1 files changed, 494 insertions, 0 deletions
diff --git a/roms/u-boot/board/davinci/da8xxevm/da850evm.c b/roms/u-boot/board/davinci/da8xxevm/da850evm.c
new file mode 100644
index 00000000..85b48309
--- /dev/null
+++ b/roms/u-boot/board/davinci/da8xxevm/da850evm.c
@@ -0,0 +1,494 @@
+/*
+ * 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 */