From 3f1af81b80576bb696cc0ea2169541ee13902ce0 Mon Sep 17 00:00:00 2001 From: Liu Gang Date: Thu, 8 Mar 2012 00:33:19 +0000 Subject: powerpc/corenet_ds: Slave uploads ucode when boot from SRIO When boot from SRIO, slave's ucode can be stored in master's memory space, then slave can fetch the ucode image through SRIO interface. For the corenet platform, ucode is for Fman. Master needs to: 1. Put the slave's ucode image into it's own memory space. 2. Set an inbound SRIO window covered slave's ucode stored in master's memory space. Slave needs to: 1. Set a specific TLB entry in order to fetch ucode from master. 2. Set a LAW entry with the TargetID SRIO1 or SRIO2 for ucode. Signed-off-by: Liu Gang Signed-off-by: Shaohui Xie --- arch/powerpc/cpu/mpc8xxx/srio.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/cpu/mpc8xxx/srio.c') diff --git a/arch/powerpc/cpu/mpc8xxx/srio.c b/arch/powerpc/cpu/mpc8xxx/srio.c index 77fa32f..e593f22 100644 --- a/arch/powerpc/cpu/mpc8xxx/srio.c +++ b/arch/powerpc/cpu/mpc8xxx/srio.c @@ -100,8 +100,8 @@ void srio_boot_master(void) debug("SRIOBOOT - MASTER: Master port [ %d ] for srio boot.\n", CONFIG_SRIOBOOT_MASTER_PORT); - /* configure inbound window5 for slave's u-boot image */ - debug("SRIOBOOT - MASTER: Inbound window 5 for slave's image; " + /* configure inbound window for slave's u-boot image */ + debug("SRIOBOOT - MASTER: Inbound window for slave's image; " "Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n", (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS1, (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS1, @@ -117,8 +117,8 @@ void srio_boot_master(void) SRIO_IB_ATMU_AR | atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE)); - /* configure inbound window4 for slave's u-boot image */ - debug("SRIOBOOT - MASTER: Inbound window 4 for slave's image; " + /* configure inbound window for slave's u-boot image */ + debug("SRIOBOOT - MASTER: Inbound window for slave's image; " "Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n", (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS2, (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS2, @@ -133,5 +133,22 @@ void srio_boot_master(void) .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwar, SRIO_IB_ATMU_AR | atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE)); + + /* configure inbound window for slave's ucode */ + debug("SRIOBOOT - MASTER: Inbound window for slave's ucode; " + "Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIOBOOT_SLAVE_UCODE_LAW_PHYS, + (u64)CONFIG_SRIOBOOT_SLAVE_UCODE_SRIO_PHYS, + CONFIG_SRIOBOOT_SLAVE_UCODE_SIZE); + out_be32((void *)&srio->atmu + .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwtar, + CONFIG_SRIOBOOT_SLAVE_UCODE_LAW_PHYS >> 12); + out_be32((void *)&srio->atmu + .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwbar, + CONFIG_SRIOBOOT_SLAVE_UCODE_SRIO_PHYS >> 12); + out_be32((void *)&srio->atmu + .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwar, + SRIO_IB_ATMU_AR + | atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_UCODE_SIZE)); } #endif -- cgit v1.1