Messages in this thread | | | Date | Wed, 22 Apr 2015 10:14:31 +0200 | From | Lukasz Majewski <> | Subject | Re: [PATCH 6/8] clk: samsung: exynos5800: fix cpu clock configuration data |
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Hi Bartlomiej,
> Fix cpu clock configuration data for Exynos5800 (it uses > higher PCLK_DBG divider values than Exynos5420 and supports > additional frequencies). > > Based on Hardkernel's kernel for ODROID-XU3 board. > > Cc: Tomasz Figa <tomasz.figa@gmail.com> > Cc: Mike Turquette <mturquette@linaro.org> > Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> > Cc: Thomas Abraham <thomas.ab@samsung.com> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> > --- > drivers/clk/samsung/clk-exynos5420.c | 36 > +++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), > 3 deletions(-) > > diff --git a/drivers/clk/samsung/clk-exynos5420.c > b/drivers/clk/samsung/clk-exynos5420.c index 9398a2d..462aaee 100644 > --- a/drivers/clk/samsung/clk-exynos5420.c > +++ b/drivers/clk/samsung/clk-exynos5420.c > @@ -1274,10 +1274,34 @@ static const struct exynos_cpuclk_cfg_data > exynos5420_eglclk_d[] __initconst = { { 0 }, > }; > > +static const struct exynos_cpuclk_cfg_data exynos5800_eglclk_d[] > __initconst = { > + { 2000000, E5420_EGL_DIV0(3, 7, 7, 4), }, > + { 1900000, E5420_EGL_DIV0(3, 7, 7, 4), }, > + { 1800000, E5420_EGL_DIV0(3, 7, 7, 4), }, > + { 1700000, E5420_EGL_DIV0(3, 7, 7, 3), }, > + { 1600000, E5420_EGL_DIV0(3, 7, 7, 3), }, > + { 1500000, E5420_EGL_DIV0(3, 7, 7, 3), }, > + { 1400000, E5420_EGL_DIV0(3, 7, 7, 3), }, > + { 1300000, E5420_EGL_DIV0(3, 7, 7, 2), }, > + { 1200000, E5420_EGL_DIV0(3, 7, 7, 2), }, > + { 1100000, E5420_EGL_DIV0(3, 7, 7, 2), }, > + { 1000000, E5420_EGL_DIV0(3, 7, 6, 2), }, > + { 900000, E5420_EGL_DIV0(3, 7, 6, 2), }, > + { 800000, E5420_EGL_DIV0(3, 7, 5, 2), }, > + { 700000, E5420_EGL_DIV0(3, 7, 5, 2), }, > + { 600000, E5420_EGL_DIV0(3, 7, 4, 2), }, > + { 500000, E5420_EGL_DIV0(3, 7, 3, 2), }, > + { 400000, E5420_EGL_DIV0(3, 7, 3, 2), }, > + { 300000, E5420_EGL_DIV0(3, 7, 3, 2), }, > + { 200000, E5420_EGL_DIV0(3, 7, 3, 2), }, > + { 0 }, > +}; > + > #define E5420_KFC_DIV(kpll, pclk, > aclk) \ ((((kpll) << 24) | > ((pclk) << 20) | ((aclk) << 4))) > static const struct exynos_cpuclk_cfg_data exynos5420_kfcclk_d[] > __initconst = { > + { 1400000, E5420_KFC_DIV(3, 5, 3), }, /* for Exynos5800 */ > { 1300000, E5420_KFC_DIV(3, 5, 2), }, > { 1200000, E5420_KFC_DIV(3, 5, 2), }, > { 1100000, E5420_KFC_DIV(3, 5, 2), }, > @@ -1357,9 +1381,15 @@ static void __init exynos5x_clk_init(struct > device_node *np, ARRAY_SIZE(exynos5800_gate_clks)); > } > > - exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", > - mout_cpu_p[0], mout_cpu_p[1], 0x200, > - exynos5420_eglclk_d, > ARRAY_SIZE(exynos5420_eglclk_d), 0); > + if (soc == EXYNOS5420) { > + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", > + mout_cpu_p[0], mout_cpu_p[1], 0x200, > + exynos5420_eglclk_d, > ARRAY_SIZE(exynos5420_eglclk_d), 0); > + } else { > + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", > + mout_cpu_p[0], mout_cpu_p[1], 0x200, > + exynos5800_eglclk_d, > ARRAY_SIZE(exynos5800_eglclk_d), 0); > + } > exynos_register_cpu_clock(ctx, CLK_KFC_CLK, "kfcclk", > mout_kfc_p[0], mout_kfc_p[1], 0x28200, > exynos5420_kfcclk_d, > ARRAY_SIZE(exynos5420_kfcclk_d), 0);
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
-- Best regards,
Lukasz Majewski
Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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