/*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2004
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* See file CREDITS for list of people who contributed to this
#include <asm/io.h>
#include <pci.h>
#include <405gp_pci.h>
+#include <asm/processor.h>
#include "pci405.h"
#if (CONFIG_COMMANDS & CFG_CMD_BSP)
extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+extern int do_bootvx (cmd_tbl_t *, int, int, char *[]);
+unsigned long get_dcr(unsigned short);
/*
} else {
sprintf(addr, "%08x", *ptr);
+#if 0
/*
* Boot image
*/
- printf("\nBooting image at addr 0x%s ...\n", addr);
+ if (*ptr & 0x00000001) {
+ /*
+ * Boot VxWorks image via bootvx
+ */
+ addr[strlen(addr)-1] = '0';
+ printf("\nBooting VxWorks-Image at addr 0x%s ...\n", addr);
+ setenv("loadaddr", addr);
+
+ local_args[0] = argv[0];
+ local_args[1] = NULL;
+ status = do_bootvx (cmdtp, 0, 1, local_args);
+ } else {
+ /*
+ * Boot image via bootm (normally Linux)
+ */
+ printf("\nBooting Image at addr 0x%s ...\n", addr);
+ setenv("loadaddr", addr);
+
+ local_args[0] = argv[0];
+ local_args[1] = NULL;
+ status = do_bootm (cmdtp, 0, 1, local_args);
+ }
+#else
+ /*
+ * Boot image via bootm
+ */
+ printf("\nBooting Image at addr 0x%s ...\n", addr);
setenv("loadaddr", addr);
local_args[0] = argv[0];
local_args[1] = NULL;
status = do_bootm (cmdtp, 0, 1, local_args);
+#endif
}
return 0;
);
#endif
+
+#if 1 /* test-only */
+int do_getpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int val;
+ int i;
+
+ printf("\nPCI Configuration Regs for PPC405GP:");
+ for (i=0; i<0x64; i+=4) {
+ pci_read_config_dword(PCIDEVID_405GP, i, &val);
+ if (!(i % 0x10)) {
+ printf("\n%02x: ", i);
+ }
+ printf("%08x ", val);
+ }
+ printf("\n");
+
+ return 0;
+}
+U_BOOT_CMD(
+ getpci, 1, 1, do_getpci,
+ "getpci - Print own pci configuration registers\n",
+ NULL
+);
+
+int do_setpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int val;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ val = simple_strtol (argv[2], NULL, 16);
+
+ printf("\nWriting %08x to PCI reg %08x.\n", val, addr);
+ pci_write_config_dword(PCIDEVID_405GP, addr, val);
+
+ return 0;
+}
+U_BOOT_CMD(
+ setpci, 3, 1, do_setpci,
+ "setpci - Set one pci configuration lword\n",
+ "<addr> <val>\n"
+ " - Write pci configuration lword <val> to <addr>.\n"
+);
+
+int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int i;
+
+ printf("\nDevice Configuration Registers (DCR's) for PPC405GP:");
+ for (i=0; i<=0x1e0; i++) {
+ if (!(i % 0x8)) {
+ printf("\n%04x ", i);
+ }
+ printf("%08lx ", get_dcr(i));
+ }
+ printf("\n");
+
+ return 0;
+}
+U_BOOT_CMD(
+ dumpdcr, 1, 1, do_dumpdcr,
+ "dumpdcr - Dump all DCR registers\n",
+ NULL
+);
+
+
+int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ printf("\nSpecial Purpose Registers (SPR's) for PPC405GP:");
+ printf("\n%04x %08x ", 947, mfspr(947));
+ printf("\n%04x %08x ", 9, mfspr(9));
+ printf("\n%04x %08x ", 1014, mfspr(1014));
+ printf("\n%04x %08x ", 1015, mfspr(1015));
+ printf("\n%04x %08x ", 1010, mfspr(1010));
+ printf("\n%04x %08x ", 957, mfspr(957));
+ printf("\n%04x %08x ", 1008, mfspr(1008));
+ printf("\n%04x %08x ", 1018, mfspr(1018));
+ printf("\n%04x %08x ", 954, mfspr(954));
+ printf("\n%04x %08x ", 950, mfspr(950));
+ printf("\n%04x %08x ", 951, mfspr(951));
+ printf("\n%04x %08x ", 981, mfspr(981));
+ printf("\n%04x %08x ", 980, mfspr(980));
+ printf("\n%04x %08x ", 982, mfspr(982));
+ printf("\n%04x %08x ", 1012, mfspr(1012));
+ printf("\n%04x %08x ", 1013, mfspr(1013));
+ printf("\n%04x %08x ", 948, mfspr(948));
+ printf("\n%04x %08x ", 949, mfspr(949));
+ printf("\n%04x %08x ", 1019, mfspr(1019));
+ printf("\n%04x %08x ", 979, mfspr(979));
+ printf("\n%04x %08x ", 8, mfspr(8));
+ printf("\n%04x %08x ", 945, mfspr(945));
+ printf("\n%04x %08x ", 987, mfspr(987));
+ printf("\n%04x %08x ", 287, mfspr(287));
+ printf("\n%04x %08x ", 953, mfspr(953));
+ printf("\n%04x %08x ", 955, mfspr(955));
+ printf("\n%04x %08x ", 272, mfspr(272));
+ printf("\n%04x %08x ", 273, mfspr(273));
+ printf("\n%04x %08x ", 274, mfspr(274));
+ printf("\n%04x %08x ", 275, mfspr(275));
+ printf("\n%04x %08x ", 260, mfspr(260));
+ printf("\n%04x %08x ", 276, mfspr(276));
+ printf("\n%04x %08x ", 261, mfspr(261));
+ printf("\n%04x %08x ", 277, mfspr(277));
+ printf("\n%04x %08x ", 262, mfspr(262));
+ printf("\n%04x %08x ", 278, mfspr(278));
+ printf("\n%04x %08x ", 263, mfspr(263));
+ printf("\n%04x %08x ", 279, mfspr(279));
+ printf("\n%04x %08x ", 26, mfspr(26));
+ printf("\n%04x %08x ", 27, mfspr(27));
+ printf("\n%04x %08x ", 990, mfspr(990));
+ printf("\n%04x %08x ", 991, mfspr(991));
+ printf("\n%04x %08x ", 956, mfspr(956));
+ printf("\n%04x %08x ", 284, mfspr(284));
+ printf("\n%04x %08x ", 285, mfspr(285));
+ printf("\n%04x %08x ", 986, mfspr(986));
+ printf("\n%04x %08x ", 984, mfspr(984));
+ printf("\n%04x %08x ", 256, mfspr(256));
+ printf("\n%04x %08x ", 1, mfspr(1));
+ printf("\n%04x %08x ", 944, mfspr(944));
+ printf("\n");
+
+ return 0;
+}
+U_BOOT_CMD(
+ dumpspr, 1, 1, do_dumpspr,
+ "dumpspr - Dump all SPR registers\n",
+ NULL
+);
+
+
+#define PCI0_BRDGOPT1 0x4a
+#define plb0_acr 0x87
+
+int do_getplb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned short val;
+
+ printf("PLB0_ACR=%08lx\n", get_dcr(0x87));
+ pci_read_config_word(PCIDEVID_405GP, PCI0_BRDGOPT1, &val);
+ printf("PCI0_BRDGOPT1=%04x\n", val);
+ printf("CCR0=%08x\n", mfspr(ccr0));
+
+ return 0;
+}
+U_BOOT_CMD(
+ getplb, 1, 1, do_getplb,
+ "getplb - Dump all plb arbiter registers\n",
+ NULL
+);
+
+int do_setplb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int my_acr;
+ unsigned int my_brdgopt1;
+ unsigned int my_ccr0;
+
+ my_acr = simple_strtol (argv[1], NULL, 16);
+ my_brdgopt1 = simple_strtol (argv[2], NULL, 16);
+ my_ccr0 = simple_strtol (argv[3], NULL, 16);
+
+ mtdcr(plb0_acr, my_acr);
+ pci_write_config_word(PCIDEVID_405GP, PCI0_BRDGOPT1, my_brdgopt1);
+ mtspr(ccr0, my_ccr0);
+
+ return 0;
+}
+U_BOOT_CMD(
+ setplb, 4, 1, do_setplb,
+ "setplb - Set all plb arbiter registers\n",
+ "PLB0_ACR PCI0_BRDGOPT1 CCR0\n"
+ " - Set all plb arbiter registers\n"
+);
+
+
+/***********************************************************************
+ *
+ * The following code is only for test purposes!!!!
+ * Please ignore this ugly stuff!!!!!!!!!!!!!!!!!!!
+ *
+ ***********************************************************************/
+
+#define PCI_ADDR 0xc0000000
+
+int do_writepci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int size;
+ unsigned int countmax;
+ int i;
+ int max;
+ volatile unsigned long *ptr;
+ volatile unsigned long val;
+ int loopcount = 0;
+ int test_pci_read = 0;
+ int test_pci_cfg_write = 0;
+ int test_sync = 0;
+ int test_pci_pre_read = 0;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ size = simple_strtol (argv[2], NULL, 16);
+ countmax = simple_strtol (argv[3], NULL, 16);
+ if (countmax == 0)
+ countmax = 1000;
+
+ do_getplb(NULL, 0, 0, NULL);
+
+#if 0
+ out32r(PMM0LA, 0);
+ out32r(PMM0PCILA, 0);
+ out32r(PMM0PCIHA, 0);
+ out32r(PMM0MA, 0);
+ out32r(PMM1LA, PCI_ADDR);
+ out32r(PMM1PCILA, addr & 0xff000000);
+ out32r(PMM1PCIHA, 0x00000000);
+ out32r(PMM1MA, 0xff000001);
+#endif
+
+ printf("PMM1LA =%08lx\n", in32r(PMM1LA));
+ printf("PMM1MA =%08lx\n", in32r(PMM1MA));
+ printf("PMM1PCILA =%08lx\n", in32r(PMM1PCILA));
+ printf("PMM1PCIHA =%08lx\n", in32r(PMM1PCIHA));
+
+ addr = PCI_ADDR | (addr & 0x00ffffff);
+ printf("\nWriting at addr %08x, size %08x (countmax=%x)\n", addr, size, countmax);
+
+ max = size >> 2;
+
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ val = *(ulong *)0x00000000;
+ if (val & 0x00000008) {
+ test_pci_pre_read = 1;
+ printf("Running test with pre pci-memory-read access!\n");
+ }
+ if (val & 0x00000004) {
+ test_sync = 1;
+ printf("Running test with sync instruction!\n");
+ }
+ if (val & 0x00000001) {
+ test_pci_read = 1;
+ printf("Running test with pci-memory-read access!\n");
+ }
+ if (val & 0x00000002) {
+ test_pci_cfg_write = 1;
+ printf("Running test with pci-config-write access!\n");
+ }
+
+ while (1) {
+
+ if (test_pci_pre_read) {
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+ }
+
+ /*
+ * Write some values to host via pci busmastering
+ */
+ ptr = (volatile unsigned long *)addr;
+ for (i=0; i<max; i++) {
+ *ptr++ = i;
+ }
+
+ if (test_sync) {
+ /*
+ * Sync previous writes
+ */
+ ppcSync();
+ }
+
+ if (test_pci_read) {
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+ }
+
+ if (test_pci_cfg_write) {
+ /*
+ * Generate IRQ to host via config regs
+ */
+ pci_write_config_byte(PCIDEVID_405GP, 0x44, 0x00);
+ }
+
+ if (loopcount++ > countmax) {
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ putc('.');
+
+ loopcount = 0;
+ }
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ writepci, 4, 1, do_writepci,
+ "writepci - Write some data to pcibus\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+#define PCI_CFGADDR 0xeec00000
+#define PCI_CFGDATA 0xeec00004
+
+int ibmPciConfigWrite
+(
+ int offset, /* offset into the configuration space */
+ int width, /* data width */
+ unsigned int data /* data to be written */
+ )
+{
+ /*
+ * Write config register address to the PCI config address register
+ * bit 31 must be 1 and bits 1:0 must be 0 (note LE bit notation)
+ */
+ out32r(PCI_CFGADDR, 0x80000000 | (offset & 0xFFFFFFFC));
+
+#if 0 /* test-only */
+ ppcSync();
+#endif
+
+ /*
+ * Write value to be written to the PCI config data register
+ */
+ switch ( width ) {
+ case 1: out32r(PCI_CFGDATA | (offset & 0x3), (unsigned char)(data & 0xFF));
+ break;
+ case 2: out32r(PCI_CFGDATA | (offset & 0x3), (unsigned short)(data & 0xFFFF));
+ break;
+ case 4: out32r(PCI_CFGDATA | (offset & 0x3), data);
+ break;
+ }
+
+ return (0);
+}
+
+int do_writepci2(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int size;
+ unsigned int countmax;
+ int max;
+ volatile unsigned long *ptr;
+ volatile unsigned long val;
+ int loopcount = 0;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ size = simple_strtol (argv[2], NULL, 16);
+ countmax = simple_strtol (argv[3], NULL, 16);
+ if (countmax == 0)
+ countmax = 1000;
+
+ do_getplb(NULL, 0, 0, NULL);
+
+#if 0
+ out32r(PMM0LA, 0);
+ out32r(PMM0PCILA, 0);
+ out32r(PMM0PCIHA, 0);
+ out32r(PMM0MA, 0);
+ out32r(PMM1LA, PCI_ADDR);
+ out32r(PMM1PCILA, addr & 0xff000000);
+ out32r(PMM1PCIHA, 0x00000000);
+ out32r(PMM1MA, 0xff000001);
+#endif
+
+ printf("PMM1LA =%08lx\n", in32r(PMM1LA));
+ printf("PMM1MA =%08lx\n", in32r(PMM1MA));
+ printf("PMM1PCILA =%08lx\n", in32r(PMM1PCILA));
+ printf("PMM1PCIHA =%08lx\n", in32r(PMM1PCIHA));
+
+ addr = PCI_ADDR | (addr & 0x00ffffff);
+ printf("\nWriting at addr %08x, size %08x (countmax=%x)\n", addr, size, countmax);
+
+ max = size >> 2;
+
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ while (1) {
+
+ /*
+ * Write one values to host via pci busmastering
+ */
+ ptr = (volatile unsigned long *)addr;
+ *ptr = 0x01234567;
+
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+
+ /*
+ * One pci config write
+ */
+/* pci_write_config_byte(PCIDEVID_405GP, 0x44, 0x00); */
+/* ibmPciConfigWrite(0x44, 1, 0x00); */
+ ibmPciConfigWrite(0x2e, 2, 0x1234); /* subsystem id */
+
+ if (loopcount++ > countmax) {
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ putc('.');
+
+ loopcount = 0;
+ }
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ writepci2, 4, 1, do_writepci2,
+ "writepci2- Write some data to pcibus\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_writepci22(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int size;
+ unsigned int countmax = 0;
+ volatile unsigned long *ptr;
+ volatile unsigned long val;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ size = simple_strtol (argv[2], NULL, 16);
+
+ addr = PCI_ADDR | (addr & 0x00ffffff);
+ printf("\nWriting at addr %08x, size %08x (countmax=%x)\n", addr, size, countmax);
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ while (1) {
+
+ /*
+ * Write one values to host via pci busmastering
+ */
+ ptr = (volatile unsigned long *)addr;
+ *ptr = 0x01234567;
+
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+
+ /*
+ * One pci config write
+ */
+ ibmPciConfigWrite(0x2e, 2, 0x1234); /* subsystem id */
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ writepci22, 4, 1, do_writepci22,
+ "writepci22- Write some data to pcibus\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int ibmPciConfigWrite3
+(
+ int offset, /* offset into the configuration space */
+ int width, /* data width */
+ unsigned int data /* data to be written */
+ )
+{
+ /*
+ * Write config register address to the PCI config address register
+ * bit 31 must be 1 and bits 1:0 must be 0 (note LE bit notation)
+ */
+ out32r(PCI_CFGADDR, 0x80000000 | (offset & 0xFFFFFFFC));
+
+#if 1 /* test-only */
+ ppcSync();
+#endif
+
+ /*
+ * Write value to be written to the PCI config data register
+ */
+ switch ( width ) {
+ case 1: out32r(PCI_CFGDATA | (offset & 0x3), (unsigned char)(data & 0xFF));
+ break;
+ case 2: out32r(PCI_CFGDATA | (offset & 0x3), (unsigned short)(data & 0xFFFF));
+ break;
+ case 4: out32r(PCI_CFGDATA | (offset & 0x3), data);
+ break;
+ }
+
+ return (0);
+}
+
+int do_writepci3(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int size;
+ unsigned int countmax;
+ int max;
+ volatile unsigned long *ptr;
+ volatile unsigned long val;
+ int loopcount = 0;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ size = simple_strtol (argv[2], NULL, 16);
+ countmax = simple_strtol (argv[3], NULL, 16);
+ if (countmax == 0)
+ countmax = 1000;
+
+ do_getplb(NULL, 0, 0, NULL);
+
+#if 0
+ out32r(PMM0LA, 0);
+ out32r(PMM0PCILA, 0);
+ out32r(PMM0PCIHA, 0);
+ out32r(PMM0MA, 0);
+ out32r(PMM1LA, PCI_ADDR);
+ out32r(PMM1PCILA, addr & 0xff000000);
+ out32r(PMM1PCIHA, 0x00000000);
+ out32r(PMM1MA, 0xff000001);
+#endif
+
+ printf("PMM1LA =%08lx\n", in32r(PMM1LA));
+ printf("PMM1MA =%08lx\n", in32r(PMM1MA));
+ printf("PMM1PCILA =%08lx\n", in32r(PMM1PCILA));
+ printf("PMM1PCIHA =%08lx\n", in32r(PMM1PCIHA));
+
+ addr = PCI_ADDR | (addr & 0x00ffffff);
+ printf("\nWriting at addr %08x, size %08x (countmax=%x)\n", addr, size, countmax);
+
+ max = size >> 2;
+
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ while (1) {
+
+ /*
+ * Write one values to host via pci busmastering
+ */
+ ptr = (volatile unsigned long *)addr;
+ *ptr = 0x01234567;
+
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+
+ /*
+ * One pci config write
+ */
+/* pci_write_config_byte(PCIDEVID_405GP, 0x44, 0x00); */
+/* ibmPciConfigWrite(0x44, 1, 0x00); */
+ ibmPciConfigWrite3(0x2e, 2, 0x1234); /* subsystem id */
+
+ if (loopcount++ > countmax) {
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ putc('.');
+
+ loopcount = 0;
+ }
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ writepci3, 4, 1, do_writepci3,
+ "writepci3- Write some data to pcibus\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+
+#define SECTOR_SIZE 32 /* 32 byte cache line */
+#define SECTOR_MASK 0x1F
+
+void my_flush_dcache(ulong lcl_addr, ulong count)
+{
+ unsigned int lcl_target;
+
+ /* promote to nearest cache sector */
+ lcl_target = (lcl_addr + count + SECTOR_SIZE - 1) & ~SECTOR_MASK;
+ lcl_addr &= ~SECTOR_MASK;
+ while (lcl_addr != lcl_target)
+ {
+ /* ppcDcbf((void *)lcl_addr);*/
+ __asm__("dcbf 0,%0": :"r" (lcl_addr));
+ lcl_addr += SECTOR_SIZE;
+ }
+ __asm__("sync"); /* Always flush prefetch queue in any case */
+}
+
+int do_writepci_cache(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+ unsigned int size;
+ unsigned int countmax;
+ int i;
+ volatile unsigned long *ptr;
+ volatile unsigned long val;
+ int loopcount = 0;
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ size = simple_strtol (argv[2], NULL, 16);
+ countmax = simple_strtol (argv[3], NULL, 16);
+ if (countmax == 0)
+ countmax = 1000;
+
+ do_getplb(NULL, 0, 0, NULL);
+
+#if 0
+ out32r(PMM0LA, 0);
+ out32r(PMM0PCILA, 0);
+ out32r(PMM0PCIHA, 0);
+ out32r(PMM0MA, 0);
+ out32r(PMM1LA, PCI_ADDR);
+ out32r(PMM1PCILA, addr & 0xff000000);
+ out32r(PMM1PCIHA, 0x00000000);
+ out32r(PMM1MA, 0xff000001);
+#endif
+
+ printf("PMM1LA =%08lx\n", in32r(PMM1LA));
+ printf("PMM1MA =%08lx\n", in32r(PMM1MA));
+ printf("PMM1PCILA =%08lx\n", in32r(PMM1PCILA));
+ printf("PMM1PCIHA =%08lx\n", in32r(PMM1PCIHA));
+
+ addr = PCI_ADDR | (addr & 0x00ffffff);
+ printf("\nWriting at addr %08x, size %08x (countmax=%x)\n", addr, size, countmax);
+
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ i = 0;
+
+ /*
+ * Set pci region as cachable
+ */
+ ppcSync();
+ __asm__ volatile (" addis 4,0,0x0000 ");
+ __asm__ volatile (" addi 4,4,0x0080 ");
+ __asm__ volatile (" mtdccr 4 ");
+ ppcSync();
+
+ while (1) {
+
+ /*
+ * Write one values to host via pci busmastering
+ */
+ ptr = (volatile unsigned long *)addr;
+ printf("A\n"); /* test-only */
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ *ptr++ = i++;
+ printf("B\n"); /* test-only */
+ my_flush_dcache(addr, 32);
+ printf("C\n"); /* test-only */
+
+ /*
+ * Read one value back
+ */
+ ptr = (volatile unsigned long *)addr;
+ val = *ptr;
+ printf("D\n"); /* test-only */
+
+ /*
+ * One pci config write
+ */
+/* pci_write_config_byte(PCIDEVID_405GP, 0x44, 0x00); */
+/* ibmPciConfigWrite(0x44, 1, 0x00); */
+ ibmPciConfigWrite3(0x2e, 2, 0x1234); /* subsystem id */
+ printf("E\n"); /* test-only */
+
+ if (loopcount++ > countmax) {
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ putc('.');
+
+ loopcount = 0;
+ }
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ writepci_cache, 4, 1, do_writepci_cache,
+ "writepci_cache - Write some data to pcibus\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_savepci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int *ptr;
+ int i;
+
+ /*
+ * Save own pci configuration in PRAM
+ */
+ memset((char *)PCI_REGS_ADDR, 0, PCI_REGS_LEN);
+ ptr = (unsigned int *)PCI_REGS_ADDR + 1;
+ for (i=0; i<0x40; i+=4) {
+ pci_read_config_dword(PCIDEVID_405GP, i, ptr++);
+ }
+ ptr = (unsigned int *)PCI_REGS_ADDR;
+ *ptr = crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4);
+
+ printf("\nStoring PCI Configuration Regs...\n");
+
+ return 0;
+}
+U_BOOT_CMD(
+ savepci, 4, 1, do_savepci,
+ "savepci - Save all pci regs\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_restorepci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ unsigned int *ptr;
+ int i;
+
+ /*
+ * Rewrite pci config regs (only after soft-reset with magic set)
+ */
+ ptr = (unsigned int *)PCI_REGS_ADDR;
+ if (crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4) == *ptr) {
+ puts("Restoring PCI Configurations Regs!\n");
+ ptr = (unsigned int *)PCI_REGS_ADDR + 1;
+ for (i=0; i<0x40; i+=4) {
+ pci_write_config_dword(PCIDEVID_405GP, i, *ptr++);
+ }
+ }
+ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+
+ return 0;
+}
+U_BOOT_CMD(
+ restorepci, 4, 1, do_restorepci,
+ "restorepci - Restore all pci regs\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+
+extern void write_without_sync(void);
+extern void write_with_sync(void);
+extern void write_with_less_sync(void);
+extern void write_with_more_sync(void);
+
+/*
+ * code from IBM-PPCSUPP
+ */
+int do_writeibm1(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ write_without_sync();
+
+ return 0;
+}
+U_BOOT_CMD(
+ writeibm1, 4, 1, do_writeibm1,
+ "writeibm1- Write some data to pcibus (without sync)\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_writeibm2(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ write_with_sync();
+
+ return 0;
+}
+U_BOOT_CMD(
+ writeibm2, 4, 1, do_writeibm2,
+ "writeibm2- Write some data to pcibus (with sync)\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_writeibm22(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ write_with_less_sync();
+
+ return 0;
+}
+U_BOOT_CMD(
+ writeibm22, 4, 1, do_writeibm22,
+ "writeibm22- Write some data to pcibus (with less sync)\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+
+int do_writeibm3(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ pci_write_config_word(PCIDEVID_405GP, 0x04, 0x0106); /* write command reg */
+
+ write_with_more_sync();
+
+ return 0;
+}
+U_BOOT_CMD(
+ writeibm3, 4, 1, do_writeibm3,
+ "writeibm3- Write some data to pcibus (with more sync)\n",
+ "<addr> <size>\n"
+ " - Write some data to pcibus.\n"
+);
+#endif
projects / u-boot / commitdiff