maxbcm.c
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/*
* Copyright (C) 2014 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <miiphy.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include <linux/mbus.h>
#include "../drivers/ddr/mvebu/ddr3_hw_training.h"
#include "../arch/arm/mvebu-common/serdes/high_speed_env_spec.h"
DECLARE_GLOBAL_DATA_PTR;
/* Base addresses for the external device chip selects */
#define DEV_CS0_BASE 0xe0000000
#define DEV_CS1_BASE 0xe1000000
#define DEV_CS2_BASE 0xe2000000
#define DEV_CS3_BASE 0xe3000000
/* DDR3 static configuration */
MV_DRAM_MC_INIT ddr3_b0_maxbcm[MV_MAX_DDR3_STATIC_SIZE] = {
{0x00001400, 0x7301CC30}, /* DDR SDRAM Configuration Register */
{0x00001404, 0x30000820}, /* Dunit Control Low Register */
{0x00001408, 0x5515BAAB}, /* DDR SDRAM Timing (Low) Register */
{0x0000140C, 0x38DA3F97}, /* DDR SDRAM Timing (High) Register */
{0x00001410, 0x20100005}, /* DDR SDRAM Address Control Register */
{0x00001414, 0x0000F3FF}, /* DDR SDRAM Open Pages Control Reg */
{0x00001418, 0x00000e00}, /* DDR SDRAM Operation Register */
{0x0000141C, 0x00000672}, /* DDR SDRAM Mode Register */
{0x00001420, 0x00000004}, /* DDR SDRAM Extended Mode Register */
{0x00001424, 0x0000F3FF}, /* Dunit Control High Register */
{0x00001428, 0x0011A940}, /* Dunit Control High Register */
{0x0000142C, 0x014C5134}, /* Dunit Control High Register */
{0x0000147C, 0x0000D771},
{0x00001494, 0x00010000}, /* DDR SDRAM ODT Control (Low) Reg */
{0x0000149C, 0x00000001}, /* DDR Dunit ODT Control Register */
{0x000014A0, 0x00000001},
{0x000014A8, 0x00000101},
/* Recommended Settings from Marvell for 4 x 16 bit devices: */
{0x000014C0, 0x192424C9}, /* DRAM addr and Ctrl Driving Strenght*/
{0x000014C4, 0xAAA24C9}, /* DRAM Data and DQS Driving Strenght */
/*
* DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the
* training sequence
*/
{0x000200e8, 0x3FFF0E01},
{0x00020184, 0x3FFFFFE0}, /* Close fast path Window to - 2G */
{0x0001504, 0x3FFFFFE1}, /* CS0 Size */
{0x000150C, 0x00000000}, /* CS1 Size */
{0x0001514, 0x00000000}, /* CS2 Size */
{0x000151C, 0x00000000}, /* CS3 Size */
{0x0020220, 0x00000007}, /* Reserved */
{0x00001538, 0x0000000B}, /* Read Data Sample Delays Register */
{0x0000153C, 0x0000000B}, /* Read Data Ready Delay Register */
{0x000015D0, 0x00000670}, /* MR0 */
{0x000015D4, 0x00000044}, /* MR1 */
{0x000015D8, 0x00000018}, /* MR2 */
{0x000015DC, 0x00000000}, /* MR3 */
{0x000015E0, 0x00000001},
{0x000015E4, 0x00203c18}, /* ZQDS Configuration Register */
{0x000015EC, 0xF800A225}, /* DDR PHY */
{0x0, 0x0}
};
MV_DRAM_MODES maxbcm_ddr_modes[MV_DDR3_MODES_NUMBER] = {
{"maxbcm_1600-800", 0xB, 0x5, 0x0, A0, ddr3_b0_maxbcm, NULL},
};
extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];
/* MAXBCM: SERDES 0-4 PCIE, Serdes 7 = SGMII 0, all others = unconnected */
MV_BIN_SERDES_CFG maxbcm_serdes_cfg[] = {
{ MV_PEX_ROOT_COMPLEX, 0x20011111, 0x00000000,
{ PEX_BUS_MODE_X1, PEX_BUS_MODE_X1, PEX_BUS_DISABLED,
PEX_BUS_DISABLED },
0x1f, serdes_change_m_phy
}
};
MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
{
/* Only one mode supported for this board */
return &maxbcm_ddr_modes[0];
}
MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
{
return &maxbcm_serdes_cfg[0];
}
int board_early_init_f(void)
{
/*
* Don't configure MPP (pin multiplexing) and GPIO here,
* its already done in bin_hdr
*/
/*
* Setup some board specific mbus address windows
*/
mbus_dt_setup_win(&mbus_state, DEV_CS0_BASE, 16 << 20,
CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS0);
mbus_dt_setup_win(&mbus_state, DEV_CS1_BASE, 16 << 20,
CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
mbus_dt_setup_win(&mbus_state, DEV_CS2_BASE, 16 << 20,
CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS2);
mbus_dt_setup_win(&mbus_state, DEV_CS3_BASE, 16 << 20,
CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS3);
return 0;
}
int board_init(void)
{
/* adress of boot parameters */
gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
return 0;
}
int checkboard(void)
{
puts("Board: maxBCM\n");
return 0;
}
#ifdef CONFIG_RESET_PHY_R
/* Configure and enable MV88E6185 switch */
void reset_phy(void)
{
char *name = "neta0";
if (miiphy_set_current_dev(name))
return;
/* todo: fill this with the real setup / config code */
printf("88E6185 Initialized on %s\n", name);
}
#endif /* CONFIG_RESET_PHY_R */