d5d4261f35
The XLP on-chip devices have PCI configuration headers, but some of the devices need custom resource allocation code. - devices with no MEM/IO BARs with registers in PCIe extended reg space have to be handled in memory resource allocation - devices without INTPIN/INTLINE in PCI header can be supported by having these faked with a shadow register. - Some devices does not allow 8/16 bit access to the register space, he default bus space cannot be used for these. Subclass pci and override attach and resource allocation methods to take care of this. Remove earlier code which did this partially.
110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*-
|
|
* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
|
|
* reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* NETLOGIC_BSD */
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <mips/nlm/hal/mips-extns.h>
|
|
#include <mips/nlm/hal/haldefs.h>
|
|
#include <mips/nlm/hal/iomap.h>
|
|
#include <mips/nlm/hal/sys.h>
|
|
#include <mips/nlm/xlp.h>
|
|
|
|
uint32_t
|
|
xlp_get_cpu_frequency(int node, int core)
|
|
{
|
|
uint64_t sysbase = nlm_get_sys_regbase(node);
|
|
unsigned int pll_divf, pll_divr, dfs_div, ext_div;
|
|
unsigned int rstval, dfsval;
|
|
|
|
rstval = nlm_read_sys_reg(sysbase, SYS_POWER_ON_RESET_CFG);
|
|
dfsval = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIV_VALUE);
|
|
pll_divf = ((rstval >> 10) & 0x7f) + 1;
|
|
pll_divr = ((rstval >> 8) & 0x3) + 1;
|
|
if (!nlm_is_xlp8xx_ax())
|
|
ext_div = ((rstval >> 30) & 0x3) + 1;
|
|
else
|
|
ext_div = 1;
|
|
dfs_div = ((dfsval >> (core << 2)) & 0xf) + 1;
|
|
|
|
return ((800000000ULL * pll_divf)/(3 * pll_divr * ext_div * dfs_div));
|
|
}
|
|
|
|
static u_int
|
|
nlm_get_device_frequency(uint64_t sysbase, int devtype)
|
|
{
|
|
uint32_t pllctrl, dfsdiv, spf, spr, div_val;
|
|
int extra_div;
|
|
|
|
pllctrl = nlm_read_sys_reg(sysbase, SYS_PLL_CTRL);
|
|
if (devtype <= 7)
|
|
div_val = nlm_read_sys_reg(sysbase, SYS_DFS_DIV_VALUE0);
|
|
else {
|
|
devtype -= 8;
|
|
div_val = nlm_read_sys_reg(sysbase, SYS_DFS_DIV_VALUE1);
|
|
}
|
|
dfsdiv = ((div_val >> (devtype << 2)) & 0xf) + 1;
|
|
spf = (pllctrl >> 3 & 0x7f) + 1;
|
|
spr = (pllctrl >> 1 & 0x03) + 1;
|
|
extra_div = nlm_is_xlp8xx_ax() ? 1 : 2;
|
|
|
|
return ((400 * spf) / (3 * extra_div * spr * dfsdiv));
|
|
}
|
|
|
|
int
|
|
nlm_set_device_frequency(int node, int devtype, int frequency)
|
|
{
|
|
uint64_t sysbase;
|
|
u_int cur_freq;
|
|
int dec_div;
|
|
|
|
sysbase = nlm_get_sys_regbase(node);
|
|
cur_freq = nlm_get_device_frequency(sysbase, devtype);
|
|
if (cur_freq < (frequency - 5))
|
|
dec_div = 1;
|
|
else
|
|
dec_div = 0;
|
|
|
|
for(;;) {
|
|
if ((cur_freq >= (frequency - 5)) && (cur_freq <= frequency))
|
|
break;
|
|
if (dec_div)
|
|
nlm_write_sys_reg(sysbase, SYS_DFS_DIV_DEC_CTRL,
|
|
(1 << devtype));
|
|
else
|
|
nlm_write_sys_reg(sysbase, SYS_DFS_DIV_INC_CTRL,
|
|
(1 << devtype));
|
|
cur_freq = nlm_get_device_frequency(sysbase, devtype);
|
|
}
|
|
return (nlm_get_device_frequency(sysbase, devtype));
|
|
}
|