mx25: add platform support for imxfb

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

3 files changed, 36 insertions, 0 deletions

diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c
index 744b52a613f..56bf958d8c3 100644
--- a/arch/arm/mach-mx25/clock.c
+++ b/arch/arm/mach-mx25/clock.c
@@ -124,6 +124,11 @@ static unsigned long get_rate_gpt(struct clk *clk)
         return get_rate_per(5);
 }
 
+static unsigned long get_rate_lcdc(struct clk *clk)
+{
+        return get_rate_per(7);
+}
+
 static unsigned long get_rate_otg(struct clk *clk)
 {
         return 48000000; /* FIXME */
@@ -167,6 +172,8 @@ DEFINE_CLOCK(cspi1_clk,  0, CCM_CGCR1,  5, get_rate_ipg, NULL, NULL);
 DEFINE_CLOCK(cspi2_clk,  0, CCM_CGCR1,  6, get_rate_ipg, NULL, NULL);
 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(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);
@@ -183,6 +190,7 @@ DEFINE_CLOCK(tsc_clk,	 0, CCM_CGCR2, 13, get_rate_ipg, NULL, NULL);
 DEFINE_CLOCK(i2c_clk,    0, CCM_CGCR0,  6, get_rate_i2c, NULL, NULL);
 DEFINE_CLOCK(fec_clk,    0, CCM_CGCR1, 15, get_rate_ipg, NULL, &fec_ahb_clk);
 DEFINE_CLOCK(dryice_clk, 0, CCM_CGCR1,  8, get_rate_ipg, NULL, NULL);
+DEFINE_CLOCK(lcdc_clk,   0, CCM_CGCR1, 29, get_rate_lcdc, NULL, &lcdc_per_clk);
 
 #define _REGISTER_CLOCK(d, n, c)        \
         {                               \
@@ -216,6 +224,7 @@ static struct clk_lookup lookups[] = {
         _REGISTER_CLOCK("imx-i2c.2", NULL, i2c_clk)
         _REGISTER_CLOCK("fec.0", NULL, fec_clk)
         _REGISTER_CLOCK("imxdi_rtc.0", NULL, dryice_clk)
+        _REGISTER_CLOCK("imx-fb.0", NULL, lcdc_clk)
 };
 
 int __init mx25_clocks_init(void)
@@ -233,6 +242,9 @@ 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);
+
         mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
 
         return 0;
diff --git a/arch/arm/mach-mx25/devices.c b/arch/arm/mach-mx25/devices.c
index b0b75fc9905..3f4b8a0b5fa 100644
--- a/arch/arm/mach-mx25/devices.c
+++ b/arch/arm/mach-mx25/devices.c
@@ -477,3 +477,26 @@ struct platform_device mx25_rtc_device = {
         .num_resources  = ARRAY_SIZE(mx25_rtc_resources),
         .resource       = mx25_rtc_resources,
 };
+
+static struct resource mx25_fb_resources[] = {
+        {
+                .start  = MX25_LCDC_BASE_ADDR,
+                .end    = MX25_LCDC_BASE_ADDR + 0xfff,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = MX25_INT_LCDC,
+                .end    = MX25_INT_LCDC,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device mx25_fb_device = {
+        .name           = "imx-fb",
+        .id             = 0,
+        .resource       = mx25_fb_resources,
+        .num_resources  = ARRAY_SIZE(mx25_fb_resources),
+        .dev            = {
+                .coherent_dma_mask = 0xFFFFFFFF,
+        },
+};
diff --git a/arch/arm/mach-mx25/devices.h b/arch/arm/mach-mx25/devices.h
index 37e6a082144..39560e13bc0 100644
--- a/arch/arm/mach-mx25/devices.h
+++ b/arch/arm/mach-mx25/devices.h
@@ -20,3 +20,4 @@ extern struct platform_device mxc_i2c_device2;
 extern struct platform_device mx25_fec_device;
 extern struct platform_device mxc_nand_device;
 extern struct platform_device mx25_rtc_device;
+extern struct platform_device mx25_fb_device;