new file mode 100644
@@ -0,0 +1,209 @@
+/*
+ * QTests for NPCM7xx SD-3.0 / MMC-4.51 Host Controller
+ *
+ * Copyright (c) 2021 Google LLC
+ *
+ * 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.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sd/npcm7xx_sdhci.h"
+
+#include "libqos/libqtest.h"
+#include "libqtest-single.h"
+#include "libqos/sdhci-cmd.h"
+
+#define NPCM7XX_MMC_BA 0xF0842000
+#define NPCM7XX_BLK_SIZE 512
+#define NPCM7XX_TEST_IMAGE_SIZE (1 << 30)
+
+static char *sd_path;
+
+static QTestState *setup_sd_card(void)
+{
+ QTestState *qts = qtest_initf(
+ "-machine quanta-gbs-bmc "
+ "-device sd-card,drive=drive0 "
+ "-drive id=drive0,if=none,file=%s,format=raw,auto-read-only=off",
+ sd_path);
+
+ qtest_writew(qts, NPCM7XX_MMC_BA + SDHC_SWRST, SDHC_RESET_ALL);
+ qtest_writew(qts, NPCM7XX_MMC_BA + SDHC_CLKCON,
+ SDHC_CLOCK_SDCLK_EN | SDHC_CLOCK_INT_STABLE |
+ SDHC_CLOCK_INT_EN);
+ sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_APP_CMD);
+ sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x41200000, 0, (41 << 8));
+ sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_ALL_SEND_CID);
+ sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR);
+ sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x45670000, 0,
+ SDHC_SELECT_DESELECT_CARD);
+
+ return qts;
+}
+
+static void write_sdread(QTestState *qts, const char *msg)
+{
+ size_t len = strlen(msg);
+ char *rmsg = g_malloc(len);
+
+ /* write message to sd */
+ int fd = open(sd_path, O_WRONLY);
+ int ret;
+
+ g_assert(fd > 0);
+ ret = write(fd, msg, len);
+ g_assert(ret == len);
+ ret = close(fd);
+ g_assert(ret == 0);
+
+ /* read message using sdhci */
+ ret = sdhci_read_cmd(qts, NPCM7XX_MMC_BA, rmsg, len);
+ g_assert(ret == len);
+ g_assert(!strcmp(rmsg, msg));
+
+ free(rmsg);
+}
+
+/* Check MMC can read values from sd */
+static void test_read_sd(void)
+{
+ QTestState *qts = setup_sd_card();
+
+ write_sdread(qts, "hello world");
+ write_sdread(qts, "goodbye");
+
+ qtest_quit(qts);
+}
+
+static void sdwrite_read(QTestState *qts, const char *msg)
+{
+ size_t len = strlen(msg);
+ char *rmsg = g_malloc(len);
+
+ /* write message using sdhci */
+ sdhci_write_cmd(qts, NPCM7XX_MMC_BA, msg, len, NPCM7XX_BLK_SIZE);
+
+ /* read message from sd */
+ int fd = open(sd_path, O_RDONLY);
+ int ret;
+
+ g_assert(fd > 0);
+ ret = read(fd, rmsg, len);
+ g_assert(ret == len);
+ ret = close(fd);
+ g_assert(ret == 0);
+
+ g_assert(!strcmp(rmsg, msg));
+
+ free(rmsg);
+}
+
+/* Check MMC can write values to sd */
+static void test_write_sd(void)
+{
+ QTestState *qts = setup_sd_card();
+
+ sdwrite_read(qts, "hello world");
+ sdwrite_read(qts, "goodbye");
+
+ qtest_quit(qts);
+}
+
+/* Check SDHCI has correct default values. */
+static void test_reset(void)
+{
+ QTestState *qts = qtest_init("-machine quanta-gbs-bmc");
+
+ uint64_t addr = NPCM7XX_MMC_BA;
+ uint64_t end_addr = addr + 0x100;
+ uint16_t prstvals_resets[] = {NPCM7XX_PRSTVALS_0_RESET,
+ NPCM7XX_PRSTVALS_1_RESET,
+ 0,
+ NPCM7XX_PRSTVALS_3_RESET,
+ 0,
+ 0};
+ int i;
+ uint32_t mask;
+ while (addr < end_addr) {
+ switch (addr - NPCM7XX_MMC_BA) {
+ case SDHC_PRNSTS:
+ /* ignores bits 20 to 24: they are changed when reading registers */
+ mask = 0x1f00000;
+ g_assert_cmphex(qtest_readl(qts, addr) | mask, ==,
+ NPCM7XX_PRSNTS_RESET | mask);
+ addr += 4;
+ break;
+ case SDHC_BLKGAP:
+ g_assert_cmphex(qtest_readb(qts, addr), ==, NPCM7XX_BLKGAP_RESET);
+ addr += 1;
+ break;
+ case SDHC_CAPAB:
+ g_assert_cmphex(qtest_readq(qts, addr), ==, NPCM7XX_CAPAB_RESET);
+ addr += 8;
+ break;
+ case SDHC_MAXCURR:
+ g_assert_cmphex(qtest_readq(qts, addr), ==, NPCM7XX_MAXCURR_RESET);
+ addr += 8;
+ break;
+ case SDHC_HCVER:
+ g_assert_cmphex(qtest_readw(qts, addr), ==, NPCM7XX_HCVER_RESET);
+ addr += 2;
+ break;
+ case NPCM7XX_PRSTVALS:
+ for (i = 0; i < NPCM7XX_PRSTVALS_SIZE; ++i) {
+ g_assert_cmphex(qtest_readw(qts, addr + 2 * i), ==,
+ prstvals_resets[i]);
+ }
+ addr += NPCM7XX_PRSTVALS_SIZE * 2;
+ break;
+ default:
+ g_assert_cmphex(qtest_readb(qts, addr), ==, 0);
+ addr += 1;
+ }
+ }
+
+ qtest_quit(qts);
+}
+
+static void drive_destroy(void)
+{
+ unlink(sd_path);
+ g_free(sd_path);
+}
+
+static void drive_create(void)
+{
+ int fd, ret;
+
+ sd_path = g_strdup("/tmp/qtest_npcm7xx_sdhci.XXXXXX");
+ /* Create a temporary raw image */
+ fd = mkstemp(sd_path);
+ g_assert_cmpint(fd, >=, 0);
+ ret = ftruncate(fd, NPCM7XX_TEST_IMAGE_SIZE);
+ g_assert_cmpint(ret, ==, 0);
+ g_message("%s", sd_path);
+ close(fd);
+}
+
+int main(int argc, char **argv)
+{
+ drive_create();
+
+ g_test_init(&argc, &argv, NULL);
+
+ qtest_add_func("npcm7xx_sdhci/reset", test_reset);
+ qtest_add_func("npcm7xx_sdhci/write_sd", test_write_sd);
+ qtest_add_func("npcm7xx_sdhci/read_sd", test_read_sd);
+
+ int ret = g_test_run();
+ drive_destroy();
+ return ret;
+}
@@ -157,6 +157,7 @@ qtests_npcm7xx = \
'npcm7xx_gpio-test',
'npcm7xx_pwm-test',
'npcm7xx_rng-test',
+ 'npcm7xx_sdhci-test',
'npcm7xx_smbus-test',
'npcm7xx_timer-test',
'npcm7xx_watchdog_timer-test'] + \