2 * Copyright 2014-2015 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/system.h>
11 #include <asm/armv8/mmu.h>
13 #include <asm/arch/fsl_serdes.h>
14 #include <asm/arch/soc.h>
15 #include <asm/arch/cpu.h>
16 #include <asm/arch/speed.h>
18 #include <asm/arch/mp.h>
21 #include <fsl_debug_server.h>
22 #include <fsl-mc/fsl_mc.h>
23 #ifdef CONFIG_FSL_ESDHC
24 #include <fsl_esdhc.h>
26 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
27 #include <asm/armv8/sec_firmware.h>
30 DECLARE_GLOBAL_DATA_PTR;
32 struct mm_region *mem_map = early_map;
34 void cpu_name(char *name)
36 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
37 unsigned int i, svr, ver;
39 svr = gur_in32(&gur->svr);
40 ver = SVR_SOC_VER(svr);
42 for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++)
43 if ((cpu_type_list[i].soc_ver & SVR_WO_E) == ver) {
44 strcpy(name, cpu_type_list[i].name);
46 if (IS_E_PROCESSOR(svr))
51 if (i == ARRAY_SIZE(cpu_type_list))
52 strcpy(name, "unknown");
55 #ifndef CONFIG_SYS_DCACHE_OFF
57 * To start MMU before DDR is available, we create MMU table in SRAM.
58 * The base address of SRAM is CONFIG_SYS_FSL_OCRAM_BASE. We use three
59 * levels of translation tables here to cover 40-bit address space.
60 * We use 4KB granule size, with 40 bits physical address, T0SZ=24
61 * Address above EARLY_PGTABLE_SIZE (0x5000) is free for other purpose.
62 * Note, the debug print in cache_v8.c is not usable for debugging
63 * these early MMU tables because UART is not yet available.
65 static inline void early_mmu_setup(void)
67 unsigned int el = current_el();
69 /* global data is already setup, no allocation yet */
70 gd->arch.tlb_addr = CONFIG_SYS_FSL_OCRAM_BASE;
71 gd->arch.tlb_fillptr = gd->arch.tlb_addr;
72 gd->arch.tlb_size = EARLY_PGTABLE_SIZE;
74 /* Create early page tables */
77 /* point TTBR to the new table */
78 set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
79 get_tcr(el, NULL, NULL) &
80 ~(TCR_ORGN_MASK | TCR_IRGN_MASK),
83 set_sctlr(get_sctlr() | CR_M);
87 * The final tables look similar to early tables, but different in detail.
88 * These tables are in DRAM. Sub tables are added to enable cache for
91 * Put the MMU table in secure memory if gd->arch.secure_ram is valid.
92 * OCRAM will be not used for this purpose so gd->arch.secure_ram can't be 0.
94 static inline void final_mmu_setup(void)
96 u64 tlb_addr_save = gd->arch.tlb_addr;
97 unsigned int el = current_el();
98 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
104 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
105 if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
108 * Only use gd->arch.secure_ram if the address is
109 * recalculated. Align to 4KB for MMU table.
111 /* put page tables in secure ram */
112 index = ARRAY_SIZE(final_map) - 2;
113 gd->arch.tlb_addr = gd->arch.secure_ram & ~0xfff;
114 final_map[index].virt = gd->arch.secure_ram & ~0x3;
115 final_map[index].phys = final_map[index].virt;
116 final_map[index].size = CONFIG_SYS_MEM_RESERVE_SECURE;
117 final_map[index].attrs = PTE_BLOCK_OUTER_SHARE;
118 gd->arch.secure_ram |= MEM_RESERVE_SECURE_SECURED;
119 tlb_addr_save = gd->arch.tlb_addr;
121 /* Use allocated (board_f.c) memory for TLB */
122 tlb_addr_save = gd->arch.tlb_allocated;
123 gd->arch.tlb_addr = tlb_addr_save;
128 /* Reset the fill ptr */
129 gd->arch.tlb_fillptr = tlb_addr_save;
131 /* Create normal system page tables */
134 /* Create emergency page tables */
135 gd->arch.tlb_addr = gd->arch.tlb_fillptr;
136 gd->arch.tlb_emerg = gd->arch.tlb_addr;
138 gd->arch.tlb_addr = tlb_addr_save;
140 /* flush new MMU table */
141 flush_dcache_range(gd->arch.tlb_addr,
142 gd->arch.tlb_addr + gd->arch.tlb_size);
144 /* point TTBR to the new table */
145 set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
148 * EL3 MMU is already enabled, just need to invalidate TLB to load the
149 * new table. The new table is compatible with the current table, if
150 * MMU somehow walks through the new table before invalidation TLB,
151 * it still works. So we don't need to turn off MMU here.
152 * When EL2 MMU table is created by calling this function, MMU needs
155 set_sctlr(get_sctlr() | CR_M);
158 u64 get_page_table_size(void)
163 int arch_cpu_init(void)
166 __asm_invalidate_dcache_all();
167 __asm_invalidate_tlb_all();
169 set_sctlr(get_sctlr() | CR_C);
179 * This function is called from common/board_r.c.
180 * It recreates MMU table in main memory.
182 void enable_caches(void)
185 __asm_invalidate_tlb_all();
191 static inline u32 initiator_type(u32 cluster, int init_id)
193 struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
194 u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK;
197 type = gur_in32(&gur->tp_ityp[idx]);
198 if (type & TP_ITYP_AV)
206 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
207 int i = 0, count = 0;
208 u32 cluster, type, mask = 0;
213 cluster = gur_in32(&gur->tp_cluster[i].lower);
214 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
215 type = initiator_type(cluster, j);
217 if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM)
223 } while ((cluster & TP_CLUSTER_EOC) == 0x0);
229 * Return the number of cores on this SOC.
231 int cpu_numcores(void)
233 return hweight32(cpu_mask());
236 int fsl_qoriq_core_to_cluster(unsigned int core)
238 struct ccsr_gur __iomem *gur =
239 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
240 int i = 0, count = 0;
246 cluster = gur_in32(&gur->tp_cluster[i].lower);
247 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
248 if (initiator_type(cluster, j)) {
255 } while ((cluster & TP_CLUSTER_EOC) == 0x0);
257 return -1; /* cannot identify the cluster */
260 u32 fsl_qoriq_core_to_type(unsigned int core)
262 struct ccsr_gur __iomem *gur =
263 (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
264 int i = 0, count = 0;
270 cluster = gur_in32(&gur->tp_cluster[i].lower);
271 for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
272 type = initiator_type(cluster, j);
280 } while ((cluster & TP_CLUSTER_EOC) == 0x0);
282 return -1; /* cannot identify the cluster */
287 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
289 return gur_in32(&gur->svr);
292 #ifdef CONFIG_DISPLAY_CPUINFO
293 int print_cpuinfo(void)
295 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
296 struct sys_info sysinfo;
298 unsigned int i, core;
299 u32 type, rcw, svr = gur_in32(&gur->svr);
304 printf(" %s (0x%x)\n", buf, svr);
305 memset((u8 *)buf, 0x00, ARRAY_SIZE(buf));
306 get_sys_info(&sysinfo);
307 puts("Clock Configuration:");
308 for_each_cpu(i, core, cpu_numcores(), cpu_mask()) {
311 type = TP_ITYP_VER(fsl_qoriq_core_to_type(core));
312 printf("CPU%d(%s):%-4s MHz ", core,
313 type == TY_ITYP_VER_A7 ? "A7 " :
314 (type == TY_ITYP_VER_A53 ? "A53" :
315 (type == TY_ITYP_VER_A57 ? "A57" :
316 (type == TY_ITYP_VER_A72 ? "A72" : " "))),
317 strmhz(buf, sysinfo.freq_processor[core]));
319 printf("\n Bus: %-4s MHz ",
320 strmhz(buf, sysinfo.freq_systembus));
321 printf("DDR: %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
322 #ifdef CONFIG_SYS_DPAA_FMAN
323 printf(" FMAN: %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
325 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
326 if (soc_has_dp_ddr()) {
327 printf(" DP-DDR: %-4s MT/s",
328 strmhz(buf, sysinfo.freq_ddrbus2));
334 * Display the RCW, so that no one gets confused as to what RCW
335 * we're actually using for this boot.
337 puts("Reset Configuration Word (RCW):");
338 for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
339 rcw = gur_in32(&gur->rcwsr[i]);
341 printf("\n %08x:", i * 4);
342 printf(" %08x", rcw);
350 #ifdef CONFIG_FSL_ESDHC
351 int cpu_mmc_init(bd_t *bis)
353 return fsl_esdhc_mmc_init(bis);
357 int cpu_eth_init(bd_t *bis)
361 #ifdef CONFIG_FSL_MC_ENET
362 error = fsl_mc_ldpaa_init(bis);
364 #ifdef CONFIG_FMAN_ENET
365 fm_standard_init(bis);
370 int arch_early_init_r(void)
374 u32 psci_ver = 0xffffffff;
377 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
382 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && defined(CONFIG_ARMV8_PSCI)
383 /* Check the psci version to determine if the psci is supported */
384 psci_ver = sec_firmware_support_psci_version();
386 if (psci_ver == 0xffffffff) {
387 rv = fsl_layerscape_wake_seconday_cores();
389 printf("Did not wake secondary cores\n");
393 #ifdef CONFIG_SYS_HAS_SERDES
396 #ifdef CONFIG_FMAN_ENET
404 u32 __iomem *cntcr = (u32 *)CONFIG_SYS_FSL_TIMER_ADDR;
405 #ifdef CONFIG_FSL_LSCH3
406 u32 __iomem *cltbenr = (u32 *)CONFIG_SYS_FSL_PMU_CLTBENR;
408 #ifdef CONFIG_LS2080A
409 u32 __iomem *pctbenr = (u32 *)FSL_PMU_PCTBENR_OFFSET;
411 #ifdef COUNTER_FREQUENCY_REAL
412 unsigned long cntfrq = COUNTER_FREQUENCY_REAL;
414 /* Update with accurate clock frequency */
415 asm volatile("msr cntfrq_el0, %0" : : "r" (cntfrq) : "memory");
418 #ifdef CONFIG_FSL_LSCH3
419 /* Enable timebase for all clusters.
420 * It is safe to do so even some clusters are not enabled.
422 out_le32(cltbenr, 0xf);
425 #ifdef CONFIG_LS2080A
427 * In certain Layerscape SoCs, the clock for each core's
428 * has an enable bit in the PMU Physical Core Time Base Enable
429 * Register (PCTBENR), which allows the watchdog to operate.
431 setbits_le32(pctbenr, 0xff);
434 /* Enable clock for timer
435 * This is a global setting.
437 out_le32(cntcr, 0x1);
442 void reset_cpu(ulong addr)
444 u32 __iomem *rstcr = (u32 *)CONFIG_SYS_FSL_RST_ADDR;
447 /* Raise RESET_REQ_B */
448 val = scfg_in32(rstcr);
450 scfg_out32(rstcr, val);
453 phys_size_t board_reserve_ram_top(phys_size_t ram_size)
455 phys_size_t ram_top = ram_size;
457 #ifdef CONFIG_SYS_MEM_TOP_HIDE
458 #error CONFIG_SYS_MEM_TOP_HIDE not to be used together with this function
460 /* Carve the Debug Server private DRAM block from the end of DRAM */
461 #ifdef CONFIG_FSL_DEBUG_SERVER
462 ram_top -= debug_server_get_dram_block_size();
465 /* Carve the MC private DRAM block from the end of DRAM */
466 #ifdef CONFIG_FSL_MC_ENET
467 ram_top -= mc_get_dram_block_size();
468 ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);