Unified codebase for TX28, TX48, TX51, TX53

[karo-tx-uboot.git] / board / freescale / mx6qsabrelite / mx6qsabrelite.c

diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
index fda3e41a030ee56e2fc844c72131d5a1dcf2a52a..29cbfed120b4f092701dcecd60dbea87bea15fd5 100644 (file)
--- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c
+++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
@@ -25,6 +25,7 @@
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/mx6x_pins.h>
 #include <asm/arch/iomux-v3.h>
+#include <asm/arch/clock.h>
 #include <asm/errno.h>
 #include <asm/gpio.h>
 #include <mmc.h>
@@ -50,6 +51,10 @@ DECLARE_GLOBAL_DATA_PTR;
        PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |             \
        PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
 
+#define BUTTON_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |           \
+       PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED   |             \
+       PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
+
 int dram_init(void)
 {
        gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -122,6 +127,22 @@ iomux_v3_cfg_t enet_pads2[] = {
        MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL     | MUX_PAD_CTRL(ENET_PAD_CTRL),
 };
 
+/* Button assignments for J14 */
+static iomux_v3_cfg_t button_pads[] = {
+       /* Menu */
+       MX6Q_PAD_NANDF_D1__GPIO_2_1     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+       /* Back */
+       MX6Q_PAD_NANDF_D2__GPIO_2_2     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+       /* Labelled Search (mapped to Power under Android) */
+       MX6Q_PAD_NANDF_D3__GPIO_2_3     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+       /* Home */
+       MX6Q_PAD_NANDF_D4__GPIO_2_4     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+       /* Volume Down */
+       MX6Q_PAD_GPIO_19__GPIO_4_5      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+       /* Volume Up */
+       MX6Q_PAD_GPIO_18__GPIO_7_13     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
+};
+
 static void setup_iomux_enet(void)
 {
        gpio_direction_output(87, 0);  /* GPIO 3-23 */
@@ -135,7 +156,7 @@ static void setup_iomux_enet(void)
 
        /* Need delay 10ms according to KSZ9021 spec */
        udelay(1000 * 10);
-       gpio_direction_output(87, 1);  /* GPIO 3-23 */
+       gpio_set_value(87, 1);  /* GPIO 3-23 */
 
        imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
 }
@@ -267,11 +288,44 @@ int board_eth_init(bd_t *bis)
        return 0;
 }
 
+static void setup_buttons(void)
+{
+       imx_iomux_v3_setup_multiple_pads(button_pads,
+                                        ARRAY_SIZE(button_pads));
+}
+
+#ifdef CONFIG_CMD_SATA
+
+int setup_sata(void)
+{
+       struct iomuxc_base_regs *const iomuxc_regs
+               = (struct iomuxc_base_regs *) IOMUXC_BASE_ADDR;
+       int ret = enable_sata_clock();
+       if (ret)
+               return ret;
+
+       clrsetbits_le32(&iomuxc_regs->gpr[13],
+                       IOMUXC_GPR13_SATA_MASK,
+                       IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
+                       |IOMUXC_GPR13_SATA_PHY_7_SATA2M
+                       |IOMUXC_GPR13_SATA_SPEED_3G
+                       |(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
+                       |IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
+                       |IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
+                       |IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
+                       |IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
+                       |IOMUXC_GPR13_SATA_PHY_1_SLOW);
+
+       return 0;
+}
+#endif
+
 int board_early_init_f(void)
 {
-       setup_iomux_uart();
+       setup_iomux_uart();
+       setup_buttons();
 
-       return 0;
+       return 0;
 }
 
 int board_init(void)
@@ -283,6 +337,10 @@ int board_init(void)
        setup_spi();
 #endif
 
+#ifdef CONFIG_CMD_SATA
+       setup_sata();
+#endif
+
        return 0;
 }
 
@@ -292,3 +350,94 @@ int checkboard(void)
 
        return 0;
 }
+
+struct button_key {
+       char const      *name;
+       unsigned        gpnum;
+       char            ident;
+};
+
+static struct button_key const buttons[] = {
+       {"back",        GPIO_NUMBER(2, 2),      'B'},
+       {"home",        GPIO_NUMBER(2, 4),      'H'},
+       {"menu",        GPIO_NUMBER(2, 1),      'M'},
+       {"search",      GPIO_NUMBER(2, 3),      'S'},
+       {"volup",       GPIO_NUMBER(7, 13),     'V'},
+       {"voldown",     GPIO_NUMBER(4, 5),      'v'},
+};
+
+/*
+ * generate a null-terminated string containing the buttons pressed
+ * returns number of keys pressed
+ */
+static int read_keys(char *buf)
+{
+       int i, numpressed = 0;
+       for (i = 0; i < ARRAY_SIZE(buttons); i++) {
+               if (!gpio_get_value(buttons[i].gpnum))
+                       buf[numpressed++] = buttons[i].ident;
+       }
+       buf[numpressed] = '\0';
+       return numpressed;
+}
+
+static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       char envvalue[ARRAY_SIZE(buttons)+1];
+       int numpressed = read_keys(envvalue);
+       setenv("keybd", envvalue);
+       return numpressed == 0;
+}
+
+U_BOOT_CMD(
+       kbd, 1, 1, do_kbd,
+       "Tests for keypresses, sets 'keybd' environment variable",
+       "Returns 0 (true) to shell if key is pressed."
+);
+
+#ifdef CONFIG_PREBOOT
+static char const kbd_magic_prefix[] = "key_magic";
+static char const kbd_command_prefix[] = "key_cmd";
+
+static void preboot_keys(void)
+{
+       int numpressed;
+       char keypress[ARRAY_SIZE(buttons)+1];
+       numpressed = read_keys(keypress);
+       if (numpressed) {
+               char *kbd_magic_keys = getenv("magic_keys");
+               char *suffix;
+               /*
+                * loop over all magic keys
+                */
+               for (suffix = kbd_magic_keys; *suffix; ++suffix) {
+                       char *keys;
+                       char magic[sizeof(kbd_magic_prefix) + 1];
+                       sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
+                       keys = getenv(magic);
+                       if (keys) {
+                               if (!strcmp(keys, keypress))
+                                       break;
+                       }
+               }
+               if (*suffix) {
+                       char cmd_name[sizeof(kbd_command_prefix) + 1];
+                       char *cmd;
+                       sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
+                       cmd = getenv(cmd_name);
+                       if (cmd) {
+                               setenv("preboot", cmd);
+                               return;
+                       }
+               }
+       }
+}
+#endif
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_PREBOOT
+       preboot_keys();
+#endif
+       return 0;
+}