powerpc/85xx: Add P5040 processor support

Add support for the Freescale P5040 SOC, which is similar to the P5020.
Features of the P5040 are:

Four P5040 single-threaded e5500 cores built
    Up to 2.4 GHz with 64-bit ISA support
    Three levels of instruction: user, supervisor, hypervisor
CoreNet platform cache (CPC)
    2.0 MB configures as dual 1 MB blocks hierarchical interconnect fabric
Two 64-bit DDR3/3L SDRAM memory controllers with ECC and interleaving
        support Up to 1600MT/s
    Memory pre-fetch engine
DPAA incorporating acceleration for the following functions
    Packet parsing, classification, and distribution (FMAN)
    Queue management for scheduling, packet sequencing and
    congestion management (QMAN)
    Hardware buffer management for buffer allocation and
    de-allocation (BMAN)
    Cryptography acceleration (SEC 5.2) at up to 40 Gbps SerDes
    20 lanes at up to 5 Gbps
    Supports SGMII, XAUI, PCIe rev1.1/2.0, SATA Ethernet interfaces
    Two 10 Gbps Ethernet MACs
    Ten 1 Gbps Ethernet MACs
High-speed peripheral interfaces
    Two PCI Express 2.0/3.0 controllers
Additional peripheral interfaces
    Two serial ATA (SATA 2.0) controllers
    Two high-speed USB 2.0 controllers with integrated PHY
    Enhanced secure digital host controller (SD/MMC/eMMC)
    Enhanced serial peripheral interface (eSPI)
    Two I2C controllers
    Four UARTs
    Integrated flash controller supporting NAND and NOR flash
DMA
    Dual four channel
Support for hardware virtualization and partitioning enforcement
    Extra privileged level for hypervisor support
QorIQ Trust Architecture 1.1
    Secure boot, secure debug, tamper detection, volatile key storage

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c
index 2a68060369..e6b1b1b7ee 100644
--- a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c
@@ -92,10 +92,17 @@ static const struct {
 	{ 17, 163, FSL_SRDS_BANK_2 },
 	{ 18, 164, FSL_SRDS_BANK_2 },
 	{ 19, 165, FSL_SRDS_BANK_2 },
+#ifdef CONFIG_PPC_P4080
 	{ 20, 170, FSL_SRDS_BANK_3 },
 	{ 21, 171, FSL_SRDS_BANK_3 },
 	{ 22, 172, FSL_SRDS_BANK_3 },
 	{ 23, 173, FSL_SRDS_BANK_3 },
+#else
+	{ 20, 166, FSL_SRDS_BANK_3 },
+	{ 21, 167, FSL_SRDS_BANK_3 },
+	{ 22, 168, FSL_SRDS_BANK_3 },
+	{ 23, 169, FSL_SRDS_BANK_3 },
+#endif
 };
 
 int serdes_get_lane_idx(int lane)
@@ -493,6 +500,9 @@ void fsl_serdes_init(void)
 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	int cfg;
 	serdes_corenet_t *srds_regs;
+#ifdef CONFIG_PPC_P5040
+	serdes_corenet_t *srds2_regs;
+#endif
 	int lane, bank, idx;
 	int have_bank[SRDS_MAX_BANK] = {};
 #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8
@@ -574,6 +584,34 @@ void fsl_serdes_init(void)
 		}
 	}
 
+#ifdef CONFIG_PPC_P5040
+	/*
+	 * Lanes on bank 4 on P5040 are commented-out, but for some SERDES
+	 * protocols, these lanes are routed to SATA.  We use serdes_prtcl_map
+	 * to decide whether a protocol is supported on a given lane, so SATA
+	 * will be identified as not supported, and therefore not initialized.
+	 * So for protocols which use SATA on bank4, we add SATA support in
+	 * serdes_prtcl_map.
+	 */
+	switch (cfg) {
+	case 0x0:
+	case 0x1:
+	case 0x2:
+	case 0x3:
+	case 0x4:
+	case 0x5:
+	case 0x6:
+	case 0x7:
+		serdes_prtcl_map |= 1 << SATA1 | 1 << SATA2;
+		break;
+	default:
+		srds2_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES2_ADDR;
+
+		/* We don't need bank 4, so power it down */
+		setbits_be32(&srds2_regs->bank[0].rstctl, SRDS_RSTCTL_SDPD);
+	}
+#endif
+
 	soc_serdes_init();
 
 #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8
@@ -617,6 +655,38 @@ void fsl_serdes_init(void)
 		}
 	}
 
+#ifdef CONFIG_SYS_FSL_ERRATUM_A004699
+	/*
+	 * To avoid the situation that resulted in the P4080 erratum
+	 * SERDES-8, a given SerDes bank will use the PLLs from the previous
+	 * bank if one of the PLL frequencies is a multiple of the other.  For
+	 * instance, if bank 3 is running at 2.5GHz and bank 2 is at 1.25GHz,
+	 * then bank 3 will use bank 2's PLL.  P5040 Erratum A-004699 says
+	 * that, in this situation, lane synchronization is not initiated.  So
+	 * when we detect a bank with a "borrowed" PLL, we have to manually
+	 * initiate lane synchronization.
+	 */
+	for (bank = FSL_SRDS_BANK_2; bank <= FSL_SRDS_BANK_3; bank++) {
+		/* Determine the first lane for this bank */
+		unsigned int lane;
+
+		for (lane = 0; lane < SRDS_MAX_LANES; lane++)
+			if (lanes[lane].bank == bank)
+				break;
+		idx = lanes[lane].idx;
+
+		/*
+		 * Check if the PLL for the bank is borrowed.  The UOTHL
+		 * bit of the first lane will tell us that.
+		 */
+		if (in_be32(&srds_regs->lane[idx].gcr0) & SRDS_GCR0_UOTHL) {
+			/* Manually start lane synchronization */
+			setbits_be32(&srds_regs->bank[bank].pllcr0,
+				     SRDS_PLLCR0_PVCOCNT_EN);
+		}
+	}
+#endif
+
 #if defined(CONFIG_SYS_P4080_ERRATUM_SERDES8) || defined (CONFIG_SYS_P4080_ERRATUM_SERDES9)
 	for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
 		enum srds_prtcl lane_prtcl;