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Diffstat (limited to 'arch/ppc/boot/simple/embed_config.c')
-rw-r--r--arch/ppc/boot/simple/embed_config.c938
1 files changed, 0 insertions, 938 deletions
diff --git a/arch/ppc/boot/simple/embed_config.c b/arch/ppc/boot/simple/embed_config.c
deleted file mode 100644
index 3b46792d7b8..00000000000
--- a/arch/ppc/boot/simple/embed_config.c
+++ /dev/null
@@ -1,938 +0,0 @@
-/* Board specific functions for those embedded 8xx boards that do
- * not have boot monitor support for board information.
- *
- * 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.
- */
-
-#include <linux/types.h>
-#include <linux/string.h>
-#include <asm/reg.h>
-#ifdef CONFIG_8xx
-#include <asm/mpc8xx.h>
-#endif
-#ifdef CONFIG_8260
-#include <asm/mpc8260.h>
-#include <asm/immap_cpm2.h>
-#endif
-#ifdef CONFIG_40x
-#include <asm/io.h>
-#endif
-#ifdef CONFIG_XILINX_VIRTEX
-#include <platforms/4xx/xparameters/xparameters.h>
-#endif
-extern unsigned long timebase_period_ns;
-
-/* For those boards that don't provide one.
-*/
-#if !defined(CONFIG_MBX)
-static bd_t bdinfo;
-#endif
-
-/* IIC functions.
- * These are just the basic master read/write operations so we can
- * examine serial EEPROM.
- */
-extern void iic_read(uint devaddr, u_char *buf, uint offset, uint count);
-
-/* Supply a default Ethernet address for those eval boards that don't
- * ship with one. This is an address from the MBX board I have, so
- * it is unlikely you will find it on your network.
- */
-static ushort def_enet_addr[] = { 0x0800, 0x3e26, 0x1559 };
-
-#if defined(CONFIG_MBX)
-
-/* The MBX hands us a pretty much ready to go board descriptor. This
- * is where the idea started in the first place.
- */
-void
-embed_config(bd_t **bdp)
-{
- u_char *mp;
- u_char eebuf[128];
- int i = 8;
- bd_t *bd;
-
- bd = *bdp;
-
- /* Read the first 128 bytes of the EEPROM. There is more,
- * but this is all we need.
- */
- iic_read(0xa4, eebuf, 0, 128);
-
- /* All we are looking for is the Ethernet MAC address. The
- * first 8 bytes are 'MOTOROLA', so check for part of that.
- * Next, the VPD describes a MAC 'packet' as being of type 08
- * and size 06. So we look for that and the MAC must follow.
- * If there are more than one, we still only care about the first.
- * If it's there, assume we have a valid MAC address. If not,
- * grab our default one.
- */
- if ((*(uint *)eebuf) == 0x4d4f544f) {
- while (i < 127 && !(eebuf[i] == 0x08 && eebuf[i + 1] == 0x06))
- i += eebuf[i + 1] + 2; /* skip this packet */
-
- if (i == 127) /* Couldn't find. */
- mp = (u_char *)def_enet_addr;
- else
- mp = &eebuf[i + 2];
- }
- else
- mp = (u_char *)def_enet_addr;
-
- for (i=0; i<6; i++)
- bd->bi_enetaddr[i] = *mp++;
-
- /* The boot rom passes these to us in MHz. Linux now expects
- * them to be in Hz.
- */
- bd->bi_intfreq *= 1000000;
- bd->bi_busfreq *= 1000000;
-
- /* Stuff a baud rate here as well.
- */
- bd->bi_baudrate = 9600;
-}
-#endif /* CONFIG_MBX */
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC) || \
- defined(CONFIG_RPX8260) || defined(CONFIG_EP405)
-/* Helper functions for Embedded Planet boards.
-*/
-/* Because I didn't find anything that would do this.......
-*/
-u_char
-aschex_to_byte(u_char *cp)
-{
- u_char byte, c;
-
- c = *cp++;
-
- if ((c >= 'A') && (c <= 'F')) {
- c -= 'A';
- c += 10;
- } else if ((c >= 'a') && (c <= 'f')) {
- c -= 'a';
- c += 10;
- } else
- c -= '0';
-
- byte = c * 16;
-
- c = *cp;
-
- if ((c >= 'A') && (c <= 'F')) {
- c -= 'A';
- c += 10;
- } else if ((c >= 'a') && (c <= 'f')) {
- c -= 'a';
- c += 10;
- } else
- c -= '0';
-
- byte += c;
-
- return(byte);
-}
-
-static void
-rpx_eth(bd_t *bd, u_char *cp)
-{
- int i;
-
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = aschex_to_byte(cp);
- cp += 2;
- }
-}
-
-#ifdef CONFIG_RPX8260
-static uint
-rpx_baseten(u_char *cp)
-{
- uint retval;
-
- retval = 0;
-
- while (*cp != '\n') {
- retval *= 10;
- retval += (*cp) - '0';
- cp++;
- }
- return(retval);
-}
-#endif
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
-static void
-rpx_brate(bd_t *bd, u_char *cp)
-{
- uint rate;
-
- rate = 0;
-
- while (*cp != '\n') {
- rate *= 10;
- rate += (*cp) - '0';
- cp++;
- }
-
- bd->bi_baudrate = rate * 100;
-}
-
-static void
-rpx_cpuspeed(bd_t *bd, u_char *cp)
-{
- uint num, den;
-
- num = den = 0;
-
- while (*cp != '\n') {
- num *= 10;
- num += (*cp) - '0';
- cp++;
- if (*cp == '/') {
- cp++;
- den = (*cp) - '0';
- break;
- }
- }
-
- /* I don't know why the RPX just can't state the actual
- * CPU speed.....
- */
- if (den) {
- num /= den;
- num *= den;
- }
- bd->bi_intfreq = bd->bi_busfreq = num * 1000000;
-
- /* The 8xx can only run a maximum 50 MHz bus speed (until
- * Motorola changes this :-). Greater than 50 MHz parts
- * run internal/2 for bus speed.
- */
- if (num > 50)
- bd->bi_busfreq /= 2;
-}
-#endif
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC) || defined(CONFIG_EP405)
-static void
-rpx_memsize(bd_t *bd, u_char *cp)
-{
- uint size;
-
- size = 0;
-
- while (*cp != '\n') {
- size *= 10;
- size += (*cp) - '0';
- cp++;
- }
-
- bd->bi_memsize = size * 1024 * 1024;
-}
-#endif /* LITE || CLASSIC || EP405 */
-#if defined(CONFIG_EP405)
-static void
-rpx_nvramsize(bd_t *bd, u_char *cp)
-{
- uint size;
-
- size = 0;
-
- while (*cp != '\n') {
- size *= 10;
- size += (*cp) - '0';
- cp++;
- }
-
- bd->bi_nvramsize = size * 1024;
-}
-#endif /* CONFIG_EP405 */
-
-#endif /* Embedded Planet boards */
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
-
-/* Read the EEPROM on the RPX-Lite board.
-*/
-void
-embed_config(bd_t **bdp)
-{
- u_char eebuf[256], *cp;
- bd_t *bd;
-
- /* Read the first 256 bytes of the EEPROM. I think this
- * is really all there is, and I hope if it gets bigger the
- * info we want is still up front.
- */
- bd = &bdinfo;
- *bdp = bd;
-
-#if 1
- iic_read(0xa8, eebuf, 0, 128);
- iic_read(0xa8, &eebuf[128], 128, 128);
-
- /* We look for two things, the Ethernet address and the
- * serial baud rate. The records are separated by
- * newlines.
- */
- cp = eebuf;
- for (;;) {
- if (*cp == 'E') {
- cp++;
- if (*cp == 'A') {
- cp += 2;
- rpx_eth(bd, cp);
- }
- }
- if (*cp == 'S') {
- cp++;
- if (*cp == 'B') {
- cp += 2;
- rpx_brate(bd, cp);
- }
- }
- if (*cp == 'D') {
- cp++;
- if (*cp == '1') {
- cp += 2;
- rpx_memsize(bd, cp);
- }
- }
- if (*cp == 'H') {
- cp++;
- if (*cp == 'Z') {
- cp += 2;
- rpx_cpuspeed(bd, cp);
- }
- }
-
- /* Scan to the end of the record.
- */
- while ((*cp != '\n') && (*cp != 0xff))
- cp++;
-
- /* If the next character is a 0 or ff, we are done.
- */
- cp++;
- if ((*cp == 0) || (*cp == 0xff))
- break;
- }
- bd->bi_memstart = 0;
-#else
- /* For boards without initialized EEPROM.
- */
- bd->bi_memstart = 0;
- bd->bi_memsize = (8 * 1024 * 1024);
- bd->bi_intfreq = 48000000;
- bd->bi_busfreq = 48000000;
- bd->bi_baudrate = 9600;
-#endif
-}
-#endif /* RPXLITE || RPXCLASSIC */
-
-#ifdef CONFIG_BSEIP
-/* Build a board information structure for the BSE ip-Engine.
- * There is more to come since we will add some environment
- * variables and a function to read them.
- */
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- bd = &bdinfo;
- *bdp = bd;
-
- /* Baud rate and processor speed will eventually come
- * from the environment variables.
- */
- bd->bi_baudrate = 9600;
-
- /* Get the Ethernet station address from the Flash ROM.
- */
- cp = (u_char *)0xfe003ffa;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-
- /* The rest of this should come from the environment as well.
- */
- bd->bi_memstart = 0;
- bd->bi_memsize = (16 * 1024 * 1024);
- bd->bi_intfreq = 48000000;
- bd->bi_busfreq = 48000000;
-}
-#endif /* BSEIP */
-
-#ifdef CONFIG_FADS
-/* Build a board information structure for the FADS.
- */
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- bd = &bdinfo;
- *bdp = bd;
-
- /* Just fill in some known values.
- */
- bd->bi_baudrate = 9600;
-
- /* Use default enet.
- */
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-
- bd->bi_memstart = 0;
- bd->bi_memsize = (8 * 1024 * 1024);
- bd->bi_intfreq = 40000000;
- bd->bi_busfreq = 40000000;
-}
-#endif /* FADS */
-
-#ifdef CONFIG_8260
-/* Compute 8260 clock values if the rom doesn't provide them.
- */
-static unsigned char bus2core_8260[] = {
-/* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
- 3, 2, 2, 2, 4, 4, 5, 9, 6, 11, 8, 10, 3, 12, 7, 2,
- 6, 5, 13, 2, 14, 4, 15, 2, 3, 11, 8, 10, 16, 12, 7, 2,
-};
-
-static void
-clk_8260(bd_t *bd)
-{
- uint scmr, vco_out, clkin;
- uint plldf, pllmf, corecnf;
- volatile cpm2_map_t *ip;
-
- ip = (cpm2_map_t *)CPM_MAP_ADDR;
- scmr = ip->im_clkrst.car_scmr;
-
- /* The clkin is always bus frequency.
- */
- clkin = bd->bi_busfreq;
-
- /* Collect the bits from the scmr.
- */
- plldf = (scmr >> 12) & 1;
- pllmf = scmr & 0xfff;
- corecnf = (scmr >> 24) &0x1f;
-
- /* This is arithmetic from the 8260 manual.
- */
- vco_out = clkin / (plldf + 1);
- vco_out *= 2 * (pllmf + 1);
- bd->bi_vco = vco_out; /* Save for later */
-
- bd->bi_cpmfreq = vco_out / 2; /* CPM Freq, in MHz */
- bd->bi_intfreq = bd->bi_busfreq * bus2core_8260[corecnf] / 2;
-
- /* Set Baud rate divisor. The power up default is divide by 16,
- * but we set it again here in case it was changed.
- */
- ip->im_clkrst.car_sccr = 1; /* DIV 16 BRG */
- bd->bi_brgfreq = vco_out / 16;
-}
-
-static unsigned char bus2core_8280[] = {
-/* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
- 3, 2, 2, 2, 4, 4, 5, 9, 6, 11, 8, 10, 3, 12, 7, 2,
- 6, 5, 13, 2, 14, 2, 15, 2, 3, 2, 2, 2, 16, 2, 2, 2,
-};
-
-static void
-clk_8280(bd_t *bd)
-{
- uint scmr, main_clk, clkin;
- uint pllmf, corecnf;
- volatile cpm2_map_t *ip;
-
- ip = (cpm2_map_t *)CPM_MAP_ADDR;
- scmr = ip->im_clkrst.car_scmr;
-
- /* The clkin is always bus frequency.
- */
- clkin = bd->bi_busfreq;
-
- /* Collect the bits from the scmr.
- */
- pllmf = scmr & 0xf;
- corecnf = (scmr >> 24) & 0x1f;
-
- /* This is arithmetic from the 8280 manual.
- */
- main_clk = clkin * (pllmf + 1);
-
- bd->bi_cpmfreq = main_clk / 2; /* CPM Freq, in MHz */
- bd->bi_intfreq = bd->bi_busfreq * bus2core_8280[corecnf] / 2;
-
- /* Set Baud rate divisor. The power up default is divide by 16,
- * but we set it again here in case it was changed.
- */
- ip->im_clkrst.car_sccr = (ip->im_clkrst.car_sccr & 0x3) | 0x1;
- bd->bi_brgfreq = main_clk / 16;
-}
-#endif
-
-#ifdef CONFIG_SBC82xx
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
- unsigned long pvr;
-
- bd = *bdp;
-
- bd = &bdinfo;
- *bdp = bd;
- bd->bi_baudrate = 9600;
- bd->bi_memsize = 256 * 1024 * 1024; /* just a guess */
-
- cp = (void*)SBC82xx_MACADDR_NVRAM_SCC1;
- memcpy(bd->bi_enetaddr, cp, 6);
-
- /* can busfreq be calculated? */
- pvr = mfspr(SPRN_PVR);
- if ((pvr & 0xffff0000) == 0x80820000) {
- bd->bi_busfreq = 100000000;
- clk_8280(bd);
- } else {
- bd->bi_busfreq = 66000000;
- clk_8260(bd);
- }
-
-}
-#endif /* SBC82xx */
-
-#if defined(CONFIG_EST8260) || defined(CONFIG_TQM8260)
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- bd = *bdp;
-#if 0
- /* This is actually provided by my boot rom. I have it
- * here for those people that may load the kernel with
- * a JTAG/COP tool and not the rom monitor.
- */
- bd->bi_baudrate = 115200;
- bd->bi_intfreq = 200000000;
- bd->bi_busfreq = 66666666;
- bd->bi_cpmfreq = 66666666;
- bd->bi_brgfreq = 33333333;
- bd->bi_memsize = 16 * 1024 * 1024;
-#else
- /* The boot rom passes these to us in MHz. Linux now expects
- * them to be in Hz.
- */
- bd->bi_intfreq *= 1000000;
- bd->bi_busfreq *= 1000000;
- bd->bi_cpmfreq *= 1000000;
- bd->bi_brgfreq *= 1000000;
-#endif
-
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-}
-#endif /* EST8260 */
-
-#ifdef CONFIG_SBS8260
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- /* This should provided by the boot rom.
- */
- bd = &bdinfo;
- *bdp = bd;
- bd->bi_baudrate = 9600;
- bd->bi_memsize = 64 * 1024 * 1024;
-
- /* Set all of the clocks. We have to know the speed of the
- * external clock. The development board had 66 MHz.
- */
- bd->bi_busfreq = 66666666;
- clk_8260(bd);
-
- /* I don't know how to compute this yet.
- */
- bd->bi_intfreq = 133000000;
-
-
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-}
-#endif /* SBS8260 */
-
-#ifdef CONFIG_RPX8260
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp, *keyvals;
- int i;
- bd_t *bd;
-
- keyvals = (u_char *)*bdp;
-
- bd = &bdinfo;
- *bdp = bd;
-
- /* This is almost identical to the RPX-Lite/Classic functions
- * on the 8xx boards. It would be nice to have a key lookup
- * function in a string, but the format of all of the fields
- * is slightly different.
- */
- cp = keyvals;
- for (;;) {
- if (*cp == 'E') {
- cp++;
- if (*cp == 'A') {
- cp += 2;
- rpx_eth(bd, cp);
- }
- }
- if (*cp == 'S') {
- cp++;
- if (*cp == 'B') {
- cp += 2;
- bd->bi_baudrate = rpx_baseten(cp);
- }
- }
- if (*cp == 'D') {
- cp++;
- if (*cp == '1') {
- cp += 2;
- bd->bi_memsize = rpx_baseten(cp) * 1024 * 1024;
- }
- }
- if (*cp == 'X') {
- cp++;
- if (*cp == 'T') {
- cp += 2;
- bd->bi_busfreq = rpx_baseten(cp);
- }
- }
- if (*cp == 'N') {
- cp++;
- if (*cp == 'V') {
- cp += 2;
- bd->bi_nvsize = rpx_baseten(cp) * 1024 * 1024;
- }
- }
-
- /* Scan to the end of the record.
- */
- while ((*cp != '\n') && (*cp != 0xff))
- cp++;
-
- /* If the next character is a 0 or ff, we are done.
- */
- cp++;
- if ((*cp == 0) || (*cp == 0xff))
- break;
- }
- bd->bi_memstart = 0;
-
- /* The memory size includes both the 60x and local bus DRAM.
- * I don't want to use the local bus DRAM for real memory,
- * so subtract it out. It would be nice if they were separate
- * keys.
- */
- bd->bi_memsize -= 32 * 1024 * 1024;
-
- /* Set all of the clocks. We have to know the speed of the
- * external clock.
- */
- clk_8260(bd);
-
- /* I don't know how to compute this yet.
- */
- bd->bi_intfreq = 200000000;
-}
-#endif /* RPX6 for testing */
-
-#ifdef CONFIG_ADS8260
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- /* This should provided by the boot rom.
- */
- bd = &bdinfo;
- *bdp = bd;
- bd->bi_baudrate = 9600;
- bd->bi_memsize = 16 * 1024 * 1024;
-
- /* Set all of the clocks. We have to know the speed of the
- * external clock. The development board had 66 MHz.
- */
- bd->bi_busfreq = 66666666;
- clk_8260(bd);
-
- /* I don't know how to compute this yet.
- */
- bd->bi_intfreq = 200000000;
-
-
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-}
-#endif /* ADS8260 */
-
-#ifdef CONFIG_WILLOW
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd;
-
- /* Willow has Open Firmware....I should learn how to get this
- * information from it.
- */
- bd = &bdinfo;
- *bdp = bd;
- bd->bi_baudrate = 9600;
- bd->bi_memsize = 32 * 1024 * 1024;
-
- /* Set all of the clocks. We have to know the speed of the
- * external clock. The development board had 66 MHz.
- */
- bd->bi_busfreq = 66666666;
- clk_8260(bd);
-
- /* I don't know how to compute this yet.
- */
- bd->bi_intfreq = 200000000;
-
-
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- bd->bi_enetaddr[i] = *cp++;
- }
-}
-#endif /* WILLOW */
-
-#if defined(CONFIG_XILINX_ML300) || defined(CONFIG_XILINX_ML403)
-void
-embed_config(bd_t ** bdp)
-{
- static const unsigned long line_size = 32;
- static const unsigned long congruence_classes = 256;
- unsigned long addr;
- unsigned long dccr;
- uint8_t* cp;
- bd_t *bd;
- int i;
-
- /*
- * Invalidate the data cache if the data cache is turned off.
- * - The 405 core does not invalidate the data cache on power-up
- * or reset but does turn off the data cache. We cannot assume
- * that the cache contents are valid.
- * - If the data cache is turned on this must have been done by
- * a bootloader and we assume that the cache contents are
- * valid.
- */
- __asm__("mfdccr %0": "=r" (dccr));
- if (dccr == 0) {
- for (addr = 0;
- addr < (congruence_classes * line_size);
- addr += line_size) {
- __asm__("dccci 0,%0": :"b"(addr));
- }
- }
-
- bd = &bdinfo;
- *bdp = bd;
- bd->bi_memsize = XPAR_DDR_0_SIZE;
- bd->bi_intfreq = XPAR_CORE_CLOCK_FREQ_HZ;
- bd->bi_busfreq = XPAR_PLB_CLOCK_FREQ_HZ;
- bd->bi_pci_busfreq = XPAR_PCI_0_CLOCK_FREQ_HZ;
-
- /* Copy the default ethernet address */
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++)
- bd->bi_enetaddr[i] = *cp++;
-
- timebase_period_ns = 1000000000 / bd->bi_tbfreq;
- /* see bi_tbfreq definition in arch/ppc/platforms/4xx/xilinx_ml300.h */
-}
-#endif /* CONFIG_XILINX_ML300 || CONFIG_XILINX_ML403 */
-
-#ifdef CONFIG_IBM_OPENBIOS
-/* This could possibly work for all treeboot roms.
-*/
-#if defined(CONFIG_BUBINGA)
-#define BOARD_INFO_VECTOR 0xFFF80B50 /* openbios 1.19 moved this vector down - armin */
-#else
-#define BOARD_INFO_VECTOR 0xFFFE0B50
-#endif
-
-void
-embed_config(bd_t **bdp)
-{
- u_char *cp;
- int i;
- bd_t *bd, *treeboot_bd;
- bd_t *(*get_board_info)(void) =
- (bd_t *(*)(void))(*(unsigned long *)BOARD_INFO_VECTOR);
-#if !defined(CONFIG_STB03xxx)
-
- /* shut down the Ethernet controller that the boot rom
- * sometimes leaves running.
- */
- mtdcr(DCRN_MALCR(DCRN_MAL_BASE), MALCR_MMSR); /* 1st reset MAL */
- while (mfdcr(DCRN_MALCR(DCRN_MAL_BASE)) & MALCR_MMSR) {}; /* wait for the reset */
- out_be32((volatile u32*)EMAC0_BASE,0x20000000); /* then reset EMAC */
-#endif
-
- bd = &bdinfo;
- *bdp = bd;
- if ((treeboot_bd = get_board_info()) != NULL) {
- memcpy(bd, treeboot_bd, sizeof(bd_t));
- }
- else {
- /* Hmmm...better try to stuff some defaults.
- */
- bd->bi_memsize = 16 * 1024 * 1024;
- cp = (u_char *)def_enet_addr;
- for (i=0; i<6; i++) {
- /* I should probably put different ones here,
- * hopefully only one is used.
- */
- bd->BD_EMAC_ADDR(0,i) = *cp;
-
-#ifdef CONFIG_PCI
- bd->bi_pci_enetaddr[i] = *cp++;
-#endif
- }
- bd->bi_tbfreq = 200 * 1000 * 1000;
- bd->bi_intfreq = 200000000;
- bd->bi_busfreq = 100000000;
-#ifdef CONFIG_PCI
- bd->bi_pci_busfreq = 66666666;
-#endif
- }
- /* Yeah, this look weird, but on Redwood 4 they are
- * different object in the structure. Sincr Redwwood 5
- * and Redwood 6 use OpenBIOS, it requires a special value.
- */
-#if defined(CONFIG_REDWOOD_5) || defined (CONFIG_REDWOOD_6)
- bd->bi_tbfreq = 27 * 1000 * 1000;
-#endif
- timebase_period_ns = 1000000000 / bd->bi_tbfreq;
-}
-#endif /* CONFIG_IBM_OPENBIOS */
-
-#ifdef CONFIG_EP405
-#include <linux/serial_reg.h>
-
-void
-embed_config(bd_t **bdp)
-{
- u32 chcr0;
- u_char *cp;
- bd_t *bd;
-
- /* Different versions of the PlanetCore firmware vary in how
- they set up the serial port - in particular whether they
- use the internal or external serial clock for UART0. Make
- sure the UART is in a known state. */
- /* FIXME: We should use the board's 11.0592MHz external serial
- clock - it will be more accurate for serial rates. For
- now, however the baud rates in ep405.h are for the internal
- clock. */
- chcr0 = mfdcr(DCRN_CHCR0);
- if ( (chcr0 & 0x1fff) != 0x103e ) {
- mtdcr(DCRN_CHCR0, (chcr0 & 0xffffe000) | 0x103e);
- /* The following tricks serial_init() into resetting the baud rate */
- writeb(0, UART0_IO_BASE + UART_LCR);
- }
-
- /* We haven't seen actual problems with the EP405 leaving the
- * EMAC running (as we have on Walnut). But the registers
- * suggest it may not be left completely quiescent. Reset it
- * just to be sure. */
- mtdcr(DCRN_MALCR(DCRN_MAL_BASE), MALCR_MMSR); /* 1st reset MAL */
- while (mfdcr(DCRN_MALCR(DCRN_MAL_BASE)) & MALCR_MMSR) {}; /* wait for the reset */
- out_be32((unsigned *)EMAC0_BASE,0x20000000); /* then reset EMAC */
-
- bd = &bdinfo;
- *bdp = bd;
-#if 1
- cp = (u_char *)0xF0000EE0;
- for (;;) {
- if (*cp == 'E') {
- cp++;
- if (*cp == 'A') {
- cp += 2;
- rpx_eth(bd, cp);
- }
- }
-
- if (*cp == 'D') {
- cp++;
- if (*cp == '1') {
- cp += 2;
- rpx_memsize(bd, cp);
- }
- }
-
- if (*cp == 'N') {
- cp++;
- if (*cp == 'V') {
- cp += 2;
- rpx_nvramsize(bd, cp);
- }
- }
- while ((*cp != '\n') && (*cp != 0xff))
- cp++;
-
- cp++;
- if ((*cp == 0) || (*cp == 0xff))
- break;
- }
- bd->bi_intfreq = 200000000;
- bd->bi_busfreq = 100000000;
- bd->bi_pci_busfreq= 33000000 ;
-#else
-
- bd->bi_memsize = 64000000;
- bd->bi_intfreq = 200000000;
- bd->bi_busfreq = 100000000;
- bd->bi_pci_busfreq= 33000000 ;
-#endif
-}
-#endif
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