1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2013 Lothar Felten <lothar.felten@gmail.com>
11 #include <asm/arch/cpu.h>
12 #include <asm/arch/hardware.h>
13 #include <asm/arch/ddr_defs.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/sys_proto.h>
21 DECLARE_GLOBAL_DATA_PTR
;
23 static struct ctrl_dev
*cdev
= (struct ctrl_dev
*)CTRL_DEVICE_BASE
;
25 #if defined(CONFIG_SPL_BUILD)
27 /* DDR3 RAM timings */
28 static const struct ddr_data ddr3_data
= {
29 .datardsratio0
= MT41K128MJT187E_RD_DQS
,
30 .datawdsratio0
= MT41K128MJT187E_WR_DQS
,
31 .datafwsratio0
= MT41K128MJT187E_PHY_FIFO_WE
,
32 .datawrsratio0
= MT41K128MJT187E_PHY_WR_DATA
,
35 static const struct cmd_control ddr3_cmd_ctrl_data
= {
36 .cmd0csratio
= MT41K128MJT187E_RATIO
,
37 .cmd0iclkout
= MT41K128MJT187E_INVERT_CLKOUT
,
38 .cmd1csratio
= MT41K128MJT187E_RATIO
,
39 .cmd1iclkout
= MT41K128MJT187E_INVERT_CLKOUT
,
40 .cmd2csratio
= MT41K128MJT187E_RATIO
,
41 .cmd2iclkout
= MT41K128MJT187E_INVERT_CLKOUT
,
44 static struct emif_regs ddr3_emif_reg_data
= {
45 .sdram_config
= MT41K128MJT187E_EMIF_SDCFG
,
46 .ref_ctrl
= MT41K128MJT187E_EMIF_SDREF
,
47 .sdram_tim1
= MT41K128MJT187E_EMIF_TIM1
,
48 .sdram_tim2
= MT41K128MJT187E_EMIF_TIM2
,
49 .sdram_tim3
= MT41K128MJT187E_EMIF_TIM3
,
50 .zq_config
= MT41K128MJT187E_ZQ_CFG
,
51 .emif_ddr_phy_ctlr_1
= MT41K128MJT187E_EMIF_READ_LATENCY
|
55 const struct ctrl_ioregs ddr3_ioregs
= {
56 .cm0ioctl
= MT41K128MJT187E_IOCTRL_VALUE
,
57 .cm1ioctl
= MT41K128MJT187E_IOCTRL_VALUE
,
58 .cm2ioctl
= MT41K128MJT187E_IOCTRL_VALUE
,
59 .dt0ioctl
= MT41K128MJT187E_IOCTRL_VALUE
,
60 .dt1ioctl
= MT41K128MJT187E_IOCTRL_VALUE
,
63 #ifdef CONFIG_SPL_OS_BOOT
64 int spl_start_uboot(void)
66 /* break into full u-boot on 'c' */
67 return serial_tstc() && serial_getc() == 'c';
71 #define OSC (V_OSCK/1000000)
72 const struct dpll_params dpll_ddr_266
= {
73 266, OSC
-1, 1, -1, -1, -1, -1};
74 const struct dpll_params dpll_ddr_303
= {
75 303, OSC
-1, 1, -1, -1, -1, -1};
76 const struct dpll_params dpll_ddr_400
= {
77 400, OSC
-1, 1, -1, -1, -1, -1};
79 void am33xx_spl_board_init(void)
82 * The pengwyn board uses the TPS650250 PMIC without I2C
83 * interface and will output the following fixed voltages:
84 * DCDC1=3V3 (IO) DCDC2=1V5 (DDR) DCDC3=1V26 (Vmpu)
85 * VLDO1=1V8 (IO) VLDO2=1V8(IO)
86 * Vcore=1V1 is fixed, generated by TPS62231
89 /* Get the frequency */
90 dpll_mpu_opp100
.m
= am335x_get_efuse_mpu_max_freq(cdev
);
92 /* Set CORE Frequencies to OPP100 */
93 do_setup_dpll(&dpll_core_regs
, &dpll_core_opp100
);
95 /* 720MHz cpu, this might change on newer board revisions */
96 dpll_mpu_opp100
.m
= MPUPLL_M_720
;
97 do_setup_dpll(&dpll_mpu_regs
, &dpll_mpu_opp100
);
100 const struct dpll_params
*get_dpll_ddr_params(void)
102 /* future configs can return other clock settings */
103 return &dpll_ddr_303
;
106 void set_uart_mux_conf(void)
108 enable_uart0_pin_mux();
111 void set_mux_conf_regs(void)
113 enable_board_pin_mux();
116 void sdram_init(void)
118 config_ddr(303, &ddr3_ioregs
, &ddr3_data
,
119 &ddr3_cmd_ctrl_data
, &ddr3_emif_reg_data
, 0);
121 #endif /* if CONFIG_SPL_BUILD */
124 * Basic board specific setup. Pinmux has been handled already.
128 i2c_init(CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
129 gd
->bd
->bi_boot_params
= CONFIG_SYS_SDRAM_BASE
+ 0x100;
134 #ifdef CONFIG_DRIVER_TI_CPSW
135 static void cpsw_control(int enabled
)
137 /* VTP can be added here */
141 static struct cpsw_slave_data cpsw_slaves
[] = {
143 .slave_reg_ofs
= 0x208,
144 .sliver_reg_ofs
= 0xd80,
146 .phy_if
= PHY_INTERFACE_MODE_MII
,
150 static struct cpsw_platform_data cpsw_data
= {
151 .mdio_base
= CPSW_MDIO_BASE
,
152 .cpsw_base
= CPSW_BASE
,
155 .cpdma_reg_ofs
= 0x800,
157 .slave_data
= cpsw_slaves
,
158 .ale_reg_ofs
= 0xd00,
160 .host_port_reg_ofs
= 0x108,
161 .hw_stats_reg_ofs
= 0x900,
162 .bd_ram_ofs
= 0x2000,
163 .mac_control
= (1 << 5),
164 .control
= cpsw_control
,
166 .version
= CPSW_CTRL_VERSION_2
,
169 int board_eth_init(bd_t
*bis
)
173 uint32_t mac_hi
, mac_lo
;
175 if (!eth_env_get_enetaddr("ethaddr", mac_addr
)) {
176 printf("<ethaddr> not set. Reading from E-fuse\n");
177 /* try reading mac address from efuse */
178 mac_lo
= readl(&cdev
->macid0l
);
179 mac_hi
= readl(&cdev
->macid0h
);
180 mac_addr
[0] = mac_hi
& 0xFF;
181 mac_addr
[1] = (mac_hi
& 0xFF00) >> 8;
182 mac_addr
[2] = (mac_hi
& 0xFF0000) >> 16;
183 mac_addr
[3] = (mac_hi
& 0xFF000000) >> 24;
184 mac_addr
[4] = mac_lo
& 0xFF;
185 mac_addr
[5] = (mac_lo
& 0xFF00) >> 8;
187 if (is_valid_ethaddr(mac_addr
))
188 eth_env_set_enetaddr("ethaddr", mac_addr
);
193 writel(MII_MODE_ENABLE
, &cdev
->miisel
);
195 rv
= cpsw_register(&cpsw_data
);
197 printf("Error %d registering CPSW switch\n", rv
);
202 #endif /* if CONFIG_DRIVER_TI_CPSW */