--- /dev/null
+/*
+ * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ * Based on:
+ * U-Boot:board/davinci/da8xxevm/da850evm.c
+ *
+ * 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 <asm/gpio.h>
+#include <hwconfig.h>
+#include <bootstage.h>
+
+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 */
+
+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();
+ return 0;
+}
+
+static const struct pinmux_config gpio_pins[] = {
+ /* GP7[14] selects bootmode*/
+ { pinmux(16), 8, 3 }, /* GP7[14] */
+};
+
+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
+ PINMUX_ITEM(uart2_pins_txrx),
+ PINMUX_ITEM(uart2_pins_rtscts),
+ PINMUX_ITEM(uart0_pins_txrx),
+ PINMUX_ITEM(uart0_pins_rtscts),
+#ifdef CONFIG_NAND_DAVINCI
+ PINMUX_ITEM(emifa_pins_cs3),
+ PINMUX_ITEM(emifa_pins_nand),
+#endif
+ PINMUX_ITEM(gpio_pins),
+};
+
+const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
+
+const struct lpsc_resource lpsc[] = {
+ { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
+ { DAVINCI_LPSC_EMAC }, /* image download */
+ { DAVINCI_LPSC_UART2 }, /* console */
+ { DAVINCI_LPSC_UART0 }, /* console */
+ { DAVINCI_LPSC_GPIO },
+};
+
+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
+
+ /* 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_UART0),
+ &davinci_syscfg_regs->suspsrc);
+
+ /* configure pinmux settings */
+ if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
+ return 1;
+
+#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),
+#if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
+ &davinci_uart0_ctrl_regs->pwremu_mgmt);
+#else
+ &davinci_uart2_ctrl_regs->pwremu_mgmt);
+#endif
+ 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 */
+
+static int init_led(int gpio, char *name, int val)
+{
+ int ret;
+
+ ret = gpio_request(gpio, name);
+ if (ret)
+ return -1;
+ ret = gpio_direction_output(gpio, val);
+ if (ret)
+ return -1;
+
+ return gpio;
+}
+
+#define LED_ON 0
+#define LED_OFF 1
+
+#if !defined(CONFIG_SPL_BUILD)
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+void show_boot_progress(int status)
+{
+ static int red;
+ static int green;
+
+ if (red == 0)
+ red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
+ if (red != CONFIG_IPAM390_GPIO_LED_RED)
+ return;
+ if (green == 0)
+ green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
+ LED_OFF);
+ if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
+ return;
+
+ switch (status) {
+ case BOOTSTAGE_ID_RUN_OS:
+ /*
+ * set normal state
+ * LED Red : on
+ * LED green: off
+ */
+ gpio_set_value(red, LED_ON);
+ gpio_set_value(green, LED_OFF);
+ break;
+ case BOOTSTAGE_ID_MAIN_LOOP:
+ /*
+ * U-Boot operation
+ * LED Red : on
+ * LED green: on
+ */
+ gpio_set_value(red, LED_ON);
+ gpio_set_value(green, LED_ON);
+ break;
+ }
+}
+#endif
+#endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+ int ret;
+ int bootmode = 0;
+
+ /*
+ * GP7[14] selects bootmode:
+ * 1: boot linux
+ * 0: boot u-boot
+ * if error accessing gpio boot U-Boot
+ *
+ * SPL bootmode
+ * 0: boot linux
+ * 1: boot u-boot
+ */
+ ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
+ if (ret)
+ bootmode = 1;
+ if (!bootmode) {
+ ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
+ if (ret)
+ bootmode = 1;
+ }
+ if (!bootmode)
+ ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
+ if (!bootmode)
+ if (ret == 0)
+ bootmode = 1;
+ /*
+ * LED red : on
+ * LED green: off
+ */
+ init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
+ init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
+ return bootmode;
+}
+#endif
Code Review / kvmfornfv.git / blobdiff