2 * Copyright (c) 2011-2012 Semihalf.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/reboot.h>
33 #include <machine/machdep.h>
35 #include <dev/fdt/fdt_common.h>
37 #include <powerpc/mpc85xx/mpc85xx.h>
39 extern void dcache_enable(void);
40 extern void dcache_inval(void);
41 extern void icache_enable(void);
42 extern void icache_inval(void);
43 extern void l2cache_enable(void);
44 extern void l2cache_inval(void);
47 booke_init_tlb(vm_paddr_t fdt_immr_pa)
50 /* Initialize TLB1 handling */
51 tlb1_init(fdt_immr_pa);
55 booke_enable_l1_cache(void)
59 /* Enable D-cache if applicable */
60 csr = mfspr(SPR_L1CSR0);
61 if ((csr & L1CSR0_DCE) == 0) {
66 csr = mfspr(SPR_L1CSR0);
67 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR0_DCE) == 0)
68 printf("L1 D-cache %sabled\n",
69 (csr & L1CSR0_DCE) ? "en" : "dis");
71 /* Enable L1 I-cache if applicable. */
72 csr = mfspr(SPR_L1CSR1);
73 if ((csr & L1CSR1_ICE) == 0) {
78 csr = mfspr(SPR_L1CSR1);
79 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR1_ICE) == 0)
80 printf("L1 I-cache %sabled\n",
81 (csr & L1CSR1_ICE) ? "en" : "dis");
86 booke_enable_l2_cache(void)
90 /* Enable L2 cache on E500mc */
91 if ((((mfpvr() >> 16) & 0xFFFF) == FSL_E500mc) ||
92 (((mfpvr() >> 16) & 0xFFFF) == FSL_E5500)) {
93 csr = mfspr(SPR_L2CSR0);
94 if ((csr & L2CSR0_L2E) == 0) {
99 csr = mfspr(SPR_L2CSR0);
100 if ((boothowto & RB_VERBOSE) != 0 || (csr & L2CSR0_L2E) == 0)
101 printf("L2 cache %sabled\n",
102 (csr & L2CSR0_L2E) ? "en" : "dis");
107 booke_enable_l3_cache(void)
109 uint32_t csr, size, ver;
111 /* Enable L3 CoreNet Platform Cache (CPC) */
112 ver = SVR_VER(mfspr(SPR_SVR));
113 if (ver == SVR_P2041 || ver == SVR_P2041E || ver == SVR_P3041 ||
114 ver == SVR_P3041E || ver == SVR_P5020 || ver == SVR_P5020E) {
115 csr = ccsr_read4(OCP85XX_CPC_CSR0);
116 if ((csr & OCP85XX_CPC_CSR0_CE) == 0) {
121 csr = ccsr_read4(OCP85XX_CPC_CSR0);
122 if ((boothowto & RB_VERBOSE) != 0 ||
123 (csr & OCP85XX_CPC_CSR0_CE) == 0) {
124 size = OCP85XX_CPC_CFG0_SZ_K(ccsr_read4(OCP85XX_CPC_CFG0));
125 printf("L3 Corenet Platform Cache: %d KB %sabled\n",
126 size, (csr & OCP85XX_CPC_CSR0_CE) == 0 ?
133 booke_disable_l2_cache(void)
141 /* Flash invalidate the CPC and clear all the locks */
142 ccsr_write4(OCP85XX_CPC_CSR0, OCP85XX_CPC_CSR0_FI |
143 OCP85XX_CPC_CSR0_LFC);
144 while (ccsr_read4(OCP85XX_CPC_CSR0) & (OCP85XX_CPC_CSR0_FI |
145 OCP85XX_CPC_CSR0_LFC))
153 ccsr_write4(OCP85XX_CPC_CSR0, OCP85XX_CPC_CSR0_CE |
154 OCP85XX_CPC_CSR0_PE);
155 /* Read back to sync write */
156 ccsr_read4(OCP85XX_CPC_CSR0);