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authorArthur Heymans <arthur@aheymans.xyz>2019-11-09 14:19:04 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-11-12 18:22:57 +0000
commitfecf77770b8e68b9ef82021ca53c31db93736d93 (patch)
tree001fba539061f4075699fc98e02b3153259477e9 /src/mainboard/ibase/mb899
parent675cb9152e6704383cf402c55758ddea2c7a1e05 (diff)
sb/intel/i82801gx: Add common LPC decode code
Generic LPC decode ranges can now be set from the devicetree. Change-Id: I1065ec770ad3a743286859efa39dca09ccb733a1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36700 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/mainboard/ibase/mb899')
-rw-r--r--src/mainboard/ibase/mb899/devicetree.cb3
-rw-r--r--src/mainboard/ibase/mb899/romstage.c18
2 files changed, 4 insertions, 17 deletions
diff --git a/src/mainboard/ibase/mb899/devicetree.cb b/src/mainboard/ibase/mb899/devicetree.cb
index 97f7a7b49d..78743bd453 100644
--- a/src/mainboard/ibase/mb899/devicetree.cb
+++ b/src/mainboard/ibase/mb899/devicetree.cb
@@ -39,6 +39,9 @@ chip northbridge/intel/i945
register "c3_latency" = "85"
register "p_cnt_throttling_supported" = "0"
+ register "gen1_dec" = "0x00fc0291"
+ register "gen4_dec" = "0x00000301"
+
#device pci 1b.0 on end # High Definition Audio
device pci 1c.0 on end # PCIe
device pci 1c.1 on end # PCIe
diff --git a/src/mainboard/ibase/mb899/romstage.c b/src/mainboard/ibase/mb899/romstage.c
index 3b17e3b634..fd258af554 100644
--- a/src/mainboard/ibase/mb899/romstage.c
+++ b/src/mainboard/ibase/mb899/romstage.c
@@ -32,22 +32,6 @@
#define SERIAL_DEV PNP_DEV(0x4e, W83627EHG_SP1)
#define SUPERIO_DEV PNP_DEV(0x4e, 0)
-static void ich7_enable_lpc(void)
-{
- // Enable Serial IRQ
- pci_write_config8(PCI_DEV(0, 0x1f, 0), SERIRQ_CNTL, 0xd0);
- // Set COM1/COM2 decode range
- pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_IO_DEC, 0x0010);
- // Enable COM1/COM2/KBD/SuperIO1+2
- pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_EN, CNF2_LPC_EN
- | CNF1_LPC_EN | KBC_LPC_EN | FDD_LPC_EN | COMA_LPC_EN
- | COMB_LPC_EN);
- // Enable HWM at 0x290
- pci_write_config32(PCI_DEV(0, 0x1f, 0), GEN1_DEC, 0x00fc0291);
- // io 0x300 decode
- pci_write_config32(PCI_DEV(0, 0x1f, 0), GEN4_DEC, 0x00000301);
-}
-
/* This box has one superio
* Also set up the GPIOs from the beginning. This is the "no schematic
* but safe anyways" method.
@@ -178,7 +162,7 @@ void mainboard_romstage_entry(void)
enable_lapic();
- ich7_enable_lpc();
+ i82801gx_lpc_setup();
early_superio_config_w83627ehg();
/* Set up the console */