Dear Eric Nelson, > Uses the 'magic_keys' idiom as described in doc/README.kbd: > http://lists.denx.de/pipermail/u-boot/2012-April/122502.html
If this is a V2 of a patch, please send is as "in-reply-to" and descibe the changes below (at spot marked V2 (and V3 etc))... Also, change the keywork "PATCH" in teh subject to teh "PATCH V2" etc ;-) > > Signed-off-by: Eric Nelson <eric.nel...@boundarydevices.com> > Acked-by: Marek Vasut <ma...@denx.de> > --- V2: <changes> This is just a nitpick though (and I got about similar scolding in the LAKML today, so don't let it bother you ;-) ), thanks for your work ;-) > board/freescale/mx6qsabrelite/mx6qsabrelite.c | 122 > ++++++++++++++++++++++++- include/configs/mx6qsabrelite.h | > 3 + > 2 files changed, 123 insertions(+), 2 deletions(-) > > diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c > b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index db5e775..f63cef7 > 100644 > --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c > +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c > @@ -52,6 +52,10 @@ 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); > @@ -124,6 +128,22 @@ 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 */ > @@ -295,11 +315,18 @@ int setup_sata(void) > } > #endif > > +static void setup_buttons(void) > +{ > + imx_iomux_v3_setup_multiple_pads(button_pads, > + ARRAY_SIZE(button_pads)); > +} > + > int board_early_init_f(void) > { > - setup_iomux_uart(); > + setup_iomux_uart(); > + setup_buttons(); > > - return 0; > + return 0; > } > > int board_init(void) > @@ -324,3 +351,94 @@ 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; > +} > diff --git a/include/configs/mx6qsabrelite.h > b/include/configs/mx6qsabrelite.h index 50b5c31..c0511c7 100644 > --- a/include/configs/mx6qsabrelite.h > +++ b/include/configs/mx6qsabrelite.h > @@ -42,6 +42,7 @@ > > #define CONFIG_ARCH_CPU_INIT > #define CONFIG_BOARD_EARLY_INIT_F > +#define CONFIG_MISC_INIT_R > #define CONFIG_MXC_GPIO > > #define CONFIG_MXC_UART > @@ -123,6 +124,8 @@ > > #define CONFIG_BOOTDELAY 3 > > +#define CONFIG_PREBOOT "" > + > #define CONFIG_LOADADDR 0x10800000 > #define CONFIG_SYS_TEXT_BASE 0x17800000 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot