pci: Make pci apis usable before relocation
Introduce a gd->hose to save the pci hose in the early phase so that
apis in drivers/pci/pci.c can be used before relocation. Architecture
codes need assign a valid gd->hose in the early phase.
Some variables are declared as static so change them to be either
stack variable or global data member so that they can be used before
relocation, except the 'indent' used by CONFIG_PCI_SCAN_SHOW which
just affects some print format.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
index 1eee08b..ab1aaaa 100644
--- a/arch/x86/cpu/pci.c
+++ b/arch/x86/cpu/pci.c
@@ -30,7 +30,7 @@
board_pci_setup_hose(hose);
pci_setup_type1(hose);
hose->last_busno = pci_hose_scan(hose);
- gd->arch.hose = hose;
+ gd->hose = hose;
*hosep = hose;
return 0;
@@ -51,7 +51,7 @@
struct pci_controller *hose = &x86_hose;
/* Stop using the early hose */
- gd->arch.hose = NULL;
+ gd->hose = NULL;
board_pci_setup_hose(hose);
pci_setup_type1(hose);
@@ -64,8 +64,8 @@
static struct pci_controller *get_hose(void)
{
- if (gd->arch.hose)
- return gd->arch.hose;
+ if (gd->hose)
+ return gd->hose;
return pci_bus_to_hose(0);
}
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index 03d491a..aeab3e5 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -43,7 +43,6 @@
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 */
enum pei_boot_mode_t pei_boot_mode;
const struct pch_gpio_map *gpio_map; /* board GPIO map */
struct memory_info meminfo; /* Memory information */
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index ac1a808..c30dd4c 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -29,7 +29,7 @@
* 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
+ * called before relocation. The hose will be stored in gd->hose for
* later use, but will become invalid one DRAM is available.
*/
int pci_early_init_hose(struct pci_controller **hosep);