> -----Original Message-----
> From: Premi, Sanjeev
> Sent: Tuesday, October 27, 2009 7:33 PM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Premi, Sanjeev
> Subject: [PATCH 1/2] AM35xx: Runtime detection of the device
>
> Add support to detect AM3505/AM3517 devices at runtime.
> Also updates the CPU names printed during boot.
>
> Signed-off-by: Sanjeev Premi <premi@xxxxxx>
> ---
> arch/arm/mach-omap2/id.c | 43
> ++++++++++++++++++++++++++++----
> arch/arm/plat-omap/include/plat/cpu.h | 12 +++++++++
> 2 files changed, 49 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
> index 1c15112..87efb73 100644
> --- a/arch/arm/mach-omap2/id.c
> +++ b/arch/arm/mach-omap2/id.c
> @@ -242,6 +242,21 @@ void __init omap3_check_revision(void)
> omap_revision = OMAP3630_REV_ES1_0;
> }
> break;
> + case 0xb868:
> + /* Handle OMAP35xx/AM35xx devices
> + *
> + * Set the device to be OMAP3517 here. Actual device
> + * is identified later based on the features.
> + */
> + switch (rev) {
> + case 0:
> + omap_revision = OMAP3505_REV(rev);
> + break;
> + default:
> + /* Use the latest known revision as default */
> + omap_revision = OMAP3505_REV(rev);
> + }
> + break;
> default:
> /* Unknown default to latest silicon rev as default*/
> omap_revision = OMAP3630_REV_ES1_0;
> @@ -267,20 +282,36 @@ void __init omap3_cpuinfo(void)
> * and CPU class bits.
> */
> if (cpu_is_omap3630())
> - strcpy(cpu_name, "3630");
> + strcpy(cpu_name, "OMAP3630");
> + else if (omap_rev() && OMAP35XX_CLASS) {
[sp] Just noticed that this should have been a "&" instead of "&&";
a copy paste while re-working.
... better still, cpu_is_omap3505().
~sanjeev
> + /*
> + * AM3517, AM3505 devices
> + */
> + if (omap3_has_sgx()) {
> + omap_revision = OMAP3517_REV(rev);
> + strcpy(cpu_name, "AM3517");
> + }
> + else {
> + /* Already set in omap3_check_revision() */
> + strcpy(cpu_name, "AM3505");
> + }
> + }
> + /*
> + * OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices
> + */
> else if (omap3_has_iva() && omap3_has_sgx())
> - strcpy(cpu_name, "3430/3530");
> + strcpy(cpu_name, "OMAP3430/3530");
> else if (omap3_has_sgx()) {
> omap_revision = OMAP3525_REV(rev);
> - strcpy(cpu_name, "3525");
> + strcpy(cpu_name, "OMAP3525");
> }
> else if (omap3_has_iva()) {
> omap_revision = OMAP3515_REV(rev);
> - strcpy(cpu_name, "3515");
> + strcpy(cpu_name, "OMAP3515");
> }
> else {
> omap_revision = OMAP3503_REV(rev);
> - strcpy(cpu_name, "3503");
> + strcpy(cpu_name, "OMAP3503");
> }
>
> switch (rev) {
> @@ -307,7 +338,7 @@ void __init omap3_cpuinfo(void)
> /*
> * Print verbose information
> */
> - pr_info("OMAP%s ES%s\n", cpu_name, cpu_rev);
> + pr_info("%s ES%s\n", cpu_name, cpu_rev);
>
> OMAP3_SHOW_FEATURE(l2cache);
> OMAP3_SHOW_FEATURE(iva);
> diff --git a/arch/arm/plat-omap/include/plat/cpu.h
> b/arch/arm/plat-omap/include/plat/cpu.h
> index 7cb0556..f1cc913 100644
> --- a/arch/arm/plat-omap/include/plat/cpu.h
> +++ b/arch/arm/plat-omap/include/plat/cpu.h
> @@ -284,6 +284,8 @@ IS_OMAP_SUBCLASS(363x, 0x363)
> * cpu_is_omap2423(): True for OMAP2423
> * cpu_is_omap2430(): True for OMAP2430
> * cpu_is_omap3430(): True for OMAP3430
> + * cpu_is_omap3505(): True for OMAP3505
> + * cpu_is_omap3517(): True for OMAP3517
> */
> #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
>
> @@ -307,6 +309,8 @@ IS_OMAP_TYPE(2422, 0x2422)
> IS_OMAP_TYPE(2423, 0x2423)
> IS_OMAP_TYPE(2430, 0x2430)
> IS_OMAP_TYPE(3430, 0x3430)
> +IS_OMAP_TYPE(3505, 0x3505)
> +IS_OMAP_TYPE(3517, 0x3517)
>
> #define cpu_is_omap310() 0
> #define cpu_is_omap730() 0
> @@ -325,6 +329,8 @@ IS_OMAP_TYPE(3430, 0x3430)
> #define cpu_is_omap3515() 0
> #define cpu_is_omap3525() 0
> #define cpu_is_omap3530() 0
> +#define cpu_is_omap3505() 0
> +#define cpu_is_omap3517() 0
> #define cpu_is_omap3430() 0
> #define cpu_is_omap3630() 0
>
> @@ -380,6 +386,8 @@ IS_OMAP_TYPE(3430, 0x3430)
> # undef cpu_is_omap3515
> # undef cpu_is_omap3525
> # undef cpu_is_omap3530
> +# undef cpu_is_omap3505
> +# undef cpu_is_omap3517
> # define cpu_is_omap3430() is_omap3430()
> # define cpu_is_omap3503 (cpu_is_omap3430() &&
> \
>
> (!omap3_has_iva()) && \
> @@ -391,6 +399,8 @@ IS_OMAP_TYPE(3430, 0x3430)
>
> (omap3_has_sgx()) && \
> (!omap3_has_iva()))
> # define cpu_is_omap3530 (cpu_is_omap3430())
> +# define cpu_is_omap3505 is_omap3505()
> +# define cpu_is_omap3517 is_omap3517()
> # undef cpu_is_omap3630
> # define cpu_is_omap3630() is_omap363x()
> #endif
> @@ -430,6 +440,8 @@ IS_OMAP_TYPE(3430, 0x3430)
> #define OMAP3515_REV(v) (OMAP35XX_CLASS |
> (0x3515 << 16) | (v << 12))
> #define OMAP3525_REV(v) (OMAP35XX_CLASS |
> (0x3525 << 16) | (v << 12))
> #define OMAP3530_REV(v) (OMAP35XX_CLASS |
> (0x3530 << 16) | (v << 12))
> +#define OMAP3505_REV(v) (OMAP35XX_CLASS |
> (0x3505 << 16) | (v << 12))
> +#define OMAP3517_REV(v) (OMAP35XX_CLASS |
> (0x3517 << 16) | (v << 12))
>
> #define OMAP443X_CLASS 0x44300034
>
> --
> 1.6.2.2
>
> --
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