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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010, 2018
* Allied Telesis <www.alliedtelesis.com>
*/
#include <common.h>
#include <linux/io.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include <asm/arch/mpp.h>
#include <asm/arch/gpio.h>
/* Note: GPIO differences between specific boards
*
* We're trying to avoid having multiple build targets for all the Kirkwood
* based boards one area where things tend to differ is GPIO usage. For the
* most part the GPIOs driven by the bootloader are similar enough in function
* that there is no harm in driving them.
*
* XZ4 XS6 XS16 GS24A GT40 GP24A GT24A
* GPIO39 - INT(<) NC MUX_RST_N(>) NC POE_DIS_N(>) NC
*/
#define SBX81LIFKW_OE_LOW ~(BIT(31) | BIT(30) | BIT(28) | BIT(27) | \
BIT(18) | BIT(17) | BIT(13) | BIT(12) | \
BIT(10))
#define SBX81LIFKW_OE_HIGH ~(BIT(0) | BIT(1) | BIT(7))
#define SBX81LIFKW_OE_VAL_LOW (BIT(31) | BIT(30) | BIT(28) | BIT(27))
#define SBX81LIFKW_OE_VAL_HIGH (BIT(0) | BIT(1))
#define MV88E6097_RESET 27
DECLARE_GLOBAL_DATA_PTR;
struct led {
u32 reg;
u32 value;
u32 mask;
};
struct led amber_solid = {
MVEBU_GPIO0_BASE,
BIT(10),
BIT(18) | BIT(10)
};
struct led green_solid = {
MVEBU_GPIO0_BASE,
BIT(18) | BIT(10),
BIT(18) | BIT(10)
};
struct led amber_flash = {
MVEBU_GPIO0_BASE,
0,
BIT(18) | BIT(10)
};
struct led green_flash = {
MVEBU_GPIO0_BASE,
BIT(18),
BIT(18) | BIT(10)
};
static void status_led_set(struct led *led)
{
clrsetbits_le32(led->reg, led->mask, led->value);
}
int board_early_init_f(void)
{
/*
* default gpio configuration
* There are maximum 64 gpios controlled through 2 sets of registers
* the below configuration configures mainly initial LED status
*/
mvebu_config_gpio(SBX81LIFKW_OE_VAL_LOW,
SBX81LIFKW_OE_VAL_HIGH,
SBX81LIFKW_OE_LOW, SBX81LIFKW_OE_HIGH);
/* Multi-Purpose Pins Functionality configuration */
static const u32 kwmpp_config[] = {
MPP0_SPI_SCn,
MPP1_SPI_MOSI,
MPP2_SPI_SCK,
MPP3_SPI_MISO,
MPP4_UART0_RXD,
MPP5_UART0_TXD,
MPP6_SYSRST_OUTn,
MPP7_PEX_RST_OUTn,
MPP8_TW_SDA,
MPP9_TW_SCK,
MPP10_GPO,
MPP11_GPIO,
MPP12_GPO,
MPP13_GPIO,
MPP14_GPIO,
MPP15_UART0_RTS,
MPP16_UART0_CTS,
MPP17_GPIO,
MPP18_GPO,
MPP19_GPO,
MPP20_GPIO,
MPP21_GPIO,
MPP22_GPIO,
MPP23_GPIO,
MPP24_GPIO,
MPP25_GPIO,
MPP26_GPIO,
MPP27_GPIO,
MPP28_GPIO,
MPP29_GPIO,
MPP30_GPIO,
MPP31_GPIO,
MPP32_GPIO,
MPP33_GPIO,
MPP34_GPIO,
MPP35_GPIO,
MPP36_GPIO,
MPP37_GPIO,
MPP38_GPIO,
MPP39_GPIO,
MPP40_GPIO,
MPP41_GPIO,
MPP42_GPIO,
MPP43_GPIO,
MPP44_GPIO,
MPP45_GPIO,
MPP46_GPIO,
MPP47_GPIO,
MPP48_GPIO,
MPP49_GPIO,
0
};
kirkwood_mpp_conf(kwmpp_config, NULL);
return 0;
}
int board_init(void)
{
/* Power-down unused subsystems. The required
* subsystems are:
*
* GE0 b0
* PEX0 PHY b1
* PEX0.0 b2
* TSU b5
* SDRAM b6
* RUNIT b7
*/
writel((BIT(0) | BIT(1) | BIT(2) |
BIT(5) | BIT(6) | BIT(7)),
KW_CPU_REG_BASE + 0x1c);
/* address of boot parameters */
gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
status_led_set(&amber_solid);
return 0;
}
#ifdef CONFIG_MV88E61XX_SWITCH
/* Configure and enable Switch and PHY */
void reset_phy(void)
{
/* Ensure the 88e6097 gets at least 10ms Reset
*/
kw_gpio_set_value(MV88E6097_RESET, 0);
mdelay(20);
kw_gpio_set_value(MV88E6097_RESET, 1);
mdelay(20);
}
#endif
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
status_led_set(&green_flash);
return 0;
}
#endif
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