From b162257d4f175b59ebedd9c2db930d29317ffe16 Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Wed, 4 Feb 2015 16:26:09 +0800
Subject: 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>
---
 arch/x86/cpu/quark/quark.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

(limited to 'arch/x86/cpu')

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;
 }
 
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