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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:09 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:16 +0200
commit8d1f268204b07e172f3cb5cee0a3974d605b0b98 (patch)
treec3359e920cc886e7060fb099bf933496aca37153 /cpu/mpc824x/speed.c
parent819833af39a91fa1c1e8252862bbda6f5a602f7b (diff)
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ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'cpu/mpc824x/speed.c')
-rw-r--r--cpu/mpc824x/speed.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/cpu/mpc824x/speed.c b/cpu/mpc824x/speed.c
deleted file mode 100644
index fdcb972..0000000
--- a/cpu/mpc824x/speed.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2002
- * Gregory E. Allen, gallen@arlut.utexas.edu
- * Applied Research Laboratories, The University of Texas at Austin
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <mpc824x.h>
-#include <asm/processor.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* ------------------------------------------------------------------------- */
-/* NOTE: This describes the proper use of this file.
- *
- * CONFIG_SYS_CLK_FREQ should be defined as the input frequency on
- * PCI_SYNC_IN .
- *
- * CONFIG_PLL_PCI_TO_MEM_MULTIPLIER is only required on MPC8240
- * boards. It should be defined as the PCI to Memory Multiplier as
- * documented in the MPC8240 Hardware Specs.
- *
- * Other mpc824x boards don't need CONFIG_PLL_PCI_TO_MEM_MULTIPLIER
- * because they can determine it from the PCR.
- *
- * Gary Milliorn <gary.milliorn@motorola.com> (who should know since
- * he designed the Sandpoint) told us that the PCR is not in all revs
- * of the MPC8240 CPU, so it's not guaranteeable and we cannot do
- * away with CONFIG_PLL_PCI_TO_MEM_MULTIPLIER altogether.
- */
-/* ------------------------------------------------------------------------- */
-
-/* This gives the PCI to Memory multiplier times 10 */
-/* The index is the value of PLL_CFG[0:4] */
-/* This is documented in the MPC8240/5 Hardware Specs */
-
-short pll_pci_to_mem_multiplier[] = {
-#if defined(CONFIG_MPC8240)
- 30, 30, 10, 10, 20, 10, 0, 10,
- 10, 0, 20, 0, 20, 0, 20, 0,
- 30, 0, 15, 0, 20, 0, 20, 0,
- 25, 0, 10, 0, 15, 15, 0, 0,
-#elif defined(CONFIG_MPC8245)
- 30, 30, 10, 10, 20, 10, 10, 10,
- 10, 20, 20, 15, 20, 15, 20, 30,
- 30, 40, 15, 40, 20, 25, 20, 40,
- 25, 20, 10, 20, 15, 15, 15, 0,
-#else
-#error Specific type of MPC824x must be defined (i.e. CONFIG_MPC8240)
-#endif
-};
-
-#define CU824_PLL_STATE_REG 0xFE80002F
-#define PCR 0x800000E2
-
-/* ------------------------------------------------------------------------- */
-
-/* compute the memory bus clock frequency */
-ulong get_bus_freq (ulong dummy)
-{
- unsigned char pll_cfg;
-#if defined(CONFIG_MPC8240) && !defined(CONFIG_CU824)
- return (CONFIG_SYS_CLK_FREQ) * (CONFIG_PLL_PCI_TO_MEM_MULTIPLIER);
-#elif defined(CONFIG_CU824)
- pll_cfg = *(volatile unsigned char *) (CU824_PLL_STATE_REG);
- pll_cfg &= 0x1f;
-#else
- CONFIG_READ_BYTE(PCR, pll_cfg);
- pll_cfg = (pll_cfg >> 3) & 0x1f;
-#endif
- return ((CONFIG_SYS_CLK_FREQ) * pll_pci_to_mem_multiplier[pll_cfg] + 5) / 10;
-}
-
-
-/* ------------------------------------------------------------------------- */
-
-/* This gives the Memory to CPU Core multiplier times 10 */
-/* The index is the value of PLLRATIO in HID1 */
-/* This is documented in the MPC8240 Hardware Specs */
-/* This is not documented for MPC8245 ? FIXME */
-short pllratio_to_factor[] = {
- 0, 0, 0, 10, 20, 20, 25, 45,
- 30, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 10, 0, 0, 0, 45,
- 30, 0, 40, 0, 0, 0, 35, 0,
-};
-
-/* compute the CPU and memory bus clock frequencies */
-int get_clocks (void)
-{
- uint hid1 = mfspr(HID1);
- hid1 = (hid1 >> (32-5)) & 0x1f;
- gd->cpu_clk = (pllratio_to_factor[hid1] * get_bus_freq(0) + 5)
- / 10;
- gd->bus_clk = get_bus_freq(0);
- return (0);
-}