]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - board/freescale/mx6qsabreauto/mx6qsabreauto.c
mx6qsabreauto: Add Port Expander reset
[karo-tx-uboot.git] / board / freescale / mx6qsabreauto / mx6qsabreauto.c
index fcd83dc59b97227d054b886de2b0e376db62e4cd..2a6e3a919225df42b68174e873e6767ef855c87a 100644 (file)
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/iomux.h>
-#include <asm/arch/mx6x_pins.h>
+#include <asm/arch/mx6q_pins.h>
 #include <asm/errno.h>
 #include <asm/gpio.h>
 #include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/boot_mode.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <miiphy.h>
 #include <netdev.h>
+#include <asm/arch/sys_proto.h>
+#include <i2c.h>
+
 DECLARE_GLOBAL_DATA_PTR;
 
-#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
-       PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
-       PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+#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 USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |            \
-       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 ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
-       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 PC MUX_PAD_CTRL(I2C_PAD_CTRL)
 
 int dram_init(void)
 {
@@ -51,27 +61,66 @@ int dram_init(void)
        return 0;
 }
 
-iomux_v3_cfg_t uart4_pads[] = {
-       MX6Q_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
-       MX6Q_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+iomux_v3_cfg_t const uart4_pads[] = {
+       MX6_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+       MX6_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const enet_pads[] = {
+       MX6_PAD_KEY_COL1__ENET_MDIO             | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_KEY_COL2__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_TXC__ENET_RGMII_TXC       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_TD0__ENET_RGMII_TD0       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_TD1__ENET_RGMII_TD1       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_TD2__ENET_RGMII_TD2       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_TD3__ENET_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__ENET_RGMII_RXC       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_RD0__ENET_RGMII_RD0       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_RD1__ENET_RGMII_RD1       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_RD2__ENET_RGMII_RD2       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_RD3__ENET_RGMII_RD3       | MUX_PAD_CTRL(ENET_PAD_CTRL),
+       MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+/* I2C2 PMIC, iPod, Tuner, Codec, Touch, HDMI EDID, MIPI CSI2 card */
+struct i2c_pads_info i2c_pad_info1 = {
+       .scl = {
+               .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC,
+               .gpio_mode = MX6_PAD_EIM_EB2__GPIO_2_30 | PC,
+               .gp = IMX_GPIO_NR(2, 30)
+       },
+       .sda = {
+               .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
+               .gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC,
+               .gp = IMX_GPIO_NR(4, 13)
+       }
+};
+
+/*
+ * I2C3 MLB, Port Expanders (A, B, C), Video ADC, Light Sensor,
+ * Compass Sensor, Accelerometer, Res Touch
+ */
+struct i2c_pads_info i2c_pad_info2 = {
+       .scl = {
+               .i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC,
+               .gpio_mode = MX6_PAD_GPIO_3__GPIO_1_3 | PC,
+               .gp = IMX_GPIO_NR(1, 3)
+       },
+       .sda = {
+               .i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
+               .gpio_mode = MX6_PAD_EIM_D18__GPIO_3_18 | PC,
+               .gp = IMX_GPIO_NR(3, 18)
+       }
+};
+
+iomux_v3_cfg_t const i2c3_pads[] = {
+       MX6_PAD_EIM_A24__GPIO_5_4               | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
-iomux_v3_cfg_t enet_pads[] = {
-       MX6Q_PAD_KEY_COL1__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_KEY_COL2__ENET_MDC             | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_TX_CTL__RGMII_TX_CTL     | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3      | MUX_PAD_CTRL(ENET_PAD_CTRL),
-       MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL     | MUX_PAD_CTRL(ENET_PAD_CTRL),
+iomux_v3_cfg_t const port_exp[] = {
+       MX6_PAD_SD2_DAT0__GPIO_1_15             | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
 static void setup_iomux_enet(void)
@@ -79,19 +128,19 @@ static void setup_iomux_enet(void)
        imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
 }
 
-iomux_v3_cfg_t usdhc3_pads[] = {
-       MX6Q_PAD_SD3_CLK__USDHC3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_CMD__USDHC3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT0__USDHC3_DAT0  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT1__USDHC3_DAT1  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT2__USDHC3_DAT2  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT3__USDHC3_DAT3  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT4__USDHC3_DAT4  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT5__USDHC3_DAT5  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT6__USDHC3_DAT6  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_SD3_DAT7__USDHC3_DAT7  | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_GPIO_18__USDHC3_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-       MX6Q_PAD_NANDF_CS2__GPIO_6_15   | MUX_PAD_CTRL(NO_PAD_CTRL),
+iomux_v3_cfg_t const usdhc3_pads[] = {
+       MX6_PAD_SD3_CLK__USDHC3_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_CMD__USDHC3_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT0__USDHC3_DAT0   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT1__USDHC3_DAT1   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT2__USDHC3_DAT2   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT3__USDHC3_DAT3   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT4__USDHC3_DAT4   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT5__USDHC3_DAT5   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT6__USDHC3_DAT6   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_SD3_DAT7__USDHC3_DAT7   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_GPIO_18__USDHC3_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+       MX6_PAD_NANDF_CS2__GPIO_6_15   | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
 static void setup_iomux_uart(void)
@@ -114,6 +163,7 @@ int board_mmc_init(bd_t *bis)
 {
        imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 
+       usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
        return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 }
 #endif
@@ -164,9 +214,41 @@ int board_eth_init(bd_t *bis)
        return 0;
 }
 
+#define BOARD_REV_B  0x200
+#define BOARD_REV_A  0x100
+
+static int mx6sabre_rev(void)
+{
+       /*
+        * Get Board ID information from OCOTP_GP1[15:8]
+        * i.MX6Q ARD RevA: 0x01
+        * i.MX6Q ARD RevB: 0x02
+        */
+       struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+       struct fuse_bank *bank = &ocotp->bank[4];
+       struct fuse_bank4_regs *fuse =
+                       (struct fuse_bank4_regs *)bank->fuse_regs;
+       int reg = readl(&fuse->gp1);
+       int ret;
+
+       switch (reg >> 8 & 0x0F) {
+       case 0x02:
+               ret = BOARD_REV_B;
+               break;
+       case 0x01:
+       default:
+               ret = BOARD_REV_A;
+               break;
+       }
+
+       return ret;
+}
+
 u32 get_board_rev(void)
 {
-       return 0x63000;
+       int rev = mx6sabre_rev();
+
+       return (get_cpu_rev() & ~(0xF << 8)) | rev;
 }
 
 int board_early_init_f(void)
@@ -181,12 +263,52 @@ int board_init(void)
        /* address of boot parameters */
        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
+       /* I2C 2 and 3 setup - I2C 3 hw mux with EIM */
+       setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+       /* I2C 3 Steer */
+       gpio_direction_output(IMX_GPIO_NR(5, 4), 1);
+       imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
+       setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+
+       gpio_direction_output(IMX_GPIO_NR(1, 15), 1);
+       imx_iomux_v3_setup_multiple_pads(port_exp, ARRAY_SIZE(port_exp));
+
+       return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+       /* 4 bit bus width */
+       {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+       {NULL,   0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+       add_board_boot_modes(board_boot_modes);
+#endif
+
        return 0;
 }
 
 int checkboard(void)
 {
-       puts("Board: MX6Q-Sabreauto\n");
+       int rev = mx6sabre_rev();
+       char *revname;
+
+       switch (rev) {
+       case BOARD_REV_B:
+               revname = "B";
+               break;
+       case BOARD_REV_A:
+       default:
+               revname = "A";
+               break;
+       }
+
+       printf("Board: MX6Q-Sabreauto rev%s\n", revname);
 
        return 0;
 }