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>
41 DECLARE_GLOBAL_DATA_PTR;
43 extern void srio_init(void);
46 extern qe_iop_conf_t qe_iop_conf_tab[];
47 extern void qe_config_iopin(u8 port, u8 pin, int dir,
48 int open_drain, int assign);
49 extern void qe_init(uint qe_base);
50 extern void qe_reset(void);
52 static void config_qe_ioports(void)
55 int dir, open_drain, assign;
58 for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) {
59 port = qe_iop_conf_tab[i].port;
60 pin = qe_iop_conf_tab[i].pin;
61 dir = qe_iop_conf_tab[i].dir;
62 open_drain = qe_iop_conf_tab[i].open_drain;
63 assign = qe_iop_conf_tab[i].assign;
64 qe_config_iopin(port, pin, dir, open_drain, assign);
70 void config_8560_ioports (volatile ccsr_cpm_t * cpm)
74 for (portnum = 0; portnum < 4; portnum++) {
81 iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0];
82 iop_conf_t *eiopc = iopc + 32;
87 * index 0 refers to pin 31,
88 * index 31 refers to pin 0
90 while (iopc < eiopc) {
110 volatile ioport_t *iop = ioport_addr (cpm, portnum);
114 * the (somewhat confused) paragraph at the
115 * bottom of page 35-5 warns that there might
116 * be "unknown behaviour" when programming
117 * PSORx and PDIRx, if PPARx = 1, so I
118 * decided this meant I had to disable the
119 * dedicated function first, and enable it
123 iop->psor = (iop->psor & tpmsk) | psor;
124 iop->podr = (iop->podr & tpmsk) | podr;
125 iop->pdat = (iop->pdat & tpmsk) | pdat;
126 iop->pdir = (iop->pdir & tpmsk) | pdir;
133 #ifdef CONFIG_SYS_FSL_CPC
134 static void enable_cpc(void)
139 cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
141 for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
142 u32 cpccfg0 = in_be32(&cpc->cpccfg0);
143 size += CPC_CFG0_SZ_K(cpccfg0);
145 out_be32(&cpc->cpccsr0, CPC_CSR0_CE | CPC_CSR0_PE);
146 /* Read back to sync write */
147 in_be32(&cpc->cpccsr0);
151 printf("Corenet Platform Cache: %d KB enabled\n", size);
154 void invalidate_cpc(void)
157 cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
159 for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
160 /* Flash invalidate the CPC and clear all the locks */
161 out_be32(&cpc->cpccsr0, CPC_CSR0_FI | CPC_CSR0_LFC);
162 while (in_be32(&cpc->cpccsr0) & (CPC_CSR0_FI | CPC_CSR0_LFC))
168 #define invalidate_cpc()
169 #endif /* CONFIG_SYS_FSL_CPC */
172 * Breathe some life into the CPU...
174 * Set up the memory map
175 * initialize a bunch of registers
178 #ifdef CONFIG_FSL_CORENET
179 static void corenet_tb_init(void)
181 volatile ccsr_rcpm_t *rcpm =
182 (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
183 volatile ccsr_pic_t *pic =
184 (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
185 u32 whoami = in_be32(&pic->whoami);
187 /* Enable the timebase register for this core */
188 out_be32(&rcpm->ctbenrl, (1 << whoami));
192 void cpu_init_f (void)
194 extern void m8560_cpm_reset (void);
195 #ifdef CONFIG_MPC8548
196 ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
197 uint svr = get_svr();
200 * CPU2 errata workaround: A core hang possible while executing
201 * a msync instruction and a snoopable transaction from an I/O
202 * master tagged to make quick forward progress is present.
203 * Fixed in silicon rev 2.1.
205 if ((SVR_MAJ(svr) == 1) || ((SVR_MAJ(svr) == 2 && SVR_MIN(svr) == 0x0)))
206 out_be32(&ecm->eebpcr, in_be32(&ecm->eebpcr) | (1 << 16));
213 config_8560_ioports((ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR);
216 init_early_memctl_regs();
218 #if defined(CONFIG_CPM2)
222 /* Config QE ioports */
225 #if defined(CONFIG_FSL_DMA)
228 #ifdef CONFIG_FSL_CORENET
231 init_used_tlb_cams();
233 /* Invalidate the CPC before DDR gets enabled */
237 /* Implement a dummy function for those platforms w/o SERDES */
238 static void __fsl_serdes__init(void)
242 __attribute__((weak, alias("__fsl_serdes__init"))) void fsl_serdes_init(void);
245 * Initialize L2 as cache.
247 * The newer 8548, etc, parts have twice as much cache, but
248 * use the same bit-encoding as the older 8555, etc, parts.
253 #ifdef CONFIG_SYS_LBC_LCRR
254 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
257 #if defined(CONFIG_SYS_P4080_ERRATUM_CPU22)
259 mtspr(L1CSR2, (mfspr(L1CSR2) | L1CSR2_DCWS));
265 #if defined(CONFIG_L2_CACHE)
266 volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
267 volatile uint cache_ctl;
273 ver = SVR_SOC_VER(svr);
276 cache_ctl = l2cache->l2ctl;
278 #if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
279 if (cache_ctl & MPC85xx_L2CTL_L2E) {
280 /* Clear L2 SRAM memory-mapped base address */
281 out_be32(&l2cache->l2srbar0, 0x0);
282 out_be32(&l2cache->l2srbar1, 0x0);
284 /* set MBECCDIS=0, SBECCDIS=0 */
285 clrbits_be32(&l2cache->l2errdis,
286 (MPC85xx_L2ERRDIS_MBECC |
287 MPC85xx_L2ERRDIS_SBECC));
289 /* set L2E=0, L2SRAM=0 */
290 clrbits_be32(&l2cache->l2ctl,
292 MPC85xx_L2CTL_L2SRAM_ENTIRE));
296 l2siz_field = (cache_ctl >> 28) & 0x3;
298 switch (l2siz_field) {
300 printf(" unknown size (0x%08x)\n", cache_ctl);
304 if (ver == SVR_8540 || ver == SVR_8560 ||
305 ver == SVR_8541 || ver == SVR_8541_E ||
306 ver == SVR_8555 || ver == SVR_8555_E) {
308 /* set L2E=1, L2I=1, & L2BLKSZ=1 (128 Kbyte) */
309 cache_ctl = 0xc4000000;
312 cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */
316 if (ver == SVR_8540 || ver == SVR_8560 ||
317 ver == SVR_8541 || ver == SVR_8541_E ||
318 ver == SVR_8555 || ver == SVR_8555_E) {
320 /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 Kbyte) */
321 cache_ctl = 0xc8000000;
324 /* set L2E=1, L2I=1, & L2SRAM=0 */
325 cache_ctl = 0xc0000000;
330 /* set L2E=1, L2I=1, & L2SRAM=0 */
331 cache_ctl = 0xc0000000;
335 if (l2cache->l2ctl & MPC85xx_L2CTL_L2E) {
336 puts("already enabled");
337 l2srbar = l2cache->l2srbar0;
338 #if defined(CONFIG_SYS_INIT_L2_ADDR) && defined(CONFIG_SYS_FLASH_BASE)
339 if (l2cache->l2ctl & MPC85xx_L2CTL_L2SRAM_ENTIRE
340 && l2srbar >= CONFIG_SYS_FLASH_BASE) {
341 l2srbar = CONFIG_SYS_INIT_L2_ADDR;
342 l2cache->l2srbar0 = l2srbar;
343 printf("moving to 0x%08x", CONFIG_SYS_INIT_L2_ADDR);
345 #endif /* CONFIG_SYS_INIT_L2_ADDR */
349 l2cache->l2ctl = cache_ctl; /* invalidate & enable */
353 #elif defined(CONFIG_BACKSIDE_L2_CACHE)
354 u32 l2cfg0 = mfspr(SPRN_L2CFG0);
356 /* invalidate the L2 cache */
357 mtspr(SPRN_L2CSR0, (L2CSR0_L2FI|L2CSR0_L2LFC));
358 while (mfspr(SPRN_L2CSR0) & (L2CSR0_L2FI|L2CSR0_L2LFC))
361 #ifdef CONFIG_SYS_CACHE_STASHING
362 /* set stash id to (coreID) * 2 + 32 + L2 (1) */
363 mtspr(SPRN_L2CSR1, (32 + 1));
366 /* enable the cache */
367 mtspr(SPRN_L2CSR0, CONFIG_SYS_INIT_L2CSR0);
369 if (CONFIG_SYS_INIT_L2CSR0 & L2CSR0_L2E) {
370 while (!(mfspr(SPRN_L2CSR0) & L2CSR0_L2E))
372 printf("%d KB enabled\n", (l2cfg0 & 0x3fff) * 64);
381 uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
386 /* needs to be in ram since code uses global static vars */
389 #ifdef CONFIG_SYS_SRIO
393 #if defined(CONFIG_MP)
397 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC136
400 p = (void *)CONFIG_SYS_DCSRBAR + 0x20520;
401 setbits_be32(p, 1 << (31 - 14));
405 #ifdef CONFIG_SYS_LBC_LCRR
407 * Modify the CLKDIV field of LCRR register to improve the writing
408 * speed for NOR flash.
410 clrsetbits_be32(&lbc->lcrr, LCRR_CLKDIV, CONFIG_SYS_LBC_LCRR);
411 __raw_readl(&lbc->lcrr);
418 extern void setup_ivors(void);
420 void arch_preboot_os(void)
425 * We are changing interrupt offsets and are about to boot the OS so
426 * we need to make sure we disable all async interrupts. EE is already
427 * disabled by the time we get called.
430 msr &= ~(MSR_ME|MSR_CE|MSR_DE);
436 #if defined(CONFIG_CMD_SATA) && defined(CONFIG_FSL_SATA)
437 int sata_initialize(void)
439 if (is_serdes_configured(SATA1) || is_serdes_configured(SATA2))
440 return __sata_initialize();