Merge tag 'dm-pull-6feb20' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm

sandbox conversion to SDL2
TPM TEE driver
Various minor sandbox video enhancements
New driver model core utility functions

13 files changed, 338 insertions, 196 deletions

diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index a225c9c..189e9c2 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -5,7 +5,7 @@ PLATFORM_CPPFLAGS += -D__SANDBOX__ -U_FORTIFY_SOURCE
 PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM
 PLATFORM_CPPFLAGS += -fPIC
 PLATFORM_LIBS += -lrt
-SDL_CONFIG ?= sdl-config
+SDL_CONFIG ?= sdl2-config
 
 # Define this to avoid linking with SDL, which requires SDL libraries
 # This can solve 'sdl-config: Command not found' errors
diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index ff74303..56ee3f5 100644
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -10,6 +10,7 @@
 #include <linux/libfdt.h>
 #include <os.h>
 #include <asm/io.h>
+#include <asm/malloc.h>
 #include <asm/setjmp.h>
 #include <asm/state.h>
 #include <dm/root.h>
diff --git a/arch/sandbox/cpu/eth-raw-os.c b/arch/sandbox/cpu/eth-raw-os.c
index 8d05bc2..da01d1a 100644
--- a/arch/sandbox/cpu/eth-raw-os.c
+++ b/arch/sandbox/cpu/eth-raw-os.c
@@ -74,7 +74,7 @@ static int _raw_packet_start(struct eth_sandbox_raw_priv *priv,
 
 	/* Prepare device struct */
 	priv->local_bind_sd = -1;
-	priv->device = os_malloc(sizeof(struct sockaddr_ll));
+	priv->device = malloc(sizeof(struct sockaddr_ll));
 	if (priv->device == NULL)
 		return -ENOMEM;
 	device = priv->device;
@@ -147,7 +147,7 @@ static int _local_inet_start(struct eth_sandbox_raw_priv *priv)
 	/* Prepare device struct */
 	priv->local_bind_sd = -1;
 	priv->local_bind_udp_port = 0;
-	priv->device = os_malloc(sizeof(struct sockaddr_in));
+	priv->device = malloc(sizeof(struct sockaddr_in));
 	if (priv->device == NULL)
 		return -ENOMEM;
 	device = priv->device;
@@ -282,7 +282,7 @@ int sandbox_eth_raw_os_recv(void *packet, int *length,
 
 void sandbox_eth_raw_os_stop(struct eth_sandbox_raw_priv *priv)
 {
-	os_free(priv->device);
+	free(priv->device);
 	priv->device = NULL;
 	close(priv->sd);
 	priv->sd = -1;
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 79094fb..f7c73e3 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -137,7 +137,7 @@ int os_read_file(const char *fname, void **bufp, int *sizep)
 		printf("Cannot seek to start of file '%s'\n", fname);
 		goto err;
 	}
-	*bufp = os_malloc(size);
+	*bufp = malloc(size);
 	if (!*bufp) {
 		printf("Not enough memory to read file '%s'\n", fname);
 		ret = -ENOMEM;
@@ -238,29 +238,6 @@ void os_free(void *ptr)
 	}
 }
 
-void *os_realloc(void *ptr, size_t length)
-{
-	int page_size = getpagesize();
-	struct os_mem_hdr *hdr;
-	void *buf = NULL;
-
-	if (length) {
-		buf = os_malloc(length);
-		if (!buf)
-			return buf;
-		if (ptr) {
-			hdr = ptr - page_size;
-			if (length > hdr->length)
-				length = hdr->length;
-			memcpy(buf, ptr, length);
-		}
-	}
-	if (ptr)
-		os_free(ptr);
-
-	return buf;
-}
-
 void os_usleep(unsigned long usec)
 {
 	usleep(usec);
@@ -306,8 +283,8 @@ int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
 	state->argv = argv;
 
 	/* dynamically construct the arguments to the system getopt_long */
-	short_opts = os_malloc(sizeof(*short_opts) * num_options * 2 + 1);
-	long_opts = os_malloc(sizeof(*long_opts) * num_options);
+	short_opts = malloc(sizeof(*short_opts) * num_options * 2 + 1);
+	long_opts = malloc(sizeof(*long_opts) * (num_options + 1));
 	if (!short_opts || !long_opts)
 		return 1;
 
@@ -337,6 +314,7 @@ int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
 	/* we need to handle output ourselves since u-boot provides printf */
 	opterr = 0;
 
+	memset(&long_opts[num_options], '\0', sizeof(*long_opts));
 	/*
 	 * walk all of the options the user gave us on the command line,
 	 * figure out what u-boot option structure they belong to (via
@@ -385,7 +363,7 @@ void os_dirent_free(struct os_dirent_node *node)
 
 	while (node) {
 		next = node->next;
-		os_free(node);
+		free(node);
 		node = next;
 	}
 }
@@ -410,7 +388,7 @@ int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
 	/* Create a buffer upfront, with typically sufficient size */
 	dirlen = strlen(dirname) + 2;
 	len = dirlen + 256;
-	fname = os_malloc(len);
+	fname = malloc(len);
 	if (!fname) {
 		ret = -ENOMEM;
 		goto done;
@@ -423,7 +401,7 @@ int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
 			ret = errno;
 			break;
 		}
-		next = os_malloc(sizeof(*node) + strlen(entry->d_name) + 1);
+		next = malloc(sizeof(*node) + strlen(entry->d_name) + 1);
 		if (!next) {
 			os_dirent_free(head);
 			ret = -ENOMEM;
@@ -432,10 +410,10 @@ int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
 		if (dirlen + strlen(entry->d_name) > len) {
 			len = dirlen + strlen(entry->d_name);
 			old_fname = fname;
-			fname = os_realloc(fname, len);
+			fname = realloc(fname, len);
 			if (!fname) {
-				os_free(old_fname);
-				os_free(next);
+				free(old_fname);
+				free(next);
 				os_dirent_free(head);
 				ret = -ENOMEM;
 				goto done;
@@ -469,7 +447,7 @@ int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
 
 done:
 	closedir(dir);
-	os_free(fname);
+	free(fname);
 	return ret;
 }
 
@@ -586,7 +564,7 @@ static int add_args(char ***argvp, char *add_args[], int count)
 	for (argc = 0; (*argvp)[argc]; argc++)
 		;
 
-	argv = os_malloc((argc + count + 1) * sizeof(char *));
+	argv = malloc((argc + count + 1) * sizeof(char *));
 	if (!argv) {
 		printf("Out of memory for %d argv\n", count);
 		return -ENOMEM;
@@ -669,7 +647,7 @@ static int os_jump_to_file(const char *fname)
 		os_exit(2);
 
 	err = execv(fname, argv);
-	os_free(argv);
+	free(argv);
 	if (err) {
 		perror("Unable to run image");
 		printf("Image filename '%s'\n", fname);
diff --git a/arch/sandbox/cpu/sdl.c b/arch/sandbox/cpu/sdl.c
index 080c7c8..6416cab 100644
--- a/arch/sandbox/cpu/sdl.c
+++ b/arch/sandbox/cpu/sdl.c
@@ -5,8 +5,9 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <stdbool.h>
 #include <linux/input.h>
-#include <SDL.h>
+#include <SDL2/SDL.h>
 #include <asm/state.h>
 
 /**
@@ -24,19 +25,42 @@ struct buf_info {
 	uint8_t *data;
 };
 
+/**
+ * struct sdl_info - Information about our use of the SDL library
+ *
+ * @width: Width of simulated LCD display
+ * @height: Height of simulated LCD display
+ * @vis_width: Visible width (may be larger to allow for scaling up)
+ * @vis_height: Visible height (may be larger to allow for scaling up)
+ * @depth: Depth of the display in bits per pixel (16 or 32)
+ * @pitch: Number of bytes per line of the display
+ * @sample_rate: Current sample rate for audio
+ * @audio_active: true if audio can be used
+ * @inited: true if this module is initialised
+ * @cur_buf: Current audio buffer being used by sandbox_sdl_fill_audio (0 or 1)
+ * @buf: The two available audio buffers. SDL can be reading from one while we
+ *	are setting up the next
+ * @running: true if audio is running
+ * @stopping: true if audio will stop once it runs out of data
+ * @texture: SDL texture to use for U-Boot display contents
+ * @renderer: SDL renderer to use
+ */
 static struct sdl_info {
-	SDL_Surface *screen;
 	int width;
 	int height;
+	int vis_width;
+	int vis_height;
 	int depth;
 	int pitch;
-	uint frequency;
 	uint sample_rate;
 	bool audio_active;
 	bool inited;
 	int cur_buf;
 	struct buf_info buf[2];
 	bool running;
+	bool stopping;
+	SDL_Texture *texture;
+	SDL_Renderer *renderer;
 } sdl;
 
 static void sandbox_sdl_poll_events(void)
@@ -62,7 +86,7 @@ static int sandbox_sdl_ensure_init(void)
 {
 	if (!sdl.inited) {
 		if (SDL_Init(0) < 0) {
-			printf("Unable to initialize SDL: %s\n",
+			printf("Unable to initialise SDL: %s\n",
 			       SDL_GetError());
 			return -EIO;
 		}
@@ -74,7 +98,8 @@ static int sandbox_sdl_ensure_init(void)
 	return 0;
 }
 
-int sandbox_sdl_init_display(int width, int height, int log2_bpp)
+int sandbox_sdl_init_display(int width, int height, int log2_bpp,
+			     bool double_size)
 {
 	struct sandbox_state *state = state_get_current();
 	int err;
@@ -85,16 +110,52 @@ int sandbox_sdl_init_display(int width, int height, int log2_bpp)
 	if (err)
 		return err;
 	if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0) {
-		printf("Unable to initialize SDL LCD: %s\n", SDL_GetError());
+		printf("Unable to initialise SDL LCD: %s\n", SDL_GetError());
 		return -EPERM;
 	}
-	SDL_WM_SetCaption("U-Boot", "U-Boot");
-
 	sdl.width = width;
 	sdl.height = height;
+	if (double_size) {
+		sdl.vis_width = sdl.width * 2;
+		sdl.vis_height = sdl.height * 2;
+	} else {
+		sdl.vis_width = sdl.width;
+		sdl.vis_height = sdl.height;
+	}
+
 	sdl.depth = 1 << log2_bpp;
 	sdl.pitch = sdl.width * sdl.depth / 8;
-	sdl.screen = SDL_SetVideoMode(width, height, 0, 0);
+	SDL_Window *screen = SDL_CreateWindow("U-Boot", SDL_WINDOWPOS_UNDEFINED,
+					      SDL_WINDOWPOS_UNDEFINED,
+					      sdl.vis_width, sdl.vis_height, 0);
+	if (!screen) {
+		printf("Unable to initialise SDL screen: %s\n",
+		       SDL_GetError());
+		return -EIO;
+	}
+	if (log2_bpp != 4 && log2_bpp != 5) {
+		printf("U-Boot SDL does not support depth %d\n", log2_bpp);
+		return -EINVAL;
+	}
+	sdl.renderer = SDL_CreateRenderer(screen, -1,
+					  SDL_RENDERER_ACCELERATED |
+					  SDL_RENDERER_PRESENTVSYNC);
+	if (!sdl.renderer) {
+		printf("Unable to initialise SDL renderer: %s\n",
+		       SDL_GetError());
+		return -EIO;
+	}
+
+	sdl.texture = SDL_CreateTexture(sdl.renderer, log2_bpp == 4 ?
+					SDL_PIXELFORMAT_RGB565 :
+					SDL_PIXELFORMAT_RGB888,
+					SDL_TEXTUREACCESS_STREAMING,
+					width, height);
+	if (!sdl.texture) {
+		printf("Unable to initialise SDL texture: %s\n",
+		       SDL_GetError());
+		return -EBADF;
+	}
 	sandbox_sdl_poll_events();
 
 	return 0;
@@ -102,136 +163,137 @@ int sandbox_sdl_init_display(int width, int height, int log2_bpp)
 
 int sandbox_sdl_sync(void *lcd_base)
 {
-	SDL_Surface *frame;
-
-	frame = SDL_CreateRGBSurfaceFrom(lcd_base, sdl.width, sdl.height,
-			sdl.depth, sdl.pitch,
-			0x1f << 11, 0x3f << 5, 0x1f << 0, 0);
-	SDL_BlitSurface(frame, NULL, sdl.screen, NULL);
-	SDL_FreeSurface(frame);
-	SDL_UpdateRect(sdl.screen, 0, 0, 0, 0);
+	SDL_UpdateTexture(sdl.texture, NULL, lcd_base, sdl.pitch);
+	SDL_RenderCopy(sdl.renderer, sdl.texture, NULL, NULL);
+	SDL_RenderPresent(sdl.renderer);
 	sandbox_sdl_poll_events();
 
 	return 0;
 }
 
-#define NONE (-1)
-#define NUM_SDL_CODES	(SDLK_UNDO + 1)
-
-static int16_t sdl_to_keycode[NUM_SDL_CODES] = {
-	/* 0 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, KEY_BACKSPACE, KEY_TAB,
-	NONE, NONE, NONE, KEY_ENTER, NONE,
-	NONE, NONE, NONE, NONE, KEY_POWER,	/* use PAUSE as POWER */
-
-	/* 20 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, KEY_ESC, NONE, NONE,
-	NONE, NONE, KEY_SPACE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 40 */
-	NONE, NONE, NONE, NONE, KEY_COMMA,
-	KEY_MINUS, KEY_DOT, KEY_SLASH, KEY_0, KEY_1,
-	KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
-	KEY_7, KEY_8, KEY_9, NONE, KEY_SEMICOLON,
-
-	/* 60 */
-	NONE, KEY_EQUAL, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 80 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, KEY_BACKSLASH, NONE, NONE,
-	NONE, KEY_GRAVE, KEY_A, KEY_B, KEY_C,
-
-	/* 100 */
-	KEY_D, KEY_E, KEY_F, KEY_G, KEY_H,
-	KEY_I, KEY_J, KEY_K, KEY_L, KEY_M,
-	KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R,
-	KEY_S, KEY_T, KEY_U, KEY_V, KEY_W,
-
-	/* 120 */
-	KEY_X, KEY_Y, KEY_Z, NONE, NONE,
-	NONE, NONE, KEY_DELETE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 140 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 160 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 180 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 200 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 220 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 240 */
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-	NONE, KEY_KP0, KEY_KP1, KEY_KP2, KEY_KP3,
-
-	/* 260 */
-	KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8,
-	KEY_KP9, KEY_KPDOT, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS,
-	KEY_KPPLUS, KEY_KPENTER, KEY_KPEQUAL, KEY_UP, KEY_DOWN,
-	KEY_RIGHT, KEY_LEFT, KEY_INSERT, KEY_HOME, KEY_END,
-
-	/* 280 */
-	KEY_PAGEUP, KEY_PAGEDOWN, KEY_F1, KEY_F2, KEY_F3,
-	KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8,
-	KEY_F9, KEY_F10, KEY_F11, KEY_F12, NONE,
-	NONE, NONE, NONE, NONE, NONE,
-
-	/* 300 */
-	KEY_NUMLOCK, KEY_CAPSLOCK, KEY_SCROLLLOCK, KEY_RIGHTSHIFT,
-		KEY_LEFTSHIFT,
-	KEY_RIGHTCTRL, KEY_LEFTCTRL, KEY_RIGHTALT, KEY_LEFTALT, KEY_RIGHTMETA,
-	KEY_LEFTMETA, NONE, KEY_FN, NONE, KEY_COMPOSE,
-	NONE, KEY_PRINT, KEY_SYSRQ, KEY_PAUSE, NONE,
-
-	/* 320 */
-	NONE, NONE, NONE,
+static const unsigned short sdl_to_keycode[SDL_NUM_SCANCODES] = {
+	[SDL_SCANCODE_A]	= KEY_A,
+	[SDL_SCANCODE_B]	= KEY_B,
+	[SDL_SCANCODE_C]	= KEY_C,
+	[SDL_SCANCODE_D]	= KEY_D,
+	[SDL_SCANCODE_E]	= KEY_E,
+	[SDL_SCANCODE_F]	= KEY_F,
+	[SDL_SCANCODE_G]	= KEY_G,
+	[SDL_SCANCODE_H]	= KEY_H,
+	[SDL_SCANCODE_I]	= KEY_I,
+	[SDL_SCANCODE_J]	= KEY_J,
+	[SDL_SCANCODE_K]	= KEY_K,
+	[SDL_SCANCODE_L]	= KEY_L,
+	[SDL_SCANCODE_M]	= KEY_M,
+	[SDL_SCANCODE_N]	= KEY_N,
+	[SDL_SCANCODE_O]	= KEY_O,
+	[SDL_SCANCODE_P]	= KEY_P,
+	[SDL_SCANCODE_Q]	= KEY_Q,
+	[SDL_SCANCODE_R]	= KEY_R,
+	[SDL_SCANCODE_S]	= KEY_S,
+	[SDL_SCANCODE_T]	= KEY_T,
+	[SDL_SCANCODE_U]	= KEY_U,
+	[SDL_SCANCODE_V]	= KEY_V,
+	[SDL_SCANCODE_W]	= KEY_W,
+	[SDL_SCANCODE_X]	= KEY_X,
+	[SDL_SCANCODE_Y]	= KEY_Y,
+	[SDL_SCANCODE_Z]	= KEY_Z,
+
+	[SDL_SCANCODE_1]	= KEY_1,
+	[SDL_SCANCODE_2]	= KEY_2,
+	[SDL_SCANCODE_3]	= KEY_3,
+	[SDL_SCANCODE_4]	= KEY_4,
+	[SDL_SCANCODE_5]	= KEY_5,
+	[SDL_SCANCODE_6]	= KEY_6,
+	[SDL_SCANCODE_7]	= KEY_7,
+	[SDL_SCANCODE_8]	= KEY_8,
+	[SDL_SCANCODE_9]	= KEY_9,
+	[SDL_SCANCODE_0]	= KEY_0,
+
+	[SDL_SCANCODE_RETURN]	= KEY_ENTER,
+	[SDL_SCANCODE_ESCAPE]	= KEY_ESC,
+	[SDL_SCANCODE_BACKSPACE]	= KEY_BACKSPACE,
+	[SDL_SCANCODE_TAB]	= KEY_TAB,
+	[SDL_SCANCODE_SPACE]	= KEY_SPACE,
+
+	[SDL_SCANCODE_MINUS]	= KEY_MINUS,
+	[SDL_SCANCODE_EQUALS]	= KEY_EQUAL,
+	[SDL_SCANCODE_BACKSLASH]	= KEY_BACKSLASH,
+	[SDL_SCANCODE_SEMICOLON]	= KEY_SEMICOLON,
+	[SDL_SCANCODE_APOSTROPHE]	= KEY_APOSTROPHE,
+	[SDL_SCANCODE_GRAVE]	= KEY_GRAVE,
+	[SDL_SCANCODE_COMMA]	= KEY_COMMA,
+	[SDL_SCANCODE_PERIOD]	= KEY_DOT,
+	[SDL_SCANCODE_SLASH]	= KEY_SLASH,
+
+	[SDL_SCANCODE_CAPSLOCK]	= KEY_CAPSLOCK,
+
+	[SDL_SCANCODE_F1]	= KEY_F1,
+	[SDL_SCANCODE_F2]	= KEY_F2,
+	[SDL_SCANCODE_F3]	= KEY_F3,
+	[SDL_SCANCODE_F4]	= KEY_F4,
+	[SDL_SCANCODE_F5]	= KEY_F5,
+	[SDL_SCANCODE_F6]	= KEY_F6,
+	[SDL_SCANCODE_F7]	= KEY_F7,
+	[SDL_SCANCODE_F8]	= KEY_F8,
+	[SDL_SCANCODE_F9]	= KEY_F9,
+	[SDL_SCANCODE_F10]	= KEY_F10,
+	[SDL_SCANCODE_F11]	= KEY_F11,
+	[SDL_SCANCODE_F12]	= KEY_F12,
+
+	[SDL_SCANCODE_PRINTSCREEN]	= KEY_PRINT,
+	[SDL_SCANCODE_SCROLLLOCK]	= KEY_SCROLLLOCK,
+	[SDL_SCANCODE_PAUSE]	= KEY_PAUSE,
+	[SDL_SCANCODE_INSERT]	= KEY_INSERT,
+	[SDL_SCANCODE_HOME]	= KEY_HOME,
+	[SDL_SCANCODE_PAGEUP]	= KEY_PAGEUP,
+	[SDL_SCANCODE_DELETE]	= KEY_DELETE,
+	[SDL_SCANCODE_END]	= KEY_END,
+	[SDL_SCANCODE_PAGEDOWN]	= KEY_PAGEDOWN,
+	[SDL_SCANCODE_RIGHT]	= KEY_RIGHT,
+	[SDL_SCANCODE_LEFT]	= KEY_LEFT,
+	[SDL_SCANCODE_DOWN]	= KEY_DOWN,
+	[SDL_SCANCODE_UP]	= KEY_UP,
+
+	[SDL_SCANCODE_NUMLOCKCLEAR]	= KEY_NUMLOCK,
+	[SDL_SCANCODE_KP_DIVIDE]	= KEY_KPSLASH,
+	[SDL_SCANCODE_KP_MULTIPLY]	= KEY_KPASTERISK,
+	[SDL_SCANCODE_KP_MINUS]	= KEY_KPMINUS,
+	[SDL_SCANCODE_KP_PLUS]	= KEY_KPPLUS,
+	[SDL_SCANCODE_KP_ENTER]	= KEY_KPENTER,
+	[SDL_SCANCODE_KP_1]	= KEY_KP1,
+	[SDL_SCANCODE_KP_2]	= KEY_KP2,
+	[SDL_SCANCODE_KP_3]	= KEY_KP3,
+	[SDL_SCANCODE_KP_4]	= KEY_KP4,
+	[SDL_SCANCODE_KP_5]	= KEY_KP5,
+	[SDL_SCANCODE_KP_6]	= KEY_KP6,
+	[SDL_SCANCODE_KP_7]	= KEY_KP7,
+	[SDL_SCANCODE_KP_8]	= KEY_KP8,
+	[SDL_SCANCODE_KP_9]	= KEY_KP9,
+	[SDL_SCANCODE_KP_0]	= KEY_KP0,
+	[SDL_SCANCODE_KP_PERIOD]	= KEY_KPDOT,
+
+	[SDL_SCANCODE_KP_EQUALS]	= KEY_KPEQUAL,
+	[SDL_SCANCODE_KP_COMMA]	= KEY_KPCOMMA,
+
+	[SDL_SCANCODE_SYSREQ]	= KEY_SYSRQ,
 };
 
 int sandbox_sdl_scan_keys(int key[], int max_keys)
 {
-	Uint8 *keystate;
+	const Uint8 *keystate;
+	int num_keys;
 	int i, count;
 
 	sandbox_sdl_poll_events();
-	keystate = SDL_GetKeyState(NULL);
-	for (i = count = 0; i < NUM_SDL_CODES; i++) {
-		if (count >= max_keys)
-			break;
-		else if (keystate[i])
-			key[count++] = sdl_to_keycode[i];
+	keystate = SDL_GetKeyboardState(&num_keys);
+	for (i = count = 0; i < num_keys; i++) {
+		if (count < max_keys && keystate[i]) {
+			int keycode = sdl_to_keycode[i];
+
+			if (keycode)
+				key[count++] = keycode;
+		}
 	}
 
 	return count;
@@ -256,6 +318,7 @@ void sandbox_sdl_fill_audio(void *udata, Uint8 *stream, int len)
 {
 	struct buf_info *buf;
 	int avail;
+	bool have_data = false;
 	int i;
 
 	for (i = 0; i < 2; i++) {
@@ -267,6 +330,7 @@ void sandbox_sdl_fill_audio(void *udata, Uint8 *stream, int len)
 		}
 		if (avail > len)
 			avail = len;
+		have_data = true;
 
 		SDL_MixAudio(stream, buf->data + buf->pos, avail,
 			     SDL_MIX_MAXVOLUME);
@@ -279,11 +343,12 @@ void sandbox_sdl_fill_audio(void *udata, Uint8 *stream, int len)
 		else
 			break;
 	}
+	sdl.stopping = !have_data;
 }
 
 int sandbox_sdl_sound_init(int rate, int channels)
 {
-	SDL_AudioSpec wanted;
+	SDL_AudioSpec wanted, have;
 	int i;
 
 	if (sandbox_sdl_ensure_init())
@@ -316,19 +381,23 @@ int sandbox_sdl_sound_init(int rate, int channels)
 	}
 
 	if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
-		printf("Unable to initialize SDL audio: %s\n", SDL_GetError());
+		printf("Unable to initialise SDL audio: %s\n", SDL_GetError());
 		goto err;
 	}
 
 	/* Open the audio device, forcing the desired format */
-	if (SDL_OpenAudio(&wanted, NULL) < 0) {
+	if (SDL_OpenAudio(&wanted, &have) < 0) {
 		printf("Couldn't open audio: %s\n", SDL_GetError());
 		goto err;
 	}
+	if (have.format != wanted.format) {
+		printf("Couldn't select required audio format\n");
+		goto err;
+	}
 	sdl.audio_active = true;
 	sdl.sample_rate = wanted.freq;
 	sdl.cur_buf = 0;
-	sdl.running = 0;
+	sdl.running = false;
 
 	return 0;
 
@@ -359,7 +428,8 @@ int sandbox_sdl_sound_play(const void *data, uint size)
 	buf->pos = 0;
 	if (!sdl.running) {
 		SDL_PauseAudio(0);
-		sdl.running = 1;
+		sdl.running = true;
+		sdl.stopping = false;
 	}
 
 	return 0;
@@ -368,8 +438,12 @@ int sandbox_sdl_sound_play(const void *data, uint size)
 int sandbox_sdl_sound_stop(void)
 {
 	if (sdl.running) {
+		while (!sdl.stopping)
+			SDL_Delay(100);
+
 		SDL_PauseAudio(1);
 		sdl.running = 0;
+		sdl.stopping = false;
 	}
 
 	return 0;
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index fff9cbd..b6ff5c3 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -8,14 +8,46 @@
 #include <errno.h>
 #include <os.h>
 #include <cli.h>
-#include <malloc.h>
+#include <sort.h>
 #include <asm/getopt.h>
 #include <asm/io.h>
+#include <asm/malloc.h>
 #include <asm/sections.h>
 #include <asm/state.h>
+#include <linux/ctype.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+/* Compare two options so that they can be sorted into alphabetical order */
+static int h_compare_opt(const void *p1, const void *p2)
+{
+	const struct sandbox_cmdline_option *opt1 = p1;
+	const struct sandbox_cmdline_option *opt2 = p2;
+	const char *str1, *str2;
+	char flag1[2], flag2[2];
+
+	opt1 = *(struct sandbox_cmdline_option **)p1;
+	opt2 = *(struct sandbox_cmdline_option **)p2;
+	flag1[1] = '\0';
+	flag2[1] = '\0';
+
+	*flag1 = opt1->flag_short < 0x100 ? opt1->flag_short : '\0';
+	*flag2 = opt2->flag_short < 0x100 ? opt2->flag_short : '\0';
+
+	str1 = *flag1 ? flag1 : opt1->flag;
+	str2 = *flag2 ? flag2 : opt2->flag;
+
+	/*
+	 * Force lower-case flags to come before upper-case ones. We only
+	 * support upper-case for short flags.
+	 */
+	if (isalpha(*str1) && isalpha(*str2) &&
+	    tolower(*str1) == tolower(*str2))
+		return isupper(*str1) - isupper(*str2);
+
+	return strcasecmp(str1, str2);
+}
+
 int sandbox_early_getopt_check(void)
 {
 	struct sandbox_state *state = state_get_current();
@@ -23,6 +55,8 @@ int sandbox_early_getopt_check(void)
 	size_t num_options = __u_boot_sandbox_option_count();
 	size_t i;
 	int max_arg_len, max_noarg_len;
+	struct sandbox_cmdline_option **sorted_opt;
+	int size;
 
 	/* parse_err will be a string of the faulting option */
 	if (!state->parse_err)
@@ -45,8 +79,18 @@ int sandbox_early_getopt_check(void)
 		max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
 	max_noarg_len = max_arg_len + 7;
 
+	/* Sort the options */
+	size = sizeof(*sorted_opt) * num_options;
+	sorted_opt = malloc(size);
+	if (!sorted_opt) {
+		printf("No memory to sort options\n");
+		os_exit(1);
+	}
+	memcpy(sorted_opt, sb_opt, size);
+	qsort(sorted_opt, num_options, sizeof(*sorted_opt), h_compare_opt);
+
 	for (i = 0; i < num_options; ++i) {
-		struct sandbox_cmdline_option *opt = sb_opt[i];
+		struct sandbox_cmdline_option *opt = sorted_opt[i];
 
 		/* first output the short flag if it has one */
 		if (opt->flag_short >= 0x100)
@@ -137,7 +181,7 @@ static int sandbox_cmdline_cb_default_fdt(struct sandbox_state *state,
 	int len;
 
 	len = strlen(state->argv[0]) + strlen(fmt) + 1;
-	fname = os_malloc(len);
+	fname = malloc(len);
 	if (!fname)
 		return -ENOMEM;
 	snprintf(fname, len, fmt, state->argv[0]);
@@ -157,7 +201,7 @@ static int sandbox_cmdline_cb_test_fdt(struct sandbox_state *state,
 	int len;
 
 	len = strlen(state->argv[0]) + strlen(fmt) + 1;
-	fname = os_malloc(len);
+	fname = malloc(len);
 	if (!fname)
 		return -ENOMEM;
 	strcpy(fname, state->argv[0]);
@@ -264,6 +308,16 @@ static int sandbox_cmdline_cb_show_lcd(struct sandbox_state *state,
 SANDBOX_CMDLINE_OPT_SHORT(show_lcd, 'l', 0,
 			  "Show the sandbox LCD display");
 
+static int sandbox_cmdline_cb_double_lcd(struct sandbox_state *state,
+					 const char *arg)
+{
+	state->double_lcd = true;
+
+	return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(double_lcd, 'K', 0,
+			  "Double the LCD display size in each direction");
+
 static const char *term_args[STATE_TERM_COUNT] = {
 	"raw-with-sigs",
 	"raw",
@@ -319,13 +373,6 @@ static int sandbox_cmdline_cb_show_of_platdata(struct sandbox_state *state,
 }
 SANDBOX_CMDLINE_OPT(show_of_platdata, 0, "Show of-platdata in SPL");
 
-int board_run_command(const char *cmdline)
-{
-	printf("## Commands are disabled. Please enable CONFIG_CMDLINE.\n");
-
-	return 1;
-}
-
 static void setup_ram_buf(struct sandbox_state *state)
 {
 	/* Zero the RAM buffer if we didn't read it, to keep valgrind happy */
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index cd46e00..a347cec 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -7,6 +7,7 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <os.h>
+#include <asm/malloc.h>
 #include <asm/state.h>
 
 /* Main state record for the sandbox */
@@ -16,28 +17,28 @@ static struct sandbox_state *state;	/* Pointer to current state record */
 static int state_ensure_space(int extra_size)
 {
 	void *blob = state->state_fdt;
-	int used, size, free;
+	int used, size, free_bytes;
 	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)
+	free_bytes = size - used;
+	if (free_bytes > extra_size)
 		return 0;
 
 	size = used + extra_size;
-	buf = os_malloc(size);
+	buf = malloc(size);
 	if (!buf)
 		return -ENOMEM;
 
 	ret = fdt_open_into(blob, buf, size);
 	if (ret) {
-		os_free(buf);
+		free(buf);
 		return -EIO;
 	}
 
-	os_free(blob);
+	free(blob);
 	state->state_fdt = buf;
 	return 0;
 }
@@ -53,7 +54,7 @@ static int state_read_file(struct sandbox_state *state, const char *fname)
 		printf("Cannot find sandbox state file '%s'\n", fname);
 		return -ENOENT;
 	}
-	state->state_fdt = os_malloc(size);
+	state->state_fdt = malloc(size);
 	if (!state->state_fdt) {
 		puts("No memory to read sandbox state\n");
 		return -ENOMEM;
@@ -75,7 +76,7 @@ static int state_read_file(struct sandbox_state *state, const char *fname)
 err_read:
 	os_close(fd);
 err_open:
-	os_free(state->state_fdt);
+	free(state->state_fdt);
 	state->state_fdt = NULL;
 
 	return ret;
@@ -242,7 +243,7 @@ int sandbox_write_state(struct sandbox_state *state, const char *fname)
 	/* Create a state FDT if we don't have one */
 	if (!state->state_fdt) {
 		size = 0x4000;
-		state->state_fdt = os_malloc(size);
+		state->state_fdt = malloc(size);
 		if (!state->state_fdt) {
 			puts("No memory to create FDT\n");
 			return -ENOMEM;
@@ -300,7 +301,7 @@ int sandbox_write_state(struct sandbox_state *state, const char *fname)
 err_write:
 	os_close(fd);
 err_create:
-	os_free(state->state_fdt);
+	free(state->state_fdt);
 
 	return ret;
 }
@@ -418,7 +419,7 @@ int state_uninit(void)
 		os_unlink(state->jumped_fname);
 
 	if (state->state_fdt)
-		os_free(state->state_fdt);
+		free(state->state_fdt);
 	memset(state, '\0', sizeof(*state));
 
 	return 0;
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index 7bf144f..7cd56c1 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -83,6 +83,7 @@
 		compatible = "sandbox,lcd-sdl";
 		xres = <1366>;
 		yres = <768>;
+		log2-depth = <5>;
 	};
 
 	leds {
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index c228447..4a27793 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -816,6 +816,9 @@
 	chosen {
 		#address-cells = <1>;
 		#size-cells = <1>;
+		setting = "sunrise ohoka";
+		other-node = "/some-bus/c-test@5";
+		int-values = <0x1937 72993>;
 		chosen-test {
 			compatible = "denx,u-boot-fdt-test";
 			reg = <9 1>;
diff --git a/arch/sandbox/include/asm/malloc.h b/arch/sandbox/include/asm/malloc.h
new file mode 100644
index 0000000..a1467b5
--- /dev/null
+++ b/arch/sandbox/include/asm/malloc.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Sandbox access to system malloc (i.e. not U-Boot's)
+ *
+ * Copyright 2020 Google LLC
+ */
+
+#ifndef __ASM_MALLOC_H
+
+void *malloc(size_t size);
+void free(void *ptr);
+void *calloc(size_t nmemb, size_t size);
+void *realloc(void *ptr, size_t size);
+void *reallocarray(void *ptr, size_t nmemb, size_t size);
+
+/*
+ * This header allows calling the system allocation routines. It makes no
+ * sense to also include U-Boot's malloc.h since that redfines malloc to
+ * have a 'dl' prefix. These two implementations cannot be mixed and matched
+ * in the same file.
+ */
+#ifdef __MALLOC_H__
+#error "This sandbox header file cannot be included with malloc.h"
+#endif
+
+#endif
diff --git a/arch/sandbox/include/asm/sdl.h b/arch/sandbox/include/asm/sdl.h
index c45dbdd..47fc488 100644
--- a/arch/sandbox/include/asm/sdl.h
+++ b/arch/sandbox/include/asm/sdl.h
@@ -17,10 +17,13 @@
  * @height	Window height in pixels
  * @log2_bpp:	Log to base 2 of the number of bits per pixel. So a 32bpp
  *		display will pass 5, since 2*5 = 32
+ * @double_size: true to double the visible size in each direction for high-DPI
+ *		displays
  * @return 0 if OK, -ENODEV if no device, -EIO if SDL failed to initialize
  *		and -EPERM if the video failed to come up.
  */
-int sandbox_sdl_init_display(int width, int height, int log2_bpp);
+int sandbox_sdl_init_display(int width, int height, int log2_bpp,
+			     bool double_size);
 
 /**
  * sandbox_sdl_sync() - Sync current U-Boot LCD frame buffer to SDL
@@ -78,8 +81,8 @@ int sandbox_sdl_sound_stop(void);
 int sandbox_sdl_sound_init(int rate, int channels);
 
 #else
-static inline int sandbox_sdl_init_display(int width, int height,
-					    int log2_bpp)
+static inline int sandbox_sdl_init_display(int width, int height, int log2_bpp,
+					   bool double_size)
 {
 	return -ENODEV;
 }
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index ad3e94b..705645d 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -83,6 +83,7 @@ struct sandbox_state {
 	bool write_state;		/* Write sandbox state on exit */
 	bool ignore_missing_state_on_read;	/* No error if state missing */
 	bool show_lcd;			/* Show LCD on start-up */
+	bool double_lcd;		/* Double display size for high-DPI */
 	enum sysreset_t last_sysreset;	/* Last system reset type */
 	bool sysreset_allowed[SYSRESET_COUNT];	/* Allowed system reset types */
 	enum state_terminal_raw term_raw;	/* Terminal raw/cooked */
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h
index 7775794..7f99d07 100644
--- a/arch/sandbox/include/asm/test.h
+++ b/arch/sandbox/include/asm/test.h
@@ -170,6 +170,13 @@ int sandbox_get_i2s_sum(struct udevice *dev);
 int sandbox_get_setup_called(struct udevice *dev);
 
 /**
+ * sandbox_get_sound_active() - Returns whether sound play is in progress
+ *
+ * @return true if active, false if not
+ */
+int sandbox_get_sound_active(struct udevice *dev);
+
+/**
  * sandbox_get_sound_sum() - Read back the sum of the sound data so far
  *
  * This data is provided to the sandbox driver by the sound play() method.