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authorBaruch Siach <baruch@tkos.co.il>2010-06-21 08:16:00 +0300
committerSascha Hauer <s.hauer@pengutronix.de>2010-07-26 14:18:29 +0200
commitf747847e8f0312ddc50fe7cb7ed4f6399ec154e0 (patch)
treea509e75f83c2835a756ef2c1a1c256c9802268b1 /arch/arm/mach-mx25
parent94d359586480fd6d22eccec5dc3693d7d0f68928 (diff)
mx25: add support for the CSI device
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx25')
-rw-r--r--arch/arm/mach-mx25/clock.c14
-rw-r--r--arch/arm/mach-mx25/devices.c22
-rw-r--r--arch/arm/mach-mx25/devices.h1
3 files changed, 35 insertions, 2 deletions
diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c
index 2bb4f1d73cbb..1a58cae4d5e8 100644
--- a/arch/arm/mach-mx25/clock.c
+++ b/arch/arm/mach-mx25/clock.c
@@ -139,6 +139,11 @@ static unsigned long get_rate_lcdc(struct clk *clk)
return get_rate_per(7);
}
+static unsigned long get_rate_csi(struct clk *clk)
+{
+ return get_rate_per(0);
+}
+
static unsigned long get_rate_otg(struct clk *clk)
{
unsigned long cctl = readl(CRM_BASE + CCM_CCTL);
@@ -211,6 +216,8 @@ DEFINE_CLOCK(cspi3_clk, 0, CCM_CGCR1, 7, get_rate_ipg, NULL, NULL);
DEFINE_CLOCK(fec_ahb_clk, 0, CCM_CGCR0, 23, NULL, NULL, NULL);
DEFINE_CLOCK(lcdc_ahb_clk, 0, CCM_CGCR0, 24, NULL, NULL, NULL);
DEFINE_CLOCK(lcdc_per_clk, 0, CCM_CGCR0, 7, NULL, NULL, &lcdc_ahb_clk);
+DEFINE_CLOCK(csi_ahb_clk, 0, CCM_CGCR0, 18, get_rate_csi, NULL, NULL);
+DEFINE_CLOCK(csi_per_clk, 0, CCM_CGCR0, 0, get_rate_csi, NULL, &csi_ahb_clk);
DEFINE_CLOCK(uart1_clk, 0, CCM_CGCR2, 14, get_rate_uart, NULL, &uart_per_clk);
DEFINE_CLOCK(uart2_clk, 0, CCM_CGCR2, 15, get_rate_uart, NULL, &uart_per_clk);
DEFINE_CLOCK(uart3_clk, 0, CCM_CGCR2, 16, get_rate_uart, NULL, &uart_per_clk);
@@ -232,6 +239,7 @@ DEFINE_CLOCK(wdt_clk, 0, CCM_CGCR2, 19, get_rate_ipg, NULL, NULL);
DEFINE_CLOCK(ssi1_clk, 0, CCM_CGCR2, 11, get_rate_ssi1, NULL, &ssi1_per_clk);
DEFINE_CLOCK(ssi2_clk, 1, CCM_CGCR2, 12, get_rate_ssi2, NULL, &ssi2_per_clk);
DEFINE_CLOCK(audmux_clk, 0, CCM_CGCR1, 0, NULL, NULL, NULL);
+DEFINE_CLOCK(csi_clk, 0, CCM_CGCR1, 4, get_rate_csi, NULL, &csi_per_clk);
#define _REGISTER_CLOCK(d, n, c) \
{ \
@@ -269,6 +277,7 @@ static struct clk_lookup lookups[] = {
_REGISTER_CLOCK("imx-wdt.0", NULL, wdt_clk)
_REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk)
_REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk)
+ _REGISTER_CLOCK("mx2-camera.0", NULL, csi_clk)
_REGISTER_CLOCK(NULL, "audmux", audmux_clk)
};
@@ -284,8 +293,9 @@ int __init mx25_clocks_init(void)
__raw_writel((0xf << 16) | (3 << 26), CRM_BASE + CCM_CGCR1);
__raw_writel((1 << 5), CRM_BASE + CCM_CGCR2);
- /* Clock source for lcdc is upll */
- __raw_writel(__raw_readl(CRM_BASE+0x64) | (1 << 7), CRM_BASE + 0x64);
+ /* Clock source for lcdc and csi is upll */
+ __raw_writel(__raw_readl(CRM_BASE+0x64) | (1 << 7) | (1 << 0),
+ CRM_BASE + 0x64);
mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
diff --git a/arch/arm/mach-mx25/devices.c b/arch/arm/mach-mx25/devices.c
index baf0a7913644..82d3e53f01f2 100644
--- a/arch/arm/mach-mx25/devices.c
+++ b/arch/arm/mach-mx25/devices.c
@@ -571,3 +571,25 @@ struct platform_device imx_ssi_device1 = {
.num_resources = ARRAY_SIZE(imx_ssi_resources1),
.resource = imx_ssi_resources1,
};
+
+static struct resource mx25_csi_resources[] = {
+ {
+ .start = MX25_CSI_BASE_ADDR,
+ .end = MX25_CSI_BASE_ADDR + 0xfff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = MX25_INT_CSI,
+ .flags = IORESOURCE_IRQ
+ },
+};
+
+struct platform_device mx25_csi_device = {
+ .name = "mx2-camera",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(mx25_csi_resources),
+ .resource = mx25_csi_resources,
+ .dev = {
+ .coherent_dma_mask = 0xffffffff,
+ },
+};
diff --git a/arch/arm/mach-mx25/devices.h b/arch/arm/mach-mx25/devices.h
index 290843bdddf3..00e29f57a596 100644
--- a/arch/arm/mach-mx25/devices.h
+++ b/arch/arm/mach-mx25/devices.h
@@ -25,3 +25,4 @@ extern struct platform_device mxc_wdt;
extern struct platform_device mx25_kpp_device;
extern struct platform_device imx_ssi_device0;
extern struct platform_device imx_ssi_device1;
+extern struct platform_device mx25_csi_device;