powerpc/mpc85xx: Fix core cluster PLL calculation for Chassis generation 2
Corenet based SoCs have different core clocks starting from Chassis
generation 2. Cores are organized into clusters. Each cluster has up to
4 cores sharing same clock, which can be chosen from one of three PLLs in
the cluster group with one of the devisors /1, /2 or /4. Two clusters are
put together as a cluster group. These two clusters share the PLLs but may
have different divisor. For example, core 0~3 are in cluster 1. Core 4~7
are in cluster 2. Core 8~11 are in cluster 3 and so on. Cluster 1 and 2
are cluster group A. Cluster 3 and 4 are in cluster group B. Cluster group
A has PLL1, PLL2, PLL3. Cluster group B has PLL4, PLL5. Core 0~3 may have
PLL1/2, core 4~7 may have PLL2/2. Core 8~11 may have PLL4/1.
PME and FMan blocks can take different PLLs, configured by RCW.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index 6c2bc34..f07a28b 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -76,8 +76,8 @@
[13] = 2, /* CC4 PPL / 2 */
[14] = 4, /* CC4 PPL / 4 */
};
- uint lcrr_div, i, freqCC_PLL[4], rcw_tmp;
- uint ratio[4];
+ uint i, freqCC_PLL[6], rcw_tmp;
+ uint ratio[6];
unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
uint mem_pll_rat;
@@ -97,13 +97,132 @@
ratio[1] = (in_be32(&clk->pllc2gsr) >> 1) & 0x3f;
ratio[2] = (in_be32(&clk->pllc3gsr) >> 1) & 0x3f;
ratio[3] = (in_be32(&clk->pllc4gsr) >> 1) & 0x3f;
- for (i = 0; i < 4; i++) {
+ ratio[4] = (in_be32(&clk->pllc5gsr) >> 1) & 0x3f;
+ ratio[5] = (in_be32(&clk->pllc6gsr) >> 1) & 0x3f;
+ for (i = 0; i < 6; i++) {
if (ratio[i] > 4)
freqCC_PLL[i] = sysclk * ratio[i];
else
freqCC_PLL[i] = sysInfo->freqSystemBus * ratio[i];
}
- rcw_tmp = in_be32(&gur->rcwsr[3]);
+#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
+ /*
+ * Each cluster has up to 4 cores, sharing the same PLL selection.
+ * The cluster assignment is fixed per SoC. There is no way identify the
+ * assignment so far, presuming the "first configuration" which is to
+ * fill the lower cluster group first before moving up to next group.
+ * PLL1, PLL2, PLL3 are cluster group A, feeding core 0~3 on cluster 1
+ * and core 4~7 on cluster 2
+ * PLL4, PLL5, PLL6 are cluster group B, feeding core 8~11 on cluster 3
+ * and core 12~15 on cluster 4 if existing
+ */
+ for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {
+ u32 c_pll_sel = (in_be32(&clk->clkc0csr + (cpu / 4) * 8) >> 27)
+ & 0xf;
+ u32 cplx_pll = core_cplx_PLL[c_pll_sel];
+ if (cplx_pll > 3)
+ printf("Unsupported architecture configuration"
+ " in function %s\n", __func__);
+ cplx_pll += (cpu / 8) * 3;
+
+ sysInfo->freqProcessor[cpu] =
+ freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel];
+ }
+#define PME_CLK_SEL 0xe0000000
+#define PME_CLK_SHIFT 29
+#define FM1_CLK_SEL 0x1c000000
+#define FM1_CLK_SHIFT 26
+ rcw_tmp = in_be32(&gur->rcwsr[7]);
+
+#ifdef CONFIG_SYS_DPAA_PME
+ switch ((rcw_tmp & PME_CLK_SEL) >> PME_CLK_SHIFT) {
+ case 1:
+ sysInfo->freqPME = freqCC_PLL[0];
+ break;
+ case 2:
+ sysInfo->freqPME = freqCC_PLL[0] / 2;
+ break;
+ case 3:
+ sysInfo->freqPME = freqCC_PLL[0] / 3;
+ break;
+ case 4:
+ sysInfo->freqPME = freqCC_PLL[0] / 4;
+ break;
+ case 6:
+ sysInfo->freqPME = freqCC_PLL[1] / 2;
+ break;
+ case 7:
+ sysInfo->freqPME = freqCC_PLL[1] / 3;
+ break;
+ default:
+ printf("Error: Unknown PME clock select!\n");
+ case 0:
+ sysInfo->freqPME = sysInfo->freqSystemBus / 2;
+ break;
+
+ }
+#endif
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+ switch ((rcw_tmp & FM1_CLK_SEL) >> FM1_CLK_SHIFT) {
+ case 1:
+ sysInfo->freqFMan[0] = freqCC_PLL[3];
+ break;
+ case 2:
+ sysInfo->freqFMan[0] = freqCC_PLL[3] / 2;
+ break;
+ case 3:
+ sysInfo->freqFMan[0] = freqCC_PLL[3] / 3;
+ break;
+ case 4:
+ sysInfo->freqFMan[0] = freqCC_PLL[3] / 4;
+ break;
+ case 6:
+ sysInfo->freqFMan[0] = freqCC_PLL[4] / 2;
+ break;
+ case 7:
+ sysInfo->freqFMan[0] = freqCC_PLL[4] / 3;
+ break;
+ default:
+ printf("Error: Unknown FMan1 clock select!\n");
+ case 0:
+ sysInfo->freqFMan[0] = sysInfo->freqSystemBus / 2;
+ break;
+ }
+#if (CONFIG_SYS_NUM_FMAN) == 2
+#define FM2_CLK_SEL 0x00000038
+#define FM2_CLK_SHIFT 3
+ rcw_tmp = in_be32(&gur->rcwsr[15]);
+ switch ((rcw_tmp & FM2_CLK_SEL) >> FM2_CLK_SHIFT) {
+ case 1:
+ sysInfo->freqFMan[1] = freqCC_PLL[4];
+ break;
+ case 2:
+ sysInfo->freqFMan[1] = freqCC_PLL[4] / 2;
+ break;
+ case 3:
+ sysInfo->freqFMan[1] = freqCC_PLL[4] / 3;
+ break;
+ case 4:
+ sysInfo->freqFMan[1] = freqCC_PLL[4] / 4;
+ break;
+ case 6:
+ sysInfo->freqFMan[1] = freqCC_PLL[3] / 2;
+ break;
+ case 7:
+ sysInfo->freqFMan[1] = freqCC_PLL[3] / 3;
+ break;
+ default:
+ printf("Error: Unknown FMan2 clock select!\n");
+ case 0:
+ sysInfo->freqFMan[1] = sysInfo->freqSystemBus / 2;
+ break;
+ }
+#endif /* CONFIG_SYS_NUM_FMAN == 2 */
+#endif /* CONFIG_SYS_DPAA_FMAN */
+
+#else /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
+
for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {
u32 c_pll_sel = (in_be32(&clk->clkc0csr + cpu*8) >> 27) & 0xf;
u32 cplx_pll = core_cplx_PLL[c_pll_sel];
@@ -111,7 +230,6 @@
sysInfo->freqProcessor[cpu] =
freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel];
}
-
#define PME_CLK_SEL 0x80000000
#define FM1_CLK_SEL 0x40000000
#define FM2_CLK_SEL 0x20000000
@@ -159,11 +277,10 @@
#endif
#endif
-#else
- uint plat_ratio,e500_ratio,half_freqSystemBus;
-#if defined(CONFIG_FSL_LBC)
- uint lcrr_div;
-#endif
+#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
+
+#else /* CONFIG_FSL_CORENET */
+ uint plat_ratio, e500_ratio, half_freqSystemBus;
int i;
#ifdef CONFIG_QE
__maybe_unused u32 qe_ratio;
@@ -210,6 +327,7 @@
#endif /* CONFIG_FSL_CORENET */
#if defined(CONFIG_FSL_LBC)
+ uint lcrr_div;
#if defined(CONFIG_SYS_LBC_LCRR)
/* We will program LCRR to this value later */
lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV;