diff mbox series

[v2,3/5] arm: mach-omap2: am33xx: Add device structure for spi

Message ID 20200914064117.5718-4-faiz_abbas@ti.com
State Accepted
Commit 41cf3cb39ddbb8a0b892781388e1054653d33ed1
Delegated to: Lokesh Vutla
Headers show
Series Add spi boot support to am335x-icev2 | expand

Commit Message

Faiz Abbas Sept. 14, 2020, 6:41 a.m. UTC
Add platform data and a device structure for the spi device
present on am335x-icev2. This requires moving all omap3_spi
platform data structures and symbols to an omap3_spi.h so that
the board file can access them.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
 arch/arm/mach-omap2/am33xx/board.c | 18 +++++++
 drivers/spi/omap3_spi.c            | 70 +--------------------------
 include/configs/am335x_evm.h       |  2 -
 include/omap3_spi.h                | 78 ++++++++++++++++++++++++++++++
 4 files changed, 97 insertions(+), 71 deletions(-)
 create mode 100644 include/omap3_spi.h
diff mbox series

Patch

diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c
index a7b56b6bb3..2888390d24 100644
--- a/arch/arm/mach-omap2/am33xx/board.c
+++ b/arch/arm/mach-omap2/am33xx/board.c
@@ -14,6 +14,7 @@ 
 #include <init.h>
 #include <net.h>
 #include <ns16550.h>
+#include <omap3_spi.h>
 #include <spl.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/hardware.h>
@@ -49,6 +50,12 @@ 
 #define AM43XX_READ_WRITE_LEVELING_CTRL_OFFSET		0xDC
 #define AM43XX_RDWRLVLFULL_START			0x80000000
 
+/* SPI flash. */
+#if CONFIG_IS_ENABLED(DM_SPI) && !CONFIG_IS_ENABLED(OF_CONTROL)
+#define AM33XX_SPI0_BASE	0x48030000
+#define AM33XX_SPI0_OFFSET	(AM33XX_SPI0_BASE + OMAP4_MCSPI_REG_OFFSET)
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
@@ -142,6 +149,17 @@  U_BOOT_DEVICES(am33xx_gpios) = {
 #endif
 };
 #endif
+#if CONFIG_IS_ENABLED(DM_SPI) && !CONFIG_IS_ENABLED(OF_CONTROL)
+static const struct omap3_spi_plat omap3_spi_pdata = {
+	.regs = (struct mcspi *)AM33XX_SPI0_OFFSET,
+	.pin_dir = MCSPI_PINDIR_D0_IN_D1_OUT,
+};
+
+U_BOOT_DEVICE(am33xx_spi) = {
+	.name = "omap3_spi",
+	.platdata = &omap3_spi_pdata,
+};
+#endif
 #endif
 
 #if !CONFIG_IS_ENABLED(DM_GPIO)
diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c
index fbf9575851..fb1cf360fc 100644
--- a/drivers/spi/omap3_spi.c
+++ b/drivers/spi/omap3_spi.c
@@ -22,82 +22,14 @@ 
 #include <malloc.h>
 #include <asm/io.h>
 #include <linux/bitops.h>
+#include <omap3_spi.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define OMAP4_MCSPI_REG_OFFSET	0x100
-
 struct omap2_mcspi_platform_config {
 	unsigned int regs_offset;
 };
 
-/* per-register bitmasks */
-#define OMAP3_MCSPI_SYSCONFIG_SMARTIDLE (2 << 3)
-#define OMAP3_MCSPI_SYSCONFIG_ENAWAKEUP BIT(2)
-#define OMAP3_MCSPI_SYSCONFIG_AUTOIDLE	BIT(0)
-#define OMAP3_MCSPI_SYSCONFIG_SOFTRESET BIT(1)
-
-#define OMAP3_MCSPI_SYSSTATUS_RESETDONE BIT(0)
-
-#define OMAP3_MCSPI_MODULCTRL_SINGLE	BIT(0)
-#define OMAP3_MCSPI_MODULCTRL_MS	BIT(2)
-#define OMAP3_MCSPI_MODULCTRL_STEST	BIT(3)
-
-#define OMAP3_MCSPI_CHCONF_PHA		BIT(0)
-#define OMAP3_MCSPI_CHCONF_POL		BIT(1)
-#define OMAP3_MCSPI_CHCONF_CLKD_MASK	GENMASK(5, 2)
-#define OMAP3_MCSPI_CHCONF_EPOL		BIT(6)
-#define OMAP3_MCSPI_CHCONF_WL_MASK	GENMASK(11, 7)
-#define OMAP3_MCSPI_CHCONF_TRM_RX_ONLY	BIT(12)
-#define OMAP3_MCSPI_CHCONF_TRM_TX_ONLY	BIT(13)
-#define OMAP3_MCSPI_CHCONF_TRM_MASK	GENMASK(13, 12)
-#define OMAP3_MCSPI_CHCONF_DMAW		BIT(14)
-#define OMAP3_MCSPI_CHCONF_DMAR		BIT(15)
-#define OMAP3_MCSPI_CHCONF_DPE0		BIT(16)
-#define OMAP3_MCSPI_CHCONF_DPE1		BIT(17)
-#define OMAP3_MCSPI_CHCONF_IS		BIT(18)
-#define OMAP3_MCSPI_CHCONF_TURBO	BIT(19)
-#define OMAP3_MCSPI_CHCONF_FORCE	BIT(20)
-
-#define OMAP3_MCSPI_CHSTAT_RXS		BIT(0)
-#define OMAP3_MCSPI_CHSTAT_TXS		BIT(1)
-#define OMAP3_MCSPI_CHSTAT_EOT		BIT(2)
-
-#define OMAP3_MCSPI_CHCTRL_EN		BIT(0)
-#define OMAP3_MCSPI_CHCTRL_DIS		(0 << 0)
-
-#define OMAP3_MCSPI_WAKEUPENABLE_WKEN	BIT(0)
-#define MCSPI_PINDIR_D0_IN_D1_OUT	0
-#define MCSPI_PINDIR_D0_OUT_D1_IN	1
-
-#define OMAP3_MCSPI_MAX_FREQ		48000000
-#define SPI_WAIT_TIMEOUT		10
-
-/* OMAP3 McSPI registers */
-struct mcspi_channel {
-	unsigned int chconf;		/* 0x2C, 0x40, 0x54, 0x68 */
-	unsigned int chstat;		/* 0x30, 0x44, 0x58, 0x6C */
-	unsigned int chctrl;		/* 0x34, 0x48, 0x5C, 0x70 */
-	unsigned int tx;		/* 0x38, 0x4C, 0x60, 0x74 */
-	unsigned int rx;		/* 0x3C, 0x50, 0x64, 0x78 */
-};
-
-struct mcspi {
-	unsigned char res1[0x10];
-	unsigned int sysconfig;		/* 0x10 */
-	unsigned int sysstatus;		/* 0x14 */
-	unsigned int irqstatus;		/* 0x18 */
-	unsigned int irqenable;		/* 0x1C */
-	unsigned int wakeupenable;	/* 0x20 */
-	unsigned int syst;		/* 0x24 */
-	unsigned int modulctrl;		/* 0x28 */
-	struct mcspi_channel channel[4];
-	/* channel0: 0x2C - 0x3C, bus 0 & 1 & 2 & 3 */
-	/* channel1: 0x40 - 0x50, bus 0 & 1 */
-	/* channel2: 0x54 - 0x64, bus 0 & 1 */
-	/* channel3: 0x68 - 0x78, bus 0 */
-};
-
 struct omap3_spi_priv {
 	struct mcspi *regs;
 	unsigned int cs;
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 9c4ef369c5..0767927376 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -280,8 +280,6 @@ 
 #define CONFIG_SYS_ENV_SECT_SIZE	CONFIG_SYS_NAND_BLOCK_SIZE
 #endif
 
-/* SPI flash. */
-
 /* Network. */
 /* Enable Atheros phy driver */
 
diff --git a/include/omap3_spi.h b/include/omap3_spi.h
new file mode 100644
index 0000000000..cae3770583
--- /dev/null
+++ b/include/omap3_spi.h
@@ -0,0 +1,78 @@ 
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef __OMAP3_SPI_H_
+#define __OMAP3_SPI_H_
+
+/* per-register bitmasks */
+#define OMAP3_MCSPI_SYSCONFIG_SMARTIDLE (2 << 3)
+#define OMAP3_MCSPI_SYSCONFIG_ENAWAKEUP BIT(2)
+#define OMAP3_MCSPI_SYSCONFIG_AUTOIDLE	BIT(0)
+#define OMAP3_MCSPI_SYSCONFIG_SOFTRESET BIT(1)
+
+#define OMAP3_MCSPI_SYSSTATUS_RESETDONE BIT(0)
+
+#define OMAP3_MCSPI_MODULCTRL_SINGLE	BIT(0)
+#define OMAP3_MCSPI_MODULCTRL_MS	BIT(2)
+#define OMAP3_MCSPI_MODULCTRL_STEST	BIT(3)
+
+#define OMAP3_MCSPI_CHCONF_PHA		BIT(0)
+#define OMAP3_MCSPI_CHCONF_POL		BIT(1)
+#define OMAP3_MCSPI_CHCONF_CLKD_MASK	GENMASK(5, 2)
+#define OMAP3_MCSPI_CHCONF_EPOL		BIT(6)
+#define OMAP3_MCSPI_CHCONF_WL_MASK	GENMASK(11, 7)
+#define OMAP3_MCSPI_CHCONF_TRM_RX_ONLY	BIT(12)
+#define OMAP3_MCSPI_CHCONF_TRM_TX_ONLY	BIT(13)
+#define OMAP3_MCSPI_CHCONF_TRM_MASK	GENMASK(13, 12)
+#define OMAP3_MCSPI_CHCONF_DMAW		BIT(14)
+#define OMAP3_MCSPI_CHCONF_DMAR		BIT(15)
+#define OMAP3_MCSPI_CHCONF_DPE0		BIT(16)
+#define OMAP3_MCSPI_CHCONF_DPE1		BIT(17)
+#define OMAP3_MCSPI_CHCONF_IS		BIT(18)
+#define OMAP3_MCSPI_CHCONF_TURBO	BIT(19)
+#define OMAP3_MCSPI_CHCONF_FORCE	BIT(20)
+
+#define OMAP3_MCSPI_CHSTAT_RXS		BIT(0)
+#define OMAP3_MCSPI_CHSTAT_TXS		BIT(1)
+#define OMAP3_MCSPI_CHSTAT_EOT		BIT(2)
+
+#define OMAP3_MCSPI_CHCTRL_EN		BIT(0)
+#define OMAP3_MCSPI_CHCTRL_DIS		(0 << 0)
+
+#define OMAP3_MCSPI_WAKEUPENABLE_WKEN	BIT(0)
+#define MCSPI_PINDIR_D0_IN_D1_OUT	0
+#define MCSPI_PINDIR_D0_OUT_D1_IN	1
+
+#define OMAP3_MCSPI_MAX_FREQ		48000000
+#define SPI_WAIT_TIMEOUT		10
+
+#define OMAP4_MCSPI_REG_OFFSET	0x100
+
+/* OMAP3 McSPI registers */
+struct mcspi_channel {
+	unsigned int chconf;		/* 0x2C, 0x40, 0x54, 0x68 */
+	unsigned int chstat;		/* 0x30, 0x44, 0x58, 0x6C */
+	unsigned int chctrl;		/* 0x34, 0x48, 0x5C, 0x70 */
+	unsigned int tx;		/* 0x38, 0x4C, 0x60, 0x74 */
+	unsigned int rx;		/* 0x3C, 0x50, 0x64, 0x78 */
+};
+
+struct mcspi {
+	unsigned char res1[0x10];
+	unsigned int sysconfig;		/* 0x10 */
+	unsigned int sysstatus;		/* 0x14 */
+	unsigned int irqstatus;		/* 0x18 */
+	unsigned int irqenable;		/* 0x1C */
+	unsigned int wakeupenable;	/* 0x20 */
+	unsigned int syst;		/* 0x24 */
+	unsigned int modulctrl;		/* 0x28 */
+	struct mcspi_channel channel[4];
+	/* channel0: 0x2C - 0x3C, bus 0 & 1 & 2 & 3 */
+	/* channel1: 0x40 - 0x50, bus 0 & 1 */
+	/* channel2: 0x54 - 0x64, bus 0 & 1 */
+	/* channel3: 0x68 - 0x78, bus 0 */
+};
+
+struct omap3_spi_plat {
+	struct mcspi *regs;
+	unsigned int pin_dir:1;
+};
+#endif