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u-boot/drivers/net/mcffec.c
Tom Rini 65cc0e2a65 global: Move remaining CONFIG_SYS_* to CFG_SYS_* 
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 16:06:08 -05:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2007 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*
* Conversion to DM
* (C) 2019 Angelo Dureghello <angelo.dureghello@timesys.com>
*/
#include <common.h>
#include <env.h>
#include <hang.h>
#include <malloc.h>
#include <command.h>
#include <net.h>
#include <miiphy.h>
#include <asm/fec.h>
#include <asm/global_data.h>
#include <asm/immap.h>
#include <linux/delay.h>
#include <linux/mii.h>
#undef ET_DEBUG
#undef MII_DEBUG
/* Ethernet Transmit and Receive Buffers */
#define DBUF_LENGTH 1520
#define TX_BUF_CNT 2
#define PKT_MAXBUF_SIZE 1518
#define PKT_MAXBLR_SIZE 1520
#define LAST_PKTBUFSRX PKTBUFSRX - 1
#define BD_ENET_RX_W_E (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
#define BD_ENET_TX_RDY_LST (BD_ENET_TX_READY | BD_ENET_TX_LAST)
DECLARE_GLOBAL_DATA_PTR;
static void init_eth_info(struct fec_info_s *info)
{
#ifdef CFG_SYS_FEC_BUF_USE_SRAM
static u32 tmp;
if (info->index == 0)
tmp = CFG_SYS_INIT_RAM_ADDR + 0x1000;
else
info->rxbd = (cbd_t *)DBUF_LENGTH;
/* setup Receive and Transmit buffer descriptor */
info->rxbd = (cbd_t *)((u32)info->rxbd + tmp);
tmp = (u32)info->rxbd;
info->txbd =
(cbd_t *)((u32)info->txbd + tmp +
(PKTBUFSRX * sizeof(cbd_t)));
tmp = (u32)info->txbd;
info->txbuf =
(char *)((u32)info->txbuf + tmp +
(CFG_SYS_TX_ETH_BUFFER * sizeof(cbd_t)));
tmp = (u32)info->txbuf;
#else
info->rxbd =
(cbd_t *)memalign(CONFIG_SYS_CACHELINE_SIZE,
(PKTBUFSRX * sizeof(cbd_t)));
info->txbd =
(cbd_t *)memalign(CONFIG_SYS_CACHELINE_SIZE,
(TX_BUF_CNT * sizeof(cbd_t)));
info->txbuf =
(char *)memalign(CONFIG_SYS_CACHELINE_SIZE, DBUF_LENGTH);
#endif
#ifdef ET_DEBUG
printf("rxbd %x txbd %x\n", (int)info->rxbd, (int)info->txbd);
#endif
info->phy_name = (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, 32);
}
static void fec_reset(struct fec_info_s *info)
{
volatile fec_t *fecp = (fec_t *)(info->iobase);
int i;
fecp->ecr = FEC_ECR_RESET;
for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i)
udelay(1);
if (i == FEC_RESET_DELAY)
printf("FEC_RESET_DELAY timeout\n");
}
static void set_fec_duplex_speed(volatile fec_t *fecp, int dup_spd)
{
struct bd_info *bd = gd->bd;
if ((dup_spd >> 16) == FULL) {
/* Set maximum frame length */
fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
FEC_RCR_PROM | 0x100;
fecp->tcr = FEC_TCR_FDEN;
} else {
/* Half duplex mode */
fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
FEC_RCR_MII_MODE | FEC_RCR_DRT;
fecp->tcr &= ~FEC_TCR_FDEN;
}
if ((dup_spd & 0xFFFF) == _100BASET) {
#ifdef MII_DEBUG
printf("100Mbps\n");
#endif
bd->bi_ethspeed = 100;
} else {
#ifdef MII_DEBUG
printf("10Mbps\n");
#endif
bd->bi_ethspeed = 10;
}
}
#ifdef ET_DEBUG
static void dbg_fec_regs(struct udevice *dev)
{
struct fec_info_s *info = dev_get_priv(dev);
volatile fec_t *fecp = (fec_t *)(info->iobase);
printf("=====\n");
printf("ievent %x - %x\n", (int)&fecp->eir, fecp->eir);
printf("imask %x - %x\n", (int)&fecp->eimr, fecp->eimr);
printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar);
printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar);
printf("ecntrl %x - %x\n", (int)&fecp->ecr, fecp->ecr);
printf("mii_mframe %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
printf("mii_speed %x - %x\n", (int)&fecp->mscr, fecp->mscr);
printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
printf("r_cntrl %x - %x\n", (int)&fecp->rcr, fecp->rcr);
printf("x_cntrl %x - %x\n", (int)&fecp->tcr, fecp->tcr);
printf("padr_l %x - %x\n", (int)&fecp->palr, fecp->palr);
printf("padr_u %x - %x\n", (int)&fecp->paur, fecp->paur);
printf("op_pause %x - %x\n", (int)&fecp->opd, fecp->opd);
printf("iadr_u %x - %x\n", (int)&fecp->iaur, fecp->iaur);
printf("iadr_l %x - %x\n", (int)&fecp->ialr, fecp->ialr);
printf("gadr_u %x - %x\n", (int)&fecp->gaur, fecp->gaur);
printf("gadr_l %x - %x\n", (int)&fecp->galr, fecp->galr);
printf("x_wmrk %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
printf("r_bound %x - %x\n", (int)&fecp->frbr, fecp->frbr);
printf("r_fstart %x - %x\n", (int)&fecp->frsr, fecp->frsr);
printf("r_drng %x - %x\n", (int)&fecp->erdsr, fecp->erdsr);
printf("x_drng %x - %x\n", (int)&fecp->etdsr, fecp->etdsr);
printf("r_bufsz %x - %x\n", (int)&fecp->emrbr, fecp->emrbr);
printf("\n");
printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop,
fecp->rmon_t_drop);
printf("rmon_t_packets %x - %x\n", (int)&fecp->rmon_t_packets,
fecp->rmon_t_packets);
printf("rmon_t_bc_pkt %x - %x\n", (int)&fecp->rmon_t_bc_pkt,
fecp->rmon_t_bc_pkt);
printf("rmon_t_mc_pkt %x - %x\n", (int)&fecp->rmon_t_mc_pkt,
fecp->rmon_t_mc_pkt);
printf("rmon_t_crc_align %x - %x\n", (int)&fecp->rmon_t_crc_align,
fecp->rmon_t_crc_align);
printf("rmon_t_undersize %x - %x\n", (int)&fecp->rmon_t_undersize,
fecp->rmon_t_undersize);
printf("rmon_t_oversize %x - %x\n", (int)&fecp->rmon_t_oversize,
fecp->rmon_t_oversize);
printf("rmon_t_frag %x - %x\n", (int)&fecp->rmon_t_frag,
fecp->rmon_t_frag);
printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab,
fecp->rmon_t_jab);
printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col,
fecp->rmon_t_col);
printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64,
fecp->rmon_t_p64);
printf("rmon_t_p65to127 %x - %x\n", (int)&fecp->rmon_t_p65to127,
fecp->rmon_t_p65to127);
printf("rmon_t_p128to255 %x - %x\n", (int)&fecp->rmon_t_p128to255,
fecp->rmon_t_p128to255);
printf("rmon_t_p256to511 %x - %x\n", (int)&fecp->rmon_t_p256to511,
fecp->rmon_t_p256to511);
printf("rmon_t_p512to1023 %x - %x\n", (int)&fecp->rmon_t_p512to1023,
fecp->rmon_t_p512to1023);
printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
fecp->rmon_t_p1024to2047);
printf("rmon_t_p_gte2048 %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
fecp->rmon_t_p_gte2048);
printf("rmon_t_octets %x - %x\n", (int)&fecp->rmon_t_octets,
fecp->rmon_t_octets);
printf("\n");
printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop,
fecp->ieee_t_drop);
printf("ieee_t_frame_ok %x - %x\n", (int)&fecp->ieee_t_frame_ok,
fecp->ieee_t_frame_ok);
printf("ieee_t_1col %x - %x\n", (int)&fecp->ieee_t_1col,
fecp->ieee_t_1col);
printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol,
fecp->ieee_t_mcol);
printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def,
fecp->ieee_t_def);
printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol,
fecp->ieee_t_lcol);
printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol,
fecp->ieee_t_excol);
printf("ieee_t_macerr %x - %x\n", (int)&fecp->ieee_t_macerr,
fecp->ieee_t_macerr);
printf("ieee_t_cserr %x - %x\n", (int)&fecp->ieee_t_cserr,
fecp->ieee_t_cserr);
printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe,
fecp->ieee_t_sqe);
printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc,
fecp->ieee_t_fdxfc);
printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
fecp->ieee_t_octets_ok);
printf("\n");
printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop,
fecp->rmon_r_drop);
printf("rmon_r_packets %x - %x\n", (int)&fecp->rmon_r_packets,
fecp->rmon_r_packets);
printf("rmon_r_bc_pkt %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
fecp->rmon_r_bc_pkt);
printf("rmon_r_mc_pkt %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
fecp->rmon_r_mc_pkt);
printf("rmon_r_crc_align %x - %x\n", (int)&fecp->rmon_r_crc_align,
fecp->rmon_r_crc_align);
printf("rmon_r_undersize %x - %x\n", (int)&fecp->rmon_r_undersize,
fecp->rmon_r_undersize);
printf("rmon_r_oversize %x - %x\n", (int)&fecp->rmon_r_oversize,
fecp->rmon_r_oversize);
printf("rmon_r_frag %x - %x\n", (int)&fecp->rmon_r_frag,
fecp->rmon_r_frag);
printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab,
fecp->rmon_r_jab);
printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64,
fecp->rmon_r_p64);
printf("rmon_r_p65to127 %x - %x\n", (int)&fecp->rmon_r_p65to127,
fecp->rmon_r_p65to127);
printf("rmon_r_p128to255 %x - %x\n", (int)&fecp->rmon_r_p128to255,
fecp->rmon_r_p128to255);
printf("rmon_r_p256to511 %x - %x\n", (int)&fecp->rmon_r_p256to511,
fecp->rmon_r_p256to511);
printf("rmon_r_p512to1023 %x - %x\n", (int)&fecp->rmon_r_p512to1023,
fecp->rmon_r_p512to1023);
printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
fecp->rmon_r_p1024to2047);
printf("rmon_r_p_gte2048 %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
fecp->rmon_r_p_gte2048);
printf("rmon_r_octets %x - %x\n", (int)&fecp->rmon_r_octets,
fecp->rmon_r_octets);
printf("\n");
printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop,
fecp->ieee_r_drop);
printf("ieee_r_frame_ok %x - %x\n", (int)&fecp->ieee_r_frame_ok,
fecp->ieee_r_frame_ok);
printf("ieee_r_crc %x - %x\n", (int)&fecp->ieee_r_crc,
fecp->ieee_r_crc);
printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align,
fecp->ieee_r_align);
printf("ieee_r_macerr %x - %x\n", (int)&fecp->ieee_r_macerr,
fecp->ieee_r_macerr);
printf("ieee_r_fdxfc %x - %x\n", (int)&fecp->ieee_r_fdxfc,
fecp->ieee_r_fdxfc);
printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
fecp->ieee_r_octets_ok);
printf("\n\n\n");
}
#endif
int mcffec_init(struct udevice *dev)
{
struct fec_info_s *info = dev_get_priv(dev);
volatile fec_t *fecp = (fec_t *) (info->iobase);
int rval, i;
uchar ea[6];
fecpin_setclear(info, 1);
fec_reset(info);
mii_init();
set_fec_duplex_speed(fecp, info->dup_spd);
/* We use strictly polling mode only */
fecp->eimr = 0;
/* Clear any pending interrupt */
fecp->eir = 0xffffffff;
/* Set station address */
if (info->index == 0)
rval = eth_env_get_enetaddr("ethaddr", ea);
else
rval = eth_env_get_enetaddr("eth1addr", ea);
if (!rval) {
puts("Please set a valid MAC address\n");
return -EINVAL;
}
fecp->palr =
(ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
fecp->paur = (ea[4] << 24) | (ea[5] << 16);
/* Clear unicast address hash table */
fecp->iaur = 0;
fecp->ialr = 0;
/* Clear multicast address hash table */
fecp->gaur = 0;
fecp->galr = 0;
/* Set maximum receive buffer size. */
fecp->emrbr = PKT_MAXBLR_SIZE;
/*
* Setup Buffers and Buffer Descriptors
*/
info->rx_idx = 0;
info->tx_idx = 0;
/*
* Setup Receiver Buffer Descriptors (13.14.24.18)
* Settings:
* Empty, Wrap
*/
for (i = 0; i < PKTBUFSRX; i++) {
info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
info->rxbd[i].cbd_datlen = 0; /* Reset */
info->rxbd[i].cbd_bufaddr = (uint) net_rx_packets[i];
}
info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
/*
* Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
* Settings:
* Last, Tx CRC
*/
for (i = 0; i < TX_BUF_CNT; i++) {
info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
info->txbd[i].cbd_datlen = 0; /* Reset */
info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
}
info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
/* Set receive and transmit descriptor base */
fecp->erdsr = (unsigned int)(&info->rxbd[0]);
fecp->etdsr = (unsigned int)(&info->txbd[0]);
/* Now enable the transmit and receive processing */
fecp->ecr |= FEC_ECR_ETHER_EN;
/* And last, try to fill Rx Buffer Descriptors
* Descriptor polling active
*/
fecp->rdar = 0x01000000;
return 0;
}
static int mcffec_send(struct udevice *dev, void *packet, int length)
{
struct fec_info_s *info = dev_get_priv(dev);
volatile fec_t *fecp = (fec_t *)info->iobase;
int j, rc;
u16 phy_status;
miiphy_read(dev->name, info->phy_addr, MII_BMSR, &phy_status);
/* section 16.9.23.3
* Wait for ready
*/
j = 0;
while ((info->txbd[info->tx_idx].cbd_sc & BD_ENET_TX_READY) &&
(j < info->to_loop)) {
udelay(1);
j++;
}
if (j >= info->to_loop)
printf("TX not ready\n");
info->txbd[info->tx_idx].cbd_bufaddr = (uint)packet;
info->txbd[info->tx_idx].cbd_datlen = length;
info->txbd[info->tx_idx].cbd_sc |= BD_ENET_TX_RDY_LST;
/* Activate transmit Buffer Descriptor polling */
fecp->tdar = 0x01000000; /* Descriptor polling active */
#ifndef CFG_SYS_FEC_BUF_USE_SRAM
/*
* FEC unable to initial transmit data packet.
* A nop will ensure the descriptor polling active completed.
* CF Internal RAM has shorter cycle access than DRAM. If use
* DRAM as Buffer descriptor and data, a nop is a must.
* Affect only V2 and V3.
*/
__asm__ ("nop");
#endif
#ifdef CONFIG_SYS_UNIFY_CACHE
icache_invalid();
#endif
j = 0;
while ((info->txbd[info->tx_idx].cbd_sc & BD_ENET_TX_READY) &&
(j < info->to_loop)) {
udelay(1);
j++;
}
if (j >= info->to_loop)
printf("TX timeout\n");
#ifdef ET_DEBUG
printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n",
__FILE__, __LINE__, __func__, j,
info->txbd[info->tx_idx].cbd_sc,
(info->txbd[info->tx_idx].cbd_sc & 0x003C) >> 2);
#endif
/* return only status bits */
rc = (info->txbd[info->tx_idx].cbd_sc & BD_ENET_TX_STATS);
info->tx_idx = (info->tx_idx + 1) % TX_BUF_CNT;
return rc;
}
static int mcffec_recv(struct udevice *dev, int flags, uchar **packetp)
{
struct fec_info_s *info = dev_get_priv(dev);
volatile fec_t *fecp = (fec_t *)info->iobase;
int length = -1;
for (;;) {
#ifdef CONFIG_SYS_UNIFY_CACHE
icache_invalid();
#endif
/* If nothing received - leave for() loop */
if (info->rxbd[info->rx_idx].cbd_sc & BD_ENET_RX_EMPTY)
break;
length = info->rxbd[info->rx_idx].cbd_datlen;
if (info->rxbd[info->rx_idx].cbd_sc & 0x003f) {
printf("%s[%d] err: %x\n",
__func__, __LINE__,
info->rxbd[info->rx_idx].cbd_sc);
} else {
length -= 4;
/*
* Pass the buffer ptr up to the protocol layers.
*/
*packetp = net_rx_packets[info->rx_idx];
fecp->eir |= FEC_EIR_RXF;
}
/* Give the buffer back to the FEC. */
info->rxbd[info->rx_idx].cbd_datlen = 0;
/* wrap around buffer index when necessary */
if (info->rx_idx == LAST_PKTBUFSRX) {
info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E;
info->rx_idx = 0;
} else {
info->rxbd[info->rx_idx].cbd_sc = BD_ENET_RX_EMPTY;
info->rx_idx++;
}
/* Try to fill Buffer Descriptors
* Descriptor polling active
*/
fecp->rdar = 0x01000000;
}
return length;
}
static void mcffec_halt(struct udevice *dev)
{
struct fec_info_s *info = dev_get_priv(dev);
fec_reset(info);
fecpin_setclear(info, 0);
info->rx_idx = 0;
info->tx_idx = 0;
memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
memset(info->txbuf, 0, DBUF_LENGTH);
}
static const struct eth_ops mcffec_ops = {
.start = mcffec_init,
.send = mcffec_send,
.recv = mcffec_recv,
.stop = mcffec_halt,
};
/*
* Boot sequence, called just after mcffec_of_to_plat,
* as DM way, it replaces old mcffec_initialize.
*/
static int mcffec_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_plat(dev);
struct fec_info_s *info = dev_get_priv(dev);
int node = dev_of_offset(dev);
int retval, fec_idx;
const u32 *val;
info->index = dev_seq(dev);
info->iobase = pdata->iobase;
info->phy_addr = -1;
val = fdt_getprop(gd->fdt_blob, node, "mii-base", NULL);
if (val) {
u32 fec_iobase;
fec_idx = fdt32_to_cpu(*val);
if (fec_idx == info->index) {
fec_iobase = info->iobase;
} else {
printf("mii base != base address, fec_idx %d\n",
fec_idx);
retval = fec_get_base_addr(fec_idx, &fec_iobase);
if (retval)
return retval;
}
info->miibase = fec_iobase;
}
val = fdt_getprop(gd->fdt_blob, node, "phy-addr", NULL);
if (val)
info->phy_addr = fdt32_to_cpu(*val);
val = fdt_getprop(gd->fdt_blob, node, "timeout-loop", NULL);
if (val)
info->to_loop = fdt32_to_cpu(*val);
init_eth_info(info);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
info->bus = mdio_alloc();
if (!info->bus)
return -ENOMEM;
strcpy(info->bus->name, dev->name);
info->bus->read = mcffec_miiphy_read;
info->bus->write = mcffec_miiphy_write;
retval = mdio_register(info->bus);
if (retval < 0)
return retval;
#endif
return 0;
}
static int mcffec_remove(struct udevice *dev)
{
struct fec_info_s *priv = dev_get_priv(dev);
mdio_unregister(priv->bus);
mdio_free(priv->bus);
return 0;
}
/*
* Boot sequence, called 1st
*/
static int mcffec_of_to_plat(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_plat(dev);
const u32 *val;
pdata->iobase = dev_read_addr(dev);
/* Default to 10Mbit/s */
pdata->max_speed = 10;
val = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
"max-speed", NULL);
if (val)
pdata->max_speed = fdt32_to_cpu(*val);
return 0;
}
static const struct udevice_id mcffec_ids[] = {
{ .compatible = "fsl,mcf-fec" },
{ }
};
U_BOOT_DRIVER(mcffec) = {
.name = "mcffec",
.id = UCLASS_ETH,
.of_match = mcffec_ids,
.of_to_plat = mcffec_of_to_plat,
.probe = mcffec_probe,
.remove = mcffec_remove,
.ops = &mcffec_ops,
.priv_auto = sizeof(struct fec_info_s),
.plat_auto = sizeof(struct eth_pdata),
};
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