get_rate(CVMX_CLOCK_CORE) / 1000;
uint64_t timeout_time = cvmx_get_cycle() + 1000ull * MS * timeout;
int rx_training_needed;
@@ -500,7 +520,7 @@ int cvmx_spi_training_cb(int interface, cvmx_spi_mode_t mode, int timeout)
spxx_clk_ctl.s.clkdly = 0x10;
spxx_clk_ctl.s.runbist = 0;
spxx_clk_ctl.s.statdrv = 0;
- spxx_clk_ctl.s.statrcv = 1; /* This should always be on the opposite edge as statdrv */
+ spxx_clk_ctl.s.statrcv = 1; /* This should always be on the opposite edge as statdrv */
spxx_clk_ctl.s.sndtrn = 1;
spxx_clk_ctl.s.drptrn = 1;
spxx_clk_ctl.s.rcvtrn = 1;
@@ -552,7 +572,7 @@ int cvmx_spi_training_cb(int interface, cvmx_spi_mode_t mode, int timeout)
*/
int cvmx_spi_calendar_sync_cb(int interface, cvmx_spi_mode_t mode, int timeout)
{
- uint64_t MS = cvmx_sysinfo_get()->cpu_clock_hz / 1000;
+ uint64_t MS = cvmx_clock_get_rate(CVMX_CLOCK_CORE) / 1000;
if (mode & CVMX_SPI_MODE_RX_HALFPLEX) {
// SRX0 interface should be good, send calendar data
cvmx_srxx_com_ctl_t srxx_com_ctl;
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 03:41:58 +0000