summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPatrick Rudolph <patrick.rudolph@9elements.com>2019-03-24 12:27:31 +0100
committerNico Huber <nico.h@gmx.de>2019-04-18 09:57:51 +0000
commit45d4b17f5e05cd493f19e69900a38ac805eb63b5 (patch)
treead0a7cd24289d204e00209aca5ae24689a05a496
parentcbf27fd8998bf8125de8407b4e64ab726a738962 (diff)
downloadcoreboot-45d4b17f5e05cd493f19e69900a38ac805eb63b5.tar.xz
nb/intel/sandybridge: Move southbridge code to bd82x6x
Move the southbridge code to bd82x6x folder similar to the lynxpoint implementation. Tested on Lenovo T520 (Intel Sandy Bridge). Still boots to OS, no errors visible in dmesg. Change-Id: I8afc9f966033f45823f5dfde279e0f66de165e93 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32035 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
-rw-r--r--src/northbridge/intel/sandybridge/early_init.c14
-rw-r--r--src/northbridge/intel/sandybridge/romstage.c14
-rw-r--r--src/southbridge/intel/bd82x6x/early_pch.c34
-rw-r--r--src/southbridge/intel/bd82x6x/pch.h1
4 files changed, 39 insertions, 24 deletions
diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c
index ad579c6fc3..b923065091 100644
--- a/src/northbridge/intel/sandybridge/early_init.c
+++ b/src/northbridge/intel/sandybridge/early_init.c
@@ -27,20 +27,6 @@
static void sandybridge_setup_bars(void)
{
- /* Setting up Southbridge. In the northbridge code. */
- printk(BIOS_DEBUG, "Setting up static southbridge registers...");
- pci_write_config32(PCH_LPC_DEV, RCBA, (uintptr_t)DEFAULT_RCBA | 1);
-
- pci_write_config32(PCH_LPC_DEV, PMBASE, DEFAULT_PMBASE | 1);
- pci_write_config8(PCH_LPC_DEV, ACPI_CNTL, 0x80); /* Enable ACPI BAR */
-
- printk(BIOS_DEBUG, " done.\n");
-
- printk(BIOS_DEBUG, "Disabling Watchdog reboot...");
- RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */
- outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */
- printk(BIOS_DEBUG, " done.\n");
-
printk(BIOS_DEBUG, "Setting up static northbridge registers...");
/* Set up all hardcoded northbridge BARs */
pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1);
diff --git a/src/northbridge/intel/sandybridge/romstage.c b/src/northbridge/intel/sandybridge/romstage.c
index 6f2a8f1472..3fab3be85d 100644
--- a/src/northbridge/intel/sandybridge/romstage.c
+++ b/src/northbridge/intel/sandybridge/romstage.c
@@ -28,10 +28,9 @@
#include <device/device.h>
#include <northbridge/intel/sandybridge/chip.h>
#include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/common/gpio.h>
#include <southbridge/intel/common/pmclib.h>
-static void early_pch_init(void)
+static void early_pch_reset_pmcon(void)
{
u8 reg8;
@@ -56,13 +55,8 @@ void mainboard_romstage_entry(unsigned long bist)
if (bist == 0)
enable_lapic();
- pch_enable_lpc();
-
- /* Enable GPIOs */
- pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1);
- pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);
-
- setup_pch_gpios(&mainboard_gpio_map);
+ /* Init LPC, GPIO, BARs, disable watchdog ... */
+ early_pch_init();
/* Initialize superio */
mainboard_config_superio();
@@ -101,7 +95,7 @@ void mainboard_romstage_entry(unsigned long bist)
post_code(0x3b);
/* Perform some initialization that must run before stage2 */
- early_pch_init();
+ early_pch_reset_pmcon();
post_code(0x3c);
southbridge_configure_default_intmap();
diff --git a/src/southbridge/intel/bd82x6x/early_pch.c b/src/southbridge/intel/bd82x6x/early_pch.c
index 88436213a0..a50a159668 100644
--- a/src/southbridge/intel/bd82x6x/early_pch.c
+++ b/src/southbridge/intel/bd82x6x/early_pch.c
@@ -18,6 +18,9 @@
#include <arch/cbfs.h>
#include <ip_checksum.h>
#include <device/pci_def.h>
+#include <southbridge/intel/common/gpio.h>
+#include <southbridge/intel/common/pmbase.h>
+
/* For DMI bar. */
#include <northbridge/intel/sandybridge/sandybridge.h>
@@ -367,3 +370,34 @@ early_pch_init_native (void)
init_dmi();
}
+
+static void pch_enable_bars(void)
+{
+ pci_write_config32(PCH_LPC_DEV, RCBA, (uintptr_t)DEFAULT_RCBA | 1);
+
+ pci_write_config32(PCH_LPC_DEV, PMBASE, DEFAULT_PMBASE | 1);
+
+ pci_write_config8(PCH_LPC_DEV, ACPI_CNTL, 0x80);
+
+ pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE | 1);
+
+ /* Enable GPIO functionality. */
+ pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);
+}
+
+static void pch_generic_setup(void)
+{
+ RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */
+ write_pmbase16(TCO1_CNT, 1 << 11); /* halt timer */
+}
+
+void early_pch_init(void)
+{
+ pch_enable_lpc();
+
+ pch_enable_bars();
+
+ pch_generic_setup();
+
+ setup_pch_gpios(&mainboard_gpio_map);
+}
diff --git a/src/southbridge/intel/bd82x6x/pch.h b/src/southbridge/intel/bd82x6x/pch.h
index 741996531f..21b603108a 100644
--- a/src/southbridge/intel/bd82x6x/pch.h
+++ b/src/southbridge/intel/bd82x6x/pch.h
@@ -76,6 +76,7 @@ void southbridge_configure_default_intmap(void);
void southbridge_rcba_config(void);
void mainboard_rcba_config(void);
void early_pch_init_native(void);
+void early_pch_init(void);
struct southbridge_usb_port
{