Commit 4f1d1b7d authored by Mingkai Hu's avatar Mingkai Hu Committed by Kumar Gala
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powerpc/p2041rdb: Add p2041rdb board support



P2041RDB Specification:
-----------------------
Memory subsystem:
 * 4Gbyte unbuffered DDR3 SDRAM SO-DIMM(64bit bus)
 * 128 Mbyte NOR flash single-chip memory
 * 256 Kbit M24256 I2C EEPROM
 * 16 Mbyte SPI memory
 * SD connector to interface with the SD memory card

Ethernet:
 * dTSEC1: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC2: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC3: connected to the Vitesse SGMII PHY (VSC8221)
 * dTSEC4: connected to the Vitesse RGMII PHY (VSC8641)
 * dTSEC5: connected to the Vitesse RGMII PHY (VSC8641)

PCIe:
 * Lanes E, F, G and H of Bank1 are connected to one x4 PCIe SLOT1
 * Lanes C and Land D of Bank2 are connected to one x4 PCIe SLOT2

SATA: Lanes C and Land D of Bank2 are connected to two SATA connectors

USB 2.0: connected via a internal UTMI PHY to two TYPE-A interfaces

I2C:
 * I2C1: Real time clock, Temperature sensor, Memory module
 * I2C2: Vcore Regulator, 256Kbit I2C Bus EEPROM, PCIe slot1/2

UART: supports two UARTs up to 115200 bps for console
Signed-off-by: default avatarMingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent c518fc02
#
# Copyright 2011 Freescale Semiconductor, Inc.
# (C) Copyright 2001-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# 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 $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
COBJS-y += $(BOARD).o
COBJS-y += cpld.o
COBJS-y += ddr.o
COBJS-y += law.o
COBJS-y += tlb.o
COBJS-$(CONFIG_PCI) += pci.o
SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS-y))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(call cmd_link_o_target, $(OBJS))
clean:
rm -f $(OBJS) $(SOBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
/**
* Copyright 2011 Freescale Semiconductor
* Author: Mingkai Hu <Mingkai.hu@freescale.com>
*
* 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 file provides support for the board-specific CPLD used on some Freescale
* reference boards.
*
* The following macros need to be defined:
*
* CPLD_BASE - The virtual address of the base of the CPLD register map
*
*/
#include <common.h>
#include <command.h>
#include <asm/io.h>
#include "cpld.h"
static u8 __cpld_read(unsigned int reg)
{
void *p = (void *)CPLD_BASE;
return in_8(p + reg);
}
u8 cpld_read(unsigned int reg) __attribute__((weak, alias("__cpld_read")));
static void __cpld_write(unsigned int reg, u8 value)
{
void *p = (void *)CPLD_BASE;
out_8(p + reg, value);
}
void cpld_write(unsigned int reg, u8 value)
__attribute__((weak, alias("__cpld_write")));
/*
* Reset the board. This honors the por_cfg registers.
*/
void __cpld_reset(void)
{
CPLD_WRITE(system_rst, 1);
}
void cpld_reset(void) __attribute__((weak, alias("__cpld_reset")));
/**
* Set the boot bank to the alternate bank
*/
void __cpld_set_altbank(void)
{
CPLD_WRITE(fbank_sel, 1);
}
void cpld_set_altbank(void)
__attribute__((weak, alias("__cpld_set_altbank")));
/**
* Set the boot bank to the default bank
*/
void __cpld_clear_altbank(void)
{
CPLD_WRITE(fbank_sel, 0);
}
void cpld_clear_altbank(void)
__attribute__((weak, alias("__cpld_clear_altbank")));
#ifdef DEBUG
static void cpld_dump_regs(void)
{
printf("cpld_ver = 0x%02x\n", CPLD_READ(cpld_ver));
printf("cpld_ver_sub = 0x%02x\n", CPLD_READ(cpld_ver_sub));
printf("pcba_ver = 0x%02x\n", CPLD_READ(pcba_ver));
printf("system_rst = 0x%02x\n", CPLD_READ(system_rst));
printf("wd_cfg = 0x%02x\n", CPLD_READ(wd_cfg));
printf("sw_ctl_on = 0x%02x\n", CPLD_READ(sw_ctl_on));
printf("por_cfg = 0x%02x\n", CPLD_READ(por_cfg));
printf("switch_strobe = 0x%02x\n", CPLD_READ(switch_strobe));
printf("jtag_sel = 0x%02x\n", CPLD_READ(jtag_sel));
printf("sdbank1_clk = 0x%02x\n", CPLD_READ(sdbank1_clk));
printf("sdbank2_clk = 0x%02x\n", CPLD_READ(sdbank2_clk));
printf("fbank_sel = 0x%02x\n", CPLD_READ(fbank_sel));
printf("serdes_mux = 0x%02x\n", CPLD_READ(serdes_mux));
printf("SW[2] = 0x%02x\n", in_8(&CPLD_SW(2)));
putc('\n');
}
#endif
int cpld_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rc = 0;
unsigned int i;
if (argc <= 1)
return cmd_usage(cmdtp);
if (strcmp(argv[1], "reset") == 0) {
if (strcmp(argv[2], "altbank") == 0)
cpld_set_altbank();
else
cpld_clear_altbank();
cpld_reset();
} else if (strcmp(argv[1], "watchdog") == 0) {
static char *period[8] = {"1ms", "10ms", "30ms", "disable",
"100ms", "1s", "10s", "60s"};
for (i = 0; i < ARRAY_SIZE(period); i++) {
if (strcmp(argv[2], period[i]) == 0)
CPLD_WRITE(wd_cfg, i);
}
} else if (strcmp(argv[1], "lane_mux") == 0) {
u32 lane = simple_strtoul(argv[2], NULL, 16);
u8 val = (u8)simple_strtoul(argv[3], NULL, 16);
u8 reg = CPLD_READ(serdes_mux);
switch (lane) {
case 0x6:
reg &= ~SERDES_MUX_LANE_6_MASK;
reg |= val << SERDES_MUX_LANE_6_SHIFT;
break;
case 0xa:
reg &= ~SERDES_MUX_LANE_A_MASK;
reg |= val << SERDES_MUX_LANE_A_SHIFT;
break;
case 0xc:
reg &= ~SERDES_MUX_LANE_C_MASK;
reg |= val << SERDES_MUX_LANE_C_SHIFT;
break;
case 0xd:
reg &= ~SERDES_MUX_LANE_D_MASK;
reg |= val << SERDES_MUX_LANE_D_SHIFT;
break;
default:
printf("Invalid value\n");
break;
}
CPLD_WRITE(serdes_mux, reg);
#ifdef DEBUG
} else if (strcmp(argv[1], "dump") == 0) {
cpld_dump_regs();
#endif
} else
rc = cmd_usage(cmdtp);
return rc;
}
U_BOOT_CMD(
cpld_cmd, CONFIG_SYS_MAXARGS, 1, cpld_cmd,
"Reset the board or pin mulexing selection using the CPLD sequencer",
"reset - hard reset to default bank\n"
"cpld_cmd reset altbank - reset to alternate bank\n"
"cpld_cmd watchdog <watchdog_period> - set the watchdog period\n"
" period: 1ms 10ms 30ms 100ms 1s 10s 60s disable\n"
"cpld_cmd lane_mux <lane> <mux_value> - set multiplexed lane pin\n"
" lane 6: 0 -> slot1 (Default)\n"
" 1 -> SGMII\n"
" lane a: 0 -> slot2 (Default)\n"
" 1 -> AURORA\n"
" lane c: 0 -> slot2 (Default)\n"
" 1 -> SATA0\n"
" lane d: 0 -> slot2 (Default)\n"
" 1 -> SATA1\n"
#ifdef DEBUG
"cpld_cmd dump - display the CPLD registers\n"
#endif
);
/**
* Copyright 2011 Freescale Semiconductor
* Author: Mingkai Hu <Mingkai.hu@freescale.com>
*
* 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 file provides support for the ngPIXIS, a board-specific FPGA used on
* some Freescale reference boards.
*/
/*
* CPLD register set. Feel free to add board-specific #ifdefs where necessary.
*/
typedef struct cpld_data {
u8 cpld_ver; /* 0x0 - CPLD Major Revision Register */
u8 cpld_ver_sub; /* 0x1 - CPLD Minor Revision Register */
u8 pcba_ver; /* 0x2 - PCBA Revision Register */
u8 system_rst; /* 0x3 - system reset register */
u8 wd_cfg; /* 0x4 - Watchdog Period Setting Register */
u8 sw_ctl_on; /* 0x5 - Switch Control Enable Register */
u8 por_cfg; /* 0x6 - POR Control Register */
u8 switch_strobe; /* 0x7 - Multiplexed pin Select Register */
u8 jtag_sel; /* 0x8 - JTAG or AURORA Selection */
u8 sdbank1_clk; /* 0x9 - SerDes Bank1 Reference clock */
u8 sdbank2_clk; /* 0xa - SerDes Bank2 Reference clock */
u8 fbank_sel; /* 0xb - Flash bank selection */
u8 serdes_mux; /* 0xc - Multiplexed pin Select Register */
u8 sw[1]; /* 0xd - SW2 Status */
} __attribute__ ((packed)) cpld_data_t;
#define SERDES_MUX_LANE_6_MASK 0x2
#define SERDES_MUX_LANE_6_SHIFT 1
#define SERDES_MUX_LANE_A_MASK 0x1
#define SERDES_MUX_LANE_A_SHIFT 0
#define SERDES_MUX_LANE_C_MASK 0x4
#define SERDES_MUX_LANE_C_SHIFT 2
#define SERDES_MUX_LANE_D_MASK 0x8
#define SERDES_MUX_LANE_D_SHIFT 3
/* Pointer to the CPLD register set */
#define cpld ((cpld_data_t *)CPLD_BASE)
/* The CPLD SW register that corresponds to board switch X, where x >= 1 */
#define CPLD_SW(x) (cpld->sw[(x) - 2])
u8 cpld_read(unsigned int reg);
void cpld_write(unsigned int reg, u8 value);
#define CPLD_READ(reg) cpld_read(offsetof(cpld_data_t, reg))
#define CPLD_WRITE(reg, value) cpld_write(offsetof(cpld_data_t, reg), value)
/*
* Copyright 2011 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* Version 2 as published by the Free Software Foundation.
*/
#include <common.h>
#include <i2c.h>
#include <hwconfig.h>
#include <asm/mmu.h>
#include <asm/fsl_ddr_sdram.h>
#include <asm/fsl_ddr_dimm_params.h>
#include <asm/fsl_law.h>
typedef struct {
u32 datarate_mhz_low;
u32 datarate_mhz_high;
u32 n_ranks;
u32 clk_adjust;
u32 wrlvl_start;
u32 cpo;
u32 write_data_delay;
u32 force_2T;
} board_specific_parameters_t;
/*
* ranges for parameters:
* wr_data_delay = 0-6
* clk adjust = 0-8
* cpo 2-0x1E (30)
*/
const board_specific_parameters_t board_specific_parameters[] = {
/*
* memory controller 0
* lo| hi| num| clk| wrlvl | cpo |wrdata|2T
* mhz| mhz|ranks|adjst| start | delay|
*/
{ 1017, 1116, 2, 4, 6, 0xff, 2, 0},
};
void fsl_ddr_board_options(memctl_options_t *popts,
dimm_params_t *pdimm,
unsigned int ctrl_num)
{
const board_specific_parameters_t *pbsp =
&board_specific_parameters[0];
u32 num_params = ARRAY_SIZE(board_specific_parameters);
u32 i;
ulong ddr_freq;
/*
* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr
* freqency and n_banks specified in board_specific_parameters table.
*/
ddr_freq = get_ddr_freq(0) / 1000000;
for (i = 0; i < num_params; i++) {
if (ddr_freq >= pbsp->datarate_mhz_low &&
ddr_freq <= pbsp->datarate_mhz_high &&
pdimm[0].n_ranks == pbsp->n_ranks) {
popts->cpo_override = pbsp->cpo;
popts->write_data_delay = pbsp->write_data_delay;
popts->clk_adjust = pbsp->clk_adjust;
popts->wrlvl_start = pbsp->wrlvl_start;
popts->twoT_en = pbsp->force_2T;
break;
}
pbsp++;
}
if (i == num_params) {
printf("Warning: board specific timing not found "
"for data rate %lu MT/s!\n", ddr_freq);
}
/*
* Factors to consider for half-strength driver enable:
* - number of DIMMs installed
*/
popts->half_strength_driver_enable = 0;
/* Write leveling override */
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xf;
/* Rtt and Rtt_WR override */
popts->rtt_override = 0;
/* Enable ZQ calibration */
popts->zq_en = 1;
/* DHC_EN =1, ODT = 60 Ohm */
popts->ddr_cdr1 = DDR_CDR1_DHC_EN;
}
phys_size_t initdram(int board_type)
{
phys_size_t dram_size = 0;
puts("Initializing....");
if (fsl_use_spd()) {
puts("using SPD\n");
dram_size = fsl_ddr_sdram();
} else {
puts("no SPD and fixed parameters\n");
return dram_size;
}
dram_size = setup_ddr_tlbs(dram_size / 0x100000);
dram_size *= 0x100000;
puts(" DDR: ");
return dram_size;
}
/*
* Copyright 2011 Freescale Semiconductor, Inc.
*
* 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 <asm/fsl_law.h>
#include <asm/mmu.h>
struct law_entry law_table[] = {
SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
SET_LAW(CONFIG_SYS_BMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_BMAN),
SET_LAW(CONFIG_SYS_QMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_QMAN),
SET_LAW(CPLD_BASE_PHYS, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
#ifdef CONFIG_SYS_DCSRBAR_PHYS
SET_LAW(CONFIG_SYS_DCSRBAR_PHYS, LAW_SIZE_32M, LAW_TRGT_IF_DCSR),
#endif
};
int num_law_entries = ARRAY_SIZE(law_table);
/*
* Copyright 2011 Freescale Semiconductor, Inc.
*
* 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 <command.h>
#include <netdev.h>
#include <linux/compiler.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/cache.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_law.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_portals.h>
#include <asm/fsl_liodn.h>
extern void pci_of_setup(void *blob, bd_t *bd);
#include "cpld.h"
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
u8 sw;
struct cpu_type *cpu = gd->cpu;
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
unsigned int i;
printf("Board: %sRDB, ", cpu->name);
printf("CPLD version: %d.%d ", CPLD_READ(cpld_ver),
CPLD_READ(cpld_ver_sub));
sw = CPLD_READ(fbank_sel);
printf("vBank: %d\n", sw & 0x1);
#ifdef CONFIG_PHYS_64BIT
puts("36-bit Addressing\n");
#endif
/*
* Display the RCW, so that no one gets confused as to what RCW
* we're actually using for this boot.
*/
puts("Reset Configuration Word (RCW):");
for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
u32 rcw = in_be32(&gur->rcwsr[i]);
if ((i % 4) == 0)
printf("\n %08x:", i * 4);
printf(" %08x", rcw);
}
puts("\n");
/*
* Display the actual SERDES reference clocks as configured by the
* dip switches on the board. Note that the SWx registers could
* technically be set to force the reference clocks to match the
* values that the SERDES expects (or vice versa). For now, however,
* we just display both values and hope the user notices when they
* don't match.
*/
puts("SERDES Reference Clocks: ");
sw = in_8(&CPLD_SW(2)) >> 2;
for (i = 0; i < 2; i++) {
static const char * const freq[] = {"0", "100", "125"};
unsigned int clock = (sw >> (2 * i)) & 3;
printf("Bank%u=%sMhz ", i+1, freq[clock]);
}
puts("\n");
return 0;
}
int board_early_init_f(void)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
/* board only uses the DDR_MCK0/1, so disable the DDR_MCK2/3 */
setbits_be32(&gur->ddrclkdr, 0x000f000f);
return 0;
}
int board_early_init_r(void)
{
const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
/*
* Remap Boot flash + PROMJET region to caching-inhibited
* so that flash can be erased properly.
*/
/* Flush d-cache and invalidate i-cache of any FLASH data */
flush_dcache();
invalidate_icache();
/* invalidate existing TLB entry for flash + promjet */
disable_tlb(flash_esel);
set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, flash_esel, BOOKE_PAGESZ_256M, 1);
set_liodns();
setup_portals();
return 0;
}
static const char *serdes_clock_to_string(u32 clock)
{
switch (clock) {
case SRDS_PLLCR0_RFCK_SEL_100:
return "100";
case SRDS_PLLCR0_RFCK_SEL_125:
return "125";
case SRDS_PLLCR0_RFCK_SEL_156_25:
return "156.25";
default:
return "150";
}
}
#define NUM_SRDS_BANKS 2
int misc_init_r(void)
{
serdes_corenet_t *regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
u32 actual[NUM_SRDS_BANKS];
unsigned int i;
u8 sw;
sw = in_8(&CPLD_SW(2)) >> 2;
for (i = 0; i < NUM_SRDS_BANKS; i++) {
unsigned int clock = (sw >> (2 * i)) & 3;
switch (clock) {
case 1:
actual[i] = SRDS_PLLCR0_RFCK_SEL_100;
break;
case 2:
actual[i] = SRDS_PLLCR0_RFCK_SEL_125;
break;
default:
printf("Warning: SDREFCLK%u switch setting of '11' is "
"unsupported\n", i + 1);
break;
}
}
for (i = 0; i < NUM_SRDS_BANKS; i++) {
u32 expected = in_be32(&regs->bank[i].pllcr0);
expected &= SRDS_PLLCR0_RFCK_SEL_MASK;
if (expected != actual[i]) {
printf("Warning: SERDES bank %u expects reference clock"
" %sMHz, but actual is %sMHz\n", i + 1,
serdes_clock_to_string(expected),
serdes_clock_to_string(actual[i]));
}
}