GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
This commit is contained in:
@@ -0,0 +1,283 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* DHCOM DH-iMX6 PDK board support
|
||||
*
|
||||
* Copyright (C) 2017 Marek Vasut <marex@denx.de>
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <dm.h>
|
||||
#include <eeprom.h>
|
||||
#include <init.h>
|
||||
#include <dm/device-internal.h>
|
||||
#include <asm/arch/clock.h>
|
||||
#include <asm/arch/crm_regs.h>
|
||||
#include <asm/arch/imx-regs.h>
|
||||
#include <asm/arch/iomux.h>
|
||||
#include <asm/arch/mx6-pins.h>
|
||||
#include <asm/arch/sys_proto.h>
|
||||
#include <asm/gpio.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/mach-imx/boot_mode.h>
|
||||
#include <asm/mach-imx/iomux-v3.h>
|
||||
#include <asm/mach-imx/sata.h>
|
||||
#include <ahci.h>
|
||||
#include <dwc_ahsata.h>
|
||||
#include <env.h>
|
||||
#include <errno.h>
|
||||
#include <fsl_esdhc_imx.h>
|
||||
#include <fuse.h>
|
||||
#include <i2c_eeprom.h>
|
||||
#include <miiphy.h>
|
||||
#include <mmc.h>
|
||||
#include <net.h>
|
||||
#include <netdev.h>
|
||||
#include <usb.h>
|
||||
#include <usb/ehci-ci.h>
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
int dram_init(void)
|
||||
{
|
||||
gd->ram_size = imx_ddr_size();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Do not overwrite the console
|
||||
* Use always serial for U-Boot console
|
||||
*/
|
||||
int overwrite_console(void)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_FEC_MXC
|
||||
static void eth_phy_reset(void)
|
||||
{
|
||||
/* Reset PHY */
|
||||
gpio_direction_output(IMX_GPIO_NR(5, 0) , 0);
|
||||
udelay(500);
|
||||
gpio_set_value(IMX_GPIO_NR(5, 0), 1);
|
||||
|
||||
/* Enable VIO */
|
||||
gpio_direction_output(IMX_GPIO_NR(1, 7) , 0);
|
||||
|
||||
/*
|
||||
* KSZ9021 PHY needs at least 10 mSec after PHY reset
|
||||
* is released to stabilize
|
||||
*/
|
||||
mdelay(10);
|
||||
}
|
||||
|
||||
static int setup_fec_clock(void)
|
||||
{
|
||||
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
|
||||
|
||||
/* set gpr1[21] to select anatop clock */
|
||||
clrsetbits_le32(&iomuxc_regs->gpr[1], 0x1 << 21, 0x1 << 21);
|
||||
|
||||
return enable_fec_anatop_clock(0, ENET_50MHZ);
|
||||
}
|
||||
|
||||
int board_eth_init(bd_t *bis)
|
||||
{
|
||||
uint32_t base = IMX_FEC_BASE;
|
||||
struct mii_dev *bus = NULL;
|
||||
struct phy_device *phydev = NULL;
|
||||
|
||||
gpio_request(IMX_GPIO_NR(5, 0), "PHY-reset");
|
||||
gpio_request(IMX_GPIO_NR(1, 7), "VIO");
|
||||
|
||||
setup_fec_clock();
|
||||
|
||||
eth_phy_reset();
|
||||
|
||||
bus = fec_get_miibus(base, -1);
|
||||
if (!bus)
|
||||
return -EINVAL;
|
||||
|
||||
/* Scan PHY 0 */
|
||||
phydev = phy_find_by_mask(bus, 0xf, PHY_INTERFACE_MODE_RGMII);
|
||||
if (!phydev) {
|
||||
printf("Ethernet PHY not found!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return fec_probe(bis, -1, base, bus, phydev);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_EHCI_MX6
|
||||
static void setup_usb(void)
|
||||
{
|
||||
/*
|
||||
* Set daisy chain for otg_pin_id on MX6Q.
|
||||
* For MX6DL, this bit is reserved.
|
||||
*/
|
||||
imx_iomux_set_gpr_register(1, 13, 1, 0);
|
||||
}
|
||||
|
||||
int board_usb_phy_mode(int port)
|
||||
{
|
||||
if (port == 1)
|
||||
return USB_INIT_HOST;
|
||||
else
|
||||
return USB_INIT_DEVICE;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int setup_dhcom_mac_from_fuse(void)
|
||||
{
|
||||
struct udevice *dev;
|
||||
ofnode eeprom;
|
||||
unsigned char enetaddr[6];
|
||||
int ret;
|
||||
|
||||
ret = eth_env_get_enetaddr("ethaddr", enetaddr);
|
||||
if (ret) /* ethaddr is already set */
|
||||
return 0;
|
||||
|
||||
imx_get_mac_from_fuse(0, enetaddr);
|
||||
|
||||
if (is_valid_ethaddr(enetaddr)) {
|
||||
eth_env_set_enetaddr("ethaddr", enetaddr);
|
||||
return 0;
|
||||
}
|
||||
|
||||
eeprom = ofnode_path("/soc/aips-bus@2100000/i2c@21a8000/eeprom@50");
|
||||
if (!ofnode_valid(eeprom)) {
|
||||
printf("Invalid hardware path to EEPROM!\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
|
||||
if (ret) {
|
||||
printf("Cannot find EEPROM!\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = i2c_eeprom_read(dev, 0xfa, enetaddr, 0x6);
|
||||
if (ret) {
|
||||
printf("Error reading configuration EEPROM!\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (is_valid_ethaddr(enetaddr))
|
||||
eth_env_set_enetaddr("ethaddr", enetaddr);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int board_early_init_f(void)
|
||||
{
|
||||
#ifdef CONFIG_USB_EHCI_MX6
|
||||
setup_usb();
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int board_init(void)
|
||||
{
|
||||
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
||||
|
||||
/* address of boot parameters */
|
||||
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
|
||||
|
||||
/* Enable eim_slow clocks */
|
||||
setbits_le32(&mxc_ccm->CCGR6, 0x1 << MXC_CCM_CCGR6_EMI_SLOW_OFFSET);
|
||||
|
||||
setup_dhcom_mac_from_fuse();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CMD_BMODE
|
||||
static const struct boot_mode board_boot_modes[] = {
|
||||
/* 4 bit bus width */
|
||||
{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
|
||||
{"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
|
||||
/* 8 bit bus width */
|
||||
{"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
|
||||
{NULL, 0},
|
||||
};
|
||||
#endif
|
||||
|
||||
#define HW_CODE_BIT_0 IMX_GPIO_NR(2, 19)
|
||||
#define HW_CODE_BIT_1 IMX_GPIO_NR(6, 6)
|
||||
#define HW_CODE_BIT_2 IMX_GPIO_NR(2, 16)
|
||||
|
||||
static int board_get_hwcode(void)
|
||||
{
|
||||
int hw_code;
|
||||
|
||||
gpio_request(HW_CODE_BIT_0, "HW-code-bit-0");
|
||||
gpio_request(HW_CODE_BIT_1, "HW-code-bit-1");
|
||||
gpio_request(HW_CODE_BIT_2, "HW-code-bit-2");
|
||||
|
||||
gpio_direction_input(HW_CODE_BIT_0);
|
||||
gpio_direction_input(HW_CODE_BIT_1);
|
||||
gpio_direction_input(HW_CODE_BIT_2);
|
||||
|
||||
/* HW 100 + HW 200 = 00b; HW 300 = 01b */
|
||||
hw_code = ((gpio_get_value(HW_CODE_BIT_2) << 2) |
|
||||
(gpio_get_value(HW_CODE_BIT_1) << 1) |
|
||||
gpio_get_value(HW_CODE_BIT_0)) + 2;
|
||||
|
||||
return hw_code;
|
||||
}
|
||||
|
||||
int board_late_init(void)
|
||||
{
|
||||
u32 hw_code;
|
||||
char buf[16];
|
||||
|
||||
hw_code = board_get_hwcode();
|
||||
|
||||
switch (get_cpu_type()) {
|
||||
case MXC_CPU_MX6SOLO:
|
||||
snprintf(buf, sizeof(buf), "imx6s-dhcom%1d", hw_code);
|
||||
break;
|
||||
case MXC_CPU_MX6DL:
|
||||
snprintf(buf, sizeof(buf), "imx6dl-dhcom%1d", hw_code);
|
||||
break;
|
||||
case MXC_CPU_MX6D:
|
||||
snprintf(buf, sizeof(buf), "imx6d-dhcom%1d", hw_code);
|
||||
break;
|
||||
case MXC_CPU_MX6Q:
|
||||
snprintf(buf, sizeof(buf), "imx6q-dhcom%1d", hw_code);
|
||||
break;
|
||||
default:
|
||||
snprintf(buf, sizeof(buf), "UNKNOWN%1d", hw_code);
|
||||
break;
|
||||
}
|
||||
|
||||
env_set("dhcom", buf);
|
||||
|
||||
#ifdef CONFIG_CMD_BMODE
|
||||
add_board_boot_modes(board_boot_modes);
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
int checkboard(void)
|
||||
{
|
||||
puts("Board: DHCOM i.MX6\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_MULTI_DTB_FIT
|
||||
int board_fit_config_name_match(const char *name)
|
||||
{
|
||||
if (is_mx6dq()) {
|
||||
if (!strcmp(name, "imx6q-dhcom-pdk2"))
|
||||
return 0;
|
||||
} else if (is_mx6sdl()) {
|
||||
if (!strcmp(name, "imx6dl-dhcom-pdk2"))
|
||||
return 0;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
Reference in New Issue
Block a user