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-rw-r--r--board/esd/pmc440/cmd_pmc440.c558
1 files changed, 558 insertions, 0 deletions
diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
new file mode 100644
index 0000000..d588d8c
--- /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 <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/cache.h>
+#include <asm/processor.h>
+
+#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; 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++)
+ out32(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 - 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",
+ "<cpufreq:400|533|667> [<console-uart:0|1> [<bringup delay (0..20s)>]]"
+ );
+
+
+#if defined(CONFIG_PRAM)
+#include <environment.h>
+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> (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 */
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