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Explicitly enable MSR mailbox

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-01-23 21:56:00 +01:00
parent 9b4ad415e6
commit 0889c3401c
2 changed files with 9 additions and 3 deletions
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4
grub-core/boot/mips/yeeloong/fwstart.S
View file

@ -66,6 +66,10 @@ retry_cs5536:
move $a0, $t4
/* Initialise SMBus controller. */
lui $t0, %hi(GRUB_MACHINE_PCI_CONFSPACE)
li $t1, GRUB_CS5536_MSR_MAILBOX_CONFIG_ENABLED
sw $t1, (%lo(GRUB_MACHINE_PCI_CONFSPACE) + GRUB_CS5536_MSR_MAILBOX_CONFIG) ($t0)
/* Set GPIO LBAR. */
lui $a0, %hi(GRUB_CS5536_MSR_GPIO_BAR)
addiu $a0, $a0, %lo(GRUB_CS5536_MSR_GPIO_BAR)

2
include/grub/cs5536.h
View file

@ -26,6 +26,8 @@
#endif
#define GRUB_CS5536_PCIID 0x208f1022
#define GRUB_CS5536_MSR_MAILBOX_CONFIG_ENABLED 0x1
#define GRUB_CS5536_MSR_MAILBOX_CONFIG 0xf0
#define GRUB_CS5536_MSR_MAILBOX_ADDR 0xf4
#define GRUB_CS5536_MSR_MAILBOX_DATA0 0xf8
#define GRUB_CS5536_MSR_MAILBOX_DATA1 0xfc