8610: Add 8610 DIU display driver

1280x1024 and 1024x768 @ 32 bpp are supported now.
DVI, Single-link LVDS, Double-link LVDS are all supported.

Environmental variable "monitor" is used to specify monitor port.

A new command "diufb" is introduced to reinitialize monitor
and display a BMP file in the memory. So far, 1-bit, 4-bit,
8-bit and 24-bit BMP formats are supported.

    diufb init
        - initialize the diu driver
    Enable the port specified in the environmental variable "monitor"

    diufb addr
        - display bmp file in memory.
    The bmp image should be no bigger than the resolution, 1280x1024
    for DVI and double-link LVDS, 1024x768 for single-link LVDS.

Note, this driver allocate memory but doesn't free it after use
It is written on purpose -- to avoid a failure of reallocation
due to memory fragement.

ECC of DDR is disabled for DIU performance. L2 data cache is also disabled.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Jon loeliger <jdl@freescale.com>

1 files changed, 42 insertions, 3 deletions

diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd.c b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
index 63790ca..617881a 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
@@ -54,7 +54,47 @@ int board_early_init_f(void)
 	volatile immap_t *immap = (immap_t *)CFG_IMMR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 
-	gur->gpiocr |= 0x888a5500; /* DIU16, IR1, UART0, UART2 */
+	gur->gpiocr |= 0x88aa5500; /* DIU16, IR1, UART0, UART2 */
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	u8 tmp_val, version;
+
+	/*Do not use 8259PIC*/
+	tmp_val = in8(PIXIS_BASE + PIXIS_BRDCFG0);
+	out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val | 0x80);
+
+	/*For FPGA V7 or higher, set the IRQMAPSEL to 0 to use MAP0 interrupt*/
+	version = in8(PIXIS_BASE + PIXIS_PVER);
+	if(version >= 0x07) {
+		tmp_val = in8(PIXIS_BASE + PIXIS_BRDCFG0);
+		out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val & 0xbf);
+	}
+
+	/* Using this for DIU init before the driver in linux takes over
+	 *  Enable the TFP410 Encoder (I2C address 0x38)
+	 */
+
+	tmp_val = 0xBF;
+	i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
+	/* Verify if enabled */
+	tmp_val = 0;
+	i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
+	debug("DVI Encoder Read: 0x%02lx\n",tmp_val);
+
+	tmp_val = 0x10;
+	i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
+	/* Verify if enabled */
+	tmp_val = 0;
+	i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
+	debug("DVI Encoder Read: 0x%02lx\n",tmp_val);
+
+#ifdef CONFIG_FSL_DIU_FB
+	mpc8610hpcd_diu_init();
+#endif
 
 	return 0;
 }
@@ -62,7 +102,6 @@ int board_early_init_f(void)
 int checkboard(void)
 {
 	volatile immap_t *immap = (immap_t *)CFG_IMMR;
-	volatile ccsr_lbc_t *memctl = &immap->im_lbc;
 	volatile ccsr_local_mcm_t *mcm = &immap->im_local_mcm;
 
 	puts("Board: MPC8610HPCD\n");
@@ -468,7 +507,7 @@ ft_board_setup(void *blob, bd_t *bd)
 unsigned long
 get_board_sys_clk(ulong dummy)
 {
-	u8 i, go_bit, rd_clks;
+	u8 i;
 	ulong val = 0;
 	ulong a;