arm: mx6: add support for TBS2910 Matrix ARM miniPC

Add initial support for TBS2910 Matrix ARM miniPC.
Support includes MMC, Ethernet, UARTs, HDMI, USB, SATA, PCI, I2C, RTC.

Signed-off-by: Soeren Moch <smoch@web.de>

4 files changed, 434 insertions, 0 deletions

diff --git a/board/tbs/tbs2910/Kconfig b/board/tbs/tbs2910/Kconfig
new file mode 100644
index 0000000..c514e24
--- /dev/null
+++ b/board/tbs/tbs2910/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_TBS2910
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "tbs2910"
+
+config SYS_VENDOR
+	string
+	default "tbs"
+
+config SYS_SOC
+	string
+	default "mx6"
+
+config SYS_CONFIG_NAME
+	string
+	default "tbs2910"
+
+endif
diff --git a/board/tbs/tbs2910/MAINTAINERS b/board/tbs/tbs2910/MAINTAINERS
new file mode 100644
index 0000000..bf17655
--- /dev/null
+++ b/board/tbs/tbs2910/MAINTAINERS
@@ -0,0 +1,6 @@
+TBS2910 BOARD
+M:	Soeren Moch <smoch@web.de>
+S:	Maintained
+F:	board/tbs/tbs2910/
+F:	configs/tbs2910_defconfig
+F:	include/configs/tbs2910.h
diff --git a/board/tbs/tbs2910/Makefile b/board/tbs/tbs2910/Makefile
new file mode 100644
index 0000000..9d9eb87
--- /dev/null
+++ b/board/tbs/tbs2910/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2014 Soeren Moch <smoch@web.de>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := tbs2910.o
diff --git a/board/tbs/tbs2910/tbs2910.c b/board/tbs/tbs2910/tbs2910.c
new file mode 100644
index 0000000..daf8ff4
--- /dev/null
+++ b/board/tbs/tbs2910/tbs2910.c
@@ -0,0 +1,398 @@
+/*
+ * Copyright (C) 2014 Soeren Moch <smoch@web.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/sata.h>
+#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/video.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <i2c.h>
+DECLARE_GLOBAL_DATA_PTR;
+
+#define WEAK_PULLUP	(PAD_CTL_PUS_47K_UP |			\
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
+	PAD_CTL_SRE_SLOW)
+
+#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
+	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
+#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+#ifdef CONFIG_SYS_I2C
+/* I2C1, SGTL5000 */
+static struct i2c_pads_info i2c_pad_info0 = {
+	.scl = {
+		.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | I2C_PAD,
+		.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | I2C_PAD,
+		.gp = IMX_GPIO_NR(5, 27)
+	},
+	.sda = {
+		.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | I2C_PAD,
+		.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | I2C_PAD,
+		.gp = IMX_GPIO_NR(5, 26)
+	}
+};
+
+/* I2C2 HDMI */
+static struct i2c_pads_info i2c_pad_info1 = {
+	.scl = {
+		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | I2C_PAD,
+		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | I2C_PAD,
+		.gp = IMX_GPIO_NR(4, 12)
+	},
+	.sda = {
+		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
+		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
+		.gp = IMX_GPIO_NR(4, 13)
+	}
+};
+
+/* I2C3, CON11, DS1307, PCIe_SMB */
+static struct i2c_pads_info i2c_pad_info2 = {
+	.scl = {
+		.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | I2C_PAD,
+		.gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | I2C_PAD,
+		.gp = IMX_GPIO_NR(1, 3)
+	},
+	.sda = {
+		.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
+		.gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
+		.gp = IMX_GPIO_NR(1, 6)
+	}
+};
+#endif /* CONFIG_SYS_I2C */
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const uart2_pads[] = {
+	MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const enet_pads[] = {
+	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TXC__RGMII_TXC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD0__RGMII_TD0		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD1__RGMII_TD1		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD2__RGMII_TD2		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD3__RGMII_TD3		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RXC__RGMII_RXC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD0__RGMII_RD0		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD1__RGMII_RD1		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD2__RGMII_RD2		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD3__RGMII_RD3		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	/* AR8035 PHY Reset */
+	MX6_PAD_ENET_CRS_DV__GPIO1_IO25		| MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const pcie_pads[] = {
+	/* W_DISABLE# */
+	MX6_PAD_KEY_COL4__GPIO4_IO14 | MUX_PAD_CTRL(WEAK_PULLUP),
+	/* PERST# */
+	MX6_PAD_GPIO_17__GPIO7_IO12  | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+int dram_init(void)
+{
+	gd->ram_size = 2048ul * 1024 * 1024;
+	return 0;
+}
+
+static void setup_iomux_enet(void)
+{
+	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+	/* Reset AR8035 PHY */
+	gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
+	udelay(500);
+	gpio_set_value(IMX_GPIO_NR(1, 25), 1);
+}
+
+static void setup_pcie(void)
+{
+	imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
+}
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+	imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+static iomux_v3_cfg_t const usdhc2_pads[] = {
+	MX6_PAD_SD2_CLK__SD2_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_CMD__SD2_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT0__SD2_DATA0  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT1__SD2_DATA1  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT2__SD2_DATA2  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT3__SD2_DATA3  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+	MX6_PAD_SD3_CLK__SD3_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_CMD__SD3_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT0__SD3_DATA0  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT1__SD3_DATA1  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT2__SD3_DATA2  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT3__SD3_DATA3  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+static iomux_v3_cfg_t const usdhc4_pads[] = {
+	MX6_PAD_SD4_CLK__SD4_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_CMD__SD4_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static struct fsl_esdhc_cfg usdhc_cfg[3] = {
+	{USDHC2_BASE_ADDR},
+	{USDHC3_BASE_ADDR},
+	{USDHC4_BASE_ADDR},
+};
+
+#define USDHC2_CD_GPIO	IMX_GPIO_NR(2, 2)
+#define USDHC3_CD_GPIO	IMX_GPIO_NR(2, 0)
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret = 0;
+
+	switch (cfg->esdhc_base) {
+	case USDHC2_BASE_ADDR:
+		ret = !gpio_get_value(USDHC2_CD_GPIO);
+		break;
+	case USDHC3_BASE_ADDR:
+		ret = !gpio_get_value(USDHC3_CD_GPIO);
+		break;
+	case USDHC4_BASE_ADDR:
+		ret = 1; /* eMMC/uSDHC4 is always present */
+		break;
+	}
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	s32 status = 0;
+	int i;
+
+	/*
+	 * (U-boot device node)    (Physical Port)
+	 * mmc0                    SD2
+	 * mmc1                    SD3
+	 * mmc2                    eMMC
+	 */
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		switch (i) {
+		case 0:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+			gpio_direction_input(USDHC2_CD_GPIO);
+			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+			break;
+		case 1:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+			gpio_direction_input(USDHC3_CD_GPIO);
+			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+			break;
+		case 2:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+			usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+			break;
+		default:
+			printf("Warning: you configured more USDHC controllers"
+			       "(%d) then supported by the board (%d)\n",
+			       i + 1, CONFIG_SYS_FSL_USDHC_NUM);
+			return status;
+		}
+
+		status |= fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+	}
+	return status;
+}
+#endif /* CONFIG_FSL_ESDHC */
+
+#ifdef CONFIG_VIDEO_IPUV3
+static void do_enable_hdmi(struct display_info_t const *dev)
+{
+	imx_enable_hdmi_phy();
+}
+
+struct display_info_t const displays[] = {{
+	.bus	= -1,
+	.addr	= 0,
+	.pixfmt	= IPU_PIX_FMT_RGB24,
+	.detect	= detect_hdmi,
+	.enable	= do_enable_hdmi,
+	.mode	= {
+		.name           = "HDMI",
+		/* 1024x768@60Hz (VESA)*/
+		.refresh        = 60,
+		.xres           = 1024,
+		.yres           = 768,
+		.pixclock       = 15384,
+		.left_margin    = 160,
+		.right_margin   = 24,
+		.upper_margin   = 29,
+		.lower_margin   = 3,
+		.hsync_len      = 136,
+		.vsync_len      = 6,
+		.sync           = FB_SYNC_EXT,
+		.vmode          = FB_VMODE_NONINTERLACED
+} } };
+size_t display_count = ARRAY_SIZE(displays);
+
+static void setup_display(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+	int reg;
+	s32 timeout = 100000;
+
+	enable_ipu_clock();
+	imx_setup_hdmi();
+
+	/* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
+	reg = readl(&ccm->analog_pll_video);
+	reg |= BM_ANADIG_PLL_VIDEO_POWERDOWN;
+	writel(reg, &ccm->analog_pll_video);
+
+	reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
+	reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
+	reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
+	reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
+	writel(reg, &ccm->analog_pll_video);
+
+	writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
+	writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
+
+	reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
+	writel(reg, &ccm->analog_pll_video);
+
+	while (timeout--)
+		if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
+			break;
+	if (timeout < 0)
+		printf("Warning: video pll lock timeout!\n");
+
+	reg = readl(&ccm->analog_pll_video);
+	reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
+	reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
+	writel(reg, &ccm->analog_pll_video);
+
+	/* select video pll for ldb_di0_clk */
+	reg = readl(&ccm->cs2cdr);
+	reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK);
+	writel(reg, &ccm->cs2cdr);
+
+	/* select ldb_di0_clk / 7 for ldb_di0_ipu_clk */
+	reg = readl(&ccm->cscmr2);
+	reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
+	writel(reg, &ccm->cscmr2);
+
+	/* select ldb_di0_ipu_clk for ipu1_di0_clk -> 65MHz pixclock */
+	reg = readl(&ccm->chsccdr);
+	reg |= (CHSCCDR_CLK_SEL_LDB_DI0
+		<< MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
+	writel(reg, &ccm->chsccdr);
+}
+#endif /* CONFIG_VIDEO_IPUV3 */
+
+int board_eth_init(bd_t *bis)
+{
+	setup_iomux_enet();
+	setup_pcie();
+	return cpu_eth_init(bis);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+	/* 4 bit bus width */
+	{"sd2",	 MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+	{"sd3",	 MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+	/* 8 bit bus width */
+	{"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
+	{NULL,	 0},
+};
+#endif
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_VIDEO_IPUV3
+	setup_display();
+#endif
+#ifdef CONFIG_SYS_I2C
+	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
+	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+#endif
+#ifdef CONFIG_DWC_AHSATA
+	setup_sata();
+#endif
+#ifdef CONFIG_CMD_BMODE
+	add_board_boot_modes(board_boot_modes);
+#endif
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: TBS2910 Matrix ARM mini PC\n");
+	return 0;
+}