linux-kernel - Re: [PATCH V2 1/4] mmc: sdhci-msm: Define new Register address map

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Date:   Wed, 6 Jun 2018 09:30:20 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Vijay Viswanath <vviswana@...eaurora.org>, ulf.hansson@...aro.org,
        robh+dt@...nel.org, mark.rutland@....com
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        shawn.lin@...k-chips.com, linux-arm-msm@...r.kernel.org,
        georgi.djakov@...aro.org, devicetree@...r.kernel.org,
        asutoshd@...eaurora.org, stummala@...eaurora.org,
        venkatg@...eaurora.org, jeremymc@...hat.com,
        bjorn.andersson@...aro.org, riteshh@...eaurora.org,
        vbadigan@...eaurora.org, dianders@...gle.com,
        sayalil@...eaurora.org
Subject: Re: [PATCH V2 1/4] mmc: sdhci-msm: Define new Register address map

On 29/05/18 12:52, Vijay Viswanath wrote:
> From: Sayali Lokhande <sayalil@...eaurora.org>
> 
> For SDCC version 5.0.0, MCI registers are removed from SDCC
> interface and some registers are moved to HC.
> Define a new data structure where we can statically define
> the address offsets for the registers in different SDCC versions.
> 
> Signed-off-by: Sayali Lokhande <sayalil@...eaurora.org>
> Signed-off-by: Vijay Viswanath <vviswana@...eaurora.org>

It would be prettier to line up the '=' and use BIT() not << but nevertheless:

Acked-by: Adrian Hunter <adrian.hunter@...el.com>


> ---
>  drivers/mmc/host/sdhci-msm.c | 89 ++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 89 insertions(+)
> 
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index bb11916..4050c99 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -137,6 +137,95 @@
>  /* Timeout value to avoid infinite waiting for pwr_irq */
>  #define MSM_PWR_IRQ_TIMEOUT_MS 5000
>  
> +struct sdhci_msm_offset {
> +	u32 core_hc_mode;
> +	u32 core_mci_data_cnt;
> +	u32 core_mci_status;
> +	u32 core_mci_fifo_cnt;
> +	u32 core_mci_version;
> +	u32 core_generics;
> +	u32 core_testbus_config;
> +	u32 core_testbus_sel2_bit;
> +	u32 core_testbus_ena;
> +	u32 core_testbus_sel2;
> +	u32 core_pwrctl_status;
> +	u32 core_pwrctl_mask;
> +	u32 core_pwrctl_clear;
> +	u32 core_pwrctl_ctl;
> +	u32 core_sdcc_debug_reg;
> +	u32 core_dll_config;
> +	u32 core_dll_status;
> +	u32 core_vendor_spec;
> +	u32 core_vendor_spec_adma_err_addr0;
> +	u32 core_vendor_spec_adma_err_addr1;
> +	u32 core_vendor_spec_func2;
> +	u32 core_vendor_spec_capabilities0;
> +	u32 core_ddr_200_cfg;
> +	u32 core_vendor_spec3;
> +	u32 core_dll_config_2;
> +	u32 core_ddr_config;
> +	u32 core_ddr_config_2;
> +};
> +
> +static const struct sdhci_msm_offset sdhci_msm_v5_offset = {
> +	.core_mci_data_cnt = 0x35c,
> +	.core_mci_status = 0x324,
> +	.core_mci_fifo_cnt = 0x308,
> +	.core_mci_version = 0x318,
> +	.core_generics = 0x320,
> +	.core_testbus_config = 0x32c,
> +	.core_testbus_sel2_bit = 3,
> +	.core_testbus_ena = (1 << 31),
> +	.core_testbus_sel2 = (1 << 3),
> +	.core_pwrctl_status = 0x240,
> +	.core_pwrctl_mask = 0x244,
> +	.core_pwrctl_clear = 0x248,
> +	.core_pwrctl_ctl = 0x24c,
> +	.core_sdcc_debug_reg = 0x358,
> +	.core_dll_config = 0x200,
> +	.core_dll_status = 0x208,
> +	.core_vendor_spec = 0x20c,
> +	.core_vendor_spec_adma_err_addr0 = 0x214,
> +	.core_vendor_spec_adma_err_addr1 = 0x218,
> +	.core_vendor_spec_func2 = 0x210,
> +	.core_vendor_spec_capabilities0 = 0x21c,
> +	.core_ddr_200_cfg = 0x224,
> +	.core_vendor_spec3 = 0x250,
> +	.core_dll_config_2 = 0x254,
> +	.core_ddr_config = 0x258,
> +	.core_ddr_config_2 = 0x25c,
> +};
> +
> +static const struct sdhci_msm_offset sdhci_msm_mci_offset = {
> +	.core_hc_mode = 0x78,
> +	.core_mci_data_cnt = 0x30,
> +	.core_mci_status = 0x34,
> +	.core_mci_fifo_cnt = 0x44,
> +	.core_mci_version = 0x050,
> +	.core_generics = 0x70,
> +	.core_testbus_config = 0x0cc,
> +	.core_testbus_sel2_bit = 4,
> +	.core_testbus_ena = (1 << 3),
> +	.core_testbus_sel2 = (1 << 4),
> +	.core_pwrctl_status = 0xdc,
> +	.core_pwrctl_mask = 0xe0,
> +	.core_pwrctl_clear = 0xe4,
> +	.core_pwrctl_ctl = 0xe8,
> +	.core_sdcc_debug_reg = 0x124,
> +	.core_dll_config = 0x100,
> +	.core_dll_status = 0x108,
> +	.core_vendor_spec = 0x10c,
> +	.core_vendor_spec_adma_err_addr0 = 0x114,
> +	.core_vendor_spec_adma_err_addr1 = 0x118,
> +	.core_vendor_spec_func2 = 0x110,
> +	.core_vendor_spec_capabilities0 = 0x11c,
> +	.core_ddr_200_cfg = 0x184,
> +	.core_vendor_spec3 = 0x1b0,
> +	.core_dll_config_2 = 0x1b4,
> +	.core_ddr_config = 0x1b8,
> +	.core_ddr_config_2 = 0x1bc,
> +};
> +
>  struct sdhci_msm_host {
>  	struct platform_device *pdev;
>  	void __iomem *core_mem;	/* MSM SDCC mapped address */
>