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uboot-1.1.4-kirkwood/board/amcc/bamboo/bamboo.c
Olaf Rempel f69754bccc u-boot 1.1.4
2024-01-07 23:57:24 +01:00

2090 lines
70 KiB
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/*
* (C) Copyright 2005
* Stefan Roese, DENX Software Engineering, sr@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 <common.h>
#include <asm/processor.h>
#include <spd_sdram.h>
#include <ppc440.h>
#include "bamboo.h"
void ext_bus_cntlr_init(void);
void configure_ppc440ep_pins(void);
int is_nand_selected(void);
unsigned char cfg_simulate_spd_eeprom[128];
gpio_param_s gpio_tab[GPIO_GROUP_MAX][GPIO_MAX];
#if 0
{ /* GPIO Alternate1 Alternate2 Alternate3 */
{
/* GPIO Core 0 */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_0 -> EBC_ADDR(7) DMA_REQ(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_1 -> EBC_ADDR(6) DMA_ACK(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_2 -> EBC_ADDR(5) DMA_EOT/TC(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_3 -> EBC_ADDR(4) DMA_REQ(3) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_4 -> EBC_ADDR(3) DMA_ACK(3) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_5 ................. */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_6 -> EBC_CS_N(1) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_7 -> EBC_CS_N(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_8 -> EBC_CS_N(3) */
{ GPIO0_BASE, GPIO_DIS, GPIO_ALT1 }, /* GPIO0_9 -> EBC_CS_N(4) */
{ GPIO0_BASE, GPIO_OUT, GPIO_ALT1 }, /* GPIO0_10 -> EBC_CS_N(5) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_11 -> EBC_BUS_ERR */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_12 -> ZII_p0Rxd(0) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_13 -> ZII_p0Rxd(1) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_14 -> ZII_p0Rxd(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_15 -> ZII_p0Rxd(3) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_16 -> ZII_p0Txd(0) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_17 -> ZII_p0Txd(1) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_18 -> ZII_p0Txd(2) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_19 -> ZII_p0Txd(3) */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_20 -> ZII_p0Rx_er */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_21 -> ZII_p0Rx_dv */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_22 -> ZII_p0RxCrs */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_23 -> ZII_p0Tx_er */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_24 -> ZII_p0Tx_en */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_25 -> ZII_p0Col */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_26 -> USB2D_RXVALID */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_27 -> EXT_EBC_REQ USB2D_RXERROR */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_28 -> USB2D_TXVALID */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_29 -> EBC_EXT_HDLA USB2D_PAD_SUSPNDM */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_30 -> EBC_EXT_ACK USB2D_XCVRSELECT */
{ GPIO0_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO0_31 -> EBC_EXR_BUSREQ USB2D_TERMSELECT */
},
{
/* GPIO Core 1 */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_0 -> USB2D_OPMODE0 */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_1 -> USB2D_OPMODE1 */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_2 -> UART0_DCD_N UART1_DSR_CTS_N UART2_SOUT */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_3 -> UART0_8PIN_DSR_N UART1_RTS_DTR_N UART2_SIN */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_4 -> UART0_8PIN_CTS_N UART3_SIN */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_5 -> UART0_RTS_N */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_6 -> UART0_DTR_N UART1_SOUT */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_7 -> UART0_RI_N UART1_SIN */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_8 -> UIC_IRQ(0) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_9 -> UIC_IRQ(1) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_10 -> UIC_IRQ(2) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_11 -> UIC_IRQ(3) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_12 -> UIC_IRQ(4) DMA_ACK(1) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_13 -> UIC_IRQ(6) DMA_EOT/TC(1) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_14 -> UIC_IRQ(7) DMA_REQ(0) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_15 -> UIC_IRQ(8) DMA_ACK(0) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_16 -> UIC_IRQ(9) DMA_EOT/TC(0) */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_17 -> - */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_18 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_19 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_20 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_21 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_22 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_23 -> \ Can be unselected thru TraceSelect Bit */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_24 -> / in PowerPC440EP Chip */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_25 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_26 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_27 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_28 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_29 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_30 -> | */
{ GPIO1_BASE, GPIO_DIS, GPIO_SEL }, /* GPIO1_31 -> - */
}
};
#endif
/*----------------------------------------------------------------------------+
| EBC Devices Characteristics
| Peripheral Bank Access Parameters - EBC0_BnAP
| Peripheral Bank Configuration Register - EBC0_BnCR
+----------------------------------------------------------------------------*/
/* Small Flash */
#define EBC0_BNAP_SMALL_FLASH \
EBC0_BNAP_BME_DISABLED | \
EBC0_BNAP_TWT_ENCODE(6) | \
EBC0_BNAP_CSN_ENCODE(0) | \
EBC0_BNAP_OEN_ENCODE(1) | \
EBC0_BNAP_WBN_ENCODE(1) | \
EBC0_BNAP_WBF_ENCODE(3) | \
EBC0_BNAP_TH_ENCODE(1) | \
EBC0_BNAP_RE_ENABLED | \
EBC0_BNAP_SOR_DELAYED | \
EBC0_BNAP_BEM_WRITEONLY | \
EBC0_BNAP_PEN_DISABLED
#define EBC0_BNCR_SMALL_FLASH_CS0 \
EBC0_BNCR_BAS_ENCODE(0xFFF00000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_8BIT
#define EBC0_BNCR_SMALL_FLASH_CS4 \
EBC0_BNCR_BAS_ENCODE(0x87F00000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_8BIT
/* Large Flash or SRAM */
#define EBC0_BNAP_LARGE_FLASH_OR_SRAM \
EBC0_BNAP_BME_DISABLED | \
EBC0_BNAP_TWT_ENCODE(8) | \
EBC0_BNAP_CSN_ENCODE(0) | \
EBC0_BNAP_OEN_ENCODE(1) | \
EBC0_BNAP_WBN_ENCODE(1) | \
EBC0_BNAP_WBF_ENCODE(1) | \
EBC0_BNAP_TH_ENCODE(2) | \
EBC0_BNAP_SOR_DELAYED | \
EBC0_BNAP_BEM_RW | \
EBC0_BNAP_PEN_DISABLED
#define EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS0 \
EBC0_BNCR_BAS_ENCODE(0xFF800000) | \
EBC0_BNCR_BS_8MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_16BIT
#define EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS4 \
EBC0_BNCR_BAS_ENCODE(0x87800000) | \
EBC0_BNCR_BS_8MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_16BIT
/* NVRAM - FPGA */
#define EBC0_BNAP_NVRAM_FPGA \
EBC0_BNAP_BME_DISABLED | \
EBC0_BNAP_TWT_ENCODE(9) | \
EBC0_BNAP_CSN_ENCODE(0) | \
EBC0_BNAP_OEN_ENCODE(1) | \
EBC0_BNAP_WBN_ENCODE(1) | \
EBC0_BNAP_WBF_ENCODE(0) | \
EBC0_BNAP_TH_ENCODE(2) | \
EBC0_BNAP_RE_ENABLED | \
EBC0_BNAP_SOR_DELAYED | \
EBC0_BNAP_BEM_WRITEONLY | \
EBC0_BNAP_PEN_DISABLED
#define EBC0_BNCR_NVRAM_FPGA_CS5 \
EBC0_BNCR_BAS_ENCODE(0x80000000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_8BIT
/* Nand Flash */
#define EBC0_BNAP_NAND_FLASH \
EBC0_BNAP_BME_DISABLED | \
EBC0_BNAP_TWT_ENCODE(3) | \
EBC0_BNAP_CSN_ENCODE(0) | \
EBC0_BNAP_OEN_ENCODE(0) | \
EBC0_BNAP_WBN_ENCODE(0) | \
EBC0_BNAP_WBF_ENCODE(0) | \
EBC0_BNAP_TH_ENCODE(1) | \
EBC0_BNAP_RE_ENABLED | \
EBC0_BNAP_SOR_NOT_DELAYED | \
EBC0_BNAP_BEM_RW | \
EBC0_BNAP_PEN_DISABLED
#define EBC0_BNCR_NAND_FLASH_CS0 0xB8400000
/* NAND0 */
#define EBC0_BNCR_NAND_FLASH_CS1 \
EBC0_BNCR_BAS_ENCODE(0x90000000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_32BIT
/* NAND1 - Bank2 */
#define EBC0_BNCR_NAND_FLASH_CS2 \
EBC0_BNCR_BAS_ENCODE(0x94000000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_32BIT
/* NAND1 - Bank3 */
#define EBC0_BNCR_NAND_FLASH_CS3 \
EBC0_BNCR_BAS_ENCODE(0x94000000) | \
EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
EBC0_BNCR_BW_32BIT
int board_early_init_f(void)
{
ext_bus_cntlr_init();
/*--------------------------------------------------------------------
* Setup the interrupt controller polarities, triggers, etc.
*-------------------------------------------------------------------*/
mtdcr(uic0sr, 0xffffffff); /* clear all */
mtdcr(uic0er, 0x00000000); /* disable all */
mtdcr(uic0cr, 0x00000009); /* ATI & UIC1 crit are critical */
mtdcr(uic0pr, 0xfffffe13); /* per ref-board manual */
mtdcr(uic0tr, 0x01c00008); /* per ref-board manual */
mtdcr(uic0vr, 0x00000001); /* 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, 0xffffe0ff); /* per ref-board manual */
mtdcr(uic1tr, 0x00ffc000); /* per ref-board manual */
mtdcr(uic1vr, 0x00000001); /* int31 highest, base=0x000 */
mtdcr(uic1sr, 0xffffffff); /* clear all */
/*--------------------------------------------------------------------
* Setup the GPIO pins
*-------------------------------------------------------------------*/
out32(GPIO0_OSRL, 0x00000400);
out32(GPIO0_OSRH, 0x00000000);
out32(GPIO0_TSRL, 0x00000400);
out32(GPIO0_TSRH, 0x00000000);
out32(GPIO0_ISR1L, 0x00000000);
out32(GPIO0_ISR1H, 0x00000000);
out32(GPIO0_ISR2L, 0x00000000);
out32(GPIO0_ISR2H, 0x00000000);
out32(GPIO0_ISR3L, 0x00000000);
out32(GPIO0_ISR3H, 0x00000000);
out32(GPIO1_OSRL, 0x0C380000);
out32(GPIO1_OSRH, 0x00000000);
out32(GPIO1_TSRL, 0x0C380000);
out32(GPIO1_TSRH, 0x00000000);
out32(GPIO1_ISR1L, 0x0FC30000);
out32(GPIO1_ISR1H, 0x00000000);
out32(GPIO1_ISR2L, 0x0C010000);
out32(GPIO1_ISR2H, 0x00000000);
out32(GPIO1_ISR3L, 0x01400000);
out32(GPIO1_ISR3H, 0x00000000);
configure_ppc440ep_pins();
return 0;
}
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
#include <linux/mtd/nand.h>
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
/*----------------------------------------------------------------------------+
| nand_reset.
| Reset Nand flash
| This routine will abort previous cmd
+----------------------------------------------------------------------------*/
int nand_reset(ulong addr)
{
int wait=0, stat=0;
out8(addr + NAND_CMD_REG, NAND0_CMD_RESET);
out8(addr + NAND_CMD_REG, NAND0_CMD_READ_STATUS);
while ((stat != 0xc0) && (wait != 0xffff)) {
stat = in8(addr + NAND_DATA_REG);
wait++;
}
if (stat == 0xc0) {
return 0;
} else {
printf("NAND Reset timeout.\n");
return -1;
}
}
void board_nand_set_device(int cs, ulong addr)
{
/* Set NandFlash Core Configuration Register */
out32(addr + NAND_CCR_REG, 0x00001000 | (cs << 24));
switch (cs) {
case 1:
/* -------
* NAND0
* -------
* K9F1208U0A : 4 addr cyc, 1 col + 3 Row
* Set NDF1CR - Enable External CS1 in NAND FLASH controller
*/
out32(addr + NAND_CR1_REG, 0x80002222);
break;
case 2:
/* -------
* NAND1
* -------
* K9K2G0B : 5 addr cyc, 2 col + 3 Row
* Set NDF2CR : Enable External CS2 in NAND FLASH controller
*/
out32(addr + NAND_CR2_REG, 0xC0007777);
break;
}
/* Perform Reset Command */
if (nand_reset(addr) != 0)
return;
}
void nand_init(void)
{
board_nand_set_device(1, CFG_NAND_ADDR);
nand_probe(CFG_NAND_ADDR);
if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
print_size(nand_dev_desc[0].totlen, "\n");
}
#if 0 /* NAND1 not supported yet */
board_nand_set_device(2, CFG_NAND2_ADDR);
nand_probe(CFG_NAND2_ADDR);
if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
print_size(nand_dev_desc[0].totlen, "\n");
}
#endif
}
#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
int checkboard(void)
{
char *s = getenv("serial#");
printf("Board: Bamboo - AMCC PPC440EP Evaluation Board");
if (s != NULL) {
puts(", serial# ");
puts(s);
}
putc('\n');
return (0);
}
/*************************************************************************
*
* init_spd_array -- Bamboo has one bank onboard sdram (plus DIMM)
*
* Fixed memory is composed of :
* MT46V16M16TG-75 from Micron (x 2), 256Mb, 16 M x16, DDR266,
* 13 row add bits, 10 column add bits (but 12 row used only).
* ECC device: MT46V16M8TG-75 from Micron (x 1), 128Mb, x8, DDR266,
* 12 row add bits, 10 column add bits.
* Prepare a subset (only the used ones) of SPD data
*
* Note : if the ECC is enabled (SDRAM_ECC_ENABLE) the size of
* the corresponding bank is divided by 2 due to number of Row addresses
* 12 in the ECC module
*
* Assumes: 64 MB, ECC, non-registered
* PLB @ 133 MHz
*
************************************************************************/
static void init_spd_array(void)
{
cfg_simulate_spd_eeprom[8] = 0x04; /* 2.5 Volt */
cfg_simulate_spd_eeprom[2] = 0x07; /* DDR ram */
#ifdef CONFIG_DDR_ECC
cfg_simulate_spd_eeprom[11] = 0x02; /* ECC ON : 02 OFF : 00 */
cfg_simulate_spd_eeprom[31] = 0x08; /* bankSizeID: 32MB */
cfg_simulate_spd_eeprom[3] = 0x0C; /* num Row Addr: 12 */
#else
cfg_simulate_spd_eeprom[11] = 0x00; /* ECC ON : 02 OFF : 00 */
cfg_simulate_spd_eeprom[31] = 0x10; /* bankSizeID: 64MB */
cfg_simulate_spd_eeprom[3] = 0x0D; /* num Row Addr: 13 */
#endif
cfg_simulate_spd_eeprom[4] = 0x09; /* numColAddr: 9 */
cfg_simulate_spd_eeprom[5] = 0x01; /* numBanks: 1 */
cfg_simulate_spd_eeprom[0] = 0x80; /* number of SPD bytes used: 128 */
cfg_simulate_spd_eeprom[1] = 0x08; /* total number bytes in SPD device = 256 */
cfg_simulate_spd_eeprom[21] = 0x00; /* not registered: 0 registered : 0x02*/
cfg_simulate_spd_eeprom[6] = 0x20; /* Module data width: 32 bits */
cfg_simulate_spd_eeprom[7] = 0x00; /* Module data width continued: +0 */
cfg_simulate_spd_eeprom[15] = 0x01; /* wcsbc = 1 */
cfg_simulate_spd_eeprom[27] = 0x50; /* tRpNs = 20 ns */
cfg_simulate_spd_eeprom[29] = 0x50; /* tRcdNs = 20 ns */
cfg_simulate_spd_eeprom[30] = 45; /* tRasNs */
cfg_simulate_spd_eeprom[18] = 0x0C; /* casBit (2,2.5) */
cfg_simulate_spd_eeprom[9] = 0x75; /* SDRAM Cycle Time (cas latency 2.5) = 7.5 ns */
cfg_simulate_spd_eeprom[23] = 0xA0; /* SDRAM Cycle Time (cas latency 2) = 10 ns */
cfg_simulate_spd_eeprom[25] = 0x00; /* SDRAM Cycle Time (cas latency 1.5) = N.A */
cfg_simulate_spd_eeprom[12] = 0x82; /* refresh Rate Type: Normal (15.625us) + Self refresh */
}
long int initdram (int board_type)
{
long dram_size = 0;
/*
* First write simulated values in eeprom array for onboard bank 0
*/
init_spd_array();
dram_size = spd_sdram (0);
return dram_size;
}
#if defined(CFG_DRAM_TEST)
int testdram(void)
{
unsigned long *mem = (unsigned long *)0;
const unsigned long kend = (1024 / sizeof(unsigned long));
unsigned long k, n;
mtmsr(0);
for (k = 0; k < CFG_KBYTES_SDRAM;
++k, mem += (1024 / sizeof(unsigned long))) {
if ((k & 1023) == 0) {
printf("%3d MB\r", k / 1024);
}
memset(mem, 0xaaaaaaaa, 1024);
for (n = 0; n < kend; ++n) {
if (mem[n] != 0xaaaaaaaa) {
printf("SDRAM test fails at: %08x\n",
(uint) & mem[n]);
return 1;
}
}
memset(mem, 0x55555555, 1024);
for (n = 0; n < kend; ++n) {
if (mem[n] != 0x55555555) {
printf("SDRAM test fails at: %08x\n",
(uint) & mem[n]);
return 1;
}
}
}
printf("SDRAM test passes\n");
return 0;
}
#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) && defined(CFG_PCI_PRE_INIT)
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);
return 1;
}
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
/*************************************************************************
* 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(CFG_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller *hose)
{
/*--------------------------------------------------------------------------+
* Set up Direct MMIO registers
*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------+
| PowerPC440 EP PCI Master configuration.
| Map one 1Gig range of PLB/processor addresses to PCI memory space.
| PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
| 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, CFG_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIX0_PMM0PCILA, CFG_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, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* 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,
CFG_PCI_SUBSYS_VENDORID);
pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_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);
}
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
/*************************************************************************
* pci_master_init
*
************************************************************************/
#if defined(CONFIG_PCI) && defined(CFG_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 /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
/*************************************************************************
* 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)
{
/* Bamboo is always configured as host. */
return (1);
}
#endif /* defined(CONFIG_PCI) */
/*----------------------------------------------------------------------------+
| is_powerpc440ep_pass1.
+----------------------------------------------------------------------------*/
int is_powerpc440ep_pass1(void)
{
unsigned long pvr;
pvr = get_pvr();
if (pvr == PVR_POWERPC_440EP_PASS1)
return TRUE;
else if (pvr == PVR_POWERPC_440EP_PASS2)
return FALSE;
else {
printf("brdutil error 3\n");
for (;;)
;
}
return(FALSE);
}
/*----------------------------------------------------------------------------+
| is_nand_selected.
+----------------------------------------------------------------------------*/
int is_nand_selected(void)
{
#ifdef CONFIG_BAMBOO_NAND
return TRUE;
#else
return FALSE;
#endif
}
/*----------------------------------------------------------------------------+
| config_on_ebc_cs4_is_small_flash => from EPLD
+----------------------------------------------------------------------------*/
unsigned char config_on_ebc_cs4_is_small_flash(void)
{
/* Not implemented yet => returns constant value */
return TRUE;
}
/*----------------------------------------------------------------------------+
| Ext_bus_cntlr_init.
| Initialize the external bus controller
+----------------------------------------------------------------------------*/
void ext_bus_cntlr_init(void)
{
unsigned long sdr0_pstrp0, sdr0_sdstp1;
unsigned long bootstrap_settings, boot_selection, ebc_boot_size;
int computed_boot_device = BOOT_DEVICE_UNKNOWN;
unsigned long ebc0_cs0_bnap_value = 0, ebc0_cs0_bncr_value = 0;
unsigned long ebc0_cs1_bnap_value = 0, ebc0_cs1_bncr_value = 0;
unsigned long ebc0_cs2_bnap_value = 0, ebc0_cs2_bncr_value = 0;
unsigned long ebc0_cs3_bnap_value = 0, ebc0_cs3_bncr_value = 0;
unsigned long ebc0_cs4_bnap_value = 0, ebc0_cs4_bncr_value = 0;
/*-------------------------------------------------------------------------+
|
| PART 1 : Initialize EBC Bank 5
| ==============================
| Bank5 is always associated to the NVRAM/EPLD.
| It has to be initialized prior to other banks settings computation since
| some board registers values may be needed
|
+-------------------------------------------------------------------------*/
/* NVRAM - FPGA */
mtebc(pb5ap, EBC0_BNAP_NVRAM_FPGA);
mtebc(pb5cr, EBC0_BNCR_NVRAM_FPGA_CS5);
/*-------------------------------------------------------------------------+
|
| PART 2 : Determine which boot device was selected
| =========================================
|
| Read Pin Strap Register in PPC440EP
| In case of boot from IIC, read Serial Device Strap Register1
|
| Result can either be :
| - Boot from EBC 8bits => SMALL FLASH
| - Boot from EBC 16bits => Large Flash or SRAM
| - Boot from NAND Flash
| - Boot from PCI
|
+-------------------------------------------------------------------------*/
/* Read Pin Strap Register in PPC440EP */
mfsdr(sdr_pstrp0, sdr0_pstrp0);
bootstrap_settings = sdr0_pstrp0 & SDR0_PSTRP0_BOOTSTRAP_MASK;
/*-------------------------------------------------------------------------+
| PPC440EP Pass1
+-------------------------------------------------------------------------*/
if (is_powerpc440ep_pass1() == TRUE) {
switch(bootstrap_settings) {
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS0:
/* Default Strap Settings 0 : CPU 400 - PLB 133 - Boot EBC 8 bit 33MHz */
/* Boot from Small Flash */
computed_boot_device = BOOT_FROM_SMALL_FLASH;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS1:
/* Default Strap Settings 1 : CPU 533 - PLB 133 - Boot PCI 66MHz */
/* Boot from PCI */
computed_boot_device = BOOT_FROM_PCI;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS2:
/* Default Strap Settings 2 : CPU 500 - PLB 100 - Boot NDFC16 66MHz */
/* Boot from Nand Flash */
computed_boot_device = BOOT_FROM_NAND_FLASH0;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS3:
/* Default Strap Settings 3 : CPU 333 - PLB 133 - Boot EBC 8 bit 66MHz */
/* Boot from Small Flash */
computed_boot_device = BOOT_FROM_SMALL_FLASH;
break;
case SDR0_PSTRP0_BOOTSTRAP_IIC_A8_EN:
case SDR0_PSTRP0_BOOTSTRAP_IIC_A4_EN:
/* Boot Settings in IIC EEprom address 0xA8 or 0xA4 */
/* Read Serial Device Strap Register1 in PPC440EP */
mfsdr(sdr_sdstp1, sdr0_sdstp1);
boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_BOOT_SEL_MASK;
ebc_boot_size = sdr0_sdstp1 & SDR0_SDSTP1_EBC_ROM_BS_MASK;
switch(boot_selection) {
case SDR0_SDSTP1_BOOT_SEL_EBC:
switch(ebc_boot_size) {
case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
computed_boot_device = BOOT_FROM_LARGE_FLASH_OR_SRAM;
break;
case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
computed_boot_device = BOOT_FROM_SMALL_FLASH;
break;
}
break;
case SDR0_SDSTP1_BOOT_SEL_PCI:
computed_boot_device = BOOT_FROM_PCI;
break;
case SDR0_SDSTP1_BOOT_SEL_NDFC:
computed_boot_device = BOOT_FROM_NAND_FLASH0;
break;
}
break;
}
}
/*-------------------------------------------------------------------------+
| PPC440EP Pass2
+-------------------------------------------------------------------------*/
else {
switch(bootstrap_settings) {
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS0:
/* Default Strap Settings 0 : CPU 400 - PLB 133 - Boot EBC 8 bit 33MHz */
/* Boot from Small Flash */
computed_boot_device = BOOT_FROM_SMALL_FLASH;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS1:
/* Default Strap Settings 1 : CPU 333 - PLB 133 - Boot PCI 66MHz */
/* Boot from PCI */
computed_boot_device = BOOT_FROM_PCI;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS2:
/* Default Strap Settings 2 : CPU 400 - PLB 100 - Boot NDFC16 33MHz */
/* Boot from Nand Flash */
computed_boot_device = BOOT_FROM_NAND_FLASH0;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS3:
/* Default Strap Settings 3 : CPU 400 - PLB 100 - Boot EBC 16 bit 33MHz */
/* Boot from Large Flash or SRAM */
computed_boot_device = BOOT_FROM_LARGE_FLASH_OR_SRAM;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS4:
/* Default Strap Settings 4 : CPU 333 - PLB 133 - Boot EBC 16 bit 66MHz */
/* Boot from Large Flash or SRAM */
computed_boot_device = BOOT_FROM_LARGE_FLASH_OR_SRAM;
break;
case SDR0_PSTRP0_BOOTSTRAP_SETTINGS6:
/* Default Strap Settings 6 : CPU 400 - PLB 100 - Boot PCI 33MHz */
/* Boot from PCI */
computed_boot_device = BOOT_FROM_PCI;
break;
case SDR0_PSTRP0_BOOTSTRAP_IIC_A8_EN:
case SDR0_PSTRP0_BOOTSTRAP_IIC_A4_EN:
/* Default Strap Settings 5-7 */
/* Boot Settings in IIC EEprom address 0xA8 or 0xA4 */
/* Read Serial Device Strap Register1 in PPC440EP */
mfsdr(sdr_sdstp1, sdr0_sdstp1);
boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_BOOT_SEL_MASK;
ebc_boot_size = sdr0_sdstp1 & SDR0_SDSTP1_EBC_ROM_BS_MASK;
switch(boot_selection) {
case SDR0_SDSTP1_BOOT_SEL_EBC:
switch(ebc_boot_size) {
case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
computed_boot_device = BOOT_FROM_LARGE_FLASH_OR_SRAM;
break;
case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
computed_boot_device = BOOT_FROM_SMALL_FLASH;
break;
}
break;
case SDR0_SDSTP1_BOOT_SEL_PCI:
computed_boot_device = BOOT_FROM_PCI;
break;
case SDR0_SDSTP1_BOOT_SEL_NDFC:
computed_boot_device = BOOT_FROM_NAND_FLASH0;
break;
}
break;
}
}
/*-------------------------------------------------------------------------+
|
| PART 3 : Compute EBC settings depending on selected boot device
| ====== ======================================================
|
| Resulting EBC init will be among following configurations :
|
| - Boot from EBC 8bits => boot from SMALL FLASH selected
| EBC-CS0 = Small Flash
| EBC-CS1,2,3 = NAND Flash or
| Exp.Slot depending on Soft Config
| EBC-CS4 = SRAM/Large Flash or
| Large Flash/SRAM depending on jumpers
| EBC-CS5 = NVRAM / EPLD
|
| - Boot from EBC 16bits => boot from Large Flash or SRAM selected
| EBC-CS0 = SRAM/Large Flash or
| Large Flash/SRAM depending on jumpers
| EBC-CS1,2,3 = NAND Flash or
| Exp.Slot depending on Software Configuration
| EBC-CS4 = Small Flash
| EBC-CS5 = NVRAM / EPLD
|
| - Boot from NAND Flash
| EBC-CS0 = NAND Flash0
| EBC-CS1,2,3 = NAND Flash1
| EBC-CS4 = SRAM/Large Flash or
| Large Flash/SRAM depending on jumpers
| EBC-CS5 = NVRAM / EPLD
|
| - Boot from PCI
| EBC-CS0 = ...
| EBC-CS1,2,3 = NAND Flash or
| Exp.Slot depending on Software Configuration
| EBC-CS4 = SRAM/Large Flash or
| Large Flash/SRAM or
| Small Flash depending on jumpers
| EBC-CS5 = NVRAM / EPLD
|
+-------------------------------------------------------------------------*/
switch(computed_boot_device) {
/*------------------------------------------------------------------------- */
case BOOT_FROM_SMALL_FLASH:
/*------------------------------------------------------------------------- */
ebc0_cs0_bnap_value = EBC0_BNAP_SMALL_FLASH;
ebc0_cs0_bncr_value = EBC0_BNCR_SMALL_FLASH_CS0;
if ((is_nand_selected()) == TRUE) {
/* NAND Flash */
ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
ebc0_cs2_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs2_bncr_value = EBC0_BNCR_NAND_FLASH_CS2;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
} else {
/* Expansion Slot */
ebc0_cs1_bnap_value = 0;
ebc0_cs1_bncr_value = 0;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
}
ebc0_cs4_bnap_value = EBC0_BNAP_LARGE_FLASH_OR_SRAM;
ebc0_cs4_bncr_value = EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS4;
break;
/*------------------------------------------------------------------------- */
case BOOT_FROM_LARGE_FLASH_OR_SRAM:
/*------------------------------------------------------------------------- */
ebc0_cs0_bnap_value = EBC0_BNAP_LARGE_FLASH_OR_SRAM;
ebc0_cs0_bncr_value = EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS0;
if ((is_nand_selected()) == TRUE) {
/* NAND Flash */
ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
} else {
/* Expansion Slot */
ebc0_cs1_bnap_value = 0;
ebc0_cs1_bncr_value = 0;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
}
ebc0_cs4_bnap_value = EBC0_BNAP_SMALL_FLASH;
ebc0_cs4_bncr_value = EBC0_BNCR_SMALL_FLASH_CS4;
break;
/*------------------------------------------------------------------------- */
case BOOT_FROM_NAND_FLASH0:
/*------------------------------------------------------------------------- */
ebc0_cs0_bnap_value = 0;
ebc0_cs0_bncr_value = 0;
ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
/* Large Flash or SRAM */
ebc0_cs4_bnap_value = EBC0_BNAP_LARGE_FLASH_OR_SRAM;
ebc0_cs4_bncr_value = EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS4;
break;
/*------------------------------------------------------------------------- */
case BOOT_FROM_PCI:
/*------------------------------------------------------------------------- */
ebc0_cs0_bnap_value = 0;
ebc0_cs0_bncr_value = 0;
if ((is_nand_selected()) == TRUE) {
/* NAND Flash */
ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
} else {
/* Expansion Slot */
ebc0_cs1_bnap_value = 0;
ebc0_cs1_bncr_value = 0;
ebc0_cs2_bnap_value = 0;
ebc0_cs2_bncr_value = 0;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
}
if ((config_on_ebc_cs4_is_small_flash()) == TRUE) {
/* Small Flash */
ebc0_cs4_bnap_value = EBC0_BNAP_SMALL_FLASH;
ebc0_cs4_bncr_value = EBC0_BNCR_SMALL_FLASH_CS4;
} else {
/* Large Flash or SRAM */
ebc0_cs4_bnap_value = EBC0_BNAP_LARGE_FLASH_OR_SRAM;
ebc0_cs4_bncr_value = EBC0_BNCR_LARGE_FLASH_OR_SRAM_CS4;
}
break;
/*------------------------------------------------------------------------- */
case BOOT_DEVICE_UNKNOWN:
/*------------------------------------------------------------------------- */
/* Error */
break;
}
/*-------------------------------------------------------------------------+
| Initialize EBC CONFIG
+-------------------------------------------------------------------------*/
mtdcr(ebccfga, xbcfg);
mtdcr(ebccfgd, EBC0_CFG_EBTC_DRIVEN |
EBC0_CFG_PTD_ENABLED |
EBC0_CFG_RTC_2048PERCLK |
EBC0_CFG_EMPL_LOW |
EBC0_CFG_EMPH_LOW |
EBC0_CFG_CSTC_DRIVEN |
EBC0_CFG_BPF_ONEDW |
EBC0_CFG_EMS_8BIT |
EBC0_CFG_PME_DISABLED |
EBC0_CFG_PMT_ENCODE(0) );
/*-------------------------------------------------------------------------+
| Initialize EBC Bank 0-4
+-------------------------------------------------------------------------*/
/* EBC Bank0 */
mtebc(pb0ap, ebc0_cs0_bnap_value);
mtebc(pb0cr, ebc0_cs0_bncr_value);
/* EBC Bank1 */
mtebc(pb1ap, ebc0_cs1_bnap_value);
mtebc(pb1cr, ebc0_cs1_bncr_value);
/* EBC Bank2 */
mtebc(pb2ap, ebc0_cs2_bnap_value);
mtebc(pb2cr, ebc0_cs2_bncr_value);
/* EBC Bank3 */
mtebc(pb3ap, ebc0_cs3_bnap_value);
mtebc(pb3cr, ebc0_cs3_bncr_value);
/* EBC Bank4 */
mtebc(pb4ap, ebc0_cs4_bnap_value);
mtebc(pb4cr, ebc0_cs4_bncr_value);
return;
}
/*----------------------------------------------------------------------------+
| get_uart_configuration.
+----------------------------------------------------------------------------*/
uart_config_nb_t get_uart_configuration(void)
{
return (L4);
}
/*----------------------------------------------------------------------------+
| set_phy_configuration_through_fpga => to EPLD
+----------------------------------------------------------------------------*/
void set_phy_configuration_through_fpga(zmii_config_t config)
{
unsigned long fpga_selection_reg;
fpga_selection_reg = in8(FPGA_SELECTION_1_REG) & ~FPGA_SEL_1_REG_PHY_MASK;
switch(config)
{
case ZMII_CONFIGURATION_IS_MII:
fpga_selection_reg = fpga_selection_reg | FPGA_SEL_1_REG_MII;
break;
case ZMII_CONFIGURATION_IS_RMII:
fpga_selection_reg = fpga_selection_reg | FPGA_SEL_1_REG_RMII;
break;
case ZMII_CONFIGURATION_IS_SMII:
fpga_selection_reg = fpga_selection_reg | FPGA_SEL_1_REG_SMII;
break;
case ZMII_CONFIGURATION_UNKNOWN:
default:
break;
}
out8(FPGA_SELECTION_1_REG,fpga_selection_reg);
}
/*----------------------------------------------------------------------------+
| scp_selection_in_fpga.
+----------------------------------------------------------------------------*/
void scp_selection_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) & ~FPGA_SEL2_REG_IIC1_SCP_SEL_MASK;
fpga_selection_2_reg |= FPGA_SEL2_REG_SEL_SCP;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| iic1_selection_in_fpga.
+----------------------------------------------------------------------------*/
void iic1_selection_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) & ~FPGA_SEL2_REG_IIC1_SCP_SEL_MASK;
fpga_selection_2_reg |= FPGA_SEL2_REG_SEL_IIC1;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| dma_a_b_selection_in_fpga.
+----------------------------------------------------------------------------*/
void dma_a_b_selection_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) | FPGA_SEL2_REG_SEL_DMA_A_B;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| dma_a_b_unselect_in_fpga.
+----------------------------------------------------------------------------*/
void dma_a_b_unselect_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) & ~FPGA_SEL2_REG_SEL_DMA_A_B;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| dma_c_d_selection_in_fpga.
+----------------------------------------------------------------------------*/
void dma_c_d_selection_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) | FPGA_SEL2_REG_SEL_DMA_C_D;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| dma_c_d_unselect_in_fpga.
+----------------------------------------------------------------------------*/
void dma_c_d_unselect_in_fpga(void)
{
unsigned long fpga_selection_2_reg;
fpga_selection_2_reg = in8(FPGA_SELECTION_2_REG) & ~FPGA_SEL2_REG_SEL_DMA_C_D;
out8(FPGA_SELECTION_2_REG,fpga_selection_2_reg);
}
/*----------------------------------------------------------------------------+
| usb2_device_selection_in_fpga.
+----------------------------------------------------------------------------*/
void usb2_device_selection_in_fpga(void)
{
unsigned long fpga_selection_1_reg;
fpga_selection_1_reg = in8(FPGA_SELECTION_1_REG) | FPGA_SEL_1_REG_USB2_DEV_SEL;
out8(FPGA_SELECTION_1_REG,fpga_selection_1_reg);
}
/*----------------------------------------------------------------------------+
| usb2_device_reset_through_fpga.
+----------------------------------------------------------------------------*/
void usb2_device_reset_through_fpga(void)
{
/* Perform soft Reset pulse */
unsigned long fpga_reset_reg;
int i;
fpga_reset_reg = in8(FPGA_RESET_REG);
out8(FPGA_RESET_REG,fpga_reset_reg | FPGA_RESET_REG_RESET_USB20_DEV);
for (i=0; i<500; i++)
udelay(1000);
out8(FPGA_RESET_REG,fpga_reset_reg);
}
/*----------------------------------------------------------------------------+
| usb2_host_selection_in_fpga.
+----------------------------------------------------------------------------*/
void usb2_host_selection_in_fpga(void)
{
unsigned long fpga_selection_1_reg;
fpga_selection_1_reg = in8(FPGA_SELECTION_1_REG) | FPGA_SEL_1_REG_USB2_HOST_SEL;
out8(FPGA_SELECTION_1_REG,fpga_selection_1_reg);
}
/*----------------------------------------------------------------------------+
| ndfc_selection_in_fpga.
+----------------------------------------------------------------------------*/
void ndfc_selection_in_fpga(void)
{
unsigned long fpga_selection_1_reg;
fpga_selection_1_reg = in8(FPGA_SELECTION_1_REG) &~FPGA_SEL_1_REG_NF_SELEC_MASK;
fpga_selection_1_reg |= FPGA_SEL_1_REG_NF0_SEL_BY_NFCS1;
fpga_selection_1_reg |= FPGA_SEL_1_REG_NF1_SEL_BY_NFCS2;
out8(FPGA_SELECTION_1_REG,fpga_selection_1_reg);
}
/*----------------------------------------------------------------------------+
| uart_selection_in_fpga.
+----------------------------------------------------------------------------*/
void uart_selection_in_fpga(uart_config_nb_t uart_config)
{
/* FPGA register */
unsigned char fpga_selection_3_reg;
/* Read FPGA Reagister */
fpga_selection_3_reg = in8(FPGA_SELECTION_3_REG);
switch (uart_config)
{
case L1:
/* ----------------------------------------------------------------------- */
/* L1 configuration: UART0 = 8 pins */
/* ----------------------------------------------------------------------- */
/* Configure FPGA */
fpga_selection_3_reg = fpga_selection_3_reg & ~FPGA_SEL3_REG_SEL_UART_CONFIG_MASK;
fpga_selection_3_reg = fpga_selection_3_reg | FPGA_SEL3_REG_SEL_UART_CONFIG1;
out8(FPGA_SELECTION_3_REG, fpga_selection_3_reg);
break;
case L2:
/* ----------------------------------------------------------------------- */
/* L2 configuration: UART0 = 4 pins */
/* UART1 = 4 pins */
/* ----------------------------------------------------------------------- */
/* Configure FPGA */
fpga_selection_3_reg = fpga_selection_3_reg & ~FPGA_SEL3_REG_SEL_UART_CONFIG_MASK;
fpga_selection_3_reg = fpga_selection_3_reg | FPGA_SEL3_REG_SEL_UART_CONFIG2;
out8(FPGA_SELECTION_3_REG, fpga_selection_3_reg);
break;
case L3:
/* ----------------------------------------------------------------------- */
/* L3 configuration: UART0 = 4 pins */
/* UART1 = 2 pins */
/* UART2 = 2 pins */
/* ----------------------------------------------------------------------- */
/* Configure FPGA */
fpga_selection_3_reg = fpga_selection_3_reg & ~FPGA_SEL3_REG_SEL_UART_CONFIG_MASK;
fpga_selection_3_reg = fpga_selection_3_reg | FPGA_SEL3_REG_SEL_UART_CONFIG3;
out8(FPGA_SELECTION_3_REG, fpga_selection_3_reg);
break;
case L4:
/* Configure FPGA */
fpga_selection_3_reg = fpga_selection_3_reg & ~FPGA_SEL3_REG_SEL_UART_CONFIG_MASK;
fpga_selection_3_reg = fpga_selection_3_reg | FPGA_SEL3_REG_SEL_UART_CONFIG4;
out8(FPGA_SELECTION_3_REG, fpga_selection_3_reg);
break;
default:
/* Unsupported UART configuration number */
for (;;)
;
break;
}
}
/*----------------------------------------------------------------------------+
| init_default_gpio
+----------------------------------------------------------------------------*/
void init_default_gpio(void)
{
int i;
/* Init GPIO0 */
for(i=0; i<GPIO_MAX; i++)
{
gpio_tab[GPIO0][i].add = GPIO0_BASE;
gpio_tab[GPIO0][i].in_out = GPIO_DIS;
gpio_tab[GPIO0][i].alt_nb = GPIO_SEL;
}
/* Init GPIO1 */
for(i=0; i<GPIO_MAX; i++)
{
gpio_tab[GPIO1][i].add = GPIO1_BASE;
gpio_tab[GPIO1][i].in_out = GPIO_DIS;
gpio_tab[GPIO1][i].alt_nb = GPIO_SEL;
}
/* EBC_CS_N(5) - GPIO0_10 */
gpio_tab[GPIO0][10].in_out = GPIO_OUT;
gpio_tab[GPIO0][10].alt_nb = GPIO_ALT1;
/* EBC_CS_N(4) - GPIO0_9 */
gpio_tab[GPIO0][9].in_out = GPIO_OUT;
gpio_tab[GPIO0][9].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_uart_ios
+------------------------------------------------------------------------------
|
| Set UART Configuration in PowerPC440EP
|
| +---------------------------------------------------------------------+
| | Configuartion | Connector | Nb of pins | Pins | Associated |
| | Number | Port Name | available | naming | CORE |
| +-----------------+---------------+------------+--------+-------------+
| | L1 | Port_A | 8 | UART | UART core 0 |
| +-----------------+---------------+------------+--------+-------------+
| | L2 | Port_A | 4 | UART1 | UART core 0 |
| | (L2D) | Port_B | 4 | UART2 | UART core 1 |
| +-----------------+---------------+------------+--------+-------------+
| | L3 | Port_A | 4 | UART1 | UART core 0 |
| | (L3D) | Port_B | 2 | UART2 | UART core 1 |
| | | Port_C | 2 | UART3 | UART core 2 |
| +-----------------+---------------+------------+--------+-------------+
| | | Port_A | 2 | UART1 | UART core 0 |
| | L4 | Port_B | 2 | UART2 | UART core 1 |
| | (L4D) | Port_C | 2 | UART3 | UART core 2 |
| | | Port_D | 2 | UART4 | UART core 3 |
| +-----------------+---------------+------------+--------+-------------+
|
| Involved GPIOs
|
| +------------------------------------------------------------------------------+
| | GPIO | Aternate 1 | I/O | Alternate 2 | I/O | Alternate 3 | I/O |
| +---------+------------------+-----+-----------------+-----+-------------+-----+
| | GPIO1_2 | UART0_DCD_N | I | UART1_DSR_CTS_N | I | UART2_SOUT | O |
| | GPIO1_3 | UART0_8PIN_DSR_N | I | UART1_RTS_DTR_N | O | UART2_SIN | I |
| | GPIO1_4 | UART0_8PIN_CTS_N | I | NA | NA | UART3_SIN | I |
| | GPIO1_5 | UART0_RTS_N | O | NA | NA | UART3_SOUT | O |
| | GPIO1_6 | UART0_DTR_N | O | UART1_SOUT | O | NA | NA |
| | GPIO1_7 | UART0_RI_N | I | UART1_SIN | I | NA | NA |
| +------------------------------------------------------------------------------+
|
|
+----------------------------------------------------------------------------*/
void update_uart_ios(uart_config_nb_t uart_config)
{
switch (uart_config)
{
case L1:
/* ----------------------------------------------------------------------- */
/* L1 configuration: UART0 = 8 pins */
/* ----------------------------------------------------------------------- */
/* Update GPIO Configuration Table */
gpio_tab[GPIO1][2].in_out = GPIO_IN;
gpio_tab[GPIO1][2].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][3].in_out = GPIO_IN;
gpio_tab[GPIO1][3].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][4].in_out = GPIO_IN;
gpio_tab[GPIO1][4].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][5].in_out = GPIO_OUT;
gpio_tab[GPIO1][5].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][6].in_out = GPIO_OUT;
gpio_tab[GPIO1][6].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][7].in_out = GPIO_IN;
gpio_tab[GPIO1][7].alt_nb = GPIO_ALT1;
break;
case L2:
/* ----------------------------------------------------------------------- */
/* L2 configuration: UART0 = 4 pins */
/* UART1 = 4 pins */
/* ----------------------------------------------------------------------- */
/* Update GPIO Configuration Table */
gpio_tab[GPIO1][2].in_out = GPIO_IN;
gpio_tab[GPIO1][2].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][3].in_out = GPIO_OUT;
gpio_tab[GPIO1][3].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][4].in_out = GPIO_IN;
gpio_tab[GPIO1][4].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][5].in_out = GPIO_OUT;
gpio_tab[GPIO1][5].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][6].in_out = GPIO_OUT;
gpio_tab[GPIO1][6].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][7].in_out = GPIO_IN;
gpio_tab[GPIO1][7].alt_nb = GPIO_ALT2;
break;
case L3:
/* ----------------------------------------------------------------------- */
/* L3 configuration: UART0 = 4 pins */
/* UART1 = 2 pins */
/* UART2 = 2 pins */
/* ----------------------------------------------------------------------- */
/* Update GPIO Configuration Table */
gpio_tab[GPIO1][2].in_out = GPIO_OUT;
gpio_tab[GPIO1][2].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][3].in_out = GPIO_IN;
gpio_tab[GPIO1][3].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][4].in_out = GPIO_IN;
gpio_tab[GPIO1][4].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][5].in_out = GPIO_OUT;
gpio_tab[GPIO1][5].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][6].in_out = GPIO_OUT;
gpio_tab[GPIO1][6].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][7].in_out = GPIO_IN;
gpio_tab[GPIO1][7].alt_nb = GPIO_ALT2;
break;
case L4:
/* ----------------------------------------------------------------------- */
/* L4 configuration: UART0 = 2 pins */
/* UART1 = 2 pins */
/* UART2 = 2 pins */
/* UART3 = 2 pins */
/* ----------------------------------------------------------------------- */
/* Update GPIO Configuration Table */
gpio_tab[GPIO1][2].in_out = GPIO_OUT;
gpio_tab[GPIO1][2].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][3].in_out = GPIO_IN;
gpio_tab[GPIO1][3].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][4].in_out = GPIO_IN;
gpio_tab[GPIO1][4].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][5].in_out = GPIO_OUT;
gpio_tab[GPIO1][5].alt_nb = GPIO_ALT3;
gpio_tab[GPIO1][6].in_out = GPIO_OUT;
gpio_tab[GPIO1][6].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][7].in_out = GPIO_IN;
gpio_tab[GPIO1][7].alt_nb = GPIO_ALT2;
break;
default:
/* Unsupported UART configuration number */
printf("ERROR - Unsupported UART configuration number.\n\n");
for (;;)
;
break;
}
/* Set input Selection Register on Alt_Receive for UART Input Core */
out32(GPIO1_IS1L, (in32(GPIO1_IS1L) | 0x0FC30000));
out32(GPIO1_IS2L, (in32(GPIO1_IS2L) | 0x0C030000));
out32(GPIO1_IS3L, (in32(GPIO1_IS3L) | 0x03C00000));
}
/*----------------------------------------------------------------------------+
| update_ndfc_ios(void).
+----------------------------------------------------------------------------*/
void update_ndfc_ios(void)
{
/* Update GPIO Configuration Table */
gpio_tab[GPIO0][6].in_out = GPIO_OUT; /* EBC_CS_N(1) */
gpio_tab[GPIO0][6].alt_nb = GPIO_ALT1;
#if 0
gpio_tab[GPIO0][7].in_out = GPIO_OUT; /* EBC_CS_N(2) */
gpio_tab[GPIO0][7].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][7].in_out = GPIO_OUT; /* EBC_CS_N(3) */
gpio_tab[GPIO0][7].alt_nb = GPIO_ALT1;
#endif
}
/*----------------------------------------------------------------------------+
| update_zii_ios(void).
+----------------------------------------------------------------------------*/
void update_zii_ios(void)
{
/* Update GPIO Configuration Table */
gpio_tab[GPIO0][12].in_out = GPIO_IN; /* ZII_p0Rxd(0) */
gpio_tab[GPIO0][12].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][13].in_out = GPIO_IN; /* ZII_p0Rxd(1) */
gpio_tab[GPIO0][13].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][14].in_out = GPIO_IN; /* ZII_p0Rxd(2) */
gpio_tab[GPIO0][14].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][15].in_out = GPIO_IN; /* ZII_p0Rxd(3) */
gpio_tab[GPIO0][15].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][16].in_out = GPIO_OUT; /* ZII_p0Txd(0) */
gpio_tab[GPIO0][16].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][17].in_out = GPIO_OUT; /* ZII_p0Txd(1) */
gpio_tab[GPIO0][17].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][18].in_out = GPIO_OUT; /* ZII_p0Txd(2) */
gpio_tab[GPIO0][18].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][19].in_out = GPIO_OUT; /* ZII_p0Txd(3) */
gpio_tab[GPIO0][19].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][20].in_out = GPIO_IN; /* ZII_p0Rx_er */
gpio_tab[GPIO0][20].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][21].in_out = GPIO_IN; /* ZII_p0Rx_dv */
gpio_tab[GPIO0][21].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][22].in_out = GPIO_IN; /* ZII_p0Crs */
gpio_tab[GPIO0][22].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][23].in_out = GPIO_OUT; /* ZII_p0Tx_er */
gpio_tab[GPIO0][23].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][24].in_out = GPIO_OUT; /* ZII_p0Tx_en */
gpio_tab[GPIO0][24].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][25].in_out = GPIO_IN; /* ZII_p0Col */
gpio_tab[GPIO0][25].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_uic_0_3_irq_ios().
+----------------------------------------------------------------------------*/
void update_uic_0_3_irq_ios(void)
{
gpio_tab[GPIO1][8].in_out = GPIO_IN; /* UIC_IRQ(0) */
gpio_tab[GPIO1][8].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][9].in_out = GPIO_IN; /* UIC_IRQ(1) */
gpio_tab[GPIO1][9].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][10].in_out = GPIO_IN; /* UIC_IRQ(2) */
gpio_tab[GPIO1][10].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][11].in_out = GPIO_IN; /* UIC_IRQ(3) */
gpio_tab[GPIO1][11].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_uic_4_9_irq_ios().
+----------------------------------------------------------------------------*/
void update_uic_4_9_irq_ios(void)
{
gpio_tab[GPIO1][12].in_out = GPIO_IN; /* UIC_IRQ(4) */
gpio_tab[GPIO1][12].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][13].in_out = GPIO_IN; /* UIC_IRQ(6) */
gpio_tab[GPIO1][13].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][14].in_out = GPIO_IN; /* UIC_IRQ(7) */
gpio_tab[GPIO1][14].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][15].in_out = GPIO_IN; /* UIC_IRQ(8) */
gpio_tab[GPIO1][15].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][16].in_out = GPIO_IN; /* UIC_IRQ(9) */
gpio_tab[GPIO1][16].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_dma_a_b_ios().
+----------------------------------------------------------------------------*/
void update_dma_a_b_ios(void)
{
gpio_tab[GPIO1][12].in_out = GPIO_OUT; /* DMA_ACK(1) */
gpio_tab[GPIO1][12].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][13].in_out = GPIO_BI; /* DMA_EOT/TC(1) */
gpio_tab[GPIO1][13].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][14].in_out = GPIO_IN; /* DMA_REQ(0) */
gpio_tab[GPIO1][14].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][15].in_out = GPIO_OUT; /* DMA_ACK(0) */
gpio_tab[GPIO1][15].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][16].in_out = GPIO_BI; /* DMA_EOT/TC(0) */
gpio_tab[GPIO1][16].alt_nb = GPIO_ALT2;
}
/*----------------------------------------------------------------------------+
| update_dma_c_d_ios().
+----------------------------------------------------------------------------*/
void update_dma_c_d_ios(void)
{
gpio_tab[GPIO0][0].in_out = GPIO_IN; /* DMA_REQ(2) */
gpio_tab[GPIO0][0].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][1].in_out = GPIO_OUT; /* DMA_ACK(2) */
gpio_tab[GPIO0][1].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][2].in_out = GPIO_BI; /* DMA_EOT/TC(2) */
gpio_tab[GPIO0][2].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][3].in_out = GPIO_IN; /* DMA_REQ(3) */
gpio_tab[GPIO0][3].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][4].in_out = GPIO_OUT; /* DMA_ACK(3) */
gpio_tab[GPIO0][4].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][5].in_out = GPIO_BI; /* DMA_EOT/TC(3) */
gpio_tab[GPIO0][5].alt_nb = GPIO_ALT2;
}
/*----------------------------------------------------------------------------+
| update_ebc_master_ios().
+----------------------------------------------------------------------------*/
void update_ebc_master_ios(void)
{
gpio_tab[GPIO0][27].in_out = GPIO_IN; /* EXT_EBC_REQ */
gpio_tab[GPIO0][27].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][29].in_out = GPIO_OUT; /* EBC_EXT_HDLA */
gpio_tab[GPIO0][29].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][30].in_out = GPIO_OUT; /* EBC_EXT_ACK */
gpio_tab[GPIO0][30].alt_nb = GPIO_ALT1;
gpio_tab[GPIO0][31].in_out = GPIO_OUT; /* EBC_EXR_BUSREQ */
gpio_tab[GPIO0][31].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_usb2_device_ios().
+----------------------------------------------------------------------------*/
void update_usb2_device_ios(void)
{
gpio_tab[GPIO0][26].in_out = GPIO_IN; /* USB2D_RXVALID */
gpio_tab[GPIO0][26].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][27].in_out = GPIO_IN; /* USB2D_RXERROR */
gpio_tab[GPIO0][27].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][28].in_out = GPIO_OUT; /* USB2D_TXVALID */
gpio_tab[GPIO0][28].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][29].in_out = GPIO_OUT; /* USB2D_PAD_SUSPNDM */
gpio_tab[GPIO0][29].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][30].in_out = GPIO_OUT; /* USB2D_XCVRSELECT */
gpio_tab[GPIO0][30].alt_nb = GPIO_ALT2;
gpio_tab[GPIO0][31].in_out = GPIO_OUT; /* USB2D_TERMSELECT */
gpio_tab[GPIO0][31].alt_nb = GPIO_ALT2;
gpio_tab[GPIO1][0].in_out = GPIO_OUT; /* USB2D_OPMODE0 */
gpio_tab[GPIO1][0].alt_nb = GPIO_ALT1;
gpio_tab[GPIO1][1].in_out = GPIO_OUT; /* USB2D_OPMODE1 */
gpio_tab[GPIO1][1].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| update_pci_patch_ios().
+----------------------------------------------------------------------------*/
void update_pci_patch_ios(void)
{
gpio_tab[GPIO0][29].in_out = GPIO_OUT; /* EBC_EXT_HDLA */
gpio_tab[GPIO0][29].alt_nb = GPIO_ALT1;
}
/*----------------------------------------------------------------------------+
| set_chip_gpio_configuration(unsigned char gpio_core)
| Put the core impacted by clock modification and sharing in reset.
| Config the select registers to resolve the sharing depending of the config.
| Configure the GPIO registers.
|
+----------------------------------------------------------------------------*/
void set_chip_gpio_configuration(unsigned char gpio_core)
{
unsigned char i=0, j=0, reg_offset = 0;
unsigned long gpio_reg, gpio_core_add;
/* GPIO config of the GPIOs 0 to 31 */
for (i=0; i<GPIO_MAX; i++, j++)
{
if (i == GPIO_MAX/2)
{
reg_offset = 4;
j = i-16;
}
gpio_core_add = gpio_tab[gpio_core][i].add;
if ( (gpio_tab[gpio_core][i].in_out == GPIO_IN) ||
(gpio_tab[gpio_core][i].in_out == GPIO_BI ))
{
switch (gpio_tab[gpio_core][i].alt_nb)
{
case GPIO_SEL:
break;
case GPIO_ALT1:
gpio_reg = in32(GPIO_IS1(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
out32(GPIO_IS1(gpio_core_add+reg_offset), gpio_reg);
break;
case GPIO_ALT2:
gpio_reg = in32(GPIO_IS2(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
out32(GPIO_IS2(gpio_core_add+reg_offset), gpio_reg);
break;
case GPIO_ALT3:
gpio_reg = in32(GPIO_IS3(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2));
out32(GPIO_IS3(gpio_core_add+reg_offset), gpio_reg);
break;
}
}
if ( (gpio_tab[gpio_core][i].in_out == GPIO_OUT) ||
(gpio_tab[gpio_core][i].in_out == GPIO_BI ))
{
switch (gpio_tab[gpio_core][i].alt_nb)
{
case GPIO_SEL:
break;
case GPIO_ALT1:
gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2));
out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2));
out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
break;
case GPIO_ALT2:
gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2));
out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2));
out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
break;
case GPIO_ALT3:
gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2));
out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg);
gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) & ~(GPIO_MASK >> (j*2));
gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2));
out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg);
break;
}
}
}
}
/*----------------------------------------------------------------------------+
| force_bup_core_selection.
+----------------------------------------------------------------------------*/
void force_bup_core_selection(core_selection_t *core_select_P, config_validity_t *config_val_P)
{
/* Pointer invalid */
if (core_select_P == NULL)
{
printf("Configuration invalid pointer 1\n");
for (;;)
;
}
/* L4 Selection */
*(core_select_P+UART_CORE0) = CORE_SELECTED;
*(core_select_P+UART_CORE1) = CORE_SELECTED;
*(core_select_P+UART_CORE2) = CORE_SELECTED;
*(core_select_P+UART_CORE3) = CORE_SELECTED;
/* RMII Selection */
*(core_select_P+RMII_SEL) = CORE_SELECTED;
/* External Interrupt 0-9 selection */
*(core_select_P+UIC_0_3) = CORE_SELECTED;
*(core_select_P+UIC_4_9) = CORE_SELECTED;
*(core_select_P+SCP_CORE) = CORE_SELECTED;
*(core_select_P+DMA_CHANNEL_CD) = CORE_SELECTED;
*(core_select_P+PACKET_REJ_FUNC_AVAIL) = CORE_SELECTED;
*(core_select_P+USB1_DEVICE) = CORE_SELECTED;
if (is_nand_selected()) {
*(core_select_P+NAND_FLASH) = CORE_SELECTED;
}
*config_val_P = CONFIG_IS_VALID;
}
/*----------------------------------------------------------------------------+
| configure_ppc440ep_pins.
+----------------------------------------------------------------------------*/
void configure_ppc440ep_pins(void)
{
uart_config_nb_t uart_configuration;
config_validity_t config_val = CONFIG_IS_INVALID;
/* Create Core Selection Table */
core_selection_t ppc440ep_core_selection[MAX_CORE_SELECT_NB] =
{
CORE_NOT_SELECTED, /* IIC_CORE, */
CORE_NOT_SELECTED, /* SPC_CORE, */
CORE_NOT_SELECTED, /* DMA_CHANNEL_AB, */
CORE_NOT_SELECTED, /* UIC_4_9, */
CORE_NOT_SELECTED, /* USB2_HOST, */
CORE_NOT_SELECTED, /* DMA_CHANNEL_CD, */
CORE_NOT_SELECTED, /* USB2_DEVICE, */
CORE_NOT_SELECTED, /* PACKET_REJ_FUNC_AVAIL, */
CORE_NOT_SELECTED, /* USB1_DEVICE, */
CORE_NOT_SELECTED, /* EBC_MASTER, */
CORE_NOT_SELECTED, /* NAND_FLASH, */
CORE_NOT_SELECTED, /* UART_CORE0, */
CORE_NOT_SELECTED, /* UART_CORE1, */
CORE_NOT_SELECTED, /* UART_CORE2, */
CORE_NOT_SELECTED, /* UART_CORE3, */
CORE_NOT_SELECTED, /* MII_SEL, */
CORE_NOT_SELECTED, /* RMII_SEL, */
CORE_NOT_SELECTED, /* SMII_SEL, */
CORE_NOT_SELECTED, /* PACKET_REJ_FUNC_EN */
CORE_NOT_SELECTED, /* UIC_0_3 */
CORE_NOT_SELECTED, /* USB1_HOST */
CORE_NOT_SELECTED /* PCI_PATCH */
};
/* Table Default Initialisation + FPGA Access */
init_default_gpio();
set_chip_gpio_configuration(GPIO0);
set_chip_gpio_configuration(GPIO1);
/* Update Table */
force_bup_core_selection(ppc440ep_core_selection, &config_val);
#if 0 /* test-only */
/* If we are running PIBS 1, force known configuration */
update_core_selection_table(ppc440ep_core_selection, &config_val);
#endif
/*----------------------------------------------------------------------------+
| SDR + ios table update + fpga initialization
+----------------------------------------------------------------------------*/
unsigned long sdr0_pfc1 = 0;
unsigned long sdr0_usb0 = 0;
unsigned long sdr0_mfr = 0;
/* PCI Always selected */
/* I2C Selection */
if (ppc440ep_core_selection[IIC_CORE] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL;
iic1_selection_in_fpga();
}
/* SCP Selection */
if (ppc440ep_core_selection[SCP_CORE] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_SCP_SEL;
scp_selection_in_fpga();
}
/* UIC 0:3 Selection */
if (ppc440ep_core_selection[UIC_0_3] == CORE_SELECTED)
{
update_uic_0_3_irq_ios();
dma_a_b_unselect_in_fpga();
}
/* UIC 4:9 Selection */
if (ppc440ep_core_selection[UIC_4_9] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_DIS_MASK) | SDR0_PFC1_DIS_UICIRQ5_SEL;
update_uic_4_9_irq_ios();
}
/* DMA AB Selection */
if (ppc440ep_core_selection[DMA_CHANNEL_AB] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_DIS_MASK) | SDR0_PFC1_DIS_DMAR_SEL;
update_dma_a_b_ios();
dma_a_b_selection_in_fpga();
}
/* DMA CD Selection */
if (ppc440ep_core_selection[DMA_CHANNEL_CD] == CORE_SELECTED)
{
update_dma_c_d_ios();
dma_c_d_selection_in_fpga();
}
/* EBC Master Selection */
if (ppc440ep_core_selection[EBC_MASTER] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_ERE_MASK) | SDR0_PFC1_ERE_EXTR_SEL;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_UES_MASK) | SDR0_PFC1_UES_EBCHR_SEL;
update_ebc_master_ios();
}
/* PCI Patch Enable */
if (ppc440ep_core_selection[PCI_PATCH] == CORE_SELECTED)
{
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_UES_MASK) | SDR0_PFC1_UES_EBCHR_SEL;
update_pci_patch_ios();
}
/* USB2 Host Selection - Not Implemented in PowerPC 440EP Pass1 */
if (ppc440ep_core_selection[USB2_HOST] == CORE_SELECTED)
{
/* Not Implemented in PowerPC 440EP Pass1-Pass2 */
printf("Invalid configuration => USB2 Host selected\n");
for (;;)
;
/*usb2_host_selection_in_fpga(); */
}
/* USB2.0 Device Selection */
if (ppc440ep_core_selection[USB2_DEVICE] == CORE_SELECTED)
{
update_usb2_device_ios();
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_UES_MASK) | SDR0_PFC1_UES_USB2D_SEL;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_UPR_MASK) | SDR0_PFC1_UPR_DISABLE;
mfsdr(sdr_usb0, sdr0_usb0);
sdr0_usb0 = sdr0_usb0 &~SDR0_USB0_USB_DEVSEL_MASK;
sdr0_usb0 = sdr0_usb0 | SDR0_USB0_USB20D_DEVSEL;
mtsdr(sdr_usb0, sdr0_usb0);
usb2_device_selection_in_fpga();
}
/* USB1.1 Device Selection */
if (ppc440ep_core_selection[USB1_DEVICE] == CORE_SELECTED)
{
mfsdr(sdr_usb0, sdr0_usb0);
sdr0_usb0 = sdr0_usb0 &~SDR0_USB0_USB_DEVSEL_MASK;
sdr0_usb0 = sdr0_usb0 | SDR0_USB0_USB11D_DEVSEL;
mtsdr(sdr_usb0, sdr0_usb0);
}
/* USB1.1 Host Selection */
if (ppc440ep_core_selection[USB1_HOST] == CORE_SELECTED)
{
mfsdr(sdr_usb0, sdr0_usb0);
sdr0_usb0 = sdr0_usb0 &~SDR0_USB0_LEEN_MASK;
sdr0_usb0 = sdr0_usb0 | SDR0_USB0_LEEN_ENABLE;
mtsdr(sdr_usb0, sdr0_usb0);
}
/* NAND Flash Selection */
if (ppc440ep_core_selection[NAND_FLASH] == CORE_SELECTED)
{
update_ndfc_ios();
mtsdr(sdr_cust0, SDR0_CUST0_MUX_NDFC_SEL |
SDR0_CUST0_NDFC_ENABLE |
SDR0_CUST0_NDFC_BW_8_BIT |
SDR0_CUST0_NDFC_ARE_MASK |
SDR0_CUST0_CHIPSELGAT_EN1 |
SDR0_CUST0_CHIPSELGAT_EN2);
ndfc_selection_in_fpga();
}
else
{
/* Set Mux on EMAC */
mtsdr(sdr_cust0, SDR0_CUST0_MUX_EMAC_SEL);
}
/* MII Selection */
if (ppc440ep_core_selection[MII_SEL] == CORE_SELECTED)
{
update_zii_ios();
mfsdr(sdr_mfr, sdr0_mfr);
sdr0_mfr = (sdr0_mfr & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_MII;
mtsdr(sdr_mfr, sdr0_mfr);
set_phy_configuration_through_fpga(ZMII_CONFIGURATION_IS_MII);
}
/* RMII Selection */
if (ppc440ep_core_selection[RMII_SEL] == CORE_SELECTED)
{
update_zii_ios();
mfsdr(sdr_mfr, sdr0_mfr);
sdr0_mfr = (sdr0_mfr & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
mtsdr(sdr_mfr, sdr0_mfr);
set_phy_configuration_through_fpga(ZMII_CONFIGURATION_IS_RMII);
}
/* SMII Selection */
if (ppc440ep_core_selection[SMII_SEL] == CORE_SELECTED)
{
update_zii_ios();
mfsdr(sdr_mfr, sdr0_mfr);
sdr0_mfr = (sdr0_mfr & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_SMII;
mtsdr(sdr_mfr, sdr0_mfr);
set_phy_configuration_through_fpga(ZMII_CONFIGURATION_IS_SMII);
}
/* UART Selection */
uart_configuration = get_uart_configuration();
switch (uart_configuration)
{
case L1: /* L1 Selection */
/* UART0 8 pins Only */
/*sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U0ME_DSR_DTR; */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) |SDR0_PFC1_U0ME_CTS_RTS; /* Chip Pb */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_8PINS;
break;
case L2: /* L2 Selection */
/* UART0 and UART1 4 pins */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U1ME_DSR_DTR;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_4PINS;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) | SDR0_PFC1_U1ME_DSR_DTR;
break;
case L3: /* L3 Selection */
/* UART0 4 pins, UART1 and UART2 2 pins */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U1ME_DSR_DTR;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_4PINS;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) | SDR0_PFC1_U1ME_DSR_DTR;
break;
case L4: /* L4 Selection */
/* UART0, UART1, UART2 and UART3 2 pins */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U0ME_DSR_DTR;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_4PINS;
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) | SDR0_PFC1_U1ME_DSR_DTR;
break;
}
update_uart_ios(uart_configuration);
/* UART Selection in all cases */
uart_selection_in_fpga(uart_configuration);
/* Packet Reject Function Available */
if (ppc440ep_core_selection[PACKET_REJ_FUNC_AVAIL] == CORE_SELECTED)
{
/* Set UPR Bit in SDR0_PFC1 Register */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_UPR_MASK) | SDR0_PFC1_UPR_ENABLE;
}
/* Packet Reject Function Enable */
if (ppc440ep_core_selection[PACKET_REJ_FUNC_EN] == CORE_SELECTED)
{
mfsdr(sdr_mfr, sdr0_mfr);
sdr0_mfr = (sdr0_mfr & ~SDR0_MFR_PKT_REJ_MASK) | SDR0_MFR_PKT_REJ_EN;;
mtsdr(sdr_mfr, sdr0_mfr);
}
/* Perform effective access to hardware */
mtsdr(sdr_pfc1, sdr0_pfc1);
set_chip_gpio_configuration(GPIO0);
set_chip_gpio_configuration(GPIO1);
/* USB2.0 Device Reset must be done after GPIO setting */
if (ppc440ep_core_selection[USB2_DEVICE] == CORE_SELECTED)
usb2_device_reset_through_fpga();
}
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