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/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <netdev.h>
#include <phy.h>
#include <asm/io.h>
#include <asm/irq.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 = x86_pci_read_config32(QUARK_LEGACY_BRIDGE, 0xd8);
bc |= 0x1; /* unprotect the flash */
x86_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);
}
static void quark_enable_legacy_seg(void)
{
u32 hmisc2;
hmisc2 = msg_port_read(MSG_PORT_HOST_BRIDGE, HMISC2);
hmisc2 |= (HMISC2_SEGE | HMISC2_SEGF | HMISC2_SEGAB);
msg_port_write(MSG_PORT_HOST_BRIDGE, HMISC2, hmisc2);
}
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();
/* Turn on legacy segments (A/B/E/F) decode to system RAM */
quark_enable_legacy_seg();
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 */
x86_full_reset();
}
int cpu_mmc_init(bd_t *bis)
{
return pci_mmc_init("Quark SDHCI", mmc_supported,
ARRAY_SIZE(mmc_supported));
}
int cpu_eth_init(bd_t *bis)
{
u32 base;
int ret0, ret1;
pci_read_config_dword(QUARK_EMAC0, PCI_BASE_ADDRESS_0, &base);
ret0 = designware_initialize(base, PHY_INTERFACE_MODE_RMII);
pci_read_config_dword(QUARK_EMAC1, PCI_BASE_ADDRESS_0, &base);
ret1 = designware_initialize(base, PHY_INTERFACE_MODE_RMII);
if (ret0 < 0 && ret1 < 0)
return -1;
else
return 0;
}
void cpu_irq_init(void)
{
struct quark_rcba *rcba;
u32 base;
base = x86_pci_read_config32(QUARK_LEGACY_BRIDGE, LB_RCBA);
base &= ~MEM_BAR_EN;
rcba = (struct quark_rcba *)base;
/*
* Route Quark PCI device interrupt pin to PIRQ
*
* Route device#23's INTA/B/C/D to PIRQA/B/C/D
* Route device#20,21's INTA/B/C/D to PIRQE/F/G/H
*/
writew(PIRQC, &rcba->rmu_ir);
writew(PIRQA | (PIRQB << 4) | (PIRQC << 8) | (PIRQD << 12),
&rcba->d23_ir);
writew(PIRQD, &rcba->core_ir);
writew(PIRQE | (PIRQF << 4) | (PIRQG << 8) | (PIRQH << 12),
&rcba->d20d21_ir);
}
int arch_misc_init(void)
{
pirq_init();
return 0;
}
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