[PATCH] ARM: DaVinci: DM646x Video: Platform and board specific setup
From: Chaithrika U S <chaithrika@ti.com>
Platform specific display device setup for DM646x EVM
Add platform device and resource structures. Also define a platform specific
clock setup function that can be accessed by the driver to configure the clock
and CPLD.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Manjunath Hadli <mrh@ti.com>
Signed-off-by: Brijesh Jadav <brijesh.j@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
arch/arm/mach-davinci/board-dm646x-evm.c | 122 +++++++++++++++++++++++++++
arch/arm/mach-davinci/dm646x.c | 62 ++++++++++++++
arch/arm/mach-davinci/include/mach/dm646x.h | 24 +++++
3 files changed, 208 insertions(+), 0 deletions(-)
@@ -52,6 +52,19 @@
#define DM646X_EVM_PHY_MASK (0x2)
#define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
+#define VIDCLKCTL_OFFSET (0x38)
+#define VSCLKDIS_OFFSET (0x6c)
+
+#define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
+#define VCH2CLK_SYSCLK8 (BIT(9))
+#define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
+#define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
+#define VCH3CLK_SYSCLK8 (BIT(13))
+#define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
+
+#define VIDCH2CLK (BIT(10))
+#define VIDCH3CLK (BIT(11))
+
static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
@@ -207,6 +220,40 @@ static struct at24_platform_data eeprom_info = {
.context = (void *)0x7f00,
};
+static struct i2c_client *cpld_client;
+
+static int cpld_video_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ cpld_client = client;
+ return 0;
+}
+
+static int __devexit cpld_video_remove(struct i2c_client *client)
+{
+ cpld_client = NULL;
+ return 0;
+}
+
+static const struct i2c_device_id cpld_video_id[] = {
+ { "cpld_video", 0 },
+ { }
+};
+
+static struct i2c_driver cpld_video_driver = {
+ .driver = {
+ .name = "cpld_video",
+ },
+ .probe = cpld_video_probe,
+ .remove = cpld_video_remove,
+ .id_table = cpld_video_id,
+};
+
+static void evm_init_cpld(void)
+{
+ i2c_add_driver(&cpld_video_driver);
+}
+
static struct i2c_board_info __initdata i2c_info[] = {
{
I2C_BOARD_INFO("24c256", 0x50),
@@ -216,6 +263,9 @@ static struct i2c_board_info __initdata i2c_info[] = {
I2C_BOARD_INFO("pcf8574a", 0x38),
.platform_data = &pcf_data,
},
+ {
+ I2C_BOARD_INFO("cpld_video", 0x3B),
+ },
};
static struct davinci_i2c_platform_data i2c_pdata = {
@@ -223,10 +273,81 @@ static struct davinci_i2c_platform_data i2c_pdata = {
.bus_delay = 0 /* usec */,
};
+static int set_vpif_clock(int mux_mode, int hd)
+{
+ int val = 0;
+ int err = 0;
+ unsigned int value;
+ void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
+
+ /* disable the clock */
+ value = __raw_readl(base + VSCLKDIS_OFFSET);
+ value |= (VIDCH3CLK | VIDCH2CLK);
+ __raw_writel(value, base + VSCLKDIS_OFFSET);
+
+ val = i2c_smbus_read_byte(cpld_client);
+ if (val < 0)
+ return val;
+
+ if (mux_mode == 1)
+ val &= ~0x40;
+ else
+ val |= 0x40;
+
+ err = i2c_smbus_write_byte(cpld_client, val);
+ if (err)
+ return err;
+
+ value = __raw_readl(base + VIDCLKCTL_OFFSET);
+ value &= ~(VCH2CLK_MASK);
+ value &= ~(VCH3CLK_MASK);
+
+ if (hd >= 1)
+ value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
+ else
+ value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
+
+ __raw_writel(value, base + VIDCLKCTL_OFFSET);
+
+ /* enable the clock */
+ value = __raw_readl(base + VSCLKDIS_OFFSET);
+ value &= ~(VIDCH3CLK | VIDCH2CLK);
+ __raw_writel(value, base + VSCLKDIS_OFFSET);
+
+ return 0;
+}
+
+static const struct subdev_info dm646x_vpif_subdev[] = {
+ {
+ .addr = 0x2A,
+ .name = "adv7343",
+ },
+ {
+ .addr = 0x2C,
+ .name = "ths7303",
+ },
+};
+
+static const char *output[] = {
+ "Composite",
+ "Component",
+ "S-Video",
+};
+
+static struct vpif_config dm646x_vpif_config = {
+ .set_clock = set_vpif_clock,
+ .subdevinfo = dm646x_vpif_subdev,
+ .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
+ .output = output,
+ .output_count = ARRAY_SIZE(output),
+ .card_name = "DM646x EVM",
+};
+
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
+ evm_init_cpld();
}
static void __init davinci_map_io(void)
@@ -243,6 +364,7 @@ static __init void evm_init(void)
soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY;
+ dm646x_setup_vpif(&dm646x_vpif_config);
}
static __init void davinci_dm646x_evm_irq_init(void)
@@ -31,6 +31,15 @@
#include "clock.h"
#include "mux.h"
+#define DAVINCI_VPIF_BASE (0x01C12000)
+#define VDD3P3V_PWDN_OFFSET (0x48)
+#define VSCLKDIS_OFFSET (0x6C)
+
+#define VDD3P3V_VID_MASK (BIT_MASK(7) | BIT_MASK(6) | BIT_MASK(5) |\
+ BIT_MASK(4))
+#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) | BIT_MASK(9) |\
+ BIT_MASK(8))
+
/*
* Device specific clocks
*/
@@ -587,6 +596,37 @@ static struct platform_device dm646x_edma_device = {
.resource = edma_resources,
};
+static u64 vpif_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource vpif_resource[] = {
+ {
+ .start = DAVINCI_VPIF_BASE,
+ .end = DAVINCI_VPIF_BASE + 0x03fff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT2,
+ .end = IRQ_DM646X_VP_VERTINT2,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT3,
+ .end = IRQ_DM646X_VP_VERTINT3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device vpif_display_dev = {
+ .name = "vpif_display",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .resource = vpif_resource,
+ .num_resources = ARRAY_SIZE(vpif_resource),
+};
+
/*----------------------------------------------------------------------*/
static struct map_desc dm646x_io_desc[] = {
@@ -696,6 +736,28 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.sram_len = SZ_32K,
};
+void dm646x_setup_vpif(struct vpif_config *config)
+{
+ unsigned int value;
+ void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
+
+ value = __raw_readl(base + VSCLKDIS_OFFSET);
+ value &= ~VSCLKDIS_MASK;
+ __raw_writel(value, base + VSCLKDIS_OFFSET);
+
+ value = __raw_readl(base + VDD3P3V_PWDN_OFFSET);
+ value &= ~VDD3P3V_VID_MASK;
+ __raw_writel(value, base + VDD3P3V_PWDN_OFFSET);
+
+ davinci_cfg_reg(DM646X_STSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_STSIMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSIMUX_DISABLE);
+
+ vpif_display_dev.dev.platform_data = config;
+ platform_device_register(&vpif_display_dev);
+}
+
void __init dm646x_init(void)
{
davinci_common_init(&davinci_soc_info_dm646x);
@@ -23,4 +23,28 @@
void __init dm646x_init(void);
+void dm646x_video_init(void);
+
+struct vpif_output {
+ u16 id;
+ const char *name;
+};
+
+struct subdev_info {
+ unsigned short addr;
+ const char *name;
+};
+
+struct vpif_config {
+ int (*set_clock)(int, int);
+ const struct subdev_info *subdevinfo;
+ int subdev_count;
+ const char **output;
+ int output_count;
+ const char *card_name;
+};
+
+
+void dm646x_setup_vpif(struct vpif_config *config);
+
#endif /* __ASM_ARCH_DM646X_H */
--
1.5.6
Hi Mauro, Please pull from http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-dm646x for the following: - ARM: DaVinci: DM646x Video: VPIF driver - ARM: DaVinci: DM646x Video: Add VPIF display driver - ARM: DaVinci: DM646x Video: Makefile and config files modifications for Display - ARM: DaVinci: DM646x Video: Fix compile time warnings for mutex locking Note that these four patches depend on the attached platform patch that should be applied to the git tree first. If possible, it would be great if this (like the vpfe capture driver) can be merged for 2.6.31. Thanks, Hans diffstat: b/linux/drivers/media/video/davinci/Makefile | 9 b/linux/drivers/media/video/davinci/vpif.c | 234 ++ b/linux/drivers/media/video/davinci/vpif.h | 632 +++++++ b/linux/drivers/media/video/davinci/vpif_display.c | 1664 +++++++++++++++++++++ b/linux/drivers/media/video/davinci/vpif_display.h | 175 ++ linux/drivers/media/video/Kconfig | 22 linux/drivers/media/video/Makefile | 2 linux/drivers/media/video/davinci/vpif_display.c | 31 8 files changed, 2761 insertions(+), 8 deletions(-)