Mate Kukri | e231949 | 2020-07-04 11:20:07 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <device/mmio.h> |
| 4 | #include <console/console.h> |
| 5 | #include <cpu/x86/tsc.h> |
| 6 | #include <device/pci.h> |
| 7 | #include <delay.h> |
| 8 | #include <soc/pci_devs.h> |
| 9 | #include <soc/lpc.h> |
| 10 | #include <soc/iosf.h> |
| 11 | #include <soc/iomap.h> |
| 12 | #include <soc/ramstage.h> |
| 13 | #include <soc/modphy_table.h> |
| 14 | |
| 15 | #define IOSF_READ(op_read, port) \ |
| 16 | (IOSF_OPCODE(op_read) | IOSF_PORT(port)) |
| 17 | #define IOSF_WRITE(op_write, port) \ |
| 18 | (IOSF_OPCODE(op_write) | IOSF_PORT(port)) |
| 19 | |
| 20 | static void program_modphy_table(struct modphy_entry *table) |
| 21 | { |
| 22 | u32 tmp; |
| 23 | |
| 24 | for (; table->port; ++table) { |
| 25 | tmp = iosf_read_port(IOSF_READ(table->op_read, table->port), table->reg); |
| 26 | iosf_write_port(IOSF_WRITE(table->op_write, table->port), table->reg, |
| 27 | (tmp & table->mask) | table->value); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | static void gpio_sc_sdcard_workaround(void) |
| 32 | { |
| 33 | setbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 0)); |
| 34 | setbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 2)); |
| 35 | clrbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 1)); |
| 36 | clrbits32((char *) IO_BASE_ADDRESS + 0x690, (1 << 3)); |
| 37 | udelay(100); |
| 38 | clrbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 0)); |
| 39 | udelay(100); |
| 40 | write32((char *) IO_BASE_ADDRESS + 0x830, 0x78480); |
| 41 | udelay(40); |
| 42 | write32((char *) IO_BASE_ADDRESS + 0x830, 0x78080); |
| 43 | setbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 0)); |
| 44 | udelay(100); |
| 45 | setbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 1)); |
| 46 | clrbits32((char *) IO_BASE_ADDRESS + 0x698, (1 << 2)); |
| 47 | clrsetbits32((char *) IO_BASE_ADDRESS + 0x690, 7, (1 << 0)); |
| 48 | } |
| 49 | |
| 50 | #define BUNIT_BALIMIT0 0x0b |
| 51 | #define AUNIT_AVCCTL 0x21 |
| 52 | #define AUNIT_ACFCACV 0x60 |
| 53 | #define CUNIT_ACCESS_CTRL_VIOL 0x41 |
| 54 | #define CUINT_SSA_REGIONAL_TRUNKGATE_CTL 0x43 |
| 55 | #define TUNIT_CTL 0x03 |
| 56 | #define TUNIT_MISC_CTL 0x04 |
| 57 | |
| 58 | static void ssa_safe_config(void) |
| 59 | { |
| 60 | u32 tmp; |
| 61 | |
| 62 | tmp = iosf_bunit_read(BUNIT_BALIMIT0); |
| 63 | iosf_bunit_write(BUNIT_BALIMIT0, (tmp & 0xC0D0D0D0) | 0x1F2F2F2F); |
| 64 | |
| 65 | tmp = iosf_aunit_read(AUNIT_AVCCTL); |
| 66 | iosf_aunit_write(AUNIT_AVCCTL, tmp | 0x80000100); |
| 67 | |
| 68 | tmp = iosf_aunit_read(AUNIT_ACFCACV); |
| 69 | iosf_aunit_write(AUNIT_ACFCACV, tmp & 0x7FFFFFFF); |
| 70 | |
| 71 | tmp = iosf_cunit_read(CUNIT_ACCESS_CTRL_VIOL); |
| 72 | iosf_cunit_write(CUNIT_ACCESS_CTRL_VIOL, tmp & 0x7FFFFFFF); |
| 73 | |
| 74 | iosf_cunit_write(CUINT_SSA_REGIONAL_TRUNKGATE_CTL, 0x70008); |
| 75 | |
| 76 | tmp = iosf_cpu_bus_read(TUNIT_CTL); |
| 77 | iosf_cpu_bus_write(TUNIT_CTL, tmp | 0x110430); |
| 78 | |
| 79 | tmp = iosf_cpu_bus_read(TUNIT_MISC_CTL); |
| 80 | iosf_cpu_bus_write(TUNIT_MISC_CTL, tmp | 0x40010); |
| 81 | } |
| 82 | |
| 83 | #define R_PCH_PMC_MTPMC1 0xb0 |
| 84 | |
| 85 | /* |
| 86 | * Replacement for refcode.elf |
| 87 | */ |
| 88 | void baytrail_run_reference_code(void) |
| 89 | { |
| 90 | u32 tmp; |
| 91 | size_t pollcnt; |
| 92 | |
| 93 | printk(BIOS_DEBUG, "ModPHY init entry\n"); |
| 94 | |
| 95 | if (pci_read_config8(pcidev_on_root(LPC_DEV, LPC_FUNC), REVID) < RID_B_STEPPING_START) { |
| 96 | printk(BIOS_DEBUG, "SOC A0/A1 ModPhy Table programming\n"); |
| 97 | program_modphy_table(reva0_modphy_table); |
| 98 | } else { |
| 99 | printk(BIOS_DEBUG, "SOC B0 and later ModPhy Table programming\n"); |
| 100 | program_modphy_table(revb0_modphy_table); |
| 101 | } |
| 102 | |
| 103 | setbits32((char *) PMC_BASE_ADDRESS + R_PCH_PMC_MTPMC1, 8); |
| 104 | |
| 105 | for (pollcnt = 0; pollcnt < 10; ++pollcnt) { |
| 106 | tmp = read32((char *) PMC_BASE_ADDRESS + R_PCH_PMC_MTPMC1); |
| 107 | printk(BIOS_DEBUG, "Polling bit3 of R_PCH_PMC_MTPMC1 = %x\n", tmp); |
| 108 | if (!(tmp & 8)) |
| 109 | break; |
| 110 | } |
| 111 | |
| 112 | gpio_sc_sdcard_workaround(); |
| 113 | ssa_safe_config(); |
| 114 | |
| 115 | printk(BIOS_DEBUG, "ModPHY init done\n"); |
| 116 | } |