19d3b47b92
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* NETLOGIC_BSD */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <mips/nlm/hal/mips-extns.h>
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#include <mips/nlm/hal/haldefs.h>
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#include <mips/nlm/hal/iomap.h>
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#include <mips/nlm/hal/sys.h>
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#include <mips/nlm/xlp.h>
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uint32_t
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xlp_get_cpu_frequency(int node, int core)
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{
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uint64_t sysbase = nlm_get_sys_regbase(node);
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unsigned int pll_divf, pll_divr, dfs_div, ext_div;
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unsigned int rstval, dfsval;
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rstval = nlm_read_sys_reg(sysbase, SYS_POWER_ON_RESET_CFG);
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dfsval = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIV_VALUE);
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pll_divf = ((rstval >> 10) & 0x7f) + 1;
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pll_divr = ((rstval >> 8) & 0x3) + 1;
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if (!nlm_is_xlp8xx_ax())
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ext_div = ((rstval >> 30) & 0x3) + 1;
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else
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ext_div = 1;
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dfs_div = ((dfsval >> (core << 2)) & 0xf) + 1;
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return ((800000000ULL * pll_divf)/(3 * pll_divr * ext_div * dfs_div));
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}
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static u_int
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nlm_get_device_frequency(uint64_t sysbase, int devtype)
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{
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uint32_t pllctrl, dfsdiv, spf, spr, div_val;
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int extra_div;
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pllctrl = nlm_read_sys_reg(sysbase, SYS_PLL_CTRL);
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if (devtype <= 7)
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div_val = nlm_read_sys_reg(sysbase, SYS_DFS_DIV_VALUE0);
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else {
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devtype -= 8;
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div_val = nlm_read_sys_reg(sysbase, SYS_DFS_DIV_VALUE1);
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}
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dfsdiv = ((div_val >> (devtype << 2)) & 0xf) + 1;
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spf = (pllctrl >> 3 & 0x7f) + 1;
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spr = (pllctrl >> 1 & 0x03) + 1;
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if (devtype == DFS_DEVICE_NAE && !nlm_is_xlp8xx_ax())
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extra_div = 2;
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else
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extra_div = 1;
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return ((400 * spf) / (3 * extra_div * spr * dfsdiv));
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}
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int
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nlm_set_device_frequency(int node, int devtype, int frequency)
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{
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uint64_t sysbase;
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u_int cur_freq;
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int dec_div;
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sysbase = nlm_get_sys_regbase(node);
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cur_freq = nlm_get_device_frequency(sysbase, devtype);
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if (cur_freq < (frequency - 5))
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dec_div = 1;
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else
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dec_div = 0;
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for(;;) {
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if ((cur_freq >= (frequency - 5)) && (cur_freq <= frequency))
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break;
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if (dec_div)
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nlm_write_sys_reg(sysbase, SYS_DFS_DIV_DEC_CTRL,
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(1 << devtype));
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else
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nlm_write_sys_reg(sysbase, SYS_DFS_DIV_INC_CTRL,
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(1 << devtype));
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cur_freq = nlm_get_device_frequency(sysbase, devtype);
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}
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return (nlm_get_device_frequency(sysbase, devtype));
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}
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