[PATCH qemu 16/38] aspeed/smc: add tests for Command mode
Cédric Le Goater
clg at kaod.org
Sat Nov 19 01:21:56 AEDT 2016
0005 tests add a read_page_mem test
Signed-off-by: Cédric Le Goater <clg at kaod.org>
---
tests/m25p80-test.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 86 insertions(+)
diff --git a/tests/m25p80-test.c b/tests/m25p80-test.c
index cb7ec81f1a6d..3d449bd194a9 100644
--- a/tests/m25p80-test.c
+++ b/tests/m25p80-test.c
@@ -36,6 +36,9 @@
#define CRTL_EXTENDED0 0 /* 32 bit addressing for SPI */
#define R_CTRL0 0x10
#define CTRL_CE_STOP_ACTIVE (1 << 2)
+#define CTRL_READMODE 0x0
+#define CTRL_FREADMODE 0x1
+#define CTRL_WRITEMODE 0x2
#define CTRL_USERMODE 0x3
#define ASPEED_FMC_BASE 0x1E620000
@@ -76,6 +79,22 @@ static void spi_conf(uint32_t value)
writel(ASPEED_FMC_BASE + R_CONF, conf);
}
+static void spi_ce_ctrl(uint32_t value)
+{
+ uint32_t conf = readl(ASPEED_FMC_BASE + R_CE_CTRL);
+
+ conf |= value;
+ writel(ASPEED_FMC_BASE + R_CE_CTRL, conf);
+}
+
+static void spi_ctrl_setmode(uint8_t mode, uint8_t cmd)
+{
+ uint32_t ctrl = readl(ASPEED_FMC_BASE + R_CTRL0);
+ ctrl &= ~(CTRL_USERMODE | 0xff << 16);
+ ctrl |= mode | (cmd << 16);
+ writel(ASPEED_FMC_BASE + R_CTRL0, ctrl);
+}
+
static void spi_ctrl_start_user(void)
{
uint32_t ctrl = readl(ASPEED_FMC_BASE + R_CTRL0);
@@ -128,6 +147,18 @@ static void read_page(uint32_t addr, uint32_t *page)
spi_ctrl_stop_user();
}
+static void read_page_mem(uint32_t addr, uint32_t *page)
+{
+ int i;
+
+ /* move out USER mode to use direct reads from the AHB bus */
+ spi_ctrl_setmode(CTRL_READMODE, READ);
+
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ page[i] = make_be32(readl(ASPEED_FLASH_BASE + addr + i * 4));
+ }
+}
+
static void test_erase_sector(void)
{
uint32_t some_page_addr = 0x600 * PAGE_SIZE;
@@ -195,6 +226,7 @@ static void test_write_page(void)
spi_ctrl_start_user();
writeb(ASPEED_FLASH_BASE, EN_4BYTE_ADDR);
+ writeb(ASPEED_FLASH_BASE, WREN);
writeb(ASPEED_FLASH_BASE, PP);
writel(ASPEED_FLASH_BASE, make_be32(my_page_addr));
@@ -217,6 +249,58 @@ static void test_write_page(void)
}
}
+static void test_read_page_mem(void)
+{
+ uint32_t my_page_addr = 0x14000 * PAGE_SIZE; /* beyond 16MB */
+ uint32_t some_page_addr = 0x15000 * PAGE_SIZE;
+ uint32_t page[PAGE_SIZE / 4];
+ int i;
+
+ /* Enable 4BYTE mode for flash. This is should be strapped by HW
+ * for CE0 anyhow.
+ */
+ spi_ce_ctrl(1 << CRTL_EXTENDED0);
+
+ /* Check what was written */
+ read_page_mem(my_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, my_page_addr + i * 4);
+ }
+
+ /* Check some other page. It should be full of 0xff */
+ read_page_mem(some_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0xffffffff);
+ }
+}
+
+static void test_write_page_mem(void)
+{
+ uint32_t my_page_addr = 0x15000 * PAGE_SIZE;
+ uint32_t page[PAGE_SIZE / 4];
+ int i;
+
+ /* Enable 4BYTE mode for flash. This is should be strapped by HW
+ * for CE0 anyhow.
+ */
+ spi_ce_ctrl(1 << CRTL_EXTENDED0);
+
+ /* move out USER mode to use direct writes to the AHB bus */
+ spi_ctrl_setmode(CTRL_WRITEMODE, PP);
+
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ writel(ASPEED_FLASH_BASE + my_page_addr + i * 4,
+ make_be32(my_page_addr + i * 4));
+ }
+
+ /* Check what was written */
+ read_page_mem(my_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, my_page_addr + i * 4);
+ }
+}
+
+
static char tmp_path[] = "/tmp/qtest.m25p80.XXXXXX";
int main(int argc, char **argv)
@@ -242,6 +326,8 @@ int main(int argc, char **argv)
qtest_add_func("/m25p80/erase_sector", test_erase_sector);
qtest_add_func("/m25p80/erase_all", test_erase_all);
qtest_add_func("/m25p80/write_page", test_write_page);
+ qtest_add_func("/m25p80/read_page_mem", test_read_page_mem);
+ qtest_add_func("/m25p80/write_page_mem", test_write_page_mem);
ret = g_test_run();
--
2.7.4
More information about the openbmc
mailing list