1 files changed, 0 insertions, 140 deletions
diff --git a/include/asm-arm/arch-rpc/acornfb.h b/include/asm-arm/arch-rpc/acornfb.h
deleted file mode 100644
index ecb7733a094..00000000000
--- a/include/asm-arm/arch-rpc/acornfb.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- *  linux/include/asm-arm/arch-rpc/acornfb.h
- *
- *  Copyright (C) 1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  AcornFB architecture specific code
- */
-
-#define acornfb_bandwidth(var) ((var)->pixclock * 8 / (var)->bits_per_pixel)
-
-static inline int
-acornfb_valid_pixrate(struct fb_var_screeninfo *var)
-{
-	u_long limit;
-
-	if (!var->pixclock)
-		return 0;
-
-	/*
-	 * Limits below are taken from RISC OS bandwidthlimit file
-	 */
-	if (current_par.using_vram) {
-		if (current_par.vram_half_sam == 2048)
-			limit = 6578;
-		else
-			limit = 13157;
-	} else {
-		limit = 26315;
-	}
-
-	return acornfb_bandwidth(var) >= limit;
-}
-
-/*
- * Try to find the best PLL parameters for the pixel clock.
- * This algorithm seems to give best predictable results,
- * and produces the same values as detailed in the VIDC20
- * data sheet.
- */
-static inline u_int
-acornfb_vidc20_find_pll(u_int pixclk)
-{
-	u_int r, best_r = 2, best_v = 2;
-	int best_d = 0x7fffffff;
-
-	for (r = 2; r <= 32; r++) {
-		u_int rr, v, p;
-		int d;
-
-		rr = 41667 * r;
-
-		v = (rr + pixclk / 2) / pixclk;
-
-		if (v > 32 || v < 2)
-			continue;
-
-		p = (rr + v / 2) / v;
-
-		d = pixclk - p;
-
-		if (d < 0)
-			d = -d;
-
-		if (d < best_d) {
-			best_d = d;
-			best_v = v - 1;
-			best_r = r - 1;
-		}
-
-		if (d == 0)
-			break;
-	}
-
-	return best_v << 8 | best_r;
-}
-
-static inline void
-acornfb_vidc20_find_rates(struct vidc_timing *vidc,
-			  struct fb_var_screeninfo *var)
-{
-	u_int div;
-
-	/* Select pixel-clock divisor to keep PLL in range */
-	div = var->pixclock / 9090; /*9921*/
-
-	/* Limit divisor */
-	if (div == 0)
-		div = 1;
-	if (div > 8)
-		div = 8;
-
-	/* Encode divisor to VIDC20 setting */
-	switch (div) {
-	case 1:	vidc->control |= VIDC20_CTRL_PIX_CK;  break;
-	case 2:	vidc->control |= VIDC20_CTRL_PIX_CK2; break;
-	case 3:	vidc->control |= VIDC20_CTRL_PIX_CK3; break;
-	case 4:	vidc->control |= VIDC20_CTRL_PIX_CK4; break;
-	case 5:	vidc->control |= VIDC20_CTRL_PIX_CK5; break;
-	case 6:	vidc->control |= VIDC20_CTRL_PIX_CK6; break;
-	case 7:	vidc->control |= VIDC20_CTRL_PIX_CK7; break;
-	case 8: vidc->control |= VIDC20_CTRL_PIX_CK8; break;
-	}
-
-	/*
-	 * With VRAM, the FIFO can be set to the highest possible setting
-	 * because there are no latency considerations for other memory
-	 * accesses. However, in 64 bit bus mode the FIFO preload value
-	 * must not be set to VIDC20_CTRL_FIFO_28 because this will let
-	 * the FIFO overflow. See VIDC20 manual page 33 (6.0 Setting the
-	 * FIFO preload value).
-	 */
-	if (current_par.using_vram) {
-		if (current_par.vram_half_sam == 2048)
-			vidc->control |= VIDC20_CTRL_FIFO_24;
-		else
-			vidc->control |= VIDC20_CTRL_FIFO_28;
-	} else {
-		unsigned long bandwidth = acornfb_bandwidth(var);
-
-		/* Encode bandwidth as VIDC20 setting */
-		if (bandwidth > 33334)		/* < 30.0MB/s */
-			vidc->control |= VIDC20_CTRL_FIFO_16;
-		else if (bandwidth > 26666)	/* < 37.5MB/s */
-			vidc->control |= VIDC20_CTRL_FIFO_20;
-		else if (bandwidth > 22222)	/* < 45.0MB/s */
-			vidc->control |= VIDC20_CTRL_FIFO_24;
-		else				/* > 45.0MB/s */
-			vidc->control |= VIDC20_CTRL_FIFO_28;
-	}
-
-	/* Find the PLL values */
-	vidc->pll_ctl = acornfb_vidc20_find_pll(var->pixclock / div);
-}
-
-#define acornfb_default_control()	(VIDC20_CTRL_PIX_VCLK)
-#define acornfb_default_econtrol()	(VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3))