| /* |
| * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ |
| * |
| * Based on da850evm.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/ti-common/davinci_nand.h> |
| #include <asm/io.h> |
| #include <linux/errno.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; |
| |
| #define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) |
| |
| #ifdef CONFIG_DAVINCI_MMC |
| /* MMC0 pin muxer settings */ |
| const struct pinmux_config mmc0_pins[] = { |
| /* GP0[11] is required for SD to work on Rev 3 EVMs */ |
| { pinmux(0), 8, 4 }, /* GP0[11] */ |
| { pinmux(10), 2, 0 }, /* MMCSD0_CLK */ |
| { pinmux(10), 2, 1 }, /* MMCSD0_CMD */ |
| { pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */ |
| { pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */ |
| { pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */ |
| { pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */ |
| /* LCDK supports only 4-bit mode, remaining pins are not configured */ |
| }; |
| #endif |
| |
| /* UART pin muxer settings */ |
| static const struct pinmux_config uart_pins[] = { |
| { pinmux(0), 4, 6 }, |
| { pinmux(0), 4, 7 }, |
| { pinmux(4), 2, 4 }, |
| { pinmux(4), 2, 5 } |
| }; |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC |
| static const struct pinmux_config emac_pins[] = { |
| { pinmux(2), 8, 1 }, |
| { pinmux(2), 8, 2 }, |
| { pinmux(2), 8, 3 }, |
| { pinmux(2), 8, 4 }, |
| { pinmux(2), 8, 5 }, |
| { pinmux(2), 8, 6 }, |
| { pinmux(2), 8, 7 }, |
| { pinmux(3), 8, 0 }, |
| { pinmux(3), 8, 1 }, |
| { pinmux(3), 8, 2 }, |
| { pinmux(3), 8, 3 }, |
| { pinmux(3), 8, 4 }, |
| { pinmux(3), 8, 5 }, |
| { pinmux(3), 8, 6 }, |
| { pinmux(3), 8, 7 }, |
| { pinmux(4), 8, 0 }, |
| { pinmux(4), 8, 1 } |
| }; |
| #endif /* CONFIG_DRIVER_TI_EMAC */ |
| |
| /* I2C pin muxer settings */ |
| static const struct pinmux_config i2c_pins[] = { |
| { pinmux(4), 2, 2 }, |
| { pinmux(4), 2, 3 } |
| }; |
| |
| #ifdef CONFIG_NAND_DAVINCI |
| const struct pinmux_config nand_pins[] = { |
| { pinmux(7), 1, 1 }, |
| { pinmux(7), 1, 2 }, |
| { pinmux(7), 1, 4 }, |
| { pinmux(7), 1, 5 }, |
| { pinmux(8), 1, 0 }, |
| { pinmux(8), 1, 1 }, |
| { pinmux(8), 1, 2 }, |
| { pinmux(8), 1, 3 }, |
| { pinmux(8), 1, 4 }, |
| { pinmux(8), 1, 5 }, |
| { pinmux(8), 1, 6 }, |
| { pinmux(8), 1, 7 }, |
| { pinmux(9), 1, 0 }, |
| { pinmux(9), 1, 1 }, |
| { pinmux(9), 1, 2 }, |
| { pinmux(9), 1, 3 }, |
| { pinmux(9), 1, 4 }, |
| { pinmux(9), 1, 5 }, |
| { pinmux(9), 1, 6 }, |
| { pinmux(9), 1, 7 }, |
| { pinmux(12), 1, 5 }, |
| { pinmux(12), 1, 6 } |
| }; |
| |
| #endif |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII |
| #define HAS_RMII 1 |
| #else |
| #define HAS_RMII 0 |
| #endif |
| |
| const struct pinmux_resource pinmuxes[] = { |
| PINMUX_ITEM(uart_pins), |
| PINMUX_ITEM(i2c_pins), |
| #ifdef CONFIG_NAND_DAVINCI |
| PINMUX_ITEM(nand_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 456000000 |
| #endif |
| |
| /* |
| * 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) |
| { |
| return 0; |
| } |
| |
| 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 |
| |
| /* arch number of the board */ |
| gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_LCDK; |
| |
| /* 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_NAND_DAVINCI |
| /* |
| * NAND CS setup - cycle counts based on da850evm NAND timings in the |
| * Linux kernel @ 25MHz EMIFA |
| */ |
| writel((DAVINCI_ABCR_WSETUP(15) | |
| DAVINCI_ABCR_WSTROBE(63) | |
| DAVINCI_ABCR_WHOLD(7) | |
| DAVINCI_ABCR_RSETUP(15) | |
| DAVINCI_ABCR_RSTROBE(63) | |
| DAVINCI_ABCR_RHOLD(7) | |
| DAVINCI_ABCR_TA(3) | |
| DAVINCI_ABCR_ASIZE_16BIT), |
| &davinci_emif_regs->ab2cr); /* CS3 */ |
| #endif |
| |
| |
| #ifdef CONFIG_DAVINCI_MMC |
| if (davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins)) != 0) |
| return 1; |
| #endif |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC |
| if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) |
| return 1; |
| 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 |
| |
| /* |
| * Initializes on-board ethernet controllers. |
| */ |
| int board_eth_init(bd_t *bis) |
| { |
| if (!davinci_emac_initialize()) { |
| printf("Error: Ethernet init failed!\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| #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) |
| |
| static int get_mac_addr(u8 *addr) |
| { |
| /* Need to find a way to get MAC ADDRESS */ |
| return 0; |
| } |
| |
| 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; |
| |
| /* if the device is ARM only, return */ |
| if ((REG(CHIP_REV_ID_REG) & 0x3f) == 0x10) |
| return; |
| |
| if (!strcmp(getenv("dspwake"), "no")) |
| return; |
| |
| *resetvect++ = 0x1E000; /* DSP Idle */ |
| /* clear out the next 10 words as NOP */ |
| memset(resetvect, 0, sizeof(unsigned) * 10); |
| |
| /* setup the DSP reset vector */ |
| REG(HOST1CFG) = DAVINCI_L3CBARAM_BASE; |
| |
| dsp_lpsc_on(1, DAVINCI_LPSC_GEM); |
| REG(PSC0_MDCTL + (15 * 4)) |= 0x100; |
| } |
| |
| #ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII |
| /** |
| * rmii_hw_init |
| * |
| */ |
| int rmii_hw_init(void) |
| { |
| return 0; |
| } |
| #endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */ |
| |
| int misc_init_r(void) |
| { |
| uint8_t tmp[20], addr[10]; |
| |
| |
| if (getenv("ethaddr") == NULL) { |
| /* Read Ethernet MAC address from EEPROM */ |
| if (dvevm_read_mac_address(addr)) { |
| /* Set Ethernet MAC address from EEPROM */ |
| davinci_sync_env_enetaddr(addr); |
| } else { |
| get_mac_addr(addr); |
| } |
| |
| if (is_multicast_ethaddr(addr) || is_zero_ethaddr(addr)) { |
| printf("Invalid MAC address read.\n"); |
| return -EINVAL; |
| } |
| sprintf((char *)tmp, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0], |
| addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| setenv("ethaddr", (char *)tmp); |
| } |
| #ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII |
| /* Select RMII fucntion through the expander */ |
| if (rmii_hw_init()) |
| printf("RMII hardware init failed!!!\n"); |
| #endif |
| |
| dspwake(); |
| |
| 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 |
