diff options
Diffstat (limited to 'qemu/roms/u-boot/board/davinci/da8xxevm/da850evm.c')
| -rw-r--r-- | qemu/roms/u-boot/board/davinci/da8xxevm/da850evm.c | 494 |
1 files changed, 0 insertions, 494 deletions
diff --git a/qemu/roms/u-boot/board/davinci/da8xxevm/da850evm.c b/qemu/roms/u-boot/board/davinci/da8xxevm/da850evm.c deleted file mode 100644 index 85b483096..000000000 --- a/qemu/roms/u-boot/board/davinci/da8xxevm/da850evm.c +++ /dev/null @@ -1,494 +0,0 @@ -/* - * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ - * - * Based on da830evm.c. Original Copyrights follow: - * - * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com> - * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <i2c.h> -#include <net.h> -#include <netdev.h> -#include <spi.h> -#include <spi_flash.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 <asm/arch/davinci_misc.h> -#include <asm/errno.h> -#include <hwconfig.h> - -#ifdef CONFIG_DAVINCI_MMC -#include <mmc.h> -#include <asm/arch/sdmmc_defs.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_DRIVER_TI_EMAC -#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII -#define HAS_RMII 1 -#else -#define HAS_RMII 0 -#endif -#endif /* CONFIG_DRIVER_TI_EMAC */ - -#define CFG_MAC_ADDR_SPI_BUS 0 -#define CFG_MAC_ADDR_SPI_CS 0 -#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED -#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3 - -#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K) - -#ifdef CONFIG_MAC_ADDR_IN_SPIFLASH -static int get_mac_addr(u8 *addr) -{ - struct spi_flash *flash; - int ret; - - flash = spi_flash_probe(CFG_MAC_ADDR_SPI_BUS, CFG_MAC_ADDR_SPI_CS, - CFG_MAC_ADDR_SPI_MAX_HZ, CFG_MAC_ADDR_SPI_MODE); - if (!flash) { - printf("Error - unable to probe SPI flash.\n"); - return -1; - } - - ret = spi_flash_read(flash, CFG_MAC_ADDR_OFFSET, 6, addr); - if (ret) { - printf("Error - unable to read MAC address from SPI flash.\n"); - return -1; - } - - return ret; -} -#endif - -void dsp_lpsc_on(unsigned domain, unsigned int id) -{ - dv_reg_p mdstat, mdctl, ptstat, ptcmd; - struct davinci_psc_regs *psc_regs; - - psc_regs = davinci_psc0_regs; - mdstat = &psc_regs->psc0.mdstat[id]; - mdctl = &psc_regs->psc0.mdctl[id]; - ptstat = &psc_regs->ptstat; - ptcmd = &psc_regs->ptcmd; - - while (*ptstat & (0x1 << domain)) - ; - - if ((*mdstat & 0x1f) == 0x03) - return; /* Already on and enabled */ - - *mdctl |= 0x03; - - *ptcmd = 0x1 << domain; - - while (*ptstat & (0x1 << domain)) - ; - while ((*mdstat & 0x1f) != 0x03) - ; /* Probably an overkill... */ -} - -static void dspwake(void) -{ - unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE; - u32 val; - - /* if the device is ARM only, return */ - if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10) - return; - - if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL)) - return; - - *resetvect++ = 0x1E000; /* DSP Idle */ - /* clear out the next 10 words as NOP */ - memset(resetvect, 0, sizeof(unsigned) *10); - - /* setup the DSP reset vector */ - writel(DAVINCI_L3CBARAM_BASE, HOST1CFG); - - dsp_lpsc_on(1, DAVINCI_LPSC_GEM); - val = readl(PSC0_MDCTL + (15 * 4)); - val |= 0x100; - writel(val, (PSC0_MDCTL + (15 * 4))); -} - -int misc_init_r(void) -{ - dspwake(); - -#if defined(CONFIG_MAC_ADDR_IN_SPIFLASH) || defined(CONFIG_MAC_ADDR_IN_EEPROM) - - uchar env_enetaddr[6]; - int enetaddr_found; - - enetaddr_found = eth_getenv_enetaddr("ethaddr", env_enetaddr); - -#ifdef CONFIG_MAC_ADDR_IN_SPIFLASH - int spi_mac_read; - uchar buff[6]; - - spi_mac_read = get_mac_addr(buff); - - /* - * MAC address not present in the environment - * try and read the MAC address from SPI flash - * and set it. - */ - if (!enetaddr_found) { - if (!spi_mac_read) { - if (is_valid_ether_addr(buff)) { - if (eth_setenv_enetaddr("ethaddr", buff)) { - printf("Warning: Failed to " - "set MAC address from SPI flash\n"); - } - } else { - printf("Warning: Invalid " - "MAC address read from SPI flash\n"); - } - } - } else { - /* - * MAC address present in environment compare it with - * the MAC address in SPI flash and warn on mismatch - */ - if (!spi_mac_read && is_valid_ether_addr(buff) && - memcmp(env_enetaddr, buff, 6)) - printf("Warning: MAC address in SPI flash don't match " - "with the MAC address in the environment\n"); - printf("Default using MAC address from environment\n"); - } -#endif - uint8_t enetaddr[8]; - int eeprom_mac_read; - - /* Read Ethernet MAC address from EEPROM */ - eeprom_mac_read = dvevm_read_mac_address(enetaddr); - - /* - * MAC address not present in the environment - * try and read the MAC address from EEPROM flash - * and set it. - */ - if (!enetaddr_found) { - if (eeprom_mac_read) - /* Set Ethernet MAC address from EEPROM */ - davinci_sync_env_enetaddr(enetaddr); - } else { - /* - * MAC address present in environment compare it with - * the MAC address in EEPROM and warn on mismatch - */ - if (eeprom_mac_read && memcmp(enetaddr, env_enetaddr, 6)) - printf("Warning: MAC address in EEPROM don't match " - "with the MAC address in the environment\n"); - printf("Default using MAC address from environment\n"); - } - -#endif - return 0; -} - -#ifdef CONFIG_DAVINCI_MMC -static struct davinci_mmc mmc_sd0 = { - .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE, - .host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */ - .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); - - /* Add slot-0 to mmc subsystem */ - return davinci_mmc_init(bis, &mmc_sd0); -} -#endif - -static const struct pinmux_config gpio_pins[] = { -#ifdef CONFIG_USE_NOR - /* GP0[11] is required for NOR to work on Rev 3 EVMs */ - { pinmux(0), 8, 4 }, /* GP0[11] */ -#endif -#ifdef CONFIG_DAVINCI_MMC - /* GP0[11] is required for SD to work on Rev 3 EVMs */ - { pinmux(0), 8, 4 }, /* GP0[11] */ -#endif -}; - -const struct pinmux_resource pinmuxes[] = { -#ifdef CONFIG_DRIVER_TI_EMAC - PINMUX_ITEM(emac_pins_mdio), -#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII - PINMUX_ITEM(emac_pins_rmii), -#else - PINMUX_ITEM(emac_pins_mii), -#endif -#endif -#ifdef CONFIG_SPI_FLASH - PINMUX_ITEM(spi1_pins_base), - PINMUX_ITEM(spi1_pins_scs0), -#endif - PINMUX_ITEM(uart2_pins_txrx), - PINMUX_ITEM(uart2_pins_rtscts), - PINMUX_ITEM(i2c0_pins), -#ifdef CONFIG_NAND_DAVINCI - PINMUX_ITEM(emifa_pins_cs3), - PINMUX_ITEM(emifa_pins_cs4), - PINMUX_ITEM(emifa_pins_nand), -#elif defined(CONFIG_USE_NOR) - PINMUX_ITEM(emifa_pins_cs2), - PINMUX_ITEM(emifa_pins_nor), -#endif - PINMUX_ITEM(gpio_pins), -#ifdef CONFIG_DAVINCI_MMC - PINMUX_ITEM(mmc0_pins), -#endif -}; - -const int pinmuxes_size = ARRAY_SIZE(pinmuxes); - -const struct lpsc_resource lpsc[] = { - { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ - { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ - { DAVINCI_LPSC_EMAC }, /* image download */ - { DAVINCI_LPSC_UART2 }, /* console */ - { DAVINCI_LPSC_GPIO }, -#ifdef CONFIG_DAVINCI_MMC - { DAVINCI_LPSC_MMC_SD }, -#endif -}; - -const int lpsc_size = ARRAY_SIZE(lpsc); - -#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK -#define CONFIG_DA850_EVM_MAX_CPU_CLK 300000000 -#endif - -#define REV_AM18X_EVM 0x100 - -/* - * get_board_rev() - setup to pass kernel board revision information - * Returns: - * bit[0-3] Maximum cpu clock rate supported by onboard SoC - * 0000b - 300 MHz - * 0001b - 372 MHz - * 0010b - 408 MHz - * 0011b - 456 MHz - */ -u32 get_board_rev(void) -{ - char *s; - u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK; - u32 rev = 0; - - s = getenv("maxcpuclk"); - if (s) - maxcpuclk = simple_strtoul(s, NULL, 10); - - if (maxcpuclk >= 456000000) - rev = 3; - else if (maxcpuclk >= 408000000) - rev = 2; - else if (maxcpuclk >= 372000000) - rev = 1; -#ifdef CONFIG_DA850_AM18X_EVM - rev |= REV_AM18X_EVM; -#endif - return rev; -} - -int board_early_init_f(void) -{ - /* - * 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; - - return 0; -} - -int board_init(void) -{ -#ifndef CONFIG_USE_IRQ - irq_init(); -#endif - -#ifdef CONFIG_NAND_DAVINCI - /* - * NAND CS setup - cycle counts based on da850evm NAND timings in the - * Linux kernel @ 25MHz EMIFA - */ - writel((DAVINCI_ABCR_WSETUP(2) | - DAVINCI_ABCR_WSTROBE(2) | - DAVINCI_ABCR_WHOLD(1) | - DAVINCI_ABCR_RSETUP(1) | - DAVINCI_ABCR_RSTROBE(4) | - DAVINCI_ABCR_RHOLD(0) | - DAVINCI_ABCR_TA(1) | - DAVINCI_ABCR_ASIZE_8BIT), - &davinci_emif_regs->ab2cr); /* CS3 */ -#endif - - /* arch number of the board */ - gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM; - - /* address of boot parameters */ - gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; - - /* 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_SPI1 | 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; - -#ifdef CONFIG_USE_NOR - /* Set the GPIO direction as output */ - clrbits_le32((u32 *)GPIO_BANK0_REG_DIR_ADDR, (0x01 << 11)); - - /* Set the output as low */ - writel(0x01 << 11, GPIO_BANK0_REG_CLR_ADDR); -#endif - -#ifdef CONFIG_DAVINCI_MMC - /* Set the GPIO direction as output */ - clrbits_le32((u32 *)GPIO_BANK0_REG_DIR_ADDR, (0x01 << 11)); - - /* Set the output as high */ - writel(0x01 << 11, GPIO_BANK0_REG_SET_ADDR); -#endif - -#ifdef CONFIG_DRIVER_TI_EMAC - davinci_emac_mii_mode_sel(HAS_RMII); -#endif /* CONFIG_DRIVER_TI_EMAC */ - - /* 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_DRIVER_TI_EMAC - -#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII -/** - * rmii_hw_init - * - * DA850/OMAP-L138 EVM can interface to a daughter card for - * additional features. This card has an I2C GPIO Expander TCA6416 - * to select the required functions like camera, RMII Ethernet, - * character LCD, video. - * - * Initialization of the expander involves configuring the - * polarity and direction of the ports. P07-P05 are used here. - * These ports are connected to a Mux chip which enables only one - * functionality at a time. - * - * For RMII phy to respond, the MII MDIO clock has to be disabled - * since both the PHY devices have address as zero. The MII MDIO - * clock is controlled via GPIO2[6]. - * - * This code is valid for Beta version of the hardware - */ -int rmii_hw_init(void) -{ - const struct pinmux_config gpio_pins[] = { - { pinmux(6), 8, 1 } - }; - u_int8_t buf[2]; - unsigned int temp; - int ret; - - /* PinMux for GPIO */ - if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0) - return 1; - - /* I2C Exapnder configuration */ - /* Set polarity to non-inverted */ - buf[0] = 0x0; - buf[1] = 0x0; - ret = i2c_write(CONFIG_SYS_I2C_EXPANDER_ADDR, 4, 1, buf, 2); - if (ret) { - printf("\nExpander @ 0x%02x write FAILED!!!\n", - CONFIG_SYS_I2C_EXPANDER_ADDR); - return ret; - } - - /* Configure P07-P05 as outputs */ - buf[0] = 0x1f; - buf[1] = 0xff; - ret = i2c_write(CONFIG_SYS_I2C_EXPANDER_ADDR, 6, 1, buf, 2); - if (ret) { - printf("\nExpander @ 0x%02x write FAILED!!!\n", - CONFIG_SYS_I2C_EXPANDER_ADDR); - } - - /* For Ethernet RMII selection - * P07(SelA)=0 - * P06(SelB)=1 - * P05(SelC)=1 - */ - if (i2c_read(CONFIG_SYS_I2C_EXPANDER_ADDR, 2, 1, buf, 1)) { - printf("\nExpander @ 0x%02x read FAILED!!!\n", - CONFIG_SYS_I2C_EXPANDER_ADDR); - } - - buf[0] &= 0x1f; - buf[0] |= (0 << 7) | (1 << 6) | (1 << 5); - if (i2c_write(CONFIG_SYS_I2C_EXPANDER_ADDR, 2, 1, buf, 1)) { - printf("\nExpander @ 0x%02x write FAILED!!!\n", - CONFIG_SYS_I2C_EXPANDER_ADDR); - } - - /* Set the output as high */ - temp = REG(GPIO_BANK2_REG_SET_ADDR); - temp |= (0x01 << 6); - REG(GPIO_BANK2_REG_SET_ADDR) = temp; - - /* Set the GPIO direction as output */ - temp = REG(GPIO_BANK2_REG_DIR_ADDR); - temp &= ~(0x01 << 6); - REG(GPIO_BANK2_REG_DIR_ADDR) = temp; - - return 0; -} -#endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */ - -/* - * Initializes on-board ethernet controllers. - */ -int board_eth_init(bd_t *bis) -{ -#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII - /* Select RMII fucntion through the expander */ - if (rmii_hw_init()) - printf("RMII hardware init failed!!!\n"); -#endif - if (!davinci_emac_initialize()) { - printf("Error: Ethernet init failed!\n"); - return -1; - } - - return 0; -} -#endif /* CONFIG_DRIVER_TI_EMAC */ |