===================================================================
@@ -288,6 +288,7 @@ check-qtest-sparc64-y = tests/endianness
check-qtest-arm-y = tests/tmp105-test$(EXESUF)
check-qtest-arm-y += tests/ds1338-test$(EXESUF)
+check-qtest-arm-y += tests/m25p80-test$(EXESUF)
gcov-files-arm-y += hw/misc/tmp105.c
check-qtest-arm-y += tests/virtio-blk-test$(EXESUF)
gcov-files-arm-y += arm-softmmu/hw/block/virtio-blk.c
@@ -618,6 +619,7 @@ tests/bios-tables-test$(EXESUF): tests/b
tests/pxe-test$(EXESUF): tests/pxe-test.o tests/boot-sector.o $(libqos-obj-y)
tests/tmp105-test$(EXESUF): tests/tmp105-test.o $(libqos-omap-obj-y)
tests/ds1338-test$(EXESUF): tests/ds1338-test.o $(libqos-imx-obj-y)
+tests/m25p80-test$(EXESUF): tests/m25p80-test.o
tests/i440fx-test$(EXESUF): tests/i440fx-test.o $(libqos-pc-obj-y)
tests/q35-test$(EXESUF): tests/q35-test.o $(libqos-pc-obj-y)
tests/fw_cfg-test$(EXESUF): tests/fw_cfg-test.o $(libqos-pc-obj-y)
===================================================================
@@ -0,0 +1,241 @@
+/*
+ * QTest testcase for the M25P80 Flash (Using the AST2400 SPI Controller)
+ *
+ * Copyright (C) 2016 IBM Corp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest.h"
+
+/*
+ * AST2400 SPI Controller registers
+ */
+#define R_CONF 0x00
+#define CONF_ENABLE_W0 (1 << 16)
+#define R_CE_CTRL 0x04
+#define CRTL_EXTENDED0 0 /* 32 bit addressing for SPI */
+#define R_CTRL0 0x10
+#define CTRL_CE_STOP_ACTIVE (1 << 2)
+#define CTRL_USERMODE 0x3
+
+#define AST2400_FMC_BASE 0x1E620000
+#define AST2400_FLASH_BASE 0x20000000
+
+/*
+ * Flash commands
+ */
+enum {
+ JEDEC_READ = 0x9f,
+ BULK_ERASE = 0xc7,
+ READ = 0x03,
+ PP = 0x02,
+ WREN = 0x6,
+ EN_4BYTE_ADDR = 0xB7,
+ ERASE_SECTOR = 0xd8,
+};
+
+#define FLASH_JEDEC 0x20ba19 /* n25q256a */
+#define FLASH_SIZE (32 * 1024 * 1024)
+
+#define PAGE_SIZE 256
+
+static void spi_conf(uint32_t value)
+{
+ uint32_t conf = readl(AST2400_FMC_BASE + R_CONF);
+
+ conf |= value;
+ writel(AST2400_FMC_BASE + R_CONF, conf);
+}
+
+static void spi_ctrl_start_user(void)
+{
+ uint32_t ctrl = readl(AST2400_FMC_BASE + R_CTRL0);
+
+ ctrl |= CTRL_USERMODE | CTRL_CE_STOP_ACTIVE;
+ writel(AST2400_FMC_BASE + R_CTRL0, ctrl);
+
+ ctrl &= ~CTRL_CE_STOP_ACTIVE;
+ writel(AST2400_FMC_BASE + R_CTRL0, ctrl);
+}
+
+static void spi_ctrl_stop_user(void)
+{
+ uint32_t ctrl = readl(AST2400_FMC_BASE + R_CTRL0);
+
+ ctrl |= CTRL_USERMODE | CTRL_CE_STOP_ACTIVE;
+ writel(AST2400_FMC_BASE + R_CTRL0, ctrl);
+}
+
+static void test_read_jedec(void)
+{
+ uint32_t jedec = 0x0;
+
+ spi_conf(CONF_ENABLE_W0);
+
+ spi_ctrl_start_user();
+ writeb(AST2400_FLASH_BASE, JEDEC_READ);
+ jedec |= readb(AST2400_FLASH_BASE) << 16;
+ jedec |= readb(AST2400_FLASH_BASE) << 8;
+ jedec |= readb(AST2400_FLASH_BASE);
+ spi_ctrl_stop_user();
+
+ g_assert_cmphex(jedec, ==, FLASH_JEDEC);
+}
+
+static void read_page(uint32_t addr, uint32_t *page)
+{
+ int i;
+
+ spi_ctrl_start_user();
+
+ writeb(AST2400_FLASH_BASE, EN_4BYTE_ADDR);
+ writeb(AST2400_FLASH_BASE, READ);
+ writel_be(AST2400_FLASH_BASE, addr);
+
+ /* Continuous read are supported */
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ page[i] = readl_be(AST2400_FLASH_BASE);
+ }
+ spi_ctrl_stop_user();
+}
+
+static void test_erase_sector(void)
+{
+ uint32_t some_page_addr = 0x600 * PAGE_SIZE;
+ uint32_t page[PAGE_SIZE / 4];
+ int i;
+
+ spi_conf(CONF_ENABLE_W0);
+
+ spi_ctrl_start_user();
+ writeb(AST2400_FLASH_BASE, WREN);
+ writeb(AST2400_FLASH_BASE, EN_4BYTE_ADDR);
+ writeb(AST2400_FLASH_BASE, ERASE_SECTOR);
+ writel_be(AST2400_FLASH_BASE, some_page_addr);
+ spi_ctrl_stop_user();
+
+ /* Previous page should be full of zeroes as backend is not
+ * initialized */
+ read_page(some_page_addr - PAGE_SIZE, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0x0);
+ }
+
+ /* But this one was erased */
+ read_page(some_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0xffffffff);
+ }
+}
+
+static void test_erase_all(void)
+{
+ uint32_t some_page_addr = 0x15000 * PAGE_SIZE;
+ uint32_t page[PAGE_SIZE / 4];
+ int i;
+
+ spi_conf(CONF_ENABLE_W0);
+
+ /* Check some random page. Should be full of zeroes as backend is
+ * not initialized */
+ read_page(some_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0x0);
+ }
+
+ spi_ctrl_start_user();
+ writeb(AST2400_FLASH_BASE, WREN);
+ writeb(AST2400_FLASH_BASE, BULK_ERASE);
+ spi_ctrl_stop_user();
+
+ /* Recheck that some random page */
+ read_page(some_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0xffffffff);
+ }
+}
+
+static void test_write_page(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;
+
+ spi_conf(CONF_ENABLE_W0);
+
+ spi_ctrl_start_user();
+ writeb(AST2400_FLASH_BASE, EN_4BYTE_ADDR);
+ writeb(AST2400_FLASH_BASE, PP);
+ writel_be(AST2400_FLASH_BASE, my_page_addr);
+
+ /* Fill the page with its own addresses */
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ writel_be(AST2400_FLASH_BASE, my_page_addr + i * 4);
+ }
+ spi_ctrl_stop_user();
+
+ /* Check what was written */
+ read_page(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(some_page_addr, page);
+ for (i = 0; i < PAGE_SIZE / 4; i++) {
+ g_assert_cmphex(page[i], ==, 0xffffffff);
+ }
+}
+
+static char tmp_path[] = "/tmp/qtest.m25p80.XXXXXX";
+
+int main(int argc, char **argv)
+{
+ int ret;
+ int fd;
+ char *args;
+
+ g_test_init(&argc, &argv, NULL);
+
+ fd = mkstemp(tmp_path);
+ g_assert(fd >= 0);
+ ret = ftruncate(fd, FLASH_SIZE);
+ g_assert(ret == 0);
+ close(fd);
+
+ args = g_strdup_printf("-m 256 -machine palmetto-bmc "
+ "-drive file=%s,format=raw,if=mtd",
+ tmp_path);
+ qtest_start(args);
+
+ qtest_add_func("/m25p80/read_jedec", test_read_jedec);
+ 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);
+
+ ret = g_test_run();
+
+ qtest_quit(global_qtest);
+ unlink(tmp_path);
+ g_free(args);
+ return ret;
+}