*/
#include <common.h>
+#include <i2c.h>
+#include <pci.h>
+#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
+#include <linux/crc8.h>
#include <linux/mbus.h>
#ifdef CONFIG_NET
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
+#define MV_USB_PHY_BASE (MVEBU_AXP_USB_BASE + 0x800)
+#define PHY_CHANNEL_RX_CTRL0_REG(port, chan) \
+ (MV_USB_PHY_BASE + ((port) << 12) + ((chan) << 6) + 0x8)
+
#define THEADORABLE_GPP_OUT_ENA_LOW 0x00336780
#define THEADORABLE_GPP_OUT_ENA_MID 0x00003cf0
#define THEADORABLE_GPP_OUT_ENA_HIGH (~(0x0))
#define THEADORABLE_GPP_OUT_VAL_MID 0x0007000c
#define THEADORABLE_GPP_OUT_VAL_HIGH 0x00000000
+#define GPIO_USB0_PWR_ON 18
+#define GPIO_USB1_PWR_ON 19
+
+#define PEX_SWITCH_NOT_FOUNT_LIMIT 3
+
+#define STM_I2C_BUS 1
+#define STM_I2C_ADDR 0x27
+#define REBOOT_DELAY 1000 /* reboot-delay in ms */
+
/* DDR3 static configuration */
static MV_DRAM_MC_INIT ddr3_theadorable[MV_MAX_DDR3_STATIC_SIZE] = {
{0x00001400, 0x7301ca28}, /* DDR SDRAM Configuration Register */
},
};
+/*
+ * Define a board-specific detection pulse-width array for the SerDes PCIe
+ * interfaces. If not defined in the board code, the default of currently 2
+ * is used. Values from 0...3 are possible (2 bits).
+ */
+u8 serdes_pex_pulse_width[4] = { 0, 2, 2, 2 };
+
MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
{
/* Only one mode supported for this board */
return &theadorable_serdes_cfg[0];
}
+u8 board_sat_r_get(u8 dev_num, u8 reg)
+{
+ /* Bit 0 enables PCI 2.0 link capabilities instead of PCI 1.x */
+ return 0x01;
+}
+
int board_early_init_f(void)
{
/* Configure MPP */
int board_init(void)
{
+ int ret;
+
/* adress of boot parameters */
gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
mbus_dt_setup_win(&mbus_state, SPI_BUS1_DEV2_BASE, SPI_BUS0_DEV1_SIZE,
CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI1_CS2);
+ /*
+ * Set RX Channel Control 0 Register:
+ * Tests have shown, that setting the LPF_COEF from 0 (1/8)
+ * to 3 (1/1) results in a more stable USB connection.
+ */
+ setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 1), 0xc);
+ setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 2), 0xc);
+ setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 3), 0xc);
+
+ /* Toggle USB power */
+ ret = gpio_request(GPIO_USB0_PWR_ON, "USB0_PWR_ON");
+ if (ret < 0)
+ return ret;
+ gpio_direction_output(GPIO_USB0_PWR_ON, 0);
+ ret = gpio_request(GPIO_USB1_PWR_ON, "USB1_PWR_ON");
+ if (ret < 0)
+ return ret;
+ gpio_direction_output(GPIO_USB1_PWR_ON, 0);
+ mdelay(1);
+ gpio_set_value(GPIO_USB0_PWR_ON, 1);
+ gpio_set_value(GPIO_USB1_PWR_ON, 1);
+
return 0;
}
int checkboard(void)
{
- puts("Board: theadorable\n");
-
board_fpga_add();
return 0;
return mvebu_lcd_register_init(&lcd_info);
}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+ pci_dev_t bdf;
+ ulong bootcount;
+
+ /*
+ * Check if the PEX switch is detected (somtimes its not available
+ * on the PCIe bus). In this case, try to recover by issuing a
+ * soft-reset or even a power-cycle, depending on the bootcounter
+ * value.
+ */
+ bdf = pci_find_device(PCI_VENDOR_ID_PLX, 0x8619, 0);
+ if (bdf == -1) {
+ u8 i2c_buf[8];
+ int ret;
+
+ /* PEX switch not found! */
+ bootcount = bootcount_load();
+ printf("Failed to find PLX PEX-switch (bootcount=%ld)\n",
+ bootcount);
+ if (bootcount > PEX_SWITCH_NOT_FOUNT_LIMIT) {
+ printf("Issuing power-switch via uC!\n");
+
+ printf("Issuing power-switch via uC!\n");
+ i2c_set_bus_num(STM_I2C_BUS);
+ i2c_buf[0] = STM_I2C_ADDR << 1;
+ i2c_buf[1] = 0xc5; /* cmd */
+ i2c_buf[2] = 0x01; /* enable */
+ /* Delay before reboot */
+ i2c_buf[3] = REBOOT_DELAY & 0x00ff;
+ i2c_buf[4] = (REBOOT_DELAY & 0xff00) >> 8;
+ /* Delay before shutdown */
+ i2c_buf[5] = 0x00;
+ i2c_buf[6] = 0x00;
+ i2c_buf[7] = crc8(0x72, &i2c_buf[0], 7);
+
+ ret = i2c_write(STM_I2C_ADDR, 0, 0, &i2c_buf[1], 7);
+ if (ret) {
+ printf("I2C write error (ret=%d)\n", ret);
+ printf("Issuing soft-reset...\n");
+ /* default handling: SOFT reset */
+ do_reset(NULL, 0, 0, NULL);
+ }
+
+ /* Wait for power-cycle to occur... */
+ printf("Waiting for power-cycle via uC...\n");
+ while (1)
+ ;
+ } else {
+ printf("Issuing soft-reset...\n");
+ /* default handling: SOFT reset */
+ do_reset(NULL, 0, 0, NULL);
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_PCI)
+int do_pcie_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ pci_dev_t bdf;
+ u16 ven_id, dev_id;
+
+ if (argc != 3)
+ return cmd_usage(cmdtp);
+
+ ven_id = simple_strtoul(argv[1], NULL, 16);
+ dev_id = simple_strtoul(argv[2], NULL, 16);
+
+ printf("Checking for PCIe device: VendorID 0x%04x, DeviceId 0x%04x\n",
+ ven_id, dev_id);
+
+ /*
+ * Check if the PCIe device is detected (somtimes its not available
+ * on the PCIe bus)
+ */
+ bdf = pci_find_device(ven_id, dev_id, 0);
+ if (bdf == -1) {
+ /* PCIe device not found! */
+ printf("Failed to find PCIe device\n");
+ } else {
+ /* PCIe device found! */
+ printf("PCIe device found, resetting board...\n");
+
+ /* default handling: SOFT reset */
+ do_reset(NULL, 0, 0, NULL);
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ pcie, 3, 0, do_pcie_test,
+ "Test for presence of a PCIe device",
+ "<VendorID> <DeviceID>"
+);
+#endif
projects / u-boot / blobdiff