80 struct devbus {  struct
86 static int get_timing_param_ps(struct devbus *devbus,  in get_timing_param_ps()  argument
96 		dev_err(devbus->dev, "%pOF has no '%s' property\n",  in get_timing_param_ps()
101 	*ticks = (time_ps + devbus->tick_ps - 1) / devbus->tick_ps;  in get_timing_param_ps()
103 	dev_dbg(devbus->dev, "%s: %u ps -> 0x%x\n",  in get_timing_param_ps()
108 static int devbus_get_timing_params(struct devbus *devbus,  in devbus_get_timing_params()  argument
117 		dev_err(devbus->dev,  in devbus_get_timing_params()
132 		dev_err(devbus->dev, "invalid bus width %d\n", r->bus_width);  in devbus_get_timing_params()
136 	err = get_timing_param_ps(devbus, node, "devbus,badr-skew-ps",  in devbus_get_timing_params()
141 	err = get_timing_param_ps(devbus, node, "devbus,turn-off-ps",  in devbus_get_timing_params()
146 	err = get_timing_param_ps(devbus, node, "devbus,acc-first-ps",  in devbus_get_timing_params()
151 	err = get_timing_param_ps(devbus, node, "devbus,acc-next-ps",  in devbus_get_timing_params()
156 	if (of_device_is_compatible(devbus->dev->of_node, "marvell,mvebu-devbus")) {  in devbus_get_timing_params()
157 		err = get_timing_param_ps(devbus, node, "devbus,rd-setup-ps",  in devbus_get_timing_params()
162 		err = get_timing_param_ps(devbus, node, "devbus,rd-hold-ps",  in devbus_get_timing_params()
170 			dev_err(devbus->dev,  in devbus_get_timing_params()
177 	err = get_timing_param_ps(devbus, node, "devbus,ale-wr-ps",  in devbus_get_timing_params()
182 	err = get_timing_param_ps(devbus, node, "devbus,wr-low-ps",  in devbus_get_timing_params()
187 	err = get_timing_param_ps(devbus, node, "devbus,wr-high-ps",  in devbus_get_timing_params()
195 static void devbus_orion_set_timing_params(struct devbus *devbus,  in devbus_orion_set_timing_params()  argument
225 	writel(value, devbus->base);  in devbus_orion_set_timing_params()
228 static void devbus_armada_set_timing_params(struct devbus *devbus,  in devbus_armada_set_timing_params()  argument
244 	dev_dbg(devbus->dev, "read parameters register 0x%p = 0x%x\n",  in devbus_armada_set_timing_params()
245 		devbus->base + ARMADA_READ_PARAM_OFFSET,  in devbus_armada_set_timing_params()
248 	writel(value, devbus->base + ARMADA_READ_PARAM_OFFSET);  in devbus_armada_set_timing_params()
256 	dev_dbg(devbus->dev, "write parameters register: 0x%p = 0x%x\n",  in devbus_armada_set_timing_params()
257 		devbus->base + ARMADA_WRITE_PARAM_OFFSET,  in devbus_armada_set_timing_params()
260 	writel(value, devbus->base + ARMADA_WRITE_PARAM_OFFSET);  in devbus_armada_set_timing_params()
269 	struct devbus *devbus;  in mvebu_devbus_probe()  local
274 	devbus = devm_kzalloc(&pdev->dev, sizeof(struct devbus), GFP_KERNEL);  in mvebu_devbus_probe()
275 	if (!devbus)  in mvebu_devbus_probe()
278 	devbus->dev = dev;  in mvebu_devbus_probe()
279 	devbus->base = devm_platform_ioremap_resource(pdev, 0);  in mvebu_devbus_probe()
280 	if (IS_ERR(devbus->base))  in mvebu_devbus_probe()
281 		return PTR_ERR(devbus->base);  in mvebu_devbus_probe()
293 	devbus->tick_ps = 1000000000 / rate;  in mvebu_devbus_probe()
295 	dev_dbg(devbus->dev, "Setting timing parameter, tick is %lu ps\n",  in mvebu_devbus_probe()
296 		devbus->tick_ps);  in mvebu_devbus_probe()
300 		err = devbus_get_timing_params(devbus, node, &r, &w);  in mvebu_devbus_probe()
306 			devbus_orion_set_timing_params(devbus, node, &r, &w);  in mvebu_devbus_probe()
308 			devbus_armada_set_timing_params(devbus, node, &r, &w);  in mvebu_devbus_probe()