Merge branch 'master' of git://git.denx.de/u-boot-arm

1 files changed, 226 insertions, 0 deletions

diff --git a/board/gumstix/pepper/board.c b/board/gumstix/pepper/board.c
new file mode 100644
index 0000000..75aac49
--- /dev/null
+++ b/board/gumstix/pepper/board.c
@@ -0,0 +1,226 @@
+/*
+ * Board functions for Gumstix Pepper and AM335x-based boards
+ *
+ * Copyright (C) 2014, Gumstix, Incorporated - http://www.gumstix.com/
+ * Based on board/ti/am335x/board.c from Texas Instruments, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <spl.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/omap.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include <power/tps65217.h>
+#include <environment.h>
+#include <watchdog.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+static const struct ddr_data ddr2_data = {
+	.datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
+			  (MT47H128M16RT25E_RD_DQS<<20) |
+			  (MT47H128M16RT25E_RD_DQS<<10) |
+			  (MT47H128M16RT25E_RD_DQS<<0)),
+	.datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) |
+			  (MT47H128M16RT25E_WR_DQS<<20) |
+			  (MT47H128M16RT25E_WR_DQS<<10) |
+			  (MT47H128M16RT25E_WR_DQS<<0)),
+	.datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) |
+			 (MT47H128M16RT25E_PHY_WRLVL<<20) |
+			 (MT47H128M16RT25E_PHY_WRLVL<<10) |
+			 (MT47H128M16RT25E_PHY_WRLVL<<0)),
+	.datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) |
+			 (MT47H128M16RT25E_PHY_GATELVL<<20) |
+			 (MT47H128M16RT25E_PHY_GATELVL<<10) |
+			 (MT47H128M16RT25E_PHY_GATELVL<<0)),
+	.datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) |
+			  (MT47H128M16RT25E_PHY_FIFO_WE<<20) |
+			  (MT47H128M16RT25E_PHY_FIFO_WE<<10) |
+			  (MT47H128M16RT25E_PHY_FIFO_WE<<0)),
+	.datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) |
+			  (MT47H128M16RT25E_PHY_WR_DATA<<20) |
+			  (MT47H128M16RT25E_PHY_WR_DATA<<10) |
+			  (MT47H128M16RT25E_PHY_WR_DATA<<0)),
+};
+
+static const struct cmd_control ddr2_cmd_ctrl_data = {
+	.cmd0csratio = MT47H128M16RT25E_RATIO,
+	.cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
+
+	.cmd1csratio = MT47H128M16RT25E_RATIO,
+	.cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
+
+	.cmd2csratio = MT47H128M16RT25E_RATIO,
+	.cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
+};
+
+static const struct emif_regs ddr2_emif_reg_data = {
+	.sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
+	.ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
+	.sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
+	.sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
+	.sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
+	.emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
+};
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+	/* break into full u-boot on 'c' */
+	return serial_tstc() && serial_getc() == 'c';
+}
+#endif
+
+#define OSC	(V_OSCK/1000000)
+const struct dpll_params dpll_ddr = {266, OSC-1, 1, -1, -1, -1, -1};
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+	return &dpll_ddr;
+}
+
+void set_uart_mux_conf(void)
+{
+	enable_uart0_pin_mux();
+}
+
+void set_mux_conf_regs(void)
+{
+	enable_board_pin_mux();
+}
+
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.cm1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.cm2ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.dt0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.dt1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+};
+
+void sdram_init(void)
+{
+	config_ddr(266, &ioregs, &ddr2_data,
+		   &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
+}
+#endif
+
+int board_init(void)
+{
+#if defined(CONFIG_HW_WATCHDOG)
+	hw_watchdog_init();
+#endif
+
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+	gpmc_init();
+
+	return 0;
+}
+
+#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+	(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+static void cpsw_control(int enabled)
+{
+	/* VTP can be added here */
+
+	return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+	{
+		.slave_reg_ofs	= 0x208,
+		.sliver_reg_ofs	= 0xd80,
+		.phy_addr	= 0,
+		.phy_if		= PHY_INTERFACE_MODE_RGMII,
+	},
+};
+
+static struct cpsw_platform_data cpsw_data = {
+	.mdio_base		= CPSW_MDIO_BASE,
+	.cpsw_base		= CPSW_BASE,
+	.mdio_div		= 0xff,
+	.channels		= 8,
+	.cpdma_reg_ofs		= 0x800,
+	.slaves			= 1,
+	.slave_data		= cpsw_slaves,
+	.ale_reg_ofs		= 0xd00,
+	.ale_entries		= 1024,
+	.host_port_reg_ofs	= 0x108,
+	.hw_stats_reg_ofs	= 0x900,
+	.bd_ram_ofs		= 0x2000,
+	.mac_control		= (1 << 5),
+	.control		= cpsw_control,
+	.host_port_num		= 0,
+	.version		= CPSW_CTRL_VERSION_2,
+};
+
+int board_eth_init(bd_t *bis)
+{
+	int rv, n = 0;
+	uint8_t mac_addr[6];
+	uint32_t mac_hi, mac_lo;
+	const char *devname;
+
+	if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
+		/* try reading mac address from efuse */
+		mac_lo = readl(&cdev->macid0l);
+		mac_hi = readl(&cdev->macid0h);
+		mac_addr[0] = mac_hi & 0xFF;
+		mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+		mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+		mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+		mac_addr[4] = mac_lo & 0xFF;
+		mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+		if (is_valid_ether_addr(mac_addr))
+			eth_setenv_enetaddr("ethaddr", mac_addr);
+	}
+
+	writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
+
+	rv = cpsw_register(&cpsw_data);
+	if (rv < 0)
+		printf("Error %d registering CPSW switch\n", rv);
+	else
+		n += rv;
+
+	/*
+	 *
+	 * CPSW RGMII Internal Delay Mode is not supported in all PVT
+	 * operating points.  So we must set the TX clock delay feature
+	 * in the KSZ9021 PHY.  Since we only support a single ethernet
+	 * device in U-Boot, we only do this for the current instance.
+	 */
+	devname = miiphy_get_current_dev();
+	/* max rx/tx clock delay, min rx/tx control delay */
+	miiphy_write(devname, 0x0, 0x0b, 0x8104);
+	miiphy_write(devname, 0x0, 0xc, 0xa0a0);
+
+	/* min rx data delay */
+	miiphy_write(devname, 0x0, 0x0b, 0x8105);
+	miiphy_write(devname, 0x0, 0x0c, 0x0000);
+
+	/* min tx data delay */
+	miiphy_write(devname, 0x0, 0x0b, 0x8106);
+	miiphy_write(devname, 0x0, 0x0c, 0x0000);
+
+	return n;
+}
+#endif