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author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
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committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/board/freescale/p2041rdb/p2041rdb.c | |
download | qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.tar.gz qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.tar.bz2 qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.zip |
Diffstat (limited to 'roms/u-boot/board/freescale/p2041rdb/p2041rdb.c')
-rw-r--r-- | roms/u-boot/board/freescale/p2041rdb/p2041rdb.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/p2041rdb/p2041rdb.c b/roms/u-boot/board/freescale/p2041rdb/p2041rdb.c new file mode 100644 index 00000000..8554512d --- /dev/null +++ b/roms/u-boot/board/freescale/p2041rdb/p2041rdb.c @@ -0,0 +1,236 @@ +/* + * Copyright 2011,2012 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <command.h> +#include <netdev.h> +#include <linux/compiler.h> +#include <asm/mmu.h> +#include <asm/processor.h> +#include <asm/cache.h> +#include <asm/immap_85xx.h> +#include <asm/fsl_law.h> +#include <asm/fsl_serdes.h> +#include <asm/fsl_portals.h> +#include <asm/fsl_liodn.h> +#include <fm_eth.h> + +extern void pci_of_setup(void *blob, bd_t *bd); + +#include "cpld.h" + +DECLARE_GLOBAL_DATA_PTR; + +int checkboard(void) +{ + u8 sw; + struct cpu_type *cpu = gd->arch.cpu; + unsigned int i; + + printf("Board: %sRDB, ", cpu->name); + printf("CPLD version: %d.%d ", CPLD_READ(cpld_ver), + CPLD_READ(cpld_ver_sub)); + + sw = CPLD_READ(fbank_sel); + printf("vBank: %d\n", sw & 0x1); + + /* + * Display the actual SERDES reference clocks as configured by the + * dip switches on the board. Note that the SWx registers could + * technically be set to force the reference clocks to match the + * values that the SERDES expects (or vice versa). For now, however, + * we just display both values and hope the user notices when they + * don't match. + */ + puts("SERDES Reference Clocks: "); + sw = in_8(&CPLD_SW(2)) >> 2; + for (i = 0; i < 2; i++) { + static const char * const freq[][3] = {{"0", "100", "125"}, + {"100", "156.25", "125"} + }; + unsigned int clock = (sw >> (2 * i)) & 3; + + printf("Bank%u=%sMhz ", i+1, freq[i][clock]); + } + puts("\n"); + + return 0; +} + +int board_early_init_f(void) +{ + ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + + /* board only uses the DDR_MCK0/1, so disable the DDR_MCK2/3 */ + setbits_be32(&gur->ddrclkdr, 0x000f000f); + + return 0; +} + +#define CPLD_LANE_A_SEL 0x1 +#define CPLD_LANE_G_SEL 0x2 +#define CPLD_LANE_C_SEL 0x4 +#define CPLD_LANE_D_SEL 0x8 + +void board_config_lanes_mux(void) +{ + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + int srds_prtcl = (in_be32(&gur->rcwsr[4]) & + FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26; + + u8 mux = 0; + switch (srds_prtcl) { + case 0x2: + case 0x5: + case 0x9: + case 0xa: + case 0xf: + break; + case 0x8: + mux |= CPLD_LANE_C_SEL | CPLD_LANE_D_SEL; + break; + case 0x14: + mux |= CPLD_LANE_A_SEL; + break; + case 0x17: + mux |= CPLD_LANE_G_SEL; + break; + case 0x16: + case 0x19: + case 0x1a: + mux |= CPLD_LANE_G_SEL | CPLD_LANE_C_SEL | CPLD_LANE_D_SEL; + break; + case 0x1c: + mux |= CPLD_LANE_G_SEL | CPLD_LANE_A_SEL; + break; + default: + printf("Fman:Unsupported SerDes Protocol 0x%02x\n", srds_prtcl); + break; + } + CPLD_WRITE(serdes_mux, mux); +} + +int board_early_init_r(void) +{ + const unsigned int flashbase = CONFIG_SYS_FLASH_BASE; + const u8 flash_esel = find_tlb_idx((void *)flashbase, 1); + + /* + * Remap Boot flash + PROMJET region to caching-inhibited + * so that flash can be erased properly. + */ + + /* Flush d-cache and invalidate i-cache of any FLASH data */ + flush_dcache(); + invalidate_icache(); + + /* invalidate existing TLB entry for flash + promjet */ + disable_tlb(flash_esel); + + set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, flash_esel, BOOKE_PAGESZ_256M, 1); + + set_liodns(); + setup_portals(); + board_config_lanes_mux(); + + return 0; +} + +unsigned long get_board_sys_clk(unsigned long dummy) +{ + u8 sysclk_conf = CPLD_READ(sysclk_sw1); + + switch (sysclk_conf & 0x7) { + case CPLD_SYSCLK_83: + return 83333333; + case CPLD_SYSCLK_100: + return 100000000; + default: + return 66666666; + } +} + +#define NUM_SRDS_BANKS 2 + +int misc_init_r(void) +{ + serdes_corenet_t *regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + u32 actual[NUM_SRDS_BANKS]; + unsigned int i; + u8 sw; + static const int freq[][3] = { + {0, SRDS_PLLCR0_RFCK_SEL_100, SRDS_PLLCR0_RFCK_SEL_125}, + {SRDS_PLLCR0_RFCK_SEL_100, SRDS_PLLCR0_RFCK_SEL_156_25, + SRDS_PLLCR0_RFCK_SEL_125} + }; + + sw = in_8(&CPLD_SW(2)) >> 2; + for (i = 0; i < NUM_SRDS_BANKS; i++) { + unsigned int clock = (sw >> (2 * i)) & 3; + if (clock == 0x3) { + printf("Warning: SDREFCLK%u switch setting of '11' is " + "unsupported\n", i + 1); + break; + } + if (i == 0 && clock == 0) + puts("Warning: SDREFCLK1 switch setting of" + "'00' is unsupported\n"); + else + actual[i] = freq[i][clock]; + + /* + * PC board uses a different CPLD with PB board, this CPLD + * has cpld_ver_sub = 1, and pcba_ver = 5. But CPLD on PB + * board has cpld_ver_sub = 0, and pcba_ver = 4. + */ + if ((i == 1) && (CPLD_READ(cpld_ver_sub) == 1) && + (CPLD_READ(pcba_ver) == 5)) { + /* PC board bank2 frequency */ + actual[i] = freq[i-1][clock]; + } + } + + for (i = 0; i < NUM_SRDS_BANKS; i++) { + u32 expected = in_be32(®s->bank[i].pllcr0); + expected &= SRDS_PLLCR0_RFCK_SEL_MASK; + if (expected != actual[i]) { + printf("Warning: SERDES bank %u expects reference clock" + " %sMHz, but actual is %sMHz\n", i + 1, + serdes_clock_to_string(expected), + serdes_clock_to_string(actual[i])); + } + } + + return 0; +} + +void ft_board_setup(void *blob, bd_t *bd) +{ + phys_addr_t base; + phys_size_t size; + + ft_cpu_setup(blob, bd); + + base = getenv_bootm_low(); + size = getenv_bootm_size(); + + fdt_fixup_memory(blob, (u64)base, (u64)size); + +#if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) + fdt_fixup_dr_usb(blob, bd); +#endif + +#ifdef CONFIG_PCI + pci_of_setup(blob, bd); +#endif + + fdt_fixup_liodn(blob); +#ifdef CONFIG_SYS_DPAA_FMAN + fdt_fixup_fman_ethernet(blob); +#endif +} |