Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'
[oweals/u-boot.git] / board / nvidia / common / board.c
index 5e28b4cd84349dac2694eb63d2c58f2e73b8fc74..f60f21f39f1103517bdd5c70d7d63e53a5105ac1 100644 (file)
 
 #include <common.h>
 #include <ns16550.h>
+#include <linux/compiler.h>
 #include <asm/io.h>
-#include <asm/arch/tegra2.h>
-#include <asm/arch/sys_proto.h>
-
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
+#ifdef CONFIG_LCD
+#include <asm/arch/display.h>
+#endif
+#include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/uart.h>
-#include "board.h"
-
-#ifdef CONFIG_TEGRA2_MMC
-#include <mmc.h>
+#include <asm/arch/pmu.h>
+#ifdef CONFIG_PWM_TEGRA
+#include <asm/arch/pwm.h>
+#endif
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/uart.h>
+#include <asm/arch-tegra/warmboot.h>
+#ifdef CONFIG_TEGRA_CLOCK_SCALING
+#include <asm/arch/emc.h>
+#endif
+#ifdef CONFIG_USB_EHCI_TEGRA
+#include <asm/arch-tegra/usb.h>
+#include <asm/arch/usb.h>
 #endif
+#ifdef CONFIG_TEGRA_MMC
+#include <asm/arch-tegra/tegra_mmc.h>
+#include <asm/arch-tegra/mmc.h>
+#endif
+#include <i2c.h>
+#include <spi.h>
+#include "emc.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
-const struct tegra2_sysinfo sysinfo = {
-       CONFIG_TEGRA2_BOARD_STRING
+const struct tegra_sysinfo sysinfo = {
+       CONFIG_TEGRA_BOARD_STRING
 };
 
+#ifndef CONFIG_SPL_BUILD
 /*
  * Routine: timer_init
  * Description: init the timestamp and lastinc value
@@ -51,174 +72,54 @@ int timer_init(void)
 {
        return 0;
 }
+#endif
 
-/*
- * Routine: clock_init_uart
- * Description: init the PLL and clock for the UART(s)
- */
-static void clock_init_uart(void)
+void __pin_mux_usb(void)
 {
-       struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
-       struct clk_pll *pll = &clkrst->crc_pll[CLOCK_ID_PERIPH];
-       u32 reg;
-
-       reg = readl(&pll->pll_base);
-       if (!(reg & PLL_BASE_OVRRIDE_MASK)) {
-               /* Override pllp setup for 216MHz operation. */
-               reg = PLL_BYPASS_MASK | PLL_BASE_OVRRIDE_MASK |
-                       (1 << PLL_DIVP_SHIFT) | (0xc << PLL_DIVM_SHIFT);
-               reg |= (NVRM_PLLP_FIXED_FREQ_KHZ / 500) << PLL_DIVN_SHIFT;
-               writel(reg, &pll->pll_base);
-
-               reg |= PLL_ENABLE_MASK;
-               writel(reg, &pll->pll_base);
-
-               reg &= ~PLL_BYPASS_MASK;
-               writel(reg, &pll->pll_base);
-       }
-
-#if defined(CONFIG_TEGRA2_ENABLE_UARTA)
-       /* Assert UART reset and enable clock */
-       reset_set_enable(PERIPH_ID_UART1, 1);
-       clock_enable(PERIPH_ID_UART1);
-
-       /* Enable pllp_out0 to UART */
-       reg = readl(&clkrst->crc_clk_src_uarta);
-       reg &= 0x3FFFFFFF;      /* UARTA_CLK_SRC = 00, PLLP_OUT0 */
-       writel(reg, &clkrst->crc_clk_src_uarta);
-
-       /* wait for 2us */
-       udelay(2);
-
-       /* De-assert reset to UART */
-       reset_set_enable(PERIPH_ID_UART1, 0);
-#endif /* CONFIG_TEGRA2_ENABLE_UARTA */
-#if defined(CONFIG_TEGRA2_ENABLE_UARTD)
-       /* Assert UART reset and enable clock */
-       reset_set_enable(PERIPH_ID_UART4, 1);
-       clock_enable(PERIPH_ID_UART4);
-
-       /* Enable pllp_out0 to UART */
-       reg = readl(&clkrst->crc_clk_src_uartd);
-       reg &= 0x3FFFFFFF;      /* UARTD_CLK_SRC = 00, PLLP_OUT0 */
-       writel(reg, &clkrst->crc_clk_src_uartd);
-
-       /* wait for 2us */
-       udelay(2);
-
-       /* De-assert reset to UART */
-       reset_set_enable(PERIPH_ID_UART4, 0);
-#endif /* CONFIG_TEGRA2_ENABLE_UARTD */
 }
 
-/*
- * Routine: pin_mux_uart
- * Description: setup the pin muxes/tristate values for the UART(s)
- */
-static void pin_mux_uart(void)
-{
-       struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
-       u32 reg;
-
-#if defined(CONFIG_TEGRA2_ENABLE_UARTA)
-       reg = readl(&pmt->pmt_ctl_c);
-       reg &= 0xFFF0FFFF;      /* IRRX_/IRTX_SEL [19:16] = 00 UARTA */
-       writel(reg, &pmt->pmt_ctl_c);
-
-       pinmux_tristate_disable(PIN_IRRX);
-       pinmux_tristate_disable(PIN_IRTX);
-#endif /* CONFIG_TEGRA2_ENABLE_UARTA */
-#if defined(CONFIG_TEGRA2_ENABLE_UARTD)
-       reg = readl(&pmt->pmt_ctl_b);
-       reg &= 0xFFFFFFF3;      /* GMC_SEL [3:2] = 00, UARTD */
-       writel(reg, &pmt->pmt_ctl_b);
-
-       pinmux_tristate_disable(PIN_GMC);
-#endif /* CONFIG_TEGRA2_ENABLE_UARTD */
-}
+void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
 
-#ifdef CONFIG_TEGRA2_MMC
-/*
- * Routine: clock_init_mmc
- * Description: init the PLL and clocks for the SDMMC controllers
- */
-static void clock_init_mmc(void)
+void __pin_mux_spi(void)
 {
-       struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
-       u32 reg;
-
-       /* Do the SDMMC resets/clock enables */
-       reset_set_enable(PERIPH_ID_SDMMC4, 1);
-       clock_enable(PERIPH_ID_SDMMC4);
-
-       /* Enable pllp_out0 to SDMMC4 */
-       reg = readl(&clkrst->crc_clk_src_sdmmc4);
-       reg &= 0x3FFFFF00;      /* SDMMC4_CLK_SRC = 00, PLLP_OUT0 */
-       reg |= (10 << 1);       /* n-1, 11-1 shl 1 */
-       writel(reg, &clkrst->crc_clk_src_sdmmc4);
+}
 
-       /*
-        * As per the Tegra2 TRM, section 5.3.4:
-        * 'Wait 2 us for the clock to flush through the pipe/logic'
-        */
-       udelay(2);
+void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
 
-       reset_set_enable(PERIPH_ID_SDMMC4, 1);
+void __gpio_early_init_uart(void)
+{
+}
 
-       reset_set_enable(PERIPH_ID_SDMMC3, 1);
-       clock_enable(PERIPH_ID_SDMMC3);
+void gpio_early_init_uart(void)
+__attribute__((weak, alias("__gpio_early_init_uart")));
 
-       /* Enable pllp_out0 to SDMMC4, set divisor to 11 for 20MHz */
-       reg = readl(&clkrst->crc_clk_src_sdmmc3);
-       reg &= 0x3FFFFF00;      /* SDMMC3_CLK_SRC = 00, PLLP_OUT0 */
-       reg |= (10 << 1);       /* n-1, 11-1 shl 1 */
-       writel(reg, &clkrst->crc_clk_src_sdmmc3);
+void __pin_mux_nand(void)
+{
+       funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
+}
 
-       /* wait for 2us */
-       udelay(2);
+void pin_mux_nand(void) __attribute__((weak, alias("__pin_mux_nand")));
 
-       reset_set_enable(PERIPH_ID_SDMMC3, 0);
+void __pin_mux_display(void)
+{
 }
 
+void pin_mux_display(void) __attribute__((weak, alias("__pin_mux_display")));
+
 /*
- * Routine: pin_mux_mmc
- * Description: setup the pin muxes/tristate values for the SDMMC(s)
+ * Routine: power_det_init
+ * Description: turn off power detects
  */
-static void pin_mux_mmc(void)
+static void power_det_init(void)
 {
-       struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
-       u32 reg;
-
-       /* SDMMC4 */
-       /* config 2, x8 on 2nd set of pins */
-       reg = readl(&pmt->pmt_ctl_a);
-       reg |= (3 << 16);       /* ATB_SEL [17:16] = 11 SDIO4 */
-       writel(reg, &pmt->pmt_ctl_a);
-       reg = readl(&pmt->pmt_ctl_b);
-       reg |= (3 << 0);        /* GMA_SEL [1:0] = 11 SDIO4 */
-       writel(reg, &pmt->pmt_ctl_b);
-       reg = readl(&pmt->pmt_ctl_d);
-       reg |= (3 << 0);        /* GME_SEL [1:0] = 11 SDIO4 */
-       writel(reg, &pmt->pmt_ctl_d);
-
-       pinmux_tristate_disable(PIN_ATB);
-       pinmux_tristate_disable(PIN_GMA);
-       pinmux_tristate_disable(PIN_GME);
-
-       /* SDMMC3 */
-       /* SDIO3_CLK, SDIO3_CMD, SDIO3_DAT[3:0] */
-       reg = readl(&pmt->pmt_ctl_d);
-       reg &= 0xFFFF03FF;
-       reg |= (2 << 10);       /* SDB_SEL [11:10] = 01 SDIO3 */
-       reg |= (2 << 12);       /* SDC_SEL [13:12] = 01 SDIO3 */
-       reg |= (2 << 14);       /* SDD_SEL [15:14] = 01 SDIO3 */
-       writel(reg, &pmt->pmt_ctl_d);
-
-       pinmux_tristate_disable(PIN_SDC);
-       pinmux_tristate_disable(PIN_SDD);
-       pinmux_tristate_disable(PIN_SDB);
-}
+#if defined(CONFIG_TEGRA20)
+       struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+       /* turn off power detects */
+       writel(0, &pmc->pmc_pwr_det_latch);
+       writel(0, &pmc->pmc_pwr_det);
 #endif
+}
 
 /*
  * Routine: board_init
@@ -226,59 +127,149 @@ static void pin_mux_mmc(void)
  */
 int board_init(void)
 {
+       __maybe_unused int err;
+
+       /* Do clocks and UART first so that printf() works */
+       clock_init();
+       clock_verify();
+
+#ifdef CONFIG_FDT_SPI
+       pin_mux_spi();
+       spi_init();
+#endif
+
+#ifdef CONFIG_PWM_TEGRA
+       if (pwm_init(gd->fdt_blob))
+               debug("%s: Failed to init pwm\n", __func__);
+#endif
+#ifdef CONFIG_LCD
+       pin_mux_display();
+       tegra_lcd_check_next_stage(gd->fdt_blob, 0);
+#endif
        /* boot param addr */
        gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
 
+       power_det_init();
+
+#ifdef CONFIG_TEGRA_I2C
+#ifndef CONFIG_SYS_I2C_INIT_BOARD
+#error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
+#endif
+       i2c_init_board();
+# ifdef CONFIG_TEGRA_PMU
+       if (pmu_set_nominal())
+               debug("Failed to select nominal voltages\n");
+#  ifdef CONFIG_TEGRA_CLOCK_SCALING
+       err = board_emc_init();
+       if (err)
+               debug("Memory controller init failed: %d\n", err);
+#  endif
+# endif /* CONFIG_TEGRA_PMU */
+#endif /* CONFIG_TEGRA_I2C */
+
+#ifdef CONFIG_USB_EHCI_TEGRA
+       pin_mux_usb();
+       board_usb_init(gd->fdt_blob);
+#endif
+#ifdef CONFIG_LCD
+       tegra_lcd_check_next_stage(gd->fdt_blob, 0);
+#endif
+
+#ifdef CONFIG_TEGRA_NAND
+       pin_mux_nand();
+#endif
+
+#ifdef CONFIG_TEGRA_LP0
+       /* save Sdram params to PMC 2, 4, and 24 for WB0 */
+       warmboot_save_sdram_params();
+
+       /* prepare the WB code to LP0 location */
+       warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
+#endif
+
        return 0;
 }
 
-#ifdef CONFIG_TEGRA2_MMC
-/* this is a weak define that we are overriding */
-int board_mmc_init(bd_t *bd)
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+static void __gpio_early_init(void)
 {
-       debug("board_mmc_init called\n");
-       /* Enable clocks, muxes, etc. for SDMMC controllers */
-       clock_init_mmc();
-       pin_mux_mmc();
+}
 
-       debug("board_mmc_init: init eMMC\n");
-       /* init dev 0, eMMC chip, with 4-bit bus */
-       tegra2_mmc_init(0, 4);
+void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
 
-       debug("board_mmc_init: init SD slot\n");
-       /* init dev 1, SD slot, with 4-bit bus */
-       tegra2_mmc_init(1, 4);
+int board_early_init_f(void)
+{
+#if !defined(CONFIG_TEGRA20)
+       pinmux_init();
+#endif
+       board_init_uart_f();
+
+       /* Initialize periph GPIOs */
+       gpio_early_init();
+       gpio_early_init_uart();
+#ifdef CONFIG_LCD
+       tegra_lcd_early_init(gd->fdt_blob);
+#endif
 
        return 0;
 }
+#endif /* EARLY_INIT */
 
-/* this is a weak define that we are overriding */
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_late_init(void)
 {
-       debug("board_mmc_getcd called\n");
-       /*
-        * Hard-code CD presence for now. Need to add GPIO inputs
-        * for Seaboard & Harmony (& Kaen/Aebl/Wario?)
-        */
-       *cd = 1;
+#ifdef CONFIG_LCD
+       /* Make sure we finish initing the LCD */
+       tegra_lcd_check_next_stage(gd->fdt_blob, 1);
+#endif
        return 0;
 }
-#endif
 
-#ifdef CONFIG_BOARD_EARLY_INIT_F
-int board_early_init_f(void)
+#if defined(CONFIG_TEGRA_MMC)
+void __pin_mux_mmc(void)
 {
-       /* Initialize UART clocks */
-       clock_init_uart();
+}
 
-       /* Initialize periph pinmuxes */
-       pin_mux_uart();
+void pin_mux_mmc(void) __attribute__((weak, alias("__pin_mux_mmc")));
 
-       /* Initialize periph GPIOs */
-       gpio_config_uart();
+/* this is a weak define that we are overriding */
+int board_mmc_init(bd_t *bd)
+{
+       debug("%s called\n", __func__);
+
+       /* Enable muxes, etc. for SDMMC controllers */
+       pin_mux_mmc();
+
+       debug("%s: init MMC\n", __func__);
+       tegra_mmc_init();
 
-       /* Init UART, scratch regs, and start CPU */
-       tegra2_start();
        return 0;
 }
-#endif /* EARLY_INIT */
+
+void pad_init_mmc(struct mmc_host *host)
+{
+#if defined(CONFIG_TEGRA30)
+       enum periph_id id = host->mmc_id;
+       u32 val;
+
+       debug("%s: sdmmc address = %08x, id = %d\n", __func__,
+               (unsigned int)host->reg, id);
+
+       /* Set the pad drive strength for SDMMC1 or 3 only */
+       if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
+               debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
+                       __func__);
+               return;
+       }
+
+       val = readl(&host->reg->sdmemcmppadctl);
+       val &= 0xFFFFFFF0;
+       val |= MEMCOMP_PADCTRL_VREF;
+       writel(val, &host->reg->sdmemcmppadctl);
+
+       val = readl(&host->reg->autocalcfg);
+       val &= 0xFFFF0000;
+       val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
+       writel(val, &host->reg->autocalcfg);
+#endif /* T30 */
+}
+#endif /* MMC */