From 1045ff4d1af9e3e8a2ad4cf04a7263d49e90cfa7 Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Mon, 2 Dec 2019 16:34:21 -0600 Subject: [PATCH] ARM: DRA7: Fixup DSP OPP_HIGH clock rate on DRA76P/DRA77P SoCs The commit 1b42ab3eda8a ("ARM: DRA7: Fixup DSPEVE, IVA and GPU clock frequencies based on OPP") added the core logic to update the kernel device-tree blob to adjust the DSP, IVA and GPU DPLL clocks based on a one-time OPP choice selected in U-Boot for most of the DRA7xx/AM57xx family of SoCs. The DSPs on DRA76xP/DRA77xP SoCs (DRA76x ACD package SoCs) though provide a higher performance and can run at a higher clock frequency of 850 MHz at OPP_HIGH instead of 750 MHz. Fix up the logic to use the correct clock rates on these SoCs. Note that this higher clock rate is not applicable to other Jacinto 6 Plus SoCs (DRA75xP/DRA74xP SoCs or AM574x SoCs) that follow the ABZ package. Signed-off-by: Suman Anna Reviewed-by: Lokesh Vutla --- arch/arm/mach-omap2/omap5/fdt.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-omap2/omap5/fdt.c b/arch/arm/mach-omap2/omap5/fdt.c index 8dee555c10..5ba8806dd7 100644 --- a/arch/arm/mach-omap2/omap5/fdt.c +++ b/arch/arm/mach-omap2/omap5/fdt.c @@ -180,6 +180,14 @@ u32 dra7_opp_dsp_clk_rates[NUM_OPPS][OPP_DSP_CLK_NUM] = { {750000000, 750000000, 500000000}, /* OPP_HIGH */ }; +/* DSP clock rates on DRA76x ACD-package based SoCs */ +u32 dra76_opp_dsp_clk_rates[NUM_OPPS][OPP_DSP_CLK_NUM] = { + {}, /* OPP_LOW */ + {600000000, 600000000, 400000000}, /* OPP_NOM */ + {700000000, 700000000, 466666667}, /* OPP_OD */ + {850000000, 850000000, 566666667}, /* OPP_HIGH */ +}; + /* IVA voltage domain */ u32 dra7_opp_iva_clk_rates[NUM_OPPS][OPP_IVA_CLK_NUM] = { {}, /* OPP_LOW */ @@ -257,6 +265,10 @@ static void ft_opp_clock_fixups(void *fdt, bd_t *bd) /* fixup DSP clocks */ clk_names = dra7_opp_dsp_clk_names; clk_rates = dra7_opp_dsp_clk_rates[get_voltrail_opp(VOLT_EVE)]; + /* adjust for higher OPP_HIGH clock rate on DRA76xP/DRA77xP SoCs */ + if (is_dra76x_acd()) + clk_rates = dra76_opp_dsp_clk_rates[get_voltrail_opp(VOLT_EVE)]; + ret = ft_fixup_clocks(fdt, clk_names, clk_rates, OPP_DSP_CLK_NUM); if (ret) { printf("ft_fixup_clocks failed for DSP voltage domain: %s\n", -- 2.39.5