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Diffstat (limited to 'board/silica/pengwyn/board.c')
| -rw-r--r-- | board/silica/pengwyn/board.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/board/silica/pengwyn/board.c b/board/silica/pengwyn/board.c new file mode 100644 index 0000000..a553129 --- /dev/null +++ b/board/silica/pengwyn/board.c @@ -0,0 +1,207 @@ +/* + * board.c + * + * Copyright (C) 2013 Lothar Felten <lothar.felten@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/hardware.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/clock.h> +#include <asm/arch/sys_proto.h> +#include <i2c.h> +#include <phy.h> +#include <cpsw.h> +#include "board.h" + +DECLARE_GLOBAL_DATA_PTR; + +static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + +#if defined(CONFIG_SPL_BUILD) + +/* DDR3 RAM timings */ +static const struct ddr_data ddr3_data = { + .datardsratio0 = MT41K128MJT187E_RD_DQS, + .datawdsratio0 = MT41K128MJT187E_WR_DQS, + .datafwsratio0 = MT41K128MJT187E_PHY_FIFO_WE, + .datawrsratio0 = MT41K128MJT187E_PHY_WR_DATA, +}; + +static const struct cmd_control ddr3_cmd_ctrl_data = { + .cmd0csratio = MT41K128MJT187E_RATIO, + .cmd0iclkout = MT41K128MJT187E_INVERT_CLKOUT, + .cmd1csratio = MT41K128MJT187E_RATIO, + .cmd1iclkout = MT41K128MJT187E_INVERT_CLKOUT, + .cmd2csratio = MT41K128MJT187E_RATIO, + .cmd2iclkout = MT41K128MJT187E_INVERT_CLKOUT, +}; + +static struct emif_regs ddr3_emif_reg_data = { + .sdram_config = MT41K128MJT187E_EMIF_SDCFG, + .ref_ctrl = MT41K128MJT187E_EMIF_SDREF, + .sdram_tim1 = MT41K128MJT187E_EMIF_TIM1, + .sdram_tim2 = MT41K128MJT187E_EMIF_TIM2, + .sdram_tim3 = MT41K128MJT187E_EMIF_TIM3, + .zq_config = MT41K128MJT187E_ZQ_CFG, + .emif_ddr_phy_ctlr_1 = MT41K128MJT187E_EMIF_READ_LATENCY | + PHY_EN_DYN_PWRDN, +}; + +const struct ctrl_ioregs ddr3_ioregs = { + .cm0ioctl = MT41K128MJT187E_IOCTRL_VALUE, + .cm1ioctl = MT41K128MJT187E_IOCTRL_VALUE, + .cm2ioctl = MT41K128MJT187E_IOCTRL_VALUE, + .dt0ioctl = MT41K128MJT187E_IOCTRL_VALUE, + .dt1ioctl = MT41K128MJT187E_IOCTRL_VALUE, +}; + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + /* break into full u-boot on 'c' */ + return serial_tstc() && serial_getc() == 'c'; +} +#endif + +#define OSC (V_OSCK/1000000) +const struct dpll_params dpll_ddr_266 = { + 266, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_303 = { + 303, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_400 = { + 400, OSC-1, 1, -1, -1, -1, -1}; + +void am33xx_spl_board_init(void) +{ + /* + * The pengwyn board uses the TPS650250 PMIC without I2C + * interface and will output the following fixed voltages: + * DCDC1=3V3 (IO) DCDC2=1V5 (DDR) DCDC3=1V26 (Vmpu) + * VLDO1=1V8 (IO) VLDO2=1V8(IO) + * Vcore=1V1 is fixed, generated by TPS62231 + */ + + /* Get the frequency */ + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); + + /* Set CORE Frequencies to OPP100 */ + do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); + + /* 720MHz cpu, this might change on newer board revisions */ + dpll_mpu_opp100.m = MPUPLL_M_720; + do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); +} + +const struct dpll_params *get_dpll_ddr_params(void) +{ + /* future configs can return other clock settings */ + return &dpll_ddr_303; +} + +void set_uart_mux_conf(void) +{ + enable_uart0_pin_mux(); +} + +void set_mux_conf_regs(void) +{ + enable_board_pin_mux(); +} + +void sdram_init(void) +{ + config_ddr(303, &ddr3_ioregs, &ddr3_data, + &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); +} +#endif /* if CONFIG_SPL_BUILD */ + +/* + * Basic board specific setup. Pinmux has been handled already. + */ +int board_init(void) +{ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + gpmc_init(); + return 0; +} + +#ifdef CONFIG_DRIVER_TI_CPSW +static void cpsw_control(int enabled) +{ + /* VTP can be added here */ + return; +} + +static struct cpsw_slave_data cpsw_slaves[] = { + { + .slave_reg_ofs = 0x208, + .sliver_reg_ofs = 0xd80, + .phy_id = 0, + .phy_if = PHY_INTERFACE_MODE_MII, + }, + { + .slave_reg_ofs = 0x308, + .sliver_reg_ofs = 0xdc0, + .phy_id = 1, + .phy_if = PHY_INTERFACE_MODE_MII, + }, +}; + +static struct cpsw_platform_data cpsw_data = { + .mdio_base = CPSW_MDIO_BASE, + .cpsw_base = CPSW_BASE, + .mdio_div = 0xff, + .channels = 8, + .cpdma_reg_ofs = 0x800, + .slaves = 1, + .slave_data = cpsw_slaves, + .ale_reg_ofs = 0xd00, + .ale_entries = 1024, + .host_port_reg_ofs = 0x108, + .hw_stats_reg_ofs = 0x900, + .bd_ram_ofs = 0x2000, + .mac_control = (1 << 5), + .control = cpsw_control, + .host_port_num = 0, + .version = CPSW_CTRL_VERSION_2, +}; + +int board_eth_init(bd_t *bis) +{ + int rv, n = 0; + uint8_t mac_addr[6]; + uint32_t mac_hi, mac_lo; + + if (!eth_getenv_enetaddr("ethaddr", mac_addr)) { + printf("<ethaddr> not set. Reading from E-fuse\n"); + /* try reading mac address from efuse */ + mac_lo = readl(&cdev->macid0l); + mac_hi = readl(&cdev->macid0h); + mac_addr[0] = mac_hi & 0xFF; + mac_addr[1] = (mac_hi & 0xFF00) >> 8; + mac_addr[2] = (mac_hi & 0xFF0000) >> 16; + mac_addr[3] = (mac_hi & 0xFF000000) >> 24; + mac_addr[4] = mac_lo & 0xFF; + mac_addr[5] = (mac_lo & 0xFF00) >> 8; + + if (is_valid_ether_addr(mac_addr)) + eth_setenv_enetaddr("ethaddr", mac_addr); + else + return n; + } + + writel(MII_MODE_ENABLE, &cdev->miisel); + + rv = cpsw_register(&cpsw_data); + if (rv < 0) + printf("Error %d registering CPSW switch\n", rv); + else + n += rv; + return n; +} +#endif /* if CONFIG_DRIVER_TI_CPSW */ |