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/*
* Copyright (C) Marvell International Ltd. and its affiliates
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include "seq_exec.h"
#include "sys_env_lib.h"
#include "../../../drivers/ddr/marvell/a38x/ddr3_a38x.h"
#ifdef CONFIG_ARMADA_38X
enum unit_id sys_env_soc_unit_nums[MAX_UNITS_ID][MAX_DEV_ID_NUM] = {
/* 6820 6810 6811 6828 */
/* PEX_UNIT_ID */ { 4, 3, 3, 4},
/* ETH_GIG_UNIT_ID */ { 3, 2, 3, 3},
/* USB3H_UNIT_ID */ { 2, 2, 2, 2},
/* USB3D_UNIT_ID */ { 1, 1, 1, 1},
/* SATA_UNIT_ID */ { 2, 2, 2, 4},
/* QSGMII_UNIT_ID */ { 1, 0, 0, 1},
/* XAUI_UNIT_ID */ { 0, 0, 0, 0},
/* RXAUI_UNIT_ID */ { 0, 0, 0, 0}
};
#else /* if (CONFIG_ARMADA_39X) */
enum unit_id sys_env_soc_unit_nums[MAX_UNITS_ID][MAX_DEV_ID_NUM] = {
/* 6920 6928 */
/* PEX_UNIT_ID */ { 4, 4},
/* ETH_GIG_UNIT_ID */ { 3, 4},
/* USB3H_UNIT_ID */ { 1, 2},
/* USB3D_UNIT_ID */ { 0, 1},
/* SATA_UNIT_ID */ { 0, 4},
/* QSGMII_UNIT_ID */ { 0, 1},
/* XAUI_UNIT_ID */ { 1, 1},
/* RXAUI_UNIT_ID */ { 1, 1}
};
#endif
u32 g_dev_id = -1;
u32 mv_board_id_get(void)
{
#if defined(CONFIG_TARGET_DB_88F6820_GP)
return DB_GP_68XX_ID;
#else
/*
* Return 0 here for custom board as this should not be used
* for custom boards.
*/
return 0;
#endif
}
u32 mv_board_tclk_get(void)
{
u32 value;
value = (reg_read(DEVICE_SAMPLE_AT_RESET1_REG) >> 15) & 0x1;
switch (value) {
case (0x0):
return 250000000;
case (0x1):
return 200000000;
default:
return 0xffffffff;
}
}
u32 mv_board_id_index_get(u32 board_id)
{
/*
* Marvell Boards use 0x10 as base for Board ID:
* mask MSB to receive index for board ID
*/
return board_id & (MARVELL_BOARD_ID_MASK - 1);
}
/*
* sys_env_suspend_wakeup_check
* DESCRIPTION: Reads GPIO input for suspend-wakeup indication.
* INPUT: None.
* OUTPUT:
* RETURNS: u32 indicating suspend wakeup status:
* 0 - Not supported,
* 1 - supported: read magic word detect wakeup,
* 2 - detected wakeup from GPIO.
*/
enum suspend_wakeup_status sys_env_suspend_wakeup_check(void)
{
u32 reg, board_id_index, gpio;
struct board_wakeup_gpio board_gpio[] = MV_BOARD_WAKEUP_GPIO_INFO;
board_id_index = mv_board_id_index_get(mv_board_id_get());
if (!(sizeof(board_gpio) / sizeof(struct board_wakeup_gpio) >
board_id_index)) {
printf("\n_failed loading Suspend-Wakeup information (invalid board ID)\n");
return SUSPEND_WAKEUP_DISABLED;
}
/*
* - Detect if Suspend-Wakeup is supported on current board
* - Fetch the GPIO number for wakeup status input indication
*/
if (board_gpio[board_id_index].gpio_num == -1) {
/* Suspend to RAM is not supported */
return SUSPEND_WAKEUP_DISABLED;
} else if (board_gpio[board_id_index].gpio_num == -2) {
/*
* Suspend to RAM is supported but GPIO indication is
* not implemented - Skip
*/
return SUSPEND_WAKEUP_ENABLED;
} else {
gpio = board_gpio[board_id_index].gpio_num;
}
/* Initialize MPP for GPIO (set MPP = 0x0) */
reg = reg_read(MPP_CONTROL_REG(MPP_REG_NUM(gpio)));
/* reset MPP21 to 0x0, keep rest of MPP settings*/
reg &= ~MPP_MASK(gpio);
reg_write(MPP_CONTROL_REG(MPP_REG_NUM(gpio)), reg);
/* Initialize GPIO as input */
reg = reg_read(GPP_DATA_OUT_EN_REG(GPP_REG_NUM(gpio)));
reg |= GPP_MASK(gpio);
reg_write(GPP_DATA_OUT_EN_REG(GPP_REG_NUM(gpio)), reg);
/*
* Check GPP for input status from PIC: 0 - regular init,
* 1 - suspend wakeup
*/
reg = reg_read(GPP_DATA_IN_REG(GPP_REG_NUM(gpio)));
/* if GPIO is ON: wakeup from S2RAM indication detected */
return (reg & GPP_MASK(gpio)) ? SUSPEND_WAKEUP_ENABLED_GPIO_DETECTED :
SUSPEND_WAKEUP_DISABLED;
}
/*
* mv_ctrl_dev_id_index_get
*
* DESCRIPTION: return SOC device index
* INPUT: None
* OUTPUT: None
* RETURN:
* return SOC device index
*/
u32 sys_env_id_index_get(u32 ctrl_model)
{
switch (ctrl_model) {
case MV_6820_DEV_ID:
return MV_6820_INDEX;
case MV_6810_DEV_ID:
return MV_6810_INDEX;
case MV_6811_DEV_ID:
return MV_6811_INDEX;
case MV_6828_DEV_ID:
return MV_6828_INDEX;
case MV_6920_DEV_ID:
return MV_6920_INDEX;
case MV_6928_DEV_ID:
return MV_6928_INDEX;
default:
return MV_6820_INDEX;
}
}
u32 sys_env_unit_max_num_get(enum unit_id unit)
{
u32 dev_id_index;
if (unit >= MAX_UNITS_ID) {
printf("%s: Error: Wrong unit type (%u)\n", __func__, unit);
return 0;
}
dev_id_index = sys_env_id_index_get(sys_env_model_get());
return sys_env_soc_unit_nums[unit][dev_id_index];
}
/*
* sys_env_model_get
* DESCRIPTION: Returns 16bit describing the device model (ID) as defined
* in Vendor ID configuration register
*/
u16 sys_env_model_get(void)
{
u32 default_ctrl_id, ctrl_id = reg_read(DEV_ID_REG);
ctrl_id = (ctrl_id & (DEV_ID_REG_DEVICE_ID_MASK)) >>
DEV_ID_REG_DEVICE_ID_OFFS;
switch (ctrl_id) {
case MV_6820_DEV_ID:
case MV_6810_DEV_ID:
case MV_6811_DEV_ID:
case MV_6828_DEV_ID:
case MV_6920_DEV_ID:
case MV_6928_DEV_ID:
return ctrl_id;
default:
/* Device ID Default for A38x: 6820 , for A39x: 6920 */
#ifdef CONFIG_ARMADA_38X
default_ctrl_id = MV_6820_DEV_ID;
#else
default_ctrl_id = MV_6920_DEV_ID;
#endif
printf("%s: Error retrieving device ID (%x), using default ID = %x\n",
__func__, ctrl_id, default_ctrl_id);
return default_ctrl_id;
}
}
/*
* sys_env_device_id_get
* DESCRIPTION: Returns enum (0..7) index of the device model (ID)
*/
u32 sys_env_device_id_get(void)
{
char *device_id_str[7] = {
"6810", "6820", "6811", "6828", "NONE", "6920", "6928"
};
if (g_dev_id != -1)
return g_dev_id;
g_dev_id = reg_read(DEVICE_SAMPLE_AT_RESET1_REG);
g_dev_id = g_dev_id >> SAR_DEV_ID_OFFS & SAR_DEV_ID_MASK;
printf("Detected Device ID %s\n", device_id_str[g_dev_id]);
return g_dev_id;
}
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