11  * based on mbus driver from Linux
56 #include <linux/mbus.h>
108 static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus,  in mvebu_mbus_read_window()  argument
113 	void __iomem *addr = mbus->mbuswins_base +  in mvebu_mbus_read_window()
114 		mbus->soc->win_cfg_offset(win);  in mvebu_mbus_read_window()
135 		if (win < mbus->soc->num_remappable_wins) {  in mvebu_mbus_read_window()
145 static void mvebu_mbus_disable_window(struct mvebu_mbus_state *mbus,  in mvebu_mbus_disable_window()  argument
150 	addr = mbus->mbuswins_base + mbus->soc->win_cfg_offset(win);  in mvebu_mbus_disable_window()
154 	if (win < mbus->soc->num_remappable_wins) {  in mvebu_mbus_disable_window()
161 static int mvebu_mbus_window_is_free(struct mvebu_mbus_state *mbus,  in mvebu_mbus_window_is_free()  argument
164 	void __iomem *addr = mbus->mbuswins_base +  in mvebu_mbus_window_is_free()
165 		mbus->soc->win_cfg_offset(win);  in mvebu_mbus_window_is_free()
174 static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus,  in mvebu_mbus_window_conflicts()  argument
181 	for (win = 0; win < mbus->soc->num_wins; win++) {  in mvebu_mbus_window_conflicts()
187 		mvebu_mbus_read_window(mbus, win,  in mvebu_mbus_window_conflicts()
213 static int mvebu_mbus_find_window(struct mvebu_mbus_state *mbus,  in mvebu_mbus_find_window()  argument
218 	for (win = 0; win < mbus->soc->num_wins; win++) {  in mvebu_mbus_find_window()
223 		mvebu_mbus_read_window(mbus, win,  in mvebu_mbus_find_window()
237 static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus,  in mvebu_mbus_setup_window()  argument
242 	void __iomem *addr = mbus->mbuswins_base +  in mvebu_mbus_setup_window()
243 		mbus->soc->win_cfg_offset(win);  in mvebu_mbus_setup_window()
253 	if (win < mbus->soc->num_remappable_wins) {  in mvebu_mbus_setup_window()
265 static int mvebu_mbus_alloc_window(struct mvebu_mbus_state *mbus,  in mvebu_mbus_alloc_window()  argument
273 		for (win = mbus->soc->num_remappable_wins;  in mvebu_mbus_alloc_window()
274 		     win < mbus->soc->num_wins; win++)  in mvebu_mbus_alloc_window()
275 			if (mvebu_mbus_window_is_free(mbus, win))  in mvebu_mbus_alloc_window()
276 				return mvebu_mbus_setup_window(mbus, win, base,  in mvebu_mbus_alloc_window()
282 	for (win = 0; win < mbus->soc->num_wins; win++)  in mvebu_mbus_alloc_window()
283 		if (mvebu_mbus_window_is_free(mbus, win))  in mvebu_mbus_alloc_window()
284 			return mvebu_mbus_setup_window(mbus, win, base, size,  in mvebu_mbus_alloc_window()
319 static void mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)  in mvebu_mbus_default_setup_cpu_target()  argument
327 		u32 base = readl(mbus->sdramwins_base + DDR_BASE_CS_OFF(i));  in mvebu_mbus_default_setup_cpu_target()
328 		u32 size = readl(mbus->sdramwins_base + DDR_SIZE_CS_OFF(i));  in mvebu_mbus_default_setup_cpu_target()
409 static void mvebu_mbus_get_lowest_base(struct mvebu_mbus_state *mbus,  in mvebu_mbus_get_lowest_base()  argument
415 	for (win = 0; win < mbus->soc->num_wins; win++) {  in mvebu_mbus_get_lowest_base()
421 		mvebu_mbus_read_window(mbus, win,  in mvebu_mbus_get_lowest_base()
433 static void mvebu_config_mbus_bridge(struct mvebu_mbus_state *mbus)  in mvebu_config_mbus_bridge()  argument
439 	/* Set MBUS bridge base/ctrl */  in mvebu_config_mbus_bridge()
456 int mbus_dt_setup_win(struct mvebu_mbus_state *mbus,  in mbus_dt_setup_win()  argument
459 	if (!mvebu_mbus_window_conflicts(mbus, base, size, target, attr)) {  in mbus_dt_setup_win()
466 	 * In U-Boot we first try to add the mbus window to the remap windows.  in mbus_dt_setup_win()
469 	if (mvebu_mbus_alloc_window(mbus, base, size, base, target, attr)) {  in mbus_dt_setup_win()
470 		if (mvebu_mbus_alloc_window(mbus, base, size,  in mbus_dt_setup_win()
476 	 * Re-configure the mbus bridge registers each time this function  in mbus_dt_setup_win()
480 	mvebu_config_mbus_bridge(mbus);  in mbus_dt_setup_win()