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@@ -37,6 +37,11 @@
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#endif
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#define PANDA_ULPI_PHY_TYPE_GPIO 182
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+#define PANDA_BOARD_ID_1_GPIO 101
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+#define PANDA_ES_BOARD_ID_1_GPIO 48
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+#define PANDA_BOARD_ID_2_GPIO 171
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+#define PANDA_ES_BOARD_ID_3_GPIO 3
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+#define PANDA_ES_BOARD_ID_4_GPIO 2
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DECLARE_GLOBAL_DATA_PTR;
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@@ -66,6 +71,73 @@ int board_eth_init(bd_t *bis)
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return 0;
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}
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+/*
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+* Routine: get_board_revision
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+* Description: Detect if we are running on a panda revision A1-A6,
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+* or an ES panda board. This can be done by reading
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+* the level of GPIOs and checking the processor revisions.
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+* This should result in:
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+* Panda 4430:
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+* GPIO171, GPIO101, GPIO182: 0 1 1 => A1-A5
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+* GPIO171, GPIO101, GPIO182: 1 0 1 => A6
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+* Panda ES:
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+* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 0 1 1 => B1/B2
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+* GPIO2, GPIO3, GPIO171, GPIO48, GPIO182: 0 0 1 1 1 => B3
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+*/
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+int get_board_revision(void)
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+{
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+ int board_id0, board_id1, board_id2;
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+ int board_id3, board_id4;
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+ int board_id;
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+
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+ int processor_rev = omap_revision();
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+
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+ /* Setup the mux for the common board ID pins (gpio 171 and 182) */
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base + UNIPRO_TX0);
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base + FREF_CLK2_OUT);
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+
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+ board_id0 = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
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+ board_id2 = gpio_get_value(PANDA_BOARD_ID_2_GPIO);
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+
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+ if ((processor_rev >= OMAP4460_ES1_0 &&
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+ processor_rev <= OMAP4460_ES1_1)) {
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+ /*
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+ * Setup the mux for the ES specific board ID pins (gpio 101,
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+ * 2 and 3.
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+ */
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
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+ GPMC_A24);
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
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+ UNIPRO_RY0);
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
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+ UNIPRO_RX1);
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+
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+ board_id1 = gpio_get_value(PANDA_ES_BOARD_ID_1_GPIO);
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+ board_id3 = gpio_get_value(PANDA_ES_BOARD_ID_3_GPIO);
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+ board_id4 = gpio_get_value(PANDA_ES_BOARD_ID_4_GPIO);
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+
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+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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+ setenv("board_name", strcat(CONFIG_SYS_BOARD, "-es"));
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+#endif
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+ board_id = ((board_id4 << 4) | (board_id3 << 3) |
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+ (board_id2 << 2) | (board_id1 << 1) | (board_id0));
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+ } else {
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+ /* Setup the mux for the Ax specific board ID pins (gpio 101) */
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+ writew((IEN | M3), (*ctrl)->control_padconf_core_base +
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+ FREF_CLK2_OUT);
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+
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+ board_id1 = gpio_get_value(PANDA_BOARD_ID_1_GPIO);
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+ board_id = ((board_id2 << 2) | (board_id1 << 1) | (board_id0));
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+
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+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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+ if ((board_id >= 0x3) && (processor_rev == OMAP4430_ES2_3))
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+ setenv("board_name", strcat(CONFIG_SYS_BOARD, "-a4"));
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+#endif
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+ }
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+
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+ return board_id;
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+}
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+
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/**
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* @brief misc_init_r - Configure Panda board specific configurations
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* such as power configurations, ethernet initialization as phase2 of
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@@ -82,11 +154,7 @@ int misc_init_r(void)
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if (omap_revision() == OMAP4430_ES1_0)
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return 0;
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-#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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- if (omap_revision() >= OMAP4460_ES1_0 ||
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- omap_revision() <= OMAP4460_ES1_1)
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- setenv("board_name", strcat(CONFIG_SYS_BOARD, "-es"));
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-#endif
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+ get_board_revision();
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gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
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phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
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@@ -106,7 +174,7 @@ int misc_init_r(void)
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auxclk |= AUXCLK_ENABLE_MASK;
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writel(auxclk, &scrm->auxclk3);
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- } else {
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+ } else {
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/* ULPI PHY supplied by auxclk1 derived from PER dpll */
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debug("ULPI PHY supplied by auxclk1\n");
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@@ -151,9 +219,9 @@ void set_muxconf_regs_essential(void)
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if (omap_revision() >= OMAP4460_ES1_0)
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do_set_mux((*ctrl)->control_padconf_wkup_base,
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- wkup_padconf_array_essential_4460,
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- sizeof(wkup_padconf_array_essential_4460) /
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- sizeof(struct pad_conf_entry));
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+ wkup_padconf_array_essential_4460,
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+ sizeof(wkup_padconf_array_essential_4460) /
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+ sizeof(struct pad_conf_entry));
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}
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void set_muxconf_regs_non_essential(void)
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@@ -165,14 +233,14 @@ void set_muxconf_regs_non_essential(void)
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if (omap_revision() < OMAP4460_ES1_0)
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do_set_mux((*ctrl)->control_padconf_core_base,
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- core_padconf_array_non_essential_4430,
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- sizeof(core_padconf_array_non_essential_4430) /
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- sizeof(struct pad_conf_entry));
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+ core_padconf_array_non_essential_4430,
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+ sizeof(core_padconf_array_non_essential_4430) /
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+ sizeof(struct pad_conf_entry));
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else
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do_set_mux((*ctrl)->control_padconf_core_base,
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- core_padconf_array_non_essential_4460,
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- sizeof(core_padconf_array_non_essential_4460) /
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- sizeof(struct pad_conf_entry));
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+ core_padconf_array_non_essential_4460,
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+ sizeof(core_padconf_array_non_essential_4460) /
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+ sizeof(struct pad_conf_entry));
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do_set_mux((*ctrl)->control_padconf_wkup_base,
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wkup_padconf_array_non_essential,
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@@ -181,9 +249,9 @@ void set_muxconf_regs_non_essential(void)
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if (omap_revision() < OMAP4460_ES1_0)
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do_set_mux((*ctrl)->control_padconf_wkup_base,
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- wkup_padconf_array_non_essential_4430,
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- sizeof(wkup_padconf_array_non_essential_4430) /
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- sizeof(struct pad_conf_entry));
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+ wkup_padconf_array_non_essential_4430,
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+ sizeof(wkup_padconf_array_non_essential_4430) /
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+ sizeof(struct pad_conf_entry));
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}
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#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
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