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authorSimon Glass <sjg@chromium.org>2015-03-05 12:25:32 -0700
committerSimon Glass <sjg@chromium.org>2015-04-18 11:11:09 -0600
commit801f4f1bbc5ae838cdd50df09895dc275726d23a (patch)
tree0396a350136990d52eef97906aac18de85e6d4f7
parenta219daeafef4df1b219db68c80116d82113c82b2 (diff)
dm: x86: pci: Convert coreboot to use driver model for pci
Move coreboot-x86 over to driver model for PCI. Signed-off-by: Simon Glass <sjg@chromium.org>
-rw-r--r--arch/x86/cpu/coreboot/pci.c63
-rw-r--r--arch/x86/dts/chromebook_link.dts7
-rw-r--r--board/google/chromebook_link/link.c9
-rw-r--r--configs/coreboot-x86_defconfig1
-rw-r--r--include/dm/uclass-id.h1
5 files changed, 34 insertions, 47 deletions
diff --git a/arch/x86/cpu/coreboot/pci.c b/arch/x86/cpu/coreboot/pci.c
index c9983f15889..fa415dd42be 100644
--- a/arch/x86/cpu/coreboot/pci.c
+++ b/arch/x86/cpu/coreboot/pci.c
@@ -10,58 +10,27 @@
*/
#include <common.h>
+#include <dm.h>
+#include <errno.h>
#include <pci.h>
+#include <asm/io.h>
#include <asm/pci.h>
DECLARE_GLOBAL_DATA_PTR;
-static void config_pci_bridge(struct pci_controller *hose, pci_dev_t dev,
- struct pci_config_table *table)
-{
- u8 secondary;
- hose->read_byte(hose, dev, PCI_SECONDARY_BUS, &secondary);
- hose->last_busno = max(hose->last_busno, (int)secondary);
- pci_hose_scan_bus(hose, secondary);
-}
-
-static struct pci_config_table pci_coreboot_config_table[] = {
- /* vendor, device, class, bus, dev, func */
- { PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_BRIDGE_PCI,
- PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, &config_pci_bridge },
- {}
+static const struct dm_pci_ops pci_x86_ops = {
+ .read_config = pci_x86_read_config,
+ .write_config = pci_x86_write_config,
};
-void board_pci_setup_hose(struct pci_controller *hose)
-{
- hose->config_table = pci_coreboot_config_table;
- hose->first_busno = 0;
- hose->last_busno = 0;
-
- /* PCI memory space */
- pci_set_region(hose->regions + 0,
- CONFIG_PCI_MEM_BUS,
- CONFIG_PCI_MEM_PHYS,
- CONFIG_PCI_MEM_SIZE,
- PCI_REGION_MEM);
-
- /* PCI IO space */
- pci_set_region(hose->regions + 1,
- CONFIG_PCI_IO_BUS,
- CONFIG_PCI_IO_PHYS,
- CONFIG_PCI_IO_SIZE,
- PCI_REGION_IO);
-
- pci_set_region(hose->regions + 2,
- CONFIG_PCI_PREF_BUS,
- CONFIG_PCI_PREF_PHYS,
- CONFIG_PCI_PREF_SIZE,
- PCI_REGION_PREFETCH);
-
- pci_set_region(hose->regions + 3,
- 0,
- 0,
- gd->ram_size,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
+static const struct udevice_id pci_x86_ids[] = {
+ { .compatible = "pci-x86" },
+ { }
+};
- hose->region_count = 4;
-}
+U_BOOT_DRIVER(pci_x86_drv) = {
+ .name = "pci_x86",
+ .id = UCLASS_PCI,
+ .of_match = pci_x86_ids,
+ .ops = &pci_x86_ops,
+};
diff --git a/arch/x86/dts/chromebook_link.dts b/arch/x86/dts/chromebook_link.dts
index 45ada610b34..cdbdb6827e4 100644
--- a/arch/x86/dts/chromebook_link.dts
+++ b/arch/x86/dts/chromebook_link.dts
@@ -172,6 +172,13 @@
};
pci {
+ compatible = "intel,pci-ivybridge", "pci-x86";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ u-boot,dm-pre-reloc;
+ ranges = <0x02000000 0x0 0xe0000000 0xe0000000 0 0x10000000
+ 0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
+ 0x01000000 0x0 0x1000 0x1000 0 0xefff>;
sata {
compatible = "intel,pantherpoint-ahci";
intel,sata-mode = "ahci";
diff --git a/board/google/chromebook_link/link.c b/board/google/chromebook_link/link.c
index 9978e92006d..8c04cb82802 100644
--- a/board/google/chromebook_link/link.c
+++ b/board/google/chromebook_link/link.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <cros_ec.h>
+#include <dm.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/pci.h>
@@ -13,6 +14,14 @@
int arch_early_init_r(void)
{
+ struct udevice *dev;
+ int ret;
+
+ /* Make sure the platform controller hub is up and running */
+ ret = uclass_get_device(UCLASS_PCH, 0, &dev);
+ if (ret)
+ return ret;
+
if (cros_ec_board_init())
return -1;
diff --git a/configs/coreboot-x86_defconfig b/configs/coreboot-x86_defconfig
index 3cc034a98bb..0249172feb3 100644
--- a/configs/coreboot-x86_defconfig
+++ b/configs/coreboot-x86_defconfig
@@ -2,3 +2,4 @@ CONFIG_SYS_EXTRA_OPTIONS="SYS_TEXT_BASE=0x01110000"
CONFIG_X86=y
CONFIG_TARGET_COREBOOT=y
CONFIG_OF_CONTROL=y
+CONFIG_DM_PCI=y
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h
index 0b6e85037ab..047ac1504db 100644
--- a/include/dm/uclass-id.h
+++ b/include/dm/uclass-id.h
@@ -37,6 +37,7 @@ enum uclass_id {
UCLASS_MOD_EXP, /* RSA Mod Exp device */
UCLASS_PCI, /* PCI bus */
UCLASS_PCI_GENERIC, /* Generic PCI bus device */
+ UCLASS_PCH, /* x86 platform controller hub */
UCLASS_COUNT,
UCLASS_INVALID = -1,