diff options
| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | 2017-12-09 16:59:17 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-12-20 23:41:45 +0300 |
| commit | fbd1cec57064aa1380726ec899c49fcd84e702b9 (patch) | |
| tree | 17a239d70f4f03ca2121d88f16d0c9c4941be511 /arch/arc/plat-axs10x | |
| parent | 7bde846d0957fb81ac0bf8c4e2cab284a1da34e0 (diff) | |
| download | linux-fbd1cec57064aa1380726ec899c49fcd84e702b9.tar.xz | |
ARC: [plat-axs103]: Set initial core pll output frequency
Set initial core pll output frequency specified in device tree to
100MHz for SMP configuration and 90MHz for UP configuration.
It will be applied at the core pll driver probing.
Update platform quirk for decreasing core frequency for quad core
configuration.
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/plat-axs10x')
| -rw-r--r-- | arch/arc/plat-axs10x/axs10x.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c index f1ac6790da5f..ac1a712f6f1f 100644 --- a/arch/arc/plat-axs10x/axs10x.c +++ b/arch/arc/plat-axs10x/axs10x.c @@ -320,22 +320,18 @@ static void __init axs103_early_init(void) unsigned int num_cores = (read_aux_reg(ARC_REG_MCIP_BCR) >> 16) & 0x3F; if (num_cores > 2) { u32 freq = 50, orig; - /* - * TODO: use cpu node "cpu-freq" param instead of platform-specific - * "/cpu_card/core_clk" as it works only if we use fixed-clock for cpu. - */ int off = fdt_path_offset(initial_boot_params, "/cpu_card/core_clk"); const struct fdt_property *prop; prop = fdt_get_property(initial_boot_params, off, - "clock-frequency", NULL); + "assigned-clock-rates", NULL); orig = be32_to_cpu(*(u32*)(prop->data)) / 1000000; /* Patching .dtb in-place with new core clock value */ if (freq != orig ) { freq = cpu_to_be32(freq * 1000000); fdt_setprop_inplace(initial_boot_params, off, - "clock-frequency", &freq, sizeof(freq)); + "assigned-clock-rates", &freq, sizeof(freq)); } } #endif |