mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-16 09:43:39 +09:00
a65e65939e
Due to different partition layouts in different U-Boot versions, DTS for Espressobin in Linux does not contain any definition of MTD partitions. See commit https://git.kernel.org/stable/c/00954566464a4 for more details. This patch via ft_board_setup() hook fills current partition layout used by U-Boot, so booted kernel would see correct MTD partitions layout. U-Boot env partition is calculated from CONFIG_ENV_OFFSET option. First partition contains secure firmware, ARM trusted firmware and U-Boot with checksums. So it is not possible to replace just one image (e.g. U-Boot) without updating other parts where is stored checksum of U-Boot. Therefore there is no extra partition defined for U-Boot and first partition is called just 'firmware'. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Konstantin Porotchkin <kostap@marvell.com> Tested-by: Andre Heider <a.heider@gmail.com>
346 lines
9.3 KiB
C
346 lines
9.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Stefan Roese <sr@denx.de>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <init.h>
|
|
#include <phy.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/cpu.h>
|
|
#include <asm/arch/soc.h>
|
|
#include <linux/delay.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* IO expander I2C device */
|
|
#define I2C_IO_EXP_ADDR 0x22
|
|
#define I2C_IO_CFG_REG_0 0x6
|
|
#define I2C_IO_DATA_OUT_REG_0 0x2
|
|
#define I2C_IO_REG_0_SATA_OFF 2
|
|
#define I2C_IO_REG_0_USB_H_OFF 1
|
|
|
|
/* The pin control values are the same for DB and Espressobin */
|
|
#define PINCTRL_NB_REG_VALUE 0x000173fa
|
|
#define PINCTRL_SB_REG_VALUE 0x00007a23
|
|
|
|
/* Ethernet switch registers */
|
|
/* SMI addresses for multi-chip mode */
|
|
#define MVEBU_PORT_CTRL_SMI_ADDR(p) (16 + (p))
|
|
#define MVEBU_SW_G2_SMI_ADDR (28)
|
|
|
|
/* Multi-chip mode */
|
|
#define MVEBU_SW_SMI_DATA_REG (1)
|
|
#define MVEBU_SW_SMI_CMD_REG (0)
|
|
#define SW_SMI_CMD_REG_ADDR_OFF 0
|
|
#define SW_SMI_CMD_DEV_ADDR_OFF 5
|
|
#define SW_SMI_CMD_SMI_OP_OFF 10
|
|
#define SW_SMI_CMD_SMI_MODE_OFF 12
|
|
#define SW_SMI_CMD_SMI_BUSY_OFF 15
|
|
|
|
/* Single-chip mode */
|
|
/* Switch Port Registers */
|
|
#define MVEBU_SW_LINK_CTRL_REG (1)
|
|
#define MVEBU_SW_PORT_CTRL_REG (4)
|
|
#define MVEBU_SW_PORT_BASE_VLAN (6)
|
|
|
|
/* Global 2 Registers */
|
|
#define MVEBU_G2_SMI_PHY_CMD_REG (24)
|
|
#define MVEBU_G2_SMI_PHY_DATA_REG (25)
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Board specific AHCI / SATA enable code */
|
|
int board_ahci_enable(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
u8 buf[8];
|
|
|
|
/* Only DB requres this configuration */
|
|
if (!of_machine_is_compatible("marvell,armada-3720-db"))
|
|
return 0;
|
|
|
|
/* Configure IO exander PCA9555: 7bit address 0x22 */
|
|
ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
|
|
if (ret) {
|
|
printf("Cannot find PCA9555: %d\n", ret);
|
|
return 0;
|
|
}
|
|
|
|
ret = dm_i2c_read(dev, I2C_IO_CFG_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to read IO expander value via I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/*
|
|
* Enable SATA power via IO expander connected via I2C by setting
|
|
* the corresponding bit to output mode to enable power for SATA
|
|
*/
|
|
buf[0] &= ~(1 << I2C_IO_REG_0_SATA_OFF);
|
|
ret = dm_i2c_write(dev, I2C_IO_CFG_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to set IO expander via I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Board specific xHCI enable code */
|
|
int board_xhci_enable(fdt_addr_t base)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
u8 buf[8];
|
|
|
|
/* Only DB requres this configuration */
|
|
if (!of_machine_is_compatible("marvell,armada-3720-db"))
|
|
return 0;
|
|
|
|
/* Configure IO exander PCA9555: 7bit address 0x22 */
|
|
ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
|
|
if (ret) {
|
|
printf("Cannot find PCA9555: %d\n", ret);
|
|
return 0;
|
|
}
|
|
|
|
printf("Enable USB VBUS\n");
|
|
|
|
/*
|
|
* Read configuration (direction) and set VBUS pin as output
|
|
* (reset pin = output)
|
|
*/
|
|
ret = dm_i2c_read(dev, I2C_IO_CFG_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to read IO expander value via I2C\n");
|
|
return -EIO;
|
|
}
|
|
buf[0] &= ~(1 << I2C_IO_REG_0_USB_H_OFF);
|
|
ret = dm_i2c_write(dev, I2C_IO_CFG_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to set IO expander via I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* Read VBUS output value and disable it */
|
|
ret = dm_i2c_read(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to read IO expander value via I2C\n");
|
|
return -EIO;
|
|
}
|
|
buf[0] &= ~(1 << I2C_IO_REG_0_USB_H_OFF);
|
|
ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to set IO expander via I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/*
|
|
* Required delay for configuration to settle - must wait for
|
|
* power on port is disabled in case VBUS signal was high,
|
|
* required 3 seconds delay to let VBUS signal fully settle down
|
|
*/
|
|
mdelay(3000);
|
|
|
|
/* Enable VBUS power: Set output value of VBUS pin as enabled */
|
|
buf[0] |= (1 << I2C_IO_REG_0_USB_H_OFF);
|
|
ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
|
|
if (ret) {
|
|
printf("Failed to set IO expander via I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
mdelay(500); /* required delay to let output value settle */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Helper function for accessing switch devices in multi-chip connection mode */
|
|
static int mii_multi_chip_mode_write(struct mii_dev *bus, int dev_smi_addr,
|
|
int smi_addr, int reg, u16 value)
|
|
{
|
|
u16 smi_cmd = 0;
|
|
|
|
if (bus->write(bus, dev_smi_addr, 0,
|
|
MVEBU_SW_SMI_DATA_REG, value) != 0) {
|
|
printf("Error writing to the PHY addr=%02x reg=%02x\n",
|
|
smi_addr, reg);
|
|
return -EFAULT;
|
|
}
|
|
|
|
smi_cmd = (1 << SW_SMI_CMD_SMI_BUSY_OFF) |
|
|
(1 << SW_SMI_CMD_SMI_MODE_OFF) |
|
|
(1 << SW_SMI_CMD_SMI_OP_OFF) |
|
|
(smi_addr << SW_SMI_CMD_DEV_ADDR_OFF) |
|
|
(reg << SW_SMI_CMD_REG_ADDR_OFF);
|
|
if (bus->write(bus, dev_smi_addr, 0,
|
|
MVEBU_SW_SMI_CMD_REG, smi_cmd) != 0) {
|
|
printf("Error writing to the PHY addr=%02x reg=%02x\n",
|
|
smi_addr, reg);
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Bring-up board-specific network stuff */
|
|
int board_network_enable(struct mii_dev *bus)
|
|
{
|
|
if (!of_machine_is_compatible("marvell,armada-3720-espressobin"))
|
|
return 0;
|
|
|
|
/*
|
|
* FIXME: remove this code once Topaz driver gets available
|
|
* A3720 Community Board Only
|
|
* Configure Topaz switch (88E6341)
|
|
* Restrict output to ports 1,2,3 only from port 0 (CPU)
|
|
* Set port 0,1,2,3 to forwarding Mode (through Switch Port registers)
|
|
*/
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(1),
|
|
MVEBU_SW_PORT_BASE_VLAN, BIT(0));
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(2),
|
|
MVEBU_SW_PORT_BASE_VLAN, BIT(0));
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(3),
|
|
MVEBU_SW_PORT_BASE_VLAN, BIT(0));
|
|
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(0),
|
|
MVEBU_SW_PORT_CTRL_REG, 0x7f);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(1),
|
|
MVEBU_SW_PORT_CTRL_REG, 0x7f);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(2),
|
|
MVEBU_SW_PORT_CTRL_REG, 0x7f);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(3),
|
|
MVEBU_SW_PORT_CTRL_REG, 0x7f);
|
|
|
|
/* RGMII Delay on Port 0 (CPU port), force link to 1000Mbps */
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_PORT_CTRL_SMI_ADDR(0),
|
|
MVEBU_SW_LINK_CTRL_REG, 0xe002);
|
|
|
|
/* Power up PHY 1, 2, 3 (through Global 2 registers) */
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_SW_G2_SMI_ADDR,
|
|
MVEBU_G2_SMI_PHY_DATA_REG, 0x1140);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_SW_G2_SMI_ADDR,
|
|
MVEBU_G2_SMI_PHY_CMD_REG, 0x9620);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_SW_G2_SMI_ADDR,
|
|
MVEBU_G2_SMI_PHY_CMD_REG, 0x9640);
|
|
mii_multi_chip_mode_write(bus, 1, MVEBU_SW_G2_SMI_ADDR,
|
|
MVEBU_G2_SMI_PHY_CMD_REG, 0x9660);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_ENV_IS_IN_SPI_FLASH)
|
|
int ft_board_setup(void *blob, struct bd_info *bd)
|
|
{
|
|
int ret;
|
|
int spi_off;
|
|
int parts_off;
|
|
int part_off;
|
|
|
|
/* Fill SPI MTD partitions for Linux kernel on Espressobin */
|
|
if (!of_machine_is_compatible("marvell,armada-3720-espressobin"))
|
|
return 0;
|
|
|
|
spi_off = fdt_node_offset_by_compatible(blob, -1, "jedec,spi-nor");
|
|
if (spi_off < 0)
|
|
return 0;
|
|
|
|
/* Do not touch partitions if they are already defined */
|
|
if (fdt_subnode_offset(blob, spi_off, "partitions") >= 0)
|
|
return 0;
|
|
|
|
parts_off = fdt_add_subnode(blob, spi_off, "partitions");
|
|
if (parts_off < 0) {
|
|
printf("Can't add partitions node: %s\n", fdt_strerror(parts_off));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_string(blob, parts_off, "compatible", "fixed-partitions");
|
|
if (ret < 0) {
|
|
printf("Can't set compatible property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_u32(blob, parts_off, "#address-cells", 1);
|
|
if (ret < 0) {
|
|
printf("Can't set #address-cells property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_u32(blob, parts_off, "#size-cells", 1);
|
|
if (ret < 0) {
|
|
printf("Can't set #size-cells property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
/* Add u-boot-env partition */
|
|
|
|
part_off = fdt_add_subnode(blob, parts_off, "partition@u-boot-env");
|
|
if (part_off < 0) {
|
|
printf("Can't add partition@u-boot-env node: %s\n", fdt_strerror(part_off));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_u32(blob, part_off, "reg", CONFIG_ENV_OFFSET);
|
|
if (ret < 0) {
|
|
printf("Can't set partition@u-boot-env reg property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_appendprop_u32(blob, part_off, "reg", CONFIG_ENV_SIZE);
|
|
if (ret < 0) {
|
|
printf("Can't set partition@u-boot-env reg property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_string(blob, part_off, "label", "u-boot-env");
|
|
if (ret < 0) {
|
|
printf("Can't set partition@u-boot-env label property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
/* Add firmware partition */
|
|
|
|
part_off = fdt_add_subnode(blob, parts_off, "partition@firmware");
|
|
if (part_off < 0) {
|
|
printf("Can't add partition@firmware node: %s\n", fdt_strerror(part_off));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_u32(blob, part_off, "reg", 0);
|
|
if (ret < 0) {
|
|
printf("Can't set partition@firmware reg property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_appendprop_u32(blob, part_off, "reg", CONFIG_ENV_OFFSET);
|
|
if (ret < 0) {
|
|
printf("Can't set partition@firmware reg property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
ret = fdt_setprop_string(blob, part_off, "label", "firmware");
|
|
if (ret < 0) {
|
|
printf("Can't set partition@firmware label property: %s\n", fdt_strerror(ret));
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|