diff options
Diffstat (limited to 'qemu/roms/u-boot/board/logicpd/am3517evm/am3517evm.c')
| -rw-r--r-- | qemu/roms/u-boot/board/logicpd/am3517evm/am3517evm.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/logicpd/am3517evm/am3517evm.c b/qemu/roms/u-boot/board/logicpd/am3517evm/am3517evm.c new file mode 100644 index 000000000..24be6eabf --- /dev/null +++ b/qemu/roms/u-boot/board/logicpd/am3517evm/am3517evm.c @@ -0,0 +1,177 @@ +/* + * am3517evm.c - board file for TI's AM3517 family of devices. + * + * Author: Vaibhav Hiremath <hvaibhav@ti.com> + * + * Based on ti/evm/evm.c + * + * Copyright (C) 2010 + * Texas Instruments Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/omap_musb.h> +#include <asm/arch/am35x_def.h> +#include <asm/arch/mem.h> +#include <asm/arch/mux.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/mmc_host_def.h> +#include <asm/arch/musb.h> +#include <asm/mach-types.h> +#include <asm/errno.h> +#include <asm/gpio.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <linux/usb/musb.h> +#include <i2c.h> +#include <netdev.h> +#include "am3517evm.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define AM3517_IP_SW_RESET 0x48002598 +#define CPGMACSS_SW_RST (1 << 1) + +/* + * Routine: board_init + * Description: Early hardware init. + */ +int board_init(void) +{ + gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ + /* board id for Linux */ + gd->bd->bi_arch_number = MACH_TYPE_OMAP3517EVM; + /* boot param addr */ + gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); + + return 0; +} + +#ifdef CONFIG_USB_MUSB_AM35X +static struct musb_hdrc_config musb_config = { + .multipoint = 1, + .dyn_fifo = 1, + .num_eps = 16, + .ram_bits = 12, +}; + +static struct omap_musb_board_data musb_board_data = { + .set_phy_power = am35x_musb_phy_power, + .clear_irq = am35x_musb_clear_irq, + .reset = am35x_musb_reset, +}; + +static struct musb_hdrc_platform_data musb_plat = { +#if defined(CONFIG_MUSB_HOST) + .mode = MUSB_HOST, +#elif defined(CONFIG_MUSB_GADGET) + .mode = MUSB_PERIPHERAL, +#else +#error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" +#endif + .config = &musb_config, + .power = 250, + .platform_ops = &am35x_ops, + .board_data = &musb_board_data, +}; + +static void am3517_evm_musb_init(void) +{ + /* + * Set up USB clock/mode in the DEVCONF2 register. + * USB2.0 PHY reference clock is 13 MHz + */ + clrsetbits_le32(&am35x_scm_general_regs->devconf2, + CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE, + CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | + CONF2_VBDTCTEN | CONF2_DATPOL); + + musb_register(&musb_plat, &musb_board_data, + (void *)AM35XX_IPSS_USBOTGSS_BASE); +} +#else +#define am3517_evm_musb_init() do {} while (0) +#endif + +/* + * Routine: misc_init_r + * Description: Init i2c, ethernet, etc... (done here so udelay works) + */ +int misc_init_r(void) +{ + volatile unsigned int ctr; + u32 reset; + +#ifdef CONFIG_SYS_I2C_OMAP34XX + i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); +#endif + + dieid_num_r(); + + am3517_evm_musb_init(); + + /* activate PHY reset */ + gpio_direction_output(30, 0); + gpio_set_value(30, 0); + + ctr = 0; + do { + udelay(1000); + ctr++; + } while (ctr < 300); + + /* deactivate PHY reset */ + gpio_set_value(30, 1); + + /* allow the PHY to stabilize and settle down */ + ctr = 0; + do { + udelay(1000); + ctr++; + } while (ctr < 300); + + /* ensure that the module is out of reset */ + reset = readl(AM3517_IP_SW_RESET); + reset &= (~CPGMACSS_SW_RST); + writel(reset,AM3517_IP_SW_RESET); + + return 0; +} + +/* + * Routine: set_muxconf_regs + * Description: Setting up the configuration Mux registers specific to the + * hardware. Many pins need to be moved from protect to primary + * mode. + */ +void set_muxconf_regs(void) +{ + MUX_AM3517EVM(); +} + +#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) +int board_mmc_init(bd_t *bis) +{ + return omap_mmc_init(0, 0, 0, -1, -1); +} +#endif + +#if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) +int board_eth_init(bd_t *bis) +{ + int rv, n = 0; + + rv = cpu_eth_init(bis); + if (rv > 0) + n += rv; + + rv = usb_eth_initialize(bis); + if (rv > 0) + n += rv; + + return n; +} +#endif |