Add driver for tegra114 SPI controller. This controller is not
compatible with either the tegra20 or tegra30 controllers, so it
requires a new driver.
Signed-off-by: Allen Martin amar...@nvidia.com
---
arch/arm/include/asm/arch-tegra114/tegra114_spi.h | 91 ++
drivers/spi/Makefile |1 +
drivers/spi/fdt_spi.c | 15 +
drivers/spi/tegra114_spi.c| 355 +
include/configs/tegra-common-post.h |2 +-
5 files changed, 463 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/include/asm/arch-tegra114/tegra114_spi.h
create mode 100644 drivers/spi/tegra114_spi.c
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 000..bfbfa21
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra114/tegra114_spi.h
@@ -0,0 +1,91 @@
+/*
+ * 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
+
+/* COMMAND1 */
+#define SPI_CMD1_GO(1 31)
+#define SPI_CMD1_M_S (1 30)
+#define SPI_CMD1_MODE_MASK 0x3
+#define SPI_CMD1_MODE_SHIFT28
+#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_SHIFT18
+#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)
+
+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/drivers/spi/Makefile b/drivers/spi/Makefile
index 5551d01..275b70f 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -48,6 +48,7 @@ COBJS-$(CONFIG_FSL_ESPI) += fsl_espi.o
COBJS-$(CONFIG_FDT_SPI) += fdt_spi.o
COBJS-$(CONFIG_TEGRA20_SPI) += tegra20_spi.o
COBJS-$(CONFIG_TEGRA30_SPI) +=
