2 * Copyright 2007-2011 Freescale Semiconductor, Inc.
4 * (C) Copyright 2003 Motorola Inc.
5 * Modified by Xianghua Xiao, X.Xiao@motorola.com
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
10 * See file CREDITS for list of people who contributed to this
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/processor.h>
35 #include <asm/cache.h>
37 #include <asm/fsl_law.h>
38 #include <asm/fsl_serdes.h>
40 #ifdef CONFIG_SYS_QE_FW_IN_NAND
45 DECLARE_GLOBAL_DATA_PTR;
47 extern void srio_init(void);
50 extern qe_iop_conf_t qe_iop_conf_tab[];
51 extern void qe_config_iopin(u8 port, u8 pin, int dir,
52 int open_drain, int assign);
53 extern void qe_init(uint qe_base);
54 extern void qe_reset(void);
56 static void config_qe_ioports(void)
59 int dir, open_drain, assign;
62 for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) {
63 port = qe_iop_conf_tab[i].port;
64 pin = qe_iop_conf_tab[i].pin;
65 dir = qe_iop_conf_tab[i].dir;
66 open_drain = qe_iop_conf_tab[i].open_drain;
67 assign = qe_iop_conf_tab[i].assign;
68 qe_config_iopin(port, pin, dir, open_drain, assign);
74 void config_8560_ioports (volatile ccsr_cpm_t * cpm)
78 for (portnum = 0; portnum < 4; portnum++) {
85 iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0];
86 iop_conf_t *eiopc = iopc + 32;
91 * index 0 refers to pin 31,
92 * index 31 refers to pin 0
94 while (iopc < eiopc) {
114 volatile ioport_t *iop = ioport_addr (cpm, portnum);
118 * the (somewhat confused) paragraph at the
119 * bottom of page 35-5 warns that there might
120 * be "unknown behaviour" when programming
121 * PSORx and PDIRx, if PPARx = 1, so I
122 * decided this meant I had to disable the
123 * dedicated function first, and enable it
127 iop->psor = (iop->psor & tpmsk) | psor;
128 iop->podr = (iop->podr & tpmsk) | podr;
129 iop->pdat = (iop->pdat & tpmsk) | pdat;
130 iop->pdir = (iop->pdir & tpmsk) | pdir;
137 #ifdef CONFIG_SYS_FSL_CPC
138 static void enable_cpc(void)
143 cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
145 for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
146 u32 cpccfg0 = in_be32(&cpc->cpccfg0);
147 size += CPC_CFG0_SZ_K(cpccfg0);
148 #ifdef CONFIG_RAMBOOT_PBL
149 if (in_be32(&cpc->cpcsrcr0) & CPC_SRCR0_SRAMEN) {
150 /* find and disable LAW of SRAM */
151 struct law_entry law = find_law(CONFIG_SYS_INIT_L3_ADDR);
153 if (law.index == -1) {
154 printf("\nFatal error happened\n");
157 disable_law(law.index);
159 clrbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_CDQ_SPEC_DIS);
160 out_be32(&cpc->cpccsr0, 0);
161 out_be32(&cpc->cpcsrcr0, 0);
165 #ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A002
166 setbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_TAG_ECC_SCRUB_DIS);
168 #ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A003
169 setbits_be32(&cpc->cpchdbcr0, CPC_HDBCR0_DATA_ECC_SCRUB_DIS);
172 out_be32(&cpc->cpccsr0, CPC_CSR0_CE | CPC_CSR0_PE);
173 /* Read back to sync write */
174 in_be32(&cpc->cpccsr0);
178 printf("Corenet Platform Cache: %d KB enabled\n", size);
181 void invalidate_cpc(void)
184 cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
186 for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
187 /* skip CPC when it used as all SRAM */
188 if (in_be32(&cpc->cpcsrcr0) & CPC_SRCR0_SRAMEN)
190 /* Flash invalidate the CPC and clear all the locks */
191 out_be32(&cpc->cpccsr0, CPC_CSR0_FI | CPC_CSR0_LFC);
192 while (in_be32(&cpc->cpccsr0) & (CPC_CSR0_FI | CPC_CSR0_LFC))
198 #define invalidate_cpc()
199 #endif /* CONFIG_SYS_FSL_CPC */
202 * Breathe some life into the CPU...
204 * Set up the memory map
205 * initialize a bunch of registers
208 #ifdef CONFIG_FSL_CORENET
209 static void corenet_tb_init(void)
211 volatile ccsr_rcpm_t *rcpm =
212 (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
213 volatile ccsr_pic_t *pic =
214 (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
215 u32 whoami = in_be32(&pic->whoami);
217 /* Enable the timebase register for this core */
218 out_be32(&rcpm->ctbenrl, (1 << whoami));
222 void cpu_init_f (void)
224 extern void m8560_cpm_reset (void);
225 #ifdef CONFIG_MPC8548
226 ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
227 uint svr = get_svr();
230 * CPU2 errata workaround: A core hang possible while executing
231 * a msync instruction and a snoopable transaction from an I/O
232 * master tagged to make quick forward progress is present.
233 * Fixed in silicon rev 2.1.
235 if ((SVR_MAJ(svr) == 1) || ((SVR_MAJ(svr) == 2 && SVR_MIN(svr) == 0x0)))
236 out_be32(&ecm->eebpcr, in_be32(&ecm->eebpcr) | (1 << 16));
243 config_8560_ioports((ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR);
246 init_early_memctl_regs();
248 #if defined(CONFIG_CPM2)
252 /* Config QE ioports */
255 #if defined(CONFIG_FSL_DMA)
258 #ifdef CONFIG_FSL_CORENET
261 init_used_tlb_cams();
263 /* Invalidate the CPC before DDR gets enabled */
267 /* Implement a dummy function for those platforms w/o SERDES */
268 static void __fsl_serdes__init(void)
272 __attribute__((weak, alias("__fsl_serdes__init"))) void fsl_serdes_init(void);
275 * Initialize L2 as cache.
277 * The newer 8548, etc, parts have twice as much cache, but
278 * use the same bit-encoding as the older 8555, etc, parts.
283 #ifdef CONFIG_SYS_LBC_LCRR
284 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
287 #if defined(CONFIG_SYS_P4080_ERRATUM_CPU22)
289 mtspr(L1CSR2, (mfspr(L1CSR2) | L1CSR2_DCWS));
295 #if defined(CONFIG_L2_CACHE)
296 volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
297 volatile uint cache_ctl;
303 ver = SVR_SOC_VER(svr);
306 cache_ctl = l2cache->l2ctl;
308 #if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
309 if (cache_ctl & MPC85xx_L2CTL_L2E) {
310 /* Clear L2 SRAM memory-mapped base address */
311 out_be32(&l2cache->l2srbar0, 0x0);
312 out_be32(&l2cache->l2srbar1, 0x0);
314 /* set MBECCDIS=0, SBECCDIS=0 */
315 clrbits_be32(&l2cache->l2errdis,
316 (MPC85xx_L2ERRDIS_MBECC |
317 MPC85xx_L2ERRDIS_SBECC));
319 /* set L2E=0, L2SRAM=0 */
320 clrbits_be32(&l2cache->l2ctl,
322 MPC85xx_L2CTL_L2SRAM_ENTIRE));
326 l2siz_field = (cache_ctl >> 28) & 0x3;
328 switch (l2siz_field) {
330 printf(" unknown size (0x%08x)\n", cache_ctl);
334 if (ver == SVR_8540 || ver == SVR_8560 ||
335 ver == SVR_8541 || ver == SVR_8541_E ||
336 ver == SVR_8555 || ver == SVR_8555_E) {
338 /* set L2E=1, L2I=1, & L2BLKSZ=1 (128 Kbyte) */
339 cache_ctl = 0xc4000000;
342 cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */
346 if (ver == SVR_8540 || ver == SVR_8560 ||
347 ver == SVR_8541 || ver == SVR_8541_E ||
348 ver == SVR_8555 || ver == SVR_8555_E) {
350 /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 Kbyte) */
351 cache_ctl = 0xc8000000;
354 /* set L2E=1, L2I=1, & L2SRAM=0 */
355 cache_ctl = 0xc0000000;
360 /* set L2E=1, L2I=1, & L2SRAM=0 */
361 cache_ctl = 0xc0000000;
365 if (l2cache->l2ctl & MPC85xx_L2CTL_L2E) {
366 puts("already enabled");
367 l2srbar = l2cache->l2srbar0;
368 #if defined(CONFIG_SYS_INIT_L2_ADDR) && defined(CONFIG_SYS_FLASH_BASE)
369 if (l2cache->l2ctl & MPC85xx_L2CTL_L2SRAM_ENTIRE
370 && l2srbar >= CONFIG_SYS_FLASH_BASE) {
371 l2srbar = CONFIG_SYS_INIT_L2_ADDR;
372 l2cache->l2srbar0 = l2srbar;
373 printf("moving to 0x%08x", CONFIG_SYS_INIT_L2_ADDR);
375 #endif /* CONFIG_SYS_INIT_L2_ADDR */
379 l2cache->l2ctl = cache_ctl; /* invalidate & enable */
383 #elif defined(CONFIG_BACKSIDE_L2_CACHE)
384 u32 l2cfg0 = mfspr(SPRN_L2CFG0);
386 /* invalidate the L2 cache */
387 mtspr(SPRN_L2CSR0, (L2CSR0_L2FI|L2CSR0_L2LFC));
388 while (mfspr(SPRN_L2CSR0) & (L2CSR0_L2FI|L2CSR0_L2LFC))
391 #ifdef CONFIG_SYS_CACHE_STASHING
392 /* set stash id to (coreID) * 2 + 32 + L2 (1) */
393 mtspr(SPRN_L2CSR1, (32 + 1));
396 /* enable the cache */
397 mtspr(SPRN_L2CSR0, CONFIG_SYS_INIT_L2CSR0);
399 if (CONFIG_SYS_INIT_L2CSR0 & L2CSR0_L2E) {
400 while (!(mfspr(SPRN_L2CSR0) & L2CSR0_L2E))
402 printf("%d KB enabled\n", (l2cfg0 & 0x3fff) * 64);
410 /* needs to be in ram since code uses global static vars */
413 #ifdef CONFIG_SYS_SRIO
417 #if defined(CONFIG_MP)
421 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC136
424 p = (void *)CONFIG_SYS_DCSRBAR + 0x20520;
425 setbits_be32(p, 1 << (31 - 14));
429 #ifdef CONFIG_SYS_LBC_LCRR
431 * Modify the CLKDIV field of LCRR register to improve the writing
432 * speed for NOR flash.
434 clrsetbits_be32(&lbc->lcrr, LCRR_CLKDIV, CONFIG_SYS_LBC_LCRR);
435 __raw_readl(&lbc->lcrr);
442 extern void setup_ivors(void);
444 void arch_preboot_os(void)
449 * We are changing interrupt offsets and are about to boot the OS so
450 * we need to make sure we disable all async interrupts. EE is already
451 * disabled by the time we get called.
454 msr &= ~(MSR_ME|MSR_CE|MSR_DE);
460 #if defined(CONFIG_CMD_SATA) && defined(CONFIG_FSL_SATA)
461 int sata_initialize(void)
463 if (is_serdes_configured(SATA1) || is_serdes_configured(SATA2))
464 return __sata_initialize();
470 void cpu_secondary_init_r(void)
473 uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
474 #ifdef CONFIG_SYS_QE_FW_IN_NAND
476 size_t fw_length = CONFIG_SYS_QE_FW_LENGTH;
478 /* load QE firmware from NAND flash to DDR first */
479 ret = nand_read(&nand_info[0], (loff_t)CONFIG_SYS_QE_FW_IN_NAND,
480 &fw_length, (u_char *)CONFIG_SYS_QE_FW_ADDR);
482 if (ret && ret == -EUCLEAN) {
483 printf ("NAND read for QE firmware at offset %x failed %d\n",
484 CONFIG_SYS_QE_FW_IN_NAND, ret);