From 3111d32c494e8251b90917447796a7206b757e1e Mon Sep 17 00:00:00 2001 From: Becky Bruce Date: Thu, 6 Nov 2008 17:37:35 -0600 Subject: mpc8641: Support 36-bit physical addressing This patch creates a memory map with all the devices in 36-bit physical space, in addition to the 32-bit map. The CCSR relocation is moved (again, sorry) to allow for the physical address to be 36 bits - this requires translation to be enabled. With 36-bit physical addressing enabled, we are no longer running with VA=PA translations. This means we have to distinguish between the two in the config file. The existing region name is used to indicate the virtual address, and a _PHYS variety is created to represent the physical address. Large physical addressing is not enabled by default. Set CONFIG_PHYS_64BIT in the config file to turn this on. Signed-off-by: Becky Bruce --- board/freescale/mpc8641hpcn/law.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'board') diff --git a/board/freescale/mpc8641hpcn/law.c b/board/freescale/mpc8641hpcn/law.c index 669a091..bd357b8 100644 --- a/board/freescale/mpc8641hpcn/law.c +++ b/board/freescale/mpc8641hpcn/law.c @@ -31,12 +31,13 @@ * LAW(Local Access Window) configuration: * * 0x0000_0000 0x7fff_ffff DDR 2G - * if PCI + * if PCI (prepend 0xc_0000_0000 if CONFIG_PHYS_64BIT) * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M * 0xa000_0000 0xbfff_ffff PCI2 MEM 512M - * else if RIO + * else if RIO (prepend 0xc_0000_0000 if CONFIG_PHYS_64BIT) * 0x8000_0000 0x9fff_ffff RapidIO 512M * endif + * (prepend 0xf_0000_0000 if CONFIG_PHYS_64BIT) * 0xffc0_0000 0xffc0_ffff PCI1 IO 64K * 0xffc1_0000 0xffc1_ffff PCI2 IO 64K * 0xffe0_0000 0xffef_ffff CCSRBAR 1M @@ -53,15 +54,15 @@ struct law_entry law_table[] = { SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR_1), #endif #ifdef CONFIG_PCI - SET_LAW(CONFIG_SYS_PCI1_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_1), - SET_LAW(CONFIG_SYS_PCI2_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_2), + SET_LAW(CONFIG_SYS_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI_1), + SET_LAW(CONFIG_SYS_PCI2_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI_2), SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCI_1), SET_LAW(CONFIG_SYS_PCI2_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCI_2), #elif defined(CONFIG_RIO) SET_LAW(CONFIG_SYS_RIO_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_RIO), #endif - SET_LAW(PIXIS_BASE, LAW_SIZE_64K, LAW_TRGT_IF_LBC), - SET_LAW(CONFIG_SYS_FLASH_BASE, LAW_SIZE_8M, LAW_TRGT_IF_LBC), + SET_LAW(PIXIS_BASE_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_LBC), + SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_LBC), }; int num_law_entries = ARRAY_SIZE(law_table); -- cgit v1.1