New board SIMPC8313 support: nand_boot.c, sdram.c,
simpc8313.c
Remaining board specific files.
Signed-off-by: Ron Madrid
---
board/sheldon/simpc8313/nand_boot.c | 424
+++++++++++++++++++++++++++++++++++
board/sheldon/simpc8313/sdram.c | 204
+++++++++++++++++
board/sheldon/simpc8313/simpc8313.c | 113 ++++++++++
3 files changed, 741 insertions(+), 0 deletions(-)
create mode 100644
board/sheldon/simpc8313/nand_boot.c
create mode 100644 board/sheldon/simpc8313/sdram.c
create mode 100644
board/sheldon/simpc8313/simpc8313.c
diff --git a/board/sheldon/simpc8313/nand_boot.c
b/board/sheldon/simpc8313/nand_boot.c
new file mode 100644
index 0000000..39a5616
--- /dev/null
+++ b/board/sheldon/simpc8313/nand_boot.c
@@ -0,0 +1,424 @@
+/*
+ * Copyright 2008 Sheldon Instruments, Inc.
+ *
+ * Origin from MPC8313EMDS of
[EMAIL PROTECTED]
+ *
+ * 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 <mpc83xx.h>
+#include <ns16550.h>
+#include <nand.h>
+#include <asm/processor.h>
+
+/* NAND ECC checking method - 0 = no hardware ECC
check */
+#define NAND_HARD_ECC ((CFG_NAND_BR0_PRELIM >>
BR_DECC_SHIFT) & 3)
+
+/* NAND Page Size : 0 = small page (512 bytes ), 1 =
large page (2048 bytes) */
+#define NAND_PGS ((CFG_NAND_OR0_PRELIM >>
OR_FCM_PGS_SHIFT) & 1)
+
+/* Timeout in case FCM does not complete */
+#define NAND_TIMEOUT (1000000)
+
+/* Delay before restarting after a fatal u-boot error
*/
+#define RESTART_DELAY (0x4000000)
+
+/* Error codes returned from nand_read_next_block()
*/
+#define NAND_OK (1) /* read block okay
*/
+#define NAND_BAD_BLOCK (0) /* block marked bad -
skip block */
+#define NAND_ERR_TIMEOUT (-1) /* timeout error -
fatal error */
+#define NAND_ERR_ECC (-2) /* uncorrectable ecc -
fatal error */
+
+/* Macros to control selected serial port */
+#if CONFIG_CONS_INDEX == 1 &&
defined(CFG_NS16550_COM1)
+#define NS16550_COM ((NS16550_t)CFG_NS16550_COM1)
+#elif CONFIG_CONS_INDEX == 2 &&
defined(CFG_NS16550_COM2)
+#define NS16550_COM ((NS16550_t)CFG_NS16550_COM2)
+#else
+#warning "*****************************"
+#warning "** No console port defined **"
+#warning "*****************************"
+#define NS16550_COM ((NS16550_t)0)
+#define CFG_NAND_BOOT_QUIET
+#endif /* CONFIG_CONS_INDEX */
+
+/* Quiet Boot - only prints fatal error messages */
+#if defined(CFG_NAND_BOOT_QUIET)
+#define status_putc(c) { while (0); }
+#define status_puts(s) { while (0); }
+#else
+#define status_putc(c) { putc(c); }
+#define status_puts(s) { puts(s); }
+#endif /* CFG_NAND_BOOT_QUIET */
+
+#if !(NAND_HARD_ECC)
+const u_char ecc_pos[] = {
+#if (NAND_PGS)
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63
+#else
+ 0, 1, 2, 3, 6, 7
+#endif /* NAND_PGS */
+};
+#endif /* !(NAND_HARD_ECC) */
+
+/* u-boot version string from start.S */
+extern char version_string[];
+
+/* nand_ecc.c */
+extern int nand_correct_data (u_char * dat, const
u_char * ecc_pos, int blocks);
+
+/* hang */
+void hang (void)
+{
+ while(1);
+}
+
+#define LCRVAL LCR_8N1 /* 8 data, 1 stop, no
parity */
+#define MCRVAL (MCR_DTR | MCR_RTS) /* RTS/DTR */
+#define FCRVAL (FCR_FIFO_EN | FCR_RXSR | FCR_TXSR) /*
Clear & enable FIFOs */
+
+static
+void NS16550a_init (int baud_divisor)
+{
+ if (NS16550_COM) {
+ NS16550_COM->ier = 0x00;
+ NS16550_COM->lcr = LCR_BKSE | LCRVAL;
+ NS16550_COM->dll = baud_divisor & 0xff;
+ NS16550_COM->dlm = (baud_divisor >> 8) & 0xff;
+ NS16550_COM->lcr = LCRVAL;
+ NS16550_COM->mcr = MCRVAL;
+ NS16550_COM->fcr = FCRVAL;
+ }
+}
+
+/* print a single character, with an extra line feed
for return characters */
+void putc (const char c)
+{
+ if (NS16550_COM) {
+ if (c == '\n') {
+ while ((NS16550_COM->lsr & LSR_THRE) == 0);
+ NS16550_COM->thr = '\r';
+ }
+ while ((NS16550_COM->lsr & LSR_THRE) == 0);
+ NS16550_COM->thr = c;
+ }
+}
+
+/* print an entire null terminated string */
+void puts (const char *s)
+{
+ while (*s) {
+ putc (*s++);
+ }
+}
+
+/* read the next block from NAND flash and store it
at the supplied address
+ *
+ * return values:
+ * NAND_OK - block was successfully read
and copied to the destination
+ * NAND_BAD_BLOCK - block was marked bad so should
be skipped
+ * NAND_ERR_TIMEOUT - page read did not complete
(fatal error)
+ * NAND_ERR_ECC - uncorrectable ECC (fatal
error)
+ */
+static
+int nand_read_next_block (unsigned int *dst)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile lbus83xx_t *lbc = &im->lbus;
+ int buf_num;
+ int page;
+ unsigned char *srcc;
+ unsigned int *src;
+ int ecc_err;
+ int ctr;
+ unsigned int status;
+#if !(NAND_HARD_ECC)
+ int ecc_cnt;
+ char ecc_char;
+
+ ecc_cnt = 0;
+#endif /* !(NAND_HARD_ECC) */
+
+ ecc_err = 0;
+ srcc = 0;
+
+ /* Enable FCM detection of timeouts, ECC errors and
completion */
+ lbc->ltedr = 0;
+
+ lbc->fbcr = 0; /* read entire page to enable ECC */
+ lbc->fbar++; /* read next block, follows boot
loaded block */
+#if (NAND_PGS)
+ lbc->fir = (FIR_OP_CW0 << FIR_OP0_SHIFT) |
+ (FIR_OP_CA << FIR_OP1_SHIFT) |
+ (FIR_OP_PA << FIR_OP2_SHIFT) |
+ (FIR_OP_CW1 << FIR_OP3_SHIFT) |
+ (FIR_OP_RBW << FIR_OP4_SHIFT);
+#else
+ lbc->fir = (FIR_OP_CW0 << FIR_OP0_SHIFT) |
+ (FIR_OP_CA << FIR_OP1_SHIFT) |
+ (FIR_OP_PA << FIR_OP2_SHIFT) |
+ (FIR_OP_RBW << FIR_OP3_SHIFT);
+#endif /* NAND_PGS */
+ lbc->fcr = (NAND_CMD_READ0 << FCR_CMD0_SHIFT) |
+ (NAND_CMD_READSTART << FCR_CMD1_SHIFT);
+
+ /* read in each page of the block */
+ for (page = 0; page < (CFG_NAND_BLOCK_SIZE /
CFG_NAND_PAGE_SIZE);
+ page++) {
+ if (NAND_PGS) {
+ lbc->fpar = ((page << FPAR_LP_PI_SHIFT) &
FPAR_LP_PI);
+ buf_num = (page & 1) << 2;
+ } else {
+ lbc->fpar = ((page << FPAR_SP_PI_SHIFT) &
FPAR_SP_PI);
+ buf_num = page & 7;
+ }
+ lbc->fmr = CFG_NAND_FMR | 2;
+
+ /* clear event registers */
+ lbc->ltesr = lbc->ltesr;
+ lbc->lteatr = 0;
+
+ /* execute special operation on bank 0 */
+ lbc->lsor = 0;
+ asm ("sync");
+
+ /* copy previous page to RAM */
+ if (srcc) {
+#if !(NAND_HARD_ECC)
+ status =
+ nand_correct_data (srcc, ecc_pos,
+ sizeof (ecc_pos) / 3);
+ ecc_cnt += status;
+ if (status < 0)
+ ecc_err = 1;
+#endif /* !(NAND_HARD_ECC) */
+ src = (unsigned int *)srcc;
+ for (ctr = CFG_NAND_PAGE_SIZE / sizeof (unsigned
int);
+ ctr; ctr--) {
+ *(dst++) = *(src++);
+ }
+ }
+
+ /* store the source address for the next page */
+ srcc = (unsigned char *)((CFG_NAND_BR0_PRELIM &
BR_BA) +
+ (buf_num * 1024));
+
+ /* wait for FCM complete flag or timeout */
+ status = 0;
+ for (ctr = NAND_TIMEOUT; ctr; ctr--) {
+ status = lbc->ltesr;
+ if (status) {
+ break;
+ }
+ }
+
+ /* check for timeout or hardware ECC errors */
+ if (status != LTESR_CC) {
+#if (NAND_HARD_ECC)
+ if (status & LTESR_PAR) {
+ status_putc ('E');
+ ecc_err = 1;
+ } else
+#endif /* NAND_HARD_ECC */
+ {
+ status_putc ('T');
+ return NAND_ERR_TIMEOUT;
+ }
+ }
+
+ /* Check if the block is marked as bad */
+ if (page < 2) {
+ if (srcc[CFG_NAND_PAGE_SIZE +
CFG_NAND_BAD_BLOCK_POS] !=
+ 0xFF) {
+ status_putc ('B');
+ return NAND_BAD_BLOCK;
+ }
+ }
+ }
+
+ /* copy last page to RAM */
+#if !(NAND_HARD_ECC)
+ status = nand_correct_data (srcc, ecc_pos, sizeof
(ecc_pos) / 3);
+ ecc_cnt += status;
+ if (status < 0)
+ ecc_err = 1;
+#endif /* !(NAND_HARD_ECC) */
+ src = (unsigned int *)srcc;
+ for (ctr = CFG_NAND_PAGE_SIZE / sizeof (unsigned
int); ctr; ctr--) {
+ *(dst++) = *(src++);
+ }
+
+ /* abort if any of the pages had uncorrectable
errors */
+ if (ecc_err && (page > 1)) {
+ status_putc ('U');
+ return NAND_ERR_ECC;
+ }
+#if (NAND_HARD_ECC)
+ status_putc ('.');
+#else
+#ifdef CFG_NAND_BOOT_SHOW_ECC_NONE
+ ecc_char = '.';
+#else
+ if (ecc_cnt <= 0) {
+ ecc_char = '.';
+#ifdef CFG_NAND_BOOT_SHOW_ECC_NUM
+ } else if (ecc_cnt <= 9) {
+ ecc_char = '0' + ecc_cnt;
+ } else {
+ ecc_char = 'a' + ecc_cnt - 10;
+#else
+ } else {
+ ecc_char = 'c';
+#endif /* CFG_NAND_BOOT_SHOW_ECC_NUM */
+ }
+#endif /* CFG_NAND_BOOT_SHOW_ECC_NONE */
+ status_putc (ecc_char);
+#endif /* NAND_HARD_ECC */
+
+ return NAND_OK; /* block read completed ok */
+}
+
+/* initial C code called from start.S prior to
relocating code to DDR
+ *
+ * This performs minimal CPU initailization, DDR
initialization, a few
+ * print statements and the calls relocate_code() to
copy the code from
+ * the NAND flash buffer to DDR.
+ */
+void cpu_init_f (volatile immap_t * im)
+{
+ u8 spmf;
+ u8 clkin_div;
+ u32 csb_clk;
+
+ /* RMR - Reset Mode Register - enable checkstop
reset enable */
+ im->reset.rmr = (RMR_CSRE & (1 << RMR_CSRE_SHIFT));
+
+#if defined(CFG_NAND_BR0_PRELIM) \
+ && defined(CFG_NAND_OR0_PRELIM) \
+ && defined(CFG_NAND_LBLAWBAR0_PRELIM) \
+ && defined(CFG_NAND_LBLAWAR0_PRELIM)
+ im->lbus.bank[0].br = CFG_NAND_BR0_PRELIM;
+ im->lbus.bank[0].or = CFG_NAND_OR0_PRELIM;
+ im->sysconf.lblaw[0].bar =
CFG_NAND_LBLAWBAR0_PRELIM;
+ im->sysconf.lblaw[0].ar = CFG_NAND_LBLAWAR0_PRELIM;
+#else
+#error CFG_NAND_BR0_PRELIM, CFG_NAND_OR0_PRELIM,
CFG_NAND_LBLAWBAR0_PRELIM & CFG_NAND_LBLAWAR0_PRELIM
must be defined
+#endif
+ clkin_div = ((im->clk.spmr & SPMR_CKID) >>
SPMR_CKID_SHIFT);
+ spmf = ((im->reset.rcwl & HRCWL_SPMF) >>
HRCWL_SPMF_SHIFT);
+
+ if (im->reset.rcwh & HRCWH_PCI_HOST) {
+#if defined(CONFIG_83XX_CLKIN)
+ csb_clk = CONFIG_83XX_CLKIN * spmf;
+#else
+ csb_clk = 0;
+#endif /* CONFIG_83XX_CLKIN */
+ } else {
+#if defined(CONFIG_83XX_PCICLK)
+ csb_clk = CONFIG_83XX_PCICLK * spmf * (1 +
clkin_div);
+#else
+ csb_clk = 0;
+#endif /* CONFIG_83XX_PCICLK */
+ }
+
+ /* initialize selected port with appropriate baud
rate */
+ NS16550a_init (csb_clk / 16 / CONFIG_BAUDRATE);
+
+ status_puts ("\nNAND-SPL ");
+ status_puts ((char *)(&version_string));
+
+ /* board specific DDR initialization */
+ initdram (0);
+
+ /* copy code to DDR and jump to it - this should not
return */
+ /* NOTE - code has to be copied out of NAND buffer
before
+ * other blocks can be read.
+ */
+ relocate_code (CFG_NAND_RELOC + 0x10000, 0,
CFG_NAND_RELOC);
+
+ /* should never get here */
+ puts ("\nRelocate failed\n");
+
+ /* delay then restart */
+ hang ();
+}
+
+/* called after code is moved to DDR, to complete
boot loading */
+void board_init_r (gd_t * id, ulong dest_addr)
+{
+ int blockcopy_count;
+ unsigned char *dst;
+ void (*uboot) (void* dummy, void* immr);
+ int ret;
+
+ icache_enable (); /* faster execution */
+
+ status_puts ("\nLoading from NAND: ");
+
+ /*
+ * Load U-Boot image from NAND into RAM
+ */
+ dst = (unsigned char *)CFG_NAND_U_BOOT_DST;
+ blockcopy_count = ((CFG_NAND_U_BOOT_SIZE +
CFG_NAND_BLOCK_SIZE - 1)
+ / CFG_NAND_BLOCK_SIZE);
+
+ while (blockcopy_count) {
+ ret = nand_read_next_block ((unsigned int *)dst);
+ switch (ret) {
+ case NAND_OK:
+ /* advance to the next block */
+ dst += CFG_NAND_BLOCK_SIZE;
+ blockcopy_count--;
+ break;
+ case NAND_BAD_BLOCK:
+ /* skip bad block */
+ break;
+ default: /* fatal error */
+#if defined(CFG_NAND_BOOT_QUIET)
+ puts ("\nNAND SPL - ");
+#else
+ putc ('\n');
+#endif /* CFG_NAND_BOOT_QUIET */
+ if (ret == NAND_ERR_TIMEOUT)
+ puts ("**FATAL** : Timeout\n");
+ else
+ puts ("**FATAL** : ECC Error\n");
+ while (1)
+ ;
+
+ /* delay then restart */
+ hang ();
+ break;
+ }
+ }
+
+ /*
+ * Jump to U-Boot image
+ */
+ while(1){
+ uboot = (void (*)(void* dummy, void*
immr))CFG_NAND_U_BOOT_START;
+ (*uboot) (NULL, (void*) CFG_IMMR);
+ }
+}
+
+
diff --git a/board/sheldon/simpc8313/sdram.c
b/board/sheldon/simpc8313/sdram.c
new file mode 100644
index 0000000..9230225
--- /dev/null
+++ b/board/sheldon/simpc8313/sdram.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) Sheldon Instruments, Inc. 2008.
+ *
+ * Initialized by [EMAIL PROTECTED]
+ * Adapted from ../freescale/mpc8313erdb/sdram.c
+ *
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering,
[EMAIL PROTECTED]
+ *
+ * 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,
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <asm/mmu.h>
+#include <spd.h>
+#include <command.h>
+
+int fixed_sdram(void);
+
+#if defined(CONFIG_NAND_SPL)
+#define puts(v) {}
+#define udelay(x) { int i,j; for (i=0; i<x; i++) for
(j=0;j<10000;j++); }
+
+void si_read_i2c(int, int, u8*);
+void si_wait_i2c(void);
+#endif
+
+#define DDRLAWAR_SIZE 0x0000003F
+
+long int initdram(int board_type)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile lbus83xx_t *lbc= &im->lbus;
+
+ u32 msize = 0;
+
+ if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) !=
(u32) im)
+ return -1;
+
+ puts("Initializing\n");
+
+ /* DDR SDRAM - Main SODIMM */
+ im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE &
LAWBAR_BAR;
+
+ msize = fixed_sdram();
+
+ /* Local Bus setup lbcr and mrtpr */
+ lbc->lbcr = CFG_LBC_LBCR;
+ lbc->mrtpr = CFG_LBC_MRTPR;
+ asm("sync");
+
+ puts(" DDR RAM: ");
+ /* return total bus SDRAM size(bytes) -- DDR */
+ return (msize * 1024 * 1024);
+}
+
+/*************************************************************************
+ * fixed sdram init -- reads values from boot
sequencer I2C
+
************************************************************************/
+int fixed_sdram(void)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ u32 msizelog2, msize = 1;
+#if defined(CONFIG_NAND_SPL)
+ u32 i;
+ u8 buffer[135];
+ u32 lbyte = 0, count = 135;
+ u32 addr = 0, data = 0;
+
+ si_read_i2c(lbyte, count, buffer);
+
+ for (i = 18; i < count; i+=7){
+ addr = (u32)buffer[i];
+ addr <<= 8;
+ addr |= (u32)buffer[i + 1];
+ addr <<= 2;
+ data = (u32)buffer[i + 2];
+ data <<= 8;
+ data |= (u32)buffer[i + 3];
+ data <<= 8;
+ data |= (u32)buffer[i + 4];
+ data <<= 8;
+ data |= (u32)buffer[i + 5];
+
+ *((u32 *)(CFG_IMMR + addr)) = data;
+ }
+
+ udelay(200);
+
+ /* enable DDR controller */
+ im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+#endif /* (CONFIG_NAND_SPL) */
+
+ msizelog2 = ((im->sysconf.ddrlaw[0].ar &
DDRLAWAR_SIZE) + 1);
+ msize <<= (msizelog2 - 20);
+
+ return msize;
+}
+
+#if defined(CONFIG_NAND_SPL)
+void si_read_i2c(int lbyte, int count, u8 *buffer)
+{
+ u8 chip = 0x50; /* boot sequencer I2C */
+ u8 ubyte;
+ u8 dummy;
+ u32 i;
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+
+ chip <<= 1;
+ ubyte = (lbyte&0xff00)>>8;
+ lbyte &= 0xff;
+
+ /*
+ * Set up controller
+ */
+ im->i2c[0].cr = 0x00;
+ im->i2c[0].fdr = 0x3f;
+ im->i2c[0].dfsrr = 0x10;
+ im->i2c[0].adr = 0x00;
+ im->i2c[0].sr = 0x80;
+ im->i2c[0].dr = 0;
+
+ while (im->i2c[0].sr & 0x20)
+ ;
+
+ /*
+ * Writing address to device
+ */
+ im->i2c[0].cr = 0xb0;
+ im->i2c[0].dr = chip;
+ si_wait_i2c();
+
+ im->i2c[0].cr = 0xb0;
+ im->i2c[0].dr = ubyte;
+
+ si_wait_i2c();
+ im->i2c[0].dr = lbyte;
+ si_wait_i2c();
+ im->i2c[0].cr = 0xb4;
+ im->i2c[0].dr = chip + 1;
+ si_wait_i2c();
+ im->i2c[0].cr = 0xa0;
+
+ /*
+ * Dummy read
+ */
+ dummy = im->i2c[0].dr;
+
+ si_wait_i2c();
+
+ /*
+ * Read actual data
+ */
+ for (i = 0; i < count; i++)
+ {
+ if (i == (count - 2)) /* Reached next to last byte
*/
+ im->i2c[0].cr = 0xa8;
+ if (i == (count - 1)) /* Reached last byte */
+ im->i2c[0].cr = 0x88;
+
+ /* Read byte of data */
+ buffer[i] = im->i2c[0].dr;
+
+ if (i ==(count - 1))
+ break;
+ si_wait_i2c();
+
+ }
+
+ /*
+ * Reset controller
+ */
+ im->i2c[0].cr = 0x80;
+ im->i2c[0].sr = 0x00;
+
+ return;
+}
+
+void si_wait_i2c(void){
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+
+ while (!(im->i2c[0].sr & 0x02))
+ ;
+ im->i2c[0].sr = 0;
+ return;
+}
+#endif /* CONFIG_NAND_SPL */
diff --git a/board/sheldon/simpc8313/simpc8313.c
b/board/sheldon/simpc8313/simpc8313.c
new file mode 100644
index 0000000..387bc06
--- /dev/null
+++ b/board/sheldon/simpc8313/simpc8313.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) Sheldon Instruments, Inc. 2008.
+ *
+ * Initialized by [EMAIL PROTECTED]
+ * Adapted from ../freescale/mpc8313/mpc8313erdb.c
+ *
+ * ChangeLog
+ *
+ * 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,
+ */
+
+#include <common.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#endif /* defined(CONFIG_OF_LIBFDT) */
+#include <pci.h>
+#include <mpc83xx.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{ /*
+ * Nothing to implement here yet
+ */
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: Sheldon Instruments SIMPC8313\n");
+
+ return 0;
+}
+
+static struct pci_region pci_regions[] = {
+ {
+ bus_start: CFG_PCI1_MEM_BASE,
+ phys_start: CFG_PCI1_MEM_PHYS,
+ size: CFG_PCI1_MEM_SIZE,
+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+ },
+ {
+ bus_start: CFG_PCI1_MMIO_BASE,
+ phys_start: CFG_PCI1_MMIO_PHYS,
+ size: CFG_PCI1_MMIO_SIZE,
+ flags: PCI_REGION_MEM
+ },
+ {
+ bus_start: CFG_PCI1_IO_BASE,
+ phys_start: CFG_PCI1_IO_PHYS,
+ size: CFG_PCI1_IO_SIZE,
+ flags: PCI_REGION_IO
+ }
+};
+
+void pci_init_board(void)
+{
+ volatile immap_t *immr = (volatile immap_t
*)CFG_IMMR;
+ volatile clk83xx_t *clk = (volatile clk83xx_t
*)&immr->clk;
+ volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+ struct pci_region *reg[] = { pci_regions };
+ int warmboot;
+
+ /* Enable all 3 PCI_CLK_OUTPUTs. */
+ clk->occr |= 0xe0000000;
+
+ /*
+ * Configure PCI Local Access Windows
+ */
+ pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
+ pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
+
+ pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+ warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
+#ifndef CFG_8313ERDB_BROKEN_PMC
+ warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF;
+#endif /* CFG_8313ERDB_BROKEN_PMC */
+
+ mpc83xx_pci_init(1, reg, warmboot);
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) &&
defined(CONFIG_OF_BOARD_SETUP)
+
+extern void ft_cpu_setup(void *blob, bd_t *bd);
+extern void ft_pci_setup(void *blob, bd_t *bd);
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+ ft_pci_setup(blob, bd);
+#endif /* CONFIG_PCI */
+}
+#endif /* defined(CONFIG_OF_BOARD_SETUP) */
+#endif /* defined(CONFIG_OF_FLAT_TREE) &&
defined(CONFIG_OF_BOARD_SETUP) */
--
1.5.5.1
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
U-Boot-Users mailing list
U-Boot-Users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/u-boot-users
