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https://github.com/AsahiLinux/u-boot
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3480879a55
U-Boot for initial L2 SRAM uses L2 memory-mapping mode and not L2 with locked lines. P2020 reference manual about L2 memory-mapping mode says: Accesses to memory-mapped SRAM are cacheable only in the corresponding e500 L1 caches. So there is no need to set Caching-Inhibit I-bit for second part of initial L2 SRAM mapping in TLB entry. Remove it. First part of initial L2 SRAM mapping already does not have I-bit set. For more details see also: https://lore.kernel.org/u-boot/20220508150844.qqxg452rs4wtf5bs@pali/ Signed-off-by: Pali Rohár <pali@kernel.org>
106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2010-2011 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <asm/mmu.h>
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struct fsl_e_tlb_entry tlb_table[] = {
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/* TLB 0 - for temp stack in cache */
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024 ,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 4 * 1024,
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MAS3_SX|MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 ,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 8 * 1024,
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MAS3_SX|MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 ,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 12 * 1024,
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MAS3_SX|MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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/* TLB 1 */
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/* *I*** - Covers boot page */
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SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
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0, 0, BOOKE_PAGESZ_4K, 1),
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/* *I*G* - CCSRBAR */
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SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 1, BOOKE_PAGESZ_1M, 1),
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#ifndef CONFIG_SPL_BUILD
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/* W**G* - Flash/promjet, localbus */
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/* This will be changed to *I*G* after relocation to RAM. */
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SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
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MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
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0, 2, BOOKE_PAGESZ_64M, 1),
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#ifdef CONFIG_PCI
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/* *I*G* - PCI memory 1.5G */
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 3, BOOKE_PAGESZ_1G, 1),
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/* *I*G* - PCI I/O effective: 192K */
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 4, BOOKE_PAGESZ_256K, 1),
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#endif
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#ifdef CONFIG_VSC7385_ENET
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/* *I*G - VSC7385 Switch */
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SET_TLB_ENTRY(1, CONFIG_SYS_VSC7385_BASE, CONFIG_SYS_VSC7385_BASE_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 5, BOOKE_PAGESZ_1M, 1),
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#endif
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SET_TLB_ENTRY(1, CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_BASE_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 6, BOOKE_PAGESZ_1M, 1),
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#endif /* not SPL */
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#ifdef CONFIG_SYS_NAND_BASE
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/* *I*G - NAND */
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SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 7, BOOKE_PAGESZ_1M, 1),
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#endif
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#if defined(CONFIG_SYS_RAMBOOT) || !CONFIG_IS_ENABLED(COMMON_INIT_DDR)
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/* **M** - 1G DDR for eSDHC/eSPI/NAND boot */
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SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_M,
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0, 8, BOOKE_PAGESZ_1G, 1),
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#if defined(CONFIG_TARGET_P1020RDB_PD)
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/* **M** - 2G DDR on P1020MBG, map the second 1G */
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SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
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CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_M,
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0, 9, BOOKE_PAGESZ_1G, 1),
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#endif
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#endif /* RAMBOOT/SPL */
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#ifdef CONFIG_SYS_INIT_L2_ADDR
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/* ***G - L2SRAM */
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SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
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0, 11, BOOKE_PAGESZ_256K, 1),
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#if CONFIG_SYS_L2_SIZE >= (256 << 10)
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SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
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CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
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0, 12, BOOKE_PAGESZ_256K, 1)
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#endif
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#endif
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};
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int num_tlb_entries = ARRAY_SIZE(tlb_table);
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