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x86: quark: Initialize non-standard BARs 

Quark SoC has some non-standard BARs (excluding PCI standard BARs)
which need be initialized with suggested values. This includes GPIO,
WDT, RCBA, PCIe ECAM and some ACPI register block base addresses.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-02-04 16:26:09 +08:00 committed by Simon Glass
parent 20c34115d6
commit b162257d4f
2 changed files with 78 additions and 0 deletions
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46
arch/x86/cpu/quark/quark.c
View File

@ -9,6 +9,46 @@
#include <asm/pci.h> #include <asm/pci.h>
#include <asm/post.h> #include <asm/post.h>
#include <asm/processor.h> #include <asm/processor.h>
#include <asm/arch/device.h>
#include <asm/arch/msg_port.h>
#include <asm/arch/quark.h>
static void quark_setup_bars(void)
{
/* GPIO - D31:F0:R44h */
pci_write_config_dword(QUARK_LEGACY_BRIDGE, LB_GBA,
CONFIG_GPIO_BASE | IO_BAR_EN);
/* ACPI PM1 Block - D31:F0:R48h */
pci_write_config_dword(QUARK_LEGACY_BRIDGE, LB_PM1BLK,
CONFIG_ACPI_PM1_BASE | IO_BAR_EN);
/* GPE0 - D31:F0:R4Ch */
pci_write_config_dword(QUARK_LEGACY_BRIDGE, LB_GPE0BLK,
CONFIG_ACPI_GPE0_BASE | IO_BAR_EN);
/* WDT - D31:F0:R84h */
pci_write_config_dword(QUARK_LEGACY_BRIDGE, LB_WDTBA,
CONFIG_WDT_BASE | IO_BAR_EN);
/* RCBA - D31:F0:RF0h */
pci_write_config_dword(QUARK_LEGACY_BRIDGE, LB_RCBA,
CONFIG_RCBA_BASE | MEM_BAR_EN);
/* ACPI P Block - Msg Port 04:R70h */
msg_port_write(MSG_PORT_RMU, PBLK_BA,
CONFIG_ACPI_PBLK_BASE | IO_BAR_EN);
/* SPI DMA - Msg Port 04:R7Ah */
msg_port_write(MSG_PORT_RMU, SPI_DMA_BA,
CONFIG_SPI_DMA_BASE | IO_BAR_EN);
/* PCIe ECAM */
msg_port_write(MSG_PORT_MEM_ARBITER, AEC_CTRL,
CONFIG_PCIE_ECAM_BASE | MEM_BAR_EN);
msg_port_write(MSG_PORT_HOST_BRIDGE, HEC_REG,
CONFIG_PCIE_ECAM_BASE | MEM_BAR_EN);
}
int arch_cpu_init(void) int arch_cpu_init(void)
{ {
@ -28,6 +68,12 @@ int arch_cpu_init(void)
if (ret) if (ret)
return ret; return ret;
/*
* Quark SoC has some non-standard BARs (excluding PCI standard BARs)
* which need be initialized with suggested values
*/
quark_setup_bars();
return 0; return 0;
} }

32
arch/x86/include/asm/arch-quark/quark.h
View File

@ -14,9 +14,29 @@
#define MSG_PORT_MEM_MGR 0x05 #define MSG_PORT_MEM_MGR 0x05
#define MSG_PORT_SOC_UNIT 0x31 #define MSG_PORT_SOC_UNIT 0x31
/* Port 0x00: Memory Arbiter Message Port Registers */
/* Enhanced Configuration Space */
#define AEC_CTRL 0x00
/* Port 0x03: Host Bridge Message Port Registers */
/* Host Memory I/O Boundary */ /* Host Memory I/O Boundary */
#define HM_BOUND 0x08 #define HM_BOUND 0x08
/* Extended Configuration Space */
#define HEC_REG 0x09
/* Port 0x04: Remote Management Unit Message Port Registers */
/* ACPI PBLK Base Address Register */
#define PBLK_BA 0x70
/* SPI DMA Base Address Register */
#define SPI_DMA_BA 0x7a
/* Port 0x05: Memory Manager Message Port Registers */
/* eSRAM Block Page Control */ /* eSRAM Block Page Control */
#define ESRAM_BLK_CTRL 0x82 #define ESRAM_BLK_CTRL 0x82
#define ESRAM_BLOCK_MODE 0x10000000 #define ESRAM_BLOCK_MODE 0x10000000
@ -37,4 +57,16 @@
/* 64KiB of RMU binary in flash */ /* 64KiB of RMU binary in flash */
#define RMU_BINARY_SIZE 0x10000 #define RMU_BINARY_SIZE 0x10000
/* Legacy Bridge PCI Configuration Registers */
#define LB_GBA 0x44
#define LB_PM1BLK 0x48
#define LB_GPE0BLK 0x4c
#define LB_ACTL 0x58
#define LB_PABCDRC 0x60
#define LB_PEFGHRC 0x64
#define LB_WDTBA 0x84
#define LB_BCE 0xd4
#define LB_BC 0xd8
#define LB_RCBA 0xf0
#endif /* _QUARK_H_ */ #endif /* _QUARK_H_ */