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-rw-r--r--cpu/mpc83xx/speed.c312
1 files changed, 161 insertions, 151 deletions
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c
index ad6b3f6..7e53b1e 100644
--- a/cpu/mpc83xx/speed.c
+++ b/cpu/mpc83xx/speed.c
@@ -2,7 +2,7 @@
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * Copyright 2004 Freescale Semiconductor, Inc.
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -21,11 +21,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
- *
- * Change log:
- *
- * 20050101: Eran Liberty (liberty@freescale.com)
- * Initial file creating (porting from 85XX & 8260)
*/
#include <common.h>
@@ -53,38 +48,38 @@ typedef enum {
typedef struct {
mult_t core_csb_ratio;
- mult_t vco_divider;
+ mult_t vco_divider;
} corecnf_t;
corecnf_t corecnf_tab[] = {
- { _byp, _byp}, /* 0x00 */
- { _byp, _byp}, /* 0x01 */
- { _byp, _byp}, /* 0x02 */
- { _byp, _byp}, /* 0x03 */
- { _byp, _byp}, /* 0x04 */
- { _byp, _byp}, /* 0x05 */
- { _byp, _byp}, /* 0x06 */
- { _byp, _byp}, /* 0x07 */
- { _1x, _x2}, /* 0x08 */
- { _1x, _x4}, /* 0x09 */
- { _1x, _x8}, /* 0x0A */
- { _1x, _x8}, /* 0x0B */
- {_1_5x, _x2}, /* 0x0C */
- {_1_5x, _x4}, /* 0x0D */
- {_1_5x, _x8}, /* 0x0E */
- {_1_5x, _x8}, /* 0x0F */
- { _2x, _x2}, /* 0x10 */
- { _2x, _x4}, /* 0x11 */
- { _2x, _x8}, /* 0x12 */
- { _2x, _x8}, /* 0x13 */
- {_2_5x, _x2}, /* 0x14 */
- {_2_5x, _x4}, /* 0x15 */
- {_2_5x, _x8}, /* 0x16 */
- {_2_5x, _x8}, /* 0x17 */
- { _3x, _x2}, /* 0x18 */
- { _3x, _x4}, /* 0x19 */
- { _3x, _x8}, /* 0x1A */
- { _3x, _x8}, /* 0x1B */
+ {_byp, _byp}, /* 0x00 */
+ {_byp, _byp}, /* 0x01 */
+ {_byp, _byp}, /* 0x02 */
+ {_byp, _byp}, /* 0x03 */
+ {_byp, _byp}, /* 0x04 */
+ {_byp, _byp}, /* 0x05 */
+ {_byp, _byp}, /* 0x06 */
+ {_byp, _byp}, /* 0x07 */
+ {_1x, _x2}, /* 0x08 */
+ {_1x, _x4}, /* 0x09 */
+ {_1x, _x8}, /* 0x0A */
+ {_1x, _x8}, /* 0x0B */
+ {_1_5x, _x2}, /* 0x0C */
+ {_1_5x, _x4}, /* 0x0D */
+ {_1_5x, _x8}, /* 0x0E */
+ {_1_5x, _x8}, /* 0x0F */
+ {_2x, _x2}, /* 0x10 */
+ {_2x, _x4}, /* 0x11 */
+ {_2x, _x8}, /* 0x12 */
+ {_2x, _x8}, /* 0x13 */
+ {_2_5x, _x2}, /* 0x14 */
+ {_2_5x, _x4}, /* 0x15 */
+ {_2_5x, _x8}, /* 0x16 */
+ {_2_5x, _x8}, /* 0x17 */
+ {_3x, _x2}, /* 0x18 */
+ {_3x, _x4}, /* 0x19 */
+ {_3x, _x8}, /* 0x1A */
+ {_3x, _x8}, /* 0x1B */
};
/* ----------------------------------------------------------------- */
@@ -92,91 +87,64 @@ corecnf_t corecnf_tab[] = {
/*
*
*/
-int get_clocks (void)
+int get_clocks(void)
{
- volatile immap_t *im = (immap_t *)CFG_IMMRBAR;
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 pci_sync_in;
- u8 spmf;
- u8 clkin_div;
+ u8 spmf;
+ u8 clkin_div;
u32 sccr;
u32 corecnf_tab_index;
- u8 corepll;
+ u8 corepll;
u32 lcrr;
u32 csb_clk;
+#if defined(CONFIG_MPC8349)
u32 tsec1_clk;
u32 tsec2_clk;
- u32 core_clk;
u32 usbmph_clk;
u32 usbdr_clk;
- u32 i2c_clk;
+#endif
+ u32 core_clk;
+ u32 i2c1_clk;
+ u32 i2c2_clk;
u32 enc_clk;
u32 lbiu_clk;
u32 lclk_clk;
u32 ddr_clk;
-
- if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
+#if defined (CONFIG_MPC8360)
+ u32 qepmf;
+ u32 qepdf;
+ u32 ddr_sec_clk;
+ u32 qe_clk;
+ u32 brg_clk;
+#endif
+
+ if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
return -1;
-#ifndef CFG_HRCW_HIGH
-# error "CFG_HRCW_HIGH must be defined in board config file"
-#endif /* CFG_HCWD_HIGH */
-
-#if (CFG_HRCW_HIGH & HRCWH_PCI_HOST)
-
-# ifndef CONFIG_83XX_CLKIN
-# error "In PCI Host Mode, CONFIG_83XX_CLKIN must be defined in board config file"
-# endif /* CONFIG_83XX_CLKIN */
-# ifdef CONFIG_83XX_PCICLK
-# warning "In PCI Host Mode, CONFIG_83XX_PCICLK in board config file is igonred"
-# endif /* CONFIG_83XX_PCICLK */
-
- /* PCI Host Mode */
- if (!(im->reset.rcwh & RCWH_PCIHOST)) {
- /* though RCWH_PCIHOST is defined in CFG_HRCW_HIGH
- * the im->reset.rcwhr PCI Host Mode is disabled
- * FIXME: findout if there is a way to issue some warning */
- return -2;
- }
- if (im->clk.spmr & SPMR_CKID) {
- /* PCI Clock is half CONFIG_83XX_CLKIN */
- pci_sync_in = CONFIG_83XX_CLKIN / 2;
- }
- else {
- pci_sync_in = CONFIG_83XX_CLKIN;
- }
-
-#else /* (CFG_HRCW_HIGH & HRCWH_PCI_HOST) */
-
-# ifdef CONFIG_83XX_CLKIN
-# warning "In PCI Agent Mode, CONFIG_83XX_CLKIN in board config file is igonred"
-# endif /* CONFIG_83XX_CLKIN */
-# ifndef CONFIG_83XX_PCICLK
-# error "In PCI Agent Mode, CONFIG_83XX_PCICLK must be defined in board config file"
-# endif /* CONFIG_83XX_PCICLK */
+ clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT);
- /* PCI Agent Mode */
- if (im->reset.rcwh & RCWH_PCIHOST) {
- /* though RCWH_PCIHOST is not defined in CFG_HRCW_HIGH
- * the im->reset.rcwhr PCI Host Mode is enabled */
- return -3;
+ if (im->reset.rcwh & HRCWH_PCI_HOST) {
+#if defined(CONFIG_83XX_CLKIN)
+ pci_sync_in = CONFIG_83XX_CLKIN / (1 + clkin_div);
+#else
+ pci_sync_in = 0xDEADBEEF;
+#endif
+ } else {
+#if defined(CONFIG_83XX_PCICLK)
+ pci_sync_in = CONFIG_83XX_PCICLK;
+#else
+ pci_sync_in = 0xDEADBEEF;
+#endif
}
- pci_sync_in = CONFIG_83XX_PCICLK;
-
-#endif /* (CFG_HRCW_HIGH | RCWH_PCIHOST) */
- /* we have up to date pci_sync_in */
spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT);
- clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT);
-
- if ((im->reset.rcwl & RCWL_LBIUCM) || (im->reset.rcwl & RCWL_DDRCM)) {
- csb_clk = (pci_sync_in * spmf * (1 + clkin_div)) / 2;
- }
- else {
- csb_clk = pci_sync_in * spmf * (1 + clkin_div);
- }
+ csb_clk = pci_sync_in * (1 + clkin_div) * spmf;
sccr = im->clk.sccr;
+
+#if defined(CONFIG_MPC8349)
switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) {
case 0:
tsec1_clk = 0;
@@ -212,25 +180,8 @@ int get_clocks (void)
/* unkown SCCR_TSEC2CM value */
return -5;
}
- i2c_clk = tsec2_clk;
- switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) {
- case 0:
- enc_clk = 0;
- break;
- case 1:
- enc_clk = csb_clk;
- break;
- case 2:
- enc_clk = csb_clk / 2;
- break;
- case 3:
- enc_clk = csb_clk / 3;
- break;
- default:
- /* unkown SCCR_ENCCM value */
- return -6;
- }
+ i2c1_clk = tsec2_clk;
switch ((sccr & SCCR_USBMPHCM) >> SCCR_USBMPHCM_SHIFT) {
case 0:
@@ -268,14 +219,42 @@ int get_clocks (void)
return -8;
}
- if (usbmph_clk != 0
- && usbdr_clk != 0
- && usbmph_clk != usbdr_clk ) {
- /* if USB MPH clock is not disabled and USB DR clock is not disabled than USB MPH & USB DR must have the same rate */
+ if (usbmph_clk != 0 && usbdr_clk != 0 && usbmph_clk != usbdr_clk) {
+ /* if USB MPH clock is not disabled and
+ * USB DR clock is not disabled then
+ * USB MPH & USB DR must have the same rate
+ */
return -9;
}
+#endif
+#if defined (CONFIG_MPC8360)
+ i2c1_clk = csb_clk;
+#endif
+ i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */
- lbiu_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT));
+ switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) {
+ case 0:
+ enc_clk = 0;
+ break;
+ case 1:
+ enc_clk = csb_clk;
+ break;
+ case 2:
+ enc_clk = csb_clk / 2;
+ break;
+ case 3:
+ enc_clk = csb_clk / 3;
+ break;
+ default:
+ /* unkown SCCR_ENCCM value */
+ return -6;
+ }
+#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360)
+ lbiu_clk = csb_clk *
+ (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT));
+#else
+#error Unknown MPC83xx chip
+#endif
lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT;
switch (lcrr) {
case 2:
@@ -287,12 +266,20 @@ int get_clocks (void)
/* unknown lcrr */
return -10;
}
-
- ddr_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT));
-
+#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360)
+ ddr_clk = csb_clk *
+ (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT));
corepll = (im->reset.rcwl & RCWL_COREPLL) >> RCWL_COREPLL_SHIFT;
+#if defined (CONFIG_MPC8360)
+ ddr_sec_clk = csb_clk * (1 +
+ ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT));
+#endif
+#else
+#error Unknown MPC83xx chip
+#endif
+
corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5);
- if (corecnf_tab_index > (sizeof(corecnf_tab)/sizeof(corecnf_t)) ) {
+ if (corecnf_tab_index > (sizeof(corecnf_tab) / sizeof(corecnf_t))) {
/* corecnf_tab_index is too high, possibly worng value */
return -11;
}
@@ -309,7 +296,7 @@ int get_clocks (void)
core_clk = 2 * csb_clk;
break;
case _2_5x:
- core_clk = ( 5 * csb_clk) / 2;
+ core_clk = (5 * csb_clk) / 2;
break;
case _3x:
core_clk = 3 * csb_clk;
@@ -319,46 +306,69 @@ int get_clocks (void)
return -12;
}
- gd->csb_clk = csb_clk ;
- gd->tsec1_clk = tsec1_clk ;
- gd->tsec2_clk = tsec2_clk ;
- gd->core_clk = core_clk ;
+#if defined (CONFIG_MPC8360)
+ qepmf = (im->reset.rcwl & RCWL_CEPMF) >> RCWL_CEPMF_SHIFT;
+ qepdf = (im->reset.rcwl & RCWL_CEPDF) >> RCWL_CEPDF_SHIFT;
+ qe_clk = (pci_sync_in * qepmf) / (1 + qepdf);
+ brg_clk = qe_clk / 2;
+#endif
+
+ gd->csb_clk = csb_clk;
+#if defined(CONFIG_MPC8349)
+ gd->tsec1_clk = tsec1_clk;
+ gd->tsec2_clk = tsec2_clk;
gd->usbmph_clk = usbmph_clk;
- gd->usbdr_clk = usbdr_clk ;
- gd->i2c_clk = i2c_clk ;
- gd->enc_clk = enc_clk ;
- gd->lbiu_clk = lbiu_clk ;
- gd->lclk_clk = lclk_clk ;
- gd->ddr_clk = ddr_clk ;
- gd->pci_clk = pci_sync_in;
-
+ gd->usbdr_clk = usbdr_clk;
+#endif
+ gd->core_clk = core_clk;
+ gd->i2c1_clk = i2c1_clk;
+ gd->i2c2_clk = i2c2_clk;
+ gd->enc_clk = enc_clk;
+ gd->lbiu_clk = lbiu_clk;
+ gd->lclk_clk = lclk_clk;
+ gd->ddr_clk = ddr_clk;
+#if defined (CONFIG_MPC8360)
+ gd->ddr_sec_clk = ddr_sec_clk;
+ gd->qe_clk = qe_clk;
+ gd->brg_clk = brg_clk;
+#endif
gd->cpu_clk = gd->core_clk;
- gd->bus_clk = gd->lbiu_clk;
+ gd->bus_clk = gd->csb_clk;
return 0;
+
}
/********************************************
* get_bus_freq
* return system bus freq in Hz
*********************************************/
-ulong get_bus_freq (ulong dummy)
+ulong get_bus_freq(ulong dummy)
{
return gd->csb_clk;
}
-int print_clock_conf (void)
+int print_clock_conf(void)
{
printf("Clock configuration:\n");
- printf(" Coherent System Bus: %4d MHz\n",gd->csb_clk/1000000);
- printf(" Core: %4d MHz\n",gd->core_clk/1000000);
- debug(" Local Bus Controller:%4d MHz\n",gd->lbiu_clk/1000000);
- printf(" Local Bus: %4d MHz\n",gd->lclk_clk/1000000);
- debug(" DDR: %4d MHz\n",gd->ddr_clk/1000000);
- debug(" I2C: %4d MHz\n",gd->i2c_clk/1000000);
- debug(" TSEC1: %4d MHz\n",gd->tsec1_clk/1000000);
- debug(" TSEC2: %4d MHz\n",gd->tsec2_clk/1000000);
- debug(" USB MPH: %4d MHz\n",gd->usbmph_clk/1000000);
- debug(" USB DR: %4d MHz\n",gd->usbdr_clk/1000000);
-
+ printf(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000);
+ printf(" Core: %4d MHz\n", gd->core_clk / 1000000);
+#if defined (CONFIG_MPC8360)
+ printf(" QE: %4d MHz\n", gd->qe_clk / 1000000);
+#endif
+ printf(" Local Bus Controller:%4d MHz\n", gd->lbiu_clk / 1000000);
+ printf(" Local Bus: %4d MHz\n", gd->lclk_clk / 1000000);
+ printf(" DDR: %4d MHz\n", gd->ddr_clk / 1000000);
+#if defined (CONFIG_MPC8360)
+ printf(" DDR Secondary: %4d MHz\n", gd->ddr_sec_clk / 1000000);
+#endif
+ printf(" SEC: %4d MHz\n", gd->enc_clk / 1000000);
+ printf(" I2C1: %4d MHz\n", gd->i2c1_clk / 1000000);
+ printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000);
+#if defined(CONFIG_MPC8349)
+ printf(" TSEC1: %4d MHz\n", gd->tsec1_clk / 1000000);
+ printf(" TSEC2: %4d MHz\n", gd->tsec2_clk / 1000000);
+ printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000);
+ printf(" USB DR: %4d MHz\n", gd->usbdr_clk / 1000000);
+#endif
return 0;
}
generated by cgit v1.1 at 2024-11-17 14:20:19 +0000