+++ /dev/null
-/*
- * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
- *
- * Developed for DENX Software Engineering GmbH
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#include <common.h>
-
-/* This test attempts to verify board GDC. A scratch register tested, then
- * simple memory test (get_ram_size()) run over GDC memory.
- */
-
-#include <post.h>
-#include <watchdog.h>
-#include <asm/io.h>
-#include <video.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define GDC_SCRATCH_REG 0xC1FF8044
-#define GDC_VERSION_REG 0xC1FF8084
-#define GDC_HOST_BASE 0xC1FC0000
-#define GDC_RAM_START 0xC0000000
-#define GDC_RAM_END (GDC_HOST_BASE - 1)
-#define GDC_RAM_SIZE (GDC_RAM_END - GDC_RAM_START)
-
-#if CONFIG_POST & CONFIG_SYS_POST_BSPEC4
-
-const static unsigned long pattern[] = {
- 0xffffffff,
- 0xaaaaaaaa,
- 0xcccccccc,
- 0xf0f0f0f0,
- 0xff00ff00,
- 0xffff0000,
- 0x0000ffff,
- 0x00ff00ff,
- 0x0f0f0f0f,
- 0x33333333,
- 0x55555555,
- 0x00000000
-};
-
-const static unsigned long otherpattern = 0x01234567;
-
-/* test write/read og a given LIME Register */
-static int gdc_test_reg_one(uint value)
-{
- uint read_value;
-
- /* write test pattern */
- out_be32((void *)GDC_SCRATCH_REG, value);
- /* read other location (protect against data lines capacity) */
- in_be32((void *)GDC_RAM_START);
- /* verify test pattern */
- read_value = in_be32((void *)GDC_SCRATCH_REG);
- if (read_value != value) {
- post_log("GDC SCRATCH test failed write %08X, read %08X\n",
- value, read_value);
- }
-
- return (read_value != value);
-}
-
-/* test with a given static 32 bit pattern in a given memory addressrange */
-static int gdc_post_test1(ulong *start, ulong size, ulong val)
-{
- int ret = 0;
- ulong i = 0;
- ulong *mem = start;
- ulong readback;
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- mem[i] = val;
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- readback = mem[i];
- if (readback != val) {
- post_log("GDC Memory error at %08x, "
- "wrote %08x, read %08x !\n",
- mem + i, val, readback);
- ret = -1;
- break;
- }
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- return ret;
-}
-
-/* test with dynamic 32 bit pattern in a given memory addressrange */
-static int gdc_post_test2(ulong *start, ulong size)
-{
- int ret = 0;
- ulong i = 0;
- ulong *mem = start;
- ulong readback;
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- mem[i] = 1 << (i % 32);
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- readback = mem[i];
- if (readback != 1 << (i % 32)) {
- post_log("GDC Memory error at %08x, "
- "wrote %08x, read %08x !\n",
- mem + i, 1 << (i % 32), readback);
- ret = -1;
- break;
- }
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- return ret;
-}
-
-/* test with dynamic 32 bit pattern in a given memory addressrange */
-static int gdc_post_test3(ulong *start, ulong size)
-{
- int ret = 0;
- ulong i = 0;
- ulong *mem = start;
- ulong readback;
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- mem[i] = i;
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- readback = mem[i];
- if (readback != i) {
- post_log("GDC Memory error at %08x, "
- "wrote %08x, read %08x !\n",
- mem + i, i, readback);
- ret = -1;
- break;
- }
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- return ret;
-}
-
-/* test with dynamic 32 bit pattern in a given memory addressrange */
-static int gdc_post_test4(ulong *start, ulong size)
-{
- int ret = 0;
- ulong i = 0;
- ulong *mem = start;
- ulong readback;
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- mem[i] = ~i;
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- for (i = 0; i < size / sizeof(ulong); i++) {
- readback = mem[i];
- if (readback != ~i) {
- post_log("GDC Memory error at %08x, "
- "wrote %08x, read %08x !\n",
- mem + i, ~i, readback);
- ret = -1;
- break;
- }
- if (i % 1024 == 0)
- WATCHDOG_RESET();
- }
-
- return ret;
-}
-
-/* do some patterntests in a given addressrange */
-int gdc_mem_test(ulong *start, ulong size)
-{
- int ret = 0;
-
- /*
- * check addressrange and do different static and dynamic
- * pattern tests with it.
- */
- if (((void *)start) + size <= (void *)GDC_RAM_END) {
- if (ret == 0)
- ret = gdc_post_test1(start, size, 0x00000000);
-
- if (ret == 0)
- ret = gdc_post_test1(start, size, 0xffffffff);
-
- if (ret == 0)
- ret = gdc_post_test1(start, size, 0x55555555);
-
- if (ret == 0)
- ret = gdc_post_test1(start, size, 0xaaaaaaaa);
-
- if (ret == 0)
- ret = gdc_post_test2(start, size);
-
- if (ret == 0)
- ret = gdc_post_test3(start, size);
-
- if (ret == 0)
- ret = gdc_post_test4(start, size);
- }
-
- return ret;
-}
-
-/* test function of gdc memory addresslines*/
-static int gdc_post_addrline(ulong *address, ulong *base, ulong size)
-{
- ulong *target;
- ulong *end;
- ulong readback = 0;
- ulong xor = 0;
- int ret = 0;
-
- end = (ulong *)((ulong)base + size);
-
- for (xor = sizeof(long); xor > 0; xor <<= 1) {
- target = (ulong *)((ulong)address ^ xor);
- if ((target >= base) && (target < end)) {
- *address = ~*target;
- readback = *target;
- }
-
- if (readback == *address) {
- post_log("GDC Memory (address line) error at %08x"
- "XOR value %08x !\n",
- address, target , xor);
- ret = -1;
- break;
- }
- }
-
- return ret;
-}
-
-static int gdc_post_dataline(ulong *address)
-{
- unsigned long temp32 = 0;
- int i = 0;
- int ret = 0;
-
- for (i = 0; i < ARRAY_SIZE(pattern); i++) {
- *address = pattern[i];
- /*
- * Put a different pattern on the data lines: otherwise they
- * may float long enough to read back what we wrote.
- */
- *(address + 1) = otherpattern;
- temp32 = *address;
-
- if (temp32 != pattern[i]){
- post_log("GDC Memory (date line) error at %08x, "
- "wrote %08x, read %08x !\n",
- address, pattern[i], temp32);
- ret = 1;
- }
- }
-
- return ret;
-}
-
-/* Verify GDC, get memory size, verify GDC memory */
-int gdc_post_test(int flags)
-{
- uint old_value;
- int i = 0;
- int ret = 0;
-
- post_log("\n");
- old_value = in_be32((void *)GDC_SCRATCH_REG);
-
- /*
- * GPIOC2 register behaviour: the LIME graphics processor has a
- * maximum of 5 GPIO ports that can be used in this hardware
- * configuration. Thus only the bits for these 5 GPIOs can be
- * activated in the GPIOC2 register. All other bits will always be
- * read as zero.
- */
- if (gdc_test_reg_one(0x00150015))
- ret = 1;
- if (gdc_test_reg_one(0x000A000A))
- ret = 1;
-
- out_be32((void *)GDC_SCRATCH_REG, old_value);
-
- old_value = in_be32((void *)GDC_VERSION_REG);
- post_log("GDC chip version %u.%u, year %04X\n",
- (old_value >> 8) & 0xFF, old_value & 0xFF,
- (old_value >> 16) & 0xFFFF);
-
- old_value = get_ram_size((void *)GDC_RAM_START,
- 0x02000000);
-
- debug("GDC RAM size (ist): %d bytes\n", old_value);
- debug("GDC RAM size (soll): %d bytes\n", GDC_RAM_SIZE);
- post_log("GDC RAM size: %d bytes\n", old_value);
-
- /* Test SDRAM datalines */
- if (gdc_post_dataline((ulong *)GDC_RAM_START)) {
- ret = 1;
- goto out;
- }
- WATCHDOG_RESET();
-
- /* Test SDRAM adresslines */
- if (gdc_post_addrline((ulong *)GDC_RAM_START,
- (ulong *)GDC_RAM_START, GDC_RAM_SIZE)) {
- ret = 1;
- goto out;
- }
- WATCHDOG_RESET();
- if (gdc_post_addrline((ulong *)GDC_RAM_END - sizeof(long),
- (ulong *)GDC_RAM_START, GDC_RAM_SIZE)) {
- ret = 1;
- goto out;
- }
- WATCHDOG_RESET();
-
- /* memory pattern test */
- debug("GDC Memory test (flags %8x:%8x)\n", flags,
- POST_SLOWTEST | POST_MANUAL);
-
- if (flags & POST_MANUAL) {
- debug("Full memory test\n");
- if (gdc_mem_test((ulong *)GDC_RAM_START, GDC_RAM_SIZE)) {
- ret = 1;
- goto out;
- }
- /* load splashscreen again */
- } else {
- debug("smart memory test\n");
- for (i = 0; i < (GDC_RAM_SIZE >> 20) && ret == 0; i++) {
- if (ret == 0)
- ret = gdc_mem_test((ulong *)(GDC_RAM_START +
- (i << 20)),
- 0x800);
- if (ret == 0)
- ret = gdc_mem_test((ulong *)(GDC_RAM_START +
- (i << 20) + 0xff800),
- 0x800);
- }
- }
- WATCHDOG_RESET();
-
-out:
- return ret;
-}
-#endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC4 */
projects / oweals / u-boot.git / blobdiff