mach-ux500: arm: add ST-E HSI controller

Signed-off-by: Pawel Szyszuk <pawel.szyszuk@stericsson.com>

4 files changed, 206 insertions, 2 deletions

diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c
index e23fffcc61a..d8ff7f7970a 100644
--- a/arch/arm/mach-ux500/board-mop500-pins.c
+++ b/arch/arm/mach-ux500/board-mop500-pins.c
@@ -65,6 +65,15 @@ static pin_cfg_t mop500_pins_common[] = {
 	GPIO30_U2_TXD	| PIN_OUTPUT_HIGH,
 	GPIO31_U2_CTSn	| PIN_INPUT_PULLUP,
 	GPIO32_U2_RTSn	| PIN_OUTPUT_HIGH,
+
+	/* HSI */
+	GPIO219_HSIR_FLA0,
+	GPIO220_HSIR_DAT0,
+	GPIO221_HSIR_RDY0,
+	GPIO222_HSIT_FLA0,
+	GPIO223_HSIT_DAT0,
+	GPIO224_HSIT_RDY0,
+	GPIO225_GPIO	| PIN_INPUT_PULLDOWN, /* CA_WAKE0 */
 };
 
 static pin_cfg_t mop500_pins_default[] = {
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 1f1cec128cd..792d684eb8d 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -19,6 +19,7 @@
 #include <linux/amba/pl022.h>
 #include <linux/amba/serial.h>
 #include <linux/spi/spi.h>
+#include <linux/hsi/hsi.h>
 #include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/ab8500.h>
 #include <linux/mfd/tc3589x.h>
@@ -785,6 +786,62 @@ static struct platform_device ste_ff_vibra_device = {
 	.name = "ste_ff_vibra"
 };
 
+#ifdef CONFIG_HSI
+static struct hsi_board_info __initdata u8500_hsi_devices[] = {
+	{
+		.name = "hsi_char",
+		.hsi_id = 0,
+		.port = 0,
+		.tx_cfg = {
+			.mode = HSI_MODE_STREAM,
+			.channels = 2,
+			.speed = 100000,
+			{.arb_mode = HSI_ARB_RR},
+		},
+		.rx_cfg = {
+			.mode = HSI_MODE_STREAM,
+			.channels = 2,
+			.speed = 200000,
+			{.flow = HSI_FLOW_SYNC},
+		},
+	},
+	{
+		.name = "hsi_test",
+		.hsi_id = 0,
+		.port = 0,
+		.tx_cfg = {
+			.mode = HSI_MODE_FRAME,
+			.channels = 2,
+			.speed = 100000,
+			{.arb_mode = HSI_ARB_RR},
+		},
+		.rx_cfg = {
+			.mode = HSI_MODE_FRAME,
+			.channels = 2,
+			.speed = 200000,
+			{.flow = HSI_FLOW_SYNC},
+		},
+	},
+	{
+		.name = "cfhsi_v3_driver",
+		.hsi_id = 0,
+		.port = 0,
+		.tx_cfg = {
+			.mode = HSI_MODE_STREAM,
+			.channels = 2,
+			.speed = 20000,
+			{.arb_mode = HSI_ARB_RR},
+		},
+		.rx_cfg = {
+			.mode = HSI_MODE_STREAM,
+			.channels = 2,
+			.speed = 200000,
+			{.flow = HSI_FLOW_SYNC},
+		},
+	},
+};
+#endif
+
 #ifdef CONFIG_U8500_SIM_DETECT
 static struct sim_detect_platform_data sim_detect_pdata = {
 	.irq_num		= MOP500_AB8500_VIR_GPIO_IRQ(6),
@@ -889,6 +946,9 @@ static struct platform_device *mop500_platform_devs[] __initdata = {
 #ifdef CONFIG_DB8500_MLOADER
 	&mloader_fw_device,
 #endif
+#ifdef CONFIG_HSI
+	&u8500_hsi_device,
+#endif
 #ifdef CONFIG_MODEM_U8500
 	&u8500_modem_dev,
 #endif
@@ -1149,6 +1209,11 @@ static void __init mop500_init_machine(void)
 
 	u8500_cryp1_hash1_init();
 
+#ifdef CONFIG_HSI
+	hsi_register_board_info(u8500_hsi_devices,
+				ARRAY_SIZE(u8500_hsi_devices));
+#endif
+
 	/* FIXME: parent of ab8500 should be prcmu */
 	for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
 		mop500_platform_devs[i]->dev.parent = parent;
@@ -1194,6 +1259,11 @@ ifdef CONFIG_REGULATOR
 
 	u8500_cryp1_hash1_init();
 
+#ifdef CONFIG_HSI
+	hsi_register_board_info(u8500_hsi_devices,
+				ARRAY_SIZE(u8500_hsi_devices));
+#endif
+
 	for (i = 0; i < ARRAY_SIZE(snowball_platform_devs); i++)
 		snowball_platform_devs[i]->dev.parent = parent;
 
@@ -1236,6 +1306,11 @@ static void __init hrefv60_init_machine(void)
 
 	u8500_cryp1_hash1_init();
 
+#ifdef CONFIG_HSI
+	hsi_register_board_info(u8500_hsi_devices,
+				ARRAY_SIZE(u8500_hsi_devices));
+#endif
+
 	for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
 		mop500_platform_devs[i]->dev.parent = parent;
 
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 46f79cf31d0..6c7b357e0ea 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -16,12 +16,14 @@
 
 #include <plat/ste_dma40.h>
 
+#include <mach/devices.h>
 #include <mach/hardware.h>
 #include <mach/setup.h>
+#include <mach/pm.h>
 #include <video/mcde.h>
 #include <linux/mfd/dbx500-prcmu.h>
+#include <mach/hsi.h>
 #include <mach/ste-dma40-db8500.h>
-#include "pm/pm.h"
 
 #include "pins-db8500.h"
 
@@ -294,6 +296,123 @@ struct platform_device u8500_prcmu_wdt_device = {
 };
 
 /*
+ * HSI
+ */
+#define HSIR_OVERRUN(num) {			    \
+	.start  = IRQ_DB8500_HSIR_CH##num##_OVRRUN, \
+	.end    = IRQ_DB8500_HSIR_CH##num##_OVRRUN, \
+	.flags  = IORESOURCE_IRQ,		    \
+	.name   = "hsi_rx_overrun_ch"#num	    \
+}
+
+#define STE_HSI_PORT0_TX_CHANNEL_CFG(n) { \
+       .dir = STEDMA40_MEM_TO_PERIPH, \
+       .high_priority = true, \
+       .mode = STEDMA40_MODE_LOGICAL, \
+       .mode_opt = STEDMA40_LCHAN_SRC_LOG_DST_LOG, \
+       .src_dev_type = STEDMA40_DEV_SRC_MEMORY, \
+       .dst_dev_type = n,\
+       .src_info.big_endian = false,\
+       .src_info.data_width = STEDMA40_WORD_WIDTH,\
+       .dst_info.big_endian = false,\
+       .dst_info.data_width = STEDMA40_WORD_WIDTH,\
+},
+
+#define STE_HSI_PORT0_RX_CHANNEL_CFG(n) { \
+       .dir = STEDMA40_PERIPH_TO_MEM, \
+       .high_priority = true, \
+       .mode = STEDMA40_MODE_LOGICAL, \
+       .mode_opt = STEDMA40_LCHAN_SRC_LOG_DST_LOG, \
+       .src_dev_type = n,\
+       .dst_dev_type = STEDMA40_DEV_DST_MEMORY, \
+       .src_info.big_endian = false,\
+       .src_info.data_width = STEDMA40_WORD_WIDTH,\
+       .dst_info.big_endian = false,\
+       .dst_info.data_width = STEDMA40_WORD_WIDTH,\
+},
+
+static struct resource u8500_hsi_resources[] = {
+       {
+	       .start  = U8500_HSIR_BASE,
+	       .end    = U8500_HSIR_BASE + SZ_4K - 1,
+	       .flags  = IORESOURCE_MEM,
+	       .name   = "hsi_rx_base"
+       },
+       {
+	       .start  = U8500_HSIT_BASE,
+	       .end    = U8500_HSIT_BASE + SZ_4K - 1,
+	       .flags  = IORESOURCE_MEM,
+	       .name   = "hsi_tx_base"
+       },
+       {
+	       .start  = IRQ_DB8500_HSIRD0,
+	       .end    = IRQ_DB8500_HSIRD0,
+	       .flags  = IORESOURCE_IRQ,
+	       .name   = "hsi_rx_irq0"
+       },
+       {
+	       .start  = IRQ_DB8500_HSITD0,
+	       .end    = IRQ_DB8500_HSITD0,
+	       .flags  = IORESOURCE_IRQ,
+	       .name   = "hsi_tx_irq0"
+       },
+       {
+	       .start  = IRQ_DB8500_HSIR_EXCEP,
+	       .end    = IRQ_DB8500_HSIR_EXCEP,
+	       .flags  = IORESOURCE_IRQ,
+	       .name   = "hsi_rx_excep0"
+       },
+       HSIR_OVERRUN(0),
+       HSIR_OVERRUN(1),
+       HSIR_OVERRUN(2),
+       HSIR_OVERRUN(3),
+       HSIR_OVERRUN(4),
+       HSIR_OVERRUN(5),
+       HSIR_OVERRUN(6),
+       HSIR_OVERRUN(7),
+};
+
+#ifdef CONFIG_STE_DMA40
+static struct stedma40_chan_cfg ste_hsi_port0_dma_tx_cfg[] = {
+       STE_HSI_PORT0_TX_CHANNEL_CFG(DB8500_DMA_DEV20_SLIM0_CH0_TX_HSI_TX_CH0)
+       STE_HSI_PORT0_TX_CHANNEL_CFG(DB8500_DMA_DEV21_SLIM0_CH1_TX_HSI_TX_CH1)
+       STE_HSI_PORT0_TX_CHANNEL_CFG(DB8500_DMA_DEV22_SLIM0_CH2_TX_HSI_TX_CH2)
+       STE_HSI_PORT0_TX_CHANNEL_CFG(DB8500_DMA_DEV23_SLIM0_CH3_TX_HSI_TX_CH3)
+};
+
+static struct stedma40_chan_cfg ste_hsi_port0_dma_rx_cfg[] = {
+       STE_HSI_PORT0_RX_CHANNEL_CFG(DB8500_DMA_DEV20_SLIM0_CH0_RX_HSI_RX_CH0)
+       STE_HSI_PORT0_RX_CHANNEL_CFG(DB8500_DMA_DEV21_SLIM0_CH1_RX_HSI_RX_CH1)
+       STE_HSI_PORT0_RX_CHANNEL_CFG(DB8500_DMA_DEV22_SLIM0_CH2_RX_HSI_RX_CH2)
+       STE_HSI_PORT0_RX_CHANNEL_CFG(DB8500_DMA_DEV23_SLIM0_CH3_RX_HSI_RX_CH3)
+};
+#endif
+
+static struct ste_hsi_port_cfg ste_hsi_port0_cfg = {
+#ifdef CONFIG_STE_DMA40
+       .dma_filter = stedma40_filter,
+       .dma_tx_cfg = ste_hsi_port0_dma_tx_cfg,
+       .dma_rx_cfg = ste_hsi_port0_dma_rx_cfg
+#endif
+};
+
+struct ste_hsi_platform_data u8500_hsi_platform_data = {
+       .num_ports = 1,
+       .use_dma = 1,
+       .port_cfg = &ste_hsi_port0_cfg,
+};
+
+struct platform_device u8500_hsi_device = {
+       .dev = {
+		.platform_data = &u8500_hsi_platform_data,
+       },
+       .name = "ste_hsi",
+       .id = 0,
+       .resource = u8500_hsi_resources,
+       .num_resources = ARRAY_SIZE(u8500_hsi_resources)
+};
+
+/*
  * Thermal Sensor
  */
 
@@ -336,4 +455,4 @@ struct platform_device u8500_ske_keypad_device = {
 	.id = -1,
 	.num_resources = ARRAY_SIZE(keypad_resources),
 	.resource = keypad_resources,
-};
\ No newline at end of file
+};
diff --git a/arch/arm/mach-ux500/include/mach/devices.h b/arch/arm/mach-ux500/include/mach/devices.h
index 4082692c543..d23e7a30439 100644
--- a/arch/arm/mach-ux500/include/mach/devices.h
+++ b/arch/arm/mach-ux500/include/mach/devices.h
@@ -26,6 +26,7 @@ extern struct platform_device u5500_thsens_device;
 extern struct platform_device u8500_thsens_device;
 extern struct platform_device ux500_ske_keypad_device;
 extern struct platform_device u8500_wdt_device;
+extern struct platform_device u8500_hsi_device;
 extern struct platform_device ux500_mmio_device;
 extern struct platform_device u5500_mmio_device;