summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sandbox/cpu/cpu.c21
-rw-r--r--arch/sandbox/cpu/os.c95
-rw-r--r--arch/sandbox/cpu/start.c96
-rw-r--r--arch/sandbox/cpu/state.c353
-rw-r--r--arch/sandbox/include/asm/global_data.h2
-rw-r--r--arch/sandbox/include/asm/state.h128
-rw-r--r--arch/sandbox/include/asm/u-boot-sandbox.h2
-rw-r--r--arch/sh/cpu/sh2/config.mk2
-rw-r--r--arch/sh/cpu/sh2/cpu.c4
-rw-r--r--arch/sh/cpu/sh3/config.mk2
-rw-r--r--arch/sh/cpu/sh4/config.mk2
-rw-r--r--arch/sh/cpu/sh4/cpu.c4
-rw-r--r--arch/sh/include/asm/cache.h4
-rw-r--r--arch/sh/include/asm/processor.h8
-rw-r--r--arch/sh/lib/time_sh2.c2
15 files changed, 688 insertions, 37 deletions
diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index cfc1fda..38019e0 100644
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -5,13 +5,23 @@
#include <common.h>
#include <os.h>
+#include <asm/state.h>
DECLARE_GLOBAL_DATA_PTR;
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+void reset_cpu(ulong ignored)
{
+ if (state_uninit())
+ os_exit(2);
+
/* This is considered normal termination for now */
os_exit(0);
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ reset_cpu(0);
+
return 0;
}
@@ -28,7 +38,14 @@ unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
- return -1;
+ if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+ printf("## Transferring control to Linux (at address %08lx)...\n",
+ images->ep);
+ reset_cpu(0);
+ }
+
+ return 0;
}
int cleanup_before_linux(void)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 26f44cb..725b505 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -27,6 +27,10 @@
/* Operating System Interface */
+struct os_mem_hdr {
+ size_t length; /* number of bytes in the block */
+};
+
ssize_t os_read(int fd, void *buf, size_t count)
{
return read(fd, buf, count);
@@ -128,8 +132,45 @@ void os_tty_raw(int fd)
void *os_malloc(size_t length)
{
- return mmap(NULL, length, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ struct os_mem_hdr *hdr;
+
+ hdr = mmap(NULL, length + sizeof(*hdr), PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (hdr == MAP_FAILED)
+ return NULL;
+ hdr->length = length;
+
+ return hdr + 1;
+}
+
+void *os_free(void *ptr)
+{
+ struct os_mem_hdr *hdr = ptr;
+
+ hdr--;
+ if (ptr)
+ munmap(hdr, hdr->length + sizeof(*hdr));
+}
+
+void *os_realloc(void *ptr, size_t length)
+{
+ struct os_mem_hdr *hdr = ptr;
+ void *buf = NULL;
+
+ hdr--;
+ if (length != 0) {
+ buf = os_malloc(length);
+ if (!buf)
+ return buf;
+ if (ptr) {
+ if (length > hdr->length)
+ length = hdr->length;
+ memcpy(buf, ptr, length);
+ }
+ }
+ os_free(ptr);
+
+ return buf;
}
void os_usleep(unsigned long usec)
@@ -347,3 +388,53 @@ ssize_t os_get_filesize(const char *fname)
return ret;
return buf.st_size;
}
+
+void os_putc(int ch)
+{
+ putchar(ch);
+}
+
+void os_puts(const char *str)
+{
+ while (*str)
+ os_putc(*str++);
+}
+
+int os_write_ram_buf(const char *fname)
+{
+ struct sandbox_state *state = state_get_current();
+ int fd, ret;
+
+ fd = open(fname, O_CREAT | O_WRONLY, 0777);
+ if (fd < 0)
+ return -ENOENT;
+ ret = write(fd, state->ram_buf, state->ram_size);
+ close(fd);
+ if (ret != state->ram_size)
+ return -EIO;
+
+ return 0;
+}
+
+int os_read_ram_buf(const char *fname)
+{
+ struct sandbox_state *state = state_get_current();
+ int fd, ret;
+ int size;
+
+ size = os_get_filesize(fname);
+ if (size < 0)
+ return -ENOENT;
+ if (size != state->ram_size)
+ return -ENOSPC;
+ fd = open(fname, O_RDONLY);
+ if (fd < 0)
+ return -ENOENT;
+
+ ret = read(fd, state->ram_buf, state->ram_size);
+ close(fd);
+ if (ret != state->ram_size)
+ return -EIO;
+
+ return 0;
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 1b15454..1df21d4 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -4,11 +4,12 @@
*/
#include <common.h>
+#include <os.h>
#include <asm/getopt.h>
#include <asm/sections.h>
#include <asm/state.h>
-#include <os.h>
+DECLARE_GLOBAL_DATA_PTR;
int sandbox_early_getopt_check(void)
{
@@ -50,9 +51,9 @@ int sandbox_early_getopt_check(void)
/* then the long flag */
if (opt->has_arg)
- printf("--%-*s", max_noarg_len, opt->flag);
- else
printf("--%-*s <arg> ", max_arg_len, opt->flag);
+ else
+ printf("--%-*s", max_noarg_len, opt->flag);
/* finally the help text */
printf(" %s\n", opt->help);
@@ -75,7 +76,8 @@ int sandbox_main_loop_init(void)
/* Execute command if required */
if (state->cmd) {
run_command_list(state->cmd, -1, 0);
- os_exit(state->exit_type);
+ if (!state->interactive)
+ os_exit(state->exit_type);
}
return 0;
@@ -96,25 +98,93 @@ static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
}
SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
-int main(int argc, char *argv[])
+static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
+ const char *arg)
+{
+ state->interactive = true;
+ return 0;
+}
+
+SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
+
+static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
+ const char *arg)
{
- struct sandbox_state *state;
int err;
- err = state_init();
- if (err)
+ /* For now assume we always want to write it */
+ state->write_ram_buf = true;
+ state->ram_buf_fname = arg;
+
+ if (os_read_ram_buf(arg)) {
+ printf("Failed to read RAM buffer\n");
return err;
+ }
+
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
+ "Read/write ram_buf memory contents from file");
+
+static int sandbox_cmdline_cb_state(struct sandbox_state *state,
+ const char *arg)
+{
+ state->state_fname = arg;
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT");
+
+static int sandbox_cmdline_cb_read(struct sandbox_state *state,
+ const char *arg)
+{
+ state->read_state = true;
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup");
+
+static int sandbox_cmdline_cb_write(struct sandbox_state *state,
+ const char *arg)
+{
+ state->write_state = true;
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit");
+
+static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
+ const char *arg)
+{
+ state->ignore_missing_state_on_read = true;
+ return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
+ "Ignore missing state on read");
+
+int main(int argc, char *argv[])
+{
+ struct sandbox_state *state;
+ int ret;
+
+ ret = state_init();
+ if (ret)
+ goto err;
state = state_get_current();
if (os_parse_args(state, argc, argv))
return 1;
- /*
- * Do pre- and post-relocation init, then start up U-Boot. This will
- * never return.
- */
+ ret = sandbox_read_state(state, state->state_fname);
+ if (ret)
+ goto err;
+
+ /* Do pre- and post-relocation init */
board_init_f(0);
- /* NOTREACHED - board_init_f() does not return */
+ board_init_r(gd->new_gd, 0);
+
+ /* NOTREACHED - board_init_r() does not return */
return 0;
+
+err:
+ printf("Error %d\n", ret);
+ return 1;
}
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index 56d5041..a145808 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -4,6 +4,9 @@
*/
#include <common.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <os.h>
#include <asm/state.h>
/* Main state record for the sandbox */
@@ -15,6 +18,324 @@ void state_record_exit(enum exit_type_id exit_type)
state->exit_type = exit_type;
}
+static int state_ensure_space(int extra_size)
+{
+ void *blob = state->state_fdt;
+ int used, size, free;
+ void *buf;
+ int ret;
+
+ used = fdt_off_dt_strings(blob) + fdt_size_dt_strings(blob);
+ size = fdt_totalsize(blob);
+ free = size - used;
+ if (free > extra_size)
+ return 0;
+
+ size = used + extra_size;
+ buf = os_malloc(size);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = fdt_open_into(blob, buf, size);
+ if (ret) {
+ os_free(buf);
+ return -EIO;
+ }
+
+ os_free(blob);
+ state->state_fdt = buf;
+ return 0;
+}
+
+static int state_read_file(struct sandbox_state *state, const char *fname)
+{
+ int size;
+ int ret;
+ int fd;
+
+ size = os_get_filesize(fname);
+ if (size < 0) {
+ printf("Cannot find sandbox state file '%s'\n", fname);
+ return -ENOENT;
+ }
+ state->state_fdt = os_malloc(size);
+ if (!state->state_fdt) {
+ puts("No memory to read sandbox state\n");
+ return -ENOMEM;
+ }
+ fd = os_open(fname, OS_O_RDONLY);
+ if (fd < 0) {
+ printf("Cannot open sandbox state file '%s'\n", fname);
+ ret = -EPERM;
+ goto err_open;
+ }
+ if (os_read(fd, state->state_fdt, size) != size) {
+ printf("Cannot read sandbox state file '%s'\n", fname);
+ ret = -EIO;
+ goto err_read;
+ }
+ os_close(fd);
+
+ return 0;
+err_read:
+ os_close(fd);
+err_open:
+ os_free(state->state_fdt);
+ state->state_fdt = NULL;
+
+ return ret;
+}
+
+/***
+ * sandbox_read_state_nodes() - Read state associated with a driver
+ *
+ * This looks through all compatible nodes and calls the read function on
+ * each one, to read in the state.
+ *
+ * If nothing is found, it still calls the read function once, to set up a
+ * single global state for that driver.
+ *
+ * @state: Sandbox state
+ * @io: Method to use for reading state
+ * @blob: FDT containing state
+ * @return 0 if OK, -EINVAL if the read function returned failure
+ */
+int sandbox_read_state_nodes(struct sandbox_state *state,
+ struct sandbox_state_io *io, const void *blob)
+{
+ int count;
+ int node;
+ int ret;
+
+ debug(" - read %s\n", io->name);
+ if (!io->read)
+ return 0;
+
+ node = -1;
+ count = 0;
+ while (blob) {
+ node = fdt_node_offset_by_compatible(blob, node, io->compat);
+ if (node < 0)
+ return 0; /* No more */
+ debug(" - read node '%s'\n", fdt_get_name(blob, node, NULL));
+ ret = io->read(blob, node);
+ if (ret) {
+ printf("Unable to read state for '%s'\n", io->compat);
+ return -EINVAL;
+ }
+ count++;
+ }
+
+ /*
+ * If we got no saved state, call the read function once without a
+ * node, to set up the global state.
+ */
+ if (count == 0) {
+ debug(" - read global\n");
+ ret = io->read(NULL, -1);
+ if (ret) {
+ printf("Unable to read global state for '%s'\n",
+ io->name);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+int sandbox_read_state(struct sandbox_state *state, const char *fname)
+{
+ struct sandbox_state_io *io;
+ const void *blob;
+ bool got_err;
+ int ret;
+
+ if (state->read_state && fname) {
+ ret = state_read_file(state, fname);
+ if (ret == -ENOENT && state->ignore_missing_state_on_read)
+ ret = 0;
+ if (ret)
+ return ret;
+ }
+
+ /* Call all the state read funtcions */
+ got_err = false;
+ blob = state->state_fdt;
+ io = ll_entry_start(struct sandbox_state_io, state_io);
+ for (; io < ll_entry_end(struct sandbox_state_io, state_io); io++) {
+ ret = sandbox_read_state_nodes(state, io, blob);
+ if (ret < 0)
+ got_err = true;
+ }
+
+ if (state->read_state && fname) {
+ debug("Read sandbox state from '%s'%s\n", fname,
+ got_err ? " (with errors)" : "");
+ }
+
+ return got_err ? -1 : 0;
+}
+
+/***
+ * sandbox_write_state_node() - Write state associated with a driver
+ *
+ * This calls the write function to write out global state for that driver.
+ *
+ * TODO(sjg@chromium.org): Support writing out state from multiple drivers
+ * of the same time. We don't need this yet,and it will be much easier to
+ * do when driver model is available.
+ *
+ * @state: Sandbox state
+ * @io: Method to use for writing state
+ * @return 0 if OK, -EIO if there is a fatal error (such as out of space
+ * for adding the data), -EINVAL if the write function failed.
+ */
+int sandbox_write_state_node(struct sandbox_state *state,
+ struct sandbox_state_io *io)
+{
+ void *blob;
+ int node;
+ int ret;
+
+ if (!io->write)
+ return 0;
+
+ ret = state_ensure_space(SANDBOX_STATE_MIN_SPACE);
+ if (ret) {
+ printf("Failed to add more space for state\n");
+ return -EIO;
+ }
+
+ /* The blob location can change when the size increases */
+ blob = state->state_fdt;
+ node = fdt_node_offset_by_compatible(blob, -1, io->compat);
+ if (node == -FDT_ERR_NOTFOUND) {
+ node = fdt_add_subnode(blob, 0, io->name);
+ if (node < 0) {
+ printf("Cannot create node '%s': %s\n", io->name,
+ fdt_strerror(node));
+ return -EIO;
+ }
+
+ if (fdt_setprop_string(blob, node, "compatible", io->compat)) {
+ puts("Cannot set compatible\n");
+ return -EIO;
+ }
+ } else if (node < 0) {
+ printf("Cannot access node '%s': %s\n", io->name,
+ fdt_strerror(node));
+ return -EIO;
+ }
+ debug("Write state for '%s' to node %d\n", io->compat, node);
+ ret = io->write(blob, node);
+ if (ret) {
+ printf("Unable to write state for '%s'\n", io->compat);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int sandbox_write_state(struct sandbox_state *state, const char *fname)
+{
+ struct sandbox_state_io *io;
+ bool got_err;
+ int size;
+ int ret;
+ int fd;
+
+ /* Create a state FDT if we don't have one */
+ if (!state->state_fdt) {
+ size = 0x4000;
+ state->state_fdt = os_malloc(size);
+ if (!state->state_fdt) {
+ puts("No memory to create FDT\n");
+ return -ENOMEM;
+ }
+ ret = fdt_create_empty_tree(state->state_fdt, size);
+ if (ret < 0) {
+ printf("Cannot create empty state FDT: %s\n",
+ fdt_strerror(ret));
+ ret = -EIO;
+ goto err_create;
+ }
+ }
+
+ /* Call all the state write funtcions */
+ got_err = false;
+ io = ll_entry_start(struct sandbox_state_io, state_io);
+ ret = 0;
+ for (; io < ll_entry_end(struct sandbox_state_io, state_io); io++) {
+ ret = sandbox_write_state_node(state, io);
+ if (ret == -EIO)
+ break;
+ else if (ret)
+ got_err = true;
+ }
+
+ if (ret == -EIO) {
+ printf("Could not write sandbox state\n");
+ goto err_create;
+ }
+
+ ret = fdt_pack(state->state_fdt);
+ if (ret < 0) {
+ printf("Cannot pack state FDT: %s\n", fdt_strerror(ret));
+ ret = -EINVAL;
+ goto err_create;
+ }
+ size = fdt_totalsize(state->state_fdt);
+ fd = os_open(fname, OS_O_WRONLY | OS_O_CREAT);
+ if (fd < 0) {
+ printf("Cannot open sandbox state file '%s'\n", fname);
+ ret = -EIO;
+ goto err_create;
+ }
+ if (os_write(fd, state->state_fdt, size) != size) {
+ printf("Cannot write sandbox state file '%s'\n", fname);
+ ret = -EIO;
+ goto err_write;
+ }
+ os_close(fd);
+
+ debug("Wrote sandbox state to '%s'%s\n", fname,
+ got_err ? " (with errors)" : "");
+
+ return 0;
+err_write:
+ os_close(fd);
+err_create:
+ os_free(state->state_fdt);
+
+ return ret;
+}
+
+int state_setprop(int node, const char *prop_name, const void *data, int size)
+{
+ void *blob;
+ int len;
+ int ret;
+
+ fdt_getprop(state->state_fdt, node, prop_name, &len);
+
+ /* Add space for the new property, its name and some overhead */
+ ret = state_ensure_space(size - len + strlen(prop_name) + 32);
+ if (ret)
+ return ret;
+
+ /* This should succeed, barring a mutiny */
+ blob = state->state_fdt;
+ ret = fdt_setprop(blob, node, prop_name, data, size);
+ if (ret) {
+ printf("%s: Unable to set property '%s' in node '%s': %s\n",
+ __func__, prop_name, fdt_get_name(blob, node, NULL),
+ fdt_strerror(ret));
+ return -ENOSPC;
+ }
+
+ return 0;
+}
+
struct sandbox_state *state_get_current(void)
{
assert(state);
@@ -25,6 +346,10 @@ int state_init(void)
{
state = &main_state;
+ state->ram_size = CONFIG_SYS_SDRAM_SIZE;
+ state->ram_buf = os_malloc(state->ram_size);
+ assert(state->ram_buf);
+
/*
* Example of how to use GPIOs:
*
@@ -33,3 +358,31 @@ int state_init(void)
*/
return 0;
}
+
+int state_uninit(void)
+{
+ int err;
+
+ state = &main_state;
+
+ if (state->write_ram_buf) {
+ err = os_write_ram_buf(state->ram_buf_fname);
+ if (err) {
+ printf("Failed to write RAM buffer\n");
+ return err;
+ }
+ }
+
+ if (state->write_state) {
+ if (sandbox_write_state(state, state->state_fname)) {
+ printf("Failed to write sandbox state\n");
+ return -1;
+ }
+ }
+
+ if (state->state_fdt)
+ os_free(state->state_fdt);
+ memset(state, '\0', sizeof(*state));
+
+ return 0;
+}
diff --git a/arch/sandbox/include/asm/global_data.h b/arch/sandbox/include/asm/global_data.h
index d70532a..b2e9b48 100644
--- a/arch/sandbox/include/asm/global_data.h
+++ b/arch/sandbox/include/asm/global_data.h
@@ -12,7 +12,7 @@
/* Architecture-specific global data */
struct arch_global_data {
- u8 *ram_buf; /* emulated RAM buffer */
+ uint8_t *ram_buf; /* emulated RAM buffer */
};
#include <asm-generic/global_data.h>
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index a38820b..e8e4fea 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -7,6 +7,8 @@
#define __SANDBOX_STATE_H
#include <config.h>
+#include <stdbool.h>
+#include <linux/stringify.h>
/* How we exited U-Boot */
enum exit_type_id {
@@ -23,17 +25,92 @@ struct sandbox_spi_info {
/* The complete state of the test system */
struct sandbox_state {
const char *cmd; /* Command to execute */
+ bool interactive; /* Enable cmdline after execute */
const char *fdt_fname; /* Filename of FDT binary */
enum exit_type_id exit_type; /* How we exited U-Boot */
const char *parse_err; /* Error to report from parsing */
int argc; /* Program arguments */
char **argv;
+ uint8_t *ram_buf; /* Emulated RAM buffer */
+ unsigned int ram_size; /* Size of RAM buffer */
+ const char *ram_buf_fname; /* Filename to use for RAM buffer */
+ bool write_ram_buf; /* Write RAM buffer on exit */
+ const char *state_fname; /* File containing sandbox state */
+ void *state_fdt; /* Holds saved state for sandbox */
+ bool read_state; /* Read sandbox state on startup */
+ bool write_state; /* Write sandbox state on exit */
+ bool ignore_missing_state_on_read; /* No error if state missing */
/* Pointer to information for each SPI bus/cs */
struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS]
[CONFIG_SANDBOX_SPI_MAX_CS];
};
+/* Minimum space we guarantee in the state FDT when calling read/write*/
+#define SANDBOX_STATE_MIN_SPACE 0x1000
+
+/**
+ * struct sandbox_state_io - methods to saved/restore sandbox state
+ * @name: Name of of the device tree node, also the name of the variable
+ * holding this data so it should be an identifier (use underscore
+ * instead of minus)
+ * @compat: Compatible string for the node containing this state
+ *
+ * @read: Function to read state from FDT
+ * If data is available, then blob and node will provide access to it. If
+ * not (blob == NULL and node == -1) this function should set up an empty
+ * data set for start-of-day.
+ * @param blob: Pointer to device tree blob, or NULL if no data to read
+ * @param node: Node offset to read from
+ * @return 0 if OK, -ve on error
+ *
+ * @write: Function to write state to FDT
+ * The caller will ensure that there is a node ready for the state. The
+ * node may already contain the old state, in which case it should be
+ * overridden. There is guaranteed to be SANDBOX_STATE_MIN_SPACE bytes
+ * of free space, so error checking is not required for fdt_setprop...()
+ * calls which add up to less than this much space.
+ *
+ * For adding larger properties, use state_setprop().
+ *
+ * @param blob: Device tree blob holding state
+ * @param node: Node to write our state into
+ *
+ * Note that it is possible to save data as large blobs or as individual
+ * hierarchical properties. However, unless you intend to keep state files
+ * around for a long time and be able to run an old state file on a new
+ * sandbox, it might not be worth using individual properties for everything.
+ * This is certainly supported, it is just a matter of the effort you wish
+ * to put into the state read/write feature.
+ */
+struct sandbox_state_io {
+ const char *name;
+ const char *compat;
+ int (*write)(void *blob, int node);
+ int (*read)(const void *blob, int node);
+};
+
+/**
+ * SANDBOX_STATE_IO - Declare sandbox state to read/write
+ *
+ * Sandbox permits saving state from one run and restoring it in another. This
+ * allows the test system to retain state between runs and thus better
+ * emulate a real system. Examples of state that might be useful to save are
+ * the emulated GPIOs pin settings, flash memory contents and TPM private
+ * data. U-Boot memory contents is dealth with separately since it is large
+ * and it is not normally useful to save it (since a normal system does not
+ * preserve DRAM between runs). See the '-m' option for this.
+ *
+ * See struct sandbox_state_io above for member documentation.
+ */
+#define SANDBOX_STATE_IO(_name, _compat, _read, _write) \
+ ll_entry_declare(struct sandbox_state_io, _name, state_io) = { \
+ .name = __stringify(_name), \
+ .read = _read, \
+ .write = _write, \
+ .compat = _compat, \
+ }
+
/**
* Record the exit type to be reported by the test program.
*
@@ -49,8 +126,59 @@ void state_record_exit(enum exit_type_id exit_type);
struct sandbox_state *state_get_current(void);
/**
+ * Read the sandbox state from the supplied device tree file
+ *
+ * This calls all registered state handlers to read in the sandbox state
+ * from a previous test run.
+ *
+ * @param state Sandbox state to update
+ * @param fname Filename of device tree file to read from
+ * @return 0 if OK, -ve on error
+ */
+int sandbox_read_state(struct sandbox_state *state, const char *fname);
+
+/**
+ * Write the sandbox state to the supplied device tree file
+ *
+ * This calls all registered state handlers to write out the sandbox state
+ * so that it can be preserved for a future test run.
+ *
+ * If the file exists it is overwritten.
+ *
+ * @param state Sandbox state to update
+ * @param fname Filename of device tree file to write to
+ * @return 0 if OK, -ve on error
+ */
+int sandbox_write_state(struct sandbox_state *state, const char *fname);
+
+/**
+ * Add a property to a sandbox state node
+ *
+ * This is equivalent to fdt_setprop except that it automatically enlarges
+ * the device tree if necessary. That means it is safe to write any amount
+ * of data here.
+ *
+ * This function can only be called from within struct sandbox_state_io's
+ * ->write method, i.e. within state I/O drivers.
+ *
+ * @param node Device tree node to write to
+ * @param prop_name Property to write
+ * @param data Data to write into property
+ * @param size Size of data to write into property
+ */
+int state_setprop(int node, const char *prop_name, const void *data, int size);
+
+/**
* Initialize the test system state
*/
int state_init(void);
+/**
+ * Uninitialize the test system state, writing out state if configured to
+ * do so.
+ *
+ * @return 0 if OK, -ve on error
+ */
+int state_uninit(void);
+
#endif
diff --git a/arch/sandbox/include/asm/u-boot-sandbox.h b/arch/sandbox/include/asm/u-boot-sandbox.h
index bed720c..5707c27 100644
--- a/arch/sandbox/include/asm/u-boot-sandbox.h
+++ b/arch/sandbox/include/asm/u-boot-sandbox.h
@@ -23,4 +23,6 @@ int dram_init(void);
int sandbox_early_getopt_check(void);
int sandbox_main_loop_init(void);
+int cleanup_before_linux(void);
+
#endif /* _U_BOOT_SANDBOX_H_ */
diff --git a/arch/sh/cpu/sh2/config.mk b/arch/sh/cpu/sh2/config.mk
index 8a0de96..69273b4 100644
--- a/arch/sh/cpu/sh2/config.mk
+++ b/arch/sh/cpu/sh2/config.mk
@@ -12,7 +12,7 @@ PLATFORM_CPPFLAGS += -m2a -m2a-nofpu -mb -ffreestanding
else # SH2
PLATFORM_CPPFLAGS += -m3e -mb
endif
-PLATFORM_CPPFLAGS += $(call cc-option,-mno-fdpic)
+PLATFORM_CPPFLAGS += -DCONFIG_SH2 $(call cc-option,-mno-fdpic)
PLATFORM_RELFLAGS += -ffixed-r13
PLATFORM_LDFLAGS += $(ENDIANNESS)
diff --git a/arch/sh/cpu/sh2/cpu.c b/arch/sh/cpu/sh2/cpu.c
index 18479a4..a2f856f 100644
--- a/arch/sh/cpu/sh2/cpu.c
+++ b/arch/sh/cpu/sh2/cpu.c
@@ -23,11 +23,7 @@
int checkcpu(void)
{
-#if defined(CONFIG_SH2A)
- puts("CPU: SH2A\n");
-#else
puts("CPU: SH2\n");
-#endif
return 0;
}
diff --git a/arch/sh/cpu/sh3/config.mk b/arch/sh/cpu/sh3/config.mk
index 5c77e5c..abd4b8d 100644
--- a/arch/sh/cpu/sh3/config.mk
+++ b/arch/sh/cpu/sh3/config.mk
@@ -11,5 +11,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
#
-PLATFORM_CPPFLAGS += -m3
+PLATFORM_CPPFLAGS += -DCONFIG_SH3 -m3
PLATFORM_RELFLAGS += -ffixed-r13
diff --git a/arch/sh/cpu/sh4/config.mk b/arch/sh/cpu/sh4/config.mk
index c357557..753580b 100644
--- a/arch/sh/cpu/sh4/config.mk
+++ b/arch/sh/cpu/sh4/config.mk
@@ -8,5 +8,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
#
-PLATFORM_CPPFLAGS += -m4-nofpu
+PLATFORM_CPPFLAGS += -DCONFIG_SH4 -m4-nofpu
PLATFORM_RELFLAGS += -ffixed-r13
diff --git a/arch/sh/cpu/sh4/cpu.c b/arch/sh/cpu/sh4/cpu.c
index 91133a3..e8ee0a4 100644
--- a/arch/sh/cpu/sh4/cpu.c
+++ b/arch/sh/cpu/sh4/cpu.c
@@ -13,11 +13,7 @@
int checkcpu(void)
{
-#ifdef CONFIG_SH4A
- puts("CPU: SH-4A\n");
-#else
puts("CPU: SH4\n");
-#endif
return 0;
}
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index b21dc44..0698a37 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -1,7 +1,7 @@
#ifndef __ASM_SH_CACHE_H
#define __ASM_SH_CACHE_H
-#if defined(CONFIG_SH4) || defined(CONFIG_SH4A)
+#if defined(CONFIG_SH4)
int cache_control(unsigned int cmd);
@@ -18,7 +18,7 @@ struct __large_struct { unsigned long buf[100]; };
*/
#define ARCH_DMA_MINALIGN 32
-#endif /* CONFIG_SH4 || CONFIG_SH4A */
+#endif /* CONFIG_SH4 */
/*
* Use the L1 data cache line size value for the minimum DMA buffer alignment
diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h
index 938a89c..b8677da 100644
--- a/arch/sh/include/asm/processor.h
+++ b/arch/sh/include/asm/processor.h
@@ -1,12 +1,10 @@
#ifndef _ASM_SH_PROCESSOR_H_
#define _ASM_SH_PROCESSOR_H_
-#if defined(CONFIG_SH2) || \
- defined (CONFIG_SH2A)
+#if defined(CONFIG_SH2)
# include <asm/cpu_sh2.h>
-#elif defined (CONFIG_SH3)
+#elif defined(CONFIG_SH3)
# include <asm/cpu_sh3.h>
-#elif defined (CONFIG_SH4) || \
- defined (CONFIG_SH4A)
+#elif defined(CONFIG_SH4)
# include <asm/cpu_sh4.h>
#endif
#endif
diff --git a/arch/sh/lib/time_sh2.c b/arch/sh/lib/time_sh2.c
index be3896c..4b1f47b 100644
--- a/arch/sh/lib/time_sh2.c
+++ b/arch/sh/lib/time_sh2.c
@@ -84,5 +84,5 @@ void __udelay(unsigned long usec)
unsigned long get_tbclk(void)
{
- return CONFIG_SYS_HZ;
+ return CONFIG_SH_CMT_CLK_FREQ;
}