diff options
24 files changed, 1620 insertions, 257 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 56a2f678019..8619861dd34 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2503,13 +2503,11 @@ W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org S: Maintained -LINUX FOR POWERPC EMBEDDED MPC52XX +LINUX FOR POWERPC EMBEDDED MPC5XXX P: Sylvain Munaut M: tnt@246tNt.com P: Grant Likely M: grant.likely@secretlab.ca -W: http://www.246tNt.com/mpc52xx/ -W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org S: Maintained @@ -1,3 +1,4 @@ +FRED=42 VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 26 diff --git a/arch/powerpc/boot/dts/mpc5121ads.dts b/arch/powerpc/boot/dts/mpc5121ads.dts index 94ad7b2b241..1f9036c317b 100644 --- a/arch/powerpc/boot/dts/mpc5121ads.dts +++ b/arch/powerpc/boot/dts/mpc5121ads.dts @@ -1,7 +1,7 @@ /* - * MPC5121E MDS Device Tree Source + * MPC5121E ADS Device Tree Source * - * Copyright 2007 Freescale Semiconductor Inc. + * Copyright 2007,2008 Freescale Semiconductor Inc. * * 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 @@ -17,6 +17,10 @@ #address-cells = <1>; #size-cells = <1>; + aliases { + pci = &pci; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -39,8 +43,41 @@ reg = <0x00000000 0x10000000>; // 256MB at 0 }; + mbx@20000000 { + compatible = "fsl,mpc5121-mbx"; + reg = <0x20000000 0x4000>; + interrupts = <66 0x8>; + interrupt-parent = < &ipic >; + }; + + sram@30000000 { + compatible = "fsl,mpc5121-sram"; + reg = <0x30000000 0x20000>; // 128K at 0x30000000 + }; + + nfc@40000000 { + compatible = "fsl,mpc5121-nfc"; + reg = <0x40000000 0x100000>; // 1M at 0x40000000 + interrupts = <6 8>; + interrupt-parent = < &ipic >; + #address-cells = <1>; + #size-cells = <1>; + bank-width = <1>; + // ADS has two Hynix 512MB Nand flash chips in a single + // stacked package . + chips = <2>; + nand0@0 { + label = "nand0"; + reg = <0x00000000 0x02000000>; // first 32 MB of chip 0 + }; + nand1@20000000 { + label = "nand1"; + reg = <0x20000000 0x02000000>; // first 32 MB of chip 1 + }; + }; + localbus@80000020 { - compatible = "fsl,mpc5121ads-localbus"; + compatible = "fsl,mpc5121-localbus"; #address-cells = <2>; #size-cells = <1>; reg = <0x80000020 0x40>; @@ -51,14 +88,51 @@ flash@0,0 { compatible = "cfi-flash"; reg = <0 0x0 0x4000000>; + #address-cells = <1>; + #size-cells = <1>; bank-width = <4>; - device-width = <1>; + device-width = <2>; + protected@0 { + label = "protected"; + reg = <0x00000000 0x00040000>; // first sector is protected + read-only; + }; + filesystem@40000 { + label = "filesystem"; + reg = <0x00040000 0x03c00000>; // 60M for filesystem + }; + kernel@3c40000 { + label = "kernel"; + reg = <0x03c40000 0x00280000>; // 2.5M for kernel + }; + device-tree@3ec0000 { + label = "device-tree"; + reg = <0x03ec0000 0x00040000>; // one sector for device tree + }; + u-boot@3f00000 { + label = "u-boot"; + reg = <0x03f00000 0x00100000>; // 1M for u-boot + read-only; + }; }; board-control@2,0 { compatible = "fsl,mpc5121ads-cpld"; reg = <0x2 0x0 0x8000>; }; + + cpld_pic: pic@2,a { + compatible = "fsl,mpc5121ads-cpld-pic"; + interrupt-controller; + #interrupt-cells = <2>; + reg = <0x2 0xa 0x5>; + interrupt-parent = < &ipic >; + // irq routing + // all irqs but touch screen are routed to irq0 (ipic 48) + // touch screen is statically routed to irq1 (ipic 17) + // so don't use it here + interrupts = <48 0x8>; + }; }; soc@80000000 { @@ -85,38 +159,252 @@ reg = <0xc00 0x100>; }; - // 512x PSCs are not 52xx PSCs compatible + rtc@a00 { // Real time clock + compatible = "fsl,mpc5121-rtc"; + reg = <0xa00 0x100>; + interrupts = <79 0x8 80 0x8>; + interrupt-parent = < &ipic >; + }; + + clock@f00 { // Clock control + compatible = "fsl,mpc5121-clock"; + reg = <0xf00 0x100>; + }; + + pmc@1000{ //Power Management Controller + compatible = "fsl,mpc5121-pmc"; + reg = <0x1000 0x100>; + interrupts = <83 0x2>; + interrupt-parent = < &ipic >; + }; + + gpio@1100 { + compatible = "fsl,mpc5121-gpio"; + reg = <0x1100 0x100>; + interrupts = <78 0x8>; + interrupt-parent = < &ipic >; + }; + + mscan@1300 { + compatible = "fsl,mpc5121-mscan"; + cell-index = <0>; + interrupts = <12 0x8>; + interrupt-parent = < &ipic >; + reg = <0x1300 0x80>; + }; + + mscan@1380 { + compatible = "fsl,mpc5121-mscan"; + cell-index = <1>; + interrupts = <13 0x8>; + interrupt-parent = < &ipic >; + reg = <0x1380 0x80>; + }; + + i2c@1700 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5121-i2c", "fsl-i2c"; + cell-index = <0>; + reg = <0x1700 0x20>; + interrupts = <9 0x8>; + interrupt-parent = < &ipic >; + fsl5200-clocking; + }; + + i2c@1720 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5121-i2c", "fsl-i2c"; + cell-index = <1>; + reg = <0x1720 0x20>; + interrupts = <10 0x8>; + interrupt-parent = < &ipic >; + fsl5200-clocking; + }; + + i2c@1740 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5121-i2c", "fsl-i2c"; + cell-index = <2>; + reg = <0x1740 0x20>; + interrupts = <11 0x8>; + interrupt-parent = < &ipic >; + fsl5200-clocking; + }; + + i2ccontrol@1760 { + compatible = "fsl,mpc5121-i2c-ctrl"; + reg = <0x1760 0x8>; + }; + + axe@2000 { + compatible = "fsl,mpc5121-axe"; + reg = <0x2000 0x100>; + interrupts = <42 0x8>; + interrupt-parent = < &ipic >; + }; + + display@2100 { + compatible = "fsl,mpc5121-diu", "fsl-diu"; + reg = <0x2100 0x100>; + interrupts = <64 0x8>; + interrupt-parent = < &ipic >; + }; + + mdio@2800 { + compatible = "fsl,mpc5121-fec-mdio"; + reg = <0x2800 0x800>; + #address-cells = <1>; + #size-cells = <0>; + phy: ethernet-phy@0 { + reg = <1>; + device_type = "ethernet-phy"; + }; + }; + + ethernet@2800 { + device_type = "network"; + compatible = "fsl,mpc5121-fec"; + reg = <0x2800 0x800>; + local-mac-address = [ 00 00 00 00 00 00 ]; + interrupts = <4 0x8>; + interrupt-parent = < &ipic >; + phy-handle = < &phy >; + fsl,align-tx-packets = <4>; + }; + + // 5121e has two dr usb modules + // mpc5121_ads only uses USB0 + + // USB1 using external ULPI PHY + //usb@3000 { + // compatible = "fsl,mpc5121-usb2-dr", "fsl-usb2-dr"; + // reg = <0x3000 0x1000>; + // #address-cells = <1>; + // #size-cells = <0>; + // interrupt-parent = < &ipic >; + // interrupts = <43 0x8>; + // dr_mode = "otg"; + // phy_type = "ulpi"; + // port1; + //}; + + // USB0 using internal UTMI PHY + usb@4000 { + compatible = "fsl,mpc5121-usb2-dr", "fsl-usb2-dr"; + reg = <0x4000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupt-parent = < &ipic >; + interrupts = <44 0x8>; + dr_mode = "otg"; + phy_type = "utmi_wide"; + port0; + }; + + // IO control + ioctl@a000 { + compatible = "fsl,mpc5121-ioctl"; + reg = <0xA000 0x1000>; + }; + + pata@10200 { + compatible = "fsl,mpc5121-pata"; + reg = <0x10200 0x100>; + interrupts = <5 0x8>; + interrupt-parent = < &ipic >; + }; + + // 512x PSCs are not 52xx PSC compatible // PSC3 serial port A aka ttyPSC0 serial@11300 { device_type = "serial"; - compatible = "fsl,mpc5121-psc-uart"; + compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc"; // Logical port assignment needed until driver // learns to use aliases port-number = <0>; cell-index = <3>; reg = <0x11300 0x100>; - interrupts = <0x28 0x8>; // actually the fifo irq + interrupts = <40 0x8>; interrupt-parent = < &ipic >; + rx-fifo-size = <16>; + tx-fifo-size = <16>; }; // PSC4 serial port B aka ttyPSC1 serial@11400 { device_type = "serial"; - compatible = "fsl,mpc5121-psc-uart"; + compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc"; // Logical port assignment needed until driver // learns to use aliases port-number = <1>; cell-index = <4>; reg = <0x11400 0x100>; - interrupts = <0x28 0x8>; // actually the fifo irq + interrupts = <40 0x8>; interrupt-parent = < &ipic >; + rx-fifo-size = <16>; + tx-fifo-size = <16>; }; - pscsfifo@11f00 { + // PSC5 in ac97 mode + ac97@11500 { + compatible = "fsl,mpc5121-psc-ac97", "fsl,mpc5121-psc"; + cell-index = <5>; + reg = <0x11500 0x100>; + interrupts = <40 0x8>; + interrupt-parent = < &ipic >; + fsl,mode = "ac97-slave"; + rx-fifo-size = <384>; + tx-fifo-size = <384>; + }; + + pscfifo@11f00 { compatible = "fsl,mpc5121-psc-fifo"; reg = <0x11f00 0x100>; - interrupts = <0x28 0x8>; + interrupts = <40 0x8>; interrupt-parent = < &ipic >; }; + + dma@14000 { + compatible = "fsl,mpc5121-dma2"; + reg = <0x14000 0x1800>; + interrupts = <65 0x8>; + interrupt-parent = < &ipic >; + }; + + }; + + pci: pci@80008500 { + interrupt-map-mask = <0xf800 0x0 0x0 0x7>; + interrupt-map = < + // IDSEL 0x15 - Slot 1 PCI + 0xa800 0x0 0x0 0x1 &cpld_pic 0x0 0x8 + 0xa800 0x0 0x0 0x2 &cpld_pic 0x1 0x8 + 0xa800 0x0 0x0 0x3 &cpld_pic 0x2 0x8 + 0xa800 0x0 0x0 0x4 &cpld_pic 0x3 0x8 + + // IDSEL 0x16 - Slot 2 MiniPCI + 0xb000 0x0 0x0 0x1 &cpld_pic 0x4 0x8 + 0xb000 0x0 0x0 0x2 &cpld_pic 0x5 0x8 + + // IDSEL 0x17 - Slot 3 MiniPCI + 0xb800 0x0 0x0 0x1 &cpld_pic 0x6 0x8 + 0xb800 0x0 0x0 0x2 &cpld_pic 0x7 0x8 + >; + interrupt-parent = < &ipic >; + interrupts = <1 0x8>; + bus-range = <0 0>; + ranges = <0x42000000 0x0 0xa0000000 0xa0000000 0x0 0x10000000 + 0x02000000 0x0 0xb0000000 0xb0000000 0x0 0x10000000 + 0x01000000 0x0 0x00000000 0x84000000 0x0 0x01000000>; + clock-frequency = <0>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <0x80008500 0x100>; + compatible = "fsl,mpc5121-pci"; + device_type = "pci"; }; }; diff --git a/arch/powerpc/boot/dts/tqm5200.dts b/arch/powerpc/boot/dts/tqm5200.dts index 773a68e0005..3008bf8830c 100644 --- a/arch/powerpc/boot/dts/tqm5200.dts +++ b/arch/powerpc/boot/dts/tqm5200.dts @@ -70,6 +70,20 @@ fsl,has-wdt; }; + can@900 { + compatible = "fsl,mpc5200-mscan"; + interrupts = <2 17 0>; + interrupt-parent = <&mpc5200_pic>; + reg = <0x900 0x80>; + }; + + can@980 { + compatible = "fsl,mpc5200-mscan"; + interrupts = <2 18 0>; + interrupt-parent = <&mpc5200_pic>; + reg = <0x980 0x80>; + }; + gpio@b00 { compatible = "fsl,mpc5200-gpio"; reg = <0xb00 0x40>; diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index 4c0da0c079e..c62f893ede1 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -2,18 +2,29 @@ config PPC_MPC512x bool select FSL_SOC select IPIC - default n + select PPC_CLOCK config PPC_MPC5121 bool select PPC_MPC512x - default n config MPC5121_ADS bool "Freescale MPC5121E ADS" depends on PPC_MULTIPLATFORM && PPC32 select DEFAULT_UIMAGE select PPC_MPC5121 + select MPC5121_ADS_CPLD help This option enables support for the MPC5121E ADS board. - default n + +config MPC5121_GENERIC + bool "Generic support for simple MPC5121 based boards" + depends on PPC_MULTIPLATFORM && PPC32 + select DEFAULT_UIMAGE + select PPC_MPC5121 + help + This option enables support for simple MPC5121 based boards + which do not need custom platform specific setup. + + Compatible boards include: Protonic LVT base boards (ZANMCU + and VICVT2). diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile index 232c89f2039..90be2f5717e 100644 --- a/arch/powerpc/platforms/512x/Makefile +++ b/arch/powerpc/platforms/512x/Makefile @@ -1,4 +1,6 @@ # # Makefile for the Freescale PowerPC 512x linux kernel. # -obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o +obj-y += clock.o mpc512x_shared.o +obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o mpc5121_ads_cpld.o +obj-$(CONFIG_MPC5121_GENERIC) += mpc5121_generic.o diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c new file mode 100644 index 00000000000..f416014ee72 --- /dev/null +++ b/arch/powerpc/platforms/512x/clock.c @@ -0,0 +1,729 @@ +/* + * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: John Rigby <jrigby@freescale.com> + * + * Implements the clk api defined in include/linux/clk.h + * + * Original based on linux/arch/arm/mach-integrator/clock.c + * + * Copyright (C) 2004 ARM Limited. + * Written by Deep Blue Solutions Limited. + * + * 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. + */ +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/clk.h> +#include <linux/mutex.h> +#include <linux/io.h> + +#include <linux/of_platform.h> +#include <asm/mpc512x.h> +#include <asm/clk_interface.h> + +#undef CLK_DEBUG + +static int clocks_initialized; + +#define CLK_HAS_RATE 0x1 /* has rate in MHz */ +#define CLK_HAS_CTRL 0x2 /* has control reg and bit */ + +struct clk { + struct list_head node; + char name[32]; + int flags; + struct device *dev; + unsigned long rate; + struct module *owner; + void (*calc) (struct clk *); + struct clk *parent; + int reg, bit; /* CLK_HAS_CTRL */ + int div_shift; /* only used by generic_div_clk_calc */ +}; + +static LIST_HEAD(clocks); +static DEFINE_MUTEX(clocks_mutex); + +static struct clk *mpc5121_clk_get(struct device *dev, const char *id) +{ + struct clk *p, *clk = ERR_PTR(-ENOENT); + int dev_match = 0; + int id_match = 0; + + if (dev == NULL && id == NULL) + return NULL; + + mutex_lock(&clocks_mutex); + list_for_each_entry(p, &clocks, node) { + if (dev && dev == p->dev) + dev_match++; + if (strcmp(id, p->name) == 0) + id_match++; + if ((dev_match || id_match) && try_module_get(p->owner)) { + clk = p; + break; + } + } + mutex_unlock(&clocks_mutex); + + return clk; +} + +#ifdef CLK_DEBUG +static void dump_clocks(void) +{ + struct clk *p; + + mutex_lock(&clocks_mutex); + printk(KERN_INFO "CLOCKS:\n"); + list_for_each_entry(p, &clocks, node) { + printk(KERN_INFO " %s %ld", p->name, p->rate); + if (p->parent) + printk(KERN_INFO " %s %ld", p->parent->name, + p->parent->rate); + if (p->flags & CLK_HAS_CTRL) + printk(KERN_INFO " reg/bit %d/%d", p->reg, p->bit); + printk("\n"); + } + mutex_unlock(&clocks_mutex); +} +#define DEBUG_CLK_DUMP() dump_clocks() +#else +#define DEBUG_CLK_DUMP() +#endif + + +static void mpc5121_clk_put(struct clk *clk) +{ + module_put(clk->owner); +} + +#define NRPSC 12 + +struct mpc512x_clockctl { + u32 spmr; /* System PLL Mode Reg */ + u32 sccr[2]; /* System Clk Ctrl Reg 1 & 2 */ + u32 scfr1; /* System Clk Freq Reg 1 */ + u32 scfr2; /* System Clk Freq Reg 2 */ + u32 reserved; + u32 bcr; /* Bread Crumb Reg */ + u32 pccr[NRPSC]; /* PSC Clk Ctrl Reg 0-11 */ + u32 spccr; /* SPDIF Clk Ctrl Reg */ + u32 cccr; /* CFM Clk Ctrl Reg */ + u32 dccr; /* DIU Clk Cnfg Reg */ +}; + +struct mpc512x_clockctl __iomem *clockctl; + +static int mpc5121_clk_enable(struct clk *clk) +{ + unsigned int mask; + + if (clk->flags & CLK_HAS_CTRL) { + mask = in_be32(&clockctl->sccr[clk->reg]); + mask |= 1 << clk->bit; + out_be32(&clockctl->sccr[clk->reg], mask); + } + return 0; +} + +static void mpc5121_clk_disable(struct clk *clk) +{ + unsigned int mask; + + if (clk->flags & CLK_HAS_CTRL) { + mask = in_be32(&clockctl->sccr[clk->reg]); + mask &= ~(1 << clk->bit); + out_be32(&clockctl->sccr[clk->reg], mask); + } +} + +static unsigned long mpc5121_clk_get_rate(struct clk *clk) +{ + if (clk->flags & CLK_HAS_RATE) + return clk->rate; + else + return 0; +} + +static long mpc5121_clk_round_rate(struct clk *clk, unsigned long rate) +{ + return rate; +} + +static int mpc5121_clk_set_rate(struct clk *clk, unsigned long rate) +{ + return 0; +} + +static int clk_register(struct clk *clk) +{ + mutex_lock(&clocks_mutex); + list_add(&clk->node, &clocks); + mutex_unlock(&clocks_mutex); + return 0; +} + +static unsigned long spmf_mult(void) +{ + /* + * Convert spmf to multiplier + */ + static int spmf_to_mult[] = { + 68, 1, 12, 16, + 20, 24, 28, 32, + 36, 40, 44, 48, + 52, 56, 60, 64 + }; + int spmf = (clockctl->spmr >> 24) & 0xf; + return spmf_to_mult[spmf]; +} + +static unsigned long sysdiv_div_x_2(void) +{ + /* + * Convert sysdiv to divisor x 2 + * Some divisors have fractional parts so + * multiply by 2 then divide by this value + */ + static int sysdiv_to_div_x_2[] = { + 4, 5, 6, 7, + 8, 9, 10, 14, + 12, 16, 18, 22, + 20, 24, 26, 30, + 28, 32, 34, 38, + 36, 40, 42, 46, + 44, 48, 50, 54, + 52, 56, 58, 62, + 60, 64, 66, + }; + int sysdiv = (clockctl->scfr2 >> 26) & 0x3f; + return sysdiv_to_div_x_2[sysdiv]; +} + +static unsigned long ref_to_sys(unsigned long rate) +{ + rate *= spmf_mult(); + rate *= 2; + rate /= sysdiv_div_x_2(); + + return rate; +} + +static unsigned long sys_to_ref(unsigned long rate) +{ + rate *= sysdiv_div_x_2(); + rate /= 2; + rate /= spmf_mult(); + + return rate; +} + +static long ips_to_ref(unsigned long rate) +{ + int ips_div = (clockctl->scfr1 >> 23) & 0x7; + + rate *= ips_div; /* csb_clk = ips_clk * ips_div */ + rate *= 2; /* sys_clk = csb_clk * 2 */ + return sys_to_ref(rate); +} + +static unsigned long devtree_getfreq(char *clockname) +{ + struct device_node *np; + const unsigned int *prop; + unsigned int val = 0; + + np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-immr"); + if (np) { + prop = of_get_property(np, clockname, NULL); + if (prop) + val = *prop; + of_node_put(np); + } + return val; +} + +static void ref_clk_calc(struct clk *clk) +{ + unsigned long rate; + + rate = devtree_getfreq("bus-frequency"); + if (rate == 0) { + printk(KERN_ERR "No bus-frequency in dev tree\n"); + clk->rate = 0; + return; + } + clk->rate = ips_to_ref(rate); +} + +static struct clk ref_clk = { + .name = "ref_clk", + .calc = ref_clk_calc, +}; + + +static void sys_clk_calc(struct clk *clk) +{ + clk->rate = ref_to_sys(ref_clk.rate); +} + +static struct clk sys_clk = { + .name = "sys_clk", + .calc = sys_clk_calc, +}; + +static void diu_clk_calc(struct clk *clk) +{ + int diudiv_x_2 = clockctl->scfr1 & 0xff; + unsigned long rate; + + rate = sys_clk.rate; + + rate *= 2; + rate /= diudiv_x_2; + + clk->rate = rate; +} + +static void half_clk_calc(struct clk *clk) +{ + clk->rate = clk->parent->rate / 2; +} + +static void generic_div_clk_calc(struct clk *clk) +{ + int div = (clockctl->scfr1 >> clk->div_shift) & 0x7; + + clk->rate = clk->parent->rate / div; +} + +static void unity_clk_calc(struct clk *clk) +{ + clk->rate = clk->parent->rate; +} + +static struct clk csb_clk = { + .name = "csb_clk", + .calc = half_clk_calc, + .parent = &sys_clk, +}; + +static void e300_clk_calc(struct clk *clk) +{ + int spmf = (clockctl->spmr >> 16) & 0xf; + int ratex2 = clk->parent->rate * spmf; + + clk->rate = ratex2 / 2; +} + +static struct clk e300_clk = { + .name = "e300_clk", + .calc = e300_clk_calc, + .parent = &csb_clk, +}; + +static struct clk ips_clk = { + .name = "ips_clk", + .calc = generic_div_clk_calc, + .parent = &csb_clk, + .div_shift = 23, +}; + +/* + * Clocks controlled by SCCR1 (.reg = 0) + */ +static struct clk lpc_clk = { + .name = "lpc_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 30, + .calc = generic_div_clk_calc, + .parent = &ips_clk, + .div_shift = 11, +}; + +static struct clk nfc_clk = { + .name = "nfc_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 29, + .calc = generic_div_clk_calc, + .parent = &ips_clk, + .div_shift = 8, +}; + +static struct clk pata_clk = { + .name = "pata_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 28, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +/* + * PSC clocks (bits 27 - 16) + * are setup elsewhere + */ + +static struct clk sata_clk = { + .name = "sata_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 14, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +static struct clk fec_clk = { + .name = "fec_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 13, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +static struct clk pci_clk = { + .name = "pci_clk", + .flags = CLK_HAS_CTRL, + .reg = 0, + .bit = 11, + .calc = generic_div_clk_calc, + .parent = &csb_clk, + .div_shift = 20, +}; + +/* + * Clocks controlled by SCCR2 (.reg = 1) + */ +static struct clk diu_clk = { + .name = "diu_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 31, + .calc = diu_clk_calc, +}; + +static struct clk axe_clk = { + .name = "axe_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 30, + .calc = unity_clk_calc, + .parent = &csb_clk, +}; + +static struct clk usb1_clk = { + .name = "usb1_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 28, + .calc = unity_clk_calc, + .parent = &csb_clk, +}; + +static struct clk usb2_clk = { + .name = "usb2_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 27, + .calc = unity_clk_calc, + .parent = &csb_clk, +}; + +static struct clk i2c_clk = { + .name = "i2c_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 26, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +static struct clk mscan_clk = { + .name = "mscan_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 25, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +static struct clk sdhc_clk = { + .name = "sdhc_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 24, + .calc = unity_clk_calc, + .parent = &ips_clk, +}; + +static struct clk mbx_bus_clk = { + .name = "mbx_bus_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 22, + .calc = half_clk_calc, + .parent = &csb_clk, +}; + +static struct clk mbx_clk = { + .name = "mbx_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 21, + .calc = unity_clk_calc, + .parent = &csb_clk, +}; + +static struct clk mbx_3d_clk = { + .name = "mbx_3d_clk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 20, + .calc = generic_div_clk_calc, + .parent = &mbx_bus_clk, + .div_shift = 14, +}; + +static void psc_mclk_in_calc(struct clk *clk) +{ + clk->rate = devtree_getfreq("psc_mclk_in"); + if (!clk->rate) + clk->rate = 25000000; +} + +static struct clk psc_mclk_in = { + .name = "psc_mclk_in", + .calc = psc_mclk_in_calc, +}; + +static struct clk spdif_txclk = { + .name = "spdif_txclk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 23, +}; + +static struct clk spdif_rxclk = { + .name = "spdif_rxclk", + .flags = CLK_HAS_CTRL, + .reg = 1, + .bit = 23, +}; + +static void ac97_clk_calc(struct clk *clk) +{ + /* ac97 bit clock is always 24.567 MHz */ + clk->rate = 24567000; +} + +static struct clk ac97_clk = { + .name = "ac97_clk_in", + .calc = ac97_clk_calc, +}; + +struct clk *rate_clks[] = { + &ref_clk, + &sys_clk, + &diu_clk, + &csb_clk, + &e300_clk, + &ips_clk, + &fec_clk, + &sata_clk, + &pata_clk, + &nfc_clk, + &lpc_clk, + &mbx_bus_clk, + &mbx_clk, + &mbx_3d_clk, + &axe_clk, + &usb1_clk, + &usb2_clk, + &i2c_clk, + &mscan_clk, + &sdhc_clk, + &pci_clk, + &psc_mclk_in, + &spdif_txclk, + &spdif_rxclk, + &ac97_clk, + NULL +}; + +static void rate_clk_init(struct clk *clk) +{ + if (clk->calc) { + clk->calc(clk); + clk->flags |= CLK_HAS_RATE; + clk_register(clk); + } else { + printk(KERN_WARNING + "Could not initialize clk %s without a calc routine\n", + clk->name); + } +} + +static void rate_clks_init(void) +{ + struct clk **cpp, *clk; + + cpp = rate_clks; + while ((clk = *cpp++)) + rate_clk_init(clk); +} + +/* + * There are two clk enable registers with 32 enable bits each + * psc clocks and device clocks are all stored in dev_clks + */ +struct clk dev_clks[2][32]; + +/* + * Given a psc number return the dev_clk + * associated with it + */ +static struct clk *psc_dev_clk(int pscnum) +{ + int reg, bit; + struct clk *clk; + + reg = 0; + bit = 27 - pscnum; + + clk = &dev_c |