mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
449 lines
13 KiB
C
449 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2011 Freescale Semiconductor, Inc.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <log.h>
|
|
#include <time.h>
|
|
#include <asm/fsl_law.h>
|
|
#include <asm/fsl_serdes.h>
|
|
#include <asm/fsl_srio.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/errno.h>
|
|
|
|
#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
|
|
#define SRIO_PORT_ACCEPT_ALL 0x10000001
|
|
#define SRIO_IB_ATMU_AR 0x80f55000
|
|
#define SRIO_OB_ATMU_AR_MAINT 0x80077000
|
|
#define SRIO_OB_ATMU_AR_RW 0x80045000
|
|
#define SRIO_LCSBA1CSR_OFFSET 0x5c
|
|
#define SRIO_MAINT_WIN_SIZE 0x1000000 /* 16M */
|
|
#define SRIO_RW_WIN_SIZE 0x100000 /* 1M */
|
|
#define SRIO_LCSBA1CSR 0x60000000
|
|
#endif
|
|
|
|
#if defined(CONFIG_FSL_CORENET)
|
|
#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
|
|
#define _DEVDISR_SRIO1 FSL_CORENET_DEVDISR3_SRIO1
|
|
#define _DEVDISR_SRIO2 FSL_CORENET_DEVDISR3_SRIO2
|
|
#else
|
|
#define _DEVDISR_SRIO1 FSL_CORENET_DEVDISR_SRIO1
|
|
#define _DEVDISR_SRIO2 FSL_CORENET_DEVDISR_SRIO2
|
|
#endif
|
|
#define _DEVDISR_RMU FSL_CORENET_DEVDISR_RMU
|
|
#define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
|
|
#elif defined(CONFIG_MPC85xx)
|
|
#define _DEVDISR_SRIO1 MPC85xx_DEVDISR_SRIO
|
|
#define _DEVDISR_SRIO2 MPC85xx_DEVDISR_SRIO
|
|
#define _DEVDISR_RMU MPC85xx_DEVDISR_RMSG
|
|
#define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
|
|
#elif defined(CONFIG_MPC86xx)
|
|
#define _DEVDISR_SRIO1 MPC86xx_DEVDISR_SRIO
|
|
#define _DEVDISR_SRIO2 MPC86xx_DEVDISR_SRIO
|
|
#define _DEVDISR_RMU MPC86xx_DEVDISR_RMSG
|
|
#define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
|
|
(&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
|
|
#else
|
|
#error "No defines for DEVDISR_SRIO"
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_FSL_ERRATUM_SRIO_A004034
|
|
/*
|
|
* Erratum A-004034
|
|
* Affects: SRIO
|
|
* Description: During port initialization, the SRIO port performs
|
|
* lane synchronization (detecting valid symbols on a lane) and
|
|
* lane alignment (coordinating multiple lanes to receive valid data
|
|
* across lanes). Internal errors in lane synchronization and lane
|
|
* alignment may cause failure to achieve link initialization at
|
|
* the configured port width.
|
|
* An SRIO port configured as a 4x port may see one of these scenarios:
|
|
* 1. One or more lanes fails to achieve lane synchronization. Depending
|
|
* on which lanes fail, this may result in downtraining from 4x to 1x
|
|
* on lane 0, 4x to 1x on lane R (redundant lane).
|
|
* 2. The link may fail to achieve lane alignment as a 4x, even though
|
|
* all 4 lanes achieve lane synchronization, and downtrain to a 1x.
|
|
* An SRIO port configured as a 1x port may fail to complete port
|
|
* initialization (PnESCSR[PU] never deasserts) because of scenario 1.
|
|
* Impact: SRIO port may downtrain to 1x, or may fail to complete
|
|
* link initialization. Once a port completes link initialization
|
|
* successfully, it will operate normally.
|
|
*/
|
|
static int srio_erratum_a004034(u8 port)
|
|
{
|
|
serdes_corenet_t *srds_regs;
|
|
u32 conf_lane;
|
|
u32 init_lane;
|
|
int idx, first, last;
|
|
u32 i;
|
|
unsigned long long end_tick;
|
|
struct ccsr_rio *srio_regs = (void *)CONFIG_SYS_FSL_SRIO_ADDR;
|
|
|
|
srds_regs = (void *)(CONFIG_SYS_FSL_CORENET_SERDES_ADDR);
|
|
conf_lane = (in_be32((void *)&srds_regs->srdspccr0)
|
|
>> (12 - port * 4)) & 0x3;
|
|
init_lane = (in_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pccsr) >> 27) & 0x7;
|
|
|
|
/*
|
|
* Start a counter set to ~2 ms after the SERDES reset is
|
|
* complete (SERDES SRDSBnRSTCTL[RST_DONE]=1 for n
|
|
* corresponding to the SERDES bank/PLL for the SRIO port).
|
|
*/
|
|
if (in_be32((void *)&srds_regs->bank[0].rstctl)
|
|
& SRDS_RSTCTL_RSTDONE) {
|
|
/*
|
|
* Poll the port uninitialized status (SRIO PnESCSR[PO]) until
|
|
* PO=1 or the counter expires. If the counter expires, the
|
|
* port has failed initialization: go to recover steps. If PO=1
|
|
* and the desired port width is 1x, go to normal steps. If
|
|
* PO = 1 and the desired port width is 4x, go to recover steps.
|
|
*/
|
|
end_tick = usec2ticks(2000) + get_ticks();
|
|
do {
|
|
if (in_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pescsr) & 0x2) {
|
|
if (conf_lane == 0x1)
|
|
goto host_ok;
|
|
else {
|
|
if (init_lane == 0x2)
|
|
goto host_ok;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
} while (end_tick > get_ticks());
|
|
|
|
/* recover at most 3 times */
|
|
for (i = 0; i < 3; i++) {
|
|
/* Set SRIO PnCCSR[PD]=1 */
|
|
setbits_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pccsr,
|
|
0x800000);
|
|
/*
|
|
* Set SRIO PnPCR[OBDEN] on the host to
|
|
* enable the discarding of any pending packets.
|
|
*/
|
|
setbits_be32((void *)&srio_regs->impl.port[port].pcr,
|
|
0x04);
|
|
/* Wait 50 us */
|
|
udelay(50);
|
|
/* Run sync command */
|
|
isync();
|
|
|
|
if (port)
|
|
first = serdes_get_first_lane(SRIO2);
|
|
else
|
|
first = serdes_get_first_lane(SRIO1);
|
|
if (unlikely(first < 0))
|
|
return -ENODEV;
|
|
if (conf_lane == 0x1)
|
|
last = first;
|
|
else
|
|
last = first + 3;
|
|
/*
|
|
* Set SERDES BnGCRm0[RRST]=0 for each SRIO
|
|
* bank n and lane m.
|
|
*/
|
|
for (idx = first; idx <= last; idx++)
|
|
clrbits_be32(&srds_regs->lane[idx].gcr0,
|
|
SRDS_GCR0_RRST);
|
|
/*
|
|
* Read SERDES BnGCRm0 for each SRIO
|
|
* bank n and lane m
|
|
*/
|
|
for (idx = first; idx <= last; idx++)
|
|
in_be32(&srds_regs->lane[idx].gcr0);
|
|
/* Run sync command */
|
|
isync();
|
|
/* Wait >= 100 ns */
|
|
udelay(1);
|
|
/*
|
|
* Set SERDES BnGCRm0[RRST]=1 for each SRIO
|
|
* bank n and lane m.
|
|
*/
|
|
for (idx = first; idx <= last; idx++)
|
|
setbits_be32(&srds_regs->lane[idx].gcr0,
|
|
SRDS_GCR0_RRST);
|
|
/*
|
|
* Read SERDES BnGCRm0 for each SRIO
|
|
* bank n and lane m
|
|
*/
|
|
for (idx = first; idx <= last; idx++)
|
|
in_be32(&srds_regs->lane[idx].gcr0);
|
|
/* Run sync command */
|
|
isync();
|
|
/* Wait >= 300 ns */
|
|
udelay(1);
|
|
|
|
/* Write 1 to clear all bits in SRIO PnSLCSR */
|
|
out_be32((void *)&srio_regs->impl.port[port].slcsr,
|
|
0xffffffff);
|
|
/* Clear SRIO PnPCR[OBDEN] on the host */
|
|
clrbits_be32((void *)&srio_regs->impl.port[port].pcr,
|
|
0x04);
|
|
/* Set SRIO PnCCSR[PD]=0 */
|
|
clrbits_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pccsr,
|
|
0x800000);
|
|
/* Wait >= 24 ms */
|
|
udelay(24000);
|
|
/* Poll the state of the port again */
|
|
init_lane =
|
|
(in_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pccsr) >> 27) & 0x7;
|
|
if (in_be32((void *)&srio_regs->lp_serial
|
|
.port[port].pescsr) & 0x2) {
|
|
if (conf_lane == 0x1)
|
|
goto host_ok;
|
|
else {
|
|
if (init_lane == 0x2)
|
|
goto host_ok;
|
|
}
|
|
}
|
|
if (i == 2)
|
|
return -ENODEV;
|
|
}
|
|
} else
|
|
return -ENODEV;
|
|
|
|
host_ok:
|
|
/* Poll PnESCSR[OES] on the host until it is clear */
|
|
end_tick = usec2ticks(1000000) + get_ticks();
|
|
do {
|
|
if (!(in_be32((void *)&srio_regs->lp_serial.port[port].pescsr)
|
|
& 0x10000)) {
|
|
out_be32(((void *)&srio_regs->lp_serial
|
|
.port[port].pescsr), 0xffffffff);
|
|
out_be32(((void *)&srio_regs->phys_err
|
|
.port[port].edcsr), 0);
|
|
out_be32(((void *)&srio_regs->logical_err.ltledcsr), 0);
|
|
return 0;
|
|
}
|
|
} while (end_tick > get_ticks());
|
|
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
void srio_init(void)
|
|
{
|
|
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
|
|
int srio1_used = 0, srio2_used = 0;
|
|
u32 *devdisr;
|
|
|
|
#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
|
|
devdisr = &gur->devdisr3;
|
|
#else
|
|
devdisr = &gur->devdisr;
|
|
#endif
|
|
if (is_serdes_configured(SRIO1)) {
|
|
set_next_law(CONFIG_SYS_SRIO1_MEM_PHYS,
|
|
law_size_bits(CONFIG_SYS_SRIO1_MEM_SIZE),
|
|
LAW_TRGT_IF_RIO_1);
|
|
srio1_used = 1;
|
|
#ifdef CONFIG_SYS_FSL_ERRATUM_SRIO_A004034
|
|
if (srio_erratum_a004034(0) < 0)
|
|
printf("SRIO1: enabled but port error\n");
|
|
else
|
|
#endif
|
|
printf("SRIO1: enabled\n");
|
|
} else {
|
|
printf("SRIO1: disabled\n");
|
|
}
|
|
|
|
#ifdef CONFIG_SRIO2
|
|
if (is_serdes_configured(SRIO2)) {
|
|
set_next_law(CONFIG_SYS_SRIO2_MEM_PHYS,
|
|
law_size_bits(CONFIG_SYS_SRIO2_MEM_SIZE),
|
|
LAW_TRGT_IF_RIO_2);
|
|
srio2_used = 1;
|
|
#ifdef CONFIG_SYS_FSL_ERRATUM_SRIO_A004034
|
|
if (srio_erratum_a004034(1) < 0)
|
|
printf("SRIO2: enabled but port error\n");
|
|
else
|
|
#endif
|
|
printf("SRIO2: enabled\n");
|
|
|
|
} else {
|
|
printf("SRIO2: disabled\n");
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_FSL_CORENET
|
|
/* On FSL_CORENET devices we can disable individual ports */
|
|
if (!srio1_used)
|
|
setbits_be32(devdisr, _DEVDISR_SRIO1);
|
|
if (!srio2_used)
|
|
setbits_be32(devdisr, _DEVDISR_SRIO2);
|
|
#endif
|
|
|
|
/* neither port is used - disable everything */
|
|
if (!srio1_used && !srio2_used) {
|
|
setbits_be32(devdisr, _DEVDISR_SRIO1);
|
|
setbits_be32(devdisr, _DEVDISR_SRIO2);
|
|
setbits_be32(devdisr, _DEVDISR_RMU);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
|
|
void srio_boot_master(int port)
|
|
{
|
|
struct ccsr_rio *srio = (void *)CONFIG_SYS_FSL_SRIO_ADDR;
|
|
|
|
/* set port accept-all */
|
|
out_be32((void *)&srio->impl.port[port - 1].ptaacr,
|
|
SRIO_PORT_ACCEPT_ALL);
|
|
|
|
debug("SRIOBOOT - MASTER: Master port [ %d ] for srio boot.\n", port);
|
|
/* configure inbound window for slave's u-boot image */
|
|
debug("SRIOBOOT - MASTER: Inbound window for slave's image; "
|
|
"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[0].riwtar,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[0].riwbar,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1 >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[0].riwar,
|
|
SRIO_IB_ATMU_AR
|
|
| atmu_size_mask(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE));
|
|
|
|
/* configure inbound window for slave's u-boot image */
|
|
debug("SRIOBOOT - MASTER: Inbound window for slave's image; "
|
|
"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[1].riwtar,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[1].riwbar,
|
|
CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2 >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[1].riwar,
|
|
SRIO_IB_ATMU_AR
|
|
| atmu_size_mask(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE));
|
|
|
|
/* configure inbound window for slave's ucode and ENV */
|
|
debug("SRIOBOOT - MASTER: Inbound window for slave's ucode and ENV; "
|
|
"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS,
|
|
(u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS,
|
|
CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[2].riwtar,
|
|
CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[2].riwbar,
|
|
CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1].inbw[2].riwar,
|
|
SRIO_IB_ATMU_AR
|
|
| atmu_size_mask(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE));
|
|
}
|
|
|
|
void srio_boot_master_release_slave(int port)
|
|
{
|
|
struct ccsr_rio *srio = (void *)CONFIG_SYS_FSL_SRIO_ADDR;
|
|
u32 escsr;
|
|
debug("SRIOBOOT - MASTER: "
|
|
"Check the port status and release slave core ...\n");
|
|
|
|
escsr = in_be32((void *)&srio->lp_serial.port[port - 1].pescsr);
|
|
if (escsr & 0x2) {
|
|
if (escsr & 0x10100) {
|
|
debug("SRIOBOOT - MASTER: Port [ %d ] is error.\n",
|
|
port);
|
|
} else {
|
|
debug("SRIOBOOT - MASTER: "
|
|
"Port [ %d ] is ready, now release slave's core ...\n",
|
|
port);
|
|
/*
|
|
* configure outbound window
|
|
* with maintenance attribute to set slave's LCSBA1CSR
|
|
*/
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[1].rowtar, 0);
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[1].rowtear, 0);
|
|
if (port - 1)
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[1].rowbar,
|
|
CONFIG_SYS_SRIO2_MEM_PHYS >> 12);
|
|
else
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[1].rowbar,
|
|
CONFIG_SYS_SRIO1_MEM_PHYS >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[1].rowar,
|
|
SRIO_OB_ATMU_AR_MAINT
|
|
| atmu_size_mask(SRIO_MAINT_WIN_SIZE));
|
|
|
|
/*
|
|
* configure outbound window
|
|
* with R/W attribute to set slave's BRR
|
|
*/
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[2].rowtar,
|
|
SRIO_LCSBA1CSR >> 9);
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[2].rowtear, 0);
|
|
if (port - 1)
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[2].rowbar,
|
|
(CONFIG_SYS_SRIO2_MEM_PHYS
|
|
+ SRIO_MAINT_WIN_SIZE) >> 12);
|
|
else
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[2].rowbar,
|
|
(CONFIG_SYS_SRIO1_MEM_PHYS
|
|
+ SRIO_MAINT_WIN_SIZE) >> 12);
|
|
out_be32((void *)&srio->atmu.port[port - 1]
|
|
.outbw[2].rowar,
|
|
SRIO_OB_ATMU_AR_RW
|
|
| atmu_size_mask(SRIO_RW_WIN_SIZE));
|
|
|
|
/*
|
|
* Set the LCSBA1CSR register in slave
|
|
* by the maint-outbound window
|
|
*/
|
|
if (port - 1) {
|
|
out_be32((void *)CONFIG_SYS_SRIO2_MEM_VIRT
|
|
+ SRIO_LCSBA1CSR_OFFSET,
|
|
SRIO_LCSBA1CSR);
|
|
while (in_be32((void *)CONFIG_SYS_SRIO2_MEM_VIRT
|
|
+ SRIO_LCSBA1CSR_OFFSET)
|
|
!= SRIO_LCSBA1CSR)
|
|
;
|
|
/*
|
|
* And then set the BRR register
|
|
* to release slave core
|
|
*/
|
|
out_be32((void *)CONFIG_SYS_SRIO2_MEM_VIRT
|
|
+ SRIO_MAINT_WIN_SIZE
|
|
+ CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET,
|
|
CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK);
|
|
} else {
|
|
out_be32((void *)CONFIG_SYS_SRIO1_MEM_VIRT
|
|
+ SRIO_LCSBA1CSR_OFFSET,
|
|
SRIO_LCSBA1CSR);
|
|
while (in_be32((void *)CONFIG_SYS_SRIO1_MEM_VIRT
|
|
+ SRIO_LCSBA1CSR_OFFSET)
|
|
!= SRIO_LCSBA1CSR)
|
|
;
|
|
/*
|
|
* And then set the BRR register
|
|
* to release slave core
|
|
*/
|
|
out_be32((void *)CONFIG_SYS_SRIO1_MEM_VIRT
|
|
+ SRIO_MAINT_WIN_SIZE
|
|
+ CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET,
|
|
CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK);
|
|
}
|
|
debug("SRIOBOOT - MASTER: "
|
|
"Release slave successfully! Now the slave should start up!\n");
|
|
}
|
|
} else
|
|
debug("SRIOBOOT - MASTER: Port [ %d ] is not ready.\n", port);
|
|
}
|
|
#endif
|