diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
---|---|---|
committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/powerpc/sysdev/bestcomm | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/powerpc/sysdev/bestcomm')
-rw-r--r-- | arch/powerpc/sysdev/bestcomm/bestcomm.c | 2 | ||||
-rw-r--r-- | arch/powerpc/sysdev/bestcomm/gen_bd.c | 95 | ||||
-rw-r--r-- | arch/powerpc/sysdev/bestcomm/gen_bd.h | 5 | ||||
-rw-r--r-- | arch/powerpc/sysdev/bestcomm/sram.c | 2 |
4 files changed, 102 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.c b/arch/powerpc/sysdev/bestcomm/bestcomm.c index 64ec7d62936..446c9ea85b3 100644 --- a/arch/powerpc/sysdev/bestcomm/bestcomm.c +++ b/arch/powerpc/sysdev/bestcomm/bestcomm.c @@ -443,7 +443,7 @@ mpc52xx_bcom_probe(struct of_device *op, const struct of_device_id *match) /* Done ! */ printk(KERN_INFO "DMA: MPC52xx BestComm engine @%08lx ok !\n", - bcom_eng->regs_base); + (long)bcom_eng->regs_base); return 0; diff --git a/arch/powerpc/sysdev/bestcomm/gen_bd.c b/arch/powerpc/sysdev/bestcomm/gen_bd.c index 8d33eafbb3f..a3a134c35b0 100644 --- a/arch/powerpc/sysdev/bestcomm/gen_bd.c +++ b/arch/powerpc/sysdev/bestcomm/gen_bd.c @@ -20,6 +20,7 @@ #include <asm/io.h> #include <asm/mpc52xx.h> +#include <asm/mpc52xx_psc.h> #include "bestcomm.h" #include "bestcomm_priv.h" @@ -253,6 +254,100 @@ bcom_gen_bd_tx_release(struct bcom_task *tsk) } EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_release); +/* --------------------------------------------------------------------- + * PSC support code + */ + +/** + * bcom_psc_parameters - Bestcomm initialization value table for PSC devices + * + * This structure is only used internally. It is a lookup table for PSC + * specific parameters to bestcomm tasks. + */ +static struct bcom_psc_params { + int rx_initiator; + int rx_ipr; + int tx_initiator; + int tx_ipr; +} bcom_psc_params[] = { + [0] = { + .rx_initiator = BCOM_INITIATOR_PSC1_RX, + .rx_ipr = BCOM_IPR_PSC1_RX, + .tx_initiator = BCOM_INITIATOR_PSC1_TX, + .tx_ipr = BCOM_IPR_PSC1_TX, + }, + [1] = { + .rx_initiator = BCOM_INITIATOR_PSC2_RX, + .rx_ipr = BCOM_IPR_PSC2_RX, + .tx_initiator = BCOM_INITIATOR_PSC2_TX, + .tx_ipr = BCOM_IPR_PSC2_TX, + }, + [2] = { + .rx_initiator = BCOM_INITIATOR_PSC3_RX, + .rx_ipr = BCOM_IPR_PSC3_RX, + .tx_initiator = BCOM_INITIATOR_PSC3_TX, + .tx_ipr = BCOM_IPR_PSC3_TX, + }, + [3] = { + .rx_initiator = BCOM_INITIATOR_PSC4_RX, + .rx_ipr = BCOM_IPR_PSC4_RX, + .tx_initiator = BCOM_INITIATOR_PSC4_TX, + .tx_ipr = BCOM_IPR_PSC4_TX, + }, + [4] = { + .rx_initiator = BCOM_INITIATOR_PSC5_RX, + .rx_ipr = BCOM_IPR_PSC5_RX, + .tx_initiator = BCOM_INITIATOR_PSC5_TX, + .tx_ipr = BCOM_IPR_PSC5_TX, + }, + [5] = { + .rx_initiator = BCOM_INITIATOR_PSC6_RX, + .rx_ipr = BCOM_IPR_PSC6_RX, + .tx_initiator = BCOM_INITIATOR_PSC6_TX, + .tx_ipr = BCOM_IPR_PSC6_TX, + }, +}; + +/** + * bcom_psc_gen_bd_rx_init - Allocate a receive bcom_task for a PSC port + * @psc_num: Number of the PSC to allocate a task for + * @queue_len: number of buffer descriptors to allocate for the task + * @fifo: physical address of FIFO register + * @maxbufsize: Maximum receive data size in bytes. + * + * Allocate a bestcomm task structure for receiving data from a PSC. + */ +struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len, + phys_addr_t fifo, int maxbufsize) +{ + if (psc_num >= MPC52xx_PSC_MAXNUM) + return NULL; + + return bcom_gen_bd_rx_init(queue_len, fifo, + bcom_psc_params[psc_num].rx_initiator, + bcom_psc_params[psc_num].rx_ipr, + maxbufsize); +} +EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_rx_init); + +/** + * bcom_psc_gen_bd_tx_init - Allocate a transmit bcom_task for a PSC port + * @psc_num: Number of the PSC to allocate a task for + * @queue_len: number of buffer descriptors to allocate for the task + * @fifo: physical address of FIFO register + * + * Allocate a bestcomm task structure for transmitting data to a PSC. + */ +struct bcom_task * +bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len, phys_addr_t fifo) +{ + struct psc; + return bcom_gen_bd_tx_init(queue_len, fifo, + bcom_psc_params[psc_num].tx_initiator, + bcom_psc_params[psc_num].tx_ipr); +} +EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_tx_init); + MODULE_DESCRIPTION("BestComm General Buffer Descriptor tasks driver"); MODULE_AUTHOR("Jeff Gibbons <jeff.gibbons@appspec.com>"); diff --git a/arch/powerpc/sysdev/bestcomm/gen_bd.h b/arch/powerpc/sysdev/bestcomm/gen_bd.h index 5b6fa803c6a..de47260e69d 100644 --- a/arch/powerpc/sysdev/bestcomm/gen_bd.h +++ b/arch/powerpc/sysdev/bestcomm/gen_bd.h @@ -44,5 +44,10 @@ extern void bcom_gen_bd_tx_release(struct bcom_task *tsk); +/* PSC support utility wrappers */ +struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len, + phys_addr_t fifo, int maxbufsize); +struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len, + phys_addr_t fifo); #endif /* __BESTCOMM_GEN_BD_H__ */ diff --git a/arch/powerpc/sysdev/bestcomm/sram.c b/arch/powerpc/sysdev/bestcomm/sram.c index 99784383a84..5d74ef7a651 100644 --- a/arch/powerpc/sysdev/bestcomm/sram.c +++ b/arch/powerpc/sysdev/bestcomm/sram.c @@ -86,7 +86,7 @@ int bcom_sram_init(struct device_node *sram_node, char *owner) if (!bcom_sram->base_virt) { printk(KERN_ERR "%s: bcom_sram_init: " "Map error SRAM zone 0x%08lx (0x%0x)!\n", - owner, bcom_sram->base_phys, bcom_sram->size ); + owner, (long)bcom_sram->base_phys, bcom_sram->size ); rv = -ENOMEM; goto error_release; } |