ppc/85xx: Convert MPC8572DS to using board common ICS307 code

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

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 5436bd6f5d6bf594bc4a50725cf06cbb05014956..14c74081b2275926f4d17b39ff00502849cfeef5 100644 (file)
--- a/board/freescale/common/Makefile
+++ b/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-$(CONFIG_MPC8572DS)      += ics307_clk.o
 COBJS-$(CONFIG_P1022DS)                += ics307_clk.o
 COBJS-$(CONFIG_P2020DS)                += ics307_clk.o
 

diff --git a/board/freescale/mpc8572ds/mpc8572ds.c b/board/freescale/mpc8572ds/mpc8572ds.c
index 6029a5185c2a7ded93e49afce4344b0224a276b0..81d481a1719a38f2f71ff672950cd9fa0ddf5e0a 100644 (file)
--- a/board/freescale/mpc8572ds/mpc8572ds.c
+++ b/board/freescale/mpc8572ds/mpc8572ds.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2009 Freescale Semiconductor, Inc.
+ * Copyright 2007-2010 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -284,149 +284,6 @@ 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 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
-
 #ifdef CONFIG_TSEC_ENET
 int board_eth_init(bd_t *bis)
 {

diff --git a/include/configs/MPC8572DS.h b/include/configs/MPC8572DS.h
index 6038de1e67afebc668e52ae72b79957c606b8e74..57c2f2f23637cf1fafdb6b25e192dbda1e4755da 100644 (file)
--- a/include/configs/MPC8572DS.h
+++ b/include/configs/MPC8572DS.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ * Copyright 2007-2008,2010 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
 #endif
@@ -53,15 +55,9 @@
 #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) /* ddrclk for MPC85xx */
+#define CONFIG_SYS_CLK_FREQ    get_board_sys_clk() /* sysclk for MPC85xx */
+#define CONFIG_DDR_CLK_FREQ    get_board_ddr_clk() /* ddrclk for MPC85xx */
 #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.