Re: [PATCH v5 2/8] OMAP2430: hwmod data: Add HSMMC

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Hello Kishore,

There are several problems with this data that generate warning messages 
on boot on 2430SDP.

Did you actually test this on 2430SDP?  The warning messages would have 
been obvious in the boot log.

Comments below:

On Fri, 25 Feb 2011, Kishore Kadiyala wrote:

> From: Paul Walmsley <paul@xxxxxxxxx>
> 
> Update the omap2430 hwmod data with the HSMMC info.
> 
> Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
> Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Rajendra Nayak <rnayak@xxxxxx
> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@xxxxxx>
> Cc: Benoit Cousson <b-cousson@xxxxxx>
> ---
>  arch/arm/mach-omap2/omap_hwmod_2430_data.c |  146 ++++++++++++++++++++++++++++
>  1 files changed, 146 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> index de0015d..a1c3c5e 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> @@ -54,6 +54,8 @@ static struct omap_hwmod omap2430_dma_system_hwmod;
>  static struct omap_hwmod omap2430_mcspi1_hwmod;
>  static struct omap_hwmod omap2430_mcspi2_hwmod;
>  static struct omap_hwmod omap2430_mcspi3_hwmod;
> +static struct omap_hwmod omap2430_mmc1_hwmod;
> +static struct omap_hwmod omap2430_mmc2_hwmod;
>  
>  /* L3 -> L4_CORE interface */
>  static struct omap_hwmod_ocp_if omap2430_l3_main__l4_core = {
> @@ -250,6 +252,42 @@ static struct omap_hwmod_ocp_if *omap2430_usbhsotg_slaves[] = {
>  	&omap2430_l4_core__usbhsotg,
>  };
>  
> +/* L4 CORE -> MMC1 interface */
> +static struct omap_hwmod_addr_space omap2430_mmc1_addr_space[] = {
> +	{
> +		.pa_start	= 0x4809c000,
> +		.pa_end		= 0x4809c1ff,
> +		.flags		= ADDR_TYPE_RT,
> +	},
> +};
> +
> +static struct omap_hwmod_ocp_if omap2430_l4_core__mmc1 = {
> +	.master		= &omap2430_l4_core_hwmod,
> +	.slave		= &omap2430_mmc1_hwmod,
> +	.clk		= "mmchs1_ick",
> +	.addr		= omap2430_mmc1_addr_space,
> +	.addr_cnt	= ARRAY_SIZE(omap2430_mmc1_addr_space),
> +	.user		= OCP_USER_MPU | OCP_USER_SDMA,
> +};
> +
> +/* L4 CORE -> MMC2 interface */
> +static struct omap_hwmod_addr_space omap2430_mmc2_addr_space[] = {
> +	{
> +		.pa_start	= 0x480b4000,
> +		.pa_end		= 0x480b41ff,
> +		.flags		= ADDR_TYPE_RT,
> +	},
> +};
> +
> +static struct omap_hwmod_ocp_if omap2430_l4_core__mmc2 = {
> +	.master		= &omap2430_l4_core_hwmod,
> +	.slave		= &omap2430_mmc2_hwmod,
> +	.addr		= omap2430_mmc2_addr_space,
> +	.clk		= "mmchs2_ick",
> +	.addr_cnt	= ARRAY_SIZE(omap2430_mmc2_addr_space),
> +	.user		= OCP_USER_MPU | OCP_USER_SDMA,
> +};
> +
>  /* Slave interfaces on the L4_CORE interconnect */
>  static struct omap_hwmod_ocp_if *omap2430_l4_core_slaves[] = {
>  	&omap2430_l3_main__l4_core,
> @@ -258,6 +296,8 @@ static struct omap_hwmod_ocp_if *omap2430_l4_core_slaves[] = {
>  /* Master interfaces on the L4_CORE interconnect */
>  static struct omap_hwmod_ocp_if *omap2430_l4_core_masters[] = {
>  	&omap2430_l4_core__l4_wkup,
> +	&omap2430_l4_core__mmc1,
> +	&omap2430_l4_core__mmc2,
>  };
>  
>  /* L4 CORE */
> @@ -1508,6 +1548,110 @@ static struct omap_hwmod omap2430_usbhsotg_hwmod = {
>  
>  
>  
> +/* MMC/SD/SDIO common */
> +
> +static struct omap_hwmod_class_sysconfig omap2430_mmc_sysc = {
> +	.rev_offs	= 0x1fc,
> +	.sysc_offs	= 0x10,
> +	.syss_offs	= 0x14,
> +	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
> +			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
> +			   SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
> +	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
> +	.sysc_fields    = &omap_hwmod_sysc_type1,
> +};
> +
> +static struct omap_hwmod_class omap2430_mmc_class = {
> +	.name = "mmc",
> +	.sysc = &omap2430_mmc_sysc,
> +};
> +
> +/* MMC/SD/SDIO1 */
> +
> +static struct omap_hwmod_irq_info omap2430_mmc1_mpu_irqs[] = {
> +	{ .irq = 83 },
> +};
> +
> +static struct omap_hwmod_dma_info omap2430_mmc1_sdma_reqs[] = {
> +	{ .name = "tx",	.dma_req = 61 }, /* DMA_MMC1_TX */
> +	{ .name = "rx",	.dma_req = 62 }, /* DMA_MMC1_RX */
> +};
> +
> +static struct omap_hwmod_opt_clk omap2430_mmc1_opt_clks[] = {
> +	{ .role = "dbck", .clk = "mmchsdb_fck" },

This is not the correct name of the clock.  This generates warnings on 
boot and prevents the HSMMC block from being soft-reset.

> +};
> +
> +static struct omap_hwmod_ocp_if *omap2430_mmc1_slaves[] = {
> +	&omap2430_l4_core__mmc1,
> +};
> +
> +static struct omap_hwmod omap2430_mmc1_hwmod = {
> +	.name		= "mmc1",
> +	.mpu_irqs	= omap2430_mmc1_mpu_irqs,
> +	.mpu_irqs_cnt	= ARRAY_SIZE(omap2430_mmc1_mpu_irqs),
> +	.sdma_reqs	= omap2430_mmc1_sdma_reqs,
> +	.sdma_reqs_cnt	= ARRAY_SIZE(omap2430_mmc1_sdma_reqs),
> +	.opt_clks	= omap2430_mmc1_opt_clks,
> +	.opt_clks_cnt	= ARRAY_SIZE(omap2430_mmc1_opt_clks),
> +	.main_clk	= "mmchs1_fck",
> +	.prcm		= {
> +		.omap2 = {
> +			.module_offs = CORE_MOD,
> +			.prcm_reg_id = 2,
> +			.module_bit  = OMAP2430_EN_MMCHS1_SHIFT,
> +			.idlest_reg_id = 2,
> +			.idlest_idle_bit = OMAP2430_ST_MMCHS1_SHIFT,
> +		},
> +	},
> +	.slaves		= omap2430_mmc1_slaves,
> +	.slaves_cnt	= ARRAY_SIZE(omap2430_mmc1_slaves),
> +	.class		= &omap2430_mmc_class,
> +	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),

This needs to have HWMOD_CONTROL_OPT_CLKS_IN_RESET set in the flags, 
otherwise the softreset will not be possible.  See the OMAP2430 TRM Rev Z 
[SWPU090Z] Table 23-10 "MMCHS_SYSSTATUS", the RESETDONE bit.

> +};
> +
> +/* MMC/SD/SDIO2 */
> +
> +static struct omap_hwmod_irq_info omap2430_mmc2_mpu_irqs[] = {
> +	{ .irq = 86 },
> +};
> +
> +static struct omap_hwmod_dma_info omap2430_mmc2_sdma_reqs[] = {
> +	{ .name = "tx",	.dma_req = 47 }, /* DMA_MMC2_TX */
> +	{ .name = "rx",	.dma_req = 48 }, /* DMA_MMC2_RX */
> +};
> +
> +static struct omap_hwmod_opt_clk omap2430_mmc2_opt_clks[] = {
> +	{ .role = "dbck", .clk = "mmchsdb_fck" },

This is not the correct name of the clock.  This generates warnings on 
boot and prevents the HSMMC block from being soft-reset.

> +};
> +
> +static struct omap_hwmod_ocp_if *omap2430_mmc2_slaves[] = {
> +	&omap2430_l4_core__mmc2,
> +};
> +
> +static struct omap_hwmod omap2430_mmc2_hwmod = {
> +	.name		= "mmc2",
> +	.mpu_irqs	= omap2430_mmc2_mpu_irqs,
> +	.mpu_irqs_cnt	= ARRAY_SIZE(omap2430_mmc2_mpu_irqs),
> +	.sdma_reqs	= omap2430_mmc2_sdma_reqs,
> +	.sdma_reqs_cnt	= ARRAY_SIZE(omap2430_mmc2_sdma_reqs),
> +	.opt_clks	= omap2430_mmc2_opt_clks,
> +	.opt_clks_cnt	= ARRAY_SIZE(omap2430_mmc2_opt_clks),
> +	.main_clk	= "mmchs2_fck",
> +	.prcm		= {
> +		.omap2 = {
> +			.module_offs = CORE_MOD,
> +			.prcm_reg_id = 2,
> +			.module_bit  = OMAP2430_EN_MMCHS2_SHIFT,
> +			.idlest_reg_id = 2,
> +			.idlest_idle_bit = OMAP2430_ST_MMCHS2_SHIFT,
> +		},
> +	},
> +	.slaves		= omap2430_mmc2_slaves,
> +	.slaves_cnt	= ARRAY_SIZE(omap2430_mmc2_slaves),
> +	.class		= &omap2430_mmc_class,
> +	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),

This needs to have HWMOD_CONTROL_OPT_CLKS_IN_RESET set in the flags, 
otherwise the softreset will not be possible.  See the OMAP2430 TRM Rev Z 
[SWPU090Z] Table 23-10 "MMCHS_SYSSTATUS", the RESETDONE bit.

> +};
> +
>  static __initdata struct omap_hwmod *omap2430_hwmods[] = {
>  	&omap2430_l3_main_hwmod,
>  	&omap2430_l4_core_hwmod,
> @@ -1526,6 +1670,8 @@ static __initdata struct omap_hwmod *omap2430_hwmods[] = {
>  	/* i2c class */
>  	&omap2430_i2c1_hwmod,
>  	&omap2430_i2c2_hwmod,
> +	&omap2430_mmc1_hwmod,
> +	&omap2430_mmc2_hwmod,
>  
>  	/* gpio class */
>  	&omap2430_gpio1_hwmod,
> -- 
> 1.7.1
> 
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> 


- Paul
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