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Code Issues

bcm47xx: Implement the remaining parts of PMU init.

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SVN-Revision: 14394
This commit is contained in:
Michael Büsch 2009-02-03 18:18:15 +00:00
parent 22e91f881e
commit 93e6c7a1db
1 changed files with 72 additions and 13 deletions
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85
target/linux/brcm47xx/patches-2.6.28/810-ssb-add-pmu-support.patch
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@ -1,3 +1,11 @@
Sent to mainline on 2009 Feb 03.
For further modifications, please use separate patch files. This simpifies
keeping track of what is upstream and what is not. Thanks.
--mb
Index: linux-2.6.28.2/drivers/ssb/Makefile
===================================================================
--- linux-2.6.28.2.orig/drivers/ssb/Makefile 2009-02-01 13:09:04.000000000 +0100
@ -13,8 +21,8 @@ Index: linux-2.6.28.2/drivers/ssb/Makefile
Index: linux-2.6.28.2/drivers/ssb/driver_chipcommon_pmu.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.28.2/drivers/ssb/driver_chipcommon_pmu.c 2009-02-02 20:59:48.000000000 +0100
@@ -0,0 +1,481 @@
+++ linux-2.6.28.2/drivers/ssb/driver_chipcommon_pmu.c 2009-02-03 19:07:23.000000000 +0100
@@ -0,0 +1,508 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom ChipCommon Power Management Unit driver
@ -254,17 +262,15 @@ Index: linux-2.6.28.2/drivers/ssb/driver_chipcommon_pmu.c
+ ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
+ (crystalfreq / 1000), (crystalfreq % 1000));
+
+WARN_ON(1); //TODO not fully implemented, yet.
+return;
+ /* First turn the PLL off. */
+ switch (bus->chip_id) {
+ case 0x4325:
+ chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
+ ~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
+ (1 << SSB_PMURES_4325_HT_AVAIL)));
+ (1 << SSB_PMURES_4325_HT_AVAIL)));
+ chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
+ ~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
+ (1 << SSB_PMURES_4325_HT_AVAIL)));
+ (1 << SSB_PMURES_4325_HT_AVAIL)));
+ /* Adjust the BBPLL to 2 on all channels later. */
+ buffer_strength = 0x222222;
+ break;
@ -283,10 +289,39 @@ Index: linux-2.6.28.2/drivers/ssb/driver_chipcommon_pmu.c
+
+ /* Set p1div and p2div. */
+ pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL0);
+ //TODO
+ pllctl &= ~(SSB_PMU1_PLLCTL0_P1DIV | SSB_PMU1_PLLCTL0_P2DIV);
+ pllctl |= ((u32)e->p1div << SSB_PMU1_PLLCTL0_P1DIV_SHIFT) & SSB_PMU1_PLLCTL0_P1DIV;
+ pllctl |= ((u32)e->p2div << SSB_PMU1_PLLCTL0_P2DIV_SHIFT) & SSB_PMU1_PLLCTL0_P2DIV;
+ ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL0, pllctl);
+
+ //TODO
+ /* Set ndiv int and ndiv mode */
+ pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL2);
+ pllctl &= ~(SSB_PMU1_PLLCTL2_NDIVINT | SSB_PMU1_PLLCTL2_NDIVMODE);
+ pllctl |= ((u32)e->ndiv_int << SSB_PMU1_PLLCTL2_NDIVINT_SHIFT) & SSB_PMU1_PLLCTL2_NDIVINT;
+ pllctl |= (1 << SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT) & SSB_PMU1_PLLCTL2_NDIVMODE;
+ ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, pllctl);
+
+ /* Set ndiv frac */
+ pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL3);
+ pllctl &= ~SSB_PMU1_PLLCTL3_NDIVFRAC;
+ pllctl |= ((u32)e->ndiv_frac << SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT) & SSB_PMU1_PLLCTL3_NDIVFRAC;
+ ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL3, pllctl);
+
+ /* Change the drive strength, if required. */
+ if (buffer_strength) {
+ pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL5);
+ pllctl &= ~SSB_PMU1_PLLCTL5_CLKDRV;
+ pllctl |= (buffer_strength << SSB_PMU1_PLLCTL5_CLKDRV_SHIFT) & SSB_PMU1_PLLCTL5_CLKDRV;
+ ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL5, pllctl);
+ }
+
+ /* Tune the crystalfreq and the divisor. */
+ pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
+ pmuctl &= ~(SSB_CHIPCO_PMU_CTL_ILP_DIV | SSB_CHIPCO_PMU_CTL_XTALFREQ);
+ pmuctl |= ((((u32)e->freq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
+ & SSB_CHIPCO_PMU_CTL_ILP_DIV;
+ pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
+ chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
+}
+
+static void ssb_pmu_pll_init(struct ssb_chipcommon *cc)
@ -531,7 +566,7 @@ Index: linux-2.6.28.2/drivers/ssb/driver_chipcommon.c
Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
===================================================================
--- linux-2.6.28.2.orig/include/linux/ssb/ssb_driver_chipcommon.h 2009-02-01 13:22:59.000000000 +0100
+++ linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h 2009-02-02 21:00:08.000000000 +0100
+++ linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h 2009-02-03 18:43:33.000000000 +0100
@@ -181,6 +181,16 @@
#define SSB_CHIPCO_PROG_WAITCNT 0x0124
#define SSB_CHIPCO_FLASH_CFG 0x0128
@ -549,7 +584,7 @@ Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
#define SSB_CHIPCO_UART0_DATA 0x0300
#define SSB_CHIPCO_UART0_IMR 0x0304
#define SSB_CHIPCO_UART0_FCR 0x0308
@@ -197,6 +207,172 @@
@@ -197,6 +207,196 @@
#define SSB_CHIPCO_UART1_LSR 0x0414
#define SSB_CHIPCO_UART1_MSR 0x0418
#define SSB_CHIPCO_UART1_SCRATCH 0x041C
@ -613,11 +648,35 @@ Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
+
+/* PMU rev 1 PLL registers */
+#define SSB_PMU1_PLLCTL0 0
+#define SSB_PMU1_PLLCTL0_P1DIV 0x00F00000 /* P1 div */
+#define SSB_PMU1_PLLCTL0_P1DIV_SHIFT 20
+#define SSB_PMU1_PLLCTL0_P2DIV 0x0F000000 /* P2 div */
+#define SSB_PMU1_PLLCTL0_P2DIV_SHIFT 24
+#define SSB_PMU1_PLLCTL1 1
+#define SSB_PMU1_PLLCTL1_M1DIV 0x000000FF /* M1 div */
+#define SSB_PMU1_PLLCTL1_M1DIV_SHIFT 0
+#define SSB_PMU1_PLLCTL1_M2DIV 0x0000FF00 /* M2 div */
+#define SSB_PMU1_PLLCTL1_M2DIV_SHIFT 8
+#define SSB_PMU1_PLLCTL1_M3DIV 0x00FF0000 /* M3 div */
+#define SSB_PMU1_PLLCTL1_M3DIV_SHIFT 16
+#define SSB_PMU1_PLLCTL1_M4DIV 0xFF000000 /* M4 div */
+#define SSB_PMU1_PLLCTL1_M4DIV_SHIFT 24
+#define SSB_PMU1_PLLCTL2 2
+#define SSB_PMU1_PLLCTL2_M5DIV 0x000000FF /* M5 div */
+#define SSB_PMU1_PLLCTL2_M5DIV_SHIFT 0
+#define SSB_PMU1_PLLCTL2_M6DIV 0x0000FF00 /* M6 div */
+#define SSB_PMU1_PLLCTL2_M6DIV_SHIFT 8
+#define SSB_PMU1_PLLCTL2_NDIVMODE 0x000E0000 /* NDIV mode */
+#define SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT 17
+#define SSB_PMU1_PLLCTL2_NDIVINT 0x1FF00000 /* NDIV int */
+#define SSB_PMU1_PLLCTL2_NDIVINT_SHIFT 20
+#define SSB_PMU1_PLLCTL3 3
+#define SSB_PMU1_PLLCTL3_NDIVFRAC 0x00FFFFFF /* NDIV frac */
+#define SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT 0
+#define SSB_PMU1_PLLCTL4 4
+#define SSB_PMU1_PLLCTL5 5
+#define SSB_PMU1_PLLCTL5_CLKDRV 0xFFFFFF00 /* clk drv */
+#define SSB_PMU1_PLLCTL5_CLKDRV_SHIFT 8
+
+/* BCM4312 PLL resource numbers. */
+#define SSB_PMURES_4312_SWITCHER_BURST 0
@ -722,7 +781,7 @@ Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
@@ -353,11 +529,20 @@
@@ -353,11 +553,20 @@
struct ssb_device;
struct ssb_serial_port;
@ -743,7 +802,7 @@ Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
};
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
@@ -365,6 +550,17 @@ static inline bool ssb_chipco_available(
@@ -365,6 +574,17 @@ static inline bool ssb_chipco_available(
return (cc->dev != NULL);
}
@ -761,7 +820,7 @@ Index: linux-2.6.28.2/include/linux/ssb/ssb_driver_chipcommon.h
extern void ssb_chipcommon_init(struct ssb_chipcommon *cc);
extern void ssb_chipco_suspend(struct ssb_chipcommon *cc);
@@ -406,4 +602,8 @@ extern int ssb_chipco_serial_init(struct
@@ -406,4 +626,8 @@ extern int ssb_chipco_serial_init(struct
struct ssb_serial_port *ports);
#endif /* CONFIG_SSB_SERIAL */