From 48e10548f82ea33e01ab8ed92dbcb9513463cb90 Mon Sep 17 00:00:00 2001 From: Srikanth Jampala Date: Fri, 21 Sep 2018 17:08:00 +0530 Subject: [PATCH] crypto: cavium/nitrox - added support to identify the NITROX device partname. Get the device partname based on it's capabilities like, core frequency, number of cores and revision id. Signed-off-by: Srikanth Jampala Signed-off-by: Herbert Xu --- drivers/crypto/cavium/nitrox/nitrox_csr.h | 111 +++++++++++++++++++++ drivers/crypto/cavium/nitrox/nitrox_dev.h | 17 +++- drivers/crypto/cavium/nitrox/nitrox_hal.c | 57 +++++++++++ drivers/crypto/cavium/nitrox/nitrox_hal.h | 1 + drivers/crypto/cavium/nitrox/nitrox_main.c | 20 ---- 5 files changed, 184 insertions(+), 22 deletions(-) diff --git a/drivers/crypto/cavium/nitrox/nitrox_csr.h b/drivers/crypto/cavium/nitrox/nitrox_csr.h index 9dcb7fdbe0a7..1ad27b1a87c5 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_csr.h +++ b/drivers/crypto/cavium/nitrox/nitrox_csr.h @@ -7,9 +7,16 @@ /* EMU clusters */ #define NR_CLUSTERS 4 +/* Maximum cores per cluster, + * varies based on partname + */ #define AE_CORES_PER_CLUSTER 20 #define SE_CORES_PER_CLUSTER 16 +#define AE_MAX_CORES (AE_CORES_PER_CLUSTER * NR_CLUSTERS) +#define SE_MAX_CORES (SE_CORES_PER_CLUSTER * NR_CLUSTERS) +#define ZIP_MAX_CORES 5 + /* BIST registers */ #define EMU_BIST_STATUSX(_i) (0x1402700 + ((_i) * 0x40000)) #define UCD_BIST_STATUS 0x12C0070 @@ -111,6 +118,9 @@ #define LBC_ELM_VF65_128_INT 0x120C000 #define LBC_ELM_VF65_128_INT_ENA_W1S 0x120F000 +#define RST_BOOT 0x10C1600 +#define FUS_DAT1 0x10C1408 + /* PEM registers */ #define PEM0_INT 0x1080428 @@ -1082,4 +1092,105 @@ union lbc_inval_status { } s; }; +/** + * struct rst_boot: RST Boot Register + * @jtcsrdis: when set, internal CSR access via JTAG TAP controller + * is disabled + * @jt_tst_mode: JTAG test mode + * @io_supply: I/O power supply setting based on IO_VDD_SELECT pin: + * 0x1 = 1.8V + * 0x2 = 2.5V + * 0x4 = 3.3V + * All other values are reserved + * @pnr_mul: clock multiplier + * @lboot: last boot cause mask, resets only with PLL_DC_OK + * @rboot: determines whether core 0 remains in reset after + * chip cold or warm or soft reset + * @rboot_pin: read only access to REMOTE_BOOT pin + */ +union rst_boot { + u64 value; + struct { +#if (defined(__BIG_ENDIAN_BITFIELD)) + u64 raz_63 : 1; + u64 jtcsrdis : 1; + u64 raz_59_61 : 3; + u64 jt_tst_mode : 1; + u64 raz_40_57 : 18; + u64 io_supply : 3; + u64 raz_30_36 : 7; + u64 pnr_mul : 6; + u64 raz_12_23 : 12; + u64 lboot : 10; + u64 rboot : 1; + u64 rboot_pin : 1; +#else + u64 rboot_pin : 1; + u64 rboot : 1; + u64 lboot : 10; + u64 raz_12_23 : 12; + u64 pnr_mul : 6; + u64 raz_30_36 : 7; + u64 io_supply : 3; + u64 raz_40_57 : 18; + u64 jt_tst_mode : 1; + u64 raz_59_61 : 3; + u64 jtcsrdis : 1; + u64 raz_63 : 1; +#endif + }; +}; + +/** + * struct fus_dat1: Fuse Data 1 Register + * @pll_mul: main clock PLL multiplier hardware limit + * @pll_half_dis: main clock PLL control + * @efus_lck: efuse lockdown + * @zip_info: ZIP information + * @bar2_sz_conf: when zero, BAR2 size conforms to + * PCIe specification + * @efus_ign: efuse ignore + * @nozip: ZIP disable + * @pll_alt_matrix: select alternate PLL matrix + * @pll_bwadj_denom: select CLKF denominator for + * BWADJ value + * @chip_id: chip ID + */ +union fus_dat1 { + u64 value; + struct { +#if (defined(__BIG_ENDIAN_BITFIELD)) + u64 raz_57_63 : 7; + u64 pll_mul : 3; + u64 pll_half_dis : 1; + u64 raz_43_52 : 10; + u64 efus_lck : 3; + u64 raz_26_39 : 14; + u64 zip_info : 5; + u64 bar2_sz_conf : 1; + u64 efus_ign : 1; + u64 nozip : 1; + u64 raz_11_17 : 7; + u64 pll_alt_matrix : 1; + u64 pll_bwadj_denom : 2; + u64 chip_id : 8; +#else + u64 chip_id : 8; + u64 pll_bwadj_denom : 2; + u64 pll_alt_matrix : 1; + u64 raz_11_17 : 7; + u64 nozip : 1; + u64 efus_ign : 1; + u64 bar2_sz_conf : 1; + u64 zip_info : 5; + u64 raz_26_39 : 14; + u64 efus_lck : 3; + u64 raz_43_52 : 10; + u64 pll_half_dis : 1; + u64 pll_mul : 3; + u64 raz_57_63 : 7; +#endif + }; +}; + #endif /* __NITROX_CSR_H */ diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h index 4f560cedd0aa..1059495ee541 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_dev.h +++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h @@ -5,6 +5,7 @@ #include #include #include +#include #define VERSION_LEN 32 @@ -48,15 +49,27 @@ struct nitrox_cmdq { dma_addr_t dma; }; +/** + * struct nitrox_hw - NITROX hardware information + * @partname: partname ex: CNN55xxx-xxx + * @fw_name: firmware version + * @freq: NITROX frequency + * @vendor_id: vendor ID + * @device_id: device ID + * @revision_id: revision ID + * @se_cores: number of symmetric cores + * @ae_cores: number of asymmetric cores + * @zip_cores: number of zip cores + */ struct nitrox_hw { - /* firmware version */ + char partname[IFNAMSIZ * 2]; char fw_name[VERSION_LEN]; + int freq; u16 vendor_id; u16 device_id; u8 revision_id; - /* CNN55XX cores */ u8 se_cores; u8 ae_cores; u8 zip_cores; diff --git a/drivers/crypto/cavium/nitrox/nitrox_hal.c b/drivers/crypto/cavium/nitrox/nitrox_hal.c index 2b256ba36dff..4627a1976176 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_hal.c +++ b/drivers/crypto/cavium/nitrox/nitrox_hal.c @@ -4,6 +4,8 @@ #include "nitrox_dev.h" #include "nitrox_csr.h" +#define PLL_REF_CLK 50 + /** * emu_enable_cores - Enable EMU cluster cores. * @ndev: N5 device @@ -410,3 +412,58 @@ void config_nps_core_vfcfg_mode(struct nitrox_device *ndev, enum vf_mode mode) nitrox_write_csr(ndev, NPS_CORE_GBL_VFCFG, vfcfg.value); } + +void nitrox_get_hwinfo(struct nitrox_device *ndev) +{ + union emu_fuse_map emu_fuse; + union rst_boot rst_boot; + union fus_dat1 fus_dat1; + unsigned char name[IFNAMSIZ * 2] = {}; + int i, dead_cores; + u64 offset; + + /* get core frequency */ + offset = RST_BOOT; + rst_boot.value = nitrox_read_csr(ndev, offset); + ndev->hw.freq = (rst_boot.pnr_mul + 3) * PLL_REF_CLK; + + for (i = 0; i < NR_CLUSTERS; i++) { + offset = EMU_FUSE_MAPX(i); + emu_fuse.value = nitrox_read_csr(ndev, offset); + if (emu_fuse.s.valid) { + dead_cores = hweight32(emu_fuse.s.ae_fuse); + ndev->hw.ae_cores += AE_CORES_PER_CLUSTER - dead_cores; + dead_cores = hweight16(emu_fuse.s.se_fuse); + ndev->hw.se_cores += SE_CORES_PER_CLUSTER - dead_cores; + } + } + /* find zip hardware availability */ + offset = FUS_DAT1; + fus_dat1.value = nitrox_read_csr(ndev, offset); + if (!fus_dat1.nozip) { + dead_cores = hweight8(fus_dat1.zip_info); + ndev->hw.zip_cores = ZIP_MAX_CORES - dead_cores; + } + + /* determine the partname CNN55--*/ + if (ndev->hw.ae_cores == AE_MAX_CORES) { + switch (ndev->hw.se_cores) { + case SE_MAX_CORES: + i = snprintf(name, sizeof(name), "CNN5560"); + break; + case 40: + i = snprintf(name, sizeof(name), "CNN5560s"); + break; + } + } else if (ndev->hw.ae_cores == (AE_MAX_CORES / 2)) { + i = snprintf(name, sizeof(name), "CNN5530"); + } else { + i = snprintf(name, sizeof(name), "CNN5560i"); + } + + snprintf(name + i, sizeof(name) - i, "-%3dBG676-1.%u", + ndev->hw.freq, ndev->hw.revision_id); + + /* copy partname */ + strncpy(ndev->hw.partname, name, sizeof(ndev->hw.partname)); +} diff --git a/drivers/crypto/cavium/nitrox/nitrox_hal.h b/drivers/crypto/cavium/nitrox/nitrox_hal.h index 3baef865b17c..489ee64c119e 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_hal.h +++ b/drivers/crypto/cavium/nitrox/nitrox_hal.h @@ -18,5 +18,6 @@ void invalidate_lbc(struct nitrox_device *ndev); void enable_pkt_input_ring(struct nitrox_device *ndev, int ring); void enable_pkt_solicit_port(struct nitrox_device *ndev, int port); void config_nps_core_vfcfg_mode(struct nitrox_device *ndev, enum vf_mode mode); +void nitrox_get_hwinfo(struct nitrox_device *ndev); #endif /* __NITROX_HAL_H */ diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c index 6d7a421bddb8..acce0f0b9c7a 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_main.c +++ b/drivers/crypto/cavium/nitrox/nitrox_main.c @@ -291,26 +291,6 @@ static int nitrox_bist_check(struct nitrox_device *ndev) return 0; } -static void nitrox_get_hwinfo(struct nitrox_device *ndev) -{ - union emu_fuse_map emu_fuse; - u64 offset; - int i; - - for (i = 0; i < NR_CLUSTERS; i++) { - u8 dead_cores; - - offset = EMU_FUSE_MAPX(i); - emu_fuse.value = nitrox_read_csr(ndev, offset); - if (emu_fuse.s.valid) { - dead_cores = hweight32(emu_fuse.s.ae_fuse); - ndev->hw.ae_cores += AE_CORES_PER_CLUSTER - dead_cores; - dead_cores = hweight16(emu_fuse.s.se_fuse); - ndev->hw.se_cores += SE_CORES_PER_CLUSTER - dead_cores; - } - } -} - static int nitrox_pf_hw_init(struct nitrox_device *ndev) { int err;