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| author | Simon Glass <sjg@chromium.org> | 2014-11-12 22:42:12 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-11-21 07:34:12 +0100 |
| commit | 7430f1086429fa93e80c3951baac90e1c578898a (patch) | |
| tree | 2bf3d1f5cdf7de4b77166eb8d4455bc8c4ebd9ee /arch/x86/include | |
| parent | d188b18f65417a0a6698c43926e3c66b134195b8 (diff) | |
| download | u-boot-imx-7430f1086429fa93e80c3951baac90e1c578898a.zip u-boot-imx-7430f1086429fa93e80c3951baac90e1c578898a.tar.gz u-boot-imx-7430f1086429fa93e80c3951baac90e1c578898a.tar.bz2 | |
x86: Support use of PCI before relocation
Add support for using PCI before SDRAM is available, using early malloc()
and global_data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/global_data.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/pci.h | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 186b97e..d32987b 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -24,6 +24,7 @@ struct arch_global_data { uint32_t tsc_mhz; /* TSC frequency in MHz */ void *new_fdt; /* Relocated FDT */ uint32_t bist; /* Built-in self test value */ + struct pci_controller *hose; /* PCI hose for early use */ }; #endif diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index c160707..6e70a99 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -24,4 +24,13 @@ void pci_setup_type1(struct pci_controller *hose); * store things in 'hose' and not in BSS variables. */ void board_pci_setup_hose(struct pci_controller *hose); + +/** + * pci_early_init_hose() - Set up PCI host before relocation + * + * This allocates memory for, sets up and returns the PCI hose. It can be + * called before relocation. The hose will be stored in gd->arch.hose for + * later use, but will become invalid one DRAM is available. + */ +int pci_early_init_hose(struct pci_controller **hosep); #endif |