/* $NetBSD: kobo_machdep.c,v 1.9 2023/04/20 08:28:05 skrll Exp $ */ /* * Copyright (c) 2002, 2003, 2005, 2010 Genetec Corporation. * All rights reserved. * Written by Hiroyuki Bessho for Genetec Corporation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * Machine dependent functions for kernel setup for RAKUTEN Kobo. * Based on iq80310_machhdep.c */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1997,1998 Mark Brinicombe. * Copyright (c) 1997,1998 Causality Limited. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Mark Brinicombe * for the NetBSD Project. * 4. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Machine dependent functions for kernel setup for Intel IQ80310 evaluation * boards using RedBoot firmware. */ #include __KERNEL_RCSID(0, "$NetBSD: kobo_machdep.c,v 1.9 2023/04/20 08:28:05 skrll Exp $"); #include "opt_evbarm_boardtype.h" #include "opt_arm_debug.h" #include "opt_console.h" #include "opt_cputypes.h" #include "opt_ddb.h" #include "opt_kgdb.h" #include "opt_md.h" #include "opt_com.h" #include "imxuart.h" #include "opt_imxuart.h" #include "opt_imx.h" #include "opt_machdep.h" #include #include #include #include #include #include #ifdef KGDB #include #endif #include #include #include #include #include #include #include #include #include /* Kernel text starts 1MB in from the bottom of the kernel address space. */ #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00100000) BootConfig bootconfig; /* Boot config storage */ static char bootargs[MAX_BOOT_STRING]; char *boot_args = NULL; extern char KERNEL_BASE_phys[]; /* filled in before cleaning bss. keep in .data */ u_int uboot_args[4] __attribute__((__section__(".data"))); /* * Macros to translate between physical and virtual for a subset of the * kernel address space. *Not* for general use. */ #define KERNEL_BASE_PHYS ((paddr_t)KERNEL_BASE_phys) void consinit(void); #ifdef KGDB void kgdb_port_init(void); #endif static void init_clocks(void); static void setup_ioports(void); #ifndef CONSPEED #define CONSPEED B115200 /* What RedBoot uses */ #endif #ifndef CONMODE #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ #endif int comcnspeed = CONSPEED; int comcnmode = CONMODE; /* * Static device mappings. These peripheral registers are mapped at * fixed virtual addresses very early in initarm() so that we can use * them while booting the kernel, and stay at the same address * throughout whole kernel's life time. * * We use this table twice; once with bootstrap page table, and once * with kernel's page table which we build up in initarm(). * * Since we map these registers into the bootstrap page table using * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map * registers segment-aligned and segment-rounded in order to avoid * using the 2nd page tables. */ const struct pmap_devmap kobo_devmap[] = { DEVMAP_ENTRY( /* for UART2, IOMUXC */ KOBO_IO_VBASE0, KOBO_IO_PBASE0, L1_S_SIZE * 4 ), DEVMAP_ENTRY_END }; #ifndef MEMSTART #define MEMSTART 0x70000000 #endif #ifndef MEMSIZE #define MEMSIZE 256 #endif static void init_clocks(void) { cortex_pmc_ccnt_init(); } struct iomux_setup { /* iomux registers are 32-bit wide, but upper 16 bits are not * used. */ uint16_t reg; uint16_t val; }; #define IOMUX_M(padname, mux) \ IOMUX_DATA(__CONCAT(IOMUXC_SW_MUX_CTL_PAD_,padname), mux) #define IOMUX_P(padname, pad) \ IOMUX_DATA(__CONCAT(IOMUXC_SW_PAD_CTL_PAD_,padname), pad) #define IOMUX_MP(padname, mux, pad) \ IOMUX_M(padname, mux), \ IOMUX_P(padname, pad) #define IOMUX_DATA(offset, value) \ { \ .reg = (offset), \ .val = (value), \ } const struct iomux_setup iomux_setup_data[] = { #define HYS PAD_CTL_HYS #define ODE PAD_CTL_ODE #define DSEHIGH PAD_CTL_DSE_HIGH #define DSEMID PAD_CTL_DSE_MID #define DSELOW PAD_CTL_DSE_LOW #define DSEMAX PAD_CTL_DSE_MAX #define SRE PAD_CTL_SRE #define KEEPER PAD_CTL_KEEPER #define PULL PAD_CTL_PULL #define PU_22K PAD_CTL_PUS_22K_PU #define PU_47K PAD_CTL_PUS_47K_PU #define PU_100K PAD_CTL_PUS_100K_PU #define PD_100K PAD_CTL_PUS_100K_PD #define HVE PAD_CTL_HVE /* Low output voltage */ #define ALT0 IOMUX_CONFIG_ALT0 #define ALT1 IOMUX_CONFIG_ALT1 #define ALT2 IOMUX_CONFIG_ALT2 #define ALT3 IOMUX_CONFIG_ALT3 #define ALT4 IOMUX_CONFIG_ALT4 #define ALT5 IOMUX_CONFIG_ALT5 #define ALT6 IOMUX_CONFIG_ALT6 #define ALT7 IOMUX_CONFIG_ALT7 #define SION IOMUX_CONFIG_SION /* I2C1 */ IOMUX_MP(I2C1_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), IOMUX_MP(I2C1_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), /* I2C2 */ IOMUX_MP(I2C2_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), IOMUX_MP(I2C2_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), /* I2C3 */ IOMUX_MP(I2C3_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), IOMUX_MP(I2C3_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH), /* UART2 */ IOMUX_MP(UART2_RXD, ALT0, HYS | PULL | DSEHIGH | SRE), IOMUX_MP(UART2_TXD, ALT0, HYS | PULL | DSEHIGH | SRE), /* SD1 */ IOMUX_MP(SD1_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD1_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD1_D0, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD1_D1, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD1_D2, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD1_D3, ALT0, HVE | PU_22K | DSEMAX | SRE), // IOMUX_MP(SD1_CD, ALT0, HVE | PU_22K | DSEMAX | SRE), /* SD2 */ IOMUX_MP(SD2_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_D0, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_D1, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_D2, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_D3, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD2_CD, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_DATA(IOMUXC_ESDHC2_IPP_CARD_DET_SELECT_INPUT, INPUT_DAISY_1), /* SD3 */ IOMUX_MP(SD3_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD3_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD3_D0, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD3_D1, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD3_D2, ALT0, HVE | PU_22K | DSEMAX | SRE), IOMUX_MP(SD3_D3, ALT0, HVE | PU_22K | DSEMAX | SRE), // IOMUX_MP(SD3_CD, ALT0, HVE | PU_22K | DSEMAX | SRE), /* OTG */ IOMUX_M(PWM2, ALT2), // IOMUX_MP(PWM1, ALT2, HYS | KEEPER | DSEHIGH), /* EPDC */ IOMUX_M(EPDC_D0, ALT0), IOMUX_M(EPDC_D1, ALT0), IOMUX_M(EPDC_D2, ALT0), IOMUX_M(EPDC_D3, ALT0), IOMUX_M(EPDC_D4, ALT0), IOMUX_M(EPDC_D5, ALT0), IOMUX_M(EPDC_D6, ALT0), IOMUX_M(EPDC_D7, ALT0), IOMUX_M(EPDC_GDCLK, ALT0), IOMUX_M(EPDC_GDSP, ALT0), IOMUX_M(EPDC_GDOE, ALT0), IOMUX_M(EPDC_GDRL, ALT0), IOMUX_M(EPDC_SDCLK, ALT0), IOMUX_M(EPDC_SDOE, ALT0), IOMUX_M(EPDC_SDLE, ALT0), IOMUX_M(EPDC_BDR0, ALT0), IOMUX_M(EPDC_BDR1, ALT0), IOMUX_M(EPDC_SDCE0, ALT0), IOMUX_M(EPDC_PWRSTAT, ALT1), /* GPIO3[28] */ IOMUX_M(EPDC_PWRCTRL0, ALT1), /* GPIO3[29] */ IOMUX_M(EPDC_VCOM0, ALT1), /* GPIO4[21] */ IOMUX_M(UART4_TXD, ALT1), /* GPIO6[16] */ IOMUX_M(UART4_RXD, ALT1), /* GPIO6[17] */ // IOMUX_M(PWM2, ALT1), /* GPIO6[25] */ #undef ODE #undef HYS #undef SRE #undef PULL #undef KEEPER #undef PU_22K #undef PU_47K #undef PU_100K #undef PD_100K #undef HVE #undef DSEMAX #undef DSEHIGH #undef DSEMID #undef DSELOW #undef ALT0 #undef ALT1 #undef ALT2 #undef ALT3 #undef ALT4 #undef ALT5 #undef ALT6 #undef ALT7 #undef SION }; static void setup_ioports(void) { int i; const struct iomux_setup *p; for (i=0; i < __arraycount(iomux_setup_data); ++i) { p = iomux_setup_data + i; ioreg_write(KOBO_IOMUXC_VBASE + p->reg, p->val); } } #ifdef CONSDEVNAME const char consdevname[] = CONSDEVNAME; #ifndef CONMODE #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ #endif #ifndef CONSPEED #define CONSPEED 115200 #endif int consmode = CONMODE; int consrate = CONSPEED; #endif /* CONSDEVNAME */ #ifndef IMXUART_FREQ #define IMXUART_FREQ 24000000 #endif /* * vaddr_t initarm(...) * * Initial entry point on startup. This gets called before main() is * entered. * It should be responsible for setting up everything that must be * in place when main is called. * This includes * Taking a copy of the boot configuration structure. * Initialising the physical console so characters can be printed. * Setting up page tables for the kernel */ vaddr_t initarm(void *arg) { /* * Heads up ... Setup the CPU / MMU / TLB functions */ if (set_cpufuncs()) // starts PMC counter panic("cpu not recognized!"); extern char ARM_BOOTSTRAP_LxPT[]; pmap_devmap_bootstrap((vaddr_t)ARM_BOOTSTRAP_LxPT, kobo_devmap); cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); setup_ioports(); consinit(); init_clocks(); #ifdef KGDB kgdb_port_init(); #endif /* Talk to the user */ printf("\nNetBSD/evbarm (" ___STRING(EVBARM_BOARDTYPE) ") booting ...\n"); #ifdef BOOT_ARGS char mi_bootargs[] = BOOT_ARGS; parse_mi_bootargs(mi_bootargs); #endif bootargs[0] = '\0'; #ifdef VERBOSE_INIT_ARM printf("initarm: Configuring system"); printf(", CLIDR=%010o CTR=%#x", armreg_clidr_read(), armreg_ctr_read()); printf("\n"); #endif #ifdef VERBOSE_INIT_ARM printf("initarm: Configuring system ...\n"); #endif /* * Set up the variables that define the availability of physical * memory. */ /* Fake bootconfig structure for the benefit of pmap.c. */ bootconfig.dramblocks = 1; bootconfig.dram[0].address = MEMSTART; bootconfig.dram[0].pages = (MEMSIZE * 1024 * 1024) / PAGE_SIZE; psize_t ram_size = bootconfig.dram[0].pages * PAGE_SIZE; #ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS const bool mapallmem_p = true; if (ram_size > (KERNEL_VM_BASE - KERNEL_BASE)) { printf("%s: dropping RAM size from %luMB to %uMB\n", __func__, (unsigned long) (ram_size >> 20), (KERNEL_VM_BASE - KERNEL_BASE) >> 20); ram_size = KERNEL_VM_BASE - KERNEL_BASE; } KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE); #else const bool mapallmem_p = false; #endif arm32_bootmem_init(bootconfig.dram[0].address, ram_size, KERNEL_BASE_PHYS); arm32_kernel_vm_init(KERNEL_VM_BASE, ARM_VECTORS_HIGH, 0, kobo_devmap, mapallmem_p); #ifdef BOOTHOWTO boothowto |= BOOTHOWTO; #endif return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0); } void consinit(void) { static int consinit_called = 0; if (consinit_called) return; consinit_called = 1; #ifdef CONSDEVNAME #if NIMXUART > 0 imxuart_set_frequency(IMXUART_FREQ, 2); #endif #if (NIMXUART > 0) && defined(IMXUARTCONSOLE) if (strcmp(consdevname, "imxuart") == 0) { paddr_t consaddr; #ifdef CONADDR consaddr = CONADDR; #else consaddr = IMX51_UART2_BASE; #endif imxuart_cnattach(&armv7_generic_bs_tag, consaddr, consrate, consmode); return; } #endif #endif #if (NWSDISPLAY > 0) && defined(IMXEPDCCONSOLE) #if NUKBD > 0 ukbd_cnattach(); #endif { extern void kobo_cnattach(void); kobo_cnattach(); } #endif } #ifdef KGDB #ifndef KGDB_DEVNAME #define KGDB_DEVNAME "imxuart" #endif #ifndef KGDB_DEVMODE #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ #endif const char kgdb_devname[20] = KGDB_DEVNAME; int kgdb_mode = KGDB_DEVMODE; int kgdb_addr = KGDB_DEVADDR; extern int kgdb_rate; /* defined in kgdb_stub.c */ void kgdb_port_init(void) { #if (NIMXUART > 0) if (strcmp(kgdb_devname, "imxuart") == 0) { imxuart_kgdb_attach(&armv7_generic_bs_tag, kgdb_addr, kgdb_rate, kgdb_mode); return; } #endif } #endif