arm/imx21: Framebuffer support for i.MX21

This patch mimicks what Martin wrote on the mailing list:

* move arch/arm/mach-imx/include/mach/imxfb.h into
  arch/arm/mach-mxc/include/mach/imxfb.h
* changes Kconfig so that CONFIG_FB_IMX is selectable
* adds a platform device (copied from some pengutronix
  patches)

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 83 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/include/mach/imxfb.h b/arch/arm/plat-mxc/include/mach/imxfb.h
new file mode 100644
index 0000000..870d0d9
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/imxfb.h
@@ -0,0 +1,83 @@
+/*
+ * This structure describes the machine which we are running on.
+ */
+
+#define PCR_TFT		(1 << 31)
+#define PCR_COLOR	(1 << 30)
+#define PCR_PBSIZ_1	(0 << 28)
+#define PCR_PBSIZ_2	(1 << 28)
+#define PCR_PBSIZ_4	(2 << 28)
+#define PCR_PBSIZ_8	(3 << 28)
+#define PCR_BPIX_1	(0 << 25)
+#define PCR_BPIX_2	(1 << 25)
+#define PCR_BPIX_4	(2 << 25)
+#define PCR_BPIX_8	(3 << 25)
+#define PCR_BPIX_12	(4 << 25)
+#define PCR_BPIX_16	(4 << 25)
+#define PCR_PIXPOL	(1 << 24)
+#define PCR_FLMPOL	(1 << 23)
+#define PCR_LPPOL	(1 << 22)
+#define PCR_CLKPOL	(1 << 21)
+#define PCR_OEPOL	(1 << 20)
+#define PCR_SCLKIDLE	(1 << 19)
+#define PCR_END_SEL	(1 << 18)
+#define PCR_END_BYTE_SWAP (1 << 17)
+#define PCR_REV_VS	(1 << 16)
+#define PCR_ACD_SEL	(1 << 15)
+#define PCR_ACD(x)	(((x) & 0x7f) << 8)
+#define PCR_SCLK_SEL	(1 << 7)
+#define PCR_SHARP	(1 << 6)
+#define PCR_PCD(x)	((x) & 0x3f)
+
+#define PWMR_CLS(x)	(((x) & 0x1ff) << 16)
+#define PWMR_LDMSK	(1 << 15)
+#define PWMR_SCR1	(1 << 10)
+#define PWMR_SCR0	(1 << 9)
+#define PWMR_CC_EN	(1 << 8)
+#define PWMR_PW(x)	((x) & 0xff)
+
+#define LSCR1_PS_RISE_DELAY(x)    (((x) & 0x7f) << 26)
+#define LSCR1_CLS_RISE_DELAY(x)   (((x) & 0x3f) << 16)
+#define LSCR1_REV_TOGGLE_DELAY(x) (((x) & 0xf) << 8)
+#define LSCR1_GRAY2(x)            (((x) & 0xf) << 4)
+#define LSCR1_GRAY1(x)            (((x) & 0xf))
+
+#define DMACR_BURST	(1 << 31)
+#define DMACR_HM(x)	(((x) & 0xf) << 16)
+#define DMACR_TM(x)	((x) & 0xf)
+
+struct imx_fb_platform_data {
+	u_long		pixclock;
+
+	u_short		xres;
+	u_short		yres;
+
+	u_int		nonstd;
+	u_char		bpp;
+	u_char		hsync_len;
+	u_char		left_margin;
+	u_char		right_margin;
+
+	u_char		vsync_len;
+	u_char		upper_margin;
+	u_char		lower_margin;
+	u_char		sync;
+
+	u_int		cmap_greyscale:1,
+			cmap_inverse:1,
+			cmap_static:1,
+			unused:29;
+
+	u_int		pcr;
+	u_int		pwmr;
+	u_int		lscr1;
+	u_int		dmacr;
+
+	u_char * fixed_screen_cpu;
+	dma_addr_t fixed_screen_dma;
+
+	void (*lcd_power)(int);
+	void (*backlight_power)(int);
+};
+
+void set_imx_fb_info(struct imx_fb_platform_data *);