+++ /dev/null
-/*
- * (C) Copyright 2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * The test exercises SDRAM accesses in burst mode
- */
-
-#include <common.h>
-#include <exports.h>
-
-#include <commproc.h>
-#include <asm/mmu.h>
-#include <asm/processor.h>
-
-#include <serial.h>
-#include <watchdog.h>
-
-#include "test_burst.h"
-
-/* 8 MB test region of physical RAM */
-#define TEST_PADDR 0x00800000
-/* The uncached virtual region */
-#define TEST_VADDR_NC 0x00800000
-/* The cached virtual region */
-#define TEST_VADDR_C 0x01000000
-/* When an error is detected, the address where the error has been found,
- and also the current and the expected data will be written to
- the following flash address
-*/
-#define TEST_FLASH_ADDR 0x40100000
-
-static void test_prepare (void);
-static int test_burst_start (unsigned long size, unsigned long pattern);
-static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached);
-static int test_mmu_is_on(void);
-static void test_desc(unsigned long size);
-static void test_error(char * step, volatile void * addr, unsigned long val, unsigned long pattern);
-static void signal_init(void);
-static void signal_start(void);
-static void signal_error(void);
-static void test_usage(void);
-
-static unsigned long test_pattern [] = {
- 0x00000000,
- 0xffffffff,
- 0x55555555,
- 0xaaaaaaaa,
-};
-
-
-int test_burst (int argc, char * const argv[])
-{
- unsigned long size = CACHE_LINE_SIZE;
- unsigned int pass = 0;
- int res = 0;
- int i, j;
-
- if (argc == 3) {
- char * d;
- for (size = 0, d = argv[1]; *d >= '0' && *d <= '9'; d++) {
- size *= 10;
- size += *d - '0';
- }
- if (size == 0 || *d) {
- test_usage();
- return 1;
- }
- for (d = argv[2]; *d >= '0' && *d <= '9'; d++) {
- pass *= 10;
- pass += *d - '0';
- }
- if (*d) {
- test_usage();
- return 1;
- }
- } else if (argc > 3) {
- test_usage();
- return 1;
- }
-
- size += (CACHE_LINE_SIZE - 1);
- size &= ~(CACHE_LINE_SIZE - 1);
-
- if (!test_mmu_is_on()) {
- test_prepare();
- }
-
- test_desc(size);
-
- for (j = 0; !pass || j < pass; j++) {
- for (i = 0; i < sizeof(test_pattern) / sizeof(test_pattern[0]);
- i++) {
- res = test_burst_start(size, test_pattern[i]);
- if (res != 0) {
- goto Done;
- }
- }
-
- printf ("Iteration #%d passed\n", j + 1);
-
- if (tstc() && 0x03 == getc())
- break;
- }
-Done:
- return res;
-}
-
-static void test_prepare (void)
-{
- printf ("\n");
-
- caches_init();
- disable_interrupts();
- mmu_init();
-
- printf ("Interrupts are disabled\n");
- printf ("I-Cache is ON\n");
- printf ("D-Cache is ON\n");
- printf ("MMU is ON\n");
-
- printf ("\n");
-
- test_map_8M (TEST_PADDR, TEST_VADDR_NC, 0);
- test_map_8M (TEST_PADDR, TEST_VADDR_C, 1);
-
- test_map_8M (TEST_FLASH_ADDR & 0xFF800000, TEST_FLASH_ADDR & 0xFF800000, 0);
-
- /* Configure GPIO ports */
- signal_init();
-}
-
-static int test_burst_start (unsigned long size, unsigned long pattern)
-{
- volatile unsigned long * vaddr_c = (unsigned long *)TEST_VADDR_C;
- volatile unsigned long * vaddr_nc = (unsigned long *)TEST_VADDR_NC;
- int i, n;
- int res = 1;
-
- printf ("Test pattern %08lx ...", pattern);
-
- n = size / 4;
-
- for (i = 0; i < n; i ++) {
- vaddr_c [i] = pattern;
- }
- signal_start();
- flush_dcache_range((unsigned long)vaddr_c, (unsigned long)(vaddr_c + n) - 1);
-
- for (i = 0; i < n; i ++) {
- register unsigned long tmp = vaddr_nc [i];
- if (tmp != pattern) {
- test_error("2a", vaddr_nc + i, tmp, pattern);
- goto Done;
- }
- }
-
- for (i = 0; i < n; i ++) {
- register unsigned long tmp = vaddr_c [i];
- if (tmp != pattern) {
- test_error("2b", vaddr_c + i, tmp, pattern);
- goto Done;
- }
- }
-
- for (i = 0; i < n; i ++) {
- vaddr_nc [i] = pattern;
- }
-
- for (i = 0; i < n; i ++) {
- register unsigned long tmp = vaddr_nc [i];
- if (tmp != pattern) {
- test_error("3a", vaddr_nc + i, tmp, pattern);
- goto Done;
- }
- }
-
- signal_start();
- for (i = 0; i < n; i ++) {
- register unsigned long tmp = vaddr_c [i];
- if (tmp != pattern) {
- test_error("3b", vaddr_c + i, tmp, pattern);
- goto Done;
- }
- }
-
- res = 0;
-Done:
- printf(" %s\n", res == 0 ? "OK" : "");
-
- return res;
-}
-
-static void test_map_8M (unsigned long paddr, unsigned long vaddr, int cached)
-{
- mtspr (MD_EPN, (vaddr & 0xFFFFFC00) | MI_EVALID);
- mtspr (MD_TWC, MI_PS8MEG | MI_SVALID);
- mtspr (MD_RPN, (paddr & 0xFFFFF000) | MI_BOOTINIT | (cached ? 0 : 2));
- mtspr (MD_AP, MI_Kp);
-}
-
-static int test_mmu_is_on(void)
-{
- unsigned long msr;
-
- asm volatile("mfmsr %0" : "=r" (msr) :);
-
- return msr & MSR_DR;
-}
-
-static void test_desc(unsigned long size)
-{
- printf(
- "The following tests will be conducted:\n"
- "1) Map %ld-byte region of physical RAM at 0x%08x\n"
- " into two virtual regions:\n"
- " one cached at 0x%08x and\n"
- " the the other uncached at 0x%08x.\n",
- size, TEST_PADDR, TEST_VADDR_NC, TEST_VADDR_C);
-
- puts(
- "2) Fill the cached region with a pattern, and flush the cache\n"
- "2a) Check the uncached region to match the pattern\n"
- "2b) Check the cached region to match the pattern\n"
- "3) Fill the uncached region with a pattern\n"
- "3a) Check the cached region to match the pattern\n"
- "3b) Check the uncached region to match the pattern\n"
- "2b) Change the patterns and go to step 2\n"
- "\n"
- );
-}
-
-static void test_error(
- char * step, volatile void * addr, unsigned long val, unsigned long pattern)
-{
- volatile unsigned long * p = (void *)TEST_FLASH_ADDR;
-
- signal_error();
-
- p[0] = (unsigned long)addr;
- p[1] = val;
- p[2] = pattern;
-
- printf ("\nError at step %s, addr %08lx: read %08lx, pattern %08lx",
- step, (unsigned long)addr, val, pattern);
-}
-
-static void signal_init(void)
-{
-#if defined(GPIO1_INIT)
- GPIO1_INIT;
-#endif
-#if defined(GPIO2_INIT)
- GPIO2_INIT;
-#endif
-}
-
-static void signal_start(void)
-{
-#if defined(GPIO1_INIT)
- if (GPIO1_DAT & GPIO1_BIT) {
- GPIO1_DAT &= ~GPIO1_BIT;
- } else {
- GPIO1_DAT |= GPIO1_BIT;
- }
-#endif
-}
-
-static void signal_error(void)
-{
-#if defined(GPIO2_INIT)
- if (GPIO2_DAT & GPIO2_BIT) {
- GPIO2_DAT &= ~GPIO2_BIT;
- } else {
- GPIO2_DAT |= GPIO2_BIT;
- }
-#endif
-}
-
-static void test_usage(void)
-{
- printf("Usage: go 0x40004 [size] [count]\n");
-}
projects / oweals / u-boot.git / blobdiff