From e8cc3f04b124f757af4528206e60d8eb715ae083 Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Thu, 5 Jun 2008 13:12:10 +0200 Subject: TQM85xx: Change memory map to support Flash memory > 128 MiB Some TQM85xx boards could be equipped with up to 1 GiB (NOR) Flash memory. The current memory map only supports up to 128 MiB Flash. This patch adds the configuration option CONFIG_TQM_BIGFLASH. If set, up to 1 GiB flash is supported. To achieve this, the memory map has to be adjusted in great parts (for example the CCSRBAR is moved from 0xE0000000 to 0xA0000000). If you want to boot Linux with CONFIG_TQM_BIGFLASH set, the new memory map also has to be considered in the kernel (changed CCSRBAR address, changed PCI IO base address, ...). Please use an appropriate Flat Device Tree blob (tqm8548.dtb). Signed-off-by: Martin Krause Signed-off-by: Wolfgang Grandegger --- board/tqc/tqm85xx/law.c | 29 +++++++++++++-- board/tqc/tqm85xx/tlb.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+), 4 deletions(-) (limited to 'board') diff --git a/board/tqc/tqm85xx/law.c b/board/tqc/tqm85xx/law.c index 914ce68..b4e663b 100644 --- a/board/tqc/tqm85xx/law.c +++ b/board/tqc/tqm85xx/law.c @@ -30,6 +30,8 @@ /* * LAW(Local Access Window) configuration: * + * Standard mapping: + * * 0x0000_0000 0x7fff_ffff DDR 2G * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M * 0xc000_0000 0xdfff_ffff RapidIO or PCI express 512M @@ -37,22 +39,41 @@ * 0xe200_0000 0xe2ff_ffff PCI1 IO 16M * 0xe300_0000 0xe3ff_ffff CAN and NAND Flash 16M * 0xef00_0000 0xefff_ffff PCI express IO 16M - * 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M + * 0xfc00_0000 0xffff_ffff FLASH (boot bank) 128M + * + * Big FLASH mapping: + * + * 0x0000_0000 0x7fff_ffff DDR 2G + * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M + * 0xa000_0000 0xa000_ffff CCSR 1M + * 0xa200_0000 0xa2ff_ffff PCI1 IO 16M + * 0xa300_0000 0xa3ff_ffff CAN and NAND Flash 16M + * 0xaf00_0000 0xafff_ffff PCI express IO 16M + * 0xb000_0000 0xbfff_ffff RapidIO or PCI express 256M + * 0xc000_0000 0xffff_ffff FLASH (boot bank) 1G * * Notes: * CCSRBAR and L2-as-SRAM don't need a configured Local Access Window. * If flash is 8M at default position (last 8M), no LAW needed. */ +#ifdef CONFIG_TQM_BIGFLASH +#define LAW_3_SIZE LAW_SIZE_1G +#define LAW_5_SIZE LAW_SIZE_256M +#else +#define LAW_3_SIZE LAW_SIZE_128M +#define LAW_5_SIZE LAW_SIZE_512M +#endif + struct law_entry law_table[] = { SET_LAW_ENTRY (1, CFG_DDR_SDRAM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_DDR), SET_LAW_ENTRY (2, CFG_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI), - SET_LAW_ENTRY (3, CFG_LBC_FLASH_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC), + SET_LAW_ENTRY (3, CFG_LBC_FLASH_BASE, LAW_3_SIZE, LAW_TRGT_IF_LBC), SET_LAW_ENTRY (4, CFG_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI), #ifdef CONFIG_PCIE1 - SET_LAW_ENTRY (5, CFG_PCIE1_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_1), + SET_LAW_ENTRY (5, CFG_PCIE1_MEM_BASE, LAW_5_SIZE, LAW_TRGT_IF_PCIE_1), #else /* !CONFIG_PCIE1 */ - SET_LAW_ENTRY (5, CFG_RIO_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_RIO), + SET_LAW_ENTRY (5, CFG_RIO_MEM_BASE, LAW_5_SIZE, LAW_TRGT_IF_RIO), #endif /* CONFIG_PCIE1 */ #if defined(CONFIG_CAN_DRIVER) || defined(CONFIG_NAND) SET_LAW_ENTRY (6, CFG_CAN_BASE, LAW_SIZE_16M, LAW_TRGT_IF_LBC), diff --git a/board/tqc/tqm85xx/tlb.c b/board/tqc/tqm85xx/tlb.c index 7f4efc1..380448a 100644 --- a/board/tqc/tqm85xx/tlb.c +++ b/board/tqc/tqm85xx/tlb.c @@ -44,6 +44,7 @@ struct fsl_e_tlb_entry tlb_table[] = { MAS3_SX | MAS3_SW | MAS3_SR, 0, 0, 0, BOOKE_PAGESZ_4K, 0), +#ifndef CONFIG_TQM_BIGFLASH /* * TLB 0, 1: 128M Non-cacheable, guarded * 0xf8000000 128M FLASH @@ -146,6 +147,102 @@ struct fsl_e_tlb_entry tlb_table[] = { 0, 9, BOOKE_PAGESZ_16M, 1), #endif /* CONFIG_PCIE */ +#else /* CONFIG_TQM_BIGFLASH */ + + /* + * TLB 0,1,2,3: 1G Non-cacheable, guarded + * 0xc0000000 1G FLASH + * Out of reset this entry is only 4K. + */ + SET_TLB_ENTRY (1, CFG_FLASH_BASE, CFG_FLASH_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 3, BOOKE_PAGESZ_256M, 1), + SET_TLB_ENTRY (1, CFG_FLASH_BASE + 0x10000000, + CFG_FLASH_BASE + 0x10000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 2, BOOKE_PAGESZ_256M, 1), + SET_TLB_ENTRY (1, CFG_FLASH_BASE + 0x20000000, + CFG_FLASH_BASE + 0x20000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 1, BOOKE_PAGESZ_256M, 1), + SET_TLB_ENTRY (1, CFG_FLASH_BASE + 0x30000000, + CFG_FLASH_BASE + 0x30000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 0, BOOKE_PAGESZ_256M, 1), + + /* + * TLB 4: 256M Non-cacheable, guarded + * 0x80000000 256M PCI1 MEM First half + */ + SET_TLB_ENTRY (1, CFG_PCI1_MEM_PHYS, CFG_PCI1_MEM_PHYS, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 4, BOOKE_PAGESZ_256M, 1), + + /* + * TLB 5: 256M Non-cacheable, guarded + * 0x90000000 256M PCI1 MEM Second half + */ + SET_TLB_ENTRY (1, CFG_PCI1_MEM_PHYS + 0x10000000, + CFG_PCI1_MEM_PHYS + 0x10000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 5, BOOKE_PAGESZ_256M, 1), + +#ifdef CONFIG_PCIE1 + /* + * TLB 6: 256M Non-cacheable, guarded + * 0xc0000000 256M PCI express MEM First half + */ + SET_TLB_ENTRY (1, CFG_PCIE1_MEM_BASE, CFG_PCIE1_MEM_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 6, BOOKE_PAGESZ_256M, 1), +#else /* !CONFIG_PCIE */ + /* + * TLB 6: 256M Non-cacheable, guarded + * 0xb0000000 256M Rapid IO MEM First half + */ + SET_TLB_ENTRY (1, CFG_RIO_MEM_BASE, CFG_RIO_MEM_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 6, BOOKE_PAGESZ_256M, 1), + +#endif /* CONFIG_PCIE */ + + /* + * TLB 7: 64M Non-cacheable, guarded + * 0xa0000000 1M CCSRBAR + * 0xa2000000 16M PCI1 IO + * 0xa3000000 16M CAN and NAND Flash + */ + SET_TLB_ENTRY (1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 7, BOOKE_PAGESZ_64M, 1), + + /* + * TLB 8+9: 512M DDR, cache disabled (needed for memory test) + * 0x00000000 512M DDR System memory + * Without SPD EEPROM configured DDR, this must be setup manually. + * Make sure the TLB count at the top of this table is correct. + * Likely it needs to be increased by two for these entries. + */ + SET_TLB_ENTRY (1, CFG_DDR_SDRAM_BASE, CFG_DDR_SDRAM_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 8, BOOKE_PAGESZ_256M, 1), + + SET_TLB_ENTRY (1, CFG_DDR_SDRAM_BASE + 0x10000000, + CFG_DDR_SDRAM_BASE + 0x10000000, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 9, BOOKE_PAGESZ_256M, 1), + +#ifdef CONFIG_PCIE1 + /* + * TLB 10: 16M Non-cacheable, guarded + * 0xaf000000 16M PCI express IO + */ + SET_TLB_ENTRY (1, CFG_PCIE1_IO_BASE, CFG_PCIE1_IO_BASE, + MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G, + 0, 10, BOOKE_PAGESZ_16M, 1), +#endif /* CONFIG_PCIE */ + +#endif /* CONFIG_TQM_BIGFLASH */ }; int num_tlb_entries = ARRAY_SIZE (tlb_table); -- cgit v1.1