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/*
* Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
*
* Copyright 2007 Embedded Specialties, Inc.
*
* Copyright 2004, 2007 Freescale Semiconductor.
*
* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
*
* 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 <pci.h>
#include <asm/processor.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_pci.h>
#include <asm/fsl_ddr_sdram.h>
#include <spd_sdram.h>
#include <netdev.h>
#include <tsec.h>
#include <miiphy.h>
#include <libfdt.h>
#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
void local_bus_init(void);
void sdram_init(void);
long int fixed_sdram (void);
int board_early_init_f (void)
{
return 0;
}
int checkboard (void)
{
volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
in_8(rev) >> 4);
/*
* Initialize local bus.
*/
local_bus_init ();
out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
return 0;
}
phys_size_t
initdram(int board_type)
{
long dram_size = 0;
puts("Initializing\n");
#if defined(CONFIG_DDR_DLL)
{
/*
* Work around to stabilize DDR DLL MSYNC_IN.
* Errata DDR9 seems to have been fixed.
* This is now the workaround for Errata DDR11:
* Override DLL = 1, Course Adj = 1, Tap Select = 0
*/
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
out_be32(&gur->ddrdllcr, 0x81000000);
asm("sync;isync;msync");
udelay(200);
}
#endif
#if defined(CONFIG_SPD_EEPROM)
dram_size = fsl_ddr_sdram();
dram_size = setup_ddr_tlbs(dram_size / 0x100000);
dram_size *= 0x100000;
#else
dram_size = fixed_sdram ();
#endif
/*
* SDRAM Initialization
*/
sdram_init();
puts(" DDR: ");
return dram_size;
}
/*
* Initialize Local Bus
*/
void
local_bus_init(void)
{
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
uint clkdiv;
uint lbc_hz;
sys_info_t sysinfo;
get_sys_info(&sysinfo);
clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
out_be32(&gur->lbiuiplldcr1, 0x00078080);
if (clkdiv == 16) {
out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
} else if (clkdiv == 8) {
out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
} else if (clkdiv == 4) {
out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
}
setbits_be32(&lbc->lcrr, 0x00030000);
asm("sync;isync;msync");
out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
}
/*
* Initialize SDRAM memory on the Local Bus.
*/
void
sdram_init(void)
{
#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
uint idx;
volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
uint lsdmr_common;
puts(" SDRAM: ");
print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
/*
* Setup SDRAM Base and Option Registers
*/
set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
asm("msync");
out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
asm("msync");
/*
* MPC8548 uses "new" 15-16 style addressing.
*/
lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
lsdmr_common |= LSDMR_BSMA1516;
/*
* Issue PRECHARGE ALL command.
*/
out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
udelay(100);
/*
* Issue 8 AUTO REFRESH commands.
*/
for (idx = 0; idx < 8; idx++) {
out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
udelay(100);
}
/*
* Issue 8 MODE-set command.
*/
out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
udelay(100);
/*
* Issue NORMAL OP command.
*/
out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
udelay(200); /* Overkill. Must wait > 200 bus cycles */
#endif /* enable SDRAM init */
}
#if defined(CONFIG_SYS_DRAM_TEST)
int
testdram(void)
{
uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
printf("Testing DRAM from 0x%08x to 0x%08x\n",
CONFIG_SYS_MEMTEST_START,
CONFIG_SYS_MEMTEST_END);
printf("DRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf ("DRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("DRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf ("DRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("DRAM test passed.\n");
return 0;
}
#endif
#if !defined(CONFIG_SPD_EEPROM)
#define CONFIG_SYS_DDR_CONTROL 0xc300c000
/*************************************************************************
* fixed_sdram init -- doesn't use serial presence detect.
* assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
************************************************************************/
long int fixed_sdram (void)
{
volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
out_be32(&ddr->cs0_bnds, 0x0000007f);
out_be32(&ddr->cs1_bnds, 0x008000ff);
out_be32(&ddr->cs2_bnds, 0x00000000);
out_be32(&ddr->cs3_bnds, 0x00000000);
out_be32(&ddr->cs0_config, 0x80010101);
out_be32(&ddr->cs1_config, 0x80010101);
out_be32(&ddr->cs2_config, 0x00000000);
out_be32(&ddr->cs3_config, 0x00000000);
out_be32(&ddr->timing_cfg_3, 0x00000000);
out_be32(&ddr->timing_cfg_0, 0x00220802);
out_be32(&ddr->timing_cfg_1, 0x38377322);
out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
out_be32(&ddr->sdram_cfg, 0x4300C000);
out_be32(&ddr->sdram_cfg_2, 0x24401000);
out_be32(&ddr->sdram_mode, 0x23C00542);
out_be32(&ddr->sdram_mode_2, 0x00000000);
out_be32(&ddr->sdram_interval, 0x05080100);
out_be32(&ddr->sdram_md_cntl, 0x00000000);
out_be32(&ddr->sdram_data_init, 0x00000000);
out_be32(&ddr->sdram_clk_cntl, 0x03800000);
asm("sync;isync;msync");
udelay(500);
#if defined (CONFIG_DDR_ECC)
/* Enable ECC checking */
out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
#else
out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
#endif
return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
}
#endif
#ifdef CONFIG_PCI1
static struct pci_controller pci1_hose;
#endif /* CONFIG_PCI1 */
#ifdef CONFIG_PCIE1
static struct pci_controller pcie1_hose;
#endif /* CONFIG_PCIE1 */
#ifdef CONFIG_PCI
void
pci_init_board(void)
{
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
struct fsl_pci_info pci_info[2];
u32 devdisr, pordevsr, porpllsr, io_sel;
int first_free_busno = 0;
int num = 0;
#ifdef CONFIG_PCIE1
int pcie_configured;
#endif
devdisr = in_be32(&gur->devdisr);
pordevsr = in_be32(&gur->pordevsr);
porpllsr = in_be32(&gur->porpllsr);
io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
debug(" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
#ifdef CONFIG_PCI1
if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
(pci_32) ? 32 : 64,
(pci_speed == 33000000) ? "33" :
(pci_speed == 66000000) ? "66" : "unknown",
pci_clk_sel ? "sync" : "async",
pci_arb ? "arbiter" : "external-arbiter");
SET_STD_PCI_INFO(pci_info[num], 1);
first_free_busno = fsl_pci_init_port(&pci_info[num++],
&pci1_hose, first_free_busno);
} else {
printf("PCI: disabled\n");
}
puts("\n");
#else
setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
#endif
setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
#ifdef CONFIG_PCIE1
pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
SET_STD_PCIE_INFO(pci_info[num], 1);
printf("PCIE: base address %lx\n", pci_info[num].regs);
first_free_busno = fsl_pci_init_port(&pci_info[num++],
&pcie1_hose, first_free_busno);
} else {
printf("PCIE: disabled\n");
}
puts("\n");
#else
setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
#endif
}
#endif
int board_eth_init(bd_t *bis)
{
tsec_standard_init(bis);
pci_eth_init(bis);
return 0; /* otherwise cpu_eth_init gets run */
}
int last_stage_init(void)
{
return 0;
}
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
#ifdef CONFIG_FSL_PCI_INIT
FT_FSL_PCI_SETUP;
#endif
}
#endif