ipq8064: copy u-boot spi driver as is

This brings in the banana_cs version of the SPI driver.

BUG=chrome-os-partner:27784
TEST=none

Original-Change-Id: Ie93ec8c962c26fff1f0a235516cd8a4062cab40b
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/194225
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit 3cada6e4ed51a6d4f637aa31a1a836352a99d13d)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I0a58a4ddaf9375c22c9b2b249a2baa2c5538ba6c
Reviewed-on: http://review.coreboot.org/7982
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>

1 files changed, 340 insertions, 0 deletions

diff --git a/src/soc/qualcomm/ipq806x/include/spi.h b/src/soc/qualcomm/ipq806x/include/spi.h
new file mode 100644
index 0000000000..2020043c6c
--- /dev/null
+++ b/src/soc/qualcomm/ipq806x/include/spi.h
@@ -0,0 +1,340 @@
+/*
+ * Register definitions for the IPQ GSBI Controller
+ * Copyright (c) 2012 The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _IPQ_SPI_H_
+#define _IPQ_SPI_H_
+
+#define QUP5_BASE	0x1a280000
+#define QUP6_BASE	0x16580000
+#define QUP7_BASE	0x16680000
+
+#define GSBI5_BASE	0x1a200000
+#define GSBI6_BASE	0x16500000
+#define GSBI7_BASE	0x16600000
+
+#define GSBI5_QUP5_REG_BASE		(QUP5_BASE + 0x00000000)
+#define GSBI6_QUP6_REG_BASE		(QUP6_BASE + 0x00000000)
+#define GSBI7_QUP7_REG_BASE		(QUP7_BASE + 0x00000000)
+
+#define GSBI5_REG_BASE			(GSBI5_BASE + 0x00000000)
+#define GSBI6_REG_BASE			(GSBI6_BASE + 0x00000000)
+#define GSBI7_REG_BASE			(GSBI7_BASE + 0x00000000)
+
+#define BOOT_SPI_PORT5_BASE		QUP5_BASE
+#define BOOT_SPI_PORT6_BASE		QUP6_BASE
+#define BOOT_SPI_PORT7_BASE		QUP7_BASE
+
+#define GSBI5_SPI_CONFIG_REG		(GSBI5_QUP5_REG_BASE + 0x00000300)
+#define GSBI6_SPI_CONFIG_REG		(GSBI6_QUP6_REG_BASE + 0x00000300)
+#define GSBI7_SPI_CONFIG_REG		(GSBI7_QUP7_REG_BASE + 0x00000300)
+
+#define GSBI5_SPI_IO_CONTROL_REG	(GSBI5_QUP5_REG_BASE + 0x00000304)
+#define GSBI6_SPI_IO_CONTROL_REG	(GSBI6_QUP6_REG_BASE + 0x00000304)
+#define GSBI7_SPI_IO_CONTROL_REG	(GSBI7_QUP7_REG_BASE + 0x00000304)
+
+#define GSBI5_SPI_ERROR_FLAGS_REG	(GSBI5_QUP5_REG_BASE + 0x00000308)
+#define GSBI6_SPI_ERROR_FLAGS_REG	(GSBI6_QUP6_REG_BASE + 0x00000308)
+#define GSBI7_SPI_ERROR_FLAGS_REG	(GSBI7_QUP7_REG_BASE + 0x00000308)
+
+#define GSBI5_SPI_ERROR_FLAGS_EN_REG	(GSBI5_QUP5_REG_BASE + 0x0000030c)
+#define GSBI6_SPI_ERROR_FLAGS_EN_REG	(GSBI6_QUP6_REG_BASE + 0x0000030c)
+#define GSBI7_SPI_ERROR_FLAGS_EN_REG	(GSBI7_QUP7_REG_BASE + 0x0000030c)
+
+#define GSBI5_GSBI_CTRL_REG_REG		(GSBI5_REG_BASE + 0x00000000)
+#define GSBI6_GSBI_CTRL_REG_REG		(GSBI6_REG_BASE + 0x00000000)
+#define GSBI7_GSBI_CTRL_REG_REG		(GSBI7_REG_BASE + 0x00000000)
+
+#define GSBI5_QUP_CONFIG_REG		(GSBI5_QUP5_REG_BASE + 0x00000000)
+#define GSBI6_QUP_CONFIG_REG		(GSBI6_QUP6_REG_BASE + 0x00000000)
+#define GSBI7_QUP_CONFIG_REG		(GSBI7_QUP7_REG_BASE + 0x00000000)
+
+#define GSBI5_QUP_ERROR_FLAGS_REG	(GSBI5_QUP5_REG_BASE      + 0x0000001c)
+#define GSBI6_QUP_ERROR_FLAGS_REG	(GSBI6_QUP6_REG_BASE      + 0x0000001c)
+#define GSBI7_QUP_ERROR_FLAGS_REG	(GSBI7_QUP7_REG_BASE      + 0x0000001c)
+
+#define GSBI5_QUP_ERROR_FLAGS_EN_REG	(GSBI5_QUP5_REG_BASE + 0x00000020)
+#define GSBI6_QUP_ERROR_FLAGS_EN_REG	(GSBI6_QUP6_REG_BASE + 0x00000020)
+#define GSBI7_QUP_ERROR_FLAGS_EN_REG	(GSBI7_QUP7_REG_BASE + 0x00000020)
+
+#define GSBI5_QUP_OPERATIONAL_REG	(GSBI5_QUP5_REG_BASE + 0x00000018)
+#define GSBI6_QUP_OPERATIONAL_REG	(GSBI6_QUP6_REG_BASE + 0x00000018)
+#define GSBI7_QUP_OPERATIONAL_REG	(GSBI7_QUP7_REG_BASE + 0x00000018)
+
+#define GSBI5_QUP_IO_MODES_REG		(GSBI5_QUP5_REG_BASE + 0x00000008)
+#define GSBI6_QUP_IO_MODES_REG		(GSBI6_QUP6_REG_BASE + 0x00000008)
+#define GSBI7_QUP_IO_MODES_REG		(GSBI7_QUP7_REG_BASE + 0x00000008)
+
+#define GSBI5_QUP_STATE_REG		(GSBI5_QUP5_REG_BASE + 0x00000004)
+#define GSBI6_QUP_STATE_REG		(GSBI6_QUP6_REG_BASE + 0x00000004)
+#define GSBI7_QUP_STATE_REG		(GSBI7_QUP7_REG_BASE + 0x00000004)
+
+#define GSBI5_QUP_INPUT_FIFOc_REG(c) \
+		(GSBI5_QUP5_REG_BASE + 0x00000218 + 4 * (c))
+#define GSBI6_QUP_INPUT_FIFOc_REG(c) \
+		(GSBI6_QUP6_REG_BASE + 0x00000218 + 4 * (c))
+#define GSBI7_QUP_INPUT_FIFOc_REG(c) \
+		(GSBI7_QUP7_REG_BASE + 0x00000218 + 4 * (c))
+
+#define GSBI5_QUP_OUTPUT_FIFOc_REG(c) \
+		(GSBI5_QUP5_REG_BASE + 0x00000110 + 4 * (c))
+#define GSBI6_QUP_OUTPUT_FIFOc_REG(c) \
+		(GSBI6_QUP6_REG_BASE + 0x00000110 + 4 * (c))
+#define GSBI7_QUP_OUTPUT_FIFOc_REG(c) \
+		(GSBI7_QUP7_REG_BASE + 0x00000110 + 4 * (c))
+
+#define GSBI5_QUP_MX_INPUT_COUNT_REG	(GSBI5_QUP5_REG_BASE + 0x00000200)
+#define GSBI6_QUP_MX_INPUT_COUNT_REG	(GSBI6_QUP6_REG_BASE + 0x00000200)
+#define GSBI7_QUP_MX_INPUT_COUNT_REG	(GSBI7_QUP7_REG_BASE + 0x00000200)
+
+#define GSBI5_QUP_MX_OUTPUT_COUNT_REG	(GSBI5_QUP5_REG_BASE + 0x00000100)
+#define GSBI6_QUP_MX_OUTPUT_COUNT_REG	(GSBI6_QUP6_REG_BASE + 0x00000100)
+#define GSBI7_QUP_MX_OUTPUT_COUNT_REG	(GSBI7_QUP7_REG_BASE + 0x00000100)
+
+#define GSBI5_QUP_SW_RESET_REG		(GSBI5_QUP5_REG_BASE + 0x0000000c)
+#define GSBI6_QUP_SW_RESET_REG		(GSBI6_QUP6_REG_BASE + 0x0000000c)
+#define GSBI7_QUP_SW_RESET_REG		(GSBI7_QUP7_REG_BASE + 0x0000000c)
+
+#define CLK_CTL_REG_BASE		0x00900000
+#define GSBIn_RESET_REG(n) \
+		(CLK_CTL_REG_BASE      + 0x000029dc + 32 * ((n)-1))
+
+#define SFAB_AHB_S3_FCLK_CTL_REG \
+		(CLK_CTL_REG_BASE      + 0x0000216c)
+#define CFPB_CLK_NS_REG \
+		(CLK_CTL_REG_BASE      + 0x0000264c)
+#define SFAB_CFPB_S_HCLK_CTL_REG \
+		(CLK_CTL_REG_BASE      + 0x000026c0)
+#define CFPB_SPLITTER_HCLK_CTL_REG \
+		(CLK_CTL_REG_BASE      + 0x000026e0)
+#define CFPB0_HCLK_CTL_REG \
+		(CLK_CTL_REG_BASE      + 0x00002650)
+#define CFPB2_HCLK_CTL_REG \
+		(CLK_CTL_REG_BASE      + 0x00002658)
+#define GSBIn_HCLK_CTL_REG(n) \
+		(CLK_CTL_REG_BASE      + 0x000029c0 + 32 * ((n)-1))
+#define GSBIn_QUP_APPS_NS_REG(n) \
+	(CLK_CTL_REG_BASE      + 0x000029cc + 32 * ((n)-1))
+#define GSBIn_QUP_APPS_MD_REG(n) \
+		(CLK_CTL_REG_BASE      + 0x000029c8 + 32 * ((n)-1))
+#define CLK_HALT_CFPB_STATEB_REG \
+		(CLK_CTL_REG_BASE      + 0x00002fd0)
+
+#define GSBI5_HCLK				23
+#define GSBI6_HCLK				19
+#define GSBI7_HCLK				15
+#define GSBI5_QUP_APPS_CLK			20
+#define GSBI6_QUP_APPS_CLK			16
+#define GSBI7_QUP_APPS_CLK			12
+#define GSBI_CLK_BRANCH_ENA_MSK			(1 << 4)
+#define GSBI_CLK_BRANCH_ENA			(1 << 4)
+#define GSBI_CLK_BRANCH_DIS			(0 << 4)
+#define QUP_CLK_BRANCH_ENA_MSK			(1 << 9)
+#define QUP_CLK_BRANCH_ENA			(1 << 9)
+#define QUP_CLK_BRANCH_DIS			(0 << 9)
+#define CLK_ROOT_ENA_MSK			(1 << 11)
+#define CLK_ROOT_ENA				(1 << 11)
+#define CLK_ROOT_DIS				(0 << 11)
+
+#define QUP_STATE_VALID_BIT			2
+#define QUP_STATE_VALID				1
+#define QUP_STATE_MASK				0x3
+#define QUP_CONFIG_MINI_CORE_MSK		(0x0F << 8)
+#define QUP_CONFIG_MINI_CORE_SPI		(1 << 8)
+#define SPI_QUP_CONF_INPUT_MSK			(1 << 7)
+#define SPI_QUP_CONF_INPUT_ENA			(0 << 7)
+#define SPI_QUP_CONF_OUTPUT_MSK			(1 << 6)
+#define SPI_QUP_CONF_OUTPUT_ENA			(0 << 6)
+#define QUP_STATE_RUN_STATE			0x1
+#define QUP_STATE_RESET_STATE			0x0
+#define SPI_BIT_WORD_MSK			0x1F
+#define SPI_8_BIT_WORD				0x07
+#define PROTOCOL_CODE_MSK			(0x07 << 4)
+#define PROTOCOL_CODE_SPI			(0x03 << 4)
+#define LOOP_BACK_MSK				(1 << 8)
+#define NO_LOOP_BACK				(0 << 8)
+#define SLAVE_OPERATION_MSK			(1 << 5)
+#define SLAVE_OPERATION				(0 << 5)
+#define CLK_ALWAYS_ON				(0 << 9)
+#define MX_CS_MODE				(0 << 8)
+#define NO_TRI_STATE				(1 << 0)
+#define OUTPUT_BIT_SHIFT_MSK			(1 << 16)
+#define OUTPUT_BIT_SHIFT_EN			(1 << 16)
+#define INPUT_BLOCK_MODE_MSK			(0x03 << 12)
+#define INPUT_BLOCK_MODE			(0x01 << 12)
+#define OUTPUT_BLOCK_MODE_MSK			(0x03 << 10)
+#define OUTPUT_BLOCK_MODE			(0x01 << 10)
+#define GSBI1_RESET				(1 << 0)
+#define GSBI1_RESET_MSK				0x1
+
+#define GSBI_M_VAL_SHFT				16
+#define GSBIn_M_VAL_MSK				(0xFF << GSBI_M_VAL_SHFT)
+#define GSBI_N_VAL_SHFT				16
+#define GSBIn_N_VAL_MSK				(0xFF << GSBI_N_VAL_SHFT)
+#define GSBI_D_VAL_SHFT				0
+#define GSBIn_D_VAL_MSK				(0xFF << GSBI_D_VAL_SHFT)
+#define MNCNTR_RST_MSK				(1 << 7)
+#define MNCNTR_RST_ENA				(1 << 7)
+#define MNCNTR_RST_DIS				(0 << 7)
+#define MNCNTR_MSK				(1 << 8)
+#define MNCNTR_EN				(1 << 8)
+#define MNCNTR_DIS				(0 << 8)
+#define MNCNTR_MODE_MSK				(0x3 << 5)
+#define MNCNTR_MODE_BYPASS			(0 << 5)
+#define MNCNTR_MODE_DUAL_EDGE			(0x2 << 5)
+#define GSBI_PRE_DIV_SEL_SHFT			3
+#define GSBIn_PRE_DIV_SEL_MSK			(0x3 << GSBI_PRE_DIV_SEL_SHFT)
+#define GSBIn_PLL_SRC_MSK			(0x03 << 0)
+#define GSBIn_PLL_SRC_PXO			(0 << 0)
+#define GSBIn_PLL_SRC_PLL8			(0x3 << 0)
+
+#define SPI_INPUT_FIRST_MODE			(1 << 9)
+#define SPI_IO_CONTROL_CLOCK_IDLE_HIGH		(1 << 10)
+#define QUP_DATA_AVAILABLE_FOR_READ		(1 << 5)
+#define QUP_OUTPUT_FIFO_NOT_EMPTY		(1 << 4)
+#define OUTPUT_SERVICE_FLAG			(1 << 8)
+#define INPUT_SERVICE_FLAG			(1 << 9)
+#define QUP_OUTPUT_FIFO_FULL			(1 << 6)
+#define SPI_INPUT_BLOCK_SIZE			4
+#define SPI_OUTPUT_BLOCK_SIZE			4
+#define GSBI5_SPI_CLK				21
+#define GSBI5_SPI_MISO				19
+#define GSBI5_SPI_MOSI				18
+#define GSBI5_SPI_CS_0				20
+#define GSBI5_SPI_CS_1				61
+#define GSBI5_SPI_CS_2				62
+#define GSBI5_SPI_CS_3				2
+#define GSBI6_SPI_CLK				30
+#define GSBI6_SPI_CS_0				29
+#define GSBI6_SPI_MISO				28
+#define GSBI6_SPI_MOSI				27
+#define GSBI7_SPI_CLK				9
+#define GSBI7_SPI_CS_0				8
+#define GSBI7_SPI_MISO				7
+#define GSBI7_SPI_MOSI				6
+
+#define GPIO_FUNC_ENABLE			1
+#define GPIO_FUNC_DISABLE			0
+#define FUNC_SEL_1				1
+#define FUNC_SEL_3				3
+#define FUNC_SEL_GPIO				0
+#define GPIO_DRV_STR_10MA			0x4
+#define GPIO_DRV_STR_11MA			0x7
+#define GPIO_OUT				1
+#define MSM_GSBI_MAX_FREQ			51200000
+
+#define SPI_RESET_STATE				0
+#define SPI_RUN_STATE				1
+#define SPI_CORE_RESET				0
+#define SPI_CORE_RUNNING			1
+#define GSBI_SPI_MODE_0				0
+#define GSBI_SPI_MODE_1				1
+#define GSBI_SPI_MODE_2				2
+#define GSBI_SPI_MODE_3				3
+#define GSBI5_SPI				0
+#define GSBI6_SPI				1
+#define GSBI7_SPI				2
+
+struct gsbi_spi {
+	unsigned int     spi_config;
+	unsigned int     io_control;
+	unsigned int     error_flags;
+	unsigned int     error_flags_en;
+	unsigned int     gsbi_ctrl;
+	unsigned int     qup_config;
+	unsigned int     qup_error_flags;
+	unsigned int     qup_error_flags_en;
+	unsigned int     qup_operational;
+	unsigned int     qup_io_modes;
+	unsigned int     qup_state;
+	unsigned int     qup_input_fifo;
+	unsigned int     qup_output_fifo;
+	unsigned int     qup_mx_input_count;
+	unsigned int     qup_mx_output_count;
+	unsigned int     qup_sw_reset;
+	unsigned int     qup_ns_reg;
+	unsigned int     qup_md_reg;
+};
+
+static const struct gsbi_spi spi_reg[] = {
+	/* GSBI5 registers for SPI interface */
+	{
+		GSBI5_SPI_CONFIG_REG,
+		GSBI5_SPI_IO_CONTROL_REG,
+		GSBI5_SPI_ERROR_FLAGS_REG,
+		GSBI5_SPI_ERROR_FLAGS_EN_REG,
+		GSBI5_GSBI_CTRL_REG_REG,
+		GSBI5_QUP_CONFIG_REG,
+		GSBI5_QUP_ERROR_FLAGS_REG,
+		GSBI5_QUP_ERROR_FLAGS_EN_REG,
+		GSBI5_QUP_OPERATIONAL_REG,
+		GSBI5_QUP_IO_MODES_REG,
+		GSBI5_QUP_STATE_REG,
+		GSBI5_QUP_INPUT_FIFOc_REG(0),
+		GSBI5_QUP_OUTPUT_FIFOc_REG(0),
+		GSBI5_QUP_MX_INPUT_COUNT_REG,
+		GSBI5_QUP_MX_OUTPUT_COUNT_REG,
+		GSBI5_QUP_SW_RESET_REG,
+		GSBIn_QUP_APPS_NS_REG(5),
+		GSBIn_QUP_APPS_MD_REG(5)
+	},
+	/* GSBI6 registers for SPI interface */
+	{
+		GSBI6_SPI_CONFIG_REG,
+		GSBI6_SPI_IO_CONTROL_REG,
+		GSBI6_SPI_ERROR_FLAGS_REG,
+		GSBI6_SPI_ERROR_FLAGS_EN_REG,
+		GSBI6_GSBI_CTRL_REG_REG,
+		GSBI6_QUP_CONFIG_REG,
+		GSBI6_QUP_ERROR_FLAGS_REG,
+		GSBI6_QUP_ERROR_FLAGS_EN_REG,
+		GSBI6_QUP_OPERATIONAL_REG,
+		GSBI6_QUP_IO_MODES_REG,
+		GSBI6_QUP_STATE_REG,
+		GSBI6_QUP_INPUT_FIFOc_REG(0),
+		GSBI6_QUP_OUTPUT_FIFOc_REG(0),
+		GSBI6_QUP_MX_INPUT_COUNT_REG,
+		GSBI6_QUP_MX_OUTPUT_COUNT_REG,
+		GSBI6_QUP_SW_RESET_REG,
+		GSBIn_QUP_APPS_NS_REG(6),
+		GSBIn_QUP_APPS_MD_REG(6)
+	},
+	/* GSBI7 registers for SPI interface */
+	{
+		GSBI7_SPI_CONFIG_REG,
+		GSBI7_SPI_IO_CONTROL_REG,
+		GSBI7_SPI_ERROR_FLAGS_REG,
+		GSBI7_SPI_ERROR_FLAGS_EN_REG,
+		GSBI7_GSBI_CTRL_REG_REG,
+		GSBI7_QUP_CONFIG_REG,
+		GSBI7_QUP_ERROR_FLAGS_REG,
+		GSBI7_QUP_ERROR_FLAGS_EN_REG,
+		GSBI7_QUP_OPERATIONAL_REG,
+		GSBI7_QUP_IO_MODES_REG,
+		GSBI7_QUP_STATE_REG,
+		GSBI7_QUP_INPUT_FIFOc_REG(0),
+		GSBI7_QUP_OUTPUT_FIFOc_REG(0),
+		GSBI7_QUP_MX_INPUT_COUNT_REG,
+		GSBI7_QUP_MX_OUTPUT_COUNT_REG,
+		GSBI7_QUP_SW_RESET_REG,
+		GSBIn_QUP_APPS_NS_REG(7),
+		GSBIn_QUP_APPS_MD_REG(7)
+	}
+};
+
+struct ipq_spi_slave {
+	struct spi_slave slave;
+	const struct gsbi_spi *regs;
+	unsigned int core_state;
+	unsigned int mode;
+	unsigned int initialized;
+	unsigned long freq;
+};
+
+static inline struct ipq_spi_slave *to_ipq_spi(struct spi_slave *slave)
+{
+	return container_of(slave, struct ipq_spi_slave, slave);
+}
+
+#endif /* _IPQ_SPI_H_ */