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Inagua: mainboard specific GPIO setting 

Pcie device connected to Hudson/sb800 southbridge GPP training can works,
by applying this mainbaind specific GPIO PCIE De-Assert setting.

Change-Id: I563b2e6354a958a28f5d0162e7a4d60aa437fb9b
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Reviewed-on: http://review.coreboot.org/543
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
This commit is contained in:
Kerry Sheh 2012-01-19 13:18:36 +08:00 committed by Marc Jones
parent d0790694b0
commit 19329c90d3
1 changed files with 27 additions and 1 deletions
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28
src/mainboard/amd/inagua/mainboard.c
View File

@ -26,6 +26,7 @@
#include <cpu/amd/mtrr.h>
#include <device/pci_def.h>
//#include <southbridge/amd/sb800/sb800.h>
#include "SBPLATFORM.h" /* Platfrom Specific Definitions */
#include "chip.h"
void set_pcie_reset(void);
@ -40,11 +41,34 @@ void set_pcie_reset(void)
}
/**
* TODO
* mainboard specific SB CIMx callback
*/
void set_pcie_dereset(void)
{
/**
* GPIO32 Pcie Device DeAssert for APU
* GPIO25 Pcie LAN, APU GPP2
* GPIO02 MINIPCIE SLOT1, APU GPP3
* GPIO50 Pcie Device DeAssert for Hudson Southbridge
* GPIO05 Express Card, SB GPP0
* GPIO26 NEC USB3.0GPPUSB, SB GPP1
* GPIO00 MINIPCIE SLOT2, SB GPP2
* GPIO05 Pcie X1 Slot, SB GPP3
*/
/* Multi-function pins switch to GPIO0-35, these pins are shared with
* PCI pins, make sure Husson PCI device is disabled.
*/
RWMEM(ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGEA, AccWidthUint8, ~BIT0, 1);
/* select IOMux to function1/2, corresponds to GPIO */
RWMEM(ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG32, AccWidthUint8, ~(BIT0 | BIT1), 1);
RWMEM(ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG50, AccWidthUint8, ~(BIT0 | BIT1), 2);
/* output low */
RWMEM(ACPI_MMIO_BASE + GPIO_BASE + SB_GPIO_REG32, AccWidthUint8, ~(0xFF), 0x48);
RWMEM(ACPI_MMIO_BASE + GPIO_BASE + SB_GPIO_REG50, AccWidthUint8, ~(0xFF), 0x48);
}
uint64_t uma_memory_base, uma_memory_size;
@ -95,6 +119,8 @@ static void inagua_enable(device_t dev)
uma_memory_base = 0x30000000; /* 1GB system memory supported */
#endif
/* Inagua mainboard specific setting */
set_pcie_dereset();
}
int add_mainboard_resources(struct lb_memory *mem)