2 * Copyright 2008-2014 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
6 * Based on CAAM driver in drivers/crypto/caam in Linux
14 #define CIRC_CNT(head, tail, size) (((head) - (tail)) & (size - 1))
15 #define CIRC_SPACE(head, tail, size) CIRC_CNT((tail), (head) + 1, (size))
19 static inline void start_jr0(void)
21 ccsr_sec_t *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
22 u32 ctpr_ms = sec_in32(&sec->ctpr_ms);
23 u32 scfgr = sec_in32(&sec->scfgr);
25 if (ctpr_ms & SEC_CTPR_MS_VIRT_EN_INCL) {
26 /* VIRT_EN_INCL = 1 & VIRT_EN_POR = 1 or
27 * VIRT_EN_INCL = 1 & VIRT_EN_POR = 0 & SEC_SCFGR_VIRT_EN = 1
29 if ((ctpr_ms & SEC_CTPR_MS_VIRT_EN_POR) ||
30 (!(ctpr_ms & SEC_CTPR_MS_VIRT_EN_POR) &&
31 (scfgr & SEC_SCFGR_VIRT_EN)))
32 sec_out32(&sec->jrstartr, CONFIG_JRSTARTR_JR0);
34 /* VIRT_EN_INCL = 0 && VIRT_EN_POR_VALUE = 1 */
35 if (ctpr_ms & SEC_CTPR_MS_VIRT_EN_POR)
36 sec_out32(&sec->jrstartr, CONFIG_JRSTARTR_JR0);
40 static inline void jr_reset_liodn(void)
42 ccsr_sec_t *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
43 sec_out32(&sec->jrliodnr[0].ls, 0);
46 static inline void jr_disable_irq(void)
48 struct jr_regs *regs = (struct jr_regs *)CONFIG_SYS_FSL_JR0_ADDR;
49 uint32_t jrcfg = sec_in32(®s->jrcfg1);
51 jrcfg = jrcfg | JR_INTMASK;
53 sec_out32(®s->jrcfg1, jrcfg);
56 static void jr_initregs(void)
58 struct jr_regs *regs = (struct jr_regs *)CONFIG_SYS_FSL_JR0_ADDR;
59 phys_addr_t ip_base = virt_to_phys((void *)jr.input_ring);
60 phys_addr_t op_base = virt_to_phys((void *)jr.output_ring);
62 #ifdef CONFIG_PHYS_64BIT
63 sec_out32(®s->irba_h, ip_base >> 32);
65 sec_out32(®s->irba_h, 0x0);
67 sec_out32(®s->irba_l, (uint32_t)ip_base);
68 #ifdef CONFIG_PHYS_64BIT
69 sec_out32(®s->orba_h, op_base >> 32);
71 sec_out32(®s->orba_h, 0x0);
73 sec_out32(®s->orba_l, (uint32_t)op_base);
74 sec_out32(®s->ors, JR_SIZE);
75 sec_out32(®s->irs, JR_SIZE);
81 static int jr_init(void)
83 memset(&jr, 0, sizeof(struct jobring));
85 jr.jq_id = DEFAULT_JR_ID;
88 #ifdef CONFIG_FSL_CORENET
89 jr.liodn = DEFAULT_JR_LIODN;
92 jr.input_ring = (dma_addr_t *)malloc(JR_SIZE * sizeof(dma_addr_t));
96 (struct op_ring *)malloc(JR_SIZE * sizeof(struct op_ring));
100 memset(jr.input_ring, 0, JR_SIZE * sizeof(dma_addr_t));
101 memset(jr.output_ring, 0, JR_SIZE * sizeof(struct op_ring));
110 static int jr_sw_cleanup(void)
116 memset(jr.info, 0, sizeof(jr.info));
117 memset(jr.input_ring, 0, jr.size * sizeof(dma_addr_t));
118 memset(jr.output_ring, 0, jr.size * sizeof(struct op_ring));
123 static int jr_hw_reset(void)
125 struct jr_regs *regs = (struct jr_regs *)CONFIG_SYS_FSL_JR0_ADDR;
126 uint32_t timeout = 100000;
127 uint32_t jrint, jrcr;
129 sec_out32(®s->jrcr, JRCR_RESET);
131 jrint = sec_in32(®s->jrint);
132 } while (((jrint & JRINT_ERR_HALT_MASK) ==
133 JRINT_ERR_HALT_INPROGRESS) && --timeout);
135 jrint = sec_in32(®s->jrint);
136 if (((jrint & JRINT_ERR_HALT_MASK) !=
137 JRINT_ERR_HALT_INPROGRESS) && timeout == 0)
141 sec_out32(®s->jrcr, JRCR_RESET);
143 jrcr = sec_in32(®s->jrcr);
144 } while ((jrcr & JRCR_RESET) && --timeout);
152 /* -1 --- error, can't enqueue -- no space available */
153 static int jr_enqueue(uint32_t *desc_addr,
154 void (*callback)(uint32_t desc, uint32_t status, void *arg),
157 struct jr_regs *regs = (struct jr_regs *)CONFIG_SYS_FSL_JR0_ADDR;
159 dma_addr_t desc_phys_addr = virt_to_phys(desc_addr);
161 if (sec_in32(®s->irsa) == 0 ||
162 CIRC_SPACE(jr.head, jr.tail, jr.size) <= 0)
165 jr.input_ring[head] = desc_phys_addr;
166 jr.info[head].desc_phys_addr = desc_phys_addr;
167 jr.info[head].desc_addr = (uint32_t)desc_addr;
168 jr.info[head].callback = (void *)callback;
169 jr.info[head].arg = arg;
170 jr.info[head].op_done = 0;
172 jr.head = (head + 1) & (jr.size - 1);
174 sec_out32(®s->irja, 1);
179 static int jr_dequeue(void)
181 struct jr_regs *regs = (struct jr_regs *)CONFIG_SYS_FSL_JR0_ADDR;
185 void (*callback)(uint32_t desc, uint32_t status, void *arg);
188 while (sec_in32(®s->orsf) && CIRC_CNT(jr.head, jr.tail, jr.size)) {
191 dma_addr_t op_desc = jr.output_ring[jr.tail].desc;
192 uint32_t status = jr.output_ring[jr.tail].status;
195 for (i = 0; CIRC_CNT(head, tail + i, jr.size) >= 1; i++) {
196 idx = (tail + i) & (jr.size - 1);
197 if (op_desc == jr.info[idx].desc_phys_addr) {
198 desc_virt = jr.info[idx].desc_addr;
204 /* Error condition if match not found */
208 jr.info[idx].op_done = 1;
209 callback = (void *)jr.info[idx].callback;
210 arg = jr.info[idx].arg;
212 /* When the job on tail idx gets done, increment
213 * tail till the point where job completed out of oredr has
214 * been taken into account
218 tail = (tail + 1) & (jr.size - 1);
219 } while (jr.info[tail].op_done);
222 jr.read_idx = (jr.read_idx + 1) & (jr.size - 1);
224 sec_out32(®s->orjr, 1);
225 jr.info[idx].op_done = 0;
227 callback(desc_virt, status, arg);
233 static void desc_done(uint32_t desc, uint32_t status, void *arg)
235 struct result *x = arg;
237 caam_jr_strstatus(status);
241 int run_descriptor_jr(uint32_t *desc)
243 unsigned long long timeval = get_ticks();
244 unsigned long long timeout = usec2ticks(CONFIG_SEC_DEQ_TIMEOUT);
248 memset(&op, sizeof(op), 0);
250 ret = jr_enqueue(desc, desc_done, &op);
252 debug("Error in SEC enq\n");
257 timeval = get_ticks();
258 timeout = usec2ticks(CONFIG_SEC_DEQ_TIMEOUT);
259 while (op.done != 1) {
262 debug("Error in SEC deq\n");
267 if ((get_ticks() - timeval) > timeout) {
268 debug("SEC Dequeue timed out\n");
275 debug("Error %x\n", op.status);
284 if (jr_hw_reset() < 0)
287 /* Clean up the jobring structure maintained by software */
295 ccsr_sec_t *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
296 uint32_t mcfgr = sec_in32(&sec->mcfgr);
297 uint32_t timeout = 100000;
299 mcfgr |= MCFGR_SWRST;
300 sec_out32(&sec->mcfgr, mcfgr);
302 mcfgr |= MCFGR_DMA_RST;
303 sec_out32(&sec->mcfgr, mcfgr);
305 mcfgr = sec_in32(&sec->mcfgr);
306 } while ((mcfgr & MCFGR_DMA_RST) == MCFGR_DMA_RST && --timeout);
313 mcfgr = sec_in32(&sec->mcfgr);
314 } while ((mcfgr & MCFGR_SWRST) == MCFGR_SWRST && --timeout);
326 #ifdef CONFIG_PHYS_64BIT
327 ccsr_sec_t *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
328 uint32_t mcr = sec_in32(&sec->mcfgr);
330 sec_out32(&sec->mcfgr, mcr | 1 << MCFGR_PS_SHIFT);