--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/ppc4xx-i2c.h>
+#include <command.h>
+#include <rtc.h>
+#include <post.h>
+#include <net.h>
+#include <malloc.h>
+
+#define L1_MEMSIZE (32*1024*1024)
+
+/* the std. DHCP stufff */
+#define DHCP_ROUTER 3
+#define DHCP_NETMASK 1
+#define DHCP_BOOTFILE 67
+#define DHCP_ROOTPATH 17
+#define DHCP_HOSTNAME 12
+
+/* some extras used by CRAY
+ *
+ * on the server this looks like:
+ *
+ * option L1-initrd-image code 224 = string;
+ * option L1-initrd-image "/opt/craysv2/craymcu/l1/flash/initrd.image"
+ */
+#define DHCP_L1_INITRD 224
+
+/* new, [better?] way via official vendor-extensions, defining an option
+ * space.
+ * on the server this looks like:
+ *
+ * option space CRAYL1;
+ * option CRAYL1.initrd code 3 = string;
+ * ..etc...
+ */
+#define DHCP_VENDOR_SPECX 43
+#define DHCP_VX_INITRD 3
+#define DHCP_VX_BOOTCMD 4
+#define DHCP_VX_BOOTARGS 5
+#define DHCP_VX_ROOTDEV 6
+#define DHCP_VX_FROMFLASH 7
+#define DHCP_VX_BOOTSCRIPT 8
+#define DHCP_VX_RCFILE 9
+#define DHCP_VX_MAGIC 10
+
+/* Things DHCP server can tellme about. If there's no flash address, then
+ * they dont participate in 'update' to flash, and we force their values
+ * back to '0' every boot to be sure to get them fresh from DHCP. Yes, I
+ * know this is a pain...
+ *
+ * If I get no bootfile, boot from flash. If rootpath, use that. If no
+ * rootpath use initrd in flash.
+ */
+typedef struct dhcp_item_s {
+ u8 dhcp_option;
+ u8 dhcp_vendor_option;
+ char *dhcpvalue;
+ char *envname;
+} dhcp_item_t;
+static dhcp_item_t Things[] = {
+ {DHCP_ROUTER, 0, NULL, "gateway"},
+ {DHCP_NETMASK, 0, NULL, "netmask"},
+ {DHCP_BOOTFILE, 0, NULL, "bootfile"},
+ {DHCP_ROOTPATH, 0, NULL, "rootpath"},
+ {DHCP_HOSTNAME, 0, NULL, "hostname"},
+ {DHCP_L1_INITRD, 0, NULL, "initrd"},
+/* and the other way.. */
+ {DHCP_VENDOR_SPECX, DHCP_VX_INITRD, NULL, "initrd"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_BOOTCMD, NULL, "bootcmd"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_FROMFLASH, NULL, "fromflash"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_BOOTSCRIPT, NULL, "bootscript"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_RCFILE, NULL, "rcfile"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_BOOTARGS, NULL, "xbootargs"},
+ {DHCP_VENDOR_SPECX, DHCP_VX_ROOTDEV, NULL, NULL},
+ {DHCP_VENDOR_SPECX, DHCP_VX_MAGIC, NULL, NULL}
+};
+
+#define N_THINGS ((sizeof(Things))/(sizeof(dhcp_item_t)))
+
+extern char bootscript[];
+
+/* Here is the boot logic as HUSH script. Overridden by any TFP provided
+ * bootscript file.
+ */
+
+static void init_sdram (void);
+
+/* ------------------------------------------------------------------------- */
+int board_early_init_f (void)
+{
+ /* Running from ROM: global data is still READONLY */
+ init_sdram ();
+ mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
+ mtdcr (UIC0ER, 0x00000000); /* disable all ints */
+ mtdcr (UIC0CR, 0x00000020); /* set all but FPGA SMI to be non-critical */
+ mtdcr (UIC0PR, 0xFFFFFFE0); /* set int polarities */
+ mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
+ mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
+ mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+int checkboard (void)
+{
+ return (0);
+}
+/* ------------------------------------------------------------------------- */
+
+/* ------------------------------------------------------------------------- */
+int misc_init_r (void)
+{
+ char *s, *e;
+ image_header_t *hdr;
+ time_t timestamp;
+ struct rtc_time tm;
+ char bootcmd[32];
+
+ hdr = (image_header_t *) (CONFIG_SYS_MONITOR_BASE - image_get_header_size ());
+#if defined(CONFIG_FIT)
+ if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) {
+ puts ("Non legacy image format not supported\n");
+ return -1;
+ }
+#endif
+
+ timestamp = (time_t)image_get_time (hdr);
+ to_tm (timestamp, &tm);
+ printf ("Welcome to U-Boot on Cray L1. Compiled %4d-%02d-%02d %2d:%02d:%02d (UTC)\n", tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+#define FACTORY_SETTINGS 0xFFFC0000
+ if ((s = getenv ("ethaddr")) == NULL) {
+ e = (char *) (FACTORY_SETTINGS);
+ if (*(e + 0) != '0'
+ || *(e + 1) != '0'
+ || *(e + 2) != ':'
+ || *(e + 3) != '4' || *(e + 4) != '0' || *(e + 17) != '\0') {
+ printf ("No valid MAC address in flash location 0x3C0000!\n");
+ } else {
+ printf ("Factory MAC: %s\n", e);
+ setenv ("ethaddr", e);
+ }
+ }
+ sprintf (bootcmd,"source %X",(unsigned)bootscript);
+ setenv ("bootcmd", bootcmd);
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+/* stubs so we can print dates w/o any nvram RTC.*/
+int rtc_get (struct rtc_time *tmp)
+{
+ return 0;
+}
+int rtc_set (struct rtc_time *tmp)
+{
+ return 0;
+}
+void rtc_reset (void)
+{
+ return;
+}
+
+/* ------------------------------------------------------------------------- */
+/* Do sdram bank init in C so I can read it..no console to print to yet!
+ */
+static void init_sdram (void)
+{
+ unsigned long tmp;
+
+ /* write SDRAM bank 0 register */
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
+ mtdcr (SDRAM0_CFGDATA, 0x00062001);
+
+/* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR. */
+/* To set the appropriate timings, we need to know the SDRAM speed. */
+/* We can use the PLB speed since the SDRAM speed is the same as */
+/* the PLB speed. The PLB speed is the FBK divider times the */
+/* 405GP reference clock, which on the L1 is 25MHz. */
+/* Thus, if FBK div is 2, SDRAM is 50MHz; if FBK div is 3, SDRAM is */
+/* 150MHz; if FBK is 3, SDRAM is 150MHz. */
+
+ /* divisor = ((mfdcr(strap)>> 28) & 0x3); */
+
+/* write SDRAM timing for 100MHz. */
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
+ mtdcr (SDRAM0_CFGDATA, 0x0086400D);
+
+/* write SDRAM refresh interval register */
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
+ mtdcr (SDRAM0_CFGDATA, 0x05F00000);
+ udelay (200);
+
+/* sdram controller.*/
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
+ mtdcr (SDRAM0_CFGDATA, 0x90800000);
+ udelay (200);
+
+/* initially, disable ECC on all banks */
+ udelay (200);
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
+ tmp = mfdcr (SDRAM0_CFGDATA);
+ tmp &= 0xff0fffff;
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
+ mtdcr (SDRAM0_CFGDATA, tmp);
+
+ return;
+}
+
+extern int memory_post_test (int flags);
+
+int testdram (void)
+{
+ unsigned long tmp;
+ uint *pstart = (uint *) 0x00000000;
+ uint *pend = (uint *) L1_MEMSIZE;
+ uint *p;
+
+ if (getenv_f("booted",NULL,0) <= 0)
+ {
+ printf ("testdram..");
+ /*AA*/
+ for (p = pstart; p < pend; p++)
+ *p = 0xaaaaaaaa;
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0xaaaaaaaa) {
+ printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
+ (uint) p, *p, 0xaaaaaaaa);
+ return 1;
+ }
+ }
+ /*55*/
+ for (p = pstart; p < pend; p++)
+ *p = 0x55555555;
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0x55555555) {
+ printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
+ (uint) p, *p, 0x55555555);
+ return 1;
+ }
+ }
+ /*addr*/
+ for (p = pstart; p < pend; p++)
+ *p = (unsigned)p;
+ for (p = pstart; p < pend; p++) {
+ if (*p != (unsigned)p) {
+ printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
+ (uint) p, *p, (uint)p);
+ return 1;
+ }
+ }
+ printf ("Success. ");
+ }
+ printf ("Enable ECC..");
+
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
+ tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x90800000;
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
+ mtdcr (SDRAM0_CFGDATA, tmp);
+ udelay (600);
+ for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L)
+ ;
+ udelay (400);
+ mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
+ tmp = mfdcr (SDRAM0_CFGDATA);
+ tmp |= 0x00800000;
+ mtdcr (SDRAM0_CFGDATA, tmp);
+ udelay (400);
+ printf ("enabled.\n");
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+static u8 *dhcp_env_update (u8 thing, u8 * pop)
+{
+ u8 i, oplen;
+
+ oplen = *(pop + 1);
+
+ if ((Things[thing].dhcpvalue = malloc (oplen)) == NULL) {
+ printf ("Whoops! failed to malloc space for DHCP thing %s\n",
+ Things[thing].envname);
+ return NULL;
+ }
+ for (i = 0; (i < oplen); i++)
+ if ((*(Things[thing].dhcpvalue + i) = *(pop + 2 + i)) == ' ')
+ break;
+ *(Things[thing].dhcpvalue + i) = '\0';
+
+/* set env. */
+ if (Things[thing].envname)
+ {
+ setenv (Things[thing].envname, Things[thing].dhcpvalue);
+ }
+ return ((u8 *)(Things[thing].dhcpvalue));
+}
+
+/* ------------------------------------------------------------------------- */
+u8 *dhcp_vendorex_prep (u8 * e)
+{
+ u8 thing;
+
+/* ask for the things I want. */
+ *e++ = 55; /* Parameter Request List */
+ *e++ = N_THINGS;
+ for (thing = 0; thing < N_THINGS; thing++)
+ *e++ = Things[thing].dhcp_option;
+ *e++ = 255;
+
+ return e;
+}
+
+/* ------------------------------------------------------------------------- */
+/* .. return NULL means it wasnt mine, non-null means I got it..*/
+u8 *dhcp_vendorex_proc (u8 * pop)
+{
+ u8 oplen, *sub_op, sub_oplen, *retval;
+ u8 thing = 0;
+
+ retval = NULL;
+ oplen = *(pop + 1);
+/* if pop is vender spec indicator, there are sub-options. */
+ if (*pop == DHCP_VENDOR_SPECX) {
+ for (sub_op = pop + 2;
+ oplen && (sub_oplen = *(sub_op + 1));
+ oplen -= sub_oplen, sub_op += (sub_oplen + 2)) {
+ for (thing = 0; thing < N_THINGS; thing++) {
+ if (*sub_op == Things[thing].dhcp_vendor_option) {
+ if (!(retval = dhcp_env_update (thing, sub_op))) {
+ return NULL;
+ }
+ }
+ }
+ }
+ } else {
+ for (thing = 0; thing < N_THINGS; thing++) {
+ if (*pop == Things[thing].dhcp_option)
+ if (!(retval = dhcp_env_update (thing, pop)))
+ return NULL;
+ }
+ }
+ return (pop);
+}
Code Review / kvmfornfv.git / blobdiff