stm32mp1: ram: fix address issue in 2 tests

If user choose to test memory size is 1GByte (0x40000000),
memory address would overflow in test "Random" and
test "FrequencySelectivePattern".
Thus the system would hangs up when running DDR test.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Bossen WU <bossen.wu@st.com>

diff --git a/drivers/ram/stm32mp1/stm32mp1_tests.c b/drivers/ram/stm32mp1/stm32mp1_tests.c
index b6fb2a9c587b3cb2d910645618d97a3735e9800d..691c63c3ae0993d47331a6a714f8301b0546d833 100644 (file)
--- a/drivers/ram/stm32mp1/stm32mp1_tests.c
+++ b/drivers/ram/stm32mp1/stm32mp1_tests.c
@@ -578,27 +578,29 @@ static enum test_result test_random(struct stm32mp1_ddrctl *ctl,
        u32 error = 0;
        unsigned int seed;
 
-       if (get_bufsize(string, argc, argv, 0, &bufsize, 4 * 1024))
+       if (get_bufsize(string, argc, argv, 0, &bufsize, 8 * 1024))
                return TEST_ERROR;
        if (get_nb_loop(string, argc, argv, 1, &nb_loop, 1))
                return TEST_ERROR;
        if (get_addr(string, argc, argv, 2, &addr))
                return TEST_ERROR;
 
-       printf("running %d loops at 0x%x\n", nb_loop, addr);
+       bufsize /= 2;
+       printf("running %d loops copy from 0x%x to 0x%x (buffer size=0x%x)\n",
+              nb_loop, addr, addr + bufsize, bufsize);
        while (!error) {
                seed = rand();
-               for (offset = addr; offset < addr + bufsize; offset += 4)
-                       writel(rand(), offset);
+               for (offset = 0; offset < bufsize; offset += 4)
+                       writel(rand(), addr + offset);
 
                memcpy((void *)addr + bufsize, (void *)addr, bufsize);
 
                srand(seed);
-               for (offset = addr; offset < addr + 2 * bufsize; offset += 4) {
-                       if (offset == (addr + bufsize))
+               for (offset = 0; offset < 2 * bufsize; offset += 4) {
+                       if (offset == bufsize)
                                srand(seed);
                        value = rand();
-                       error = check_addr(offset, value);
+                       error = check_addr(addr + offset, value);
                        if (error)
                                break;
                        if (progress(offset))
@@ -607,6 +609,7 @@ static enum test_result test_random(struct stm32mp1_ddrctl *ctl,
                if (test_loop_end(&loop, nb_loop, 100))
                        break;
        }
+       putc('\n');
 
        if (error) {
                sprintf(string,
@@ -791,9 +794,9 @@ static enum test_result test_loop(const u32 *pattern, u32 *address,
        int i;
        int j;
        enum test_result res = TEST_PASSED;
-       u32 *offset, testsize, remaining;
+       u32 offset, testsize, remaining;
 
-       offset = address;
+       offset = (u32)address;
        remaining = bufsize;
        while (remaining) {
                testsize = bufsize > 0x1000000 ? 0x1000000 : bufsize;
@@ -809,7 +812,7 @@ static enum test_result test_loop(const u32 *pattern, u32 *address,
                __asm__("stmia r1!, {R3-R10}");
                __asm__("stmia r1!, {R3-R10}");
                __asm__("stmia r1!, {R3-R10}");
-               __asm__("subs r2, r2, #8");
+               __asm__("subs r2, r2, #128");
                __asm__("bge loop2");
                __asm__("pop {R0-R10}");
 
@@ -1388,7 +1391,7 @@ const struct test_desc test[] = {
         "Verifies r/w and memcopy(burst for pseudo random value.",
         3
        },
-       {test_freq_pattern, "FrequencySelectivePattern ", "[size]",
+       {test_freq_pattern, "FrequencySelectivePattern", "[size]",
         "write & test patterns: Mostly Zero, Mostly One and F/n",
         1
        },