summaryrefslogtreecommitdiff
path: root/board
diff options
context:
space:
mode:
Diffstat (limited to 'board')
-rw-r--r--board/mpc7448hpc2/mpc7448hpc2.c489
-rw-r--r--board/mpc7448hpc2/tsi108_init.c662
2 files changed, 1151 insertions, 0 deletions
diff --git a/board/mpc7448hpc2/mpc7448hpc2.c b/board/mpc7448hpc2/mpc7448hpc2.c
new file mode 100644
index 0000000..f90a751
--- /dev/null
+++ b/board/mpc7448hpc2/mpc7448hpc2.c
@@ -0,0 +1,489 @@
+/*
+ * (C) Copyright 2005 Freescale Semiconductor, Inc.
+ *
+ * Roy Zang <tie-fei.zang@freescale.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
+ *
+ * modifications for the Tsi108 Emul Board by avb@Tundra
+ */
+
+/*
+ * board support/init functions for the
+ * Freescale MPC7448 HPC2 (High-Performance Computing 2 Platform).
+ */
+
+#include <common.h>
+#include <74xx_7xx.h>
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+extern void ft_cpu_setup(void *blob, bd_t *bd);
+#endif
+
+#undef DEBUG
+
+extern void flush_data_cache(void);
+extern void invalidate_l1_instruction_cache(void);
+extern void tsi108_init_f(void);
+
+int display_mem_map(void);
+
+void after_reloc(ulong dest_addr)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /*
+ * Jump to the main U-Boot board init code
+ */
+ board_init_r((gd_t *) gd, dest_addr);
+ /* NOTREACHED */
+}
+
+/*
+ * Check Board Identity:
+ *
+ * report board type
+ */
+
+int checkboard(void)
+{
+ int l_type = 0;
+
+ printf("BOARD: %s\n", CFG_BOARD_NAME);
+ return (l_type);
+}
+
+/*
+ * Read Processor ID:
+ *
+ * report calling processor number
+ */
+
+int read_pid(void)
+{
+ return 0; /* we are on single CPU platform for a while */
+}
+
+long int dram_size(int board_type)
+{
+ return 0x20000000; /* 256M bytes */
+}
+
+long int initdram(int board_type)
+{
+ return dram_size(board_type);
+}
+
+/* DRAM check routines copied from gw8260 */
+
+#if defined (CFG_DRAM_TEST)
+
+/*********************************************************************/
+/* NAME: move64() - moves a double word (64-bit) */
+/* */
+/* DESCRIPTION: */
+/* this function performs a double word move from the data at */
+/* the source pointer to the location at the destination pointer. */
+/* */
+/* INPUTS: */
+/* unsigned long long *src - pointer to data to move */
+/* */
+/* OUTPUTS: */
+/* unsigned long long *dest - pointer to locate to move data */
+/* */
+/* RETURNS: */
+/* None */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* May cloober fr0. */
+/* */
+/*********************************************************************/
+static void move64(unsigned long long *src, unsigned long long *dest)
+{
+ asm("lfd 0, 0(3)\n\t" /* fpr0 = *scr */
+ "stfd 0, 0(4)" /* *dest = fpr0 */
+ : : :"fr0"); /* Clobbers fr0 */
+ return;
+}
+
+#if defined (CFG_DRAM_TEST_DATA)
+
+unsigned long long pattern[] = {
+ 0xaaaaaaaaaaaaaaaaULL,
+ 0xccccccccccccccccULL,
+ 0xf0f0f0f0f0f0f0f0ULL,
+ 0xff00ff00ff00ff00ULL,
+ 0xffff0000ffff0000ULL,
+ 0xffffffff00000000ULL,
+ 0x00000000ffffffffULL,
+ 0x0000ffff0000ffffULL,
+ 0x00ff00ff00ff00ffULL,
+ 0x0f0f0f0f0f0f0f0fULL,
+ 0x3333333333333333ULL,
+ 0x5555555555555555ULL
+};
+
+/*********************************************************************/
+/* NAME: mem_test_data() - test data lines for shorts and opens */
+/* */
+/* DESCRIPTION: */
+/* Tests data lines for shorts and opens by forcing adjacent data */
+/* to opposite states. Because the data lines could be routed in */
+/* an arbitrary manner the must ensure test patterns ensure that */
+/* every case is tested. By using the following series of binary */
+/* patterns every combination of adjacent bits is test regardless */
+/* of routing. */
+/* */
+/* ...101010101010101010101010 */
+/* ...110011001100110011001100 */
+/* ...111100001111000011110000 */
+/* ...111111110000000011111111 */
+/* */
+/* Carrying this out, gives us six hex patterns as follows: */
+/* */
+/* 0xaaaaaaaaaaaaaaaa */
+/* 0xcccccccccccccccc */
+/* 0xf0f0f0f0f0f0f0f0 */
+/* 0xff00ff00ff00ff00 */
+/* 0xffff0000ffff0000 */
+/* 0xffffffff00000000 */
+/* */
+/* The number test patterns will always be given by: */
+/* */
+/* log(base 2)(number data bits) = log2 (64) = 6 */
+/* */
+/* To test for short and opens to other signals on our boards. we */
+/* simply */
+/* test with the 1's complemnt of the paterns as well. */
+/* */
+/* OUTPUTS: */
+/* Displays failing test pattern */
+/* */
+/* RETURNS: */
+/* 0 - Passed test */
+/* 1 - Failed test */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* Assumes only one one SDRAM bank */
+/* */
+/*********************************************************************/
+int mem_test_data(void)
+{
+ unsigned long long *pmem = (unsigned long long *)CFG_MEMTEST_START;
+ unsigned long long temp64;
+ int num_patterns = sizeof(pattern) / sizeof(pattern[0]);
+ int i;
+ unsigned int hi, lo;
+
+ for (i = 0; i < num_patterns; i++) {
+ move64(&(pattern[i]), pmem);
+ move64(pmem, &temp64);
+
+ /* hi = (temp64>>32) & 0xffffffff; */
+ /* lo = temp64 & 0xffffffff; */
+ /* printf("\ntemp64 = 0x%08x%08x", hi, lo); */
+
+ hi = (pattern[i] >> 32) & 0xffffffff;
+ lo = pattern[i] & 0xffffffff;
+ /* printf("\npattern[%d] = 0x%08x%08x", i, hi, lo); */
+
+ if (temp64 != pattern[i]) {
+ printf("\n Data Test Failed, pattern 0x%08x%08x",
+ hi, lo);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+#endif /* CFG_DRAM_TEST_DATA */
+
+#if defined (CFG_DRAM_TEST_ADDRESS)
+/*********************************************************************/
+/* NAME: mem_test_address() - test address lines */
+/* */
+/* DESCRIPTION: */
+/* This function performs a test to verify that each word im */
+/* memory is uniquly addressable. The test sequence is as follows: */
+/* */
+/* 1) write the address of each word to each word. */
+/* 2) verify that each location equals its address */
+/* */
+/* OUTPUTS: */
+/* Displays failing test pattern and address */
+/* */
+/* RETURNS: */
+/* 0 - Passed test */
+/* 1 - Failed test */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* */
+/* */
+/*********************************************************************/
+int mem_test_address(void)
+{
+ volatile unsigned int *pmem =
+ (volatile unsigned int *)CFG_MEMTEST_START;
+ const unsigned int size = (CFG_MEMTEST_END - CFG_MEMTEST_START) / 4;
+ unsigned int i;
+
+ /* write address to each location */
+ for (i = 0; i < size; i++) {
+ pmem[i] = i;
+ }
+
+ /* verify each loaction */
+ for (i = 0; i < size; i++) {
+ if (pmem[i] != i) {
+ printf("\n Address Test Failed at 0x%x", i);
+ return 1;
+ }
+ }
+ return 0;
+}
+#endif /* CFG_DRAM_TEST_ADDRESS */
+
+#if defined (CFG_DRAM_TEST_WALK)
+/*********************************************************************/
+/* NAME: mem_march() - memory march */
+/* */
+/* DESCRIPTION: */
+/* Marches up through memory. At each location verifies rmask if */
+/* read = 1. At each location write wmask if write = 1. Displays */
+/* failing address and pattern. */
+/* */
+/* INPUTS: */
+/* volatile unsigned long long * base - start address of test */
+/* unsigned int size - number of dwords(64-bit) to test */
+/* unsigned long long rmask - read verify mask */
+/* unsigned long long wmask - wrtie verify mask */
+/* short read - verifies rmask if read = 1 */
+/* short write - writes wmask if write = 1 */
+/* */
+/* OUTPUTS: */
+/* Displays failing test pattern and address */
+/* */
+/* RETURNS: */
+/* 0 - Passed test */
+/* 1 - Failed test */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* */
+/* */
+/*********************************************************************/
+int mem_march(volatile unsigned long long *base,
+ unsigned int size,
+ unsigned long long rmask,
+ unsigned long long wmask, short read, short write)
+{
+ unsigned int i;
+ unsigned long long temp;
+ unsigned int hitemp, lotemp, himask, lomask;
+
+ for (i = 0; i < size; i++) {
+ if (read != 0) {
+ /* temp = base[i]; */
+ move64((unsigned long long *)&(base[i]), &temp);
+ if (rmask != temp) {
+ hitemp = (temp >> 32) & 0xffffffff;
+ lotemp = temp & 0xffffffff;
+ himask = (rmask >> 32) & 0xffffffff;
+ lomask = rmask & 0xffffffff;
+
+ printf("\n Walking one's test failed: \
+ address = 0x%08x," "\n\texpected \
+ 0x%08x%08x, found 0x%08x%08x", i << 3,\
+ himask, lomask, hitemp, lotemp);
+ return 1;
+ }
+ }
+ if (write != 0) {
+ /* base[i] = wmask; */
+ move64(&wmask, (unsigned long long *)&(base[i]));
+ }
+ }
+ return 0;
+}
+#endif /* CFG_DRAM_TEST_WALK */
+
+/*********************************************************************/
+/* NAME: mem_test_walk() - a simple walking ones test */
+/* */
+/* DESCRIPTION: */
+/* Performs a walking ones through entire physical memory. The */
+/* test uses as series of memory marches, mem_march(), to verify */
+/* and write the test patterns to memory. The test sequence is as */
+/* follows: */
+/* 1) march writing 0000...0001 */
+/* 2) march verifying 0000...0001 , writing 0000...0010 */
+/* 3) repeat step 2 shifting masks left 1 bit each time unitl */
+/* the write mask equals 1000...0000 */
+/* 4) march verifying 1000...0000 */
+/* The test fails if any of the memory marches return a failure. */
+/* */
+/* OUTPUTS: */
+/* Displays which pass on the memory test is executing */
+/* */
+/* RETURNS: */
+/* 0 - Passed test */
+/* 1 - Failed test */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* */
+/* */
+/*********************************************************************/
+int mem_test_walk(void)
+{
+ unsigned long long mask;
+ volatile unsigned long long *pmem =
+ (volatile unsigned long long *)CFG_MEMTEST_START;
+ const unsigned long size = (CFG_MEMTEST_END - CFG_MEMTEST_START) / 8;
+
+ unsigned int i;
+
+ mask = 0x01;
+
+ printf("Initial Pass");
+ mem_march(pmem, size, 0x0, 0x1, 0, 1);
+
+ printf("\b\b\b\b\b\b\b\b\b\b\b\b");
+ printf(" ");
+ printf(" ");
+ printf("\b\b\b\b\b\b\b\b\b\b\b\b");
+
+ for (i = 0; i < 63; i++) {
+ printf("Pass %2d", i + 2);
+ if (mem_march(pmem, size, mask, mask << 1, 1, 1) != 0) {
+ /*printf("mask: 0x%x, pass: %d, ", mask, i); */
+ return 1;
+ }
+ mask = mask << 1;
+ printf("\b\b\b\b\b\b\b");
+ }
+
+ printf("Last Pass");
+ if (mem_march(pmem, size, 0, mask, 0, 1) != 0) {
+ /* printf("mask: 0x%x", mask); */
+ return 1;
+ }
+ printf("\b\b\b\b\b\b\b\b\b");
+ printf(" ");
+ printf("\b\b\b\b\b\b\b\b\b");
+
+ return 0;
+}
+
+/*********************************************************************/
+/* NAME: testdram() - calls any enabled memory tests */
+/* */
+/* DESCRIPTION: */
+/* Runs memory tests if the environment test variables are set to */
+/* 'y'. */
+/* */
+/* INPUTS: */
+/* testdramdata - If set to 'y', data test is run. */
+/* testdramaddress - If set to 'y', address test is run. */
+/* testdramwalk - If set to 'y', walking ones test is run */
+/* */
+/* OUTPUTS: */
+/* None */
+/* */
+/* RETURNS: */
+/* 0 - Passed test */
+/* 1 - Failed test */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* */
+/* */
+/*********************************************************************/
+int testdram(void)
+{
+ char *s;
+ int rundata, runaddress, runwalk;
+
+ s = getenv("testdramdata");
+ rundata = (s && (*s == 'y')) ? 1 : 0;
+ s = getenv("testdramaddress");
+ runaddress = (s && (*s == 'y')) ? 1 : 0;
+ s = getenv("testdramwalk");
+ runwalk = (s && (*s == 'y')) ? 1 : 0;
+
+/* rundata = 1; */
+/* runaddress = 0; */
+/* runwalk = 0; */
+
+ if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
+ printf("Testing RAM from 0x%08x to 0x%08x ... \
+ (don't panic... that will take a moment !!!!)\n", \
+ CFG_MEMTEST_START, CFG_MEMTEST_END);
+ }
+#ifdef CFG_DRAM_TEST_DATA
+ if (rundata == 1) {
+ printf("Test DATA ... ");
+ if (mem_test_data () == 1) {
+ printf("failed \n");
+ return 1;
+ } else
+ printf("ok \n");
+ }
+#endif
+#ifdef CFG_DRAM_TEST_ADDRESS
+ if (runaddress == 1) {
+ printf("Test ADDRESS ... ");
+ if (mem_test_address () == 1) {
+ printf("failed \n");
+ return 1;
+ } else
+ printf("ok \n");
+ }
+#endif
+#ifdef CFG_DRAM_TEST_WALK
+ if (runwalk == 1) {
+ printf("Test WALKING ONEs ... ");
+ if (mem_test_walk() == 1) {
+ printf("failed \n");
+ return 1;
+ } else
+ printf("ok \n");
+ }
+#endif
+ if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
+ printf("passed\n");
+ }
+ return 0;
+
+}
+#endif /* CFG_DRAM_TEST */
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+ ft_cpu_setup(blob, bd);
+
+ p = ft_get_prop(blob, "/memory/reg", &len);
+ if (p != NULL) {
+ *p++ = cpu_to_be32(bd->bi_memstart);
+ *p = cpu_to_be32(bd->bi_memsize);
+ }
+}
+#endif
diff --git a/board/mpc7448hpc2/tsi108_init.c b/board/mpc7448hpc2/tsi108_init.c
new file mode 100644
index 0000000..6f517f5
--- /dev/null
+++ b/board/mpc7448hpc2/tsi108_init.c
@@ -0,0 +1,662 @@
+/*****************************************************************************
+ * (C) Copyright 2003; Tundra Semiconductor Corp.
+ *
+ * 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
+ *****************************************************************************/
+
+/*----------------------------------------------------------------------------
+ * FILENAME: tsi108_init.c
+ *
+ * Originator: Alex Bounine
+ *
+ * DESCRIPTION:
+ * Initialization code for the Tundra Tsi108 bridge chip
+ *---------------------------------------------------------------------------*/
+
+#include <common.h>
+#include <74xx_7xx.h>
+#include <config.h>
+#include <version.h>
+#include <asm/processor.h>
+#include <tsi108.h>
+
+extern void mpicInit(int verbose);
+
+/*
+ * Configuration Options
+ */
+
+typedef struct {
+ ulong upper;
+ ulong lower;
+} PB2OCN_LUT_ENTRY;
+
+PB2OCN_LUT_ENTRY pb2ocn_lut1[32] = {
+ /* 0 - 7 */
+ {0x00000000, 0x00000201}, /* PBA=0xE000_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE100_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE200_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE300_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE400_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE500_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE600_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE700_0000 -> PCI/X (Byte-Swap) */
+
+ /* 8 - 15 */
+ {0x00000000, 0x00000201}, /* PBA=0xE800_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE900_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEA00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEB00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEC00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xED00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEE00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEF00_0000 -> PCI/X (Byte-Swap) */
+
+ /* 16 - 23 */
+ {0x00000000, 0x00000201}, /* PBA=0xF000_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF100_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF200_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF300_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF400_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF500_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF600_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF700_0000 -> PCI/X (Byte-Swap) */
+ /* 24 - 31 */
+ {0x00000000, 0x00000201}, /* PBA=0xF800_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF900_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xFA00_0000 -> PCI/X PCI I/O (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xFB00_0000 -> PCI/X PCI Config (Byte-Swap) */
+
+ {0x00000000, 0x02000240}, /* PBA=0xFC00_0000 -> HLP */
+ {0x00000000, 0x01000240}, /* PBA=0xFD00_0000 -> HLP */
+ {0x00000000, 0x03000240}, /* PBA=0xFE00_0000 -> HLP */
+ {0x00000000, 0x00000240} /* PBA=0xFF00_0000 -> HLP : (Translation Enabled + Byte-Swap)*/
+};
+
+#ifdef CFG_CLK_SPREAD
+typedef struct {
+ ulong ctrl0;
+ ulong ctrl1;
+} PLL_CTRL_SET;
+
+/*
+ * Clock Generator SPLL0 initialization values
+ * PLL0 configuration table for various PB_CLKO freq.
+ * Uses pre-calculated values for Fs = 30 kHz, D = 0.5%
+ * Fout depends on required PB_CLKO. Based on Fref = 33 MHz
+ */
+
+static PLL_CTRL_SET pll0_config[8] = {
+ {0x00000000, 0x00000000}, /* 0: bypass */
+ {0x00000000, 0x00000000}, /* 1: reserved */
+ {0x00430044, 0x00000043}, /* 2: CG_PB_CLKO = 183 MHz */
+ {0x005c0044, 0x00000039}, /* 3: CG_PB_CLKO = 100 MHz */
+ {0x005c0044, 0x00000039}, /* 4: CG_PB_CLKO = 133 MHz */
+ {0x004a0044, 0x00000040}, /* 5: CG_PB_CLKO = 167 MHz */
+ {0x005c0044, 0x00000039}, /* 6: CG_PB_CLKO = 200 MHz */
+ {0x004f0044, 0x0000003e} /* 7: CG_PB_CLKO = 233 MHz */
+};
+#endif /* CFG_CLK_SPREAD */
+
+/*
+ * Prosessor Bus Clock (in MHz) defined by CG_PB_SELECT
+ * (based on recommended Tsi108 reference clock 33MHz)
+ */
+static int pb_clk_sel[8] = { 0, 0, 183, 100, 133, 167, 200, 233 };
+
+/*
+ * get_board_bus_clk()
+ *
+ * returns the bus clock in Hz.
+ */
+unsigned long get_board_bus_clk(void)
+{
+ ulong i;
+
+ /* Detect PB clock freq. */
+ i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
+ i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
+
+ return pb_clk_sel[i] * 1000000;
+}
+
+/*
+ * board_early_init_f()
+ *
+ * board-specific initialization executed from flash
+ */
+
+int board_early_init_f(void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ ulong i;
+
+ gd->mem_clk = 0;
+ i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
+ i = (i >> 20) & 0x07;
+ switch (i) {
+ case 0:
+ printf("Using external clock\n");
+ break;
+ case 1:
+ gd->mem_clk = gd->bus_clk;
+ break;
+ case 4:
+ case 5:
+ case 6:
+ gd->mem_clk = pb_clk_sel[i] * 1000000;
+ break;
+ default:
+ printf("Invalid DDR2 clock setting\n");
+ return -1;
+ }
+ printf("BUS! %d MHz\n", get_board_bus_clk() / 1000000);
+ printf("MEM! %d MHz\n", gd->mem_clk / 1000000);
+ return 0;
+}
+
+/*
+ * board_early_init_r() - Tsi108 initialization function executed right after
+ * relocation. Contains code that cannot be executed from flash.
+ */
+
+int board_early_init_r(void)
+{
+ ulong temp, i;
+ ulong reg_val;
+ volatile ulong *reg_ptr;
+
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x900);
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = 0x00000201; /* SWAP ENABLED */
+ *reg_ptr++ = 0x00;
+ }
+
+ __asm__ __volatile__("eieio");
+ __asm__ __volatile__("sync");
+
+ /* Setup PB_OCN_BAR2: size 256B + ENable @ 0x0_80000000 */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2,
+ 0x80000001);
+ __asm__ __volatile__("sync");
+
+ /* Make sure that OCN_BAR2 decoder is set (to allow following immediate
+ * read from SDRAM)
+ */
+
+ temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2);
+ __asm__ __volatile__("sync");
+
+ /*
+ * Remap PB_OCN_BAR1 to accomodate PCI-bus aperture and EPROM into the
+ * processor bus address space. Immediately after reset LUT and address
+ * translation are disabled for this BAR. Now we have to initialize LUT
+ * and switch from the BOOT mode to the normal operation mode.
+ *
+ * The aperture defined by PB_OCN_BAR1 startes at address 0xE0000000
+ * and covers 512MB of address space. To allow larger aperture we also
+ * have to relocate register window of Tsi108
+ *
+ * Initialize LUT (32-entries) prior switching PB_OCN_BAR1 from BOOT
+ * mode.
+ *
+ * initialize pointer to LUT associated with PB_OCN_BAR1
+ */
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x800);
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = pb2ocn_lut1[i].lower;
+ *reg_ptr++ = pb2ocn_lut1[i].upper;
+ }
+
+ __asm__ __volatile__("sync");
+
+ /* Base addresses for Cs0, CS1, CS2, CS3 */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_ADDR,
+ 0x00000000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_ADDR,
+ 0x00100000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_ADDR,
+ 0x00200000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_ADDR,
+ 0x00300000);
+ __asm__ __volatile__("sync");
+
+ /* Masks for HLP banks */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__("sync");
+
+ /* Set CTRL0 values for banks */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL0,
+ 0x7FFC44C2);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL0,
+ 0x7FFC44C0);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL0,
+ 0x7FFC44C0);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL0,
+ 0x7FFC44C2);
+ __asm__ __volatile__("sync");
+
+ /* Set banks to latched mode, enabled, and other default settings */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__("sync");
+
+ /*
+ * Set new value for PB_OCN_BAR1: switch from BOOT to LUT mode.
+ * value for PB_OCN_BAR1: (BA-0xE000_0000 + size 512MB + ENable)
+ */
+ out32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1,
+ 0xE0000011);
+ __asm__ __volatile__("sync");
+
+ /* Make sure that OCN_BAR2 decoder is set (to allow following
+ * immediate read from SDRAM)
+ */
+
+ temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1);
+ __asm__ __volatile__("sync");
+
+ /*
+ * SRI: At this point we have enabled the HLP banks. That means we can
+ * now read from the NVRAM and initialize the environment variables.
+ * We will over-ride the env_init called in board_init_f
+ * This is really a work-around because, the HLP bank 1
+ * where NVRAM resides is not visible during board_init_f
+ * (lib_ppc/board.c)
+ * Alternatively, we could use the I2C EEPROM at start-up to configure
+ * and enable all HLP banks and not just HLP 0 as is being done for
+ * Taiga Rev. 2.
+ */
+
+ env_init();
+
+#ifndef DISABLE_PBM
+
+ /*
+ * For IBM processors we have to set Address-Only commands generated
+ * by PBM that are different from ones set after reset.
+ */
+
+ temp = get_cpu_type();
+
+ if ((CPU_750FX == temp) || (CPU_750GX == temp)) {
+ out32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_MCMD,
+ 0x00009955);
+ }
+#endif /* DISABLE_PBM */
+
+#ifdef CONFIG_PCI
+ /*
+ * Initialize PCI/X block
+ */
+
+ /* Map PCI/X Configuration Space (16MB @ 0x0_FE000000) */
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_BAR0_UPPER,
+ 0);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_BAR0,
+ 0xFB000001);
+ __asm__ __volatile__("sync");
+
+ /* Set Bus Number for the attached PCI/X bus (we will use 0 for NB) */
+
+ temp =
+ in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT);
+
+ temp &= ~0xFF00; /* Clear the BUS_NUM field */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT,
+ temp);
+
+ /* Map PCI/X IO Space (64KB @ 0x0_FD000000) takes one 16MB LUT entry */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO_UPPER,
+ 0);
+ __asm__ __volatile__("sync");
+
+ /* This register is on the PCI side to interpret the address it receives
+ * and maps it as a IO address.
+ */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO,
+ 0xFA000001);
+ __asm__ __volatile__("sync");
+
+ /*
+ * Map PCI/X Memory Space
+ *
+ * Transactions directed from OCM to PCI Memory Space are directed
+ * from PB to PCI
+ * unchanged (as defined by PB_OCN_BAR1,2 and LUT settings).
+ * If address remapping is required the corresponding PCI_PFAB_MEM32
+ * and PCI_PFAB_PFMx register groups have to be configured.
+ *
+ * Map the path from the PCI/X bus into the system memory
+ *
+ * The memory mapped window assotiated with PCI P2O_BAR2 provides
+ * access to the system memory without address remapping.
+ * All system memory is opened for accesses initiated by PCI/X bus
+ * masters.
+ *
+ * Initialize LUT associated with PCI P2O_BAR2
+ *
+ * set pointer to LUT associated with PCI P2O_BAR2
+ */
+
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x500);
+
+#ifdef DISABLE_PBM
+
+ /* In case when PBM is disabled (no HW supported cache snoopng on PB)
+ * P2O_BAR2 is directly mapped into the system memory without address
+ * translation.
+ */
+
+ reg_val = 0x00000004; /* SDRAM port + NO Addr_Translation */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
+ *reg_ptr++ = 0; /* P2O_BAR2_LUT_UPPERx */
+ }
+
+ /* value for PCI BAR2 (size = 512MB, Enabled, No Addr. Translation) */
+ reg_val = 0x00007500;
+#else
+
+ reg_val = 0x00000002; /* Destination port = PBM */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
+/* P2O_BAR2_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
+ *reg_ptr++ = 0x40000000;
+/* offset = 16MB, address translation is enabled to allow byte swapping */
+ reg_val += 0x01000000;
+ }
+
+/* value for PCI BAR2 (size = 512MB, Enabled, Address Translation Enabled) */
+ reg_val = 0x00007100;
+#endif
+
+ __asm__ __volatile__("eieio");
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
+ reg_val);
+ __asm__ __volatile__("sync");
+
+ /* Set 64-bit PCI bus address for system memory
+ * ( 0 is the best choice for easy mapping)
+ */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2,
+ 0x00000000);
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2_UPPER,
+ 0x00000000);
+ __asm__ __volatile__("sync");
+
+#ifndef DISABLE_PBM
+ /*
+ * The memory mapped window assotiated with PCI P2O_BAR3 provides
+ * access to the system memory using SDRAM OCN port and address
+ * translation. This is alternative way to access SDRAM from PCI
+ * required for Tsi108 emulation testing.
+ * All system memory is opened for accesses initiated by
+ * PCI/X bus masters.
+ *
+ * Initialize LUT associated with PCI P2O_BAR3
+ *
+ * set pointer to LUT associated with PCI P2O_BAR3
+ */
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x600);
+
+ reg_val = 0x00000004; /* Destination port = SDC */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR3_LUTx */
+
+/* P2O_BAR3_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
+ *reg_ptr++ = 0;
+
+/* offset = 16MB, address translation is enabled to allow byte swapping */
+ reg_val += 0x01000000;
+ }
+
+ __asm__ __volatile__("eieio");
+ __asm__ __volatile__("sync");
+
+ /* Configure PCI P2O_BAR3 (size = 512MB, Enabled) */
+
+ reg_val =
+ in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET +
+ PCI_P2O_PAGE_SIZES);
+ reg_val &= ~0x00FF;
+ reg_val |= 0x0071;
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
+ reg_val);
+ __asm__ __volatile__("sync");
+
+ /* Set 64-bit base PCI bus address for window (0x20000000) */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3_UPPER,
+ 0x00000000);
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3,
+ 0x20000000);
+ __asm__ __volatile__("sync");
+
+#endif /* !DISABLE_PBM */
+
+#ifdef ENABLE_PCI_CSR_BAR
+ /* open if required access to Tsi108 CSRs from the PCI/X bus */
+ /* enable BAR0 on the PCI/X bus */
+ reg_val =
+ in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_MISC_CSR);
+ reg_val |= 0x02;
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_MISC_CSR,
+ reg_val);
+ __asm__ __volatile__("sync");
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0_UPPER,
+ 0x00000000);
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0,
+ CFG_TSI108_CSR_BASE);
+ __asm__ __volatile__("sync");
+
+#endif
+
+ /*
+ * Finally enable PCI/X Bus Master and Memory Space access
+ */
+
+ reg_val = in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR);
+ reg_val |= 0x06;
+ out32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR, reg_val);
+ __asm__ __volatile__("sync");
+
+#endif /* CONFIG_PCI */
+
+ /*
+ * Initialize MPIC outputs (interrupt pins):
+ * Interrupt routing on the Grendel Emul. Board:
+ * PB_INT[0] -> INT (CPU0)
+ * PB_INT[1] -> INT (CPU1)
+ * PB_INT[2] -> MCP (CPU0)
+ * PB_INT[3] -> MCP (CPU1)
+ * Set interrupt controller outputs as Level_Sensitive/Active_Low
+ */
+ out32(CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(0), 0x02);
+ out32(CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(1), 0x02);
+ out32(CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(2), 0x02);
+ out32(CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(3), 0x02);
+ __asm__ __volatile__("sync");
+
+ /*
+ * Ensure that Machine Check exception is enabled
+ * We need it to support PCI Bus probing (configuration reads)
+ */
+
+ reg_val = mfmsr();
+ mtmsr(reg_val | MSR_ME);
+
+ return 0;
+}
+
+/*
+ * Needed to print out L2 cache info
+ * used in the misc_init_r function
+ */
+
+unsigned long get_l2cr(void)
+{
+ unsigned long l2controlreg;
+ asm volatile ("mfspr %0, 1017":"=r" (l2controlreg):);
+ return l2controlreg;
+}
+
+/*
+ * misc_init_r()
+ *
+ * various things to do after relocation
+ *
+ */
+
+int misc_init_r(void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+#ifdef CFG_CLK_SPREAD /* Initialize Spread-Spectrum Clock generation */
+ ulong i;
+
+ /* Ensure that Spread-Spectrum is disabled */
+ out32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, 0);
+ out32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0);
+
+ /* Initialize PLL1: CG_PCI_CLK , internal OCN_CLK
+ * Uses pre-calculated value for Fout = 800 MHz, Fs = 30 kHz, D = 0.5%
+ */
+
+ out32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0x002e0044); /* D = 0.25% */
+ out32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL1, 0x00000039); /* BWADJ */
+
+ /* Initialize PLL0: CG_PB_CLKO */
+ /* Detect PB clock freq. */
+ i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
+ i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
+
+ out32(CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, pll0_config[i].ctrl0);
+ out32(CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL1, pll0_config[i].ctrl1);
+
+ /* Wait and set SSEN for both PLL0 and 1 */
+ udelay(1000);
+ out32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0x802e0044); /* D=0.25% */
+ out32(CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0,
+ 0x80000000 | pll0_config[i].ctrl0);
+#endif /* CFG_CLK_SPREAD */
+
+#ifdef CFG_L2
+ l2cache_enable();
+#endif
+ printf("BUS: %d MHz\n", gd->bus_clk / 1000000);
+ printf("MEM: %d MHz\n", gd->mem_clk / 1000000);
+
+ /*
+ * All the information needed to print the cache details is avaiblable
+ * at this point i.e. above call to l2cache_enable is the very last
+ * thing done with regards to enabling diabling the cache.
+ * So this seems like a good place to print all this information
+ */
+
+ printf("CACHE: ");
+ switch (get_cpu_type()) {
+ case CPU_7447A:
+ printf("L1 Instruction cache - 32KB 8-way");
+ (get_hid0() & (1 << 15)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ printf(" L1 Data cache - 32KB 8-way");
+ (get_hid0() & (1 << 14)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ printf(" Unified L2 cache - 512KB 8-way");
+ (get_l2cr() & (1 << 31)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ printf("\n");
+ break;
+
+ case CPU_7448:
+ printf("L1 Instruction cache - 32KB 8-way");
+ (get_hid0() & (1 << 15)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ printf(" L1 Data cache - 32KB 8-way");
+ (get_hid0() & (1 << 14)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ printf(" Unified L2 cache - 1MB 8-way");
+ (get_l2cr() & (1 << 31)) ? printf(" ENABLED\n") :
+ printf(" DISABLED\n");
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
generated by cgit v1.1 at 2024-12-23 19:41:41 +0000