Merge git://git.denx.de/u-boot-socfpga

[platform/kernel/u-boot.git] / board / nvidia / nyan-big / nyan-big.c

diff --git a/board/nvidia/nyan-big/nyan-big.c b/board/nvidia/nyan-big/nyan-big.c
index d4d2496..54acf54 100644 (file)
--- a/board/nvidia/nyan-big/nyan-big.c
+++ b/board/nvidia/nyan-big/nyan-big.c
@@ -6,8 +6,17 @@
  */
 
 #include <common.h>
-#include <asm/arch/gpio.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
 #include <asm/arch/pinmux.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/mc.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <power/as3722.h>
+#include <power/pmic.h>
 #include "pinmux-config-nyan-big.h"
 
 /*
@@ -25,3 +34,100 @@ void pinmux_init(void)
        pinmux_config_drvgrp_table(nyan_big_drvgrps,
                                   ARRAY_SIZE(nyan_big_drvgrps));
 }
+
+int tegra_board_id(void)
+{
+       static const int vector[] = {TEGRA_GPIO(Q, 3), TEGRA_GPIO(T, 1),
+                                       TEGRA_GPIO(X, 1), TEGRA_GPIO(X, 4),
+                                       -1};
+
+       gpio_claim_vector(vector, "board_id%d");
+       return gpio_get_values_as_int(vector);
+}
+
+int tegra_lcd_pmic_init(int board_id)
+{
+       struct udevice *dev;
+       int ret;
+
+       ret = uclass_get_device_by_driver(UCLASS_PMIC,
+                                         DM_GET_DRIVER(pmic_as3722), &dev);
+       if (ret) {
+               debug("%s: Failed to find PMIC\n", __func__);
+               return ret;
+       }
+
+       if (board_id == 0)
+               pmic_reg_write(dev, 0x00, 0x3c);
+       else
+               pmic_reg_write(dev, 0x00, 0x50);
+       pmic_reg_write(dev, 0x12, 0x10);
+       pmic_reg_write(dev, 0x0c, 0x07);
+       pmic_reg_write(dev, 0x20, 0x10);
+
+       return 0;
+}
+
+/* Setup required information for Linux kernel */
+static void setup_kernel_info(void)
+{
+       struct mc_ctlr *mc = (void *)NV_PA_MC_BASE;
+
+       /* The kernel graphics driver needs this region locked down */
+       writel(0, &mc->mc_video_protect_bom);
+       writel(0, &mc->mc_video_protect_size_mb);
+       writel(1, &mc->mc_video_protect_reg_ctrl);
+}
+
+/*
+ * We need to take ALL audio devices conntected to AHUB (AUDIO, APBIF,
+ * I2S, DAM, AMX, ADX, SPDIF, AFC) out of reset and enable the clocks.
+ * Otherwise reading AHUB devices will hang when the kernel boots.
+ */
+static void enable_required_clocks(void)
+{
+       static enum periph_id ids[] = {
+               PERIPH_ID_I2S0,
+               PERIPH_ID_I2S1,
+               PERIPH_ID_I2S2,
+               PERIPH_ID_I2S3,
+               PERIPH_ID_I2S4,
+               PERIPH_ID_AUDIO,
+               PERIPH_ID_APBIF,
+               PERIPH_ID_DAM0,
+               PERIPH_ID_DAM1,
+               PERIPH_ID_DAM2,
+               PERIPH_ID_AMX0,
+               PERIPH_ID_AMX1,
+               PERIPH_ID_ADX0,
+               PERIPH_ID_ADX1,
+               PERIPH_ID_SPDIF,
+               PERIPH_ID_AFC0,
+               PERIPH_ID_AFC1,
+               PERIPH_ID_AFC2,
+               PERIPH_ID_AFC3,
+               PERIPH_ID_AFC4,
+               PERIPH_ID_AFC5,
+               PERIPH_ID_EXTPERIPH1
+       };
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(ids); i++)
+               clock_enable(ids[i]);
+       udelay(2);
+       for (i = 0; i < ARRAY_SIZE(ids); i++)
+               reset_set_enable(ids[i], 0);
+}
+
+int nvidia_board_init(void)
+{
+       clock_start_periph_pll(PERIPH_ID_EXTPERIPH1, CLOCK_ID_OSC, 12000000);
+       clock_start_periph_pll(PERIPH_ID_I2S1, CLOCK_ID_OSC, 1500000);
+
+       /* For external MAX98090 audio codec */
+       clock_external_output(1);
+       setup_kernel_info();
+       enable_required_clocks();
+
+       return 0;
+}