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-rw-r--r--arch/arm/dts/tegra114.dtsi141
-rw-r--r--arch/arm/include/asm/arch-tegra/board.h3
-rw-r--r--arch/arm/include/asm/arch-tegra/tegra_slink.h84
-rw-r--r--arch/arm/include/asm/arch-tegra/tegra_spi.h75
-rw-r--r--arch/arm/include/asm/arch-tegra114/gp_padctrl.h6
-rw-r--r--arch/arm/include/asm/arch-tegra114/tegra114_spi.h41
-rw-r--r--arch/arm/include/asm/arch-tegra20/tegra20_sflash.h41
-rw-r--r--arch/arm/include/asm/arch-tegra20/tegra20_slink.h41
-rw-r--r--arch/arm/include/asm/arch-tegra20/uart-spi-switch.h46
-rw-r--r--board/nvidia/common/board.c5
-rw-r--r--board/nvidia/common/common.mk1
-rw-r--r--board/nvidia/common/uart-spi-switch.c125
-rw-r--r--board/nvidia/dalmore/dalmore.c66
-rw-r--r--board/nvidia/dalmore/pinmux-config-dalmore.h6
-rw-r--r--board/nvidia/dts/tegra114-dalmore.dts18
-rw-r--r--board/nvidia/seaboard/seaboard.c2
-rw-r--r--drivers/mtd/spi/winbond.c5
-rw-r--r--drivers/spi/Makefile6
-rw-r--r--drivers/spi/fdt_spi.c186
-rw-r--r--drivers/spi/tegra114_spi.c405
-rw-r--r--drivers/spi/tegra20_sflash.c (renamed from drivers/spi/tegra_spi.c)215
-rw-r--r--drivers/spi/tegra20_slink.c (renamed from drivers/spi/tegra_slink.c)128
-rw-r--r--include/configs/cardhu.h2
-rw-r--r--include/configs/dalmore.h23
-rw-r--r--include/configs/tegra-common-post.h4
-rw-r--r--include/configs/trimslice.h2
-rw-r--r--include/fdtdec.h1
-rw-r--r--lib/fdtdec.c1
28 files changed, 1188 insertions, 491 deletions
diff --git a/arch/arm/dts/tegra114.dtsi b/arch/arm/dts/tegra114.dtsi
index 701c0f9..f86d18d 100644
--- a/arch/arm/dts/tegra114.dtsi
+++ b/arch/arm/dts/tegra114.dtsi
@@ -9,6 +9,43 @@
#clock-cells = <1>;
};
+ apbdma: dma {
+ compatible = "nvidia,tegra114-apbdma", "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
+ reg = <0x6000a000 0x1400>;
+ interrupts = <0 104 0x04
+ 0 105 0x04
+ 0 106 0x04
+ 0 107 0x04
+ 0 108 0x04
+ 0 109 0x04
+ 0 110 0x04
+ 0 111 0x04
+ 0 112 0x04
+ 0 113 0x04
+ 0 114 0x04
+ 0 115 0x04
+ 0 116 0x04
+ 0 117 0x04
+ 0 118 0x04
+ 0 119 0x04
+ 0 128 0x04
+ 0 129 0x04
+ 0 130 0x04
+ 0 131 0x04
+ 0 132 0x04
+ 0 133 0x04
+ 0 134 0x04
+ 0 135 0x04
+ 0 136 0x04
+ 0 137 0x04
+ 0 138 0x04
+ 0 139 0x04
+ 0 140 0x04
+ 0 141 0x04
+ 0 142 0x04
+ 0 143 0x04>;
+ };
+
gpio: gpio {
compatible = "nvidia,tegra114-gpio", "nvidia,tegra30-gpio";
reg = <0x6000d000 0x1000>;
@@ -75,4 +112,108 @@
clocks = <&tegra_car 47>;
status = "disabled";
};
+
+ spi@7000d400 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000d400 0x200>;
+ interrupts = <0 59 0x04>;
+ nvidia,dma-request-selector = <&apbdma 15>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC1, PLLP_OUT0 */
+ clocks = <&tegra_car 41>;
+ };
+
+ spi@7000d600 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000d600 0x200>;
+ interrupts = <0 82 0x04>;
+ nvidia,dma-request-selector = <&apbdma 16>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC2, PLLP_OUT0 */
+ clocks = <&tegra_car 44>;
+ };
+
+ spi@7000d800 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000d480 0x200>;
+ interrupts = <0 83 0x04>;
+ nvidia,dma-request-selector = <&apbdma 17>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC3, PLLP_OUT0 */
+ clocks = <&tegra_car 46>;
+ };
+
+ spi@7000da00 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000da00 0x200>;
+ interrupts = <0 93 0x04>;
+ nvidia,dma-request-selector = <&apbdma 18>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC4, PLLP_OUT0 */
+ clocks = <&tegra_car 68>;
+ };
+
+ spi@7000dc00 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000dc00 0x200>;
+ interrupts = <0 94 0x04>;
+ nvidia,dma-request-selector = <&apbdma 27>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC5, PLLP_OUT0 */
+ clocks = <&tegra_car 104>;
+ };
+
+ spi@7000de00 {
+ compatible = "nvidia,tegra114-spi";
+ reg = <0x7000de00 0x200>;
+ interrupts = <0 79 0x04>;
+ nvidia,dma-request-selector = <&apbdma 28>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ /* PERIPH_ID_SBC6, PLLP_OUT0 */
+ clocks = <&tegra_car 105>;
+ };
+
+ sdhci@78000000 {
+ compatible = "nvidia,tegra114-sdhci", "nvidia,tegra30-sdhci";
+ reg = <0x78000000 0x200>;
+ interrupts = <0 14 0x04>;
+ clocks = <&tegra_car 14>;
+ status = "disable";
+ };
+
+ sdhci@78000200 {
+ compatible = "nvidia,tegra114-sdhci", "nvidia,tegra30-sdhci";
+ reg = <0x78000200 0x200>;
+ interrupts = <0 15 0x04>;
+ clocks = <&tegra_car 9>;
+ status = "disable";
+ };
+
+ sdhci@78000400 {
+ compatible = "nvidia,tegra114-sdhci", "nvidia,tegra30-sdhci";
+ reg = <0x78000400 0x200>;
+ interrupts = <0 19 0x04>;
+ clocks = <&tegra_car 69>;
+ status = "disable";
+ };
+
+ sdhci@78000600 {
+ compatible = "nvidia,tegra114-sdhci", "nvidia,tegra30-sdhci";
+ reg = <0x78000600 0x200>;
+ interrupts = <0 31 0x04>;
+ clocks = <&tegra_car 15>;
+ status = "disable";
+ };
};
diff --git a/arch/arm/include/asm/arch-tegra/board.h b/arch/arm/include/asm/arch-tegra/board.h
index 3db0d93..1a66990 100644
--- a/arch/arm/include/asm/arch-tegra/board.h
+++ b/arch/arm/include/asm/arch-tegra/board.h
@@ -25,8 +25,7 @@
#define _TEGRA_BOARD_H_
/* Set up pinmux to make UART usable */
-void gpio_config_uart(void); /* CONFIG_SPI_UART_SWITCH */
-void gpio_early_init_uart(void); /*!CONFIG_SPI_UART_SWITCH */
+void gpio_early_init_uart(void);
/* Set up early UART output */
void board_init_uart_f(void);
diff --git a/arch/arm/include/asm/arch-tegra/tegra_slink.h b/arch/arm/include/asm/arch-tegra/tegra_slink.h
deleted file mode 100644
index 74804b5..0000000
--- a/arch/arm/include/asm/arch-tegra/tegra_slink.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * NVIDIA Tegra SPI-SLINK controller
- *
- * Copyright 2010-2013 NVIDIA Corporation
- *
- * This software may be used and distributed according to the
- * terms of the GNU Public License, Version 2, incorporated
- * herein by reference.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * Version 2 as published by the Free Software Foundation.
- *
- * 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
- */
-
-#ifndef _TEGRA_SLINK_H_
-#define _TEGRA_SLINK_H_
-
-#include <asm/types.h>
-
-struct slink_tegra {
- u32 command; /* SLINK_COMMAND_0 register */
- u32 command2; /* SLINK_COMMAND2_0 reg */
- u32 status; /* SLINK_STATUS_0 register */
- u32 reserved; /* Reserved offset 0C */
- u32 mas_data; /* SLINK_MAS_DATA_0 reg */
- u32 slav_data; /* SLINK_SLAVE_DATA_0 reg */
- u32 dma_ctl; /* SLINK_DMA_CTL_0 register */
- u32 status2; /* SLINK_STATUS2_0 reg */
- u32 rsvd[56]; /* 0x20 to 0xFF reserved */
- u32 tx_fifo; /* SLINK_TX_FIFO_0 reg off 100h */
- u32 rsvd2[31]; /* 0x104 to 0x17F reserved */
- u32 rx_fifo; /* SLINK_RX_FIFO_0 reg off 180h */
-};
-
-/* COMMAND */
-#define SLINK_CMD_ENB (1 << 31)
-#define SLINK_CMD_GO (1 << 30)
-#define SLINK_CMD_M_S (1 << 28)
-#define SLINK_CMD_CK_SDA (1 << 21)
-#define SLINK_CMD_CS_POL (1 << 13)
-#define SLINK_CMD_CS_VAL (1 << 12)
-#define SLINK_CMD_CS_SOFT (1 << 11)
-#define SLINK_CMD_BIT_LENGTH (1 << 4)
-#define SLINK_CMD_BIT_LENGTH_MASK 0x0000001F
-/* COMMAND2 */
-#define SLINK_CMD2_TXEN (1 << 30)
-#define SLINK_CMD2_RXEN (1 << 31)
-#define SLINK_CMD2_SS_EN (1 << 18)
-#define SLINK_CMD2_SS_EN_SHIFT 18
-#define SLINK_CMD2_SS_EN_MASK 0x000C0000
-#define SLINK_CMD2_CS_ACTIVE_BETWEEN (1 << 17)
-/* STATUS */
-#define SLINK_STAT_BSY (1 << 31)
-#define SLINK_STAT_RDY (1 << 30)
-#define SLINK_STAT_ERR (1 << 29)
-#define SLINK_STAT_RXF_FLUSH (1 << 27)
-#define SLINK_STAT_TXF_FLUSH (1 << 26)
-#define SLINK_STAT_RXF_OVF (1 << 25)
-#define SLINK_STAT_TXF_UNR (1 << 24)
-#define SLINK_STAT_RXF_EMPTY (1 << 23)
-#define SLINK_STAT_RXF_FULL (1 << 22)
-#define SLINK_STAT_TXF_EMPTY (1 << 21)
-#define SLINK_STAT_TXF_FULL (1 << 20)
-#define SLINK_STAT_TXF_OVF (1 << 19)
-#define SLINK_STAT_RXF_UNR (1 << 18)
-#define SLINK_STAT_CUR_BLKCNT (1 << 15)
-/* STATUS2 */
-#define SLINK_STAT2_RXF_FULL_CNT (1 << 16)
-#define SLINK_STAT2_TXF_FULL_CNT (1 << 0)
-
-#define SPI_TIMEOUT 1000
-#define TEGRA_SPI_MAX_FREQ 52000000
-
-#endif /* _TEGRA_SLINK_H_ */
diff --git a/arch/arm/include/asm/arch-tegra/tegra_spi.h b/arch/arm/include/asm/arch-tegra/tegra_spi.h
deleted file mode 100644
index d53a93f..0000000
--- a/arch/arm/include/asm/arch-tegra/tegra_spi.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * NVIDIA Tegra20 SPI-FLASH controller
- *
- * Copyright 2010-2012 NVIDIA Corporation
- *
- * This software may be used and distributed according to the
- * terms of the GNU Public License, Version 2, incorporated
- * herein by reference.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * Version 2 as published by the Free Software Foundation.
- *
- * 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
- */
-
-#ifndef _TEGRA_SPI_H_
-#define _TEGRA_SPI_H_
-
-#include <asm/types.h>
-
-struct spi_tegra {
- u32 command; /* SPI_COMMAND_0 register */
- u32 status; /* SPI_STATUS_0 register */
- u32 rx_cmp; /* SPI_RX_CMP_0 register */
- u32 dma_ctl; /* SPI_DMA_CTL_0 register */
- u32 tx_fifo; /* SPI_TX_FIFO_0 register */
- u32 rsvd[3]; /* offsets 0x14 to 0x1F reserved */
- u32 rx_fifo; /* SPI_RX_FIFO_0 register */
-};
-
-#define SPI_CMD_GO (1 << 30)
-#define SPI_CMD_ACTIVE_SCLK_SHIFT 26
-#define SPI_CMD_ACTIVE_SCLK_MASK (3 << SPI_CMD_ACTIVE_SCLK_SHIFT)
-#define SPI_CMD_CK_SDA (1 << 21)
-#define SPI_CMD_ACTIVE_SDA_SHIFT 18
-#define SPI_CMD_ACTIVE_SDA_MASK (3 << SPI_CMD_ACTIVE_SDA_SHIFT)
-#define SPI_CMD_CS_POL (1 << 16)
-#define SPI_CMD_TXEN (1 << 15)
-#define SPI_CMD_RXEN (1 << 14)
-#define SPI_CMD_CS_VAL (1 << 13)
-#define SPI_CMD_CS_SOFT (1 << 12)
-#define SPI_CMD_CS_DELAY (1 << 9)
-#define SPI_CMD_CS3_EN (1 << 8)
-#define SPI_CMD_CS2_EN (1 << 7)
-#define SPI_CMD_CS1_EN (1 << 6)
-#define SPI_CMD_CS0_EN (1 << 5)
-#define SPI_CMD_BIT_LENGTH (1 << 4)
-#define SPI_CMD_BIT_LENGTH_MASK 0x0000001F
-
-#define SPI_STAT_BSY (1 << 31)
-#define SPI_STAT_RDY (1 << 30)
-#define SPI_STAT_RXF_FLUSH (1 << 29)
-#define SPI_STAT_TXF_FLUSH (1 << 28)
-#define SPI_STAT_RXF_UNR (1 << 27)
-#define SPI_STAT_TXF_OVF (1 << 26)
-#define SPI_STAT_RXF_EMPTY (1 << 25)
-#define SPI_STAT_RXF_FULL (1 << 24)
-#define SPI_STAT_TXF_EMPTY (1 << 23)
-#define SPI_STAT_TXF_FULL (1 << 22)
-#define SPI_STAT_SEL_TXRX_N (1 << 16)
-#define SPI_STAT_CUR_BLKCNT (1 << 15)
-
-#define SPI_TIMEOUT 1000
-#define TEGRA_SPI_MAX_FREQ 52000000
-
-#endif /* _TEGRA_SPI_H_ */
diff --git a/arch/arm/include/asm/arch-tegra114/gp_padctrl.h b/arch/arm/include/asm/arch-tegra114/gp_padctrl.h
index 1ef1a14..41ce677 100644
--- a/arch/arm/include/asm/arch-tegra114/gp_padctrl.h
+++ b/arch/arm/include/asm/arch-tegra114/gp_padctrl.h
@@ -74,4 +74,10 @@ struct apb_misc_gp_ctlr {
u32 aocfg0; /* 0x1AC: APB_MISC_GP_AOCFG0PADCTRL */
};
+/* SDMMC1/3 settings from section 27.5 of T114 TRM */
+#define SDIOCFG_DRVUP_SLWF 0
+#define SDIOCFG_DRVDN_SLWR 0
+#define SDIOCFG_DRVUP 0x24
+#define SDIOCFG_DRVDN 0x14
+
#endif /* _TEGRA114_GP_PADCTRL_H_ */
diff --git a/arch/arm/include/asm/arch-tegra114/tegra114_spi.h b/arch/arm/include/asm/arch-tegra114/tegra114_spi.h
new file mode 100644
index 0000000..48197bc
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra114/tegra114_spi.h
@@ -0,0 +1,41 @@
+/*
+ * NVIDIA Tegra SPI controller
+ *
+ * Copyright 2010-2013 NVIDIA Corporation
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+#ifndef _TEGRA114_SPI_H_
+#define _TEGRA114_SPI_H_
+
+#include <asm/types.h>
+
+int tegra114_spi_init(int *node_list, int count);
+int tegra114_spi_cs_is_valid(unsigned int bus, unsigned int cs);
+struct spi_slave *tegra114_spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode);
+void tegra114_spi_free_slave(struct spi_slave *slave);
+int tegra114_spi_claim_bus(struct spi_slave *slave);
+void tegra114_spi_cs_activate(struct spi_slave *slave);
+void tegra114_spi_cs_deactivate(struct spi_slave *slave);
+int tegra114_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags);
+
+#endif /* _TEGRA114_SPI_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/tegra20_sflash.h b/arch/arm/include/asm/arch-tegra20/tegra20_sflash.h
new file mode 100644
index 0000000..e8cc68c
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/tegra20_sflash.h
@@ -0,0 +1,41 @@
+/*
+ * NVIDIA Tegra20 SPI-FLASH controller
+ *
+ * Copyright 2010-2012 NVIDIA Corporation
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+#ifndef _TEGRA20_SPI_H_
+#define _TEGRA20_SPI_H_
+
+#include <asm/types.h>
+
+int tegra20_spi_cs_is_valid(unsigned int bus, unsigned int cs);
+struct spi_slave *tegra20_spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode);
+void tegra20_spi_free_slave(struct spi_slave *slave);
+int tegra20_spi_init(int *node_list, int count);
+int tegra20_spi_claim_bus(struct spi_slave *slave);
+void tegra20_spi_cs_activate(struct spi_slave *slave);
+void tegra20_spi_cs_deactivate(struct spi_slave *slave);
+int tegra20_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags);
+
+#endif /* _TEGRA20_SPI_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/tegra20_slink.h b/arch/arm/include/asm/arch-tegra20/tegra20_slink.h
new file mode 100644
index 0000000..5aa74dd
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/tegra20_slink.h
@@ -0,0 +1,41 @@
+/*
+ * NVIDIA Tegra SPI-SLINK controller
+ *
+ * Copyright 2010-2013 NVIDIA Corporation
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+#ifndef _TEGRA30_SPI_H_
+#define _TEGRA30_SPI_H_
+
+#include <asm/types.h>
+
+int tegra30_spi_init(int *node_list, int count);
+int tegra30_spi_cs_is_valid(unsigned int bus, unsigned int cs);
+struct spi_slave *tegra30_spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode);
+void tegra30_spi_free_slave(struct spi_slave *slave);
+int tegra30_spi_claim_bus(struct spi_slave *slave);
+void tegra30_spi_cs_activate(struct spi_slave *slave);
+void tegra30_spi_cs_deactivate(struct spi_slave *slave);
+int tegra30_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags);
+
+#endif /* _TEGRA30_SPI_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/uart-spi-switch.h b/arch/arm/include/asm/arch-tegra20/uart-spi-switch.h
deleted file mode 100644
index 82ac180..0000000
--- a/arch/arm/include/asm/arch-tegra20/uart-spi-switch.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- * 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
- */
-
-#ifndef _UART_SPI_SWITCH_H
-#define _UART_SPI_SWITCH_H
-
-#if defined(CONFIG_SPI_UART_SWITCH)
-/*
- * Signal that we are about to use the UART. This unfortunate hack is
- * required by Seaboard, which cannot use its console and SPI at the same
- * time! If the board file provides this, the board config will declare it.
- * Let this be a lesson for others.
- */
-void pinmux_select_uart(void);
-
-/*
- * Signal that we are about the use the SPI bus.
- */
-void pinmux_select_spi(void);
-
-#else /* not CONFIG_SPI_UART_SWITCH */
-
-static inline void pinmux_select_uart(void) {}
-static inline void pinmux_select_spi(void) {}
-
-#endif
-
-#endif
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index 7d9f361..8d7a227 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -132,10 +132,7 @@ int board_init(void)
clock_init();
clock_verify();
-#ifdef CONFIG_SPI_UART_SWITCH
- gpio_config_uart();
-#endif
-#if defined(CONFIG_TEGRA_SPI) || defined(CONFIG_TEGRA_SLINK)
+#ifdef CONFIG_FDT_SPI
pin_mux_spi();
spi_init();
#endif
diff --git a/board/nvidia/common/common.mk b/board/nvidia/common/common.mk
index bd6202c..d9bcb85 100644
--- a/board/nvidia/common/common.mk
+++ b/board/nvidia/common/common.mk
@@ -1,4 +1,3 @@
# common options for all tegra boards
COBJS-y += ../../nvidia/common/board.o
-COBJS-$(CONFIG_SPI_UART_SWITCH) += ../../nvidia/common/uart-spi-switch.o
COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += ../../nvidia/common/emc.o
diff --git a/board/nvidia/common/uart-spi-switch.c b/board/nvidia/common/uart-spi-switch.c
deleted file mode 100644
index e9d445d..0000000
--- a/board/nvidia/common/uart-spi-switch.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- *
- * 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
- */
-
-#include <common.h>
-#include <asm/gpio.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/uart-spi-switch.h>
-#include <asm/arch/tegra.h>
-#include <asm/arch-tegra/tegra_spi.h>
-#include <asm/arch-tegra/board.h>
-
-/* position of the UART/SPI select switch */
-enum spi_uart_switch {
- SWITCH_UNKNOWN,
- SWITCH_SPI,
- SWITCH_UART,
- SWITCH_BOTH
-};
-
-/* Information about the spi/uart switch */
-struct spi_uart {
- int gpio; /* GPIO to control switch */
- u32 port; /* Port number of UART affected */
-};
-
-static struct spi_uart local;
-static enum spi_uart_switch switch_pos; /* Current switch position */
-
-
-static void get_config(struct spi_uart *config)
-{
-#if defined CONFIG_SPI_CORRUPTS_UART
- config->gpio = CONFIG_UART_DISABLE_GPIO;
- config->port = CONFIG_SPI_CORRUPTS_UART_NR;
-#else
- config->gpio = -1;
-#endif
-}
-
-/*
- * Init the UART / SPI switch. This can be called before relocation so we must
- * not access BSS.
- */
-void gpio_early_init_uart(void)
-{
- struct spi_uart config;
-
- get_config(&config);
- if (config.gpio != -1) {
- /* Cannot provide a label prior to relocation */
- gpio_request(config.gpio, NULL);
- gpio_direction_output(config.gpio, 0);
- }
-}
-
-/*
- * Configure the UART / SPI switch.
- */
-void gpio_config_uart(void)
-{
- get_config(&local);
- if (local.gpio != -1) {
- gpio_direction_output(local.gpio, 0);
- switch_pos = SWITCH_UART;
- } else {
- /*
- * If we're here we don't have a SPI switch; go ahead and
- * enable the SPI now. We didn't in spi_init() so we wouldn't
- * kill the UART.
- */
- pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH);
- switch_pos = SWITCH_BOTH;
- }
-}
-
-static void spi_uart_switch(struct spi_uart *config,
- enum spi_uart_switch new_pos)
-{
- if (switch_pos == SWITCH_BOTH || new_pos == switch_pos)
- return;
-
- /* pre-delay, allow SPI/UART to settle, FIFO to empty, etc. */
- udelay(CONFIG_SPI_CORRUPTS_UART_DLY);
-
- /* We need to dynamically change the pinmux, shared w/UART RXD/CTS */
- pinmux_set_func(PINGRP_GMC, new_pos == SWITCH_SPI ?
- PMUX_FUNC_SFLASH : PMUX_FUNC_UARTD);
-
- /*
- * On Seaboard, MOSI/MISO are shared w/UART.
- * Use GPIO I3 (UART_DISABLE) to tristate UART during SPI activity.
- * Enable UART later (cs_deactivate) so we can use it for U-Boot comms.
- */
- gpio_direction_output(config->gpio, new_pos == SWITCH_SPI);
- switch_pos = new_pos;
-}
-
-void pinmux_select_uart(void)
-{
- spi_uart_switch(&local, SWITCH_UART);
-}
-
-void pinmux_select_spi(void)
-{
- spi_uart_switch(&local, SWITCH_SPI);
-}
diff --git a/board/nvidia/dalmore/dalmore.c b/board/nvidia/dalmore/dalmore.c
index 2020a5f..2c23a29 100644
--- a/board/nvidia/dalmore/dalmore.c
+++ b/board/nvidia/dalmore/dalmore.c
@@ -16,7 +16,12 @@
#include <common.h>
#include <asm/arch/pinmux.h>
+#include <asm/arch/gp_padctrl.h>
#include "pinmux-config-dalmore.h"
+#include <i2c.h>
+
+#define BAT_I2C_ADDRESS 0x48 /* TPS65090 charger */
+#define PMU_I2C_ADDRESS 0x58 /* TPS65913 PMU */
/*
* Routine: pinmux_init
@@ -32,4 +37,65 @@ void pinmux_init(void)
pinmux_config_table(unused_pins_lowpower,
ARRAY_SIZE(unused_pins_lowpower));
+
+ /* Initialize any non-default pad configs (APB_MISC_GP regs) */
+ padgrp_config_table(dalmore_padctrl, ARRAY_SIZE(dalmore_padctrl));
+}
+
+#if defined(CONFIG_TEGRA_MMC)
+/*
+ * Do I2C/PMU writes to bring up SD card bus power
+ *
+ */
+void board_sdmmc_voltage_init(void)
+{
+ uchar reg, data_buffer[1];
+ int ret;
+
+ ret = i2c_set_bus_num(0);/* PMU is on bus 0 */
+ if (ret)
+ printf("%s: i2c_set_bus_num returned %d\n", __func__, ret);
+
+ /* TPS65913: LDO9_VOLTAGE = 3.3V */
+ data_buffer[0] = 0x31;
+ reg = 0x61;
+
+ ret = i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1);
+ if (ret)
+ printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
+ __func__, reg, data_buffer[0], ret);
+
+ /* TPS65913: LDO9_CTRL = Active */
+ data_buffer[0] = 0x01;
+ reg = 0x60;
+
+ ret = i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1);
+ if (ret)
+ printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
+ __func__, reg, data_buffer[0], ret);
+
+ /* TPS65090: FET6_CTRL = enable output auto discharge, enable FET6 */
+ data_buffer[0] = 0x03;
+ reg = 0x14;
+
+ ret = i2c_write(BAT_I2C_ADDRESS, reg, 1, data_buffer, 1);
+ if (ret)
+ printf("%s: BAT i2c_write %02X<-%02X returned %d\n",
+ __func__, reg, data_buffer[0], ret);
+}
+
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the MMC muxes, power rails, etc.
+ */
+void pin_mux_mmc(void)
+{
+ /*
+ * NOTE: We don't do mmc-specific pin muxes here.
+ * They were done globally in pinmux_init().
+ */
+
+ /* Bring up the SDIO3 power rail */
+ board_sdmmc_voltage_init();
}
+#endif /* MMC */
diff --git a/board/nvidia/dalmore/pinmux-config-dalmore.h b/board/nvidia/dalmore/pinmux-config-dalmore.h
index 3ef6f4e..8c05a15 100644
--- a/board/nvidia/dalmore/pinmux-config-dalmore.h
+++ b/board/nvidia/dalmore/pinmux-config-dalmore.h
@@ -361,4 +361,10 @@ static struct pingroup_config tegra114_pinmux_set_nontristate[] = {
DEFAULT_PINMUX(SDMMC3_CD_N, SDMMC3, UP, NORMAL, INPUT),
};
+
+static struct padctrl_config dalmore_padctrl[] = {
+ /* (_padgrp, _slwf, _slwr, _drvup, _drvdn, _lpmd, _schmt, _hsm) */
+ DEFAULT_PADCFG(SDIO3, SDIOCFG_DRVUP_SLWF, SDIOCFG_DRVDN_SLWR, \
+ SDIOCFG_DRVUP, SDIOCFG_DRVDN, NONE, NONE, NONE),
+};
#endif /* PINMUX_CONFIG_COMMON_H */
diff --git a/board/nvidia/dts/tegra114-dalmore.dts b/board/nvidia/dts/tegra114-dalmore.dts
index 30cf1fb..86e9459 100644
--- a/board/nvidia/dts/tegra114-dalmore.dts
+++ b/board/nvidia/dts/tegra114-dalmore.dts
@@ -12,6 +12,8 @@
i2c2 = "/i2c@7000c400";
i2c3 = "/i2c@7000c500";
i2c4 = "/i2c@7000c700";
+ sdhci0 = "/sdhci@78000600";
+ sdhci1 = "/sdhci@78000400";
};
memory {
@@ -43,4 +45,20 @@
status = "okay";
clock-frequency = <400000>;
};
+
+ spi@7000da00 {
+ status = "okay";
+ spi-max-frequency = <25000000>;
+ };
+
+ sdhci@78000400 {
+ cd-gpios = <&gpio 170 1>; /* gpio PV2 */
+ bus-width = <4>;
+ status = "okay";
+ };
+
+ sdhci@78000600 {
+ bus-width = <8>;
+ status = "okay";
+ };
};
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index e581fdd..498e513 100644
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -31,7 +31,7 @@
#include <asm/gpio.h>
/* TODO: Remove this code when the SPI switch is working */
-#if !defined(CONFIG_SPI_UART_SWITCH) && (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
+#if (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
void gpio_early_init_uart(void)
{
/* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */
diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index 4418302..3560fcb 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -68,6 +68,11 @@ static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
.name = "W25Q80",
},
{
+ .id = 0x6016,
+ .nr_blocks = 512,
+ .name = "W25Q32DW",
+ },
+ {
.id = 0x6017,
.nr_blocks = 128,
.name = "W25Q64DW",
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index b8264df..46e8fa3 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -46,8 +46,10 @@ COBJS-$(CONFIG_OMAP3_SPI) += omap3_spi.o
COBJS-$(CONFIG_SOFT_SPI) += soft_spi.o
COBJS-$(CONFIG_SH_SPI) += sh_spi.o
COBJS-$(CONFIG_FSL_ESPI) += fsl_espi.o
-COBJS-$(CONFIG_TEGRA_SPI) += tegra_spi.o
-COBJS-$(CONFIG_TEGRA_SLINK) += tegra_slink.o
+COBJS-$(CONFIG_FDT_SPI) += fdt_spi.o
+COBJS-$(CONFIG_TEGRA20_SFLASH) += tegra20_sflash.o
+COBJS-$(CONFIG_TEGRA20_SLINK) += tegra20_slink.o
+COBJS-$(CONFIG_TEGRA114_SPI) += tegra114_spi.o
COBJS-$(CONFIG_XILINX_SPI) += xilinx_spi.o
COBJS := $(COBJS-y)
diff --git a/drivers/spi/fdt_spi.c b/drivers/spi/fdt_spi.c
new file mode 100644
index 0000000..58f139a
--- /dev/null
+++ b/drivers/spi/fdt_spi.c
@@ -0,0 +1,186 @@
+/*
+ * Common fdt based SPI driver front end
+ *
+ * Copyright (c) 2013 NVIDIA Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/clock.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra20/tegra20_sflash.h>
+#include <asm/arch-tegra20/tegra20_slink.h>
+#include <asm/arch-tegra114/tegra114_spi.h>
+#include <spi.h>
+#include <fdtdec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct fdt_spi_driver {
+ int compat;
+ int max_ctrls;
+ int (*init)(int *node_list, int count);
+ int (*claim_bus)(struct spi_slave *slave);
+ int (*release_bus)(struct spi_slave *slave);
+ int (*cs_is_valid)(unsigned int bus, unsigned int cs);
+ struct spi_slave *(*setup_slave)(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode);
+ void (*free_slave)(struct spi_slave *slave);
+ void (*cs_activate)(struct spi_slave *slave);
+ void (*cs_deactivate)(struct spi_slave *slave);
+ int (*xfer)(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags);
+};
+
+static struct fdt_spi_driver fdt_spi_drivers[] = {
+#ifdef CONFIG_TEGRA20_SFLASH
+ {
+ .compat = COMPAT_NVIDIA_TEGRA20_SFLASH,
+ .max_ctrls = 1,
+ .init = tegra20_spi_init,
+ .claim_bus = tegra20_spi_claim_bus,
+ .cs_is_valid = tegra20_spi_cs_is_valid,
+ .setup_slave = tegra20_spi_setup_slave,
+ .free_slave = tegra20_spi_free_slave,
+ .cs_activate = tegra20_spi_cs_activate,
+ .cs_deactivate = tegra20_spi_cs_deactivate,
+ .xfer = tegra20_spi_xfer,
+ },
+#endif
+#ifdef CONFIG_TEGRA20_SLINK
+ {
+ .compat = COMPAT_NVIDIA_TEGRA20_SLINK,
+ .max_ctrls = CONFIG_TEGRA_SLINK_CTRLS,
+ .init = tegra30_spi_init,
+ .claim_bus = tegra30_spi_claim_bus,
+ .cs_is_valid = tegra30_spi_cs_is_valid,
+ .setup_slave = tegra30_spi_setup_slave,
+ .free_slave = tegra30_spi_free_slave,
+ .cs_activate = tegra30_spi_cs_activate,
+ .cs_deactivate = tegra30_spi_cs_deactivate,
+ .xfer = tegra30_spi_xfer,
+ },
+#endif
+#ifdef CONFIG_TEGRA114_SPI
+ {
+ .compat = COMPAT_NVIDIA_TEGRA114_SPI,
+ .max_ctrls = CONFIG_TEGRA114_SPI_CTRLS,
+ .init = tegra114_spi_init,
+ .claim_bus = tegra114_spi_claim_bus,
+ .cs_is_valid = tegra114_spi_cs_is_valid,
+ .setup_slave = tegra114_spi_setup_slave,
+ .free_slave = tegra114_spi_free_slave,
+ .cs_activate = tegra114_spi_cs_activate,
+ .cs_deactivate = tegra114_spi_cs_deactivate,
+ .xfer = tegra114_spi_xfer,
+ },
+#endif
+};
+
+static struct fdt_spi_driver *driver;
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ if (!driver)
+ return 0;
+ else if (!driver->cs_is_valid)
+ return 1;
+ else
+ return driver->cs_is_valid(bus, cs);
+}
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ if (!driver || !driver->setup_slave)
+ return NULL;
+
+ return driver->setup_slave(bus, cs, max_hz, mode);
+}
+
+void spi_free_slave(struct spi_slave *slave)
+{
+ if (driver && driver->free_slave)
+ return driver->free_slave(slave);
+}
+
+static int spi_init_driver(struct fdt_spi_driver *driver)
+{
+ int count;
+ int node_list[driver->max_ctrls];
+
+ count = fdtdec_find_aliases_for_id(gd->fdt_blob, "spi",
+ driver->compat,
+ node_list,
+ driver->max_ctrls);
+ return driver->init(node_list, count);
+}
+
+void spi_init(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(fdt_spi_drivers); i++) {
+ driver = &fdt_spi_drivers[i];
+ if (!spi_init_driver(driver))
+ break;
+ }
+ if (i == ARRAY_SIZE(fdt_spi_drivers))
+ driver = NULL;
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
+ if (!driver)
+ return 1;
+ if (!driver->claim_bus)
+ return 0;
+
+ return driver->claim_bus(slave);
+}
+
+void spi_release_bus(struct spi_slave *slave)
+{
+ if (driver && driver->release_bus)
+ driver->release_bus(slave);
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ if (driver && driver->cs_activate)
+ driver->cs_activate(slave);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ if (driver && driver->cs_deactivate)
+ driver->cs_deactivate(slave);
+}
+
+int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags)
+{
+ if (!driver || !driver->xfer)
+ return -1;
+
+ return driver->xfer(slave, bitlen, data_out, data_in, flags);
+}
diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c
new file mode 100644
index 0000000..b11a0a1
--- /dev/null
+++ b/drivers/spi/tegra114_spi.c
@@ -0,0 +1,405 @@
+/*
+ * NVIDIA Tegra SPI controller (T114 and later)
+ *
+ * Copyright (c) 2010-2013 NVIDIA Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/clock.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra114/tegra114_spi.h>
+#include <spi.h>
+#include <fdtdec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* COMMAND1 */
+#define SPI_CMD1_GO (1 << 31)
+#define SPI_CMD1_M_S (1 << 30)
+#define SPI_CMD1_MODE_MASK 0x3
+#define SPI_CMD1_MODE_SHIFT 28
+#define SPI_CMD1_CS_SEL_MASK 0x3
+#define SPI_CMD1_CS_SEL_SHIFT 26
+#define SPI_CMD1_CS_POL_INACTIVE3 (1 << 25)
+#define SPI_CMD1_CS_POL_INACTIVE2 (1 << 24)
+#define SPI_CMD1_CS_POL_INACTIVE1 (1 << 23)
+#define SPI_CMD1_CS_POL_INACTIVE0 (1 << 22)
+#define SPI_CMD1_CS_SW_HW (1 << 21)
+#define SPI_CMD1_CS_SW_VAL (1 << 20)
+#define SPI_CMD1_IDLE_SDA_MASK 0x3
+#define SPI_CMD1_IDLE_SDA_SHIFT 18
+#define SPI_CMD1_BIDIR (1 << 17)
+#define SPI_CMD1_LSBI_FE (1 << 16)
+#define SPI_CMD1_LSBY_FE (1 << 15)
+#define SPI_CMD1_BOTH_EN_BIT (1 << 14)
+#define SPI_CMD1_BOTH_EN_BYTE (1 << 13)
+#define SPI_CMD1_RX_EN (1 << 12)
+#define SPI_CMD1_TX_EN (1 << 11)
+#define SPI_CMD1_PACKED (1 << 5)
+#define SPI_CMD1_BIT_LEN_MASK 0x1F
+#define SPI_CMD1_BIT_LEN_SHIFT 0
+
+/* COMMAND2 */
+#define SPI_CMD2_TX_CLK_TAP_DELAY (1 << 6)
+#define SPI_CMD2_TX_CLK_TAP_DELAY_MASK (0x3F << 6)
+#define SPI_CMD2_RX_CLK_TAP_DELAY (1 << 0)
+#define SPI_CMD2_RX_CLK_TAP_DELAY_MASK (0x3F << 0)
+
+/* TRANSFER STATUS */
+#define SPI_XFER_STS_RDY (1 << 30)
+
+/* FIFO STATUS */
+#define SPI_FIFO_STS_CS_INACTIVE (1 << 31)
+#define SPI_FIFO_STS_FRAME_END (1 << 30)
+#define SPI_FIFO_STS_RX_FIFO_FLUSH (1 << 15)
+#define SPI_FIFO_STS_TX_FIFO_FLUSH (1 << 14)
+#define SPI_FIFO_STS_ERR (1 << 8)
+#define SPI_FIFO_STS_TX_FIFO_OVF (1 << 7)
+#define SPI_FIFO_STS_TX_FIFO_UNR (1 << 6)
+#define SPI_FIFO_STS_RX_FIFO_OVF (1 << 5)
+#define SPI_FIFO_STS_RX_FIFO_UNR (1 << 4)
+#define SPI_FIFO_STS_TX_FIFO_FULL (1 << 3)
+#define SPI_FIFO_STS_TX_FIFO_EMPTY (1 << 2)
+#define SPI_FIFO_STS_RX_FIFO_FULL (1 << 1)
+#define SPI_FIFO_STS_RX_FIFO_EMPTY (1 << 0)
+
+#define SPI_TIMEOUT 1000
+#define TEGRA_SPI_MAX_FREQ 52000000
+
+struct spi_regs {
+ u32 command1; /* 000:SPI_COMMAND1 register */
+ u32 command2; /* 004:SPI_COMMAND2 register */
+ u32 timing1; /* 008:SPI_CS_TIM1 register */
+ u32 timing2; /* 00c:SPI_CS_TIM2 register */
+ u32 xfer_status;/* 010:SPI_TRANS_STATUS register */
+ u32 fifo_status;/* 014:SPI_FIFO_STATUS register */
+ u32 tx_data; /* 018:SPI_TX_DATA register */
+ u32 rx_data; /* 01c:SPI_RX_DATA register */
+ u32 dma_ctl; /* 020:SPI_DMA_CTL register */
+ u32 dma_blk; /* 024:SPI_DMA_BLK register */
+ u32 rsvd[56]; /* 028-107 reserved */
+ u32 tx_fifo; /* 108:SPI_FIFO1 register */
+ u32 rsvd2[31]; /* 10c-187 reserved */
+ u32 rx_fifo; /* 188:SPI_FIFO2 register */
+ u32 spare_ctl; /* 18c:SPI_SPARE_CTRL register */
+};
+
+struct tegra_spi_ctrl {
+ struct spi_regs *regs;
+ unsigned int freq;
+ unsigned int mode;
+ int periph_id;
+ int valid;
+};
+
+struct tegra_spi_slave {
+ struct spi_slave slave;
+ struct tegra_spi_ctrl *ctrl;
+};
+
+static struct tegra_spi_ctrl spi_ctrls[CONFIG_TEGRA114_SPI_CTRLS];
+
+static inline struct tegra_spi_slave *to_tegra_spi(struct spi_slave *slave)
+{
+ return container_of(slave, struct tegra_spi_slave, slave);
+}
+
+int tegra114_spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ if (bus >= CONFIG_TEGRA114_SPI_CTRLS || cs > 3 || !spi_ctrls[bus].valid)
+ return 0;
+ else
+ return 1;
+}
+
+struct spi_slave *tegra114_spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ struct tegra_spi_slave *spi;
+
+ debug("%s: bus: %u, cs: %u, max_hz: %u, mode: %u\n", __func__,
+ bus, cs, max_hz, mode);
+
+ if (!spi_cs_is_valid(bus, cs)) {
+ printf("SPI error: unsupported bus %d / chip select %d\n",
+ bus, cs);
+ return NULL;
+ }
+
+ if (max_hz > TEGRA_SPI_MAX_FREQ) {
+ printf("SPI error: unsupported frequency %d Hz. Max frequency"
+ " is %d Hz\n", max_hz, TEGRA_SPI_MAX_FREQ);
+ return NULL;
+ }
+
+ spi = malloc(sizeof(struct tegra_spi_slave));
+ if (!spi) {
+ printf("SPI error: malloc of SPI structure failed\n");
+ return NULL;
+ }
+ spi->slave.bus = bus;
+ spi->slave.cs = cs;
+ spi->ctrl = &spi_ctrls[bus];
+ if (!spi->ctrl) {
+ printf("SPI error: could not find controller for bus %d\n",
+ bus);
+ return NULL;
+ }
+
+ if (max_hz < spi->ctrl->freq) {
+ debug("%s: limiting frequency from %u to %u\n", __func__,
+ spi->ctrl->freq, max_hz);
+ spi->ctrl->freq = max_hz;
+ }
+ spi->ctrl->mode = mode;
+
+ return &spi->slave;
+}
+
+void tegra114_spi_free_slave(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+
+ free(spi);
+}
+
+int tegra114_spi_init(int *node_list, int count)
+{
+ struct tegra_spi_ctrl *ctrl;
+ int i;
+ int node = 0;
+ int found = 0;
+
+ for (i = 0; i < count; i++) {
+ ctrl = &spi_ctrls[i];
+ node = node_list[i];
+
+ ctrl->regs = (struct spi_regs *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
+ if ((fdt_addr_t)ctrl->regs == FDT_ADDR_T_NONE) {
+ debug("%s: no spi register found\n", __func__);
+ continue;
+ }
+ ctrl->freq = fdtdec_get_int(gd->fdt_blob, node,
+ "spi-max-frequency", 0);
+ if (!ctrl->freq) {
+ debug("%s: no spi max frequency found\n", __func__);
+ continue;
+ }
+
+ ctrl->periph_id = clock_decode_periph_id(gd->fdt_blob, node);
+ if (ctrl->periph_id == PERIPH_ID_NONE) {
+ debug("%s: could not decode periph id\n", __func__);
+ continue;
+ }
+ ctrl->valid = 1;
+ found = 1;
+
+ debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
+ __func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
+ }
+
+ return !found;
+}
+
+int tegra114_spi_claim_bus(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct spi_regs *regs = spi->ctrl->regs;
+
+ /* Change SPI clock to correct frequency, PLLP_OUT0 source */
+ clock_start_periph_pll(spi->ctrl->periph_id, CLOCK_ID_PERIPH,
+ spi->ctrl->freq);
+
+ /* Clear stale status here */
+ setbits_le32(&regs->fifo_status,
+ SPI_FIFO_STS_ERR |
+ SPI_FIFO_STS_TX_FIFO_OVF |
+ SPI_FIFO_STS_TX_FIFO_UNR |
+ SPI_FIFO_STS_RX_FIFO_OVF |
+ SPI_FIFO_STS_RX_FIFO_UNR |
+ SPI_FIFO_STS_TX_FIFO_FULL |
+ SPI_FIFO_STS_TX_FIFO_EMPTY |
+ SPI_FIFO_STS_RX_FIFO_FULL |
+ SPI_FIFO_STS_RX_FIFO_EMPTY);
+ debug("%s: FIFO STATUS = %08x\n", __func__, readl(&regs->fifo_status));
+
+ /* Set master mode and sw controlled CS */
+ setbits_le32(&regs->command1, SPI_CMD1_M_S | SPI_CMD1_CS_SW_HW |
+ (spi->ctrl->mode << SPI_CMD1_MODE_SHIFT));
+ debug("%s: COMMAND1 = %08x\n", __func__, readl(&regs->command1));
+
+ return 0;
+}
+
+void tegra114_spi_cs_activate(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct spi_regs *regs = spi->ctrl->regs;
+
+ clrbits_le32(&regs->command1, SPI_CMD1_CS_SW_VAL);
+}
+
+void tegra114_spi_cs_deactivate(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct spi_regs *regs = spi->ctrl->regs;
+
+ setbits_le32(&regs->command1, SPI_CMD1_CS_SW_VAL);
+}
+
+int tegra114_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct spi_regs *regs = spi->ctrl->regs;
+ u32 reg, tmpdout, tmpdin = 0;
+ const u8 *dout = data_out;
+ u8 *din = data_in;
+ int num_bytes;
+ int ret;
+
+ debug("%s: slave %u:%u dout %p din %p bitlen %u\n",
+ __func__, slave->bus, slave->cs, dout, din, bitlen);
+ if (bitlen % 8)
+ return -1;
+ num_bytes = bitlen / 8;
+
+ ret = 0;
+
+ /* clear all error status bits */
+ reg = readl(&regs->fifo_status);
+ writel(reg, &regs->fifo_status);
+
+ /* clear ready bit */
+ setbits_le32(&regs->xfer_status, SPI_XFER_STS_RDY);
+
+ clrsetbits_le32(&regs->command1, SPI_CMD1_CS_SW_VAL,
+ SPI_CMD1_RX_EN | SPI_CMD1_TX_EN | SPI_CMD1_LSBY_FE |
+ (slave->cs << SPI_CMD1_CS_SEL_SHIFT));
+
+ /* set xfer size to 1 block (32 bits) */
+ writel(0, &regs->dma_blk);
+
+ if (flags & SPI_XFER_BEGIN)
+ spi_cs_activate(slave);
+
+ /* handle data in 32-bit chunks */
+ while (num_bytes > 0) {
+ int bytes;
+ int is_read = 0;
+ int tm, i;
+
+ tmpdout = 0;
+ bytes = (num_bytes > 4) ? 4 : num_bytes;
+
+ if (dout != NULL) {
+ for (i = 0; i < bytes; ++i)
+ tmpdout = (tmpdout << 8) | dout[i];
+ dout += bytes;
+ }
+
+ num_bytes -= bytes;
+
+ clrsetbits_le32(&regs->command1,
+ SPI_CMD1_BIT_LEN_MASK << SPI_CMD1_BIT_LEN_SHIFT,
+ (bytes * 8 - 1) << SPI_CMD1_BIT_LEN_SHIFT);
+ writel(tmpdout, &regs->tx_fifo);
+ setbits_le32(&regs->command1, SPI_CMD1_GO);
+
+ /*
+ * Wait for SPI transmit FIFO to empty, or to time out.
+ * The RX FIFO status will be read and cleared last
+ */
+ for (tm = 0, is_read = 0; tm < SPI_TIMEOUT; ++tm) {
+ u32 fifo_status, xfer_status;
+
+ fifo_status = readl(&regs->fifo_status);
+
+ /* We can exit when we've had both RX and TX activity */
+ if (is_read &&
+ (fifo_status & SPI_FIFO_STS_TX_FIFO_EMPTY))
+ break;
+
+ xfer_status = readl(&regs->xfer_status);
+ if (!(xfer_status & SPI_XFER_STS_RDY))
+ continue;
+
+ if (fifo_status & SPI_FIFO_STS_ERR) {
+ debug("%s: got a fifo error: ", __func__);
+ if (fifo_status & SPI_FIFO_STS_TX_FIFO_OVF)
+ debug("tx FIFO overflow ");
+ if (fifo_status & SPI_FIFO_STS_TX_FIFO_UNR)
+ debug("tx FIFO underrun ");
+ if (fifo_status & SPI_FIFO_STS_RX_FIFO_OVF)
+ debug("rx FIFO overflow ");
+ if (fifo_status & SPI_FIFO_STS_RX_FIFO_UNR)
+ debug("rx FIFO underrun ");
+ if (fifo_status & SPI_FIFO_STS_TX_FIFO_FULL)
+ debug("tx FIFO full ");
+ if (fifo_status & SPI_FIFO_STS_TX_FIFO_EMPTY)
+ debug("tx FIFO empty ");
+ if (fifo_status & SPI_FIFO_STS_RX_FIFO_FULL)
+ debug("rx FIFO full ");
+ if (fifo_status & SPI_FIFO_STS_RX_FIFO_EMPTY)
+ debug("rx FIFO empty ");
+ debug("\n");
+ break;
+ }
+
+ if (!(fifo_status & SPI_FIFO_STS_RX_FIFO_EMPTY)) {
+ tmpdin = readl(&regs->rx_fifo);
+ is_read = 1;
+
+ /* swap bytes read in */
+ if (din != NULL) {
+ for (i = bytes - 1; i >= 0; --i) {
+ din[i] = tmpdin & 0xff;
+ tmpdin >>= 8;
+ }
+ din += bytes;
+ }
+ }
+ }
+
+ if (tm >= SPI_TIMEOUT)
+ ret = tm;
+
+ /* clear ACK RDY, etc. bits */
+ writel(readl(&regs->fifo_status), &regs->fifo_status);
+ }
+
+ if (flags & SPI_XFER_END)
+ spi_cs_deactivate(slave);
+
+ debug("%s: transfer ended. Value=%08x, fifo_status = %08x\n",
+ __func__, tmpdin, readl(&regs->fifo_status));
+
+ if (ret) {
+ printf("%s: timeout during SPI transfer, tm %d\n",
+ __func__, ret);
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/drivers/spi/tegra_spi.c b/drivers/spi/tegra20_sflash.c
index ce19095..a4e6c9a 100644
--- a/drivers/spi/tegra_spi.c
+++ b/drivers/spi/tegra20_sflash.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010-2012 NVIDIA Corporation
+ * Copyright (c) 2010-2013 NVIDIA Corporation
* With help from the mpc8xxx SPI driver
* With more help from omap3_spi SPI driver
*
@@ -28,34 +28,80 @@
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch/pinmux.h>
-#include <asm/arch/uart-spi-switch.h>
#include <asm/arch-tegra/clk_rst.h>
-#include <asm/arch-tegra/tegra_spi.h>
+#include <asm/arch-tegra20/tegra20_sflash.h>
#include <spi.h>
#include <fdtdec.h>
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_SPI_CORRUPTS_UART)
- #define corrupt_delay() udelay(CONFIG_SPI_CORRUPTS_UART_DLY);
-#else
- #define corrupt_delay()
-#endif
+#define SPI_CMD_GO (1 << 30)
+#define SPI_CMD_ACTIVE_SCLK_SHIFT 26
+#define SPI_CMD_ACTIVE_SCLK_MASK (3 << SPI_CMD_ACTIVE_SCLK_SHIFT)
+#define SPI_CMD_CK_SDA (1 << 21)
+#define SPI_CMD_ACTIVE_SDA_SHIFT 18
+#define SPI_CMD_ACTIVE_SDA_MASK (3 << SPI_CMD_ACTIVE_SDA_SHIFT)
+#define SPI_CMD_CS_POL (1 << 16)
+#define SPI_CMD_TXEN (1 << 15)
+#define SPI_CMD_RXEN (1 << 14)
+#define SPI_CMD_CS_VAL (1 << 13)
+#define SPI_CMD_CS_SOFT (1 << 12)
+#define SPI_CMD_CS_DELAY (1 << 9)
+#define SPI_CMD_CS3_EN (1 << 8)
+#define SPI_CMD_CS2_EN (1 << 7)
+#define SPI_CMD_CS1_EN (1 << 6)
+#define SPI_CMD_CS0_EN (1 << 5)
+#define SPI_CMD_BIT_LENGTH (1 << 4)
+#define SPI_CMD_BIT_LENGTH_MASK 0x0000001F
+
+#define SPI_STAT_BSY (1 << 31)
+#define SPI_STAT_RDY (1 << 30)
+#define SPI_STAT_RXF_FLUSH (1 << 29)
+#define SPI_STAT_TXF_FLUSH (1 << 28)
+#define SPI_STAT_RXF_UNR (1 << 27)
+#define SPI_STAT_TXF_OVF (1 << 26)
+#define SPI_STAT_RXF_EMPTY (1 << 25)
+#define SPI_STAT_RXF_FULL (1 << 24)
+#define SPI_STAT_TXF_EMPTY (1 << 23)
+#define SPI_STAT_TXF_FULL (1 << 22)
+#define SPI_STAT_SEL_TXRX_N (1 << 16)
+#define SPI_STAT_CUR_BLKCNT (1 << 15)
+
+#define SPI_TIMEOUT 1000
+#define TEGRA_SPI_MAX_FREQ 52000000
+
+struct spi_regs {
+ u32 command; /* SPI_COMMAND_0 register */
+ u32 status; /* SPI_STATUS_0 register */
+ u32 rx_cmp; /* SPI_RX_CMP_0 register */
+ u32 dma_ctl; /* SPI_DMA_CTL_0 register */
+ u32 tx_fifo; /* SPI_TX_FIFO_0 register */
+ u32 rsvd[3]; /* offsets 0x14 to 0x1F reserved */
+ u32 rx_fifo; /* SPI_RX_FIFO_0 register */
+};
-struct tegra_spi_slave {
- struct spi_slave slave;
- struct spi_tegra *regs;
+struct tegra_spi_ctrl {
+ struct spi_regs *regs;
unsigned int freq;
unsigned int mode;
int periph_id;
+ int valid;
};
+struct tegra_spi_slave {
+ struct spi_slave slave;
+ struct tegra_spi_ctrl *ctrl;
+};
+
+/* tegra20 only supports one SFLASH controller */
+static struct tegra_spi_ctrl spi_ctrls[1];
+
static inline struct tegra_spi_slave *to_tegra_spi(struct spi_slave *slave)
{
return container_of(slave, struct tegra_spi_slave, slave);
}
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+int tegra20_spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
/* Tegra20 SPI-Flash - only 1 device ('bus/cs') */
if (bus != 0 || cs != 0)
@@ -64,8 +110,8 @@ int spi_cs_is_valid(unsigned int bus, unsigned int cs)
return 1;
}
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
+struct spi_slave *tegra20_spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
{
struct tegra_spi_slave *spi;
@@ -88,86 +134,93 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
}
spi->slave.bus = bus;
spi->slave.cs = cs;
-#ifdef CONFIG_OF_CONTROL
- int node = fdtdec_next_compatible(gd->fdt_blob, 0,
- COMPAT_NVIDIA_TEGRA20_SFLASH);
- if (node < 0) {
- debug("%s: cannot locate sflash node\n", __func__);
+ spi->ctrl = &spi_ctrls[bus];
+ if (!spi->ctrl) {
+ printf("SPI error: could not find controller for bus %d\n",
+ bus);
return NULL;
}
- if (!fdtdec_get_is_enabled(gd->fdt_blob, node)) {
- debug("%s: sflash is disabled\n", __func__);
- return NULL;
- }
- spi->regs = (struct spi_tegra *)fdtdec_get_addr(gd->fdt_blob,
- node, "reg");
- if ((fdt_addr_t)spi->regs == FDT_ADDR_T_NONE) {
- debug("%s: no sflash register found\n", __func__);
- return NULL;
- }
- spi->freq = fdtdec_get_int(gd->fdt_blob, node, "spi-max-frequency", 0);
- if (!spi->freq) {
- debug("%s: no sflash max frequency found\n", __func__);
- return NULL;
- }
- spi->periph_id = clock_decode_periph_id(gd->fdt_blob, node);
- if (spi->periph_id == PERIPH_ID_NONE) {
- debug("%s: could not decode periph id\n", __func__);
- return NULL;
- }
-#else
- spi->regs = (struct spi_tegra *)NV_PA_SPI_BASE;
- spi->freq = TEGRA_SPI_MAX_FREQ;
- spi->periph_id = PERIPH_ID_SPI1;
-#endif
- if (max_hz < spi->freq) {
+
+ if (max_hz < spi->ctrl->freq) {
debug("%s: limiting frequency from %u to %u\n", __func__,
- spi->freq, max_hz);
- spi->freq = max_hz;
+ spi->ctrl->freq, max_hz);
+ spi->ctrl->freq = max_hz;
}
- debug("%s: controller initialized at %p, freq = %u, periph_id = %d\n",
- __func__, spi->regs, spi->freq, spi->periph_id);
- spi->mode = mode;
+ spi->ctrl->mode = mode;
return &spi->slave;
}
-void spi_free_slave(struct spi_slave *slave)
+void tegra20_spi_free_slave(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
free(spi);
}
-void spi_init(void)
+int tegra20_spi_init(int *node_list, int count)
{
- /* do nothing */
+ struct tegra_spi_ctrl *ctrl;
+ int i;
+ int node = 0;
+ int found = 0;
+
+ for (i = 0; i < count; i++) {
+ ctrl = &spi_ctrls[i];
+ node = node_list[i];
+
+ ctrl->regs = (struct spi_regs *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
+ if ((fdt_addr_t)ctrl->regs == FDT_ADDR_T_NONE) {
+ debug("%s: no slink register found\n", __func__);
+ continue;
+ }
+ ctrl->freq = fdtdec_get_int(gd->fdt_blob, node,
+ "spi-max-frequency", 0);
+ if (!ctrl->freq) {
+ debug("%s: no slink max frequency found\n", __func__);
+ continue;
+ }
+
+ ctrl->periph_id = clock_decode_periph_id(gd->fdt_blob, node);
+ if (ctrl->periph_id == PERIPH_ID_NONE) {
+ debug("%s: could not decode periph id\n", __func__);
+ continue;
+ }
+ ctrl->valid = 1;
+ found = 1;
+
+ debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
+ __func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
+ }
+ return !found;
}
-int spi_claim_bus(struct spi_slave *slave)
+int tegra20_spi_claim_bus(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct spi_tegra *regs = spi->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
u32 reg;
/* Change SPI clock to correct frequency, PLLP_OUT0 source */
- clock_start_periph_pll(spi->periph_id, CLOCK_ID_PERIPH, spi->freq);
+ clock_start_periph_pll(spi->ctrl->periph_id, CLOCK_ID_PERIPH,
+ spi->ctrl->freq);
/* Clear stale status here */
reg = SPI_STAT_RDY | SPI_STAT_RXF_FLUSH | SPI_STAT_TXF_FLUSH | \
SPI_STAT_RXF_UNR | SPI_STAT_TXF_OVF;
writel(reg, &regs->status);
- debug("spi_init: STATUS = %08x\n", readl(&regs->status));
+ debug("%s: STATUS = %08x\n", __func__, readl(&regs->status));
/*
* Use sw-controlled CS, so we can clock in data after ReadID, etc.
*/
- reg = (spi->mode & 1) << SPI_CMD_ACTIVE_SDA_SHIFT;
- if (spi->mode & 2)
+ reg = (spi->ctrl->mode & 1) << SPI_CMD_ACTIVE_SDA_SHIFT;
+ if (spi->ctrl->mode & 2)
reg |= 1 << SPI_CMD_ACTIVE_SCLK_SHIFT;
clrsetbits_le32(&regs->command, SPI_CMD_ACTIVE_SCLK_MASK |
SPI_CMD_ACTIVE_SDA_MASK, SPI_CMD_CS_SOFT | reg);
- debug("spi_init: COMMAND = %08x\n", readl(&regs->command));
+ debug("%s: COMMAND = %08x\n", __func__, readl(&regs->command));
/*
* SPI pins on Tegra20 are muxed - change pinmux later due to UART
@@ -175,58 +228,34 @@ int spi_claim_bus(struct spi_slave *slave)
*/
pinmux_set_func(PINGRP_GMD, PMUX_FUNC_SFLASH);
pinmux_tristate_disable(PINGRP_LSPI);
+ pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH);
-#ifndef CONFIG_SPI_UART_SWITCH
- /*
- * NOTE:
- * Only set PinMux bits 3:2 to SPI here on boards that don't have the
- * SPI UART switch or subsequent UART data won't go out! See
- * spi_uart_switch().
- */
- /* TODO: pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH); */
-#endif
return 0;
}
-void spi_release_bus(struct spi_slave *slave)
-{
- /*
- * We can't release UART_DISABLE and set pinmux to UART4 here since
- * some code (e,g, spi_flash_probe) uses printf() while the SPI
- * bus is held. That is arguably bad, but it has the advantage of
- * already being in the source tree.
- */
-}
-
-void spi_cs_activate(struct spi_slave *slave)
+void tegra20_spi_cs_activate(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
-
- pinmux_select_spi();
+ struct spi_regs *regs = spi->ctrl->regs;
/* CS is negated on Tegra, so drive a 1 to get a 0 */
- setbits_le32(&spi->regs->command, SPI_CMD_CS_VAL);
-
- corrupt_delay(); /* Let UART settle */
+ setbits_le32(&regs->command, SPI_CMD_CS_VAL);
}
-void spi_cs_deactivate(struct spi_slave *slave)
+void tegra20_spi_cs_deactivate(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
-
- pinmux_select_uart();
+ struct spi_regs *regs = spi->ctrl->regs;
/* CS is negated on Tegra, so drive a 0 to get a 1 */
- clrbits_le32(&spi->regs->command, SPI_CMD_CS_VAL);
-
- corrupt_delay(); /* Let SPI settle */
+ clrbits_le32(&regs->command, SPI_CMD_CS_VAL);
}
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+int tegra20_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
const void *data_out, void *data_in, unsigned long flags)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct spi_tegra *regs = spi->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
u32 reg, tmpdout, tmpdin = 0;
const u8 *dout = data_out;
u8 *din = data_in;
diff --git a/drivers/spi/tegra_slink.c b/drivers/spi/tegra20_slink.c
index 2c41fab..2ef2eb8 100644
--- a/drivers/spi/tegra_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -27,14 +27,68 @@
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch-tegra/clk_rst.h>
-#include <asm/arch-tegra/tegra_slink.h>
+#include <asm/arch-tegra20/tegra20_slink.h>
#include <spi.h>
#include <fdtdec.h>
DECLARE_GLOBAL_DATA_PTR;
+/* COMMAND */
+#define SLINK_CMD_ENB (1 << 31)
+#define SLINK_CMD_GO (1 << 30)
+#define SLINK_CMD_M_S (1 << 28)
+#define SLINK_CMD_CK_SDA (1 << 21)
+#define SLINK_CMD_CS_POL (1 << 13)
+#define SLINK_CMD_CS_VAL (1 << 12)
+#define SLINK_CMD_CS_SOFT (1 << 11)
+#define SLINK_CMD_BIT_LENGTH (1 << 4)
+#define SLINK_CMD_BIT_LENGTH_MASK 0x0000001F
+/* COMMAND2 */
+#define SLINK_CMD2_TXEN (1 << 30)
+#define SLINK_CMD2_RXEN (1 << 31)
+#define SLINK_CMD2_SS_EN (1 << 18)
+#define SLINK_CMD2_SS_EN_SHIFT 18
+#define SLINK_CMD2_SS_EN_MASK 0x000C0000
+#define SLINK_CMD2_CS_ACTIVE_BETWEEN (1 << 17)
+/* STATUS */
+#define SLINK_STAT_BSY (1 << 31)
+#define SLINK_STAT_RDY (1 << 30)
+#define SLINK_STAT_ERR (1 << 29)
+#define SLINK_STAT_RXF_FLUSH (1 << 27)
+#define SLINK_STAT_TXF_FLUSH (1 << 26)
+#define SLINK_STAT_RXF_OVF (1 << 25)
+#define SLINK_STAT_TXF_UNR (1 << 24)
+#define SLINK_STAT_RXF_EMPTY (1 << 23)
+#define SLINK_STAT_RXF_FULL (1 << 22)
+#define SLINK_STAT_TXF_EMPTY (1 << 21)
+#define SLINK_STAT_TXF_FULL (1 << 20)
+#define SLINK_STAT_TXF_OVF (1 << 19)
+#define SLINK_STAT_RXF_UNR (1 << 18)
+#define SLINK_STAT_CUR_BLKCNT (1 << 15)
+/* STATUS2 */
+#define SLINK_STAT2_RXF_FULL_CNT (1 << 16)
+#define SLINK_STAT2_TXF_FULL_CNT (1 << 0)
+
+#define SPI_TIMEOUT 1000
+#define TEGRA_SPI_MAX_FREQ 52000000
+
+struct spi_regs {
+ u32 command; /* SLINK_COMMAND_0 register */
+ u32 command2; /* SLINK_COMMAND2_0 reg */
+ u32 status; /* SLINK_STATUS_0 register */
+ u32 reserved; /* Reserved offset 0C */
+ u32 mas_data; /* SLINK_MAS_DATA_0 reg */
+ u32 slav_data; /* SLINK_SLAVE_DATA_0 reg */
+ u32 dma_ctl; /* SLINK_DMA_CTL_0 register */
+ u32 status2; /* SLINK_STATUS2_0 reg */
+ u32 rsvd[56]; /* 0x20 to 0xFF reserved */
+ u32 tx_fifo; /* SLINK_TX_FIFO_0 reg off 100h */
+ u32 rsvd2[31]; /* 0x104 to 0x17F reserved */
+ u32 rx_fifo; /* SLINK_RX_FIFO_0 reg off 180h */
+};
+
struct tegra_spi_ctrl {
- struct slink_tegra *regs;
+ struct spi_regs *regs;
unsigned int freq;
unsigned int mode;
int periph_id;
@@ -53,7 +107,7 @@ static inline struct tegra_spi_slave *to_tegra_spi(struct spi_slave *slave)
return container_of(slave, struct tegra_spi_slave, slave);
}
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+int tegra30_spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
if (bus >= CONFIG_TEGRA_SLINK_CTRLS || cs > 3 || !spi_ctrls[bus].valid)
return 0;
@@ -61,7 +115,7 @@ int spi_cs_is_valid(unsigned int bus, unsigned int cs)
return 1;
}
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+struct spi_slave *tegra30_spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode)
{
struct tegra_spi_slave *spi;
@@ -105,32 +159,26 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
return &spi->slave;
}
-void spi_free_slave(struct spi_slave *slave)
+void tegra30_spi_free_slave(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
free(spi);
}
-void spi_init(void)
+int tegra30_spi_init(int *node_list, int count)
{
struct tegra_spi_ctrl *ctrl;
int i;
-#ifdef CONFIG_OF_CONTROL
int node = 0;
- int count;
- int node_list[CONFIG_TEGRA_SLINK_CTRLS];
+ int found = 0;
- count = fdtdec_find_aliases_for_id(gd->fdt_blob, "spi",
- COMPAT_NVIDIA_TEGRA20_SLINK,
- node_list,
- CONFIG_TEGRA_SLINK_CTRLS);
for (i = 0; i < count; i++) {
ctrl = &spi_ctrls[i];
node = node_list[i];
- ctrl->regs = (struct slink_tegra *)fdtdec_get_addr(gd->fdt_blob,
- node, "reg");
+ ctrl->regs = (struct spi_regs *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
if ((fdt_addr_t)ctrl->regs == FDT_ADDR_T_NONE) {
debug("%s: no slink register found\n", __func__);
continue;
@@ -148,44 +196,18 @@ void spi_init(void)
continue;
}
ctrl->valid = 1;
+ found = 1;
debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
__func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
}
-#else
- for (i = 0; i < CONFIG_TEGRA_SLINK_CTRLS; i++) {
- ctrl = &spi_ctrls[i];
- u32 base_regs[] = {
- NV_PA_SLINK1_BASE,
- NV_PA_SLINK2_BASE,
- NV_PA_SLINK3_BASE,
- NV_PA_SLINK4_BASE,
- NV_PA_SLINK5_BASE,
- NV_PA_SLINK6_BASE,
- };
- int periph_ids[] = {
- PERIPH_ID_SBC1,
- PERIPH_ID_SBC2,
- PERIPH_ID_SBC3,
- PERIPH_ID_SBC4,
- PERIPH_ID_SBC5,
- PERIPH_ID_SBC6,
- };
- ctrl->regs = (struct slink_tegra *)base_regs[i];
- ctrl->freq = TEGRA_SPI_MAX_FREQ;
- ctrl->periph_id = periph_ids[i];
- ctrl->valid = 1;
-
- debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
- __func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
- }
-#endif
+ return !found;
}
-int spi_claim_bus(struct spi_slave *slave)
+int tegra30_spi_claim_bus(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct slink_tegra *regs = spi->ctrl->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
u32 reg;
/* Change SPI clock to correct frequency, PLLP_OUT0 source */
@@ -207,33 +229,29 @@ int spi_claim_bus(struct spi_slave *slave)
return 0;
}
-void spi_release_bus(struct spi_slave *slave)
-{
-}
-
-void spi_cs_activate(struct spi_slave *slave)
+void tegra30_spi_cs_activate(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct slink_tegra *regs = spi->ctrl->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
/* CS is negated on Tegra, so drive a 1 to get a 0 */
setbits_le32(&regs->command, SLINK_CMD_CS_VAL);
}
-void spi_cs_deactivate(struct spi_slave *slave)
+void tegra30_spi_cs_deactivate(struct spi_slave *slave)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct slink_tegra *regs = spi->ctrl->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
/* CS is negated on Tegra, so drive a 0 to get a 1 */
clrbits_le32(&regs->command, SLINK_CMD_CS_VAL);
}
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+int tegra30_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
const void *data_out, void *data_in, unsigned long flags)
{
struct tegra_spi_slave *spi = to_tegra_spi(slave);
- struct slink_tegra *regs = spi->ctrl->regs;
+ struct spi_regs *regs = spi->ctrl->regs;
u32 reg, tmpdout, tmpdin = 0;
const u8 *dout = data_out;
u8 *din = data_in;
diff --git a/include/configs/cardhu.h b/include/configs/cardhu.h
index 55dc83d..6a99175 100644
--- a/include/configs/cardhu.h
+++ b/include/configs/cardhu.h
@@ -60,7 +60,7 @@
#define CONFIG_SYS_MMC_ENV_PART 2
/* SPI */
-#define CONFIG_TEGRA_SLINK
+#define CONFIG_TEGRA20_SLINK
#define CONFIG_TEGRA_SLINK_CTRLS 6
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_WINBOND
diff --git a/include/configs/dalmore.h b/include/configs/dalmore.h
index b1a6e34..7b68f7c 100644
--- a/include/configs/dalmore.h
+++ b/include/configs/dalmore.h
@@ -50,10 +50,31 @@
#define CONFIG_SYS_I2C_SPEED 100000
#define CONFIG_CMD_I2C
-#define CONFIG_ENV_IS_NOWHERE
+/* SD/MMC */
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_TEGRA_MMC
+#define CONFIG_CMD_MMC
+
+/* Environment in eMMC, at the end of 2nd "boot sector" */
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV 0
+#define CONFIG_SYS_MMC_ENV_PART 2
+#define CONFIG_ENV_OFFSET ((4096 * 1024) - CONFIG_ENV_SIZE)
#define MACH_TYPE_DALMORE 4304 /* not yet in mach-types.h */
+/* SPI */
+#define CONFIG_TEGRA114_SPI
+#define CONFIG_TEGRA114_SPI_CTRLS 6
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_WINBOND
+#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
+#define CONFIG_SF_DEFAULT_SPEED 24000000
+#define CONFIG_CMD_SPI
+#define CONFIG_CMD_SF
+#define CONFIG_SPI_FLASH_SIZE (4 << 20)
+
#include "tegra-common-post.h"
#endif /* __CONFIG_H */
diff --git a/include/configs/tegra-common-post.h b/include/configs/tegra-common-post.h
index f2a70b1..bf18699 100644
--- a/include/configs/tegra-common-post.h
+++ b/include/configs/tegra-common-post.h
@@ -150,6 +150,10 @@
MEM_LAYOUT_ENV_SETTINGS \
BOOTCMDS_COMMON
+#if defined(CONFIG_TEGRA20_SFLASH) || defined(CONFIG_TEGRA20_SLINK) || defined(CONFIG_TEGRA114_SPI)
+#define CONFIG_FDT_SPI
+#endif
+
/* overrides for SPL build here */
#ifdef CONFIG_SPL_BUILD
diff --git a/include/configs/trimslice.h b/include/configs/trimslice.h
index 0644f7a..b925314 100644
--- a/include/configs/trimslice.h
+++ b/include/configs/trimslice.h
@@ -46,7 +46,7 @@
#define CONFIG_BOARD_EARLY_INIT_F
/* SPI */
-#define CONFIG_TEGRA_SPI
+#define CONFIG_TEGRA20_SFLASH
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_WINBOND
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 4fd1b67..cb520a6 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -75,6 +75,7 @@ enum fdt_compat_id {
COMPAT_NVIDIA_TEGRA20_SDMMC, /* Tegra20 SDMMC controller */
COMPAT_NVIDIA_TEGRA20_SFLASH, /* Tegra 2 SPI flash controller */
COMPAT_NVIDIA_TEGRA20_SLINK, /* Tegra 2 SPI SLINK controller */
+ COMPAT_NVIDIA_TEGRA114_SPI, /* Tegra 114 SPI controller */
COMPAT_SMSC_LAN9215, /* SMSC 10/100 Ethernet LAN9215 */
COMPAT_SAMSUNG_EXYNOS5_SROMC, /* Exynos5 SROMC */
COMPAT_SAMSUNG_S3C2440_I2C, /* Exynos I2C Controller */
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index b232096..d2166e6 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -50,6 +50,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(NVIDIA_TEGRA20_SDMMC, "nvidia,tegra20-sdhci"),
COMPAT(NVIDIA_TEGRA20_SFLASH, "nvidia,tegra20-sflash"),
COMPAT(NVIDIA_TEGRA20_SLINK, "nvidia,tegra20-slink"),
+ COMPAT(NVIDIA_TEGRA114_SPI, "nvidia,tegra114-spi"),
COMPAT(SMSC_LAN9215, "smsc,lan9215"),
COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"),
COMPAT(SAMSUNG_S3C2440_I2C, "samsung,s3c2440-i2c"),