X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=board%2Fti%2Fpanda%2Fpanda.c;h=e838ffd95476c8041e5e547607a93e4fb39b0da5;hb=8b485ba12b0defa0c4ed3559789250238f8331a8;hp=cab059863d34459326bfc2bbbeaf135dc0a8d373;hpb=1acba3345c6f707195d8f1cbac834436445279b3;p=karo-tx-uboot.git diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c index cab059863d..e838ffd954 100644 --- a/board/ti/panda/panda.c +++ b/board/ti/panda/panda.c @@ -3,28 +3,12 @@ * Texas Instruments Incorporated, * Steve Sakoman * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include -#include +#include #include #include @@ -37,6 +21,11 @@ #endif #define PANDA_ULPI_PHY_TYPE_GPIO 182 +#define PANDA_BOARD_ID_1_GPIO 101 +#define PANDA_ES_BOARD_ID_1_GPIO 48 +#define PANDA_BOARD_ID_2_GPIO 171 +#define PANDA_ES_BOARD_ID_3_GPIO 3 +#define PANDA_ES_BOARD_ID_4_GPIO 2 DECLARE_GLOBAL_DATA_PTR; @@ -66,6 +55,73 @@ int board_eth_init(bd_t *bis) return 0; } +/* +* Routine: get_board_revision +* Description: Detect if we are running on a panda revision A1-A6, +* or an ES panda board. This can be done by reading +* the level of GPIOs and checking the processor revisions. +* This should result in: +* Panda 4430: +* GPIO171, GPIO101, GPIO182: 0 1 1 => A1-A5 +* GPIO171, GPIO101, GPIO182: 1 0 1 => A6 +* Panda ES: +* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 0 1 1 => B1/B2 +* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 1 1 1 => B3 +*/ +int get_board_revision(void) +{ + int board_id0, board_id1, board_id2; + int board_id3, board_id4; + int board_id; + + int processor_rev = omap_revision(); + + /* Setup the mux for the common board ID pins (gpio 171 and 182) */ + writew((IEN | M3), (*ctrl)->control_padconf_core_base + UNIPRO_TX0); + writew((IEN | M3), (*ctrl)->control_padconf_core_base + FREF_CLK2_OUT); + + board_id0 = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO); + board_id2 = gpio_get_value(PANDA_BOARD_ID_2_GPIO); + + if ((processor_rev >= OMAP4460_ES1_0 && + processor_rev <= OMAP4460_ES1_1)) { + /* + * Setup the mux for the ES specific board ID pins (gpio 101, + * 2 and 3. + */ + writew((IEN | M3), (*ctrl)->control_padconf_core_base + + GPMC_A24); + writew((IEN | M3), (*ctrl)->control_padconf_core_base + + UNIPRO_RY0); + writew((IEN | M3), (*ctrl)->control_padconf_core_base + + UNIPRO_RX1); + + board_id1 = gpio_get_value(PANDA_ES_BOARD_ID_1_GPIO); + board_id3 = gpio_get_value(PANDA_ES_BOARD_ID_3_GPIO); + board_id4 = gpio_get_value(PANDA_ES_BOARD_ID_4_GPIO); + +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + setenv("board_name", strcat(CONFIG_SYS_BOARD, "-es")); +#endif + board_id = ((board_id4 << 4) | (board_id3 << 3) | + (board_id2 << 2) | (board_id1 << 1) | (board_id0)); + } else { + /* Setup the mux for the Ax specific board ID pins (gpio 101) */ + writew((IEN | M3), (*ctrl)->control_padconf_core_base + + FREF_CLK2_OUT); + + board_id1 = gpio_get_value(PANDA_BOARD_ID_1_GPIO); + board_id = ((board_id2 << 2) | (board_id1 << 1) | (board_id0)); + +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + if ((board_id >= 0x3) && (processor_rev == OMAP4430_ES2_3)) + setenv("board_name", strcat(CONFIG_SYS_BOARD, "-a4")); +#endif + } + + return board_id; +} + /** * @brief misc_init_r - Configure Panda board specific configurations * such as power configurations, ethernet initialization as phase2 of @@ -82,6 +138,8 @@ int misc_init_r(void) if (omap_revision() == OMAP4430_ES1_0) return 0; + get_board_revision(); + gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO); phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO); @@ -100,7 +158,7 @@ int misc_init_r(void) auxclk |= AUXCLK_ENABLE_MASK; writel(auxclk, &scrm->auxclk3); - } else { + } else { /* ULPI PHY supplied by auxclk1 derived from PER dpll */ debug("ULPI PHY supplied by auxclk1\n"); @@ -133,47 +191,51 @@ int misc_init_r(void) void set_muxconf_regs_essential(void) { - do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential, + do_set_mux((*ctrl)->control_padconf_core_base, + core_padconf_array_essential, sizeof(core_padconf_array_essential) / sizeof(struct pad_conf_entry)); - do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential, + do_set_mux((*ctrl)->control_padconf_wkup_base, + wkup_padconf_array_essential, sizeof(wkup_padconf_array_essential) / sizeof(struct pad_conf_entry)); if (omap_revision() >= OMAP4460_ES1_0) - do_set_mux(CONTROL_PADCONF_WKUP, - wkup_padconf_array_essential_4460, - sizeof(wkup_padconf_array_essential_4460) / - sizeof(struct pad_conf_entry)); + do_set_mux((*ctrl)->control_padconf_wkup_base, + wkup_padconf_array_essential_4460, + sizeof(wkup_padconf_array_essential_4460) / + sizeof(struct pad_conf_entry)); } void set_muxconf_regs_non_essential(void) { - do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential, + do_set_mux((*ctrl)->control_padconf_core_base, + core_padconf_array_non_essential, sizeof(core_padconf_array_non_essential) / sizeof(struct pad_conf_entry)); if (omap_revision() < OMAP4460_ES1_0) - do_set_mux(CONTROL_PADCONF_CORE, - core_padconf_array_non_essential_4430, - sizeof(core_padconf_array_non_essential_4430) / - sizeof(struct pad_conf_entry)); + do_set_mux((*ctrl)->control_padconf_core_base, + core_padconf_array_non_essential_4430, + sizeof(core_padconf_array_non_essential_4430) / + sizeof(struct pad_conf_entry)); else - do_set_mux(CONTROL_PADCONF_CORE, - core_padconf_array_non_essential_4460, - sizeof(core_padconf_array_non_essential_4460) / - sizeof(struct pad_conf_entry)); + do_set_mux((*ctrl)->control_padconf_core_base, + core_padconf_array_non_essential_4460, + sizeof(core_padconf_array_non_essential_4460) / + sizeof(struct pad_conf_entry)); - do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential, + do_set_mux((*ctrl)->control_padconf_wkup_base, + wkup_padconf_array_non_essential, sizeof(wkup_padconf_array_non_essential) / sizeof(struct pad_conf_entry)); if (omap_revision() < OMAP4460_ES1_0) - do_set_mux(CONTROL_PADCONF_WKUP, - wkup_padconf_array_non_essential_4430, - sizeof(wkup_padconf_array_non_essential_4430) / - sizeof(struct pad_conf_entry)); + do_set_mux((*ctrl)->control_padconf_wkup_base, + wkup_padconf_array_non_essential_4430, + sizeof(wkup_padconf_array_non_essential_4430) / + sizeof(struct pad_conf_entry)); } #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)