diff options
Diffstat (limited to 'roms/u-boot/board/esd/pmc440/cmd_pmc440.c')
| -rw-r--r-- | roms/u-boot/board/esd/pmc440/cmd_pmc440.c | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/roms/u-boot/board/esd/pmc440/cmd_pmc440.c b/roms/u-boot/board/esd/pmc440/cmd_pmc440.c new file mode 100644 index 00000000..3481e464 --- /dev/null +++ b/roms/u-boot/board/esd/pmc440/cmd_pmc440.c @@ -0,0 +1,553 @@ +/* + * (C) Copyright 2007-2008 + * Matthias Fuchs, esd Gmbh, matthias.fuchs@esd-electronics.com. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <command.h> +#include <asm/io.h> +#include <asm/cache.h> +#include <asm/processor.h> +#if defined(CONFIG_LOGBUFFER) +#include <logbuff.h> +#endif + +#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 * const 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, + "Wait for host control interrupt", + "" +); + +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 * const 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; i<FIFO_COUNT; i++) { + ctrl = FPGA_IN32(&fpga->fifo[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; i<FIFO_COUNT; i++) + dump_fifo(fpga, i, &n); + + } else if (!strcmp(argv[1],"wait")) { + got_fifoirq = 0; + + irq_install_handler(IRQ0_FPGA, + (interrupt_handler_t *)fpga_interrupt, + fpga); + + printf(" # fifo level data\n"); + printf("______________________________\n"); + + /* enable all fifo interrupts */ + FPGA_OUT32(&fpga->hostctrl, + HOSTCTRL_FIFOIE_GATE | HOSTCTRL_FIFOIE_FLAG); + for (i=0; i<FIFO_COUNT; i++) { + /* enable interrupts from all fifos */ + FPGA_SETBITS(&fpga->fifo[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; i<FIFO_COUNT; i++) + dump_fifo(fpga, i, &n); + + got_fifoirq = 0; + /* unmask global fifo irq */ + FPGA_OUT32(&fpga->hostctrl, + HOSTCTRL_FIFOIE_GATE | + HOSTCTRL_FIFOIE_FLAG); + } + } + + /* disable all fifo interrupts */ + FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_FIFOIE_GATE); + for (i=0; i<FIFO_COUNT; i++) + FPGA_CLRBITS(&fpga->fifo[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; i<n; i++) + FPGA_OUT32(&fpga->fifo[f].data, data); + } else { + printf("writing %d x %08x to fifo port at " + "address %08x\n", + n, data, f); + for (i=0; i<n; i++) + out_be32((void *)f, data); + } + } else { + printf("Usage:\nfifo %s\n", cmdtp->help); + return 1; + } + break; + + default: + printf("Usage:\nfifo %s\n", cmdtp->help); + return 1; + } + return 0; +} +U_BOOT_CMD( + fifo, 5, 1, do_fifo, + "Fifo module operations", + "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'" +); + +int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const 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=3 */ + printf("Bootstrapping for 400MHz\n"); + sdsdp[0]=0x8678624e; + sdsdp[1]=0x095fa030; + 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=3 */ + printf("Bootstrapping for 667MHz\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(CONFIG_SYS_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, + "setup bootstrap eeprom", + "<cpufreq:400|533|667> [<console-uart:0|1> [<bringup delay (0..20s)>]]" +); + +#if defined(CONFIG_PRAM) +#include <environment.h> +#include <search.h> +#include <errno.h> + +int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + u32 pram, nextbase, base; + char *v; + u32 param; + ulong *lptr; + + env_t *envp; + char *res; + int len; + + v = getenv("pram"); + if (v) + pram = simple_strtoul(v, NULL, 10); + else { + printf("Error: pram undefined. Please define pram in KiB\n"); + return 1; + } + + base = gd->bd->bi_memsize; +#if defined(CONFIG_LOGBUFFER) + base -= LOGBUFF_LEN + LOGBUFF_OVERHEAD; +#endif + /* + * gd->bd->bi_memsize == physical ram size - CONFIG_SYS_MEM_TOP_HIDE + */ + param = base - (pram << 10); + printf("PARAM: @%08x\n", param); + debug("memsize=0x%08x, base=0x%08x\n", (u32)gd->bd->bi_memsize, base); + + /* clear entire PA ram */ + memset((void*)param, 0, (pram << 10)); + + /* reserve 4k for pointer field */ + nextbase = base - 4096; + lptr = (ulong*)(base); + + /* + * *(--lptr) = item_size; + * *(--lptr) = base - item_base = distance from field top; + */ + + /* env is first (4k aligned) */ + nextbase -= ((CONFIG_ENV_SIZE + 4096 - 1) & ~(4096 - 1)); + envp = (env_t *)nextbase; + res = (char *)envp->data; + len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + envp->crc = crc32(0, envp->data, ENV_SIZE); + + *(--lptr) = CONFIG_ENV_SIZE; /* size */ + *(--lptr) = base - nextbase; /* offset | type=0 */ + + /* free section */ + *(--lptr) = nextbase - param; /* size */ + *(--lptr) = (base - param) | 126; /* offset | type=126 */ + + /* terminate pointer field */ + *(--lptr) = crc32(0, (void*)(base - 0x10), 0x10); + *(--lptr) = 0; /* offset=0 -> terminator */ + return 0; +} +U_BOOT_CMD( + painit, 1, 1, do_painit, + "prepare PciAccess system", + "" +); +#endif /* CONFIG_PRAM */ + +int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + in_be32((void*)CONFIG_SYS_RESET_BASE); + return 0; +} +U_BOOT_CMD( + selfreset, 1, 1, do_selfreset, + "assert self-reset# signal", + "" +); + +int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const 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, + "assert PMC-RESETOUT# signal", + "" +); + +int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char * const 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, + "Assert/Deassert or query INTA# state in non-monarch mode", + "" +); + +/* test-only */ +int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + ulong pciaddr; + + if (argc > 1) { + pciaddr = simple_strtoul(argv[1], NULL, 16); + + pciaddr &= 0xf0000000; + + /* map PCI address at 0xc0000000 in PLB space */ + + /* PMM1 Mask/Attribute - disabled b4 setting */ + out32r(PCIL0_PMM1MA, 0x00000000); + /* PMM1 Local Address */ + out32r(PCIL0_PMM1LA, 0xc0000000); + /* PMM1 PCI Low Address */ + out32r(PCIL0_PMM1PCILA, pciaddr); + /* PMM1 PCI High Address */ + out32r(PCIL0_PMM1PCIHA, 0x00000000); + /* 256MB + No prefetching, and enable region */ + out32r(PCIL0_PMM1MA, 0xf0000001); + } else { + printf("Usage:\npmm %s\n", cmdtp->help); + } + return 0; +} +U_BOOT_CMD( + pmm, 2, 1, do_pmm, + "Setup pmm[1] registers", + "<pciaddr> (pciaddr will be aligned to 256MB)" +); + +#if defined(CONFIG_SYS_EEPROM_WREN) +int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int query = argc == 1; + int state = 0; + + if (query) { + /* Query write access state. */ + state = eeprom_write_enable(CONFIG_SYS_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", + CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis"); + state = 0; + } + } else { + if ('0' == argv[1][0]) { + /* Disable write access. */ + state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, 0); + } else { + /* Enable write access. */ + state = eeprom_write_enable(CONFIG_SYS_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, + "Enable / disable / query EEPROM write access", + "" +); +#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */ + +#endif /* CONFIG_CMD_BSP */ |