[PATCH 2/2] mach-ux500: platform data for ST-E HSI controller
From: Linus Walleij
Date: Wed May 25 2011 - 12:27:59 EST
From: Pawel Szyszuk <pawel.szyszuk@xxxxxxxxxxxxxx>
Signed-off-by: Pawel Szyszuk <pawel.szyszuk@xxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
arch/arm/mach-ux500/board-mop500-pins.c | 10 +++
arch/arm/mach-ux500/board-mop500.c | 65 +++++++++++++++
arch/arm/mach-ux500/clock.c | 8 +-
arch/arm/mach-ux500/devices-db8500.c | 118 +++++++++++++++++++++++++++
arch/arm/mach-ux500/include/mach/devices.h | 1 +
arch/arm/mach-ux500/include/mach/hsi.h | 122 ++++++++++++++++++++++++++++
6 files changed, 320 insertions(+), 4 deletions(-)
create mode 100644 arch/arm/mach-ux500/include/mach/hsi.h
diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c
index fd4cf1c..030324f1 100644
--- a/arch/arm/mach-ux500/board-mop500-pins.c
+++ b/arch/arm/mach-ux500/board-mop500-pins.c
@@ -123,6 +123,16 @@ static pin_cfg_t mop500_pins_common[] = {
/* Display & HDMI HW sync */
GPIO68_LCD_VSI0 | PIN_INPUT_PULLUP,
GPIO69_LCD_VSI1 | PIN_INPUT_PULLUP,
+
+ /* 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 */
+ GPIO226_GPIO | PIN_OUTPUT_HIGH, /* AC_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 6e1907fa..b1cc44a 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -14,6 +14,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
+#include <linux/hsi/hsi.h>
#include <linux/gpio.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl022.h>
@@ -233,6 +234,62 @@ U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
+#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
+
static void __init mop500_i2c_init(void)
{
db8500_add_i2c0(&u8500_i2c0_data);
@@ -292,6 +349,9 @@ static void mop500_prox_deactivate(struct device *dev)
/* add any platform devices here - TODO */
static struct platform_device *platform_devs[] __initdata = {
&mop500_gpio_keys_device,
+#ifdef CONFIG_HSI
+ &u8500_hsi_device,
+#endif
};
#ifdef CONFIG_STE_DMA40
@@ -456,6 +516,11 @@ static void __init mop500_init_machine(void)
i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
i2c_register_board_info(2, mop500_i2c2_devices,
ARRAY_SIZE(mop500_i2c2_devices));
+#ifdef CONFIG_HSI
+ hsi_register_board_info(u8500_hsi_devices,
+ ARRAY_SIZE(u8500_hsi_devices));
+#endif
+
}
MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
index 32ce908..cf6ff61 100644
--- a/arch/arm/mach-ux500/clock.c
+++ b/arch/arm/mach-ux500/clock.c
@@ -483,8 +483,8 @@ static struct clk_lookup u8500_common_clks[] = {
CLK(slimclk, "slim", NULL),
CLK(lcdclk, "lcd", NULL),
CLK(bmlclk, "bml", NULL),
- CLK(hsitxclk, "stm-hsi.0", NULL),
- CLK(hsirxclk, "stm-hsi.1", NULL),
+ CLK(hsitxclk, "ste_hsi.0", "hsit_hsitxclk"),
+ CLK(hsirxclk, "ste_hsi.0", "hsir_hsirxclk"),
CLK(hdmiclk, "hdmi", NULL),
CLK(apeatclk, "apeat", NULL),
CLK(apetraceclk, "apetrace", NULL),
@@ -544,8 +544,8 @@ static struct clk_lookup u8500_v1_clks[] = {
/* Peripheral Cluster #2 */
CLK(gpio1_v1, "gpio.6", NULL),
CLK(gpio1_v1, "gpio.7", NULL),
- CLK(ssitx_v1, "ssitx", NULL),
- CLK(ssirx_v1, "ssirx", NULL),
+ CLK(ssitx_v1, "ste_hsi.0", "hsit_hclk"),
+ CLK(ssirx_v1, "ste_hsi.0", "hsir_hclk"),
CLK(spi0_v1, "spi0", NULL),
CLK(sdi3_v1, "sdi3", NULL),
CLK(sdi1_v1, "sdi1", NULL),
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 73b1740..2e685c1 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -18,6 +18,7 @@
#include <mach/hardware.h>
#include <mach/setup.h>
+#include <mach/hsi.h>
#include "ste-dma40-db8500.h"
static struct resource dma40_resources[] = {
@@ -195,3 +196,120 @@ struct platform_device u8500_ske_keypad_device = {
.num_resources = ARRAY_SIZE(keypad_resources),
.resource = keypad_resources,
};
+
+/*
+ * 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 = false, \
+ .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 = false, \
+ .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)
+};
diff --git a/arch/arm/mach-ux500/include/mach/devices.h b/arch/arm/mach-ux500/include/mach/devices.h
index 020b636..176cda7 100644
--- a/arch/arm/mach-ux500/include/mach/devices.h
+++ b/arch/arm/mach-ux500/include/mach/devices.h
@@ -17,6 +17,7 @@ extern struct amba_device ux500_pl031_device;
extern struct platform_device u8500_dma40_device;
extern struct platform_device ux500_ske_keypad_device;
+extern struct platform_device u8500_hsi_device;
void dma40_u8500ed_fixup(void);
diff --git a/arch/arm/mach-ux500/include/mach/hsi.h b/arch/arm/mach-ux500/include/mach/hsi.h
new file mode 100644
index 0000000..030e35e
--- /dev/null
+++ b/arch/arm/mach-ux500/include/mach/hsi.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ */
+
+#ifndef __MACH_HSI_H
+#define __MACH_HSI_H
+
+#include <plat/ste_dma40.h>
+
+/* HSIT register offsets */
+#define STE_HSI_TX_ID 0x000
+#define STE_HSI_TX_MODE 0x004
+#define STE_HSI_TX_STATE 0x008
+#define STE_HSI_TX_IOSTATE 0x00C
+#define STE_HSI_TX_BUFSTATE 0x010
+#define STE_HSI_TX_DIVISOR 0x014
+#define STE_HSI_TX_PARITY 0x018
+#define STE_HSI_TX_BREAK 0x01C
+#define STE_HSI_TX_CHANNELS 0x020
+#define STE_HSI_TX_FLUSHBITS 0x024
+#define STE_HSI_TX_PRIORITY 0x028
+#define STE_HSI_TX_BURSTLEN 0x02C
+#define STE_HSI_TX_PREAMBLE 0x030
+#define STE_HSI_TX_DATASWAP 0x034
+#define STE_HSI_TX_FRAMELENX 0x080
+#define STE_HSI_TX_BUFFERX 0x0C0
+#define STE_HSI_TX_BASEX 0x100
+#define STE_HSI_TX_SPANX 0x140
+#define STE_HSI_TX_GAUGEX 0x180
+#define STE_HSI_TX_WATERMARKX 0x1C0
+#define STE_HSI_TX_DMAEN 0x200
+#define STE_HSI_TX_WATERMARKIS 0x204
+#define STE_HSI_TX_WATERMARKIM 0x208
+#define STE_HSI_TX_WATERMARKIC 0x20C
+#define STE_HSI_TX_WATERMARKID 0x210
+#define STE_HSI_TX_PERIPHID0 0xFE0
+#define STE_HSI_TX_PERIPHID1 0xFE4
+#define STE_HSI_TX_PERIPHID2 0xFE8
+#define STE_HSI_TX_PERIPHID3 0xFEC
+
+/* HSIR register offsets */
+#define STE_HSI_RX_ID 0x000
+#define STE_HSI_RX_MODE 0x004
+#define STE_HSI_RX_STATE 0x008
+#define STE_HSI_RX_BUFSTATE 0x00C
+#define STE_HSI_RX_THRESHOLD 0x010
+#define STE_HSI_RX_PARITY 0x014
+#define STE_HSI_RX_DETECTOR 0x018
+#define STE_HSI_RX_EXCEP 0x01C
+#define STE_HSI_RX_ACK 0x020
+#define STE_HSI_RX_CHANNELS 0x024
+#define STE_HSI_RX_REALTIME 0x028
+#define STE_HSI_RX_OVERRUN 0x02C
+#define STE_HSI_RX_OVERRUNACK 0x030
+#define STE_HSI_RX_PREAMBLE 0x034
+#define STE_HSI_RX_PIPEGAUGE 0x038
+#define STE_HSI_RX_STATICCONFID 0x03C
+#define STE_HSI_RX_BUFFERX 0x080
+#define STE_HSI_RX_FRAMELENX 0x0C0
+#define STE_HSI_RX_BASEX 0x100
+#define STE_HSI_RX_SPANX 0x140
+#define STE_HSI_RX_GAUGEX 0x180
+#define STE_HSI_RX_WATERMARKX 0x1C0
+#define STE_HSI_RX_DMAEN 0x200
+#define STE_HSI_RX_WATERMARKIS 0x204
+#define STE_HSI_RX_WATERMARKIM 0x208
+#define STE_HSI_RX_WATERMARKIC 0x20C
+#define STE_HSI_RX_WATERMARKID 0x210
+#define STE_HSI_RX_OVERRUNMIS 0x214
+#define STE_HSI_RX_OVERRUNIM 0x218
+#define STE_HSI_RX_EXCEPMIS 0x21C
+#define STE_HSI_RX_EXCEPIM 0x220
+#define STE_HSI_RX_PERIPHID0 0xFE0
+#define STE_HSI_RX_PERIPHID1 0xFE4
+#define STE_HSI_RX_PERIPHID2 0xFE8
+#define STE_HSI_RX_PERIPHID3 0xFEC
+
+/* HSI states */
+#define STE_HSI_STATE_IDLE 0x00
+#define STE_HSI_STATE_START 0x01
+#define STE_HSI_STATE_TRANSMIT 0x02
+#define STE_HSI_STATE_BREAK 0x03
+#define STE_HSI_STATE_FLUSH 0x04
+#define STE_HSI_STATE_HALT 0x05
+
+/* HSI exceptions */
+#define STE_HSI_EXCEP_TIMEOUT 0x01
+#define STE_HSI_EXCEP_OVERRUN 0x02
+#define STE_HSI_EXCEP_BREAK 0x04
+#define STE_HSI_EXCEP_PARITY 0x08
+
+/* HSI modes */
+#define STE_HSI_MODE_SLEEP 0x00
+#define STE_HSI_MODE_STREAM 0x01
+#define STE_HSI_MODE_FRAME 0x02
+#define STE_HSI_MODE_PIPELINED 0x03
+#define STE_HSI_MODE_FAILSAFE 0x04
+
+#define STE_HSI_MAX_BUFFERS 32
+
+/* Max channels of STE HSI controller */
+#define STE_HSI_MAX_CHANNELS 4
+
+struct stedma40_chan_cfg;
+
+struct ste_hsi_port_cfg {
+#ifdef CONFIG_STE_DMA40
+ bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
+ struct stedma40_chan_cfg *dma_tx_cfg;
+ struct stedma40_chan_cfg *dma_rx_cfg;
+#endif
+};
+
+struct ste_hsi_platform_data {
+ int num_ports;
+ int use_dma;
+ struct ste_hsi_port_cfg *port_cfg;
+};
+
+#endif
--
1.7.3.2
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