diff options
Diffstat (limited to 'arch/blackfin/kernel/cplb-mpu/cplbinit.c')
-rw-r--r-- | arch/blackfin/kernel/cplb-mpu/cplbinit.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c deleted file mode 100644 index c15fd05f0b09..000000000000 --- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Blackfin CPLB initialization - * - * Copyright 2008-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/module.h> - -#include <asm/blackfin.h> -#include <asm/cplb.h> -#include <asm/cplbinit.h> -#include <asm/mem_map.h> - -struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS]; -struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS]; - -int first_switched_icplb, first_switched_dcplb; -int first_mask_dcplb; - -void __init generate_cplb_tables_cpu(unsigned int cpu) -{ - int i_d, i_i; - unsigned long addr; - unsigned long d_data, i_data; - unsigned long d_cache = 0, i_cache = 0; - - printk(KERN_INFO "MPU: setting up cplb tables with memory protection\n"); - -#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE - i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; -#endif - -#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE - d_cache = CPLB_L1_CHBL; -#ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH - d_cache |= CPLB_L1_AOW | CPLB_WT; -#endif -#endif - - i_d = i_i = 0; - - /* Set up the zero page. */ - dcplb_tbl[cpu][i_d].addr = 0; - dcplb_tbl[cpu][i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB; - - icplb_tbl[cpu][i_i].addr = 0; - icplb_tbl[cpu][i_i++].data = CPLB_VALID | i_cache | CPLB_USER_RD | PAGE_SIZE_1KB; - - /* Cover kernel memory with 4M pages. */ - addr = 0; - d_data = d_cache | CPLB_SUPV_WR | CPLB_VALID | PAGE_SIZE_4MB | CPLB_DIRTY; - i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB; - - for (; addr < memory_start; addr += 4 * 1024 * 1024) { - dcplb_tbl[cpu][i_d].addr = addr; - dcplb_tbl[cpu][i_d++].data = d_data; - icplb_tbl[cpu][i_i].addr = addr; - icplb_tbl[cpu][i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0); - } - -#ifdef CONFIG_ROMKERNEL - /* Cover kernel XIP flash area */ - addr = CONFIG_ROM_BASE & ~(4 * 1024 * 1024 - 1); - dcplb_tbl[cpu][i_d].addr = addr; - dcplb_tbl[cpu][i_d++].data = d_data | CPLB_USER_RD; - icplb_tbl[cpu][i_i].addr = addr; - icplb_tbl[cpu][i_i++].data = i_data | CPLB_USER_RD; -#endif - - /* Cover L1 memory. One 4M area for code and data each is enough. */ -#if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0 - dcplb_tbl[cpu][i_d].addr = get_l1_data_a_start_cpu(cpu); - dcplb_tbl[cpu][i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB; -#endif -#if L1_CODE_LENGTH > 0 - icplb_tbl[cpu][i_i].addr = get_l1_code_start_cpu(cpu); - icplb_tbl[cpu][i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB; -#endif - - /* Cover L2 memory */ -#if L2_LENGTH > 0 - dcplb_tbl[cpu][i_d].addr = L2_START; - dcplb_tbl[cpu][i_d++].data = L2_DMEMORY; - icplb_tbl[cpu][i_i].addr = L2_START; - icplb_tbl[cpu][i_i++].data = L2_IMEMORY; -#endif - - first_mask_dcplb = i_d; - first_switched_dcplb = i_d + (1 << page_mask_order); - first_switched_icplb = i_i; - - while (i_d < MAX_CPLBS) - dcplb_tbl[cpu][i_d++].data = 0; - while (i_i < MAX_CPLBS) - icplb_tbl[cpu][i_i++].data = 0; -} - -void __init generate_cplb_tables_all(void) -{ -} |