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mvebu: a37xx: Add init for ESPRESSBin Topaz switch

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Implement the board-specific network init function for
ESPRESSOBin community board, setting the on-board Topaz
switch port to forward mode and allow network connection
through any of the available Etherenet ports.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Konstantin Porotchkin 2017-02-16 13:52:29 +02:00 committed by Stefan Roese
parent 3fbeb52bda
commit 47d85dddd1
1 changed files with 91 additions and 0 deletions
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91
board/Marvell/mvebu_armada-37xx/board.c
View file

@ -5,7 +5,9 @@
*/
#include <common.h>
#include <dm.h>
#include <i2c.h>
#include <phy.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
@ -22,6 +24,29 @@ DECLARE_GLOBAL_DATA_PTR;
#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)
/* 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)
{
const void *blob = gd->fdt_blob;
@ -156,3 +181,69 @@ int board_xhci_enable(void)
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)
* 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(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;
}