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| author | Angel Pons <th3fanbus@gmail.com> | 2021-06-28 14:11:38 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-07-01 09:42:55 +0000 |
| commit | 5124c131ba89145dfa481016038fbc8f26a86656 (patch) | |
| tree | 5afcd3c59cc2eed286d254b4c131f69edd79aefa /src/mainboard | |
| parent | 3b1a9944aa58f781a7a6e9c86ed9bde56fa8074e (diff) | |
| download | coreboot-5124c131ba89145dfa481016038fbc8f26a86656.tar.gz coreboot-5124c131ba89145dfa481016038fbc8f26a86656.tar.bz2 coreboot-5124c131ba89145dfa481016038fbc8f26a86656.zip | |
mb/emulation/qemu-i440fx: Tidy up PAM register writes
Tidy up the code that programs the PAM (Programmable Attribute Map)
registers. Introduce the `D0F0_PAM` macro and use it to replace the
magic `0x59` and `0x5a` values in the code. Adjust the range of the
for-loop to work with the `D0F0_PAM` macro, and properly indent the
loop's body.
Change-Id: I9036425d726ffb69737ea6ed36c7a8f61d9d040a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/emulation/qemu-i440fx/mainboard.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mainboard/emulation/qemu-i440fx/mainboard.c b/src/mainboard/emulation/qemu-i440fx/mainboard.c index bc97554442d6..218c47f0aa75 100644 --- a/src/mainboard/emulation/qemu-i440fx/mainboard.c +++ b/src/mainboard/emulation/qemu-i440fx/mainboard.c @@ -10,15 +10,15 @@ static const unsigned char qemu_i440fx_irqs[] = { 11, 10, 10, 11, }; +#define D0F0_PAM(x) (0x59 + (x)) /* 0-6 */ + static void qemu_nb_init(struct device *dev) { /* Map memory at 0xc0000 - 0xfffff */ int i; - uint8_t v = pci_read_config8(dev, 0x59); - v |= 0x30; - pci_write_config8(dev, 0x59, v); - for (i = 0; i < 6; i++) - pci_write_config8(dev, 0x5a + i, 0x33); + pci_or_config8(dev, D0F0_PAM(0), 0x30); + for (i = 1; i <= 6; i++) + pci_write_config8(dev, D0F0_PAM(i), 0x33); /* This sneaked in here, because Qemu does not emulate a SuperIO chip. */ pc_keyboard_init(NO_AUX_DEVICE); |