2 * Copyright 2007 Freescale Semiconductor.
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/fsl_law.h>
38 DECLARE_GLOBAL_DATA_PTR;
41 extern qe_iop_conf_t qe_iop_conf_tab[];
42 extern void qe_config_iopin(u8 port, u8 pin, int dir,
43 int open_drain, int assign);
44 extern void qe_init(uint qe_base);
45 extern void qe_reset(void);
47 static void config_qe_ioports(void)
50 int dir, open_drain, assign;
53 for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) {
54 port = qe_iop_conf_tab[i].port;
55 pin = qe_iop_conf_tab[i].pin;
56 dir = qe_iop_conf_tab[i].dir;
57 open_drain = qe_iop_conf_tab[i].open_drain;
58 assign = qe_iop_conf_tab[i].assign;
59 qe_config_iopin(port, pin, dir, open_drain, assign);
65 void config_8560_ioports (volatile ccsr_cpm_t * cpm)
69 for (portnum = 0; portnum < 4; portnum++) {
76 iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0];
77 iop_conf_t *eiopc = iopc + 32;
82 * index 0 refers to pin 31,
83 * index 31 refers to pin 0
85 while (iopc < eiopc) {
105 volatile ioport_t *iop = ioport_addr (cpm, portnum);
109 * the (somewhat confused) paragraph at the
110 * bottom of page 35-5 warns that there might
111 * be "unknown behaviour" when programming
112 * PSORx and PDIRx, if PPARx = 1, so I
113 * decided this meant I had to disable the
114 * dedicated function first, and enable it
118 iop->psor = (iop->psor & tpmsk) | psor;
119 iop->podr = (iop->podr & tpmsk) | podr;
120 iop->pdat = (iop->pdat & tpmsk) | pdat;
121 iop->pdir = (iop->pdir & tpmsk) | pdir;
128 /* We run cpu_init_early_f in AS = 1 */
129 void cpu_init_early_f(void)
131 set_tlb(0, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
132 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
133 1, 0, BOOKE_PAGESZ_4K, 0);
135 /* set up CCSR if we want it moved */
136 #if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR_PHYS)
140 set_tlb(0, CFG_CCSRBAR_DEFAULT, CFG_CCSRBAR_DEFAULT,
141 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
142 1, 1, BOOKE_PAGESZ_4K, 0);
144 temp = in_be32((volatile u32 *)CFG_CCSRBAR_DEFAULT);
145 out_be32((volatile u32 *)CFG_CCSRBAR_DEFAULT, CFG_CCSRBAR_PHYS >> 12);
147 temp = in_be32((volatile u32 *)CFG_CCSRBAR);
157 * Breathe some life into the CPU...
159 * Set up the memory map
160 * initialize a bunch of registers
163 void cpu_init_f (void)
165 volatile ccsr_lbc_t *memctl = (void *)(CFG_MPC85xx_LBC_ADDR);
166 extern void m8560_cpm_reset (void);
171 /* Pointer is writable since we allocated a register for it */
172 gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
174 /* Clear initial global data */
175 memset ((void *) gd, 0, sizeof (gd_t));
178 config_8560_ioports((ccsr_cpm_t *)CFG_MPC85xx_CPM_ADDR);
181 /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
182 * addresses - these have to be modified later when FLASH size
183 * has been determined
185 #if defined(CFG_OR0_REMAP)
186 memctl->or0 = CFG_OR0_REMAP;
188 #if defined(CFG_OR1_REMAP)
189 memctl->or1 = CFG_OR1_REMAP;
192 /* now restrict to preliminary range */
193 /* if cs1 is already set via debugger, leave cs0/cs1 alone */
194 if (! memctl->br1 & 1) {
195 #if defined(CFG_BR0_PRELIM) && defined(CFG_OR0_PRELIM)
196 memctl->br0 = CFG_BR0_PRELIM;
197 memctl->or0 = CFG_OR0_PRELIM;
200 #if defined(CFG_BR1_PRELIM) && defined(CFG_OR1_PRELIM)
201 memctl->or1 = CFG_OR1_PRELIM;
202 memctl->br1 = CFG_BR1_PRELIM;
206 #if defined(CFG_BR2_PRELIM) && defined(CFG_OR2_PRELIM)
207 memctl->or2 = CFG_OR2_PRELIM;
208 memctl->br2 = CFG_BR2_PRELIM;
211 #if defined(CFG_BR3_PRELIM) && defined(CFG_OR3_PRELIM)
212 memctl->or3 = CFG_OR3_PRELIM;
213 memctl->br3 = CFG_BR3_PRELIM;
216 #if defined(CFG_BR4_PRELIM) && defined(CFG_OR4_PRELIM)
217 memctl->or4 = CFG_OR4_PRELIM;
218 memctl->br4 = CFG_BR4_PRELIM;
221 #if defined(CFG_BR5_PRELIM) && defined(CFG_OR5_PRELIM)
222 memctl->or5 = CFG_OR5_PRELIM;
223 memctl->br5 = CFG_BR5_PRELIM;
226 #if defined(CFG_BR6_PRELIM) && defined(CFG_OR6_PRELIM)
227 memctl->or6 = CFG_OR6_PRELIM;
228 memctl->br6 = CFG_BR6_PRELIM;
231 #if defined(CFG_BR7_PRELIM) && defined(CFG_OR7_PRELIM)
232 memctl->or7 = CFG_OR7_PRELIM;
233 memctl->br7 = CFG_BR7_PRELIM;
236 #if defined(CONFIG_CPM2)
240 /* Config QE ioports */
248 * Initialize L2 as cache.
250 * The newer 8548, etc, parts have twice as much cache, but
251 * use the same bit-encoding as the older 8555, etc, parts.
257 #ifdef CONFIG_CLEAR_LAW0
258 #ifdef CONFIG_FSL_LAW
261 volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
263 /* clear alternate boot location LAW (used for sdram, or ddr bank) */
268 #if defined(CONFIG_L2_CACHE)
269 volatile ccsr_l2cache_t *l2cache = (void *)CFG_MPC85xx_L2_ADDR;
270 volatile uint cache_ctl;
275 ver = SVR_SOC_VER(svr);
278 cache_ctl = l2cache->l2ctl;
280 switch (cache_ctl & 0x30000000) {
282 if (ver == SVR_8548 || ver == SVR_8548_E ||
283 ver == SVR_8544 || ver == SVR_8568_E) {
284 printf ("L2 cache 512KB:");
285 /* set L2E=1, L2I=1, & L2SRAM=0 */
286 cache_ctl = 0xc0000000;
288 printf ("L2 cache 256KB:");
289 /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 Kbyte) */
290 cache_ctl = 0xc8000000;
294 printf ("L2 cache 256KB:");
295 if (ver == SVR_8544 || ver == SVR_8544_E) {
296 cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */
302 printf ("L2 cache unknown size (0x%08x)\n", cache_ctl);
306 if (l2cache->l2ctl & 0x80000000) {
307 printf(" already enabled.");
308 l2srbar = l2cache->l2srbar0;
309 #ifdef CFG_INIT_L2_ADDR
310 if (l2cache->l2ctl & 0x00010000 && l2srbar >= CFG_FLASH_BASE) {
311 l2srbar = CFG_INIT_L2_ADDR;
312 l2cache->l2srbar0 = l2srbar;
313 printf(" Moving to 0x%08x", CFG_INIT_L2_ADDR);
315 #endif /* CFG_INIT_L2_ADDR */
319 l2cache->l2ctl = cache_ctl; /* invalidate & enable */
321 printf(" enabled\n");
324 printf("L2 cache: disabled\n");
327 uint qe_base = CFG_IMMR + 0x00080000; /* QE immr base */
332 #if defined(CONFIG_MP)