ppc/85xx: Convert MPC8536DS to using board common ICS307 code

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

board/freescale/common/Makefile

@@ -42,6 +42,7 @@ COBJS-$(CONFIG_MPC8541CDS)	+= cds_pci_ft.o
 COBJS-$(CONFIG_MPC8548CDS)	+= cds_pci_ft.o
 COBJS-$(CONFIG_MPC8555CDS)	+= cds_pci_ft.o
 
+COBJS-$(CONFIG_MPC8536DS)	+= ics307_clk.o
 COBJS-$(CONFIG_MPC8572DS)	+= ics307_clk.o
 COBJS-$(CONFIG_P1022DS)		+= ics307_clk.o
 COBJS-$(CONFIG_P2020DS)		+= ics307_clk.o

board/freescale/mpc8536ds/mpc8536ds.c

@@ -350,154 +350,6 @@ int board_early_init_r(void)
 	return 0;
 }
 
-#ifdef CONFIG_GET_CLK_FROM_ICS307
-/* decode S[0-2] to Output Divider (OD) */
-static unsigned char
-ics307_S_to_OD[] = {
-	10, 2, 8, 4, 5, 7, 3, 6
-};
-
-/* Calculate frequency being generated by ICS307-02 clock chip based upon
- * the control bytes being programmed into it. */
-/* XXX: This function should probably go into a common library */
-static unsigned long
-ics307_clk_freq (unsigned char cw0, unsigned char cw1, unsigned char cw2)
-{
-	const unsigned long long InputFrequency = CONFIG_ICS307_REFCLK_HZ;
-	unsigned long VDW = ((cw1 << 1) & 0x1FE) + ((cw2 >> 7) & 1);
-	unsigned long RDW = cw2 & 0x7F;
-	unsigned long OD = ics307_S_to_OD[cw0 & 0x7];
-	unsigned long freq;
-
-	/* CLK1Frequency = InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD) */
-
-	/* cw0:  C1 C0 TTL F1 F0 S2 S1 S0
-	 * cw1:  V8 V7 V6 V5 V4 V3 V2 V1
-	 * cw2:  V0 R6 R5 R4 R3 R2 R1 R0
-	 *
-	 * R6:R0 = Reference Divider Word (RDW)
-	 * V8:V0 = VCO Divider Word (VDW)
-	 * S2:S0 = Output Divider Select (OD)
-	 * F1:F0 = Function of CLK2 Output
-	 * TTL = duty cycle
-	 * C1:C0 = internal load capacitance for cyrstal
-	 */
-
-	/* Adding 1 to get a "nicely" rounded number, but this needs
-	 * more tweaking to get a "properly" rounded number. */
-
-	freq = 1 + (InputFrequency * 2 * (VDW + 8) / ((RDW + 2) * OD));
-
-	debug("ICS307: CW[0-2]: %02X %02X %02X => %u Hz\n", cw0, cw1, cw2,
-		freq);
-	return freq;
-}
-
-unsigned long
-get_board_sys_clk(ulong dummy)
-{
-	u8 *pixis_base = (u8 *)PIXIS_BASE;
-
-	return ics307_clk_freq (
-	    in_8(pixis_base + PIXIS_VSYSCLK0),
-	    in_8(pixis_base + PIXIS_VSYSCLK1),
-	    in_8(pixis_base + PIXIS_VSYSCLK2)
-	);
-}
-
-unsigned long
-get_board_ddr_clk(ulong dummy)
-{
-	u8 *pixis_base = (u8 *)PIXIS_BASE;
-
-	return ics307_clk_freq (
-	    in_8(pixis_base + PIXIS_VDDRCLK0),
-	    in_8(pixis_base + PIXIS_VDDRCLK1),
-	    in_8(pixis_base + PIXIS_VDDRCLK2)
-	);
-}
-#else
-unsigned long
-get_board_sys_clk(ulong dummy)
-{
-	u8 i;
-	ulong val = 0;
-	u8 *pixis_base = (u8 *)PIXIS_BASE;
-
-	i = in_8(pixis_base + PIXIS_SPD);
-	i &= 0x07;
-
-	switch (i) {
-	case 0:
-		val = 33333333;
-		break;
-	case 1:
-		val = 40000000;
-		break;
-	case 2:
-		val = 50000000;
-		break;
-	case 3:
-		val = 66666666;
-		break;
-	case 4:
-		val = 83333333;
-		break;
-	case 5:
-		val = 100000000;
-		break;
-	case 6:
-		val = 133333333;
-		break;
-	case 7:
-		val = 166666666;
-		break;
-	}
-
-	return val;
-}
-
-unsigned long
-get_board_ddr_clk(ulong dummy)
-{
-	u8 i;
-	ulong val = 0;
-	u8 *pixis_base = (u8 *)PIXIS_BASE;
-
-	i = in_8(pixis_base + PIXIS_SPD);
-	i &= 0x38;
-	i >>= 3;
-
-	switch (i) {
-	case 0:
-		val = 33333333;
-		break;
-	case 1:
-		val = 40000000;
-		break;
-	case 2:
-		val = 50000000;
-		break;
-	case 3:
-		val = 66666666;
-		break;
-	case 4:
-		val = 83333333;
-		break;
-	case 5:
-		val = 100000000;
-		break;
-	case 6:
-		val = 133333333;
-		break;
-	case 7:
-		val = 166666666;
-		break;
-	}
-	return val;
-}
-#endif
-
 int board_eth_init(bd_t *bis)
 {
 #ifdef CONFIG_TSEC_ENET

include/configs/MPC8536DS.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ * Copyright 2007-2009,2010 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -27,6 +27,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include "../board/freescale/common/ics307_clk.h"
+
 #ifdef CONFIG_MK_36BIT
 #define CONFIG_PHYS_64BIT	1
 #endif
@@ -70,15 +72,9 @@
 #define CONFIG_TSEC_ENET		/* tsec ethernet support */
 #define CONFIG_ENV_OVERWRITE
 
-#ifndef __ASSEMBLY__
-extern unsigned long get_board_sys_clk(unsigned long dummy);
-extern unsigned long get_board_ddr_clk(unsigned long dummy);
-#endif
-#define CONFIG_SYS_CLK_FREQ	get_board_sys_clk(0) /* sysclk for MPC85xx */
-#define CONFIG_DDR_CLK_FREQ	get_board_ddr_clk(0)
+#define CONFIG_SYS_CLK_FREQ	get_board_sys_clk() /* sysclk for MPC85xx */
+#define CONFIG_DDR_CLK_FREQ	get_board_ddr_clk()
 #define CONFIG_ICS307_REFCLK_HZ	33333000  /* ICS307 clock chip ref freq */
-#define CONFIG_GET_CLK_FROM_ICS307	  /* decode sysclk and ddrclk freq
-					     from ICS307 instead of switches */
 
 /*
  * These can be toggled for performance analysis, otherwise use default.