From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Sun, 21 Jan 2018 17:31:03 +0100 Subject: [U-Boot] [PATCH V5 13/31] imx: cpu: add cpu speed/grade for i.MX8M In-Reply-To: <20180110052048.4425-14-peng.fan@nxp.com> References: <20180110052048.4425-1-peng.fan@nxp.com> <20180110052048.4425-14-peng.fan@nxp.com> Message-ID: <1e7e90ae-cfa6-997e-7a70-a3495b090d05@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 10/01/2018 06:20, Peng Fan wrote: > Use more general enum types for speed grade. > Refine get_cpu_speed_grade_hz to support i.MX8M. > > Signed-off-by: Peng Fan > Cc: Stefano Babic > Cc: Fabio Estevam > --- > arch/arm/mach-imx/cpu.c | 27 +++++++++++++++------------ > 1 file changed, 15 insertions(+), 12 deletions(-) > > diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c > index 52dbafb50c..fd6d08c533 100644 > --- a/arch/arm/mach-imx/cpu.c > +++ b/arch/arm/mach-imx/cpu.c > @@ -333,16 +333,18 @@ void set_chipselect_size(int const cs_size) > } > #endif > > -#if defined(CONFIG_MX7) > +#if defined(CONFIG_MX7) || defined(CONFIG_MX8M) > /* > * OCOTP_TESTER3[9:8] (see Fusemap Description Table offset 0x440) > * defines a 2-bit SPEED_GRADING > */ > #define OCOTP_TESTER3_SPEED_SHIFT 8 > -#define OCOTP_TESTER3_SPEED_800MHZ 0 > -#define OCOTP_TESTER3_SPEED_500MHZ 1 > -#define OCOTP_TESTER3_SPEED_1GHZ 2 > -#define OCOTP_TESTER3_SPEED_1P2GHZ 3 > +enum cpu_speed { > + OCOTP_TESTER3_SPEED_GRADE0, > + OCOTP_TESTER3_SPEED_GRADE1, > + OCOTP_TESTER3_SPEED_GRADE2, > + OCOTP_TESTER3_SPEED_GRADE3, > +}; > > u32 get_cpu_speed_grade_hz(void) > { > @@ -357,15 +359,16 @@ u32 get_cpu_speed_grade_hz(void) > val &= 0x3; > > switch(val) { > - case OCOTP_TESTER3_SPEED_800MHZ: > + case OCOTP_TESTER3_SPEED_GRADE0: > return 800000000; > - case OCOTP_TESTER3_SPEED_500MHZ: > - return 500000000; > - case OCOTP_TESTER3_SPEED_1GHZ: > - return 1000000000; > - case OCOTP_TESTER3_SPEED_1P2GHZ: > - return 1200000000; > + case OCOTP_TESTER3_SPEED_GRADE1: > + return is_mx7() ? 500000000 : 1000000000; > + case OCOTP_TESTER3_SPEED_GRADE2: > + return is_mx7() ? 1000000000 : 1300000000; > + case OCOTP_TESTER3_SPEED_GRADE3: > + return is_mx7() ? 1200000000 : 1500000000; > } > + > return 0; > } > > Reviewed-by: Stefano Babic Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================