On 2016-11-08 21:40, Kiwoong Kim wrote:
> These things are defined to be used by some UFS Host controllers.
>
> Signed-off-by: Kiwoong Kim <[email protected]>
> ---
> drivers/scsi/ufs/mphy.h | 38 ++++++++++++++++++++++++++++++++++++++
> drivers/scsi/ufs/ufshci.h | 14 +++++++++++---
> drivers/scsi/ufs/unipro.h | 24 ++++++++++++++++++++++++
> 3 files changed, 73 insertions(+), 3 deletions(-) create mode 100644
> drivers/scsi/ufs/mphy.h
>
> diff --git a/drivers/scsi/ufs/mphy.h b/drivers/scsi/ufs/mphy.h new
> file mode 100644 index 0000000..c431f49
> --- /dev/null
> +++ b/drivers/scsi/ufs/mphy.h
> @@ -0,0 +1,38 @@
> +/*
> + * drivers/scsi/ufs/mphy.h
> + *
> + * Copyright (C) 2014 Samsung Electronics Co., Ltd.
> + *
> + * This program is free software; you can redistribute it and/or
> modify
> + * it under the terms of the GNU General Public License as published
> by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
> +
> +#ifndef _MPHY_H_
> +#define _MPHY_H_
Do we really need separate file for MPHY? May be we can have these
accomodated in unipro.h itself?
I think it's needed. MPHY spec isn't related with Unipro spec directly.
Yes but for UFS host controller, Unipro is the communication channel
between host and device, includes M-PHY as well.
Is there any reason why we say that this file is deprecated?
Please let me know if you have.
These are only few declarations and i guess it would be appopriate to
put them under UniPro header file. Anyways it is your choice.
> +
> +#define TX_HIBERN8TIME_CAP 0x0f
> +#define TX_MIN_ACTIVATE_TIME 0x33
> +
> +#define RX_HS_G1_SYNC_LEN_CAP 0x8b
> +#define RX_HS_G1_PREP_LEN_CAP 0x8c
> +#define RX_HS_G2_SYNC_LEN_CAP 0x94
> +#define RX_HS_G3_SYNC_LEN_CAP 0x95
> +#define RX_HS_G2_PREP_LEN_CAP 0x96
> +#define RX_HS_G3_PREP_LEN_CAP 0x97
> + #define SYNC_RANGE_FINE (0 << 6)
> + #define SYNC_RANGE_COARSE (1 << 6)
> + #define SYNC_LEN(x) ((x) & 0x3f)
> + #define PREP_LEN(x) ((x) & 0xf)
> +#define RX_ADV_GRANULARITY_CAP 0x98
> + #define RX_ADV_GRAN_STEP(x) ((((x) & 0x3) << 1) | 0x1)
> +#define TX_ADV_GRANULARITY_CAP 0x10
> + #define TX_ADV_GRAN_STEP(x) ((((x) & 0x3) << 1) | 0x1)
> +#define RX_MIN_ACTIVATETIME_CAP 0x8f
> +#define RX_HIBERN8TIME_CAP 0x92
> +#define RX_ADV_HIBERN8TIME_CAP 0x99
> +#define RX_ADV_MIN_ACTIVATETIME_CAP 0x9a
> +
> +#endif /* _MPHY_H_ */
> +
> diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
> index 9599741..26dc340 100644
> --- a/drivers/scsi/ufs/ufshci.h
> +++ b/drivers/scsi/ufs/ufshci.h
> @@ -170,17 +170,25 @@ enum {
> /* UECDL - Host UIC Error Code Data Link Layer 3Ch */
> #define UIC_DATA_LINK_LAYER_ERROR UFS_BIT(31)
> #define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK 0x7FFF
> -#define UIC_DATA_LINK_LAYER_ERROR_PA_INIT 0x2000
> -#define UIC_DATA_LINK_LAYER_ERROR_NAC_RECEIVED 0x0001
> -#define UIC_DATA_LINK_LAYER_ERROR_TCx_REPLAY_TIMEOUT 0x0002
> +#define UIC_DATA_LINK_LAYER_ERROR_NAC_RECEIVED UFS_BIT(0)
> +#define UIC_DATA_LINK_LAYER_ERROR_TCx_REPLAY_TIMEOUT UFS_BIT(1)
> +#define UIC_DATA_LINK_LAYER_ERROR_RX_BUF_OF UFS_BIT(5)
why don't we just add macros for all the bits in UECDL ? This makes it
easy in future.
Okay. I'll think about it and apply new macros on new version of this
patch.
> +#define UIC_DATA_LINK_LAYER_ERROR_PA_INIT UFS_BIT(13)
>
> /* UECN - Host UIC Error Code Network Layer 40h */
> #define UIC_NETWORK_LAYER_ERROR UFS_BIT(31)
> #define UIC_NETWORK_LAYER_ERROR_CODE_MASK 0x7
> +#define UIC_NETWORK_UNSUPPORTED_HEADER_TYPE BIT(0)
> +#define UIC_NETWORK_BAD_DEVICEID_ENC BIT(1)
> +#define UIC_NETWORK_LHDR_TRAP_PACKET_DROPPING BIT(2)
>
> /* UECT - Host UIC Error Code Transport Layer 44h */
> #define UIC_TRANSPORT_LAYER_ERROR UFS_BIT(31)
> #define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK 0x7F
> +#define UIC_TRANSPORT_UNSUPPORTED_HEADER_TYPE BIT(0)
> +#define UIC_TRANSPORT_UNKNOWN_CPORTID BIT(1)
> +#define UIC_TRANSPORT_NO_CONNECTION_RX BIT(2)
> +#define UIC_TRANSPORT_BAD_TC BIT(4)
May be add definition for bit-5 and 6 as well.
Okay. I'll add those things on new version of this patch.
>
> /* UECDME - Host UIC Error Code DME 48h */
> #define UIC_DME_ERROR UFS_BIT(31)
> diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
> index eff8b56..e47e2c2 100644
> --- a/drivers/scsi/ufs/unipro.h
> +++ b/drivers/scsi/ufs/unipro.h
> @@ -127,6 +127,7 @@
> #define PA_PACPREQEOBTIMEOUT 0x1591
> #define PA_HIBERN8TIME 0x15A7
> #define PA_LOCALVERINFO 0x15A9
> +#define PA_GRANULARITY 0x15AA
> #define PA_TACTIVATE 0x15A8
> #define PA_PACPFRAMECOUNT 0x15C0
> #define PA_PACPERRORCOUNT 0x15C1
> @@ -170,6 +171,9 @@ enum {
> UNCHANGED = 7,
> };
>
> +#define IS_PWR_MODE_HS(m) (((m) == FAST_MODE) || ((m) ==
> FASTAUTO_MODE))
s/IS_PWR_MODE_HS/IS_HS_PWR_MODE ?
> +#define IS_PWR_MODE_PWM(m) (((m) == SLOW_MODE) || ((m) ==
> SLOWAUTO_MODE))
s/IS_PWR_MODE_PWM/IS_PWM_PWR_MODE ?
> +
> /* PA TX/RX Frequency Series */
> enum {
> PA_HS_MODE_A = 1,
> @@ -231,6 +235,11 @@ enum ufs_unipro_ver {
> #define DL_PEERTC1PRESENT 0x2066
> #define DL_PEERTC1RXINITCREVAL 0x2067
>
> +/* Default value of L2 Timer */
> +#define FC0PROTTIMEOUTVAL 8191
> +#define TC0REPLAYTIMEOUTVAL 65535
> +#define AFC0REQTIMEOUTVAL 32767
> +
> /*
> * Network Layer Attributes
> */
> @@ -259,6 +268,21 @@ enum ufs_unipro_ver {
> #define T_TC0TXMAXSDUSIZE 0x4060
> #define T_TC1TXMAXSDUSIZE 0x4061
>
> +/* CPort setting */
> +#define E2EFC_ON (1 << 0)
> +#define E2EFC_OFF (0 << 0)
> +#define CSD_N_ON (0 << 1)
> +#define CSD_N_OFF (1 << 1)
> +#define CSV_N_ON (0 << 2)
> +#define CSV_N_OFF (1 << 2)
Can you please specify where these are coming from? Spec number and
section/line number?
These definitions are associated with Unipro attributes 0x4025, that is
T_CPortFlags.
I referred version 1.6 - 6 August 2013.
You can find details in Chapter 8.17 and Table 92 in the spec
Thanks.
Can you please prefix those macro names with Attribute name? For ex:
T_CPORTFLAGS_E2EFC_ON ? It makes it more readable.
> +#define CPORT_DEF_FLAGS (CSV_N_OFF | CSD_N_OFF | E2EFC_OFF)
> +
> +/* CPort connection state */
> +enum {
> + CPORT_IDLE = 0,
> + CPORT_CONNECTED,
> +};
> +
> #ifdef FALSE
> #undef FALSE
> #endif
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