mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-24 20:13:39 +00:00
271 lines
6.7 KiB
C
271 lines
6.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) Marvell International Ltd. and its affiliates
|
|
*/
|
|
|
|
#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"
|
|
|
|
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}
|
|
};
|
|
|
|
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;
|
|
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:
|
|
return ctrl_id;
|
|
default:
|
|
/* Device ID Default for A38x: 6820 */
|
|
default_ctrl_id = MV_6820_DEV_ID;
|
|
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[4] = {
|
|
"6810", "6820", "6811", "6828",
|
|
};
|
|
|
|
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", g_dev_id < 4 ? device_id_str[g_dev_id] : "NONE");
|
|
|
|
return g_dev_id;
|
|
}
|
|
|
|
/*
|
|
* sys_env_device_rev_get - Get Marvell controller device revision number
|
|
*
|
|
* DESCRIPTION:
|
|
* This function returns 8bit describing the device revision as defined
|
|
* Revision ID Register.
|
|
*
|
|
* INPUT:
|
|
* None.
|
|
*
|
|
* OUTPUT:
|
|
* None.
|
|
*
|
|
* RETURN:
|
|
* 8bit desscribing Marvell controller revision number
|
|
*/
|
|
u8 sys_env_device_rev_get(void)
|
|
{
|
|
u32 value;
|
|
|
|
value = reg_read(DEV_VERSION_ID_REG);
|
|
return (value & (REVISON_ID_MASK)) >> REVISON_ID_OFFS;
|
|
}
|
|
|
|
void mv_rtc_config(void)
|
|
{
|
|
u32 i, val;
|
|
|
|
/* Activate pipe0 for read/write transaction, and set XBAR client number #1 */
|
|
val = 0x1 << DFX_PIPE_SELECT_PIPE0_ACTIVE_OFFS |
|
|
0x1 << DFX_PIPE_SELECT_XBAR_CLIENT_SEL_OFFS;
|
|
writel(val, MVEBU_DFX_BASE);
|
|
|
|
/* Set new RTC value for all memory wrappers */
|
|
for (i = 0; i < RTC_MEMORY_WRAPPER_COUNT; i++)
|
|
reg_write(RTC_MEMORY_WRAPPER_REG(i), RTC_MEMORY_WRAPPER_CTRL_VAL);
|
|
}
|
|
|
|
void mv_avs_init(void)
|
|
{
|
|
u32 sar_freq;
|
|
|
|
reg_write(AVS_DEBUG_CNTR_REG, AVS_DEBUG_CNTR_DEFAULT_VALUE);
|
|
reg_write(AVS_DEBUG_CNTR_REG, AVS_DEBUG_CNTR_DEFAULT_VALUE);
|
|
|
|
sar_freq = reg_read(DEVICE_SAMPLE_AT_RESET1_REG);
|
|
sar_freq = sar_freq >> SAR_FREQ_OFFSET & SAR_FREQ_MASK;
|
|
|
|
/* Set AVS value only for core frequency of 1600MHz or less.
|
|
* For higher frequency leave the default value.
|
|
*/
|
|
if (sar_freq <= 0xd) {
|
|
u32 avs_reg_data = reg_read(AVS_ENABLED_CONTROL);
|
|
|
|
avs_reg_data &= ~(AVS_LOW_VDD_LIMIT_MASK
|
|
| AVS_HIGH_VDD_LIMIT_MASK);
|
|
avs_reg_data |= AVS_LOW_VDD_SLOW_VAL | AVS_HIGH_VDD_SLOW_VAL;
|
|
reg_write(AVS_ENABLED_CONTROL, avs_reg_data);
|
|
}
|
|
}
|