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u-boot/board/sbc8641d/sbc8641d.c
Peter Tyser 4ef630df77 86xx: Reset update 
Update the 86xx reset sequence to try executing a board-specific reset
function.  If the board-specific reset is not implemented or does not
succeed, then assert #HRESET_REQ.  Using #HRESET_REQ is a more standard
reset procedure than the previous method and allows all board
peripherals to be reset if needed.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2009-02-16 18:05:56 -06:00

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/*
* Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
* Copyright 2007 Embedded Specialties, Inc.
* Joe Hamman joe.hamman@embeddedspecialties.com
*
* Copyright 2004 Freescale Semiconductor.
* Jeff Brown
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
*
* (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 <command.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
#include <asm/immap_fsl_pci.h>
#include <asm/fsl_ddr_sdram.h>
#include <libfdt.h>
#include <fdt_support.h>
long int fixed_sdram (void);
int board_early_init_f (void)
{
return 0;
}
int checkboard (void)
{
puts ("Board: Wind River SBC8641D\n");
return 0;
}
phys_size_t initdram (int board_type)
{
long dram_size = 0;
#if defined(CONFIG_SPD_EEPROM)
dram_size = fsl_ddr_sdram();
#else
dram_size = fixed_sdram ();
#endif
#if defined(CONFIG_SYS_RAMBOOT)
puts (" DDR: ");
return dram_size;
#endif
puts (" DDR: ");
return dram_size;
}
#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;
puts ("SDRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
puts ("SDRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
puts ("SDRAM test passed.\n");
return 0;
}
#endif
#if !defined(CONFIG_SPD_EEPROM)
/*
* Fixed sdram init -- doesn't use serial presence detect.
*/
long int fixed_sdram (void)
{
#if !defined(CONFIG_SYS_RAMBOOT)
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS;
ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS;
ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG;
ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG;
ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
ddr->sdram_cfg_1 = CONFIG_SYS_DDR_CFG_1A;
ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2;
ddr->sdram_mode_1 = CONFIG_SYS_DDR_MODE_1;
ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
ddr->sdram_mode_cntl = CONFIG_SYS_DDR_MODE_CTL;
ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
asm ("sync;isync");
udelay (500);
ddr->sdram_cfg_1 = CONFIG_SYS_DDR_CFG_1B;
asm ("sync; isync");
udelay (500);
ddr = &immap->im_ddr2;
ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS;
ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS;
ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS;
ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG;
ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG;
ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG;
ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG;
ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH;
ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0;
ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1;
ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2;
ddr->sdram_cfg_1 = CONFIG_SYS_DDR2_CFG_1A;
ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2;
ddr->sdram_mode_1 = CONFIG_SYS_DDR2_MODE_1;
ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2;
ddr->sdram_mode_cntl = CONFIG_SYS_DDR2_MODE_CTL;
ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL;
ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT;
ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL;
asm ("sync;isync");
udelay (500);
ddr->sdram_cfg_1 = CONFIG_SYS_DDR2_CFG_1B;
asm ("sync; isync");
udelay (500);
#endif
return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
}
#endif /* !defined(CONFIG_SPD_EEPROM) */
#if defined(CONFIG_PCI)
/*
* Initialize PCI Devices, report devices found.
*/
#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_fsl86xxads_config_table[] = {
{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_IDSEL_NUMBER, PCI_ANY_ID,
pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
PCI_ENET0_MEMADDR,
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}},
{}
};
#endif
static struct pci_controller pci1_hose = {
#ifndef CONFIG_PCI_PNP
config_table:pci_mpc86xxcts_config_table
#endif
};
#endif /* CONFIG_PCI */
#ifdef CONFIG_PCI2
static struct pci_controller pci2_hose;
#endif /* CONFIG_PCI2 */
int first_free_busno = 0;
extern int fsl_pci_setup_inbound_windows(struct pci_region *r);
extern void fsl_pci_init(struct pci_controller *hose);
void pci_init_board(void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
uint devdisr = gur->devdisr;
uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
>> MPC8641_PORDEVSR_IO_SEL_SHIFT;
#ifdef CONFIG_PCI1
{
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;
#ifdef DEBUG
uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
>> MPC8641_PORBMSR_HA_SHIFT;
uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
#endif
if ((io_sel == 2 || io_sel == 3 || io_sel == 5
|| io_sel == 6 || io_sel == 7 || io_sel == 0xF)
&& !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
if (pci->pme_msg_det) {
pci->pme_msg_det = 0xffffffff;
debug(" with errors. Clearing. Now 0x%08x",
pci->pme_msg_det);
}
debug("\n");
/* inbound */
r += fsl_pci_setup_inbound_windows(r);
/* 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;
pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
fsl_pci_init(hose);
first_free_busno=hose->last_busno+1;
printf (" PCI-EXPRESS 1 on bus %02x - %02x\n",
hose->first_busno,hose->last_busno);
} else {
puts("PCI-EXPRESS 1: Disabled\n");
}
}
#else
puts("PCI-EXPRESS1: Disabled\n");
#endif /* CONFIG_PCI1 */
#ifdef CONFIG_PCI2
{
volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI2_ADDR;
struct pci_controller *hose = &pci2_hose;
struct pci_region *r = hose->regions;
/* inbound */
r += fsl_pci_setup_inbound_windows(r);
/* outbound memory */
pci_set_region(r++,
CONFIG_SYS_PCI2_MEM_BUS,
CONFIG_SYS_PCI2_MEM_PHYS,
CONFIG_SYS_PCI2_MEM_SIZE,
PCI_REGION_MEM);
/* outbound io */
pci_set_region(r++,
CONFIG_SYS_PCI2_IO_BUS,
CONFIG_SYS_PCI2_IO_PHYS,
CONFIG_SYS_PCI2_IO_SIZE,
PCI_REGION_IO);
hose->region_count = r - hose->regions;
hose->first_busno=first_free_busno;
pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
fsl_pci_init(hose);
first_free_busno=hose->last_busno+1;
printf (" PCI-EXPRESS 2 on bus %02x - %02x\n",
hose->first_busno,hose->last_busno);
}
#else
puts("PCI-EXPRESS 2: Disabled\n");
#endif /* CONFIG_PCI2 */
}
#if defined(CONFIG_OF_BOARD_SETUP)
extern void ft_fsl_pci_setup(void *blob, const char *pci_alias,
struct pci_controller *hose);
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_PCI2
ft_fsl_pci_setup(blob, "pci1", &pci2_hose);
#endif
}
#endif
void sbc8641d_reset_board (void)
{
puts ("Resetting board....\n");
}
/*
* get_board_sys_clk
* Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
*/
unsigned long get_board_sys_clk (ulong dummy)
{
int i;
ulong val = 0;
i = 5;
i &= 0x07;
switch (i) {
case 0:
val = 33000000;
break;
case 1:
val = 40000000;
break;
case 2:
val = 50000000;
break;
case 3:
val = 66000000;
break;
case 4:
val = 83000000;
break;
case 5:
val = 100000000;
break;
case 6:
val = 134000000;
break;
case 7:
val = 166000000;
break;
}
return val;
}
void board_reset(void)
{
#ifdef CONFIG_SYS_RESET_ADDRESS
ulong addr = CONFIG_SYS_RESET_ADDRESS;
/* flush and disable I/D cache */
__asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
__asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
__asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
__asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
__asm__ __volatile__ ("sync");
__asm__ __volatile__ ("mtspr 1008, 4");
__asm__ __volatile__ ("isync");
__asm__ __volatile__ ("sync");
__asm__ __volatile__ ("mtspr 1008, 5");
__asm__ __volatile__ ("isync");
__asm__ __volatile__ ("sync");
/*
* SRR0 has system reset vector, SRR1 has default MSR value
* rfi restores MSR from SRR1 and sets the PC to the SRR0 value
*/
__asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
__asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
__asm__ __volatile__ ("mtspr 27, 4");
__asm__ __volatile__ ("rfi");
#endif
}
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