u-boot/board/korat/korat.c

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/*
* (C) Copyright 2007-2008
* Larry Johnson, lrj@acm.org
*
* (C) Copyright 2006-2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* (C) Copyright 2006
* Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.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 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 <fdt_support.h>
#include <i2c.h>
#include <libfdt.h>
#include <ppc440.h>
#include <asm/bitops.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/ppc4xx-uic.h>
#include <asm/processor.h>
DECLARE_GLOBAL_DATA_PTR;
extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
ulong flash_get_size(ulong base, int banknum);
#if defined(CONFIG_KORAT_PERMANENT)
void korat_buzzer(int const on)
{
if (on) {
out_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x05,
in_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x05) | 0x80);
} else {
out_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x05,
in_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x05) & ~0x80);
}
}
#endif
int board_early_init_f(void)
{
uint32_t sdr0_pfc1, sdr0_pfc2;
uint32_t reg;
int eth;
#if defined(CONFIG_KORAT_PERMANENT)
unsigned mscount;
extern void korat_branch_absolute(uint32_t addr);
for (mscount = 0; mscount < CONFIG_SYS_KORAT_MAN_RESET_MS; ++mscount) {
udelay(1000);
if (gpio_read_in_bit(CONFIG_SYS_GPIO_RESET_PRESSED_)) {
/* This call does not return. */
korat_branch_absolute(
CONFIG_SYS_FLASH1_TOP - 2 * CONFIG_ENV_SECT_SIZE - 4);
}
}
korat_buzzer(1);
while (!gpio_read_in_bit(CONFIG_SYS_GPIO_RESET_PRESSED_))
udelay(1000);
korat_buzzer(0);
#endif
mtdcr(ebccfga, xbcfg);
mtdcr(ebccfgd, 0xb8400000);
/*
* Setup the interrupt controller polarities, triggers, etc.
*/
mtdcr(uic0sr, 0xffffffff); /* clear all */
mtdcr(uic0er, 0x00000000); /* disable all */
mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
mtdcr(uic0pr, 0xfffff7ff); /* per ref-board manual */
mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(uic0sr, 0xffffffff); /* clear all */
mtdcr(uic1sr, 0xffffffff); /* clear all */
mtdcr(uic1er, 0x00000000); /* disable all */
mtdcr(uic1cr, 0x00000000); /* all non-critical */
mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(uic1sr, 0xffffffff); /* clear all */
mtdcr(uic2sr, 0xffffffff); /* clear all */
mtdcr(uic2er, 0x00000000); /* disable all */
mtdcr(uic2cr, 0x00000000); /* all non-critical */
mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(uic2sr, 0xffffffff); /* clear all */
/*
* Take sim card reader and CF controller out of reset. Also enable PHY
* auto-detect until board-specific PHY resets are available.
*/
out_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x02, 0xC0);
/* Configure the two Ethernet PHYs. For each PHY, configure for fiber
* if the SFP module is present, and for copper if it is not present.
*/
for (eth = 0; eth < 2; ++eth) {
if (gpio_read_in_bit(CONFIG_SYS_GPIO_SFP0_PRESENT_ + eth)) {
/* SFP module not present: configure PHY for copper. */
/* Set PHY to autonegotate 10 MB, 100MB, or 1 GB */
out_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x03,
in_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x03) |
0x06 << (4 * eth));
} else {
/* SFP module present: configure PHY for fiber and
enable output */
gpio_write_bit(CONFIG_SYS_GPIO_PHY0_FIBER_SEL + eth, 1);
gpio_write_bit(CONFIG_SYS_GPIO_SFP0_TX_EN_ + eth, 0);
}
}
/* enable Ethernet: set GPIO45 and GPIO46 to 1 */
gpio_write_bit(CONFIG_SYS_GPIO_PHY0_EN, 1);
gpio_write_bit(CONFIG_SYS_GPIO_PHY1_EN, 1);
/* Wait 1 ms, then enable Fiber signal detect to PHYs. */
udelay(1000);
out_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x03,
in_8((u8 *) CONFIG_SYS_CPLD_BASE + 0x03) | 0x88);
/* select Ethernet (and optionally IIC1) pins */
mfsdr(SDR0_PFC1, sdr0_pfc1);
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
SDR0_PFC1_SELECT_CONFIG_4;
#ifdef CONFIG_I2C_MULTI_BUS
sdr0_pfc1 |= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL);
#endif
mfsdr(SDR0_PFC2, sdr0_pfc2);
sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
SDR0_PFC2_SELECT_CONFIG_4;
mtsdr(SDR0_PFC2, sdr0_pfc2);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/* PCI arbiter enabled */
mfsdr(sdr_pci0, reg);
mtsdr(sdr_pci0, 0x80000000 | reg);
return 0;
}
/*
* The boot flash on CS0 normally has its write-enable pin disabled, and so will
* not respond to CFI commands. This routine therefore fills in the flash
* information for the boot flash. (The flash at CS1 operates normally.)
*/
ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info)
{
uint32_t addr;
int i;
if (1 != banknum)
return 0;
info->size = CONFIG_SYS_FLASH0_SIZE;
info->sector_count = CONFIG_SYS_FLASH0_SIZE / 0x20000;
info->flash_id = 0x01000000;
info->portwidth = 2;
info->chipwidth = 2;
info->buffer_size = 32;
info->erase_blk_tout = 16384;
info->write_tout = 2;
info->buffer_write_tout = 5;
info->vendor = 2;
info->cmd_reset = 0x00F0;
info->interface = 2;
info->legacy_unlock = 0;
info->manufacturer_id = 1;
info->device_id = 0x007E;
#if CONFIG_SYS_FLASH0_SIZE == 0x01000000
info->device_id2 = 0x2101;
#elif CONFIG_SYS_FLASH0_SIZE == 0x04000000
info->device_id2 = 0x2301;
#else
#error Unable to set device_id2 for current CONFIG_SYS_FLASH0_SIZE
#endif
info->ext_addr = 0x0040;
info->cfi_version = 0x3133;
info->cfi_offset = 0x0055;
info->addr_unlock1 = 0x00000555;
info->addr_unlock2 = 0x000002AA;
info->name = "CFI conformant";
for (i = 0, addr = -info->size;
i < info->sector_count;
++i, addr += 0x20000) {
info->start[i] = addr;
info->protect[i] = 0x00;
}
return 1;
}
static int man_data_read(unsigned int addr)
{
/*
* Read an octet of data from address "addr" in the manufacturer's
* information serial EEPROM, or -1 on error.
*/
u8 data[2];
if (0 != i2c_probe(MAN_DATA_EEPROM_ADDR) ||
0 != i2c_read(MAN_DATA_EEPROM_ADDR, addr, 1, data, 1)) {
debug("man_data_read(0x%02X) failed\n", addr);
return -1;
}
debug("man_info_read(0x%02X) returned 0x%02X\n", addr, data[0]);
return data[0];
}
static unsigned int man_data_field_addr(unsigned int const field)
{
/*
* The manufacturer's information serial EEPROM contains a sequence of
* zero-delimited fields. Return the starting address of field "field",
* or 0 on error.
*/
unsigned addr, i;
if (0 == field || 'A' != man_data_read(0) || '\0' != man_data_read(1))
/* Only format "A" is currently supported */
return 0;
for (addr = 2, i = 1; i < field && addr < 256; ++addr) {
if ('\0' == man_data_read(addr))
++i;
}
return (addr < 256) ? addr : 0;
}
static char *man_data_read_field(char s[], unsigned const field,
unsigned const length)
{
/*
* Place the null-terminated contents of field "field" of length
* "length" from the manufacturer's information serial EEPROM into
* string "s[length + 1]" and return a pointer to s, or return 0 on
* error. In either case the original contents of s[] is not preserved.
*/
unsigned addr, i;
addr = man_data_field_addr(field);
if (0 == addr || addr + length >= 255)
return 0;
for (i = 0; i < length; ++i) {
int const c = man_data_read(addr++);
if (c <= 0)
return 0;
s[i] = (char)c;
}
if (0 != man_data_read(addr))
return 0;
s[i] = '\0';
return s;
}
static void set_serial_number(void)
{
/*
* If the environmental variable "serial#" is not set, try to set it
* from the manufacturer's information serial EEPROM.
*/
char s[MAN_INFO_LENGTH + MAN_MAC_ADDR_LENGTH + 2];
if (getenv("serial#"))
return;
if (!man_data_read_field(s, MAN_INFO_FIELD, MAN_INFO_LENGTH))
return;
s[MAN_INFO_LENGTH] = '-';
if (!man_data_read_field(s + MAN_INFO_LENGTH + 1, MAN_MAC_ADDR_FIELD,
MAN_MAC_ADDR_LENGTH))
return;
setenv("serial#", s);
}
static void set_mac_addresses(void)
{
/*
* If the environmental variables "ethaddr" and/or "eth1addr" are not
* set, try to set them from the manufacturer's information serial
* EEPROM.
*/
#if MAN_MAC_ADDR_LENGTH % 2 != 0
#error MAN_MAC_ADDR_LENGTH must be an even number
#endif
char s[(3 * MAN_MAC_ADDR_LENGTH) / 2];
char *src;
char *dst;
if (0 != getenv("ethaddr") && 0 != getenv("eth1addr"))
return;
if (0 == man_data_read_field(s + (MAN_MAC_ADDR_LENGTH / 2) - 1,
MAN_MAC_ADDR_FIELD, MAN_MAC_ADDR_LENGTH))
return;
for (src = s + (MAN_MAC_ADDR_LENGTH / 2) - 1, dst = s; src != dst;) {
*dst++ = *src++;
*dst++ = *src++;
*dst++ = ':';
}
if (0 == getenv("ethaddr"))
setenv("ethaddr", s);
if (0 == getenv("eth1addr")) {
++s[((3 * MAN_MAC_ADDR_LENGTH) / 2) - 2];
setenv("eth1addr", s);
}
}
int misc_init_r(void)
{
uint32_t pbcr;
int size_val;
uint32_t reg;
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
unsigned long sdr0_pfc1;
uint32_t const flash1_size = gd->bd->bi_flashsize - CONFIG_SYS_FLASH0_SIZE;
char const *const act = getenv("usbact");
/*
* Re-do FLASH1 sizing and adjust flash start and offset.
*/
gd->bd->bi_flashstart = CONFIG_SYS_FLASH1_TOP - flash1_size;
gd->bd->bi_flashoffset = 0;
mtdcr(ebccfga, pb1cr);
pbcr = mfdcr(ebccfgd);
size_val = ffs(flash1_size) - 21;
pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
mtdcr(ebccfga, pb1cr);
mtdcr(ebccfgd, pbcr);
/*
* Re-check to get correct base address
*/
flash_get_size(gd->bd->bi_flashstart, 0);
/*
* Re-do FLASH1 sizing and adjust flash offset to reserve space for
* environment
*/
gd->bd->bi_flashoffset =
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - CONFIG_SYS_FLASH1_ADDR;
mtdcr(ebccfga, pb1cr);
pbcr = mfdcr(ebccfgd);
size_val = ffs(gd->bd->bi_flashsize - CONFIG_SYS_FLASH0_SIZE) - 21;
pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
mtdcr(ebccfga, pb1cr);
mtdcr(ebccfgd, pbcr);
/* Monitor protection ON by default */
#if defined(CONFIG_KORAT_PERMANENT)
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
flash_info + 1);
#else
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
flash_info);
#endif
/* Env protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
flash_info);
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
flash_info);
/*
* USB suff...
*/
if (act == NULL || strcmp(act, "hostdev") == 0) {
/* SDR Setting */
mfsdr(SDR0_PFC1, sdr0_pfc1);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
/*
* An 8-bit/60MHz interface is the only possible alternative
* when connecting the Device to the PHY
*/
usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;
/*
* To enable the USB 2.0 Device function
* through the UTMI interface
*/
usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION;
sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL;
mtsdr(SDR0_PFC1, sdr0_pfc1);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2H0CR, usb2h0cr);
/* clear resets */
udelay(1000);
mtsdr(SDR0_SRST1, 0x00000000);
udelay(1000);
mtsdr(SDR0_SRST0, 0x00000000);
printf("USB: Host(int phy) Device(ext phy)\n");
} else if (strcmp(act, "dev") == 0) {
/*-------------------PATCH-------------------------------*/
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
udelay(1000);
mtsdr(SDR0_SRST1, 0x672c6000);
udelay(1000);
mtsdr(SDR0_SRST0, 0x00000080);
udelay(1000);
mtsdr(SDR0_SRST1, 0x60206000);
*(unsigned int *)(0xe0000350) = 0x00000001;
udelay(1000);
mtsdr(SDR0_SRST1, 0x60306000);
/*-------------------PATCH-------------------------------*/
/* SDR Setting */
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
mfsdr(SDR0_PFC1, sdr0_pfc1);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;
usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;
usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION;
sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;
mtsdr(SDR0_USB2H0CR, usb2h0cr);
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/* clear resets */
udelay(1000);
mtsdr(SDR0_SRST1, 0x00000000);
udelay(1000);
mtsdr(SDR0_SRST0, 0x00000000);
printf("USB: Device(int phy)\n");
}
mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
mtsdr(SDR0_SRST1, reg);
/*
* Clear PLB4A0_ACR[WRP]
* This fix will make the MAL burst disabling patch for the Linux
* EMAC driver obsolete.
*/
reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
mtdcr(plb4_acr, reg);
set_serial_number();
set_mac_addresses();
gpio_write_bit(CONFIG_SYS_GPIO_ATMEGA_RESET_, 1);
return 0;
}
int checkboard(void)
{
char const *const s = getenv("serial#");
u8 const rev = in_8((u8 *) CONFIG_SYS_CPLD_BASE + 0);
printf("Board: Korat, Rev. %X", rev);
if (s)
printf(", serial# %s", s);
printf(".\n Ethernet PHY 0: ");
if (gpio_read_out_bit(CONFIG_SYS_GPIO_PHY0_FIBER_SEL))
printf("fiber");
else
printf("copper");
printf(", PHY 1: ");
if (gpio_read_out_bit(CONFIG_SYS_GPIO_PHY1_FIBER_SEL))
printf("fiber");
else
printf("copper");
printf(".\n");
#if defined(CONFIG_KORAT_PERMANENT)
printf(" Executing permanent copy of U-Boot.\n");
#endif
return 0;
}
#if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
/*
* Assign interrupts to PCI devices.
*/
void korat_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIRQ2);
}
#endif
/*
* pci_pre_init
*
* This routine is called just prior to registering the hose and gives
* the board the opportunity to check things. Returning a value of zero
* indicates that things are bad & PCI initialization should be aborted.
*
* Different boards may wish to customize the pci controller structure
* (add regions, override default access routines, etc) or perform
* certain pre-initialization actions.
*/
#if defined(CONFIG_PCI)
int pci_pre_init(struct pci_controller *hose)
{
unsigned long addr;
/*
* Set priority for all PLB3 devices to 0.
* Set PLB3 arbiter to fair mode.
*/
mfsdr(sdr_amp1, addr);
mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb3_acr);
mtdcr(plb3_acr, addr | 0x80000000);
/*
* Set priority for all PLB4 devices to 0.
*/
mfsdr(sdr_amp0, addr);
mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
mtdcr(plb4_acr, addr);
/*
* Set Nebula PLB4 arbiter to fair mode.
*/
/* Segment0 */
addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
mtdcr(plb0_acr, addr);
/* Segment1 */
addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
mtdcr(plb1_acr, addr);
#if defined(CONFIG_PCI_PNP)
hose->fixup_irq = korat_pci_fixup_irq;
#endif
return 1;
}
#endif /* defined(CONFIG_PCI) */
/*
* pci_target_init
*
* The bootstrap configuration provides default settings for the pci
* inbound map (PIM). But the bootstrap config choices are limited and
* may not be sufficient for a given board.
*/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller *hose)
{
/*
* Set up Direct MMIO registers
*/
/*
* PowerPC440EPX PCI Master configuration.
* Map one 1Gig range of PLB/processor addresses to PCI memory space.
* PLB address 0x80000000-0xBFFFFFFF
* ==> PCI address 0x80000000-0xBFFFFFFF
* Use byte reversed out routines to handle endianess.
* Make this region non-prefetchable.
*/
out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute */
/* - disabled b4 setting */
out32r(PCIX0_PMM0LA, CONFIG_SYS_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIX0_PMM0PCILA,
CONFIG_SYS_PCI_MEMBASE); /* PMM0 PCI Low Address */
out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, */
/* and enable region */
out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute */
/* - disabled b4 setting */
out32r(PCIX0_PMM1LA,
CONFIG_SYS_PCI_MEMBASE + 0x20000000); /* PMM0 Local Address */
out32r(PCIX0_PMM1PCILA,
CONFIG_SYS_PCI_MEMBASE + 0x20000000); /* PMM0 PCI Low Address */
out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, */
/* and enable region */
out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
/*
* Set up Configuration registers
*/
/* Program the board's subsystem id/vendor id */
pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
CONFIG_SYS_PCI_SUBSYS_VENDORID);
pci_write_config_word(0, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_ID);
/* Configure command register as bus master */
pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
/* 240nS PCI clock */
pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
/* No error reporting */
pci_write_config_word(0, PCI_ERREN, 0);
pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
/*
* Set up Configuration registers for on-board NEC uPD720101 USB
* controller.
*/
pci_write_config_dword(PCI_BDF(0x0, 0xC, 0x0), 0xE4, 0x00000020);
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
void pci_master_init(struct pci_controller *hose)
{
unsigned short temp_short;
/*
* Write the PowerPC440 EP PCI Configuration regs.
* Enable PowerPC440 EP to be a master on the PCI bus (PMM).
* Enable PowerPC440 EP to act as a PCI memory target (PTM).
*/
pci_read_config_word(0, PCI_COMMAND, &temp_short);
pci_write_config_word(0, PCI_COMMAND,
temp_short | PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY);
}
#endif
/*
* is_pci_host
*
* This routine is called to determine if a pci scan should be
* performed. With various hardware environments (especially cPCI and
* PPMC) it's insufficient to depend on the state of the arbiter enable
* bit in the strap register, or generic host/adapter assumptions.
*
* Rather than hard-code a bad assumption in the general 440 code, the
* 440 pci code requires the board to decide at runtime.
*
* Return 0 for adapter mode, non-zero for host (monarch) mode.
*/
#if defined(CONFIG_PCI)
int is_pci_host(struct pci_controller *hose)
{
/* Korat is always configured as host. */
return (1);
}
#endif /* defined(CONFIG_PCI) */
#if defined(CONFIG_POST)
/*
* Returns 1 if keys pressed to start the power-on long-running tests
* Called from board_init_f().
*/
int post_hotkeys_pressed(void)
{
return 0; /* No hotkeys supported */
}
#endif /* CONFIG_POST */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
u32 val[4];
int rc;
ft_cpu_setup(blob, bd);
/* Fixup NOR mapping */
val[0] = 1; /* chip select number */
val[1] = 0; /* always 0 */
val[2] = gd->bd->bi_flashstart;
val[3] = gd->bd->bi_flashsize - CONFIG_SYS_FLASH0_SIZE;
rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
val, sizeof(val), 1);
if (rc)
printf("Unable to update property NOR mapping, err=%s\n",
fdt_strerror(rc));
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */