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u-boot/board/freescale/mpc8568mds/mpc8568mds.c
Kumar Gala 3e7b6c1f2d ppc/8xxx: Refactor code to determine if PCI is enabled & agent/host 
Refactor the code into a simple bitmask lookup table that determines if
a given PCI controller is enabled and if its in host/root-complex or
agent/end-point mode.

Each processor in the PQ3/MPC86xx family specified different encodings
for the cfg_host_agt[] and cfg_IO_ports[] boot strapping signals.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-08 09:10:07 -05:00

486 lines
11 KiB
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/*
* Copyright 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/mmu.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_pci.h>
#include <asm/fsl_ddr_sdram.h>
#include <spd_sdram.h>
#include <i2c.h>
#include <ioports.h>
#include <libfdt.h>
#include <fdt_support.h>
#include "bcsr.h"
const qe_iop_conf_t qe_iop_conf_tab[] = {
/* GETH1 */
{4, 10, 1, 0, 2}, /* TxD0 */
{4, 9, 1, 0, 2}, /* TxD1 */
{4, 8, 1, 0, 2}, /* TxD2 */
{4, 7, 1, 0, 2}, /* TxD3 */
{4, 23, 1, 0, 2}, /* TxD4 */
{4, 22, 1, 0, 2}, /* TxD5 */
{4, 21, 1, 0, 2}, /* TxD6 */
{4, 20, 1, 0, 2}, /* TxD7 */
{4, 15, 2, 0, 2}, /* RxD0 */
{4, 14, 2, 0, 2}, /* RxD1 */
{4, 13, 2, 0, 2}, /* RxD2 */
{4, 12, 2, 0, 2}, /* RxD3 */
{4, 29, 2, 0, 2}, /* RxD4 */
{4, 28, 2, 0, 2}, /* RxD5 */
{4, 27, 2, 0, 2}, /* RxD6 */
{4, 26, 2, 0, 2}, /* RxD7 */
{4, 11, 1, 0, 2}, /* TX_EN */
{4, 24, 1, 0, 2}, /* TX_ER */
{4, 16, 2, 0, 2}, /* RX_DV */
{4, 30, 2, 0, 2}, /* RX_ER */
{4, 17, 2, 0, 2}, /* RX_CLK */
{4, 19, 1, 0, 2}, /* GTX_CLK */
{1, 31, 2, 0, 3}, /* GTX125 */
/* GETH2 */
{5, 10, 1, 0, 2}, /* TxD0 */
{5, 9, 1, 0, 2}, /* TxD1 */
{5, 8, 1, 0, 2}, /* TxD2 */
{5, 7, 1, 0, 2}, /* TxD3 */
{5, 23, 1, 0, 2}, /* TxD4 */
{5, 22, 1, 0, 2}, /* TxD5 */
{5, 21, 1, 0, 2}, /* TxD6 */
{5, 20, 1, 0, 2}, /* TxD7 */
{5, 15, 2, 0, 2}, /* RxD0 */
{5, 14, 2, 0, 2}, /* RxD1 */
{5, 13, 2, 0, 2}, /* RxD2 */
{5, 12, 2, 0, 2}, /* RxD3 */
{5, 29, 2, 0, 2}, /* RxD4 */
{5, 28, 2, 0, 2}, /* RxD5 */
{5, 27, 2, 0, 3}, /* RxD6 */
{5, 26, 2, 0, 2}, /* RxD7 */
{5, 11, 1, 0, 2}, /* TX_EN */
{5, 24, 1, 0, 2}, /* TX_ER */
{5, 16, 2, 0, 2}, /* RX_DV */
{5, 30, 2, 0, 2}, /* RX_ER */
{5, 17, 2, 0, 2}, /* RX_CLK */
{5, 19, 1, 0, 2}, /* GTX_CLK */
{1, 31, 2, 0, 3}, /* GTX125 */
{4, 6, 3, 0, 2}, /* MDIO */
{4, 5, 1, 0, 2}, /* MDC */
/* UART1 */
{2, 0, 1, 0, 2}, /* UART_SOUT1 */
{2, 1, 1, 0, 2}, /* UART_RTS1 */
{2, 2, 2, 0, 2}, /* UART_CTS1 */
{2, 3, 2, 0, 2}, /* UART_SIN1 */
{0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
};
void local_bus_init(void);
void sdram_init(void);
int board_early_init_f (void)
{
/*
* Initialize local bus.
*/
local_bus_init ();
enable_8568mds_duart();
enable_8568mds_flash_write();
#if defined(CONFIG_UEC_ETH1) || defined(CONFIG_UEC_ETH2)
reset_8568mds_uccs();
#endif
#if defined(CONFIG_QE) && !defined(CONFIG_eTSEC_MDIO_BUS)
enable_8568mds_qe_mdio();
#endif
#ifdef CONFIG_SYS_I2C2_OFFSET
/* Enable I2C2_SCL and I2C2_SDA */
volatile struct par_io *port_c;
port_c = (struct par_io*)(CONFIG_SYS_IMMR + 0xe0140);
port_c->cpdir2 |= 0x0f000000;
port_c->cppar2 &= ~0x0f000000;
port_c->cppar2 |= 0x0a000000;
#endif
return 0;
}
int checkboard (void)
{
printf ("Board: 8568 MDS\n");
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);
gur->ddrdllcr = 0x81000000;
asm("sync;isync;msync");
udelay(200);
}
#endif
dram_size = fsl_ddr_sdram();
dram_size = setup_ddr_tlbs(dram_size / 0x100000);
dram_size *= 0x100000;
/*
* 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 ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
uint clkdiv;
uint lbc_hz;
sys_info_t sysinfo;
get_sys_info(&sysinfo);
clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2;
lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
gur->lbiuiplldcr1 = 0x00078080;
if (clkdiv == 16) {
gur->lbiuiplldcr0 = 0x7c0f1bf0;
} else if (clkdiv == 8) {
gur->lbiuiplldcr0 = 0x6c0f1bf0;
} else if (clkdiv == 4) {
gur->lbiuiplldcr0 = 0x5c0f1bf0;
}
lbc->lcrr |= 0x00030000;
asm("sync;isync;msync");
}
/*
* Initialize SDRAM memory on the Local Bus.
*/
void
sdram_init(void)
{
#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
uint idx;
volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_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
*/
lbc->or2 = CONFIG_SYS_OR2_PRELIM;
asm("msync");
lbc->br2 = CONFIG_SYS_BR2_PRELIM;
asm("msync");
lbc->lbcr = CONFIG_SYS_LBC_LBCR;
asm("msync");
lbc->lsrt = CONFIG_SYS_LBC_LSRT;
lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
asm("msync");
/*
* MPC8568 uses "new" 15-16 style addressing.
*/
lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
lsdmr_common |= LSDMR_BSMA1516;
/*
* Issue PRECHARGE ALL command.
*/
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++) {
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.
*/
lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
udelay(100);
/*
* Issue NORMAL OP command.
*/
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_PCI)
#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_mpc8568mds_config_table[] = {
{
PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
pci_cfgfunc_config_device,
{PCI_ENET0_IOADDR,
PCI_ENET0_MEMADDR,
PCI_COMMON_MEMORY | PCI_COMMAND_MASTER}
},
{}
};
#endif
static struct pci_controller pci1_hose = {
#ifndef CONFIG_PCI_PNP
config_table: pci_mpc8568mds_config_table,
#endif
};
#endif /* CONFIG_PCI */
#ifdef CONFIG_PCIE1
static struct pci_controller pcie1_hose;
#endif /* CONFIG_PCIE1 */
int first_free_busno = 0;
/*
* pib_init() -- Initialize the PCA9555 IO expander on the PIB board
*/
void
pib_init(void)
{
u8 val8, orig_i2c_bus;
/*
* Assign PIB PMC2/3 to PCI bus
*/
/*switch temporarily to I2C bus #2 */
orig_i2c_bus = i2c_get_bus_num();
i2c_set_bus_num(1);
val8 = 0x00;
i2c_write(0x23, 0x6, 1, &val8, 1);
i2c_write(0x23, 0x7, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x23, 0x2, 1, &val8, 1);
i2c_write(0x23, 0x3, 1, &val8, 1);
val8 = 0x00;
i2c_write(0x26, 0x6, 1, &val8, 1);
val8 = 0x34;
i2c_write(0x26, 0x7, 1, &val8, 1);
val8 = 0xf9;
i2c_write(0x26, 0x2, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x26, 0x3, 1, &val8, 1);
val8 = 0x00;
i2c_write(0x27, 0x6, 1, &val8, 1);
i2c_write(0x27, 0x7, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x27, 0x2, 1, &val8, 1);
val8 = 0xef;
i2c_write(0x27, 0x3, 1, &val8, 1);
asm("eieio");
}
#ifdef CONFIG_PCI
void
pci_init_board(void)
{
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
#ifdef CONFIG_PCI1
{
pib_init();
volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
struct pci_controller *hose = &pci1_hose;
struct pci_region *r = hose->regions;
uint pci_32 = 1; /* PORDEVSR[15] */
uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
uint pci_speed = 66666000;
if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
(pci_32) ? 32 : 64,
(pci_speed == 33333000) ? "33" :
(pci_speed == 66666000) ? "66" : "unknown",
pci_clk_sel ? "sync" : "async",
pci_agent ? "agent" : "host",
pci_arb ? "arbiter" : "external-arbiter"
);
/* outbound memory */
pci_set_region(r++,
CONFIG_SYS_PCI1_MEM_BUS,
CONFIG_SYS_PCI1_MEM_PHYS,
CONFIG_SYS_PCI1_MEM_SIZE,
PCI_REGION_MEM);
/* outbound io */
pci_set_region(r++,
CONFIG_SYS_PCI1_IO_BUS,
CONFIG_SYS_PCI1_IO_PHYS,
CONFIG_SYS_PCI1_IO_SIZE,
PCI_REGION_IO);
hose->region_count = r - hose->regions;
hose->first_busno = first_free_busno;
fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
first_free_busno = hose->last_busno+1;
printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
} else {
printf (" PCI: disabled\n");
}
}
#else
gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
#endif
#ifdef CONFIG_PCIE1
{
volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
struct pci_controller *hose = &pcie1_hose;
int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
struct pci_region *r = hose->regions;
int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
printf ("\n PCIE connected to slot as %s (base address %x)",
pcie_ep ? "End Point" : "Root Complex",
(uint)pci);
if (pci->pme_msg_det) {
pci->pme_msg_det = 0xffffffff;
debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
}
printf ("\n");
/* outbound memory */
pci_set_region(r++,
CONFIG_SYS_PCIE1_MEM_BUS,
CONFIG_SYS_PCIE1_MEM_PHYS,
CONFIG_SYS_PCIE1_MEM_SIZE,
PCI_REGION_MEM);
/* outbound io */
pci_set_region(r++,
CONFIG_SYS_PCIE1_IO_BUS,
CONFIG_SYS_PCIE1_IO_PHYS,
CONFIG_SYS_PCIE1_IO_SIZE,
PCI_REGION_IO);
hose->region_count = r - hose->regions;
hose->first_busno=first_free_busno;
fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
printf ("PCIE on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
first_free_busno=hose->last_busno+1;
} else {
printf (" PCIE: disabled\n");
}
}
#else
gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
#endif
}
#endif /* CONFIG_PCI */
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
#ifdef CONFIG_PCI1
ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
#endif
#ifdef CONFIG_PCIE1
ft_fsl_pci_setup(blob, "pci1", &pcie1_hose);
#endif
}
#endif
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