summaryrefslogtreecommitdiff
path: root/cpu/mpc8260
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/mpc8260')
-rw-r--r--cpu/mpc8260/commproc.c11
-rw-r--r--cpu/mpc8260/cpu.c27
-rw-r--r--cpu/mpc8260/speed.c16
3 files changed, 40 insertions, 14 deletions
diff --git a/cpu/mpc8260/commproc.c b/cpu/mpc8260/commproc.c
index c523ee4..72cceb3 100644
--- a/cpu/mpc8260/commproc.c
+++ b/cpu/mpc8260/commproc.c
@@ -111,9 +111,9 @@ m8260_cpm_hostalloc(uint size, uint align)
* to port numbers). Documentation uses 1-based numbering.
*/
#define BRG_INT_CLK gd->brg_clk
-#define BRG_UART_CLK ((BRG_INT_CLK + 15) / 16)
+#define BRG_UART_CLK (BRG_INT_CLK / 16)
-/* This function is used by UARTS, or anything else that uses a 16x
+/* This function is used by UARTs, or anything else that uses a 16x
* oversampled clock.
*/
void
@@ -123,9 +123,10 @@ m8260_cpm_setbrg(uint brg, uint rate)
volatile immap_t *immr = (immap_t *)CFG_IMMR;
volatile uint *bp;
+ uint cd = BRG_UART_CLK / rate;
- /* This is good enough to get SMCs running.....
- */
+ if ((BRG_UART_CLK % rate) < (rate / 2))
+ cd--;
if (brg < 4) {
bp = (uint *)&immr->im_brgc1;
}
@@ -134,7 +135,7 @@ m8260_cpm_setbrg(uint brg, uint rate)
brg -= 4;
}
bp += brg;
- *bp = (((((BRG_UART_CLK+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN;
+ *bp = (cd << 1) | CPM_BRG_EN;
}
/* This function is used to set high speed synchronous baud rate
diff --git a/cpu/mpc8260/cpu.c b/cpu/mpc8260/cpu.c
index 7662fc6..2736702 100644
--- a/cpu/mpc8260/cpu.c
+++ b/cpu/mpc8260/cpu.c
@@ -22,7 +22,7 @@
*/
/*
- * CPU specific code for the MPC8255 / MPC8260 CPUs
+ * CPU specific code for the MPC825x / MPC826x / MPC827x / MPC828x
*
* written or collected and sometimes rewritten by
* Magnus Damm <damm@bitsmart.com>
@@ -35,6 +35,9 @@
*
* added 8260 masks by
* Marius Groeger <mag@sysgo.de>
+ *
+ * added HiP7 (8270/8275/8280) processors support by
+ * Yuli Barcohen <yuli@arabellasw.com>
*/
#include <common.h>
@@ -56,15 +59,27 @@ int checkcpu (void)
puts ("CPU: ");
- if (((pvr >> 16) & 0xff) != 0x81)
+ switch (pvr) {
+ case PVR_8260:
+ case PVR_8260_HIP3:
+ k = 3;
+ break;
+ case PVR_8260_HIP4:
+ k = 4;
+ break;
+ case PVR_8260_HIP7:
+ k = 7;
+ break;
+ default:
return -1; /* whoops! not an MPC8260 */
+ }
rev = pvr & 0xff;
immr = immap->im_memctl.memc_immr;
if ((immr & IMMR_ISB_MSK) != CFG_IMMR)
return -1; /* whoops! someone moved the IMMR */
- printf (CPU_ID_STR " (Rev %02x, Mask ", rev);
+ printf (CPU_ID_STR " (HiP%d Rev %02x, Mask ", k, rev);
/*
* the bottom 16 bits of the immr are the Part Number and Mask Number
@@ -104,6 +119,12 @@ int checkcpu (void)
case 0x0062:
printf ("B.1 4K25A");
break;
+ case 0x0A00:
+ printf ("0.0 0K49M");
+ break;
+ case 0x0A01:
+ printf ("0.1 1K49M");
+ break;
default:
printf ("unknown [immr=0x%04x,k=0x%04x]", m, k);
break;
diff --git a/cpu/mpc8260/speed.c b/cpu/mpc8260/speed.c
index 1f53c4f..6a3176a 100644
--- a/cpu/mpc8260/speed.c
+++ b/cpu/mpc8260/speed.c
@@ -120,15 +120,19 @@ int get_clocks (void)
scmr = immap->im_clkrst.car_scmr;
corecnf = (scmr & SCMR_CORECNF_MSK) >> SCMR_CORECNF_SHIFT;
- busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT;
- cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT;
- plldf = (scmr & SCMR_PLLDF) ? 1 : 0;
- pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT;
-
cp = &corecnf_tab[corecnf];
- gd->vco_out = (clkin * 2 * (pllmf + 1)) / (plldf + 1);
+ busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT;
+ cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT;
+ if (get_pvr () == PVR_8260_HIP7) { /* HiP7 */
+ pllmf = (scmr & SCMR_PLLMF_MSKH7) >> SCMR_PLLMF_SHIFT;
+ gd->vco_out = clkin * (pllmf + 1);
+ } else { /* HiP3, HiP4 */
+ pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT;
+ plldf = (scmr & SCMR_PLLDF) ? 1 : 0;
+ gd->vco_out = (clkin * 2 * (pllmf + 1)) / (plldf + 1);
+ }
#if 0
if (gd->vco_out / (busdf + 1) != clkin) {
/* aaarrrggghhh!!! */