From da4105dfcd27c20e5cf4eb750f88938f56620d37 Mon Sep 17 00:00:00 2001 From: Lothar Felten Date: Fri, 31 Jan 2014 17:34:14 +0100 Subject: am335x: Initial support for Silica Pengwyn board This patch add support for the Silica Pengwyn board [1] The board is based on a TI AM3354 CPU [2] All jumpers removed it will boot from the SDcard, the console is on UART1 accessible via the FDTI -> USB. The on board NAND flash is supported and can act as boot medium, depending on jumper settings. USB Host, USB Device and Ethernet are also provided but untested. [1] http://www.silica.com/product/silica-pengwyn-board.html [2] http://www.ti.com/product/am3354 Signed-off-by: Lothar Felten [trini: Move CONFIG_BOARD_LATE_INIT into am335x_evm.h, drop unused spi0_pin_mux from Pengwyn support] Signed-off-by: Tom Rini --- board/silica/pengwyn/Makefile | 13 +++ board/silica/pengwyn/board.c | 207 ++++++++++++++++++++++++++++++++++++++++++ board/silica/pengwyn/board.h | 15 +++ board/silica/pengwyn/mux.c | 98 ++++++++++++++++++++ 4 files changed, 333 insertions(+) create mode 100644 board/silica/pengwyn/Makefile create mode 100644 board/silica/pengwyn/board.c create mode 100644 board/silica/pengwyn/board.h create mode 100644 board/silica/pengwyn/mux.c (limited to 'board/silica') diff --git a/board/silica/pengwyn/Makefile b/board/silica/pengwyn/Makefile new file mode 100644 index 0000000000..c8b4f9a280 --- /dev/null +++ b/board/silica/pengwyn/Makefile @@ -0,0 +1,13 @@ +# +# Makefile +# +# Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ +# +# SPDX-License-Identifier: GPL-2.0+ +# + +ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_NOR_BOOT),y) +obj-y := mux.o +endif + +obj-y += board.o diff --git a/board/silica/pengwyn/board.c b/board/silica/pengwyn/board.c new file mode 100644 index 0000000000..a553129d29 --- /dev/null +++ b/board/silica/pengwyn/board.c @@ -0,0 +1,207 @@ +/* + * board.c + * + * Copyright (C) 2013 Lothar Felten + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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(" 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 */ diff --git a/board/silica/pengwyn/board.h b/board/silica/pengwyn/board.h new file mode 100644 index 0000000000..05addf6bb2 --- /dev/null +++ b/board/silica/pengwyn/board.h @@ -0,0 +1,15 @@ +/* + * board.h + * + * Copyright (C) 2013 Lothar Felten + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _BOARD_H_ +#define _BOARD_H_ + +void enable_uart0_pin_mux(void); +void enable_board_pin_mux(void); + +#endif diff --git a/board/silica/pengwyn/mux.c b/board/silica/pengwyn/mux.c new file mode 100644 index 0000000000..c8be440a20 --- /dev/null +++ b/board/silica/pengwyn/mux.c @@ -0,0 +1,98 @@ +/* + * mux.c + * + * Copyright (C) 2013 Lothar Felten + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include "board.h" + +/* UART0 pins E15(rx),E16(tx) [E17(rts),E18(cts)] */ +static struct module_pin_mux uart0_pin_mux[] = { + {OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART0_RXD */ + {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */ + {-1}, +}; + +/* unused: UART1 pins D15(tx),D16(rx),D17(cts),D18(rts) */ + +/* I2C pins C16(scl)/C17(sda) */ +static struct module_pin_mux i2c0_pin_mux[] = { + {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | + PULLUDEN | SLEWCTRL)}, /* I2C0_DATA */ + {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | + PULLUDEN | SLEWCTRL)}, /* I2C0_SCLK */ + {-1}, +}; + +/* MMC0 pins */ +static struct module_pin_mux mmc0_pin_mux[] = { + {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */ + {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */ + {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */ + {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */ + {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */ + {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */ + {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */ + {-1}, +}; + +/* MII pins */ +static struct module_pin_mux mii1_pin_mux[] = { + {OFFSET(mii1_rxerr), MODE(0) | RXACTIVE}, /* MII1_RXERR */ + {OFFSET(mii1_txen), MODE(0)}, /* MII1_TXEN */ + {OFFSET(mii1_rxdv), MODE(0) | RXACTIVE}, /* MII1_RXDV */ + {OFFSET(mii1_txd3), MODE(0)}, /* MII1_TXD3 */ + {OFFSET(mii1_txd2), MODE(0)}, /* MII1_TXD2 */ + {OFFSET(mii1_txd1), MODE(0)}, /* MII1_TXD1 */ + {OFFSET(mii1_txd0), MODE(0)}, /* MII1_TXD0 */ + {OFFSET(mii1_txclk), MODE(0) | RXACTIVE}, /* MII1_TXCLK */ + {OFFSET(mii1_rxclk), MODE(0) | RXACTIVE}, /* MII1_RXCLK */ + {OFFSET(mii1_rxd3), MODE(0) | RXACTIVE}, /* MII1_RXD3 */ + {OFFSET(mii1_rxd2), MODE(0) | RXACTIVE}, /* MII1_RXD2 */ + {OFFSET(mii1_rxd1), MODE(0) | RXACTIVE}, /* MII1_RXD1 */ + {OFFSET(mii1_rxd0), MODE(0) | RXACTIVE}, /* MII1_RXD0 */ + {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */ + {OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */ + {-1}, +}; + +/* NAND pins */ +static struct module_pin_mux nand_pin_mux[] = { + {OFFSET(gpmc_ad0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD0 */ + {OFFSET(gpmc_ad1), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD1 */ + {OFFSET(gpmc_ad2), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD2 */ + {OFFSET(gpmc_ad3), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD3 */ + {OFFSET(gpmc_ad4), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD4 */ + {OFFSET(gpmc_ad5), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD5 */ + {OFFSET(gpmc_ad6), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD6 */ + {OFFSET(gpmc_ad7), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD7 */ + {OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* NAND WAIT */ + {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN | RXACTIVE)}, /* NAND_WPN */ + {OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN)}, /* NAND_CS0 */ + {OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN)}, /* NAND_ADV_ALE */ + {OFFSET(gpmc_oen_ren), (MODE(0) | PULLUDEN)}, /* NAND_OE */ + {OFFSET(gpmc_wen), (MODE(0) | PULLUDEN)}, /* NAND_WEN */ + {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLUDEN)}, /* NAND_BE_CLE */ + {-1}, +}; + +void enable_uart0_pin_mux(void) +{ + configure_module_pin_mux(uart0_pin_mux); +} + +void enable_board_pin_mux() +{ + configure_module_pin_mux(i2c0_pin_mux); + configure_module_pin_mux(uart0_pin_mux); + configure_module_pin_mux(mii1_pin_mux); + configure_module_pin_mux(mmc0_pin_mux); + configure_module_pin_mux(nand_pin_mux); +} -- cgit v1.2.1