powerpc/mp: add support for discontiguous cores
Some SOCs have discontiguously-numbered cores, and so we can't determine the
valid core numbers via the FRR register any more. We define
CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions
to process the mask and enumerate over the set of valid cores.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index a83dfeb..ce47532 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -41,6 +41,7 @@
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
#ifdef CONFIG_FSL_CORENET
volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR);
+ unsigned int cpu;
const u8 core_cplx_PLL[16] = {
[ 0] = 0, /* CC1 PPL / 1 */
@@ -97,11 +98,11 @@
freqCC_PLL[i] = sysInfo->freqSystemBus * ratio[i];
}
rcw_tmp = in_be32(&gur->rcwsr[3]);
- for (i = 0; i < cpu_numcores(); i++) {
- u32 c_pll_sel = (in_be32(&clk->clkc0csr + i*8) >> 27) & 0xf;
+ 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];
- sysInfo->freqProcessor[i] =
+ sysInfo->freqProcessor[cpu] =
freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel];
}