cm-t54: add cm-t54 board support

Add cm-t54 board directory, config file. Enable build.

Basic support includes:

Serial console
SD/MMC
eMMC
USB
Ethernet

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>

1 files changed, 177 insertions, 0 deletions

diff --git a/board/compulab/cm_t54/cm_t54.c b/board/compulab/cm_t54/cm_t54.c
new file mode 100644
index 0000000000..e0df47e72b
--- /dev/null
+++ b/board/compulab/cm_t54/cm_t54.c
@@ -0,0 +1,177 @@
+/*
+ * Board functions for Compulab CM-T54 board
+ *
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * Author: Dmitry Lifshitz <lifshitz@compulab.co.il>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <usb.h>
+#include <mmc.h>
+#include <palmas.h>
+
+#include <asm/gpio.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/ehci.h>
+#include <asm/ehci-omap.h>
+
+#define DIE_ID_REG_BASE		(OMAP54XX_L4_CORE_BASE + 0x2000)
+#define DIE_ID_REG_OFFSET	0x200
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if !defined(CONFIG_SPL_BUILD)
+inline void set_muxconf_regs_essential(void){};
+#endif
+
+const struct omap_sysinfo sysinfo = {
+	"Board: CM-T54\n"
+};
+
+/*
+ * Routine: board_init
+ * Description: hardware init.
+ */
+int board_init(void)
+{
+	gd->bd->bi_boot_params = (CONFIG_SYS_SDRAM_BASE + 0x100); /* boot param addr */
+
+	return 0;
+}
+
+/*
+ * Routine: cm_t54_palmas_regulator_set
+ * Description:  select voltage and turn on/off Palmas PMIC regulator.
+ */
+static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval)
+{
+	int err;
+
+	/* Setup voltage */
+	err = palmas_i2c_write_u8(TWL603X_CHIP_P1, vreg, vval);
+	if (err) {
+		printf("cm_t54: could not set regulator 0x%02x voltage : %d\n",
+		       vreg, err);
+		return err;
+	}
+
+	/* Turn on/off regulator */
+	err = palmas_i2c_write_u8(TWL603X_CHIP_P1, creg, cval);
+	if (err) {
+		printf("cm_t54: could not turn on/off regulator 0x%02x : %d\n",
+		       creg, err);
+		return err;
+	}
+
+	return 0;
+}
+
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
+#define SB_T54_CD_GPIO 228
+#define SB_T54_WP_GPIO 229
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return !gpio_get_value(SB_T54_CD_GPIO);
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	int ret0, ret1;
+
+	ret0 = omap_mmc_init(0, 0, 0, -1, SB_T54_WP_GPIO);
+	if (ret0)
+		printf("cm_t54: failed to initialize mmc0\n");
+
+	ret1 = omap_mmc_init(1, 0, 0, -1, -1);
+	if (ret1)
+		printf("cm_t54: failed to initialize mmc1\n");
+
+	if (ret0 && ret1)
+		return -1;
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_USB_EHCI
+static struct omap_usbhs_board_data usbhs_bdata = {
+	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
+	.port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
+	.port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
+};
+
+static void setup_host_clocks(bool enable)
+{
+	int usbhost_clk = OPTFCLKEN_HSIC60M_P3_CLK |
+			  OPTFCLKEN_HSIC480M_P3_CLK |
+			  OPTFCLKEN_HSIC60M_P2_CLK |
+			  OPTFCLKEN_HSIC480M_P2_CLK |
+			  OPTFCLKEN_UTMI_P3_CLK |
+			  OPTFCLKEN_UTMI_P2_CLK;
+
+	int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE |
+			 OPTFCLKEN_USB_CH2_CLK_ENABLE;
+
+	int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK;
+
+	if (enable) {
+		/* Enable port 2 and 3 clocks*/
+		setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
+		/* Enable port 2 and 3 usb host ports tll clocks*/
+		setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
+		/* Request FREF_XTAL_CLK clock for HSIC USB Hub */
+		setbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
+	} else {
+		clrbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
+		clrbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
+		clrbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
+	}
+}
+
+int ehci_hcd_init(int index, enum usb_init_type init,
+		struct ehci_hccr **hccr, struct ehci_hcor **hcor)
+{
+	int ret;
+
+	/* VCC_3V3_ETH */
+	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL,
+				    SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO);
+
+	setup_host_clocks(true);
+
+	ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
+	if (ret < 0)
+		printf("cm_t54: Failed to initialize ehci : %d\n", ret);
+
+	return ret;
+}
+
+int ehci_hcd_stop(void)
+{
+	int ret = omap_ehci_hcd_stop();
+
+	setup_host_clocks(false);
+
+	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF,
+				    SMPS9_CTRL, SMPS_MODE_SLP_AUTO);
+
+	return ret;
+}
+
+void usb_hub_reset_devices(int port)
+{
+	/* The LAN9730 needs to be reset after the port power has been set. */
+	if (port == 3) {
+		gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
+		udelay(10);
+		gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
+	}
+}
+#endif
+