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Diffstat (limited to 'cpu/mpc83xx/speed.c')
-rw-r--r--cpu/mpc83xx/speed.c129
1 files changed, 79 insertions, 50 deletions
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c
index 7e53b1e60..bf3061654 100644
--- a/cpu/mpc83xx/speed.c
+++ b/cpu/mpc83xx/speed.c
@@ -25,6 +25,7 @@
#include <common.h>
#include <mpc83xx.h>
+#include <command.h>
#include <asm/processor.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -99,23 +100,29 @@ int get_clocks(void)
u32 lcrr;
u32 csb_clk;
-#if defined(CONFIG_MPC8349)
+#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X)
u32 tsec1_clk;
u32 tsec2_clk;
- u32 usbmph_clk;
u32 usbdr_clk;
#endif
+#ifdef CONFIG_MPC834X
+ u32 usbmph_clk;
+#endif
u32 core_clk;
u32 i2c1_clk;
+#if !defined(CONFIG_MPC832X)
u32 i2c2_clk;
+#endif
u32 enc_clk;
u32 lbiu_clk;
u32 lclk_clk;
u32 ddr_clk;
-#if defined (CONFIG_MPC8360)
+#if defined(CONFIG_MPC8360)
+ u32 ddr_sec_clk;
+#endif
+#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X)
u32 qepmf;
u32 qepdf;
- u32 ddr_sec_clk;
u32 qe_clk;
u32 brg_clk;
#endif
@@ -139,12 +146,12 @@ int get_clocks(void)
#endif
}
- spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT);
+ spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT);
csb_clk = pci_sync_in * (1 + clkin_div) * spmf;
sccr = im->clk.sccr;
-#if defined(CONFIG_MPC8349)
+#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X)
switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) {
case 0:
tsec1_clk = 0;
@@ -163,6 +170,26 @@ int get_clocks(void)
return -4;
}
+ switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) {
+ case 0:
+ usbdr_clk = 0;
+ break;
+ case 1:
+ usbdr_clk = csb_clk;
+ break;
+ case 2:
+ usbdr_clk = csb_clk / 2;
+ break;
+ case 3:
+ usbdr_clk = csb_clk / 3;
+ break;
+ default:
+ /* unkown SCCR_USBDRCM value */
+ return -8;
+ }
+#endif
+
+#if defined(CONFIG_MPC834X)
switch ((sccr & SCCR_TSEC2CM) >> SCCR_TSEC2CM_SHIFT) {
case 0:
tsec2_clk = 0;
@@ -201,24 +228,6 @@ int get_clocks(void)
return -7;
}
- switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) {
- case 0:
- usbdr_clk = 0;
- break;
- case 1:
- usbdr_clk = csb_clk;
- break;
- case 2:
- usbdr_clk = csb_clk / 2;
- break;
- case 3:
- usbdr_clk = csb_clk / 3;
- break;
- default:
- /* unkown SCCR_USBDRCM value */
- 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 then
@@ -226,11 +235,21 @@ int get_clocks(void)
*/
return -9;
}
+#elif defined(CONFIG_MPC831X)
+ tsec2_clk = tsec1_clk;
+
+ if (!(sccr & SCCR_TSEC1ON))
+ tsec1_clk = 0;
+ if (!(sccr & SCCR_TSEC2ON))
+ tsec2_clk = 0;
#endif
-#if defined (CONFIG_MPC8360)
+
+#if !defined(CONFIG_MPC834X)
i2c1_clk = csb_clk;
#endif
+#if !defined(CONFIG_MPC832X)
i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */
+#endif
switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) {
case 0:
@@ -249,12 +268,9 @@ int get_clocks(void)
/* 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
+ (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT));
lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT;
switch (lcrr) {
case 2:
@@ -266,16 +282,13 @@ int get_clocks(void)
/* unknown lcrr */
return -10;
}
-#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)
+ (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT));
+ corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_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
+ ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT));
#endif
corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5);
@@ -306,29 +319,35 @@ int get_clocks(void)
return -12;
}
-#if defined (CONFIG_MPC8360)
- qepmf = (im->reset.rcwl & RCWL_CEPMF) >> RCWL_CEPMF_SHIFT;
- qepdf = (im->reset.rcwl & RCWL_CEPDF) >> RCWL_CEPDF_SHIFT;
+#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X)
+ qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT;
+ qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_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)
+#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X)
gd->tsec1_clk = tsec1_clk;
gd->tsec2_clk = tsec2_clk;
- gd->usbmph_clk = usbmph_clk;
gd->usbdr_clk = usbdr_clk;
#endif
+#if defined(CONFIG_MPC834X)
+ gd->usbmph_clk = usbmph_clk;
+#endif
gd->core_clk = core_clk;
gd->i2c1_clk = i2c1_clk;
+#if !defined(CONFIG_MPC832X)
gd->i2c2_clk = i2c2_clk;
+#endif
gd->enc_clk = enc_clk;
gd->lbiu_clk = lbiu_clk;
gd->lclk_clk = lclk_clk;
gd->ddr_clk = ddr_clk;
-#if defined (CONFIG_MPC8360)
+#if defined(CONFIG_MPC8360)
gd->ddr_sec_clk = ddr_sec_clk;
+#endif
+#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X)
gd->qe_clk = qe_clk;
gd->brg_clk = brg_clk;
#endif
@@ -347,28 +366,38 @@ ulong get_bus_freq(ulong dummy)
return gd->csb_clk;
}
-int print_clock_conf(void)
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
printf("Clock configuration:\n");
- 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(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000);
+#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X)
printf(" QE: %4d MHz\n", gd->qe_clk / 1000000);
+ printf(" BRG: %4d MHz\n", gd->brg_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)
+#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);
+#if !defined(CONFIG_MPC832X)
printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000);
-#if defined(CONFIG_MPC8349)
+#endif
+#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X)
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
+#if defined(CONFIG_MPC834X)
+ printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000);
+#endif
return 0;
}
+
+U_BOOT_CMD(clocks, 1, 0, do_clocks,
+ "clocks - print clock configuration\n",
+ " clocks\n"
+);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-01 06:31:30 +0000