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8#include <common.h>
9#include <cpu_func.h>
10#include <dm.h>
11#include <dm/lists.h>
12#include <log.h>
13#include <zynqmp_firmware.h>
14#include <asm/cache.h>
15#include <asm/ptrace.h>
16
17#if defined(CONFIG_ZYNQMP_IPI)
18#include <mailbox.h>
19#include <asm/arch/sys_proto.h>
20
21#define PMUFW_PAYLOAD_ARG_CNT 8
22
23#define XST_PM_NO_ACCESS 2002L
24#define XST_PM_ALREADY_CONFIGURED 2009L
25
26struct zynqmp_power {
27 struct mbox_chan tx_chan;
28 struct mbox_chan rx_chan;
29} zynqmp_power = {};
30
31#define NODE_ID_LOCATION 5
32
33static unsigned int xpm_configobject[] = {
34
35
36 2,
37 1,
38 PM_CONFIG_OBJECT_TYPE_OVERLAY,
39
40
41
42 PM_CONFIG_SLAVE_SECTION_ID,
43 1,
44
45 0,
46 PM_SLAVE_FLAG_IS_SHAREABLE,
47 PM_CONFIG_IPI_PSU_CORTEXA53_0_MASK |
48 PM_CONFIG_IPI_PSU_CORTEXR5_0_MASK |
49 PM_CONFIG_IPI_PSU_CORTEXR5_1_MASK,
50};
51
52static unsigned int xpm_configobject_close[] = {
53
54
55 2,
56 1,
57 PM_CONFIG_OBJECT_TYPE_OVERLAY,
58
59
60 PM_CONFIG_SET_CONFIG_SECTION_ID,
61 0U,
62};
63
64int zynqmp_pmufw_config_close(void)
65{
66 zynqmp_pmufw_load_config_object(xpm_configobject_close,
67 sizeof(xpm_configobject_close));
68 return 0;
69}
70
71int zynqmp_pmufw_node(u32 id)
72{
73 static bool skip_config;
74 int ret;
75
76 if (skip_config)
77 return 0;
78
79
80 xpm_configobject[NODE_ID_LOCATION] = id;
81
82 ret = zynqmp_pmufw_load_config_object(xpm_configobject,
83 sizeof(xpm_configobject));
84
85 if (ret == XST_PM_NO_ACCESS && id == NODE_OCM_BANK_0)
86 skip_config = true;
87
88 return 0;
89}
90
91static int do_pm_probe(void)
92{
93 struct udevice *dev;
94 int ret;
95
96 ret = uclass_get_device_by_driver(UCLASS_FIRMWARE,
97 DM_DRIVER_GET(zynqmp_power),
98 &dev);
99 if (ret)
100 debug("%s: Probing device failed: %d\n", __func__, ret);
101
102 return ret;
103}
104
105static int ipi_req(const u32 *req, size_t req_len, u32 *res, size_t res_maxlen)
106{
107 struct zynqmp_ipi_msg msg;
108 int ret;
109 u32 buffer[PAYLOAD_ARG_CNT];
110
111 if (!res)
112 res = buffer;
113
114 if (req_len > PMUFW_PAYLOAD_ARG_CNT ||
115 res_maxlen > PMUFW_PAYLOAD_ARG_CNT)
116 return -EINVAL;
117
118 if (!(zynqmp_power.tx_chan.dev) || !(zynqmp_power.rx_chan.dev)) {
119 ret = do_pm_probe();
120 if (ret)
121 return ret;
122 }
123
124 debug("%s, Sending IPI message with ID: 0x%0x\n", __func__, req[0]);
125 msg.buf = (u32 *)req;
126 msg.len = req_len;
127 ret = mbox_send(&zynqmp_power.tx_chan, &msg);
128 if (ret) {
129 debug("%s: Sending message failed\n", __func__);
130 return ret;
131 }
132
133 msg.buf = res;
134 msg.len = res_maxlen;
135 ret = mbox_recv(&zynqmp_power.rx_chan, &msg, 100);
136 if (ret)
137 debug("%s: Receiving message failed\n", __func__);
138
139 return ret;
140}
141
142unsigned int zynqmp_firmware_version(void)
143{
144 int ret;
145 u32 ret_payload[PAYLOAD_ARG_CNT];
146 static u32 pm_api_version = ZYNQMP_PM_VERSION_INVALID;
147
148
149
150
151
152
153 if (pm_api_version == ZYNQMP_PM_VERSION_INVALID) {
154
155 ret = xilinx_pm_request(PM_GET_API_VERSION, 0, 0, 0, 0,
156 ret_payload);
157 if (ret)
158 panic("PMUFW is not found - Please load it!\n");
159
160 pm_api_version = ret_payload[1];
161 if (pm_api_version < ZYNQMP_PM_VERSION)
162 panic("PMUFW version error. Expected: v%d.%d\n",
163 ZYNQMP_PM_VERSION_MAJOR, ZYNQMP_PM_VERSION_MINOR);
164 }
165
166 return pm_api_version;
167};
168
169int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config, u32 value)
170{
171 int ret;
172
173 ret = xilinx_pm_request(PM_IOCTL, node, IOCTL_SET_GEM_CONFIG,
174 config, value, NULL);
175 if (ret)
176 printf("%s: node %d: set_gem_config %d failed\n",
177 __func__, node, config);
178
179 return ret;
180}
181
182int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value)
183{
184 int ret;
185
186 ret = xilinx_pm_request(PM_IOCTL, node, IOCTL_SET_SD_CONFIG,
187 config, value, NULL);
188 if (ret)
189 printf("%s: node %d: set_sd_config %d failed\n",
190 __func__, node, config);
191
192 return ret;
193}
194
195int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id)
196{
197 int ret;
198 u32 *bit_mask;
199 u32 ret_payload[PAYLOAD_ARG_CNT];
200
201
202 if (id >= 64 || (api_id != PM_IOCTL && api_id != PM_QUERY_DATA))
203 return -EINVAL;
204
205
206 ret = xilinx_pm_request(PM_FEATURE_CHECK, PM_FEATURE_CHECK, 0, 0, 0,
207 ret_payload);
208 if (ret)
209 return ret;
210
211
212 if ((ret_payload[1] & FIRMWARE_VERSION_MASK) == PM_API_VERSION_2) {
213
214
215
216
217
218 ret = xilinx_pm_request(PM_FEATURE_CHECK, api_id, 0, 0, 0,
219 ret_payload);
220 if (ret)
221 return ret;
222
223 bit_mask = &ret_payload[2];
224 if ((bit_mask[(id / 32)] & BIT((id % 32))) == 0)
225 return -EOPNOTSUPP;
226 } else {
227 return -ENODATA;
228 }
229
230 return 0;
231}
232
233
234
235
236
237
238
239
240
241int zynqmp_pmufw_load_config_object(const void *cfg_obj, size_t size)
242{
243 int err;
244 u32 ret_payload[PAYLOAD_ARG_CNT];
245
246 if (IS_ENABLED(CONFIG_SPL_BUILD))
247 printf("Loading new PMUFW cfg obj (%ld bytes)\n", size);
248
249 flush_dcache_range((ulong)cfg_obj, (ulong)(cfg_obj + size));
250
251 err = xilinx_pm_request(PM_SET_CONFIGURATION, (u32)(u64)cfg_obj, 0, 0,
252 0, ret_payload);
253 if (err == XST_PM_NO_ACCESS) {
254 if (((u32 *)cfg_obj)[NODE_ID_LOCATION] == NODE_OCM_BANK_0) {
255 printf("PMUFW: No permission to change config object\n");
256 return err;
257 }
258 return -EACCES;
259 }
260
261 if (err == XST_PM_ALREADY_CONFIGURED) {
262 debug("PMUFW Node is already configured\n");
263 return -ENODEV;
264 }
265
266 if (err)
267 printf("Cannot load PMUFW configuration object (%d)\n", err);
268
269 if (ret_payload[0])
270 printf("PMUFW returned 0x%08x status!\n", ret_payload[0]);
271
272 if ((err || ret_payload[0]) && IS_ENABLED(CONFIG_SPL_BUILD))
273 panic("PMUFW config object loading failed in EL3\n");
274
275 return 0;
276}
277
278static int zynqmp_power_probe(struct udevice *dev)
279{
280 int ret;
281
282 debug("%s, (dev=%p)\n", __func__, dev);
283
284 ret = mbox_get_by_name(dev, "tx", &zynqmp_power.tx_chan);
285 if (ret) {
286 debug("%s: Cannot find tx mailbox\n", __func__);
287 return ret;
288 }
289
290 ret = mbox_get_by_name(dev, "rx", &zynqmp_power.rx_chan);
291 if (ret) {
292 debug("%s: Cannot find rx mailbox\n", __func__);
293 return ret;
294 }
295
296 ret = zynqmp_firmware_version();
297 printf("PMUFW:\tv%d.%d\n",
298 ret >> ZYNQMP_PM_VERSION_MAJOR_SHIFT,
299 ret & ZYNQMP_PM_VERSION_MINOR_MASK);
300
301 if (IS_ENABLED(CONFIG_ARCH_ZYNQMP))
302 zynqmp_pmufw_node(NODE_OCM_BANK_0);
303
304 return 0;
305};
306
307static const struct udevice_id zynqmp_power_ids[] = {
308 { .compatible = "xlnx,zynqmp-power" },
309 { }
310};
311
312U_BOOT_DRIVER(zynqmp_power) = {
313 .name = "zynqmp_power",
314 .id = UCLASS_FIRMWARE,
315 .of_match = zynqmp_power_ids,
316 .probe = zynqmp_power_probe,
317};
318#endif
319
320int __maybe_unused xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2,
321 u32 arg3, u32 *ret_payload)
322{
323 debug("%s at EL%d, API ID: 0x%0x\n", __func__, current_el(), api_id);
324
325 if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3) {
326#if defined(CONFIG_ZYNQMP_IPI)
327
328
329
330
331
332 u32 regs[] = {api_id, arg0, arg1, arg2, arg3};
333 int ret;
334
335 if (api_id == PM_FPGA_LOAD) {
336
337 u32 temp = regs[1];
338
339 regs[1] = regs[2];
340 regs[2] = temp;
341 }
342
343 ret = ipi_req(regs, PAYLOAD_ARG_CNT, ret_payload,
344 PAYLOAD_ARG_CNT);
345 if (ret)
346 return ret;
347#else
348 return -EPERM;
349#endif
350 } else {
351
352
353
354
355 struct pt_regs regs;
356
357 regs.regs[0] = PM_SIP_SVC | api_id;
358 regs.regs[1] = ((u64)arg1 << 32) | arg0;
359 regs.regs[2] = ((u64)arg3 << 32) | arg2;
360
361 smc_call(®s);
362
363 if (ret_payload) {
364 ret_payload[0] = (u32)regs.regs[0];
365 ret_payload[1] = upper_32_bits(regs.regs[0]);
366 ret_payload[2] = (u32)regs.regs[1];
367 ret_payload[3] = upper_32_bits(regs.regs[1]);
368 ret_payload[4] = (u32)regs.regs[2];
369 }
370
371 }
372 return (ret_payload) ? ret_payload[0] : 0;
373}
374
375static const struct udevice_id zynqmp_firmware_ids[] = {
376 { .compatible = "xlnx,zynqmp-firmware" },
377 { .compatible = "xlnx,versal-firmware"},
378 { .compatible = "xlnx,versal-net-firmware"},
379 { }
380};
381
382static int zynqmp_firmware_bind(struct udevice *dev)
383{
384 int ret;
385 struct udevice *child;
386
387 if ((IS_ENABLED(CONFIG_SPL_BUILD) &&
388 IS_ENABLED(CONFIG_SPL_POWER_DOMAIN) &&
389 IS_ENABLED(CONFIG_ZYNQMP_POWER_DOMAIN)) ||
390 (!IS_ENABLED(CONFIG_SPL_BUILD) &&
391 IS_ENABLED(CONFIG_ZYNQMP_POWER_DOMAIN))) {
392 ret = device_bind_driver_to_node(dev, "zynqmp_power_domain",
393 "zynqmp_power_domain",
394 dev_ofnode(dev), &child);
395 if (ret) {
396 printf("zynqmp power domain driver is not bound: %d\n", ret);
397 return ret;
398 }
399 }
400
401 return dm_scan_fdt_dev(dev);
402}
403
404U_BOOT_DRIVER(zynqmp_firmware) = {
405 .id = UCLASS_FIRMWARE,
406 .name = "zynqmp_firmware",
407 .of_match = zynqmp_firmware_ids,
408 .bind = zynqmp_firmware_bind,
409};
410
