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@@ -24,9 +24,11 @@
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#include <common.h>
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#include <common.h>
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#include <asm/io.h>
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#include <asm/io.h>
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#include <asm/arch/tegra2.h>
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#include <asm/arch/tegra2.h>
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+#include <asm/arch/pinmux.h>
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#ifdef CONFIG_TEGRA2_MMC
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#ifdef CONFIG_TEGRA2_MMC
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#include <mmc.h>
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#include <mmc.h>
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#endif
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#endif
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+#include "../common/board.h"
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/*
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/*
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* Routine: gpio_config_uart
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* Routine: gpio_config_uart
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@@ -37,6 +39,39 @@ void gpio_config_uart(void)
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}
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}
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#ifdef CONFIG_TEGRA2_MMC
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#ifdef CONFIG_TEGRA2_MMC
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+/*
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+ * Routine: pin_mux_mmc
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+ * Description: setup the pin muxes/tristate values for the SDMMC(s)
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+ */
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+static void pin_mux_mmc(void)
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+{
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+ /* SDMMC4: config 3, x8 on 2nd set of pins */
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+ pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4);
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+ pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4);
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+ pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4);
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+
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+ pinmux_tristate_disable(PINGRP_ATB);
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+ pinmux_tristate_disable(PINGRP_GMA);
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+ pinmux_tristate_disable(PINGRP_GME);
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+
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+ /* For power GPIO PI6 */
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+ pinmux_tristate_disable(PINGRP_ATA);
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+ /* For CD GPIO PH2 */
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+ pinmux_tristate_disable(PINGRP_ATD);
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+
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+ /* SDMMC2: SDIO2_CLK, SDIO2_CMD, SDIO2_DAT[7:0] */
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+ pinmux_set_func(PINGRP_DTA, PMUX_FUNC_SDIO2);
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+ pinmux_set_func(PINGRP_DTD, PMUX_FUNC_SDIO2);
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+
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+ pinmux_tristate_disable(PINGRP_DTA);
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+ pinmux_tristate_disable(PINGRP_DTD);
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+
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+ /* For power GPIO PT3 */
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+ pinmux_tristate_disable(PINGRP_DTB);
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+ /* For CD GPIO PI5 */
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+ pinmux_tristate_disable(PINGRP_ATC);
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+}
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+
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/*
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/*
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* Routine: gpio_config_mmc
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* Routine: gpio_config_mmc
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* Description: Set GPIOs for SD card
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* Description: Set GPIOs for SD card
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@@ -46,6 +81,27 @@ void gpio_config_mmc(void)
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/* Not implemented for now */
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/* Not implemented for now */
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}
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}
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+/* this is a weak define that we are overriding */
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+int board_mmc_init(bd_t *bd)
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+{
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+ debug("board_mmc_init called\n");
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+
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+ /* Enable muxes, etc. for SDMMC controllers */
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+ pin_mux_mmc();
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+ gpio_config_mmc();
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+
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+ debug("board_mmc_init: init SD slot J26\n");
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+ /* init dev 0, SD slot J26, with 4-bit bus */
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+ /* The board has an 8-bit bus, but 8-bit doesn't work yet */
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+ tegra2_mmc_init(0, 4);
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+
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+ debug("board_mmc_init: init SD slot J5\n");
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+ /* init dev 2, SD slot J5, with 4-bit bus */
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+ tegra2_mmc_init(2, 4);
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+
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+ return 0;
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+}
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+
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/* this is a weak define that we are overriding */
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/* this is a weak define that we are overriding */
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int board_mmc_getcd(u8 *cd, struct mmc *mmc)
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int board_mmc_getcd(u8 *cd, struct mmc *mmc)
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{
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{
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