From a0bbe77fafbc7e5eb41fbf3dc5cdb3608d8778a3 Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Thu, 8 Aug 2024 09:11:00 +0200 Subject: dt-bindings: soc: fsl: cpm_qe: Add QUICC Engine (QE) TSA controller Add support for the time slot assigner (TSA) available in some PowerQUICC SoC that uses a QUICC Engine (QE) block such as MPC8321. This QE TSA is similar to the CPM TSA except that it uses UCCs (Unified Communication Controllers) instead of SCCs (Serial Communication Controllers). Also, compared against the CPM TSA, this QE TSA can handle up to 4 TDMs instead of 2 and allows to configure the logic level of sync signals. Signed-off-by: Herve Codina Reviewed-by: Rob Herring (Arm) Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20240808071132.149251-8-herve.codina@bootlin.com Signed-off-by: Christophe Leroy --- include/dt-bindings/soc/qe-fsl,tsa.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 include/dt-bindings/soc/qe-fsl,tsa.h (limited to 'include') diff --git a/include/dt-bindings/soc/qe-fsl,tsa.h b/include/dt-bindings/soc/qe-fsl,tsa.h new file mode 100644 index 000000000000..3cf3df9c0968 --- /dev/null +++ b/include/dt-bindings/soc/qe-fsl,tsa.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */ + +#ifndef __DT_BINDINGS_SOC_FSL_QE_TSA_H +#define __DT_BINDINGS_SOC_FSL_QE_TSA_H + +#define FSL_QE_TSA_NU 0 +#define FSL_QE_TSA_UCC1 1 +#define FSL_QE_TSA_UCC2 2 +#define FSL_QE_TSA_UCC3 3 +#define FSL_QE_TSA_UCC4 4 +#define FSL_QE_TSA_UCC5 5 + +#endif -- cgit v1.2.3 From c6f39c7c165fce8fe1a41327da02dcca0a3cac25 Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Thu, 8 Aug 2024 09:11:25 +0200 Subject: soc: fsl: qe: Add resource-managed muram allocators Introduce devm_cpm_muram_alloc() and devm_cpm_muram_alloc_fixed(), the resource-managed version of cpm_muram_alloc and cpm_muram_alloc_fixed(). These resource-managed versions simplify the user avoiding the need to call cpm_muram_free(). Indeed, the allocated area returned by these functions will be automatically freed on driver detach. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20240808071132.149251-33-herve.codina@bootlin.com Signed-off-by: Christophe Leroy --- drivers/soc/fsl/qe/qe_common.c | 80 ++++++++++++++++++++++++++++++++++++++++++ include/soc/fsl/qe/qe.h | 22 +++++++++++- 2 files changed, 101 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c index a877347d37d3..02c29f5f86d3 100644 --- a/drivers/soc/fsl/qe/qe_common.c +++ b/drivers/soc/fsl/qe/qe_common.c @@ -13,6 +13,7 @@ * 2006 (c) MontaVista Software, Inc. * Vitaly Bordug */ +#include #include #include #include @@ -187,6 +188,49 @@ void cpm_muram_free(s32 offset) } EXPORT_SYMBOL(cpm_muram_free); +static void devm_cpm_muram_release(struct device *dev, void *res) +{ + s32 *info = res; + + cpm_muram_free(*info); +} + +/** + * devm_cpm_muram_alloc - Resource-managed cpm_muram_alloc + * @dev: Device to allocate memory for + * @size: number of bytes to allocate + * @align: requested alignment, in bytes + * + * This function returns a non-negative offset into the muram area, or + * a negative errno on failure as cpm_muram_alloc() does. + * Use cpm_muram_addr() to get the virtual address of the area. + * + * Compare against cpm_muram_alloc(), the memory allocated by this + * resource-managed version is automatically freed on driver detach and so, + * cpm_muram_free() must not be called to release the allocated memory. + */ +s32 devm_cpm_muram_alloc(struct device *dev, unsigned long size, + unsigned long align) +{ + s32 info; + s32 *dr; + + dr = devres_alloc(devm_cpm_muram_release, sizeof(*dr), GFP_KERNEL); + if (!dr) + return -ENOMEM; + + info = cpm_muram_alloc(size, align); + if (info >= 0) { + *dr = info; + devres_add(dev, dr); + } else { + devres_free(dr); + } + + return info; +} +EXPORT_SYMBOL(devm_cpm_muram_alloc); + /* * cpm_muram_alloc_fixed - reserve a specific region of multi-user ram * @offset: offset of allocation start address @@ -211,6 +255,42 @@ s32 cpm_muram_alloc_fixed(unsigned long offset, unsigned long size) } EXPORT_SYMBOL(cpm_muram_alloc_fixed); +/** + * devm_cpm_muram_alloc_fixed - Resource-managed cpm_muram_alloc_fixed + * @dev: Device to allocate memory for + * @offset: offset of allocation start address + * @size: number of bytes to allocate + * + * This function returns a non-negative offset into the muram area, or + * a negative errno on failure as cpm_muram_alloc_fixed() does. + * Use cpm_muram_addr() to get the virtual address of the area. + * + * Compare against cpm_muram_alloc_fixed(), the memory allocated by this + * resource-managed version is automatically freed on driver detach and so, + * cpm_muram_free() must not be called to release the allocated memory. + */ +s32 devm_cpm_muram_alloc_fixed(struct device *dev, unsigned long offset, + unsigned long size) +{ + s32 info; + s32 *dr; + + dr = devres_alloc(devm_cpm_muram_release, sizeof(*dr), GFP_KERNEL); + if (!dr) + return -ENOMEM; + + info = cpm_muram_alloc_fixed(offset, size); + if (info >= 0) { + *dr = info; + devres_add(dev, dr); + } else { + devres_free(dr); + } + + return info; +} +EXPORT_SYMBOL(devm_cpm_muram_alloc_fixed); + /** * cpm_muram_addr - turn a muram offset into a virtual address * @offset: muram offset to convert diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h index af793f2a0ec4..629835b6c71d 100644 --- a/include/soc/fsl/qe/qe.h +++ b/include/soc/fsl/qe/qe.h @@ -23,6 +23,8 @@ #include #include +struct device; + #define QE_NUM_OF_SNUM 256 /* There are 256 serial number in QE */ #define QE_NUM_OF_BRGS 16 #define QE_NUM_OF_PORTS 1024 @@ -93,8 +95,12 @@ int cpm_muram_init(void); #if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) s32 cpm_muram_alloc(unsigned long size, unsigned long align); +s32 devm_cpm_muram_alloc(struct device *dev, unsigned long size, + unsigned long align); void cpm_muram_free(s32 offset); s32 cpm_muram_alloc_fixed(unsigned long offset, unsigned long size); +s32 devm_cpm_muram_alloc_fixed(struct device *dev, unsigned long offset, + unsigned long size); void __iomem *cpm_muram_addr(unsigned long offset); unsigned long cpm_muram_offset(const void __iomem *addr); dma_addr_t cpm_muram_dma(void __iomem *addr); @@ -106,6 +112,12 @@ static inline s32 cpm_muram_alloc(unsigned long size, return -ENOSYS; } +static inline s32 devm_cpm_muram_alloc(struct device *dev, unsigned long size, + unsigned long align) +{ + return -ENOSYS; +} + static inline void cpm_muram_free(s32 offset) { } @@ -116,6 +128,13 @@ static inline s32 cpm_muram_alloc_fixed(unsigned long offset, return -ENOSYS; } +static inline s32 devm_cpm_muram_alloc_fixed(struct device *dev, + unsigned long offset, + unsigned long size) +{ + return -ENOSYS; +} + static inline void __iomem *cpm_muram_addr(unsigned long offset) { return NULL; @@ -172,7 +191,6 @@ static inline int par_io_data_set(u8 port, u8 pin, u8 val) { return -ENOSYS; } /* * Pin multiplexing functions. */ -struct device; struct qe_pin; #ifdef CONFIG_QE_GPIO extern struct qe_pin *qe_pin_request(struct device *dev, int index); @@ -233,7 +251,9 @@ static inline int qe_alive_during_sleep(void) /* we actually use cpm_muram implementation, define this for convenience */ #define qe_muram_init cpm_muram_init #define qe_muram_alloc cpm_muram_alloc +#define devm_qe_muram_alloc devm_cpm_muram_alloc #define qe_muram_alloc_fixed cpm_muram_alloc_fixed +#define devm_qe_muram_alloc_fixed devm_cpm_muram_alloc_fixed #define qe_muram_free cpm_muram_free #define qe_muram_addr cpm_muram_addr #define qe_muram_offset cpm_muram_offset -- cgit v1.2.3 From f68cd02d51a65594341168f03f7962e9d9540726 Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Thu, 8 Aug 2024 09:11:26 +0200 Subject: soc: fsl: qe: Add missing PUSHSCHED command The PUSHSCHED command is missing in the QE header file. This command is supported on MPC8321 and is used to modify the start address for the task running on a given peripheral. It is needed for the QMC in order to perform the re-initialization procedure and so, ensure the correct UCC setup in that case. Simply add the missing command in the commands list available in the QE header file. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20240808071132.149251-34-herve.codina@bootlin.com Signed-off-by: Christophe Leroy --- include/soc/fsl/qe/qe.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h index 629835b6c71d..8f967d15e479 100644 --- a/include/soc/fsl/qe/qe.h +++ b/include/soc/fsl/qe/qe.h @@ -469,6 +469,7 @@ enum comm_dir { #define QE_QMC_STOP_TX 0x0000000c #define QE_QMC_STOP_RX 0x0000000d #define QE_SS7_SU_FIL_RESET 0x0000000e +#define QE_PUSHSCHED 0x0000000f /* jonathbr added from here down for 83xx */ #define QE_RESET_BCS 0x0000000a #define QE_MCC_INIT_TX_RX_16 0x00000003 -- cgit v1.2.3