2 * Copyright 2009 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 /* We run cpu_init_early_f in AS = 1 */
29 void cpu_init_early_f(void)
31 u32 mas0, mas1, mas2, mas3, mas7;
33 #ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
34 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
37 /* Pointer is writable since we allocated a register for it */
38 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
41 * Clear initial global data
42 * we don't use memset so we can share this code with NAND_SPL
44 for (i = 0; i < sizeof(gd_t); i++)
47 mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(13);
48 mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_1M);
49 mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G);
50 mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
51 mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS);
53 write_tlb(mas0, mas1, mas2, mas3, mas7);
56 * Work Around for IFC Erratum A-003549. This issue is P1010
57 * specific. LCLK(a free running clk signal) is muxed with IFC_CS3 on P1010 SOC
58 * Hence specifically selecting CS3.
60 #ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
61 setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_LCLK_IFC_CS3);