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-rw-r--r--post/cpu/ppc4xx/Makefile2
-rw-r--r--post/cpu/ppc4xx/cache.c41
-rw-r--r--post/cpu/ppc4xx/denali_ecc.c267
-rw-r--r--post/cpu/ppc4xx/ether.c42
4 files changed, 308 insertions, 44 deletions
diff --git a/post/cpu/ppc4xx/Makefile b/post/cpu/ppc4xx/Makefile
index f1034da..e3f44b7 100644
--- a/post/cpu/ppc4xx/Makefile
+++ b/post/cpu/ppc4xx/Makefile
@@ -24,6 +24,6 @@
LIB = libpostppc4xx.a
AOBJS = cache_4xx.o
-COBJS = cache.o ether.o fpu.o spr.o uart.o watchdog.o
+COBJS = cache.o denali_ecc.o ether.o fpu.o spr.o uart.o watchdog.o
include $(TOPDIR)/post/rules.mk
diff --git a/post/cpu/ppc4xx/cache.c b/post/cpu/ppc4xx/cache.c
index 30d5088..c86a150 100644
--- a/post/cpu/ppc4xx/cache.c
+++ b/post/cpu/ppc4xx/cache.c
@@ -51,8 +51,6 @@ int cache_post_test4 (int tlb, void *p, int size);
int cache_post_test5 (int tlb, void *p, int size);
int cache_post_test6 (int tlb, void *p, int size);
-static int tlb = -1; /* index to the victim TLB entry */
-
#ifdef CONFIG_440
static unsigned char testarea[CACHE_POST_SIZE]
__attribute__((__aligned__(CACHE_POST_SIZE)));
@@ -60,9 +58,10 @@ __attribute__((__aligned__(CACHE_POST_SIZE)));
int cache_post_test (int flags)
{
- void* virt = (void*)CFG_POST_CACHE_ADDR;
+ void *virt = (void *)CFG_POST_CACHE_ADDR;
int ints;
int res = 0;
+ int tlb = -1; /* index to the victim TLB entry */
/*
* All 44x variants deal with cache management differently
@@ -73,25 +72,23 @@ int cache_post_test (int flags)
#ifdef CONFIG_440
int word0, i;
- if (tlb < 0) {
- /*
- * Allocate a new TLB entry, since we are going to modify
- * the write-through and caching inhibited storage attributes.
- */
- program_tlb((u32)testarea, (u32)virt,
- CACHE_POST_SIZE, TLB_WORD2_I_ENABLE);
-
- /* Find the TLB entry */
- for (i = 0;; i++) {
- if (i >= PPC4XX_TLB_SIZE) {
- printf ("Failed to program tlb entry\n");
- return -1;
- }
- word0 = mftlb1(i);
- if (TLB_WORD0_EPN_DECODE(word0) == (u32)virt) {
- tlb = i;
- break;
- }
+ /*
+ * Allocate a new TLB entry, since we are going to modify
+ * the write-through and caching inhibited storage attributes.
+ */
+ program_tlb((u32)testarea, (u32)virt, CACHE_POST_SIZE,
+ TLB_WORD2_I_ENABLE);
+
+ /* Find the TLB entry */
+ for (i = 0;; i++) {
+ if (i >= PPC4XX_TLB_SIZE) {
+ printf ("Failed to program tlb entry\n");
+ return -1;
+ }
+ word0 = mftlb1(i);
+ if (TLB_WORD0_EPN_DECODE(word0) == (u32)virt) {
+ tlb = i;
+ break;
}
}
#endif
diff --git a/post/cpu/ppc4xx/denali_ecc.c b/post/cpu/ppc4xx/denali_ecc.c
new file mode 100644
index 0000000..7723483
--- /dev/null
+++ b/post/cpu/ppc4xx/denali_ecc.c
@@ -0,0 +1,267 @@
+/*
+ * (C) Copyright 2007
+ * Developed for DENX Software Engineering GmbH.
+ *
+ * Author: Pavel Kolesnikov <concord@emcraft.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
+ */
+
+/* define DEBUG for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG
+#endif
+
+#include <common.h>
+#include <watchdog.h>
+
+#if defined(CONFIG_POST) && (defined(CONFIG_440EPX) || defined(CONFIG_440GRX))
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_ECC
+
+/*
+ * MEMORY ECC test
+ *
+ * This test performs the checks ECC facility of memory.
+ */
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/io.h>
+#include <ppc440.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+const static unsigned char syndrome_codes[] = {
+ 0xF4, 0XF1, 0XEC, 0XEA, 0XE9, 0XE6, 0XE5, 0XE3,
+ 0XDC, 0XDA, 0XD9, 0XD6, 0XD5, 0XD3, 0XCE, 0XCB,
+ 0xB5, 0XB0, 0XAD, 0XAB, 0XA8, 0XA7, 0XA4, 0XA2,
+ 0X9D, 0X9B, 0X98, 0X97, 0X94, 0X92, 0X8F, 0X8A,
+ 0x75, 0x70, 0X6D, 0X6B, 0X68, 0X67, 0X64, 0X62,
+ 0X5E, 0X5B, 0X58, 0X57, 0X54, 0X52, 0X4F, 0X4A,
+ 0x34, 0x31, 0X2C, 0X2A, 0X29, 0X26, 0X25, 0X23,
+ 0X1C, 0X1A, 0X19, 0X16, 0X15, 0X13, 0X0E, 0X0B,
+ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01
+};
+
+#define ECC_START_ADDR 0x10
+#define ECC_STOP_ADDR 0x2000
+#define ECC_PATTERN 0x01010101
+#define ECC_PATTERN_CORR 0x11010101
+#define ECC_PATTERN_UNCORR 0xF1010101
+
+static int test_ecc_error(void)
+{
+ unsigned long value;
+ unsigned long hdata, ldata, haddr, laddr;
+ unsigned int bit;
+
+ int ret = 0;
+
+ mfsdram(DDR0_23, value);
+
+ for (bit = 0; bit < sizeof(syndrome_codes); bit++)
+ if (syndrome_codes[bit] == ((value >> 16) & 0xff))
+ break;
+
+ mfsdram(DDR0_00, value);
+
+ if (value & DDR0_00_INT_STATUS_BIT0) {
+ debug("Bit0. A single access outside the defined PHYSICAL"
+ " memory space detected\n");
+ mfsdram(DDR0_32, laddr);
+ mfsdram(DDR0_33, haddr);
+ debug(" addr = 0x%08x%08x\n", haddr, laddr);
+ ret = 1;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT1) {
+ debug("Bit1. Multiple accesses outside the defined PHYSICAL"
+ " memory space detected\n");
+ ret = 2;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT2) {
+ debug("Bit2. Single correctable ECC event detected\n");
+ mfsdram(DDR0_38, laddr);
+ mfsdram(DDR0_39, haddr);
+ mfsdram(DDR0_40, ldata);
+ mfsdram(DDR0_41, hdata);
+ debug(" 0x%08x - 0x%08x%08x, bit - %d\n",
+ laddr, hdata, ldata, bit);
+ ret = 3;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT3) {
+ debug("Bit3. Multiple correctable ECC events detected\n");
+ mfsdram(DDR0_38, laddr);
+ mfsdram(DDR0_39, haddr);
+ mfsdram(DDR0_40, ldata);
+ mfsdram(DDR0_41, hdata);
+ debug(" 0x%08x - 0x%08x%08x, bit - %d\n",
+ laddr, hdata, ldata, bit);
+ ret = 4;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT4) {
+ debug("Bit4. Single uncorrectable ECC event detected\n");
+ mfsdram(DDR0_34, laddr);
+ mfsdram(DDR0_35, haddr);
+ mfsdram(DDR0_36, ldata);
+ mfsdram(DDR0_37, hdata);
+ debug(" 0x%08x - 0x%08x%08x, bit - %d\n",
+ laddr, hdata, ldata, bit);
+ ret = 5;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT5) {
+ debug("Bit5. Multiple uncorrectable ECC events detected\n");
+ mfsdram(DDR0_34, laddr);
+ mfsdram(DDR0_35, haddr);
+ mfsdram(DDR0_36, ldata);
+ mfsdram(DDR0_37, hdata);
+ debug(" 0x%08x - 0x%08x%08x, bit - %d\n",
+ laddr, hdata, ldata, bit);
+ ret = 6;
+ }
+ if (value & DDR0_00_INT_STATUS_BIT6) {
+ debug("Bit6. DRAM initialization complete\n");
+ ret = 7;
+ }
+
+ /* error status cleared */
+ mfsdram(DDR0_00, value);
+ mtsdram(DDR0_00, value | DDR0_00_INT_ACK_ALL);
+
+ return ret;
+}
+
+static int test_ecc(unsigned long ecc_addr)
+{
+ unsigned long value;
+ volatile unsigned *const ecc_mem = (volatile unsigned *) ecc_addr;
+ int pret;
+ int ret = 0;
+
+ sync();
+ eieio();
+ WATCHDOG_RESET();
+
+ debug("Entering test_ecc(0x%08lX)\n", ecc_addr);
+ out_be32(ecc_mem, ECC_PATTERN);
+ out_be32(ecc_mem + 1, ECC_PATTERN);
+ in_be32(ecc_mem);
+ pret = test_ecc_error();
+ if (pret != 0) {
+ debug("pret: expected 0, got %d\n", pret);
+ ret = 1;
+ }
+ /* test for correctable error */
+ /* disconnect from ecc storage */
+ mfsdram(DDR0_22, value);
+ mtsdram(DDR0_22, (value & ~DDR0_22_CTRL_RAW_MASK)
+ | DDR0_22_CTRL_RAW_ECC_DISABLE);
+
+ /* creating (correctable) single-bit error */
+ out_be32(ecc_mem, ECC_PATTERN_CORR);
+
+ /* enable ecc */
+ mfsdram(DDR0_22, value);
+ mtsdram(DDR0_22, (value & ~DDR0_22_CTRL_RAW_MASK)
+ | DDR0_22_CTRL_RAW_ECC_ENABLE);
+ sync();
+ eieio();
+
+ in_be32(ecc_mem);
+ pret = test_ecc_error();
+ /* if read data ok, 1 correctable error must be fixed */
+ if (pret != 3) {
+ debug("pret: expected 3, got %d\n", pret);
+ ret = 1;
+ }
+ /* test for uncorrectable error */
+ /* disconnect from ecc storage */
+ mfsdram(DDR0_22, value);
+ mtsdram(DDR0_22, (value & ~DDR0_22_CTRL_RAW_MASK)
+ | DDR0_22_CTRL_RAW_NO_ECC_RAM);
+
+ /* creating (uncorrectable) multiple-bit error */
+ out_be32(ecc_mem, ECC_PATTERN_UNCORR);
+
+ /* enable ecc */
+ mfsdram(DDR0_22, value);
+ mtsdram(DDR0_22, (value & ~DDR0_22_CTRL_RAW_MASK)
+ | DDR0_22_CTRL_RAW_ECC_ENABLE);
+ sync();
+ eieio();
+
+ in_be32(ecc_mem);
+ pret = test_ecc_error();
+ /* info about uncorrectable error must appear */
+ if (pret != 5) {
+ debug("pret: expected 5, got %d\n", pret);
+ ret = 1;
+ }
+ /* remove error from SDRAM */
+ out_be32(ecc_mem, ECC_PATTERN);
+ /* clear error caused by read-modify-write */
+ mfsdram(DDR0_00, value);
+ mtsdram(DDR0_00, value | DDR0_00_INT_ACK_ALL);
+
+ sync();
+ eieio();
+ return ret;
+}
+
+int ecc_post_test (int flags)
+{
+ int ret = 0;
+ unsigned long value;
+ unsigned long iaddr;
+
+ sync();
+ eieio();
+
+ mfsdram(DDR0_22, value);
+ if (0x3 != DDR0_22_CTRL_RAW_DECODE(value)) {
+ debug("SDRAM ECC not enabled, skipping ECC POST.\n");
+ return 0;
+ }
+
+ /* mask all int */
+ mfsdram(DDR0_01, value);
+ mtsdram(DDR0_01, (value & ~DDR0_01_INT_MASK_MASK)
+ | DDR0_01_INT_MASK_ALL_OFF);
+
+ /* clear error status */
+ mfsdram(DDR0_00, value);
+ mtsdram(DDR0_00, value | DDR0_00_INT_ACK_ALL);
+
+ for (iaddr = ECC_START_ADDR; iaddr <= ECC_STOP_ADDR; iaddr += iaddr) {
+ ret = test_ecc(iaddr);
+ if (ret)
+ break;
+ }
+ /*
+ * Clear possible errors resulting from ECC testing.
+ * If not done, then we could get an interrupt later on when
+ * exceptions are enabled.
+ */
+ set_mcsr(get_mcsr());
+ return ret;
+
+}
+#endif /* CONFIG_POST & CFG_POST_ECC */
+#endif /* defined(CONFIG_POST) && ... */
diff --git a/post/cpu/ppc4xx/ether.c b/post/cpu/ppc4xx/ether.c
index 09f9a5f..4ac7491 100644
--- a/post/cpu/ppc4xx/ether.c
+++ b/post/cpu/ppc4xx/ether.c
@@ -117,11 +117,11 @@ static void ether_post_init (int devnum, int hw_addr)
sync ();
#endif
/* reset emac */
- out32 (EMAC_M0 + hw_addr, EMAC_M0_SRST);
+ out_be32 ((void*)(EMAC_M0 + hw_addr), EMAC_M0_SRST);
sync ();
for (i = 0;; i++) {
- if (!(in32 (EMAC_M0 + hw_addr) & EMAC_M0_SRST))
+ if (!(in_be32 ((void*)(EMAC_M0 + hw_addr)) & EMAC_M0_SRST))
break;
if (i >= 1000) {
printf ("Timeout resetting EMAC\n");
@@ -144,7 +144,7 @@ static void ether_post_init (int devnum, int hw_addr)
else
mode_reg |= EMAC_M1_OBCI_GT100;
- out32 (EMAC_M1 + hw_addr, mode_reg);
+ out_be32 ((void*)(EMAC_M1 + hw_addr), mode_reg);
#endif /* defined(CONFIG_440GX) || defined(CONFIG_440SP) */
@@ -212,40 +212,40 @@ static void ether_post_init (int devnum, int hw_addr)
/* set internal loopback mode */
#ifdef CFG_POST_ETHER_EXT_LOOPBACK
- out32 (EMAC_M1 + hw_addr, EMAC_M1_FDE | 0 |
- EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
- EMAC_M1_MF_100MBPS | EMAC_M1_IST |
- in32 (EMAC_M1));
+ out_be32 ((void*)(EMAC_M1 + hw_addr), EMAC_M1_FDE | 0 |
+ EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
+ EMAC_M1_MF_100MBPS | EMAC_M1_IST |
+ in_be32 ((void*)(EMAC_M1 + hw_addr)));
#else
- out32 (EMAC_M1 + hw_addr, EMAC_M1_FDE | EMAC_M1_ILE |
- EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
- EMAC_M1_MF_100MBPS | EMAC_M1_IST |
- in32 (EMAC_M1));
+ out_be32 ((void*)(EMAC_M1 + hw_addr), EMAC_M1_FDE | EMAC_M1_ILE |
+ EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
+ EMAC_M1_MF_100MBPS | EMAC_M1_IST |
+ in_be32 ((void*)(EMAC_M1 + hw_addr)));
#endif
/* set transmit enable & receive enable */
- out32 (EMAC_M0 + hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
+ out_be32 ((void*)(EMAC_M0 + hw_addr), EMAC_M0_TXE | EMAC_M0_RXE);
/* enable broadcast address */
- out32 (EMAC_RXM + hw_addr, EMAC_RMR_BAE);
+ out_be32 ((void*)(EMAC_RXM + hw_addr), EMAC_RMR_BAE);
/* set transmit request threshold register */
- out32 (EMAC_TRTR + hw_addr, 0x18000000); /* 256 byte threshold */
+ out_be32 ((void*)(EMAC_TRTR + hw_addr), 0x18000000); /* 256 byte threshold */
/* set receive low/high water mark register */
#if defined(CONFIG_440)
/* 440s has a 64 byte burst length */
- out32 (EMAC_RX_HI_LO_WMARK + hw_addr, 0x80009000);
+ out_be32 ((void*)(EMAC_RX_HI_LO_WMARK + hw_addr), 0x80009000);
#else
/* 405s have a 16 byte burst length */
- out32 (EMAC_RX_HI_LO_WMARK + hw_addr, 0x0f002000);
+ out_be32 ((void*)(EMAC_RX_HI_LO_WMARK + hw_addr), 0x0f002000);
#endif /* defined(CONFIG_440) */
- out32 (EMAC_TXM1 + hw_addr, 0xf8640000);
+ out_be32 ((void*)(EMAC_TXM1 + hw_addr), 0xf8640000);
/* Set fifo limit entry in tx mode 0 */
- out32 (EMAC_TXM0 + hw_addr, 0x00000003);
+ out_be32 ((void*)(EMAC_TXM0 + hw_addr), 0x00000003);
/* Frame gap set */
- out32 (EMAC_I_FRAME_GAP_REG + hw_addr, 0x00000008);
+ out_be32 ((void*)(EMAC_I_FRAME_GAP_REG + hw_addr), 0x00000008);
sync ();
}
@@ -272,7 +272,7 @@ static void ether_post_halt (int devnum, int hw_addr)
udelay (1000);
}
/* emac reset */
- out32 (EMAC_M0 + hw_addr, EMAC_M0_SRST);
+ out_be32 ((void*)(EMAC_M0 + hw_addr), EMAC_M0_SRST);
#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
/* remove clocks for EMAC internal loopback */
@@ -302,7 +302,7 @@ static void ether_post_send (int devnum, int hw_addr, void *packet, int length)
flush_dcache_range((u32)tx.data_ptr, (u32)tx.data_ptr + length);
sync ();
- out32 (EMAC_TXM0 + hw_addr, in32 (EMAC_TXM0 + hw_addr) | EMAC_TXM0_GNP0);
+ out_be32 ((void*)(EMAC_TXM0 + hw_addr), in_be32 ((void*)(EMAC_TXM0 + hw_addr)) | EMAC_TXM0_GNP0);
sync ();
}
generated by cgit v1.1 at 2024-12-20 11:42:25 +0000