From 407843a582560fc5231299561ab3c2b6b6cd3397 Mon Sep 17 00:00:00 2001 From: Matthias Fuchs Date: Fri, 28 Dec 2007 17:07:18 +0100 Subject: ppc4xx: Add FPGA support and BSP commands for PMC440 boards This patch adds some BSP commands and FPGA booting support for esd's PMC440 boards. Signed-off-by: Matthias Fuchs --- board/esd/pmc440/cmd_pmc440.c | 558 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 558 insertions(+) create mode 100644 board/esd/pmc440/cmd_pmc440.c (limited to 'board/esd/pmc440/cmd_pmc440.c') diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c new file mode 100644 index 0000000000..d588d8ca9b --- /dev/null +++ b/board/esd/pmc440/cmd_pmc440.c @@ -0,0 +1,558 @@ +/* + * (C) Copyright 2007 + * Matthias Fuchs, esd Gmbh, matthias.fuchs@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 +#include +#include +#include +#include + +#include "pmc440.h" + +int is_monarch(void); +int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); +int eeprom_write_enable(unsigned dev_addr, int state); + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CMD_BSP) + +static int got_fifoirq; +static int got_hcirq; + +int fpga_interrupt(u32 arg) +{ + pmc440_fpga_t *fpga = (pmc440_fpga_t *)arg; + int rc = -1; /* not for us */ + u32 status = FPGA_IN32(&fpga->status); + + /* check for interrupt from fifo module */ + if (status & STATUS_FIFO_ISF) { + /* disable this int source */ + FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_FIFOIE_GATE); + rc = 0; + got_fifoirq = 1; /* trigger backend */ + } + + if (status & STATUS_HOST_ISF) { + FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_HCINT_GATE); + rc = 0; + got_hcirq = 1; + } + + return rc; +} + + +int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA; + + got_hcirq = 0; + + FPGA_CLRBITS(&fpga->ctrla, CTRL_HOST_IE); + FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_HCINT_GATE); + + irq_install_handler(IRQ0_FPGA, + (interrupt_handler_t *)fpga_interrupt, + fpga); + + FPGA_SETBITS(&fpga->ctrla, CTRL_HOST_IE); + + while (!got_hcirq) { + /* Abort if ctrl-c was pressed */ + if (ctrlc()) { + puts("\nAbort\n"); + break; + } + } + if (got_hcirq) + printf("Got interrupt!\n"); + + FPGA_CLRBITS(&fpga->ctrla, CTRL_HOST_IE); + irq_free_handler(IRQ0_FPGA); + return 0; +} +U_BOOT_CMD( + waithci, 1, 1, do_waithci, + "waithci - Wait for host control interrupt\n", + NULL + ); + + +void dump_fifo(pmc440_fpga_t *fpga, int f, int *n) +{ + u32 ctrl; + + while (!((ctrl = FPGA_IN32(&fpga->fifo[f].ctrl)) & FIFO_EMPTY)) { + printf("%5d %d %3d %08x", + (*n)++, f, ctrl & (FIFO_LEVEL_MASK | FIFO_FULL), + FPGA_IN32(&fpga->fifo[f].data)); + if (ctrl & FIFO_OVERFLOW) { + printf(" OVERFLOW\n"); + FPGA_CLRBITS(&fpga->fifo[f].ctrl, FIFO_OVERFLOW); + } else + printf("\n"); + } +} + + +int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA; + int i; + int n = 0; + u32 ctrl, data, f; + char str[] = "\\|/-"; + int abort = 0; + int count = 0; + int count2 = 0; + + switch (argc) { + case 1: + /* print all fifos status information */ + printf("fifo level status\n"); + printf("______________________________\n"); + for (i=0; ififo[i].ctrl); + printf(" %d %3d %s%s%s %s\n", + i, ctrl & (FIFO_LEVEL_MASK | FIFO_FULL), + ctrl & FIFO_FULL ? "FULL " : "", + ctrl & FIFO_EMPTY ? "EMPTY " : "", + ctrl & (FIFO_FULL|FIFO_EMPTY) ? "" : "NOT EMPTY", + ctrl & FIFO_OVERFLOW ? "OVERFLOW" : ""); + } + break; + + case 2: + /* completely read out fifo 'n' */ + if (!strcmp(argv[1],"read")) { + printf(" # fifo level data\n"); + printf("______________________________\n"); + + for (i=0; ihostctrl, + HOSTCTRL_FIFOIE_GATE | HOSTCTRL_FIFOIE_FLAG); + for (i=0; ififo[i].ctrl, FIFO_IE); + } + + while (1) { + /* wait loop */ + while (!got_fifoirq) { + count++; + if (!(count % 100)) { + count2++; + putc(0x08); /* backspace */ + putc(str[count2 % 4]); + } + + /* Abort if ctrl-c was pressed */ + if ((abort = ctrlc())) { + puts("\nAbort\n"); + break; + } + udelay(1000); + } + if (abort) + break; + + /* simple fifo backend */ + if (got_fifoirq) { + for (i=0; ihostctrl, + HOSTCTRL_FIFOIE_GATE | HOSTCTRL_FIFOIE_FLAG); + } + } + + /* disable all fifo interrupts */ + FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_FIFOIE_GATE); + for (i=0; ififo[i].ctrl, FIFO_IE); + + irq_free_handler(IRQ0_FPGA); + + } else { + printf("Usage:\nfifo %s\n", cmdtp->help); + return 1; + } + break; + + case 4: + case 5: + if (!strcmp(argv[1],"write")) { + /* get fifo number or fifo address */ + f = simple_strtoul(argv[2], NULL, 16); + + /* data paramter */ + data = simple_strtoul(argv[3], NULL, 16); + + /* get optional count parameter */ + n = 1; + if (argc >= 5) + n = (int)simple_strtoul(argv[4], NULL, 10); + + if (f < FIFO_COUNT) { + printf("writing %d x %08x to fifo %d\n", + n, data, f); + for (i=0; ififo[f].data, data); + } else { + printf("writing %d x %08x to fifo port at address %08x\n", + n, data, f); + for (i=0; ihelp); + return 1; + } + break; + + default: + printf("Usage:\nfifo %s\n", cmdtp->help); + return 1; + } + return 0; +} +U_BOOT_CMD( + fifo, 5, 1, do_fifo, + "fifo - Fifo module operations\n", + "wait\nfifo read\n" + "fifo write fifo(0..3) data [cnt=1]\n" + "fifo write address(>=4) data [cnt=1]\n" + " - without arguments: print all fifo's status\n" + " - with 'wait' argument: interrupt driven read from all fifos\n" + " - with 'read' argument: read current contents from all fifos\n" + " - with 'write' argument: write 'data' 'cnt' times to 'fifo' or 'address'\n" + ); + + +int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong sdsdp[5]; + ulong delay; + int count=16; + + if (argc < 2) { + printf("Usage:\nsbe %s\n", cmdtp->help); + return -1; + } + + if (argc > 1) { + if (!strcmp(argv[1], "400")) { + /* PLB=133MHz, PLB/PCI=4 */ + printf("Bootstrapping for 400MHz\n"); + sdsdp[0]=0x8678624e; + sdsdp[1]=0x0947a030; + sdsdp[2]=0x40082350; + sdsdp[3]=0x0d050000; + } else if (!strcmp(argv[1], "533")) { + /* PLB=133MHz, PLB/PCI=3 */ + printf("Bootstrapping for 533MHz\n"); + sdsdp[0]=0x87788252; + sdsdp[1]=0x095fa030; + sdsdp[2]=0x40082350; + sdsdp[3]=0x0d050000; + } else if (!strcmp(argv[1], "667")) { + /* PLB=133MHz, PLB/PCI=4 */ + printf("Bootstrapping for 667MHz\n"); + sdsdp[0]=0x8778a256; + sdsdp[1]=0x0947a030; + sdsdp[2]=0x40082350; + sdsdp[3]=0x0d050000; + } else if (!strcmp(argv[1], "test")) { + /* TODO: this will replace the 667 MHz config above. + * But it needs some more testing on a real 667 MHz CPU. + */ + printf("Bootstrapping for test (667MHz PLB=133PLB PLB/PCI=3)\n"); + sdsdp[0]=0x8778a256; + sdsdp[1]=0x095fa030; + sdsdp[2]=0x40082350; + sdsdp[3]=0x0d050000; + } else { + printf("Usage:\nsbe %s\n", cmdtp->help); + return -1; + } + } + + if (argc > 2) { + sdsdp[4] = 0; + if (argv[2][0]=='1') + sdsdp[4]=0x19750100; + else if (argv[2][0]=='0') + sdsdp[4]=0x19750000; + if (sdsdp[4]) + count += 4; + } + + if (argc > 3) { + delay = simple_strtoul(argv[3], NULL, 10); + if (delay > 20) + delay = 20; + sdsdp[4] |= delay; + } + + printf("Writing boot EEPROM ...\n"); + if (bootstrap_eeprom_write(CFG_I2C_BOOT_EEPROM_ADDR, + 0, (uchar*)sdsdp, count) != 0) + printf("bootstrap_eeprom_write failed\n"); + else + printf("done (dump via 'i2c md 52 0.1 14')\n"); + + return 0; +} +U_BOOT_CMD( + sbe, 4, 0, do_setup_bootstrap_eeprom, + "sbe - setup bootstrap eeprom\n", + " [ []]" + ); + + +#if defined(CONFIG_PRAM) +#include +extern env_t *env_ptr; + +int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + u32 memsize; + u32 pram, env_base; + char *v; + u32 param; + ulong *lptr; + + memsize = gd->bd->bi_memsize; + + v = getenv("pram"); + if (v) + pram = simple_strtoul(v, NULL, 10); + else { + printf("Error: pram undefined. Please define pram in KiB\n"); + return 1; + } + + param = memsize - (pram << 10); + printf("PARAM: @%08x\n", param); + + memset((void*)param, 0, (pram << 10)); + env_base = memsize - 4096 - ((CFG_ENV_SIZE + 4096) & ~(4096-1)); + memcpy((void*)env_base, env_ptr, CFG_ENV_SIZE); + + lptr = (ulong*)memsize; + *(--lptr) = CFG_ENV_SIZE; + *(--lptr) = memsize - env_base; + *(--lptr) = crc32(0, (void*)(memsize - 0x08), 0x08); + *(--lptr) = 0; + + /* make sure data can be accessed through PCI */ + flush_dcache_range(param, param + (pram << 10) - 1); + return 0; +} +U_BOOT_CMD( + painit, 1, 1, do_painit, + "painit - prepare PciAccess system\n", + NULL + ); +#endif /* CONFIG_PRAM */ + + +int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (argc > 1) { + if (argv[1][0] == '0') { + /* assert */ + printf("self-reset# asserted\n"); + out_be32((void*)GPIO0_TCR, + in_be32((void*)GPIO0_TCR) | GPIO0_SELF_RST); + } else { + /* deassert */ + printf("self-reset# deasserted\n"); + out_be32((void*)GPIO0_TCR, + in_be32((void*)GPIO0_TCR) & ~GPIO0_SELF_RST); + } + } else { + printf("self-reset# is %s\n", + in_be32((void*)GPIO0_TCR) & GPIO0_SELF_RST ? + "active" : "inactive"); + } + + return 0; +} +U_BOOT_CMD( + selfreset, 2, 1, do_selfreset, + "selfreset- assert self-reset# signal\n", + NULL + ); + + +int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA; + + /* requiers bootet FPGA and PLD_IOEN_N active */ + if (in_be32((void*)GPIO1_OR) & GPIO1_IOEN_N) { + printf("Error: resetout requires a bootet FPGA\n"); + return -1; + } + + if (argc > 1) { + if (argv[1][0] == '0') { + /* assert */ + printf("PMC-RESETOUT# asserted\n"); + FPGA_OUT32(&fpga->hostctrl, + HOSTCTRL_PMCRSTOUT_GATE); + } else { + /* deassert */ + printf("PMC-RESETOUT# deasserted\n"); + FPGA_OUT32(&fpga->hostctrl, + HOSTCTRL_PMCRSTOUT_GATE | HOSTCTRL_PMCRSTOUT_FLAG); + } + } else { + printf("PMC-RESETOUT# is %s\n", + FPGA_IN32(&fpga->hostctrl) & HOSTCTRL_PMCRSTOUT_FLAG ? + "inactive" : "active"); + } + + return 0; +} +U_BOOT_CMD( + resetout, 2, 1, do_resetout, + "resetout - assert PMC-RESETOUT# signal\n", + NULL + ); + + +int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (is_monarch()) { + printf("This command is only supported in non-monarch mode\n"); + return -1; + } + + if (argc > 1) { + if (argv[1][0] == '0') { + /* assert */ + printf("inta# asserted\n"); + out_be32((void*)GPIO1_TCR, + in_be32((void*)GPIO1_TCR) | GPIO1_INTA_FAKE); + } else { + /* deassert */ + printf("inta# deasserted\n"); + out_be32((void*)GPIO1_TCR, + in_be32((void*)GPIO1_TCR) & ~GPIO1_INTA_FAKE); + } + } else { + printf("inta# is %s\n", in_be32((void*)GPIO1_TCR) & GPIO1_INTA_FAKE ? "active" : "inactive"); + } + return 0; +} +U_BOOT_CMD( + inta, 2, 1, do_inta, + "inta - Assert/Deassert or query INTA# state in non-monarch mode\n", + NULL + ); + + +/* test-only */ +int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong pciaddr; + + if (argc > 1) { + pciaddr = simple_strtoul(argv[1], NULL, 16); + + pciaddr &= 0xf0000000; + + /* map PCI address at 0xc0000000 in PLB space */ + out32r(PCIX0_PMM1MA, 0x00000000); /* PMM1 Mask/Attribute - disabled b4 setting */ + out32r(PCIX0_PMM1LA, 0xc0000000); /* PMM1 Local Address */ + out32r(PCIX0_PMM1PCILA, pciaddr); /* PMM1 PCI Low Address */ + out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM1 PCI High Address */ + out32r(PCIX0_PMM1MA, 0xf0000001); /* 256MB + No prefetching, and enable region */ + } else { + printf("Usage:\npmm %s\n", cmdtp->help); + } + return 0; +} +U_BOOT_CMD( + pmm, 2, 1, do_pmm, + "pmm - Setup pmm[1] registers\n", + " (pciaddr will be aligned to 256MB)\n" + ); + +#if defined(CFG_EEPROM_WREN) +int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int query = argc == 1; + int state = 0; + + if (query) { + /* Query write access state. */ + state = eeprom_write_enable(CFG_I2C_EEPROM_ADDR, -1); + if (state < 0) { + puts("Query of write access state failed.\n"); + } else { + printf("Write access for device 0x%0x is %sabled.\n", + CFG_I2C_EEPROM_ADDR, state ? "en" : "dis"); + state = 0; + } + } else { + if ('0' == argv[1][0]) { + /* Disable write access. */ + state = eeprom_write_enable(CFG_I2C_EEPROM_ADDR, 0); + } else { + /* Enable write access. */ + state = eeprom_write_enable(CFG_I2C_EEPROM_ADDR, 1); + } + if (state < 0) { + puts("Setup of write access state failed.\n"); + } + } + + return state; +} +U_BOOT_CMD(eepwren, 2, 0, do_eep_wren, + "eepwren - Enable / disable / query EEPROM write access\n", + NULL); +#endif /* #if defined(CFG_EEPROM_WREN) */ + +#endif /* CONFIG_CMD_BSP */ -- cgit v1.2.1