2 * Copyright 2009-2011 Freescale Semiconductor, Inc
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 #include <asm/processor.h>
23 #include <asm/fsl_law.h>
26 DECLARE_GLOBAL_DATA_PTR;
28 #if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
31 struct fsl_ifc *ifc_regs = (void *)CONFIG_SYS_IFC_ADDR;
32 u32 _mas0, _mas1, _mas2, _mas3, _mas7;
33 phys_addr_t flash_phys = CONFIG_SYS_FLASH_BASE_PHYS;
36 * Adjust the TLB we were running out of to match the phys addr of the
37 * chip select we are adjusting and will return to.
39 flash_phys += (~CONFIG_SYS_AMASK0) + 1 - 4*1024*1024;
41 _mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(15);
42 _mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_IPROT |
43 MAS1_TSIZE(BOOKE_PAGESZ_4M);
44 _mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_TEXT_BASE, MAS2_I|MAS2_G);
45 _mas3 = FSL_BOOKE_MAS3(flash_phys, 0, MAS3_SW|MAS3_SR|MAS3_SX);
46 _mas7 = FSL_BOOKE_MAS7(flash_phys);
54 asm volatile("isync;msync;tlbwe;isync");
56 out_be32(&(ifc_regs->cspr_cs[0].cspr), CONFIG_SYS_CSPR0);
57 out_be32(&(ifc_regs->csor_cs[0].csor), CONFIG_SYS_CSOR0);
58 out_be32(&(ifc_regs->amask_cs[0].amask), CONFIG_SYS_AMASK0);
64 /* We run cpu_init_early_f in AS = 1 */
65 void cpu_init_early_f(void)
67 u32 mas0, mas1, mas2, mas3, mas7;
69 #ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
70 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
72 #if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
73 ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
75 void (*setup_ifc_sram)(void);
78 /* Pointer is writable since we allocated a register for it */
79 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
82 * Clear initial global data
83 * we don't use memset so we can share this code with NAND_SPL
85 for (i = 0; i < sizeof(gd_t); i++)
88 mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(13);
89 mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_1M);
90 mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G);
91 mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
92 mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS);
94 write_tlb(mas0, mas1, mas2, mas3, mas7);
97 * Work Around for IFC Erratum A-003549. This issue is P1010
98 * specific. LCLK(a free running clk signal) is muxed with IFC_CS3 on P1010 SOC
99 * Hence specifically selecting CS3.
101 #ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
102 setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_LCLK_IFC_CS3);
108 * Work Around for IFC Erratum A003399, issue will hit only when execution
111 #if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
112 #define SRAM_BASE_ADDR (0x00000000)
114 mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(9);
115 mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS |
116 MAS1_TSIZE(BOOKE_PAGESZ_1M);
117 mas2 = FSL_BOOKE_MAS2(SRAM_BASE_ADDR, MAS2_I);
118 mas3 = FSL_BOOKE_MAS3(SRAM_BASE_ADDR, 0, MAS3_SX|MAS3_SW|MAS3_SR);
119 mas7 = FSL_BOOKE_MAS7(0);
121 write_tlb(mas0, mas1, mas2, mas3, mas7);
123 out_be32(&l2cache->l2srbar0, SRAM_BASE_ADDR);
125 out_be32(&l2cache->l2errdis,
126 (MPC85xx_L2ERRDIS_MBECC | MPC85xx_L2ERRDIS_SBECC));
128 out_be32(&l2cache->l2ctl,
129 (MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2SRAM_ENTIRE));
132 * Copy the code in setup_ifc to L2SRAM. Do a word copy
133 * because NOR Flash on P1010 does not support byte
134 * access (Erratum IFC-A002769)
136 setup_ifc_sram = (void *)SRAM_BASE_ADDR;
137 dst = (u32 *) SRAM_BASE_ADDR;
138 src = (u32 *) setup_ifc;
139 for (i = 0; i < 1024; i++)
145 clrbits_be32(&l2cache->l2ctl,
147 MPC85xx_L2CTL_L2SRAM_ENTIRE));
148 out_be32(&l2cache->l2srbar0, 0x0);
153 #if defined(CONFIG_SECURE_BOOT)
154 /* Disable the TLBs created by ISBC */
155 for (i = CONFIG_SYS_ISBC_START_TLB;
156 i < CONFIG_SYS_ISBC_START_TLB + CONFIG_SYS_ISBC_NUM_TLBS; i++)