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Message-Id: <1238078974-26040-1-git-send-email-dg@emlix.com>
Date: Thu, 26 Mar 2009 15:49:30 +0100
From: Daniel Glöckner <dg@...ix.com>
To: Chris Zankel <chris@...kel.net>
Cc: linux-kernel@...r.kernel.org,
Daniel Glöckner <dg@...ix.com>
Subject: [patch 1/5] xtensa: add s6000 data port to s6105 platform
Signed-off-by: Daniel Glöckner <dg@...ix.com>
---
arch/xtensa/platforms/s6105/device.c | 40 ++++++++++++++++++++
arch/xtensa/platforms/s6105/include/platform/irq.h | 1 +
arch/xtensa/platforms/s6105/setup.c | 2 +
3 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
index f7af6d2..9238d24 100644
--- a/arch/xtensa/platforms/s6105/device.c
+++ b/arch/xtensa/platforms/s6105/device.c
@@ -22,6 +22,7 @@
#include <linux/spi/mmc_spi.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_s6000.h>
+#include <media/s6dp-link.h>
#include <variant/hardware.h>
#include <variant/dmac.h>
@@ -53,6 +54,14 @@ static const signed char i2c_irq_mappings[] = {
-1
};
+static const signed char dp_irq_mappings[] = {
+ S6_INTC_DMA_DPTERMCNT(0),
+ S6_INTC_DMA_DPTERMCNT(1),
+ S6_INTC_DMA_DPTERMCNT(2),
+ S6_INTC_DMA_DPTERMCNT(3),
+ -1
+};
+
static const signed char isef_irq_mappings[] = {
S6_INTC_DMA_LMSPENDCNT(11),
-1
@@ -75,6 +84,7 @@ const signed char *platform_irq_mappings[NR_IRQS] = {
[UART_INTNUM] = uart_irq_mappings,
[GMAC_INTNUM] = gmac_irq_mappings,
[I2C_INTNUM] = i2c_irq_mappings,
+ [DP_INTNUM] = dp_irq_mappings,
[ISEF_INTNUM] = isef_irq_mappings,
[I2S_INTNUM] = i2s_irq_mappings,
[SPI_INTNUM] = spi_irq_mappings,
@@ -191,6 +201,10 @@ static struct resource s6_i2c_resource[] = {
#define S6I2C_ADDR_CDCE906 0x69
#define S6I2C_ADDR_PCA9543 0x73
+static struct s6dp_link s6dp_links[] = {
+ { }
+};
+
static struct i2c_board_info __initdata s6_i2c_devices[] = {
{
I2C_BOARD_INFO("24c02", S6I2C_ADDR_AT24HC02B),
@@ -355,6 +369,23 @@ static struct spi_board_info __initdata s6_spi_devices[] = {
},
};
+static struct resource s6_dp_resource[] = {
+ {
+ .start = (resource_size_t)S6_REG_DP,
+ .end = (resource_size_t)S6_REG_DP + 0x10000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = (resource_size_t)S6_REG_DPDMA,
+ .end = (resource_size_t)S6_REG_DPDMA + 0x10000 - 1,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .start = (resource_size_t)DP_INTNUM,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static struct platform_device platform_devices[] = {
{
.name = "serial8250",
@@ -391,6 +422,15 @@ static struct platform_device platform_devices[] = {
.platform_data = &s6_spi_pdata,
},
},
+ {
+ .name = "s6dp",
+ .id = -1,
+ .resource = s6_dp_resource,
+ .num_resources = ARRAY_SIZE(s6_dp_resource),
+ .dev = {
+ .platform_data = &s6dp_links,
+ },
+ },
};
static int __init device_init(void)
diff --git a/arch/xtensa/platforms/s6105/include/platform/irq.h b/arch/xtensa/platforms/s6105/include/platform/irq.h
index 84c972f..65f6d92 100644
--- a/arch/xtensa/platforms/s6105/include/platform/irq.h
+++ b/arch/xtensa/platforms/s6105/include/platform/irq.h
@@ -5,6 +5,7 @@
#define UART_INTNUM 4
#define GMAC_INTNUM 5
#define I2C_INTNUM 6
+#define DP_INTNUM 7
#define ISEF_INTNUM 8
#define I2S_INTNUM 10
#define SPI_INTNUM 11
diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c
index bbd1730..87ae88c 100644
--- a/arch/xtensa/platforms/s6105/setup.c
+++ b/arch/xtensa/platforms/s6105/setup.c
@@ -46,12 +46,14 @@ void __init platform_setup(char **cmdline)
reg &= ~(1 << S6_GREG1_BLOCK_SB);
reg &= ~(1 << S6_GREG1_BLOCK_GMAC);
reg &= ~(1 << S6_GREG1_BLOCK_I2S);
+ reg &= ~(1 << S6_GREG1_BLOCK_DP);
writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE);
reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA);
reg |= 1 << S6_GREG1_BLOCK_SB;
reg |= 1 << S6_GREG1_BLOCK_GMAC;
reg |= 1 << S6_GREG1_BLOCK_I2S;
+ reg |= 1 << S6_GREG1_BLOCK_DP;
writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA);
printk(KERN_NOTICE "S6105 on Stretch S6000 - "
--
1.6.2.107.ge47ee
--
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