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authorBin Meng <bmeng.cn@gmail.com>2015-02-04 16:26:09 +0800
committerSimon Glass <sjg@chromium.org>2015-02-06 12:07:44 -0700
commitb162257d4f175b59ebedd9c2db930d29317ffe16 (patch)
tree27c5fd548d015f58730eea4de8ea950445ca6c8b /arch/x86
parent20c34115d603745cf276c683168292d02056791a (diff)
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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>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/cpu/quark/quark.c46
-rw-r--r--arch/x86/include/asm/arch-quark/quark.h32
2 files changed, 78 insertions, 0 deletions
diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c
index 47ba152..cf596e4 100644
--- a/arch/x86/cpu/quark/quark.c
+++ b/arch/x86/cpu/quark/quark.c
@@ -9,6 +9,46 @@
#include <asm/pci.h>
#include <asm/post.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)
{
@@ -28,6 +68,12 @@ int arch_cpu_init(void)
if (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;
}
diff --git a/arch/x86/include/asm/arch-quark/quark.h b/arch/x86/include/asm/arch-quark/quark.h
index ebbcf77..ceb583e 100644
--- a/arch/x86/include/asm/arch-quark/quark.h
+++ b/arch/x86/include/asm/arch-quark/quark.h
@@ -14,9 +14,29 @@
#define MSG_PORT_MEM_MGR 0x05
#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 */
#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 */
#define ESRAM_BLK_CTRL 0x82
#define ESRAM_BLOCK_MODE 0x10000000
@@ -37,4 +57,16 @@
/* 64KiB of RMU binary in flash */
#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_ */