mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 19:26:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
336 lines
7.2 KiB
C
336 lines
7.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
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* Based on:
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* U-Boot:board/davinci/da8xxevm/da850evm.c
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*
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* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
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*
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* Based on da830evm.c. Original Copyrights follow:
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*
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* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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*/
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#include <common.h>
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#include <i2c.h>
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#include <net.h>
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#include <netdev.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <asm/arch/hardware.h>
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#include <asm/ti-common/davinci_nand.h>
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#include <asm/arch/emac_defs.h>
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#include <asm/arch/pinmux_defs.h>
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#include <asm/io.h>
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#include <asm/arch/davinci_misc.h>
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#include <linux/errno.h>
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#include <asm/gpio.h>
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#include <hwconfig.h>
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#include <bootstage.h>
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#include <asm/mach-types.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_DRIVER_TI_EMAC
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#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
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#define HAS_RMII 1
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#else
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#define HAS_RMII 0
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#endif
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#endif /* CONFIG_DRIVER_TI_EMAC */
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void dsp_lpsc_on(unsigned domain, unsigned int id)
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{
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dv_reg_p mdstat, mdctl, ptstat, ptcmd;
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struct davinci_psc_regs *psc_regs;
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psc_regs = davinci_psc0_regs;
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mdstat = &psc_regs->psc0.mdstat[id];
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mdctl = &psc_regs->psc0.mdctl[id];
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ptstat = &psc_regs->ptstat;
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ptcmd = &psc_regs->ptcmd;
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while (*ptstat & (0x1 << domain))
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;
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if ((*mdstat & 0x1f) == 0x03)
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return; /* Already on and enabled */
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*mdctl |= 0x03;
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*ptcmd = 0x1 << domain;
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while (*ptstat & (0x1 << domain))
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;
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while ((*mdstat & 0x1f) != 0x03)
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; /* Probably an overkill... */
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}
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static void dspwake(void)
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{
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unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
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u32 val;
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/* if the device is ARM only, return */
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if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10)
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return;
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if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL))
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return;
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*resetvect++ = 0x1E000; /* DSP Idle */
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/* clear out the next 10 words as NOP */
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memset(resetvect, 0, sizeof(unsigned) * 10);
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/* setup the DSP reset vector */
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writel(DAVINCI_L3CBARAM_BASE, HOST1CFG);
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dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
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val = readl(PSC0_MDCTL + (15 * 4));
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val |= 0x100;
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writel(val, (PSC0_MDCTL + (15 * 4)));
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}
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int misc_init_r(void)
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{
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dspwake();
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return 0;
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}
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static const struct pinmux_config gpio_pins[] = {
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/* GP7[14] selects bootmode*/
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{ pinmux(16), 8, 3 }, /* GP7[14] */
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};
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const struct pinmux_resource pinmuxes[] = {
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#ifdef CONFIG_DRIVER_TI_EMAC
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PINMUX_ITEM(emac_pins_mdio),
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#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
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PINMUX_ITEM(emac_pins_rmii),
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#else
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PINMUX_ITEM(emac_pins_mii),
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#endif
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#endif
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PINMUX_ITEM(uart2_pins_txrx),
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PINMUX_ITEM(uart2_pins_rtscts),
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PINMUX_ITEM(uart0_pins_txrx),
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PINMUX_ITEM(uart0_pins_rtscts),
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#ifdef CONFIG_NAND_DAVINCI
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PINMUX_ITEM(emifa_pins_cs3),
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PINMUX_ITEM(emifa_pins_nand),
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#endif
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PINMUX_ITEM(gpio_pins),
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};
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const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
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const struct lpsc_resource lpsc[] = {
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{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
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{ DAVINCI_LPSC_EMAC }, /* image download */
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{ DAVINCI_LPSC_UART2 }, /* console */
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{ DAVINCI_LPSC_UART0 }, /* console */
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{ DAVINCI_LPSC_GPIO },
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};
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const int lpsc_size = ARRAY_SIZE(lpsc);
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#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
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#define CONFIG_DA850_EVM_MAX_CPU_CLK 300000000
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#endif
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#define REV_AM18X_EVM 0x100
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/*
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* get_board_rev() - setup to pass kernel board revision information
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* Returns:
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* bit[0-3] Maximum cpu clock rate supported by onboard SoC
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* 0000b - 300 MHz
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* 0001b - 372 MHz
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* 0010b - 408 MHz
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* 0011b - 456 MHz
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*/
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u32 get_board_rev(void)
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{
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char *s;
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u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
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u32 rev = 0;
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s = env_get("maxcpuclk");
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if (s)
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maxcpuclk = simple_strtoul(s, NULL, 10);
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if (maxcpuclk >= 456000000)
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rev = 3;
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else if (maxcpuclk >= 408000000)
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rev = 2;
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else if (maxcpuclk >= 372000000)
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rev = 1;
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#ifdef CONFIG_DA850_AM18X_EVM
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rev |= REV_AM18X_EVM;
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#endif
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return rev;
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}
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int board_early_init_f(void)
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{
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/*
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* Power on required peripherals
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* ARM does not have access by default to PSC0 and PSC1
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* assuming here that the DSP bootloader has set the IOPU
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* such that PSC access is available to ARM
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*/
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if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
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return 1;
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return 0;
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}
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int board_init(void)
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{
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irq_init();
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/* arch number of the board */
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gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
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/* address of boot parameters */
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gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
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/* setup the SUSPSRC for ARM to control emulation suspend */
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writel(readl(&davinci_syscfg_regs->suspsrc) &
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~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
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DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
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DAVINCI_SYSCFG_SUSPSRC_UART0),
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&davinci_syscfg_regs->suspsrc);
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/* configure pinmux settings */
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if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
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return 1;
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#ifdef CONFIG_DRIVER_TI_EMAC
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davinci_emac_mii_mode_sel(HAS_RMII);
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#endif /* CONFIG_DRIVER_TI_EMAC */
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/* enable the console UART */
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writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
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DAVINCI_UART_PWREMU_MGMT_UTRST),
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#if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
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&davinci_uart0_ctrl_regs->pwremu_mgmt);
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#else
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&davinci_uart2_ctrl_regs->pwremu_mgmt);
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#endif
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return 0;
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}
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#ifdef CONFIG_DRIVER_TI_EMAC
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/*
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* Initializes on-board ethernet controllers.
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*/
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int board_eth_init(bd_t *bis)
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{
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if (!davinci_emac_initialize()) {
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printf("Error: Ethernet init failed!\n");
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return -1;
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}
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return 0;
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}
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#endif /* CONFIG_DRIVER_TI_EMAC */
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static int init_led(int gpio, char *name, int val)
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{
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int ret;
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ret = gpio_request(gpio, name);
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if (ret)
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return -1;
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ret = gpio_direction_output(gpio, val);
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if (ret)
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return -1;
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return gpio;
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}
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#define LED_ON 0
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#define LED_OFF 1
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#if !defined(CONFIG_SPL_BUILD)
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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void show_boot_progress(int status)
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{
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static int red;
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static int green;
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if (red == 0)
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red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
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if (red != CONFIG_IPAM390_GPIO_LED_RED)
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return;
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if (green == 0)
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green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
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LED_OFF);
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if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
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return;
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switch (status) {
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case BOOTSTAGE_ID_RUN_OS:
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/*
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* set normal state
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* LED Red : on
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* LED green: off
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*/
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gpio_set_value(red, LED_ON);
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gpio_set_value(green, LED_OFF);
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break;
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case BOOTSTAGE_ID_MAIN_LOOP:
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/*
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* U-Boot operation
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* LED Red : on
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* LED green: on
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*/
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gpio_set_value(red, LED_ON);
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gpio_set_value(green, LED_ON);
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break;
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}
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}
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#endif
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#endif
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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int ret;
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int bootmode = 0;
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/*
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* GP7[14] selects bootmode:
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* 1: boot linux
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* 0: boot u-boot
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* if error accessing gpio boot U-Boot
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*
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* SPL bootmode
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* 0: boot linux
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* 1: boot u-boot
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*/
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ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
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if (ret)
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bootmode = 1;
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if (!bootmode) {
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ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
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if (ret)
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bootmode = 1;
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}
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if (!bootmode)
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ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
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if (!bootmode)
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if (ret == 0)
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bootmode = 1;
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/*
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* LED red : on
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* LED green: off
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*/
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init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
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init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
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return bootmode;
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}
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#endif
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