diff options
| author | Keith Hui <buurin@gmail.com> | 2020-01-27 18:00:40 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-03-03 07:43:08 +0000 |
| commit | 2f3c37bd6266dba75498f1f629d42a2886dbc756 (patch) | |
| tree | fecc70ec2fad2a50d60f4282fcb7693a573043ff /src | |
| parent | 2b9004de602f98a404b17584ab3e1451f165c1f4 (diff) | |
i82371eb: Roll 82093aa init into isa_init()
This allows reuse of dev and reg32 already available,
and converting the block from #if to simple if.
Change-Id: I7a56f5a170986bbdf3c0c87eb5ead838ad55c659
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/intel/i82371eb/isa.c | 56 |
1 files changed, 22 insertions, 34 deletions
diff --git a/src/southbridge/intel/i82371eb/isa.c b/src/southbridge/intel/i82371eb/isa.c index fefead06e4..bdad959100 100644 --- a/src/southbridge/intel/i82371eb/isa.c +++ b/src/southbridge/intel/i82371eb/isa.c @@ -30,37 +30,6 @@ #include "i82371eb.h" #include "chip.h" -#if CONFIG(IOAPIC) -static void enable_intel_82093aa_ioapic(void) -{ - u16 reg16; - u32 reg32; - u8 ioapic_id = 2; - volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); - struct device *dev; - - dev = dev_find_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_ISA, 0); - - /* Enable IOAPIC. */ - reg16 = pci_read_config16(dev, XBCS); - reg16 |= (1 << 8); /* APIC Chip Select */ - pci_write_config16(dev, XBCS, reg16); - - /* Set the IOAPIC ID. */ - *ioapic_index = 0; - *ioapic_data = ioapic_id << 24; - - /* Read back and verify the IOAPIC ID. */ - *ioapic_index = 0; - reg32 = (*ioapic_data >> 24) & 0x0f; - printk(BIOS_DEBUG, "IOAPIC ID = %x\n", reg32); - if (reg32 != ioapic_id) - die("IOAPIC error!\n"); -} -#endif - static void isa_init(struct device *dev) { u32 reg32; @@ -90,7 +59,6 @@ static void isa_init(struct device *dev) /* Initialize ISA DMA. */ isa_dma_init(); -#if CONFIG(IOAPIC) /* * Unlike most other southbridges the 82371EB doesn't have a built-in * IOAPIC. Instead, 82371EB-based boards that support multiple CPUs @@ -99,8 +67,28 @@ static void isa_init(struct device *dev) * Thus, we can/must only enable the IOAPIC if it actually exists, * i.e. the respective mainboard does "select IOAPIC". */ - enable_intel_82093aa_ioapic(); -#endif + if (CONFIG(IOAPIC)) { + u16 reg16; + u8 ioapic_id = 2; + volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); + volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); + + /* Enable IOAPIC. */ + reg16 = pci_read_config16(dev, XBCS); + reg16 |= (1 << 8); /* APIC Chip Select */ + pci_write_config16(dev, XBCS, reg16); + + /* Set the IOAPIC ID. */ + *ioapic_index = 0; + *ioapic_data = ioapic_id << 24; + + /* Read back and verify the IOAPIC ID. */ + *ioapic_index = 0; + reg32 = (*ioapic_data >> 24) & 0x0f; + printk(BIOS_DEBUG, "IOAPIC ID = %x\n", reg32); + if (reg32 != ioapic_id) + die("IOAPIC error!\n"); + } } static void sb_read_resources(struct device *dev) |