diff options
Diffstat (limited to 'qemu/roms/u-boot/board/davinci/da8xxevm/da830evm.c')
| -rw-r--r-- | qemu/roms/u-boot/board/davinci/da8xxevm/da830evm.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/davinci/da8xxevm/da830evm.c b/qemu/roms/u-boot/board/davinci/da8xxevm/da830evm.c new file mode 100644 index 000000000..4f5c780e5 --- /dev/null +++ b/qemu/roms/u-boot/board/davinci/da8xxevm/da830evm.c @@ -0,0 +1,210 @@ +/* + * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com> + * + * Base on code from TI. Original Notices follow: + * + * (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/ + * + * Modified for DA8xx EVM. + * + * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> + * + * Parts are shamelessly stolen from various TI sources, original copyright + * follows: + * ----------------------------------------------------------------- + * + * Copyright (C) 2004 Texas Instruments. + * + * ---------------------------------------------------------------------------- + * SPDX-License-Identifier: GPL-2.0+ + * ---------------------------------------------------------------------------- + */ + +#include <common.h> +#include <i2c.h> +#include <net.h> +#include <netdev.h> +#include <asm/arch/hardware.h> +#include <asm/arch/emif_defs.h> +#include <asm/arch/emac_defs.h> +#include <asm/arch/pinmux_defs.h> +#include <asm/io.h> +#include <nand.h> +#include <asm/arch/nand_defs.h> +#include <asm/arch/davinci_misc.h> + +#ifdef CONFIG_DAVINCI_MMC +#include <mmc.h> +#include <asm/arch/sdmmc_defs.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +static const struct pinmux_resource pinmuxes[] = { +#ifdef CONFIG_SPI_FLASH + PINMUX_ITEM(spi0_pins_base), + PINMUX_ITEM(spi0_pins_scs0), + PINMUX_ITEM(spi0_pins_ena), +#endif + PINMUX_ITEM(uart2_pins_txrx), + PINMUX_ITEM(i2c0_pins), +#ifdef CONFIG_USB_DA8XX + PINMUX_ITEM(usb_pins), +#endif +#ifdef CONFIG_USE_NAND + PINMUX_ITEM(emifa_pins), + PINMUX_ITEM(emifa_pins_cs0), + PINMUX_ITEM(emifa_pins_cs2), + PINMUX_ITEM(emifa_pins_cs3), +#endif +#if defined(CONFIG_DRIVER_TI_EMAC) + PINMUX_ITEM(emac_pins_rmii), + PINMUX_ITEM(emac_pins_mdio), + PINMUX_ITEM(emac_pins_rmii_clk_source), +#endif +#ifdef CONFIG_DAVINCI_MMC + PINMUX_ITEM(mmc0_pins_8bit) +#endif +}; + +static const struct lpsc_resource lpsc[] = { + { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ + { DAVINCI_LPSC_SPI0 }, /* Serial Flash */ + { DAVINCI_LPSC_EMAC }, /* image download */ + { DAVINCI_LPSC_UART2 }, /* console */ + { DAVINCI_LPSC_GPIO }, +#ifdef CONFIG_DAVINCI_MMC + { DAVINCI_LPSC_MMC_SD }, +#endif + +}; + +#ifdef CONFIG_DAVINCI_MMC +static struct davinci_mmc mmc_sd0 = { + .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE, + .host_caps = MMC_MODE_8BIT, + .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, + .version = MMC_CTLR_VERSION_2, +}; + +int board_mmc_init(bd_t *bis) +{ + mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID); + + printf("%x\n", mmc_sd0.input_clk); + + /* Add slot-0 to mmc subsystem */ + return davinci_mmc_init(bis, &mmc_sd0); +} +#endif + +int board_init(void) +{ +#ifndef CONFIG_USE_IRQ + irq_init(); +#endif + +#ifdef CONFIG_NAND_DAVINCI + /* EMIFA 100MHz clock select */ + writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2, + &davinci_syscfg_regs->cfgchip3); + /* NAND CS setup */ + writel((DAVINCI_ABCR_WSETUP(0) | + DAVINCI_ABCR_WSTROBE(2) | + DAVINCI_ABCR_WHOLD(0) | + DAVINCI_ABCR_RSETUP(0) | + DAVINCI_ABCR_RSTROBE(2) | + DAVINCI_ABCR_RHOLD(0) | + DAVINCI_ABCR_TA(2) | + DAVINCI_ABCR_ASIZE_8BIT), + &davinci_emif_regs->ab2cr); +#endif + + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + /* + * Power on required peripherals + * ARM does not have access by default to PSC0 and PSC1 + * assuming here that the DSP bootloader has set the IOPU + * such that PSC access is available to ARM + */ + if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc))) + return 1; + + /* setup the SUSPSRC for ARM to control emulation suspend */ + writel(readl(&davinci_syscfg_regs->suspsrc) & + ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | + DAVINCI_SYSCFG_SUSPSRC_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | + DAVINCI_SYSCFG_SUSPSRC_UART2), + &davinci_syscfg_regs->suspsrc); + + /* configure pinmux settings */ + if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) + return 1; + + /* enable the console UART */ + writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | + DAVINCI_UART_PWREMU_MGMT_UTRST), + &davinci_uart2_ctrl_regs->pwremu_mgmt); + + return(0); +} + + +#ifdef CONFIG_NAND_DAVINCI +int board_nand_init(struct nand_chip *nand) +{ + davinci_nand_init(nand); + + return 0; +} +#endif + +#if defined(CONFIG_DRIVER_TI_EMAC) + +#define PHY_SW_I2C_ADDR 0x5f /* Address of PHY on i2c bus */ + +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ + u_int8_t mac_addr[6]; + u_int8_t switch_start_cmd[2] = { 0x01, 0x23 }; + struct eth_device *dev; + + /* Read Ethernet MAC address from EEPROM */ + if (dvevm_read_mac_address(mac_addr)) + /* set address env if not already set */ + davinci_sync_env_enetaddr(mac_addr); + + /* read the address back from env */ + if (!eth_getenv_enetaddr("ethaddr", mac_addr)) + return -1; + + /* enable the Ethernet switch in the 3 port PHY */ + if (i2c_write(PHY_SW_I2C_ADDR, 0, 0, + switch_start_cmd, sizeof(switch_start_cmd))) { + printf("Ethernet switch start failed!\n"); + return -1; + } + + /* finally, initialise the driver */ + if (!davinci_emac_initialize()) { + printf("Error: Ethernet init failed!\n"); + return -1; + } + + dev = eth_get_dev(); + + /* provide the resulting addr to the driver */ + memcpy(dev->enetaddr, mac_addr, 6); + dev->write_hwaddr(dev); + + return 0; +} +#endif /* CONFIG_DRIVER_TI_EMAC */ |