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author | wdenk <wdenk> | 2002-11-03 00:24:07 (GMT) |
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committer | wdenk <wdenk> | 2002-11-03 00:24:07 (GMT) |
commit | c609719b8d1b2dca590e0ed499016d041203e403 (patch) | |
tree | 7ea1755d80903ff972f312a249eb856061d40e15 /board/esd/common | |
parent | 5b1d713721c3ea02549940133f09236783dda1f9 (diff) | |
download | u-boot-c609719b8d1b2dca590e0ed499016d041203e403.tar.xz |
Initial revision
Diffstat (limited to 'board/esd/common')
-rw-r--r-- | board/esd/common/fpga.c | 262 | ||||
-rw-r--r-- | board/esd/common/pci.c | 202 |
2 files changed, 464 insertions, 0 deletions
diff --git a/board/esd/common/fpga.c b/board/esd/common/fpga.c new file mode 100644 index 0000000..666b490 --- /dev/null +++ b/board/esd/common/fpga.c @@ -0,0 +1,262 @@ +/* + * (C) Copyright 2001 + * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 <asm/processor.h> +#include <command.h> + +/* ------------------------------------------------------------------------- */ + +#ifdef FPGA_DEBUG +#define DBG(x...) printf(x) +#else +#define DBG(x...) +#endif /* DEBUG */ + +#define MAX_ONES 226 + +#define IBM405GP_GPIO0_OR 0xef600700 /* GPIO Output */ +#define IBM405GP_GPIO0_TCR 0xef600704 /* GPIO Three-State Control */ +#define IBM405GP_GPIO0_ODR 0xef600718 /* GPIO Open Drain */ +#define IBM405GP_GPIO0_IR 0xef60071c /* GPIO Input */ + +#ifdef CFG_FPGA_PRG +# define FPGA_PRG CFG_FPGA_PRG /* FPGA program pin (ppc output)*/ +# define FPGA_CLK CFG_FPGA_CLK /* FPGA clk pin (ppc output) */ +# define FPGA_DATA CFG_FPGA_DATA /* FPGA data pin (ppc output) */ +# define FPGA_DONE CFG_FPGA_DONE /* FPGA done pin (ppc input) */ +# define FPGA_INIT CFG_FPGA_INIT /* FPGA init pin (ppc input) */ +#else +# define FPGA_PRG 0x04000000 /* FPGA program pin (ppc output) */ +# define FPGA_CLK 0x02000000 /* FPGA clk pin (ppc output) */ +# define FPGA_DATA 0x01000000 /* FPGA data pin (ppc output) */ +# define FPGA_DONE 0x00800000 /* FPGA done pin (ppc input) */ +# define FPGA_INIT 0x00400000 /* FPGA init pin (ppc input) */ +#endif + +#define ERROR_FPGA_PRG_INIT_LOW -1 /* Timeout after PRG* asserted */ +#define ERROR_FPGA_PRG_INIT_HIGH -2 /* Timeout after PRG* deasserted */ +#define ERROR_FPGA_PRG_DONE -3 /* Timeout after programming */ + +#define SET_FPGA(data) out32(IBM405GP_GPIO0_OR, data) + +#define FPGA_WRITE_1 { \ + SET_FPGA(FPGA_PRG | FPGA_DATA); /* set clock to 0 */ \ + SET_FPGA(FPGA_PRG | FPGA_DATA); /* set data to 1 */ \ + SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA); /* set clock to 1 */ \ + SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ + +#define FPGA_WRITE_0 { \ + SET_FPGA(FPGA_PRG | FPGA_DATA); /* set clock to 0 */ \ + SET_FPGA(FPGA_PRG); /* set data to 0 */ \ + SET_FPGA(FPGA_PRG | FPGA_CLK); /* set clock to 1 */ \ + SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ + + +static int fpga_boot(unsigned char *fpgadata, int size) +{ + int i,index,len; + int count; +#ifdef CFG_FPGA_SPARTAN2 + int j; +#else + unsigned char b; + int bit; +#endif + + /* display infos on fpgaimage */ + index = 15; + for (i=0; i<4; i++) + { + len = fpgadata[index]; + DBG("FPGA: %s\n", &(fpgadata[index+1])); + index += len+3; + } + +#ifdef CFG_FPGA_SPARTAN2 + /* search for preamble 0xFFFFFFFF */ + while (1) + { + if ((fpgadata[index] == 0xff) && (fpgadata[index+1] == 0xff) && + (fpgadata[index+2] == 0xff) && (fpgadata[index+3] == 0xff)) + break; /* preamble found */ + else + index++; + } +#else + /* search for preamble 0xFF2X */ + for (index = 0; index < size-1 ; index++) + { + if ((fpgadata[index] == 0xff) && ((fpgadata[index+1] & 0xf0) == 0x30)) + break; + } + index += 2; +#endif + + DBG("FPGA: configdata starts at position 0x%x\n",index); + DBG("FPGA: length of fpga-data %d\n", size-index); + + /* + * Setup port pins for fpga programming + */ + out32(IBM405GP_GPIO0_ODR, 0x00000000); /* no open drain pins */ + out32(IBM405GP_GPIO0_TCR, FPGA_PRG | FPGA_CLK | FPGA_DATA); /* setup for output */ + out32(IBM405GP_GPIO0_OR, FPGA_PRG | FPGA_CLK | FPGA_DATA); /* set output pins to high */ + + DBG("%s, ",((in32(IBM405GP_GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); + DBG("%s\n",((in32(IBM405GP_GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + + /* + * Init fpga by asserting and deasserting PROGRAM* + */ + SET_FPGA(FPGA_CLK | FPGA_DATA); + + /* Wait for FPGA init line low */ + count = 0; + while (in32(IBM405GP_GPIO0_IR) & FPGA_INIT) + { + udelay(1000); /* wait 1ms */ + /* Check for timeout - 100us max, so use 3ms */ + if (count++ > 3) + { + DBG("FPGA: Booting failed!\n"); + return ERROR_FPGA_PRG_INIT_LOW; + } + } + + DBG("%s, ",((in32(IBM405GP_GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); + DBG("%s\n",((in32(IBM405GP_GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + + /* deassert PROGRAM* */ + SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA); + + /* Wait for FPGA end of init period . */ + count = 0; + while (!(in32(IBM405GP_GPIO0_IR) & FPGA_INIT)) + { + udelay(1000); /* wait 1ms */ + /* Check for timeout */ + if (count++ > 3) + { + DBG("FPGA: Booting failed!\n"); + return ERROR_FPGA_PRG_INIT_HIGH; + } + } + + DBG("%s, ",((in32(IBM405GP_GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); + DBG("%s\n",((in32(IBM405GP_GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + + DBG("write configuration data into fpga\n"); + /* write configuration-data into fpga... */ + +#ifdef CFG_FPGA_SPARTAN2 + /* + * Load uncompressed image into fpga + */ + for (i=index; i<size; i++) + { + for (j=0; j<8; j++) + { + if ((fpgadata[i] & 0x80) == 0x80) + { + FPGA_WRITE_1; + } + else + { + FPGA_WRITE_0; + } + fpgadata[i] <<= 1; + } + } +#else + /* send 0xff 0x20 */ + FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; + FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; + FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_1; FPGA_WRITE_0; + FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_0; + + /* + ** Bit_DeCompression + ** Code 1 .. maxOnes : n '1's followed by '0' + ** maxOnes + 1 .. maxOnes + 1 : n - 1 '1's no '0' + ** maxOnes + 2 .. 254 : n - (maxOnes + 2) '0's followed by '1' + ** 255 : '1' + */ + + for (i=index; i<size; i++) + { + b = fpgadata[i]; + if ((b >= 1) && (b <= MAX_ONES)) + { + for(bit=0; bit<b; bit++) + { + FPGA_WRITE_1; + } + FPGA_WRITE_0; + } + else if (b == (MAX_ONES+1)) + { + for(bit=1; bit<b; bit++) + { + FPGA_WRITE_1; + } + } + else if ((b >= (MAX_ONES+2)) && (b <= 254)) + { + for(bit=0; bit<(b-(MAX_ONES+2)); bit++) + { + FPGA_WRITE_0; + } + FPGA_WRITE_1; + } + else if (b == 255) + { + FPGA_WRITE_1; + } + } +#endif + + DBG("%s, ",((in32(IBM405GP_GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); + DBG("%s\n",((in32(IBM405GP_GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + + /* + * Check if fpga's DONE signal - correctly booted ? + */ + + /* Wait for FPGA end of programming period . */ + count = 0; + while (!(in32(IBM405GP_GPIO0_IR) & FPGA_DONE)) + { + udelay(1000); /* wait 1ms */ + /* Check for timeout */ + if (count++ > 3) + { + DBG("FPGA: Booting failed!\n"); + return ERROR_FPGA_PRG_DONE; + } + } + + DBG("FPGA: Booting successful!\n"); + return 0; +} diff --git a/board/esd/common/pci.c b/board/esd/common/pci.c new file mode 100644 index 0000000..f8f180c --- /dev/null +++ b/board/esd/common/pci.c @@ -0,0 +1,202 @@ +/* + * (C) Copyright 2001 + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 <ppc4xx.h> +#include <asm/processor.h> +#include <pci.h> + + +u_long pci9054_iobase; + + +#define PCI_PRIMARY_CAR (0x500000dc) /* PCI config address reg */ +#define PCI_PRIMARY_CDR (0x80000000) /* PCI config data reg */ + + +/*-----------------------------------------------------------------------------+ +| Subroutine: pci9054_read_config_dword +| Description: Read a PCI configuration register +| Inputs: +| hose PCI Controller +| dev PCI Bus+Device+Function number +| offset Configuration register number +| value Address of the configuration register value +| Return value: +| 0 Successful ++-----------------------------------------------------------------------------*/ +int pci9054_read_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32* value) +{ + unsigned long conAdrVal; + unsigned long val; + + /* generate coded value for CON_ADR register */ + conAdrVal = dev | (offset & 0xfc) | 0x80000000; + + /* Load the CON_ADR (CAR) value first, then read from CON_DATA (CDR) */ + *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal; + + /* Note: *pResult comes back as -1 if machine check happened */ + val = in32r(PCI_PRIMARY_CDR); + + *value = (unsigned long) val; + + out32r(PCI_PRIMARY_CAR, 0); + + if ((*(unsigned long *)0x50000304) & 0x60000000) + { + /* clear pci master/target abort bits */ + *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304; + } + + return 0; +} + +/*-----------------------------------------------------------------------------+ +| Subroutine: pci9054_write_config_dword +| Description: Write a PCI configuration register. +| Inputs: +| hose PCI Controller +| dev PCI Bus+Device+Function number +| offset Configuration register number +| Value Configuration register value +| Return value: +| 0 Successful +| Updated for pass2 errata #6. Need to disable interrupts and clear the +| PCICFGADR reg after writing the PCICFGDATA reg. ++-----------------------------------------------------------------------------*/ +int pci9054_write_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + unsigned long conAdrVal; + + conAdrVal = dev | (offset & 0xfc) | 0x80000000; + + *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal; + + out32r(PCI_PRIMARY_CDR, value); + + out32r(PCI_PRIMARY_CAR, 0); + + /* clear pci master/target abort bits */ + *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304; + + return (0); +} + +/*----------------------------------------------------------------------- + */ + +#ifdef CONFIG_DASA_SIM +static void pci_dasa_sim_config_pci9054(struct pci_controller *hose, pci_dev_t dev, + struct pci_config_table *_) +{ + unsigned int iobase; + unsigned short status = 0; + unsigned char timer; + + /* + * Configure PLX PCI9054 + */ + pci_read_config_word(CFG_PCI9054_DEV_FN, PCI_COMMAND, &status); + status |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; + pci_write_config_word(CFG_PCI9054_DEV_FN, PCI_COMMAND, status); + + /* Check the latency timer for values >= 0x60. + */ + pci_read_config_byte(CFG_PCI9054_DEV_FN, PCI_LATENCY_TIMER, &timer); + if (timer < 0x60) + { + pci_write_config_byte(CFG_PCI9054_DEV_FN, PCI_LATENCY_TIMER, 0x60); + } + + /* Set I/O base register. + */ + pci_write_config_dword(CFG_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, CFG_PCI9054_IOBASE); + pci_read_config_dword(CFG_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, &iobase); + + pci9054_iobase = pci_mem_to_phys(CFG_PCI9054_DEV_FN, iobase & PCI_BASE_ADDRESS_MEM_MASK); + + if (pci9054_iobase == 0xffffffff) + { + printf("Error: Can not set I/O base register.\n"); + return; + } +} +#endif + +static struct pci_config_table pci9054_config_table[] = { +#ifndef CONFIG_PCI_PNP + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + PCI_BUS(CFG_ETH_DEV_FN), PCI_DEV(CFG_ETH_DEV_FN), PCI_FUNC(CFG_ETH_DEV_FN), + pci_cfgfunc_config_device, { CFG_ETH_IOBASE, + CFG_ETH_IOBASE, + PCI_COMMAND_IO | PCI_COMMAND_MASTER }}, +#ifdef CONFIG_DASA_SIM + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + PCI_BUS(CFG_PCI9054_DEV_FN), PCI_DEV(CFG_PCI9054_DEV_FN), PCI_FUNC(CFG_PCI9054_DEV_FN), + pci_dasa_sim_config_pci9054 }, +#endif +#endif + { } +}; + +static struct pci_controller pci9054_hose = { + config_table: pci9054_config_table, +}; + +void pci_init(void) +{ + struct pci_controller *hose = &pci9054_hose; + + /* + * Register the hose + */ + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* System memory space */ + pci_set_region(hose->regions + 0, + 0x00000000, 0x00000000, 0x01000000, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* PCI Memory space */ + pci_set_region(hose->regions + 1, + 0x00000000, 0xc0000000, 0x10000000, + PCI_REGION_MEM); + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + pci9054_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + pci9054_write_config_dword); + + hose->region_count = 2; + + pci_register_hose(hose); + + hose->last_busno = pci_hose_scan(hose); +} |