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e3260506 PC |
1 | /* |
2 | * Status and system control registers for Xilinx Zynq Platform | |
3 | * | |
4 | * Copyright (c) 2011 Michal Simek <monstr@monstr.eu> | |
5 | * Copyright (c) 2012 PetaLogix Pty Ltd. | |
6 | * Based on hw/arm_sysctl.c, written by Paul Brook | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * as published by the Free Software Foundation; either version | |
11 | * 2 of the License, or (at your option) any later version. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along | |
14 | * with this program; if not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
8ef94f0b | 17 | #include "qemu/osdep.h" |
1de7afc9 | 18 | #include "qemu/timer.h" |
54d31236 | 19 | #include "sysemu/runstate.h" |
83c9f4ca | 20 | #include "hw/sysbus.h" |
d6454270 | 21 | #include "migration/vmstate.h" |
03dd024f | 22 | #include "qemu/log.h" |
0b8fa32f | 23 | #include "qemu/module.h" |
a6b3ed23 | 24 | #include "hw/registerfields.h" |
38867cb7 | 25 | #include "hw/qdev-clock.h" |
db1015e9 | 26 | #include "qom/object.h" |
e3260506 | 27 | |
6954a1cd PC |
28 | #ifndef ZYNQ_SLCR_ERR_DEBUG |
29 | #define ZYNQ_SLCR_ERR_DEBUG 0 | |
30 | #endif | |
31 | ||
e3260506 | 32 | #define DB_PRINT(...) do { \ |
6954a1cd PC |
33 | if (ZYNQ_SLCR_ERR_DEBUG) { \ |
34 | fprintf(stderr, ": %s: ", __func__); \ | |
35 | fprintf(stderr, ## __VA_ARGS__); \ | |
36 | } \ | |
2562755e | 37 | } while (0) |
e3260506 PC |
38 | |
39 | #define XILINX_LOCK_KEY 0x767b | |
40 | #define XILINX_UNLOCK_KEY 0xdf0d | |
41 | ||
a6b3ed23 DH |
42 | REG32(SCL, 0x000) |
43 | REG32(LOCK, 0x004) | |
44 | REG32(UNLOCK, 0x008) | |
45 | REG32(LOCKSTA, 0x00c) | |
46 | ||
47 | REG32(ARM_PLL_CTRL, 0x100) | |
48 | REG32(DDR_PLL_CTRL, 0x104) | |
49 | REG32(IO_PLL_CTRL, 0x108) | |
38867cb7 DH |
50 | /* fields for [ARM|DDR|IO]_PLL_CTRL registers */ |
51 | FIELD(xxx_PLL_CTRL, PLL_RESET, 0, 1) | |
52 | FIELD(xxx_PLL_CTRL, PLL_PWRDWN, 1, 1) | |
53 | FIELD(xxx_PLL_CTRL, PLL_BYPASS_QUAL, 3, 1) | |
54 | FIELD(xxx_PLL_CTRL, PLL_BYPASS_FORCE, 4, 1) | |
55 | FIELD(xxx_PLL_CTRL, PLL_FPDIV, 12, 7) | |
a6b3ed23 DH |
56 | REG32(PLL_STATUS, 0x10c) |
57 | REG32(ARM_PLL_CFG, 0x110) | |
58 | REG32(DDR_PLL_CFG, 0x114) | |
59 | REG32(IO_PLL_CFG, 0x118) | |
60 | ||
61 | REG32(ARM_CLK_CTRL, 0x120) | |
62 | REG32(DDR_CLK_CTRL, 0x124) | |
63 | REG32(DCI_CLK_CTRL, 0x128) | |
64 | REG32(APER_CLK_CTRL, 0x12c) | |
65 | REG32(USB0_CLK_CTRL, 0x130) | |
66 | REG32(USB1_CLK_CTRL, 0x134) | |
67 | REG32(GEM0_RCLK_CTRL, 0x138) | |
68 | REG32(GEM1_RCLK_CTRL, 0x13c) | |
69 | REG32(GEM0_CLK_CTRL, 0x140) | |
70 | REG32(GEM1_CLK_CTRL, 0x144) | |
71 | REG32(SMC_CLK_CTRL, 0x148) | |
72 | REG32(LQSPI_CLK_CTRL, 0x14c) | |
73 | REG32(SDIO_CLK_CTRL, 0x150) | |
74 | REG32(UART_CLK_CTRL, 0x154) | |
38867cb7 DH |
75 | FIELD(UART_CLK_CTRL, CLKACT0, 0, 1) |
76 | FIELD(UART_CLK_CTRL, CLKACT1, 1, 1) | |
77 | FIELD(UART_CLK_CTRL, SRCSEL, 4, 2) | |
78 | FIELD(UART_CLK_CTRL, DIVISOR, 8, 6) | |
a6b3ed23 DH |
79 | REG32(SPI_CLK_CTRL, 0x158) |
80 | REG32(CAN_CLK_CTRL, 0x15c) | |
81 | REG32(CAN_MIOCLK_CTRL, 0x160) | |
82 | REG32(DBG_CLK_CTRL, 0x164) | |
83 | REG32(PCAP_CLK_CTRL, 0x168) | |
84 | REG32(TOPSW_CLK_CTRL, 0x16c) | |
db302f8f PC |
85 | |
86 | #define FPGA_CTRL_REGS(n, start) \ | |
a6b3ed23 DH |
87 | REG32(FPGA ## n ## _CLK_CTRL, (start)) \ |
88 | REG32(FPGA ## n ## _THR_CTRL, (start) + 0x4)\ | |
89 | REG32(FPGA ## n ## _THR_CNT, (start) + 0x8)\ | |
90 | REG32(FPGA ## n ## _THR_STA, (start) + 0xc) | |
91 | FPGA_CTRL_REGS(0, 0x170) | |
92 | FPGA_CTRL_REGS(1, 0x180) | |
93 | FPGA_CTRL_REGS(2, 0x190) | |
94 | FPGA_CTRL_REGS(3, 0x1a0) | |
95 | ||
96 | REG32(BANDGAP_TRIP, 0x1b8) | |
97 | REG32(PLL_PREDIVISOR, 0x1c0) | |
98 | REG32(CLK_621_TRUE, 0x1c4) | |
99 | ||
100 | REG32(PSS_RST_CTRL, 0x200) | |
101 | FIELD(PSS_RST_CTRL, SOFT_RST, 0, 1) | |
102 | REG32(DDR_RST_CTRL, 0x204) | |
103 | REG32(TOPSW_RESET_CTRL, 0x208) | |
104 | REG32(DMAC_RST_CTRL, 0x20c) | |
105 | REG32(USB_RST_CTRL, 0x210) | |
106 | REG32(GEM_RST_CTRL, 0x214) | |
107 | REG32(SDIO_RST_CTRL, 0x218) | |
108 | REG32(SPI_RST_CTRL, 0x21c) | |
109 | REG32(CAN_RST_CTRL, 0x220) | |
110 | REG32(I2C_RST_CTRL, 0x224) | |
111 | REG32(UART_RST_CTRL, 0x228) | |
112 | REG32(GPIO_RST_CTRL, 0x22c) | |
113 | REG32(LQSPI_RST_CTRL, 0x230) | |
114 | REG32(SMC_RST_CTRL, 0x234) | |
115 | REG32(OCM_RST_CTRL, 0x238) | |
116 | REG32(FPGA_RST_CTRL, 0x240) | |
117 | REG32(A9_CPU_RST_CTRL, 0x244) | |
118 | ||
119 | REG32(RS_AWDT_CTRL, 0x24c) | |
120 | REG32(RST_REASON, 0x250) | |
121 | ||
122 | REG32(REBOOT_STATUS, 0x258) | |
123 | REG32(BOOT_MODE, 0x25c) | |
124 | ||
125 | REG32(APU_CTRL, 0x300) | |
126 | REG32(WDT_CLK_SEL, 0x304) | |
127 | ||
128 | REG32(TZ_DMA_NS, 0x440) | |
129 | REG32(TZ_DMA_IRQ_NS, 0x444) | |
130 | REG32(TZ_DMA_PERIPH_NS, 0x448) | |
131 | ||
132 | REG32(PSS_IDCODE, 0x530) | |
133 | ||
134 | REG32(DDR_URGENT, 0x600) | |
135 | REG32(DDR_CAL_START, 0x60c) | |
136 | REG32(DDR_REF_START, 0x614) | |
137 | REG32(DDR_CMD_STA, 0x618) | |
138 | REG32(DDR_URGENT_SEL, 0x61c) | |
139 | REG32(DDR_DFI_STATUS, 0x620) | |
140 | ||
141 | REG32(MIO, 0x700) | |
db302f8f PC |
142 | #define MIO_LENGTH 54 |
143 | ||
a6b3ed23 DH |
144 | REG32(MIO_LOOPBACK, 0x804) |
145 | REG32(MIO_MST_TRI0, 0x808) | |
146 | REG32(MIO_MST_TRI1, 0x80c) | |
db302f8f | 147 | |
a6b3ed23 DH |
148 | REG32(SD0_WP_CD_SEL, 0x830) |
149 | REG32(SD1_WP_CD_SEL, 0x834) | |
db302f8f | 150 | |
a6b3ed23 DH |
151 | REG32(LVL_SHFTR_EN, 0x900) |
152 | REG32(OCM_CFG, 0x910) | |
db302f8f | 153 | |
a6b3ed23 | 154 | REG32(CPU_RAM, 0xa00) |
db302f8f | 155 | |
a6b3ed23 | 156 | REG32(IOU, 0xa30) |
db302f8f | 157 | |
a6b3ed23 | 158 | REG32(DMAC_RAM, 0xa50) |
db302f8f | 159 | |
a6b3ed23 DH |
160 | REG32(AFI0, 0xa60) |
161 | REG32(AFI1, 0xa6c) | |
162 | REG32(AFI2, 0xa78) | |
163 | REG32(AFI3, 0xa84) | |
db302f8f PC |
164 | #define AFI_LENGTH 3 |
165 | ||
a6b3ed23 | 166 | REG32(OCM, 0xa90) |
db302f8f | 167 | |
a6b3ed23 | 168 | REG32(DEVCI_RAM, 0xaa0) |
db302f8f | 169 | |
a6b3ed23 | 170 | REG32(CSG_RAM, 0xab0) |
db302f8f | 171 | |
a6b3ed23 DH |
172 | REG32(GPIOB_CTRL, 0xb00) |
173 | REG32(GPIOB_CFG_CMOS18, 0xb04) | |
174 | REG32(GPIOB_CFG_CMOS25, 0xb08) | |
175 | REG32(GPIOB_CFG_CMOS33, 0xb0c) | |
176 | REG32(GPIOB_CFG_HSTL, 0xb14) | |
177 | REG32(GPIOB_DRVR_BIAS_CTRL, 0xb18) | |
db302f8f | 178 | |
a6b3ed23 | 179 | REG32(DDRIOB, 0xb40) |
db302f8f | 180 | #define DDRIOB_LENGTH 14 |
db302f8f PC |
181 | |
182 | #define ZYNQ_SLCR_MMIO_SIZE 0x1000 | |
183 | #define ZYNQ_SLCR_NUM_REGS (ZYNQ_SLCR_MMIO_SIZE / 4) | |
e3260506 | 184 | |
e178113f | 185 | #define TYPE_ZYNQ_SLCR "xilinx-zynq_slcr" |
8063396b | 186 | OBJECT_DECLARE_SIMPLE_TYPE(ZynqSLCRState, ZYNQ_SLCR) |
a054e2c2 | 187 | |
db1015e9 | 188 | struct ZynqSLCRState { |
a054e2c2 AF |
189 | SysBusDevice parent_obj; |
190 | ||
e3260506 PC |
191 | MemoryRegion iomem; |
192 | ||
db302f8f | 193 | uint32_t regs[ZYNQ_SLCR_NUM_REGS]; |
38867cb7 DH |
194 | |
195 | Clock *ps_clk; | |
196 | Clock *uart0_ref_clk; | |
197 | Clock *uart1_ref_clk; | |
db1015e9 | 198 | }; |
e3260506 | 199 | |
38867cb7 DH |
200 | /* |
201 | * return the output frequency of ARM/DDR/IO pll | |
202 | * using input frequency and PLL_CTRL register | |
203 | */ | |
204 | static uint64_t zynq_slcr_compute_pll(uint64_t input, uint32_t ctrl_reg) | |
205 | { | |
206 | uint32_t mult = ((ctrl_reg & R_xxx_PLL_CTRL_PLL_FPDIV_MASK) >> | |
207 | R_xxx_PLL_CTRL_PLL_FPDIV_SHIFT); | |
208 | ||
209 | /* first, check if pll is bypassed */ | |
210 | if (ctrl_reg & R_xxx_PLL_CTRL_PLL_BYPASS_FORCE_MASK) { | |
211 | return input; | |
212 | } | |
213 | ||
214 | /* is pll disabled ? */ | |
215 | if (ctrl_reg & (R_xxx_PLL_CTRL_PLL_RESET_MASK | | |
216 | R_xxx_PLL_CTRL_PLL_PWRDWN_MASK)) { | |
217 | return 0; | |
218 | } | |
219 | ||
98a8cc74 PMD |
220 | /* Consider zero feedback as maximum divide ratio possible */ |
221 | if (!mult) { | |
222 | mult = 1 << R_xxx_PLL_CTRL_PLL_FPDIV_LENGTH; | |
223 | } | |
224 | ||
38867cb7 DH |
225 | /* frequency multiplier -> period division */ |
226 | return input / mult; | |
227 | } | |
228 | ||
229 | /* | |
230 | * return the output period of a clock given: | |
231 | * + the periods in an array corresponding to input mux selector | |
232 | * + the register xxx_CLK_CTRL value | |
233 | * + enable bit index in ctrl register | |
234 | * | |
235 | * This function makes the assumption that the ctrl_reg value is organized as | |
236 | * follows: | |
237 | * + bits[13:8] clock frequency divisor | |
238 | * + bits[5:4] clock mux selector (index in array) | |
239 | * + bits[index] clock enable | |
240 | */ | |
241 | static uint64_t zynq_slcr_compute_clock(const uint64_t periods[], | |
242 | uint32_t ctrl_reg, | |
243 | unsigned index) | |
244 | { | |
245 | uint32_t srcsel = extract32(ctrl_reg, 4, 2); /* bits [5:4] */ | |
246 | uint32_t divisor = extract32(ctrl_reg, 8, 6); /* bits [13:8] */ | |
247 | ||
248 | /* first, check if clock is disabled */ | |
249 | if (((ctrl_reg >> index) & 1u) == 0) { | |
250 | return 0; | |
251 | } | |
252 | ||
253 | /* | |
254 | * according to the Zynq technical ref. manual UG585 v1.12.2 in | |
255 | * Clocks chapter, section 25.10.1 page 705: | |
256 | * "The 6-bit divider provides a divide range of 1 to 63" | |
257 | * We follow here what is implemented in linux kernel and consider | |
258 | * the 0 value as a bypass (no division). | |
259 | */ | |
260 | /* frequency divisor -> period multiplication */ | |
261 | return periods[srcsel] * (divisor ? divisor : 1u); | |
262 | } | |
263 | ||
264 | /* | |
265 | * macro helper around zynq_slcr_compute_clock to avoid repeating | |
266 | * the register name. | |
267 | */ | |
268 | #define ZYNQ_COMPUTE_CLK(state, plls, reg, enable_field) \ | |
269 | zynq_slcr_compute_clock((plls), (state)->regs[reg], \ | |
270 | reg ## _ ## enable_field ## _SHIFT) | |
271 | ||
a89b91ad BM |
272 | static void zynq_slcr_compute_clocks_internal(ZynqSLCRState *s, uint64_t ps_clk) |
273 | { | |
274 | uint64_t io_pll = zynq_slcr_compute_pll(ps_clk, s->regs[R_IO_PLL_CTRL]); | |
275 | uint64_t arm_pll = zynq_slcr_compute_pll(ps_clk, s->regs[R_ARM_PLL_CTRL]); | |
276 | uint64_t ddr_pll = zynq_slcr_compute_pll(ps_clk, s->regs[R_DDR_PLL_CTRL]); | |
277 | ||
278 | uint64_t uart_mux[4] = {io_pll, io_pll, arm_pll, ddr_pll}; | |
279 | ||
280 | /* compute uartX reference clocks */ | |
281 | clock_set(s->uart0_ref_clk, | |
282 | ZYNQ_COMPUTE_CLK(s, uart_mux, R_UART_CLK_CTRL, CLKACT0)); | |
283 | clock_set(s->uart1_ref_clk, | |
284 | ZYNQ_COMPUTE_CLK(s, uart_mux, R_UART_CLK_CTRL, CLKACT1)); | |
285 | } | |
286 | ||
38867cb7 | 287 | /** |
9b4b4e51 | 288 | * Compute and set the outputs clocks periods. |
38867cb7 DH |
289 | * But do not propagate them further. Connected clocks |
290 | * will not receive any updates (See zynq_slcr_compute_clocks()) | |
291 | */ | |
292 | static void zynq_slcr_compute_clocks(ZynqSLCRState *s) | |
293 | { | |
294 | uint64_t ps_clk = clock_get(s->ps_clk); | |
295 | ||
296 | /* consider outputs clocks are disabled while in reset */ | |
297 | if (device_is_in_reset(DEVICE(s))) { | |
298 | ps_clk = 0; | |
299 | } | |
300 | ||
a89b91ad | 301 | zynq_slcr_compute_clocks_internal(s, ps_clk); |
38867cb7 DH |
302 | } |
303 | ||
304 | /** | |
305 | * Propagate the outputs clocks. | |
306 | * zynq_slcr_compute_clocks() should have been called before | |
307 | * to configure them. | |
308 | */ | |
309 | static void zynq_slcr_propagate_clocks(ZynqSLCRState *s) | |
e3260506 | 310 | { |
38867cb7 DH |
311 | clock_propagate(s->uart0_ref_clk); |
312 | clock_propagate(s->uart1_ref_clk); | |
313 | } | |
314 | ||
5ee0abed | 315 | static void zynq_slcr_ps_clk_callback(void *opaque, ClockEvent event) |
38867cb7 DH |
316 | { |
317 | ZynqSLCRState *s = (ZynqSLCRState *) opaque; | |
5ee0abed | 318 | |
38867cb7 DH |
319 | zynq_slcr_compute_clocks(s); |
320 | zynq_slcr_propagate_clocks(s); | |
321 | } | |
322 | ||
323 | static void zynq_slcr_reset_init(Object *obj, ResetType type) | |
324 | { | |
325 | ZynqSLCRState *s = ZYNQ_SLCR(obj); | |
e3260506 | 326 | int i; |
e3260506 PC |
327 | |
328 | DB_PRINT("RESET\n"); | |
329 | ||
a6b3ed23 | 330 | s->regs[R_LOCKSTA] = 1; |
e3260506 | 331 | /* 0x100 - 0x11C */ |
a6b3ed23 DH |
332 | s->regs[R_ARM_PLL_CTRL] = 0x0001A008; |
333 | s->regs[R_DDR_PLL_CTRL] = 0x0001A008; | |
334 | s->regs[R_IO_PLL_CTRL] = 0x0001A008; | |
335 | s->regs[R_PLL_STATUS] = 0x0000003F; | |
336 | s->regs[R_ARM_PLL_CFG] = 0x00014000; | |
337 | s->regs[R_DDR_PLL_CFG] = 0x00014000; | |
338 | s->regs[R_IO_PLL_CFG] = 0x00014000; | |
e3260506 PC |
339 | |
340 | /* 0x120 - 0x16C */ | |
a6b3ed23 DH |
341 | s->regs[R_ARM_CLK_CTRL] = 0x1F000400; |
342 | s->regs[R_DDR_CLK_CTRL] = 0x18400003; | |
343 | s->regs[R_DCI_CLK_CTRL] = 0x01E03201; | |
344 | s->regs[R_APER_CLK_CTRL] = 0x01FFCCCD; | |
345 | s->regs[R_USB0_CLK_CTRL] = s->regs[R_USB1_CLK_CTRL] = 0x00101941; | |
346 | s->regs[R_GEM0_RCLK_CTRL] = s->regs[R_GEM1_RCLK_CTRL] = 0x00000001; | |
347 | s->regs[R_GEM0_CLK_CTRL] = s->regs[R_GEM1_CLK_CTRL] = 0x00003C01; | |
348 | s->regs[R_SMC_CLK_CTRL] = 0x00003C01; | |
349 | s->regs[R_LQSPI_CLK_CTRL] = 0x00002821; | |
350 | s->regs[R_SDIO_CLK_CTRL] = 0x00001E03; | |
351 | s->regs[R_UART_CLK_CTRL] = 0x00003F03; | |
352 | s->regs[R_SPI_CLK_CTRL] = 0x00003F03; | |
353 | s->regs[R_CAN_CLK_CTRL] = 0x00501903; | |
354 | s->regs[R_DBG_CLK_CTRL] = 0x00000F03; | |
355 | s->regs[R_PCAP_CLK_CTRL] = 0x00000F01; | |
e3260506 PC |
356 | |
357 | /* 0x170 - 0x1AC */ | |
a6b3ed23 DH |
358 | s->regs[R_FPGA0_CLK_CTRL] = s->regs[R_FPGA1_CLK_CTRL] |
359 | = s->regs[R_FPGA2_CLK_CTRL] | |
360 | = s->regs[R_FPGA3_CLK_CTRL] = 0x00101800; | |
361 | s->regs[R_FPGA0_THR_STA] = s->regs[R_FPGA1_THR_STA] | |
362 | = s->regs[R_FPGA2_THR_STA] | |
363 | = s->regs[R_FPGA3_THR_STA] = 0x00010000; | |
e3260506 PC |
364 | |
365 | /* 0x1B0 - 0x1D8 */ | |
a6b3ed23 DH |
366 | s->regs[R_BANDGAP_TRIP] = 0x0000001F; |
367 | s->regs[R_PLL_PREDIVISOR] = 0x00000001; | |
368 | s->regs[R_CLK_621_TRUE] = 0x00000001; | |
e3260506 PC |
369 | |
370 | /* 0x200 - 0x25C */ | |
a6b3ed23 DH |
371 | s->regs[R_FPGA_RST_CTRL] = 0x01F33F0F; |
372 | s->regs[R_RST_REASON] = 0x00000040; | |
db302f8f | 373 | |
a6b3ed23 | 374 | s->regs[R_BOOT_MODE] = 0x00000001; |
e3260506 PC |
375 | |
376 | /* 0x700 - 0x7D4 */ | |
377 | for (i = 0; i < 54; i++) { | |
a6b3ed23 | 378 | s->regs[R_MIO + i] = 0x00001601; |
e3260506 PC |
379 | } |
380 | for (i = 2; i <= 8; i++) { | |
a6b3ed23 | 381 | s->regs[R_MIO + i] = 0x00000601; |
e3260506 PC |
382 | } |
383 | ||
a6b3ed23 | 384 | s->regs[R_MIO_MST_TRI0] = s->regs[R_MIO_MST_TRI1] = 0xFFFFFFFF; |
e3260506 | 385 | |
a6b3ed23 DH |
386 | s->regs[R_CPU_RAM + 0] = s->regs[R_CPU_RAM + 1] = s->regs[R_CPU_RAM + 3] |
387 | = s->regs[R_CPU_RAM + 4] = s->regs[R_CPU_RAM + 7] | |
388 | = 0x00010101; | |
389 | s->regs[R_CPU_RAM + 2] = s->regs[R_CPU_RAM + 5] = 0x01010101; | |
390 | s->regs[R_CPU_RAM + 6] = 0x00000001; | |
e3260506 | 391 | |
a6b3ed23 DH |
392 | s->regs[R_IOU + 0] = s->regs[R_IOU + 1] = s->regs[R_IOU + 2] |
393 | = s->regs[R_IOU + 3] = 0x09090909; | |
394 | s->regs[R_IOU + 4] = s->regs[R_IOU + 5] = 0x00090909; | |
395 | s->regs[R_IOU + 6] = 0x00000909; | |
e3260506 | 396 | |
a6b3ed23 | 397 | s->regs[R_DMAC_RAM] = 0x00000009; |
e3260506 | 398 | |
a6b3ed23 DH |
399 | s->regs[R_AFI0 + 0] = s->regs[R_AFI0 + 1] = 0x09090909; |
400 | s->regs[R_AFI1 + 0] = s->regs[R_AFI1 + 1] = 0x09090909; | |
401 | s->regs[R_AFI2 + 0] = s->regs[R_AFI2 + 1] = 0x09090909; | |
402 | s->regs[R_AFI3 + 0] = s->regs[R_AFI3 + 1] = 0x09090909; | |
403 | s->regs[R_AFI0 + 2] = s->regs[R_AFI1 + 2] = s->regs[R_AFI2 + 2] | |
404 | = s->regs[R_AFI3 + 2] = 0x00000909; | |
e3260506 | 405 | |
a6b3ed23 DH |
406 | s->regs[R_OCM + 0] = 0x01010101; |
407 | s->regs[R_OCM + 1] = s->regs[R_OCM + 2] = 0x09090909; | |
e3260506 | 408 | |
a6b3ed23 DH |
409 | s->regs[R_DEVCI_RAM] = 0x00000909; |
410 | s->regs[R_CSG_RAM] = 0x00000001; | |
e3260506 | 411 | |
a6b3ed23 DH |
412 | s->regs[R_DDRIOB + 0] = s->regs[R_DDRIOB + 1] = s->regs[R_DDRIOB + 2] |
413 | = s->regs[R_DDRIOB + 3] = 0x00000e00; | |
414 | s->regs[R_DDRIOB + 4] = s->regs[R_DDRIOB + 5] = s->regs[R_DDRIOB + 6] | |
415 | = 0x00000e00; | |
416 | s->regs[R_DDRIOB + 12] = 0x00000021; | |
e3260506 PC |
417 | } |
418 | ||
38867cb7 DH |
419 | static void zynq_slcr_reset_hold(Object *obj) |
420 | { | |
421 | ZynqSLCRState *s = ZYNQ_SLCR(obj); | |
422 | ||
423 | /* will disable all output clocks */ | |
a89b91ad | 424 | zynq_slcr_compute_clocks_internal(s, 0); |
38867cb7 DH |
425 | zynq_slcr_propagate_clocks(s); |
426 | } | |
427 | ||
428 | static void zynq_slcr_reset_exit(Object *obj) | |
429 | { | |
430 | ZynqSLCRState *s = ZYNQ_SLCR(obj); | |
431 | ||
432 | /* will compute output clocks according to ps_clk and registers */ | |
a89b91ad | 433 | zynq_slcr_compute_clocks_internal(s, clock_get(s->ps_clk)); |
38867cb7 DH |
434 | zynq_slcr_propagate_clocks(s); |
435 | } | |
e3260506 | 436 | |
db302f8f PC |
437 | static bool zynq_slcr_check_offset(hwaddr offset, bool rnw) |
438 | { | |
e3260506 | 439 | switch (offset) { |
a6b3ed23 DH |
440 | case R_LOCK: |
441 | case R_UNLOCK: | |
442 | case R_DDR_CAL_START: | |
443 | case R_DDR_REF_START: | |
db302f8f | 444 | return !rnw; /* Write only */ |
a6b3ed23 DH |
445 | case R_LOCKSTA: |
446 | case R_FPGA0_THR_STA: | |
447 | case R_FPGA1_THR_STA: | |
448 | case R_FPGA2_THR_STA: | |
449 | case R_FPGA3_THR_STA: | |
450 | case R_BOOT_MODE: | |
451 | case R_PSS_IDCODE: | |
452 | case R_DDR_CMD_STA: | |
453 | case R_DDR_DFI_STATUS: | |
454 | case R_PLL_STATUS: | |
db302f8f | 455 | return rnw;/* read only */ |
a6b3ed23 DH |
456 | case R_SCL: |
457 | case R_ARM_PLL_CTRL ... R_IO_PLL_CTRL: | |
458 | case R_ARM_PLL_CFG ... R_IO_PLL_CFG: | |
459 | case R_ARM_CLK_CTRL ... R_TOPSW_CLK_CTRL: | |
460 | case R_FPGA0_CLK_CTRL ... R_FPGA0_THR_CNT: | |
461 | case R_FPGA1_CLK_CTRL ... R_FPGA1_THR_CNT: | |
462 | case R_FPGA2_CLK_CTRL ... R_FPGA2_THR_CNT: | |
463 | case R_FPGA3_CLK_CTRL ... R_FPGA3_THR_CNT: | |
464 | case R_BANDGAP_TRIP: | |
465 | case R_PLL_PREDIVISOR: | |
466 | case R_CLK_621_TRUE: | |
467 | case R_PSS_RST_CTRL ... R_A9_CPU_RST_CTRL: | |
468 | case R_RS_AWDT_CTRL: | |
469 | case R_RST_REASON: | |
470 | case R_REBOOT_STATUS: | |
471 | case R_APU_CTRL: | |
472 | case R_WDT_CLK_SEL: | |
473 | case R_TZ_DMA_NS ... R_TZ_DMA_PERIPH_NS: | |
474 | case R_DDR_URGENT: | |
475 | case R_DDR_URGENT_SEL: | |
476 | case R_MIO ... R_MIO + MIO_LENGTH - 1: | |
477 | case R_MIO_LOOPBACK ... R_MIO_MST_TRI1: | |
478 | case R_SD0_WP_CD_SEL: | |
479 | case R_SD1_WP_CD_SEL: | |
480 | case R_LVL_SHFTR_EN: | |
481 | case R_OCM_CFG: | |
482 | case R_CPU_RAM: | |
483 | case R_IOU: | |
484 | case R_DMAC_RAM: | |
485 | case R_AFI0 ... R_AFI3 + AFI_LENGTH - 1: | |
486 | case R_OCM: | |
487 | case R_DEVCI_RAM: | |
488 | case R_CSG_RAM: | |
489 | case R_GPIOB_CTRL ... R_GPIOB_CFG_CMOS33: | |
490 | case R_GPIOB_CFG_HSTL: | |
491 | case R_GPIOB_DRVR_BIAS_CTRL: | |
492 | case R_DDRIOB ... R_DDRIOB + DDRIOB_LENGTH - 1: | |
db302f8f | 493 | return true; |
e3260506 | 494 | default: |
db302f8f | 495 | return false; |
e3260506 PC |
496 | } |
497 | } | |
498 | ||
a8170e5e | 499 | static uint64_t zynq_slcr_read(void *opaque, hwaddr offset, |
e3260506 PC |
500 | unsigned size) |
501 | { | |
db302f8f PC |
502 | ZynqSLCRState *s = opaque; |
503 | offset /= 4; | |
504 | uint32_t ret = s->regs[offset]; | |
e3260506 | 505 | |
db302f8f PC |
506 | if (!zynq_slcr_check_offset(offset, true)) { |
507 | qemu_log_mask(LOG_GUEST_ERROR, "zynq_slcr: Invalid read access to " | |
508 | " addr %" HWADDR_PRIx "\n", offset * 4); | |
509 | } | |
510 | ||
511 | DB_PRINT("addr: %08" HWADDR_PRIx " data: %08" PRIx32 "\n", offset * 4, ret); | |
e3260506 PC |
512 | return ret; |
513 | } | |
514 | ||
a8170e5e | 515 | static void zynq_slcr_write(void *opaque, hwaddr offset, |
e3260506 PC |
516 | uint64_t val, unsigned size) |
517 | { | |
518 | ZynqSLCRState *s = (ZynqSLCRState *)opaque; | |
db302f8f PC |
519 | offset /= 4; |
520 | ||
521 | DB_PRINT("addr: %08" HWADDR_PRIx " data: %08" PRIx64 "\n", offset * 4, val); | |
e3260506 | 522 | |
db302f8f PC |
523 | if (!zynq_slcr_check_offset(offset, false)) { |
524 | qemu_log_mask(LOG_GUEST_ERROR, "zynq_slcr: Invalid write access to " | |
525 | "addr %" HWADDR_PRIx "\n", offset * 4); | |
526 | return; | |
527 | } | |
e3260506 PC |
528 | |
529 | switch (offset) { | |
a6b3ed23 DH |
530 | case R_SCL: |
531 | s->regs[R_SCL] = val & 0x1; | |
db302f8f | 532 | return; |
a6b3ed23 | 533 | case R_LOCK: |
e3260506 PC |
534 | if ((val & 0xFFFF) == XILINX_LOCK_KEY) { |
535 | DB_PRINT("XILINX LOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, | |
536 | (unsigned)val & 0xFFFF); | |
a6b3ed23 | 537 | s->regs[R_LOCKSTA] = 1; |
e3260506 PC |
538 | } else { |
539 | DB_PRINT("WRONG XILINX LOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", | |
540 | (int)offset, (unsigned)val & 0xFFFF); | |
541 | } | |
542 | return; | |
a6b3ed23 | 543 | case R_UNLOCK: |
e3260506 PC |
544 | if ((val & 0xFFFF) == XILINX_UNLOCK_KEY) { |
545 | DB_PRINT("XILINX UNLOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, | |
546 | (unsigned)val & 0xFFFF); | |
a6b3ed23 | 547 | s->regs[R_LOCKSTA] = 0; |
e3260506 PC |
548 | } else { |
549 | DB_PRINT("WRONG XILINX UNLOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", | |
550 | (int)offset, (unsigned)val & 0xFFFF); | |
551 | } | |
552 | return; | |
e3260506 PC |
553 | } |
554 | ||
a6b3ed23 | 555 | if (s->regs[R_LOCKSTA]) { |
c209b053 PC |
556 | qemu_log_mask(LOG_GUEST_ERROR, |
557 | "SCLR registers are locked. Unlock them first\n"); | |
db302f8f PC |
558 | return; |
559 | } | |
c209b053 | 560 | s->regs[offset] = val; |
db302f8f PC |
561 | |
562 | switch (offset) { | |
a6b3ed23 DH |
563 | case R_PSS_RST_CTRL: |
564 | if (FIELD_EX32(val, PSS_RST_CTRL, SOFT_RST)) { | |
cf83f140 | 565 | qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); |
db302f8f PC |
566 | } |
567 | break; | |
38867cb7 DH |
568 | case R_IO_PLL_CTRL: |
569 | case R_ARM_PLL_CTRL: | |
570 | case R_DDR_PLL_CTRL: | |
571 | case R_UART_CLK_CTRL: | |
572 | zynq_slcr_compute_clocks(s); | |
573 | zynq_slcr_propagate_clocks(s); | |
574 | break; | |
e3260506 PC |
575 | } |
576 | } | |
577 | ||
578 | static const MemoryRegionOps slcr_ops = { | |
579 | .read = zynq_slcr_read, | |
580 | .write = zynq_slcr_write, | |
581 | .endianness = DEVICE_NATIVE_ENDIAN, | |
582 | }; | |
583 | ||
38867cb7 | 584 | static const ClockPortInitArray zynq_slcr_clocks = { |
5ee0abed | 585 | QDEV_CLOCK_IN(ZynqSLCRState, ps_clk, zynq_slcr_ps_clk_callback, ClockUpdate), |
38867cb7 DH |
586 | QDEV_CLOCK_OUT(ZynqSLCRState, uart0_ref_clk), |
587 | QDEV_CLOCK_OUT(ZynqSLCRState, uart1_ref_clk), | |
588 | QDEV_CLOCK_END | |
589 | }; | |
590 | ||
15e3611e | 591 | static void zynq_slcr_init(Object *obj) |
e3260506 | 592 | { |
15e3611e | 593 | ZynqSLCRState *s = ZYNQ_SLCR(obj); |
e3260506 | 594 | |
15e3611e | 595 | memory_region_init_io(&s->iomem, obj, &slcr_ops, s, "slcr", |
db302f8f | 596 | ZYNQ_SLCR_MMIO_SIZE); |
15e3611e | 597 | sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem); |
38867cb7 DH |
598 | |
599 | qdev_init_clocks(DEVICE(obj), zynq_slcr_clocks); | |
e3260506 PC |
600 | } |
601 | ||
602 | static const VMStateDescription vmstate_zynq_slcr = { | |
603 | .name = "zynq_slcr", | |
38867cb7 | 604 | .version_id = 3, |
db302f8f | 605 | .minimum_version_id = 2, |
e4ea952f | 606 | .fields = (const VMStateField[]) { |
db302f8f | 607 | VMSTATE_UINT32_ARRAY(regs, ZynqSLCRState, ZYNQ_SLCR_NUM_REGS), |
38867cb7 | 608 | VMSTATE_CLOCK_V(ps_clk, ZynqSLCRState, 3), |
e3260506 PC |
609 | VMSTATE_END_OF_LIST() |
610 | } | |
611 | }; | |
612 | ||
613 | static void zynq_slcr_class_init(ObjectClass *klass, void *data) | |
614 | { | |
615 | DeviceClass *dc = DEVICE_CLASS(klass); | |
38867cb7 | 616 | ResettableClass *rc = RESETTABLE_CLASS(klass); |
e3260506 | 617 | |
e3260506 | 618 | dc->vmsd = &vmstate_zynq_slcr; |
38867cb7 DH |
619 | rc->phases.enter = zynq_slcr_reset_init; |
620 | rc->phases.hold = zynq_slcr_reset_hold; | |
621 | rc->phases.exit = zynq_slcr_reset_exit; | |
e3260506 PC |
622 | } |
623 | ||
8c43a6f0 | 624 | static const TypeInfo zynq_slcr_info = { |
e3260506 | 625 | .class_init = zynq_slcr_class_init, |
a054e2c2 | 626 | .name = TYPE_ZYNQ_SLCR, |
e3260506 PC |
627 | .parent = TYPE_SYS_BUS_DEVICE, |
628 | .instance_size = sizeof(ZynqSLCRState), | |
15e3611e | 629 | .instance_init = zynq_slcr_init, |
e3260506 PC |
630 | }; |
631 | ||
632 | static void zynq_slcr_register_types(void) | |
633 | { | |
634 | type_register_static(&zynq_slcr_info); | |
635 | } | |
636 | ||
637 | type_init(zynq_slcr_register_types) |