Ulrik Bech Hald <ubh@xxxxxx> writes:
> Enabling registration of IVA and SECURE WDT devices. Making
> ick and fck for IVA and SECURE WDTs accessible.
>
> Tested on Zoom1 OMAP3 platform
>
> Signed-off-by: Ulrik Bech Hald <ubh@xxxxxx>
Acked-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/mach-omap1/clock.c | 6 +-
> arch/arm/mach-omap2/clock24xx.c | 4 +-
> arch/arm/mach-omap2/clock34xx.c | 12 +++---
> arch/arm/plat-omap/devices.c | 91 ++++++++++++++++++++++++++++++++-------
> 4 files changed, 86 insertions(+), 27 deletions(-)
>
> diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
> index 436eed2..c0b5849 100644
> --- a/arch/arm/mach-omap1/clock.c
> +++ b/arch/arm/mach-omap1/clock.c
> @@ -85,9 +85,9 @@ static struct omap_clk omap_clks[] = {
> CLK(NULL, "arm_gpio_ck", &arm_gpio_ck, CK_1510 | CK_310),
> CLK(NULL, "armxor_ck", &armxor_ck.clk, CK_16XX | CK_1510 | CK_310),
> CLK(NULL, "armtim_ck", &armtim_ck.clk, CK_16XX | CK_1510 | CK_310),
> - CLK("omap_wdt", "fck", &armwdt_ck.clk, CK_16XX | CK_1510 | CK_310),
> - CLK("omap_wdt", "ick", &armper_ck.clk, CK_16XX),
> - CLK("omap_wdt", "ick", &dummy_ck, CK_1510 | CK_310),
> + CLK("omap_wdt.2", "fck", &armwdt_ck.clk, CK_16XX | CK_1510 | CK_310),
> + CLK("omap_wdt.2", "ick", &armper_ck.clk, CK_16XX),
> + CLK("omap_wdt.2", "ick", &dummy_ck, CK_1510 | CK_310),
> CLK(NULL, "arminth_ck", &arminth_ck1510, CK_1510 | CK_310),
> CLK(NULL, "arminth_ck", &arminth_ck16xx, CK_16XX),
> /* CK_GEN2 clocks */
> diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
> index 44de027..4fe3def 100644
> --- a/arch/arm/mach-omap2/clock24xx.c
> +++ b/arch/arm/mach-omap2/clock24xx.c
> @@ -165,8 +165,8 @@ static struct omap_clk omap24xx_clks[] = {
> CLK(NULL, "uart3_fck", &uart3_fck, CK_243X | CK_242X),
> CLK(NULL, "gpios_ick", &gpios_ick, CK_243X | CK_242X),
> CLK(NULL, "gpios_fck", &gpios_fck, CK_243X | CK_242X),
> - CLK("omap_wdt", "ick", &mpu_wdt_ick, CK_243X | CK_242X),
> - CLK("omap_wdt", "fck", &mpu_wdt_fck, CK_243X | CK_242X),
> + CLK("omap_wdt.2", "ick", &mpu_wdt_ick, CK_243X | CK_242X),
> + CLK("omap_wdt.2", "fck", &mpu_wdt_fck, CK_243X | CK_242X),
> CLK(NULL, "sync_32k_ick", &sync_32k_ick, CK_243X | CK_242X),
> CLK(NULL, "wdt1_ick", &wdt1_ick, CK_243X | CK_242X),
> CLK(NULL, "omapctrl_ick", &omapctrl_ick, CK_243X | CK_242X),
> diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
> index 045da92..aaea62c 100644
> --- a/arch/arm/mach-omap2/clock34xx.c
> +++ b/arch/arm/mach-omap2/clock34xx.c
> @@ -215,11 +215,11 @@ static struct omap_clk omap34xx_clks[] = {
> CLK(NULL, "gpt1_fck", &gpt1_fck, CK_343X),
> CLK(NULL, "wkup_32k_fck", &wkup_32k_fck, CK_343X),
> CLK(NULL, "gpio1_dbck", &gpio1_dbck, CK_343X),
> - CLK("omap_wdt", "fck", &wdt2_fck, CK_343X),
> + CLK("omap_wdt.1", "fck", &wdt2_fck, CK_343X),
> CLK(NULL, "wkup_l4_ick", &wkup_l4_ick, CK_343X),
> CLK(NULL, "usim_ick", &usim_ick, CK_3430ES2),
> - CLK("omap_wdt", "ick", &wdt2_ick, CK_343X),
> - CLK(NULL, "wdt1_ick", &wdt1_ick, CK_343X),
> + CLK("omap_wdt.1", "ick", &wdt2_ick, CK_343X),
> + CLK("omap_wdt.0", "ick", &wdt1_ick, CK_343X),
> CLK(NULL, "gpio1_ick", &gpio1_ick, CK_343X),
> CLK(NULL, "omap_32ksync_ick", &omap_32ksync_ick, CK_343X),
> CLK(NULL, "gpt12_ick", &gpt12_ick, CK_343X),
> @@ -241,14 +241,14 @@ static struct omap_clk omap34xx_clks[] = {
> CLK(NULL, "gpio4_dbck", &gpio4_dbck, CK_343X),
> CLK(NULL, "gpio3_dbck", &gpio3_dbck, CK_343X),
> CLK(NULL, "gpio2_dbck", &gpio2_dbck, CK_343X),
> - CLK(NULL, "wdt3_fck", &wdt3_fck, CK_343X),
> + CLK("omap_wdt.2", "fck", &wdt3_fck, CK_343X),
> CLK(NULL, "per_l4_ick", &per_l4_ick, CK_343X),
> CLK(NULL, "gpio6_ick", &gpio6_ick, CK_343X),
> CLK(NULL, "gpio5_ick", &gpio5_ick, CK_343X),
> CLK(NULL, "gpio4_ick", &gpio4_ick, CK_343X),
> CLK(NULL, "gpio3_ick", &gpio3_ick, CK_343X),
> CLK(NULL, "gpio2_ick", &gpio2_ick, CK_343X),
> - CLK(NULL, "wdt3_ick", &wdt3_ick, CK_343X),
> + CLK("omap_wdt.2", "ick", &wdt3_ick, CK_343X),
> CLK(NULL, "uart3_ick", &uart3_ick, CK_343X),
> CLK(NULL, "gpt9_ick", &gpt9_ick, CK_343X),
> CLK(NULL, "gpt8_ick", &gpt8_ick, CK_343X),
> @@ -275,7 +275,7 @@ static struct omap_clk omap34xx_clks[] = {
> CLK(NULL, "sr_l4_ick", &sr_l4_ick, CK_343X),
> CLK(NULL, "secure_32k_fck", &secure_32k_fck, CK_343X),
> CLK(NULL, "gpt12_fck", &gpt12_fck, CK_343X),
> - CLK(NULL, "wdt1_fck", &wdt1_fck, CK_343X),
> + CLK("omap_wdt.0", "fck", &wdt1_fck, CK_343X),
> };
>
> /* CM_AUTOIDLE_PLL*.AUTO_* bit values */
> diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
> index a64b692..6abef3f 100644
> --- a/arch/arm/plat-omap/devices.c
> +++ b/arch/arm/plat-omap/devices.c
> @@ -288,42 +288,101 @@ static inline void omap_init_uwire(void) {}
>
> #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
>
> -static struct resource wdt_resources[] = {
> +#define OMAP44XX_WDT2_BASE 0x4a314000
> +#define OMAP34XX_WDT1_BASE 0x4830c000
> +#define OMAP34XX_WDT2_BASE 0x48314000
> +#define OMAP34XX_WDT3_BASE 0x49030000
> +#define OMAP2430_WDT_BASE 0x49016000
> +#define OMAP2420_WDT_BASE 0x48022000
> +#define OMAP16XX_WDT_BASE 0xfffeb000
> +
> +static struct resource secure_wdt_resources[] = {
> {
> - .flags = IORESOURCE_MEM,
> + .flags = IORESOURCE_MEM,
> },
> };
>
> -static struct platform_device omap_wdt_device = {
> - .name = "omap_wdt",
> - .id = -1,
> - .num_resources = ARRAY_SIZE(wdt_resources),
> - .resource = wdt_resources,
> +static struct resource mpu_wdt_resources[] = {
> + {
> + .flags = IORESOURCE_MEM,
> + },
> +};
> +
> +static struct resource iva2_wdt_resources[] = {
> + {
> + .flags = IORESOURCE_MEM,
> + },
> +};
> +
> +static struct platform_device omap_secure_wdt_device = {
> + .name = "omap_wdt",
> + .id = 0,
> + .num_resources = ARRAY_SIZE(secure_wdt_resources),
> + .resource = secure_wdt_resources,
> + .dev = {
> + .platform_data = "watchdog_secure",
> + },
> +};
> +
> +static struct platform_device omap_mpu_wdt_device = {
> + .name = "omap_wdt",
> + .id = 1,
> + .num_resources = ARRAY_SIZE(mpu_wdt_resources),
> + .resource = mpu_wdt_resources,
> + .dev = {
> + .platform_data = "watchdog",
> + },
> +};
> +
> +static struct platform_device omap_iva2_wdt_device = {
> + .name = "omap_wdt",
> + .id = 2,
> + .num_resources = ARRAY_SIZE(iva2_wdt_resources),
> + .resource = iva2_wdt_resources,
> + .dev = {
> + .platform_data = "watchdog_iva2",
> + },
> };
>
> static void omap_init_wdt(void)
> {
> if (cpu_is_omap16xx())
> - wdt_resources[0].start = 0xfffeb000;
> + mpu_wdt_resources[0].start = OMAP16XX_WDT_BASE;
> else if (cpu_is_omap2420())
> - wdt_resources[0].start = 0x48022000; /* WDT2 */
> + mpu_wdt_resources[0].start = OMAP2420_WDT_BASE;
> else if (cpu_is_omap2430())
> - wdt_resources[0].start = 0x49016000; /* WDT2 */
> - else if (cpu_is_omap343x())
> - wdt_resources[0].start = 0x48314000; /* WDT2 */
> - else if (cpu_is_omap44xx())
> - wdt_resources[0].start = 0x4a314000;
> + mpu_wdt_resources[0].start = OMAP2430_WDT_BASE;
> + else if (cpu_is_omap343x()) {
> + secure_wdt_resources[0].start = OMAP34XX_WDT1_BASE;
> + secure_wdt_resources[0].end = secure_wdt_resources[0].start
> + + 0x4f;
> + mpu_wdt_resources[0].start = OMAP34XX_WDT2_BASE;
> + iva2_wdt_resources[0].start = OMAP34XX_WDT3_BASE;
> + iva2_wdt_resources[0].end = iva2_wdt_resources[0].start + 0x4f;
> + } else if (cpu_is_omap44xx())
> + mpu_wdt_resources[0].start = OMAP44XX_WDT2_BASE;
> else
> return;
>
> - wdt_resources[0].end = wdt_resources[0].start + 0x4f;
> + mpu_wdt_resources[0].end = mpu_wdt_resources[0].start + 0x4f;
> +
> + /* MPU WDT present across omap family */
> + (void) platform_device_register(&omap_mpu_wdt_device);
>
> - (void) platform_device_register(&omap_wdt_device);
> + if (cpu_is_omap34xx()) {
> + (void) platform_device_register(&omap_iva2_wdt_device);
> + if (omap_type() == OMAP2_DEVICE_TYPE_SEC
> + || omap_type() == OMAP2_DEVICE_TYPE_EMU)
> + (void)
> + platform_device_register(&omap_secure_wdt_device);
> + }
> }
> +
> #else
> static inline void omap_init_wdt(void) {}
> #endif
>
> +
> /*-------------------------------------------------------------------------*/
>
> #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
> --
> 1.5.4.3
>
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