1 files changed, 118 insertions, 0 deletions
diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c
new file mode 100644
index 0000000000..dccf7ac5f5
--- /dev/null
+++ b/arch/x86/cpu/quark/quark.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <mmc.h>
+#include <asm/io.h>
+#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 struct pci_device_id mmc_supported[] = {
+	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_SDIO },
+};
+
+/*
+ * TODO:
+ *
+ * This whole routine should be removed until we fully convert the ICH SPI
+ * driver to DM and make use of DT to pass the bios control register offset
+ */
+static void unprotect_spi_flash(void)
+{
+	u32 bc;
+
+	bc = pci_read_config32(QUARK_LEGACY_BRIDGE, 0xd8);
+	bc |= 0x1;	/* unprotect the flash */
+	pci_write_config32(QUARK_LEGACY_BRIDGE, 0xd8, bc);
+}
+
+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)
+{
+	struct pci_controller *hose;
+	int ret;
+
+	post_code(POST_CPU_INIT);
+#ifdef CONFIG_SYS_X86_TSC_TIMER
+	timer_set_base(rdtsc());
+#endif
+
+	ret = x86_cpu_init_f();
+	if (ret)
+		return ret;
+
+	ret = pci_early_init_hose(&hose);
+	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();
+
+	unprotect_spi_flash();
+
+	return 0;
+}
+
+int print_cpuinfo(void)
+{
+	post_code(POST_CPU_INFO);
+	return default_print_cpuinfo();
+}
+
+void reset_cpu(ulong addr)
+{
+	/* cold reset */
+	outb(0x08, PORT_RESET);
+}
+
+int cpu_mmc_init(bd_t *bis)
+{
+	return pci_mmc_init("Quark SDHCI", mmc_supported,
+			    ARRAY_SIZE(mmc_supported));
+}