u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c

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/*
* Copyright 2009-2012 Freescale Semiconductor, Inc.
*
* This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
* arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
* cpu specific common code for 85xx/86xx processors.
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/mp.h>
#include <asm/fsl_serdes.h>
#include <phy.h>
#include <hwconfig.h>
#define FSL_MAX_NUM_USB_CTRLS 2
#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
static int ft_del_cpuhandle(void *blob, int cpuhandle)
{
int off, ret = -FDT_ERR_NOTFOUND;
/* if we find a match, we'll delete at it which point the offsets are
* invalid so we start over from the beginning
*/
off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
&cpuhandle, 4);
while (off != -FDT_ERR_NOTFOUND) {
fdt_delprop(blob, off, "cpu-handle");
ret = 1;
off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
&cpuhandle, 4);
}
return ret;
}
void ft_fixup_num_cores(void *blob) {
int off, num_cores, del_cores;
del_cores = 0;
num_cores = cpu_numcores();
off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
while (off != -FDT_ERR_NOTFOUND) {
u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
if (!is_core_valid(*reg) || is_core_disabled(*reg)) {
int ph = fdt_get_phandle(blob, off);
/* Delete the cpu node once there are no cpu handles */
if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
fdt_del_node(blob, off);
del_cores++;
}
/* either we deleted some cpu handles or the cpu node
* so we reset the offset back to the start since we
* can't trust the offsets anymore
*/
off = -1;
}
off = fdt_node_offset_by_prop_value(blob, off,
"device_type", "cpu", 4);
}
debug ("%x core system found\n", num_cores);
debug ("deleted %d extra core entry entries from device tree\n",
del_cores);
}
#endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
#if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB)
static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
const char *phy_type, int start_offset)
{
const char *compat_dr = "fsl-usb2-dr";
const char *compat_mph = "fsl-usb2-mph";
const char *prop_mode = "dr_mode";
const char *prop_type = "phy_type";
const char *node_type = NULL;
int node_offset;
int err;
node_offset = fdt_node_offset_by_compatible(blob,
start_offset, compat_mph);
if (node_offset < 0) {
node_offset = fdt_node_offset_by_compatible(blob,
start_offset, compat_dr);
if (node_offset < 0) {
printf("WARNING: could not find compatible"
" node %s or %s: %s.\n", compat_mph,
compat_dr, fdt_strerror(node_offset));
return -1;
} else
node_type = compat_dr;
} else
node_type = compat_mph;
if (mode) {
err = fdt_setprop(blob, node_offset, prop_mode, mode,
strlen(mode) + 1);
if (err < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop_mode, node_type, fdt_strerror(err));
}
if (phy_type) {
err = fdt_setprop(blob, node_offset, prop_type, phy_type,
strlen(phy_type) + 1);
if (err < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop_type, node_type, fdt_strerror(err));
}
return node_offset;
}
void fdt_fixup_dr_usb(void *blob, bd_t *bd)
{
const char *modes[] = { "host", "peripheral", "otg" };
const char *phys[] = { "ulpi", "utmi" };
const char *mode = NULL;
const char *phy_type = NULL;
char usb1_defined = 0;
int usb_mode_off = -1;
int usb_phy_off = -1;
char str[5];
int i, j;
for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) {
int mode_idx = -1, phy_idx = -1;
snprintf(str, 5, "%s%d", "usb", i);
if (hwconfig(str)) {
for (j = 0; j < ARRAY_SIZE(modes); j++) {
if (hwconfig_subarg_cmp(str, "dr_mode",
modes[j])) {
mode_idx = j;
break;
}
}
for (j = 0; j < ARRAY_SIZE(phys); j++) {
if (hwconfig_subarg_cmp(str, "phy_type",
phys[j])) {
phy_idx = j;
break;
}
}
if (mode_idx >= 0) {
usb_mode_off = fdt_fixup_usb_mode_phy_type(blob,
modes[mode_idx], NULL, usb_mode_off);
if (usb_mode_off < 0)
return;
}
if (phy_idx >= 0) {
usb_phy_off = fdt_fixup_usb_mode_phy_type(blob,
NULL, phys[phy_idx], usb_phy_off);
if (usb_phy_off < 0)
return;
}
if (!strcmp(str, "usb1"))
usb1_defined = 1;
if (mode_idx < 0 && phy_idx < 0)
printf("WARNING: invalid phy or mode\n");
}
}
if (!usb1_defined) {
int usb_off = -1;
mode = getenv("usb_dr_mode");
phy_type = getenv("usb_phy_type");
if (!mode && !phy_type)
return;
fdt_fixup_usb_mode_phy_type(blob, mode, phy_type, usb_off);
}
}
#endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */
/*
* update crypto node properties to a specified revision of the SEC
* called with sec_rev == 0 if not on an E processor
*/
#if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */
void fdt_fixup_crypto_node(void *blob, int sec_rev)
{
const struct sec_rev_prop {
u32 sec_rev;
u32 num_channels;
u32 channel_fifo_len;
u32 exec_units_mask;
u32 descriptor_types_mask;
} sec_rev_prop_list [] = {
{ 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
{ 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
{ 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
{ 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
{ 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
{ 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */
{ 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */
};
char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
sizeof("fsl,secX.Y")];
int crypto_node, sec_idx, err;
char *p;
u32 val;
/* locate crypto node based on lowest common compatible */
crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
if (crypto_node == -FDT_ERR_NOTFOUND)
return;
/* delete it if not on an E-processor */
if (crypto_node > 0 && !sec_rev) {
fdt_del_node(blob, crypto_node);
return;
}
/* else we got called for possible uprev */
for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
break;
if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
puts("warning: unknown SEC revision number\n");
return;
}
val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
if (err < 0)
printf("WARNING: could not set crypto property: %s\n",
fdt_strerror(err));
val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
if (err < 0)
printf("WARNING: could not set crypto property: %s\n",
fdt_strerror(err));
val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
if (err < 0)
printf("WARNING: could not set crypto property: %s\n",
fdt_strerror(err));
val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
if (err < 0)
printf("WARNING: could not set crypto property: %s\n",
fdt_strerror(err));
val = 0;
while (sec_idx >= 0) {
p = compat_strlist + val;
val += sprintf(p, "fsl,sec%d.%d",
(sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
sec_idx--;
}
err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
if (err < 0)
printf("WARNING: could not set crypto property: %s\n",
fdt_strerror(err));
}
#elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */
void fdt_fixup_crypto_node(void *blob, int sec_rev)
{
if (!sec_rev)
fdt_del_node_and_alias(blob, "crypto");
}
#endif
int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
{
return fdt_setprop_string(blob, offset, "phy-connection-type",
phy_string_for_interface(phyc));
}
#ifdef CONFIG_SYS_SRIO
static inline void ft_disable_srio_port(void *blob, int srio_off, int port)
{
int off = fdt_node_offset_by_prop_value(blob, srio_off,
"cell-index", &port, 4);
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for fsl,srio "
"port %d: %s\n", port, fdt_strerror(off));
}
}
static inline void ft_disable_rman(void *blob)
{
int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman");
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for fsl,rman %s\n",
fdt_strerror(off));
}
}
static inline void ft_disable_rmu(void *blob)
{
int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu");
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for "
"fsl,srio-rmu %s\n", fdt_strerror(off));
}
}
void ft_srio_setup(void *blob)
{
int srio1_used = 0, srio2_used = 0;
int srio_off;
/* search for srio node, if doesn't exist just return - nothing todo */
srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio");
if (srio_off < 0)
return ;
#ifdef CONFIG_SRIO1
if (is_serdes_configured(SRIO1))
srio1_used = 1;
#endif
#ifdef CONFIG_SRIO2
if (is_serdes_configured(SRIO2))
srio2_used = 1;
#endif
/* mark port1 disabled */
if (!srio1_used)
ft_disable_srio_port(blob, srio_off, 1);
/* mark port2 disabled */
if (!srio2_used)
ft_disable_srio_port(blob, srio_off, 2);
/* if both ports not used, disable controller, rmu and rman */
if (!srio1_used && !srio2_used) {
fdt_setprop_string(blob, srio_off, "status", "disabled");
ft_disable_rman(blob);
ft_disable_rmu(blob);
}
}
#endif