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Diffstat (limited to 'board/gdsys/p1022/diu.c')
-rw-r--r-- | board/gdsys/p1022/diu.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/board/gdsys/p1022/diu.c b/board/gdsys/p1022/diu.c deleted file mode 100644 index 9a5d3c11e14..00000000000 --- a/board/gdsys/p1022/diu.c +++ /dev/null @@ -1,85 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2010-2011 Freescale Semiconductor, Inc. - * Authors: Timur Tabi <timur@freescale.com> - * - * FSL DIU Framebuffer driver - */ - -#include <common.h> -#include <clock_legacy.h> -#include <command.h> -#include <log.h> -#include <linux/ctype.h> -#include <asm/io.h> -#include <stdio_dev.h> -#include <video_fb.h> -#include <fsl_diu_fb.h> - -#define PMUXCR_ELBCDIU_MASK 0xc0000000 -#define PMUXCR_ELBCDIU_NOR16 0x80000000 -#define PMUXCR_ELBCDIU_DIU 0x40000000 - -/* - * DIU Area Descriptor - * - * Note that we need to byte-swap the value before it's written to the AD - * register. So even though the registers don't look like they're in the same - * bit positions as they are on the MPC8610, the same value is written to the - * AD register on the MPC8610 and on the P1022. - */ -#define AD_BYTE_F 0x10000000 -#define AD_ALPHA_C_SHIFT 25 -#define AD_BLUE_C_SHIFT 23 -#define AD_GREEN_C_SHIFT 21 -#define AD_RED_C_SHIFT 19 -#define AD_PIXEL_S_SHIFT 16 -#define AD_COMP_3_SHIFT 12 -#define AD_COMP_2_SHIFT 8 -#define AD_COMP_1_SHIFT 4 -#define AD_COMP_0_SHIFT 0 - -/* - * Variables used by the DIU/LBC switching code. It's safe to makes these - * global, because the DIU requires DDR, so we'll only run this code after - * relocation. - */ -static u32 pmuxcr; - -void diu_set_pixel_clock(unsigned int pixclock) -{ - ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - unsigned long speed_ccb, temp; - u32 pixval; - - speed_ccb = get_bus_freq(0); - temp = 1000000000 / pixclock; - temp *= 1000; - pixval = speed_ccb / temp; - debug("DIU pixval = %u\n", pixval); - - /* Modify PXCLK in GUTS CLKDVDR */ - temp = in_be32(&gur->clkdvdr) & 0x2000FFFF; - out_be32(&gur->clkdvdr, temp); /* turn off clock */ - out_be32(&gur->clkdvdr, temp | 0x80000000 | ((pixval & 0x1F) << 16)); -} - -int platform_diu_init(unsigned int xres, unsigned int yres, const char *port) -{ - ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - u32 pixel_format; - - pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) | - (0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) | - (2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) | - (8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) | - (8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT)); - - printf("DIU: Switching to %ux%u\n", xres, yres); - - /* Set PMUXCR to switch the muxed pins from the LBC to the DIU */ - clrsetbits_be32(&gur->pmuxcr, PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_DIU); - pmuxcr = in_be32(&gur->pmuxcr); - - return fsl_diu_init(xres, yres, pixel_format, 0); -} |