[coreboot] [PATCH] Enable maximum decoded range for VT8237*

[Rudolf Marek]

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Hello,

Attached patch adds support for tinybootblock on VT8237* to decode whole flash
independent of strapping, making larger flashes work again (as it was in
pre-tiny bootblock era)

Signed-off-by: Rudolf Marek

I had a strange problem:

#include <arch/io.h>
#include <arch/romcc_io.h>
#include <device/pci_ids.h>

static void bootblock_southbridge_init(void) {

device_t dev;

/* Power management controller */
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA,
    			      PCI_DEVICE_ID_VIA_VT8237R_LPC), 0);

if (dev == PCI_DEV_INVALID) {
/* Power management controller */
    dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA, 		
    				PCI_DEVICE_ID_VIA_VT8237S_LPC), 0);

if (dev == PCI_DEV_INVALID)
    return;
}
    pci_write_config8(dev, 0x41, 0x7f);
}

did not reach the pci write for some reason. This code is a copy from
enable_rom_decode() so it should work.

Thanks,
Rudolf
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