Add GPL-2.0+ SPDX-License-Identifier to source files

[karo-tx-uboot.git] / arch / powerpc / cpu / mpc85xx / tlb.c

diff --git a/arch/powerpc/cpu/mpc85xx/tlb.c b/arch/powerpc/cpu/mpc85xx/tlb.c
index 01a3561fa0e76091d18870f41e7b373245e03cf6..da3c345d6f787bf641fd38c91055f98f604efdc0 100644 (file)
--- a/arch/powerpc/cpu/mpc85xx/tlb.c
+++ b/arch/powerpc/cpu/mpc85xx/tlb.c
@@ -4,23 +4,7 @@
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -55,7 +39,7 @@ void init_tlbs(void)
        return ;
 }
 
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
 void read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, unsigned long *epn,
                       phys_addr_t *rpn)
 {
@@ -66,7 +50,7 @@ void read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, unsigned long *epn,
        _mas1 = mfspr(MAS1);
 
        *valid = (_mas1 & MAS1_VALID);
-       *tsize = (_mas1 >> 8) & 0xf;
+       *tsize = (_mas1 >> 7) & 0x1f;
        *epn = mfspr(MAS2) & MAS2_EPN;
        *rpn = mfspr(MAS3) & MAS3_RPN;
 #ifdef CONFIG_ENABLE_36BIT_PHYS
@@ -99,7 +83,7 @@ static inline void use_tlb_cam(u8 idx)
        int i = idx / 32;
        int bit = idx % 32;
 
-       gd->used_tlb_cams[i] |= (1 << bit);
+       gd->arch.used_tlb_cams[i] |= (1 << bit);
 }
 
 static inline void free_tlb_cam(u8 idx)
@@ -107,7 +91,7 @@ static inline void free_tlb_cam(u8 idx)
        int i = idx / 32;
        int bit = idx % 32;
 
-       gd->used_tlb_cams[i] &= ~(1 << bit);
+       gd->arch.used_tlb_cams[i] &= ~(1 << bit);
 }
 
 void init_used_tlb_cams(void)
@@ -116,7 +100,7 @@ void init_used_tlb_cams(void)
        unsigned int num_cam = mfspr(SPRN_TLB1CFG) & 0xfff;
 
        for (i = 0; i < ((CONFIG_SYS_NUM_TLBCAMS+31)/32); i++)
-               gd->used_tlb_cams[i] = 0;
+               gd->arch.used_tlb_cams[i] = 0;
 
        /* walk all the entries */
        for (i = 0; i < num_cam; i++) {
@@ -133,7 +117,7 @@ int find_free_tlbcam(void)
        u32 idx;
 
        for (i = 0; i < ((CONFIG_SYS_NUM_TLBCAMS+31)/32); i++) {
-               idx = ffz(gd->used_tlb_cams[i]);
+               idx = ffz(gd->arch.used_tlb_cams[i]);
 
                if (idx != 32)
                        break;
@@ -156,6 +140,13 @@ void set_tlb(u8 tlb, u32 epn, u64 rpn,
        if (tlb == 1)
                use_tlb_cam(esel);
 
+       if ((mfspr(SPRN_MMUCFG) & MMUCFG_MAVN) == MMUCFG_MAVN_V1 &&
+           tsize & 1) {
+               printf("%s: bad tsize %d on entry %d at 0x%08x\n",
+                       __func__, tsize, tlb, epn);
+               return;
+       }
+
        _mas0 = FSL_BOOKE_MAS0(tlb, esel, 0);
        _mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize);
        _mas2 = FSL_BOOKE_MAS2(epn, wimge);
@@ -172,7 +163,7 @@ void set_tlb(u8 tlb, u32 epn, u64 rpn,
 
 void disable_tlb(u8 esel)
 {
-       u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+       u32 _mas0, _mas1, _mas2, _mas3;
 
        free_tlb_cam(esel);
 
@@ -180,14 +171,13 @@ void disable_tlb(u8 esel)
        _mas1 = 0;
        _mas2 = 0;
        _mas3 = 0;
-       _mas7 = 0;
 
        mtspr(MAS0, _mas0);
        mtspr(MAS1, _mas1);
        mtspr(MAS2, _mas2);
        mtspr(MAS3, _mas3);
 #ifdef CONFIG_ENABLE_36BIT_PHYS
-       mtspr(MAS7, _mas7);
+       mtspr(MAS7, 0);
 #endif
        asm volatile("isync;msync;tlbwe;isync");
 
@@ -250,23 +240,29 @@ setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg)
 {
        int i;
        unsigned int tlb_size;
-       unsigned int wimge = 0;
+       unsigned int wimge = MAS2_M;
        unsigned int ram_tlb_address = (unsigned int)CONFIG_SYS_DDR_SDRAM_BASE;
-       unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf;
+       unsigned int max_cam, tsize_mask;
        u64 size, memsize = (u64)memsize_in_meg << 20;
 
 #ifdef CONFIG_SYS_PPC_DDR_WIMGE
        wimge = CONFIG_SYS_PPC_DDR_WIMGE;
 #endif
        size = min(memsize, CONFIG_MAX_MEM_MAPPED);
-
-       /* Convert (4^max) kB to (2^max) bytes */
-       max_cam = max_cam * 2 + 10;
+       if ((mfspr(SPRN_MMUCFG) & MMUCFG_MAVN) == MMUCFG_MAVN_V1) {
+               /* Convert (4^max) kB to (2^max) bytes */
+               max_cam = ((mfspr(SPRN_TLB1CFG) >> 16) & 0xf) * 2 + 10;
+               tsize_mask = ~1U;
+       } else {
+               /* Convert (2^max) kB to (2^max) bytes */
+               max_cam = __ilog2(mfspr(SPRN_TLB1PS)) + 10;
+               tsize_mask = ~0U;
+       }
 
        for (i = 0; size && i < 8; i++) {
                int ram_tlb_index = find_free_tlbcam();
-               u32 camsize = __ilog2_u64(size) & ~1U;
-               u32 align = __ilog2(ram_tlb_address) & ~1U;
+               u32 camsize = __ilog2_u64(size) & tsize_mask;
+               u32 align = __ilog2(ram_tlb_address) & tsize_mask;
 
                if (ram_tlb_index == -1)
                        break;
@@ -278,7 +274,7 @@ setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg)
                if (camsize > max_cam)
                        camsize = max_cam;
 
-               tlb_size = (camsize - 10) / 2;
+               tlb_size = camsize - 10;
 
                set_tlb(1, ram_tlb_address, p_addr,
                        MAS3_SX|MAS3_SW|MAS3_SR, wimge,
@@ -329,4 +325,4 @@ void clear_ddr_tlbs(unsigned int memsize_in_meg)
 }
 
 
-#endif /* !CONFIG_NAND_SPL */
+#endif /* not SPL */