u-boot/board/freescale/p2020come/p2020come.c

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/*
* Copyright 2009,2012 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <hwconfig.h>
#include <command.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/cache.h>
#include <asm/immap_85xx.h>
#include <asm/mpc85xx_gpio.h>
#include <asm/fsl_serdes.h>
#include <asm/io.h>
#include <miiphy.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <fsl_mdio.h>
#include <tsec.h>
#include <vsc7385.h>
#include <netdev.h>
#include <mmc.h>
#include <malloc.h>
#include <i2c.h>
#if defined(CONFIG_PCI)
#include <asm/fsl_pci.h>
#include <pci.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_PCI)
void pci_init_board(void)
{
fsl_pcie_init_board(0);
}
void ft_pci_board_setup(void *blob)
{
FT_FSL_PCI_SETUP;
}
#endif
#define BOARD_PERI_RST_SET (VSC7385_RST_SET | SLIC_RST_SET | \
SGMII_PHY_RST_SET | PCIE_RST_SET | \
RGMII_PHY_RST_SET)
#define SYSCLK_MASK 0x00200000
#define BOARDREV_MASK 0x10100000
#define BOARDREV_B 0x10100000
#define BOARDREV_C 0x00100000
#define BOARDREV_D 0x00000000
#define SYSCLK_66 66666666
#define SYSCLK_50 50000000
#define SYSCLK_100 100000000
unsigned long get_board_sys_clk(ulong dummy)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u32 ddr_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO;
ddr_ratio >>= MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
switch (ddr_ratio) {
case 0x0C:
return SYSCLK_66;
case 0x0A:
case 0x08:
return SYSCLK_100;
default:
puts("ERROR: unknown DDR ratio\n");
return SYSCLK_100;
}
}
unsigned long get_board_ddr_clk(ulong dummy)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u32 ddr_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO;
ddr_ratio >>= MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
switch (ddr_ratio) {
case 0x0C:
case 0x0A:
return SYSCLK_66;
case 0x08:
return SYSCLK_100;
default:
puts("ERROR: unknown DDR ratio\n");
return SYSCLK_100;
}
}
#ifdef CONFIG_MMC
int board_early_init_f(void)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
setbits_be32(&gur->pmuxcr,
(MPC85xx_PMUXCR_SDHC_CD |
MPC85xx_PMUXCR_SDHC_WP));
/* All the device are enable except for SRIO12 */
setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_SRIO);
return 0;
}
#endif
#define GPIO_DIR 0x0f3a0000
#define GPIO_ODR 0x00000000
#define GPIO_DAT 0x001a0000
int checkboard(void)
{
ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR + 0xC00);
/*
* GPIO
* 0 - 3: CarryBoard Input;
* 4 - 7: CarryBoard Output;
* 8 : Mux as SDHC_CD (card detection)
* 9 : Mux as SDHC_WP
* 10 : Clear Watchdog timer
* 11 : LED Input
* 12 : Output to 1
* 13 : Open Drain
* 14 : LED Output
* 15 : Switch Input
*
* Set GPIOs 11, 12, 14 to 1.
*/
out_be32(&pgpio->gpodr, GPIO_ODR);
mpc85xx_gpio_set(0xffffffff, GPIO_DIR, GPIO_DAT);
puts("Board: Freescale COM Express P2020\n");
return 0;
}
#define M41ST85W_I2C_BUS 1
#define M41ST85W_I2C_ADDR 0x68
#define M41ST85W_ERROR(fmt, args...) printf("ERROR: M41ST85W: " fmt, ##args)
static void m41st85w_clear_bit(u8 reg, u8 mask, const char *name)
{
u8 data;
if (i2c_read(M41ST85W_I2C_ADDR, reg, 1, &data, 1)) {
M41ST85W_ERROR("unable to read %s bit\n", name);
return;
}
if (data & mask) {
data &= ~mask;
if (i2c_write(M41ST85W_I2C_ADDR, reg, 1, &data, 1)) {
M41ST85W_ERROR("unable to clear %s bit\n", name);
return;
}
}
}
#define M41ST85W_REG_SEC2 0x01
#define M41ST85W_REG_SEC2_ST 0x80
#define M41ST85W_REG_ALHOUR 0x0c
#define M41ST85W_REG_ALHOUR_HT 0x40
/*
* The P2020COME board has a STMicro M41ST85W RTC/watchdog
* at i2c bus 1 address 0x68.
*/
static void start_rtc(void)
{
unsigned int bus = i2c_get_bus_num();
if (i2c_set_bus_num(M41ST85W_I2C_BUS)) {
M41ST85W_ERROR("unable to set i2c bus\n");
goto out;
}
/* ensure ST (stop) and HT (halt update) bits are cleared */
m41st85w_clear_bit(M41ST85W_REG_SEC2, M41ST85W_REG_SEC2_ST, "ST");
m41st85w_clear_bit(M41ST85W_REG_ALHOUR, M41ST85W_REG_ALHOUR_HT, "HT");
out:
/* reset the i2c bus */
i2c_set_bus_num(bus);
}
int board_early_init_r(void)
{
start_rtc();
return 0;
}
#define M41ST85W_REG_WATCHDOG 0x09
#define M41ST85W_REG_WATCHDOG_WDS 0x80
#define M41ST85W_REG_WATCHDOG_BMB0 0x04
void board_reset(void)
{
u8 data = M41ST85W_REG_WATCHDOG_WDS | M41ST85W_REG_WATCHDOG_BMB0;
/* set the hardware watchdog timeout to 1/16 second, then hang */
i2c_set_bus_num(M41ST85W_I2C_BUS);
i2c_write(M41ST85W_I2C_ADDR, M41ST85W_REG_WATCHDOG, 1, &data, 1);
while (1)
/* hang */;
}
#ifdef CONFIG_TSEC_ENET
int board_eth_init(bd_t *bis)
{
struct fsl_pq_mdio_info mdio_info;
struct tsec_info_struct tsec_info[4];
int num = 0;
#ifdef CONFIG_TSEC1
SET_STD_TSEC_INFO(tsec_info[num], 1);
num++;
#endif
#ifdef CONFIG_TSEC2
SET_STD_TSEC_INFO(tsec_info[num], 2);
num++;
#endif
#ifdef CONFIG_TSEC3
SET_STD_TSEC_INFO(tsec_info[num], 3);
if (is_serdes_configured(SGMII_TSEC3)) {
puts("eTSEC3 is in sgmii mode.");
tsec_info[num].flags |= TSEC_SGMII;
}
num++;
#endif
if (!num) {
printf("No TSECs initialized\n");
return 0;
}
mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
mdio_info.name = DEFAULT_MII_NAME;
fsl_pq_mdio_init(bis, &mdio_info);
tsec_eth_init(bis, tsec_info, num);
return pci_eth_init(bis);
}
#endif
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
phys_addr_t base;
phys_size_t size;
ft_cpu_setup(blob, bd);
base = getenv_bootm_low();
size = getenv_bootm_size();
#if defined(CONFIG_PCI)
ft_pci_board_setup(blob);
#endif
fdt_fixup_memory(blob, (u64)base, (u64)size);
#ifdef CONFIG_HAS_FSL_DR_USB
fdt_fixup_dr_usb(blob, bd);
#endif
}
#endif