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/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2013 Imagination Technologies
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <netdev.h>
#include <pci.h>
#include <pci_gt64120.h>
#include <pci_msc01.h>
#include <rtc.h>
#include <serial.h>
#include <asm/addrspace.h>
#include <asm/io.h>
#include <asm/malta.h>
#include "superio.h"
enum core_card {
CORE_UNKNOWN,
CORE_LV,
CORE_FPGA6,
};
enum sys_con {
SYSCON_UNKNOWN,
SYSCON_GT64120,
SYSCON_MSC01,
};
static void malta_lcd_puts(const char *str)
{
int i;
void *reg = (void *)CKSEG1ADDR(MALTA_ASCIIPOS0);
/* print up to 8 characters of the string */
for (i = 0; i < min(strlen(str), 8); i++) {
__raw_writel(str[i], reg);
reg += MALTA_ASCIIPOS1 - MALTA_ASCIIPOS0;
}
/* fill the rest of the display with spaces */
for (; i < 8; i++) {
__raw_writel(' ', reg);
reg += MALTA_ASCIIPOS1 - MALTA_ASCIIPOS0;
}
}
static enum core_card malta_core_card(void)
{
u32 corid, rev;
rev = __raw_readl(CKSEG1ADDR(MALTA_REVISION));
corid = (rev & MALTA_REVISION_CORID_MSK) >> MALTA_REVISION_CORID_SHF;
switch (corid) {
case MALTA_REVISION_CORID_CORE_LV:
return CORE_LV;
case MALTA_REVISION_CORID_CORE_FPGA6:
return CORE_FPGA6;
default:
return CORE_UNKNOWN;
}
}
static enum sys_con malta_sys_con(void)
{
switch (malta_core_card()) {
case CORE_LV:
return SYSCON_GT64120;
case CORE_FPGA6:
return SYSCON_MSC01;
default:
return SYSCON_UNKNOWN;
}
}
phys_size_t initdram(int board_type)
{
return CONFIG_SYS_MEM_SIZE;
}
int checkboard(void)
{
enum core_card core;
malta_lcd_puts("U-boot");
puts("Board: MIPS Malta");
core = malta_core_card();
switch (core) {
case CORE_LV:
puts(" CoreLV");
break;
case CORE_FPGA6:
puts(" CoreFPGA6");
break;
default:
puts(" CoreUnknown");
}
putc('\n');
return 0;
}
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
void _machine_restart(void)
{
void __iomem *reset_base;
reset_base = (void __iomem *)CKSEG1ADDR(MALTA_RESET_BASE);
__raw_writel(GORESET, reset_base);
}
int board_early_init_f(void)
{
void *io_base;
/* choose correct PCI I/O base */
switch (malta_sys_con()) {
case SYSCON_GT64120:
io_base = (void *)CKSEG1ADDR(MALTA_GT_PCIIO_BASE);
break;
case SYSCON_MSC01:
io_base = (void *)CKSEG1ADDR(MALTA_MSC01_PCIIO_BASE);
break;
default:
return -1;
}
/* setup FDC37M817 super I/O controller */
malta_superio_init(io_base);
return 0;
}
int misc_init_r(void)
{
rtc_reset();
return 0;
}
struct serial_device *default_serial_console(void)
{
switch (malta_sys_con()) {
case SYSCON_GT64120:
return &eserial1_device;
default:
case SYSCON_MSC01:
return &eserial2_device;
}
}
void pci_init_board(void)
{
pci_dev_t bdf;
u32 val32;
u8 val8;
switch (malta_sys_con()) {
case SYSCON_GT64120:
set_io_port_base(CKSEG1ADDR(MALTA_GT_PCIIO_BASE));
gt64120_pci_init((void *)CKSEG1ADDR(MALTA_GT_BASE),
0x00000000, 0x00000000, CONFIG_SYS_MEM_SIZE,
0x10000000, 0x10000000, 128 * 1024 * 1024,
0x00000000, 0x00000000, 0x20000);
break;
default:
case SYSCON_MSC01:
set_io_port_base(CKSEG1ADDR(MALTA_MSC01_PCIIO_BASE));
msc01_pci_init((void *)CKSEG1ADDR(MALTA_MSC01_PCI_BASE),
0x00000000, 0x00000000, CONFIG_SYS_MEM_SIZE,
MALTA_MSC01_PCIMEM_MAP,
CKSEG1ADDR(MALTA_MSC01_PCIMEM_BASE),
MALTA_MSC01_PCIMEM_SIZE, MALTA_MSC01_PCIIO_MAP,
0x00000000, MALTA_MSC01_PCIIO_SIZE);
break;
}
bdf = pci_find_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82371AB_0, 0);
if (bdf == -1)
panic("Failed to find PIIX4 PCI bridge\n");
/* setup PCI interrupt routing */
pci_write_config_byte(bdf, PCI_CFG_PIIX4_PIRQRCA, 10);
pci_write_config_byte(bdf, PCI_CFG_PIIX4_PIRQRCB, 10);
pci_write_config_byte(bdf, PCI_CFG_PIIX4_PIRQRCC, 11);
pci_write_config_byte(bdf, PCI_CFG_PIIX4_PIRQRCD, 11);
/* mux SERIRQ onto SERIRQ pin */
pci_read_config_dword(bdf, PCI_CFG_PIIX4_GENCFG, &val32);
val32 |= PCI_CFG_PIIX4_GENCFG_SERIRQ;
pci_write_config_dword(bdf, PCI_CFG_PIIX4_GENCFG, val32);
/* enable SERIRQ - Linux currently depends upon this */
pci_read_config_byte(bdf, PCI_CFG_PIIX4_SERIRQC, &val8);
val8 |= PCI_CFG_PIIX4_SERIRQC_EN | PCI_CFG_PIIX4_SERIRQC_CONT;
pci_write_config_byte(bdf, PCI_CFG_PIIX4_SERIRQC, val8);
}
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