[U-Boot-Users] [PATCH 1/2] mpc83xx: add support for more system clock performance controls
Kim Phillips
kim.phillips at freescale.com
Wed Jan 16 07:38:01 CET 2008
System registers that are modified are the Arbiter Configuration
Register (ACR), the System Priority Control Register (SPCR), and the
System Clock Configuration Register (SCCR).
Signed-off by: Michael F. Reiss <Michael.F.Reiss at freescale.com>
Signed-off by: Joe D'Abbraccio <ljd015 at freescale.com>
Signed-off-by: Kim Phillips <kim.phillips at freescale.com>
---
cpu/mpc83xx/cpu_init.c | 73 +++++++++++++++++++++++++++++++++--------------
cpu/mpc83xx/speed.c | 12 ++++----
include/mpc83xx.h | 13 ++++++--
3 files changed, 67 insertions(+), 31 deletions(-)
diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c
index 18d5a76..3337d8c 100644
--- a/cpu/mpc83xx/cpu_init.c
+++ b/cpu/mpc83xx/cpu_init.c
@@ -78,59 +78,88 @@ void cpu_init_f (volatile immap_t * im)
im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSECEP) | (CFG_SPCR_TSECEP << SPCR_TSECEP_SHIFT);
#endif
+#ifdef CFG_ACR_RPTCNT
+ /* Arbiter repeat count */
+ im->arbiter.acr = (im->arbiter.acr & ~(ACR_RPTCNT)) |
+ (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT);
+#endif
+
+#ifdef CFG_SPCR_TSECEP
+ /* all TSEC's Emergency priority */
+ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSECEP) |
+ (CFG_SPCR_TSECEP << SPCR_TSECEP_SHIFT);
+#endif
+
#ifdef CFG_SPCR_TSEC1EP
/* TSEC1 Emergency priority */
- im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT);
+ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) |
+ (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT);
#endif
#ifdef CFG_SPCR_TSEC2EP
/* TSEC2 Emergency priority */
- im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT);
+ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) |
+ (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT);
+#endif
+
+#ifdef CFG_SCCR_ENCCM
+ /* Encryption clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) |
+ (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT);
+#endif
+
+#ifdef CFG_SCCR_PCICM
+ /* PCI & DMA clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) |
+ (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT);
+#endif
+
+#ifdef CFG_SCCR_TSECCM
+ /* all TSEC's clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSECCM) |
+ (CFG_SCCR_TSECCM << SCCR_TSECCM_SHIFT);
#endif
#ifdef CFG_SCCR_TSEC1CM
/* TSEC1 clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT);
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) |
+ (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT);
#endif
#ifdef CFG_SCCR_TSEC2CM
- /* TSEC2 & I2C1 clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT);
+ /* TSEC2 clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) |
+ (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT);
#endif
#ifdef CFG_SCCR_TSEC1ON
/* TSEC1 clock switch */
- im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1ON) | (CFG_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT);
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1ON) |
+ (CFG_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT);
#endif
#ifdef CFG_SCCR_TSEC2ON
/* TSEC2 clock switch */
- im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2ON) | (CFG_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT);
+ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2ON) |
+ (CFG_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT);
#endif
#ifdef CFG_SCCR_USBMPHCM
/* USB MPH clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT);
-#endif
-
-#ifdef CFG_SCCR_PCICM
- /* PCI & DMA clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) | (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT);
+ im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) |
+ (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT);
#endif
#ifdef CFG_SCCR_USBDRCM
/* USB DR clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) | (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT);
+ im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) |
+ (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT);
#endif
-#ifdef CFG_SCCR_ENCCM
- /* Encryption clock mode */
- im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) | (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT);
-#endif
-
-#ifdef CFG_ACR_RPTCNT
- /* Arbiter repeat count */
- im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT));
+#ifdef CFG_SCCR_SATACM
+ /* SATA controller clock mode */
+ im->clk.sccr = (im->clk.sccr & ~SCCR_SATACM) |
+ (CFG_SCCR_SATACM << SCCR_SATACM_SHIFT);
#endif
/* RSR - Reset Status Register - clear all status (4.6.1.3) */
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c
index 4f5a866..61c9379 100644
--- a/cpu/mpc83xx/speed.c
+++ b/cpu/mpc83xx/speed.c
@@ -367,21 +367,21 @@ int get_clocks(void)
#endif
#if defined(CONFIG_MPC837X) || defined(CONFIG_MPC8315)
- switch ((sccr & SCCR_SATA1CM) >> SCCR_SATA1CM_SHIFT) {
- case 0:
+ switch ((sccr & SCCR_SATACM) >> SCCR_SATACM_SHIFT) {
+ case SCCR_SATACM_0:
sata_clk = 0;
break;
- case 1:
+ case SCCR_SATACM_1:
sata_clk = csb_clk;
break;
- case 2:
+ case SCCR_SATACM_2:
sata_clk = csb_clk / 2;
break;
- case 3:
+ case SCCR_SATACM_3:
sata_clk = csb_clk / 3;
break;
default:
- /* unkown SCCR_SATA1CM value */
+ /* unkown SCCR_SATACM value */
return -11;
}
#endif
diff --git a/include/mpc83xx.h b/include/mpc83xx.h
index 7299ca0..39cecf2 100644
--- a/include/mpc83xx.h
+++ b/include/mpc83xx.h
@@ -725,13 +725,20 @@
#define SCCR_USBCM_3 0x00F00000
#elif defined(CONFIG_MPC8313)
-/* TSEC1 bits are for TSEC2 as well */
#define SCCR_TSEC1CM 0xc0000000
#define SCCR_TSEC1CM_SHIFT 30
+#define SCCR_TSEC1CM_0 0x00000000
#define SCCR_TSEC1CM_1 0x40000000
#define SCCR_TSEC1CM_2 0x80000000
#define SCCR_TSEC1CM_3 0xC0000000
+#define SCCR_TSEC2CM 0x30000000
+#define SCCR_TSEC2CM_SHIFT 28
+#define SCCR_TSEC2CM_0 0x00000000
+#define SCCR_TSEC2CM_1 0x10000000
+#define SCCR_TSEC2CM_2 0x20000000
+#define SCCR_TSEC2CM_3 0x30000000
+
#define SCCR_TSEC1ON 0x20000000
#define SCCR_TSEC1ON_SHIFT 29
#define SCCR_TSEC2ON 0x10000000
@@ -831,8 +838,6 @@
#define SCCR_PCIEXP2CM_3 0x000c0000
/* All of the four SATA controllers must have the same clock ratio */
-#define SCCR_SATA1CM 0x000000c0
-#define SCCR_SATA1CM_SHIFT 6
#define SCCR_SATACM 0x000000ff
#define SCCR_SATACM_SHIFT 0
#define SCCR_SATACM_0 0x00000000
@@ -852,6 +857,7 @@
*/
#define CSCONFIG_EN 0x80000000
#define CSCONFIG_AP 0x00800000
+#define CSCONFIG_ODT_WR_ACS 0x00010000
#define CSCONFIG_ROW_BIT 0x00000700
#define CSCONFIG_ROW_BIT_12 0x00000000
#define CSCONFIG_ROW_BIT_13 0x00000100
@@ -1480,6 +1486,7 @@
/* DDRCDR - DDR Control Driver Register
*/
+#define DDRCDR_DHC_EN 0x80000000
#define DDRCDR_EN 0x40000000
#define DDRCDR_PZ 0x3C000000
#define DDRCDR_PZ_MAXZ 0x00000000
--
1.5.3
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