diff options
| -rw-r--r-- | README | 1 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/Makefile | 9 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/config.mk | 16 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/cpu.c | 136 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/jz4740.c | 235 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/jz_serial.c | 118 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/start.S | 179 | ||||
| -rw-r--r-- | arch/mips/cpu/xburst/timer.c | 149 |
8 files changed, 0 insertions, 843 deletions
@@ -164,7 +164,6 @@ Directory Hierarchy: /mips Files generic to MIPS architecture /cpu CPU specific files /mips32 Files specific to MIPS32 CPUs - /xburst Files specific to Ingenic XBurst CPUs /lib Architecture specific library files /nds32 Files generic to NDS32 architecture /cpu CPU specific files diff --git a/arch/mips/cpu/xburst/Makefile b/arch/mips/cpu/xburst/Makefile deleted file mode 100644 index 57714d0..0000000 --- a/arch/mips/cpu/xburst/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Copyright (C) 2011 Xiangfu Liu <xiangfu@openmobilefree.net> -# -# SPDX-License-Identifier: GPL-2.0+ -# - -extra-y = start.o -obj-y = cpu.o timer.o jz_serial.o -obj-$(CONFIG_JZ4740) += jz4740.o diff --git a/arch/mips/cpu/xburst/config.mk b/arch/mips/cpu/xburst/config.mk deleted file mode 100644 index b8e53e5..0000000 --- a/arch/mips/cpu/xburst/config.mk +++ /dev/null @@ -1,16 +0,0 @@ -# -# Copyright (C) 2011 Xiangfu Liu <xiangfu@openmobilefree.net> -# -# SPDX-License-Identifier: GPL-2.0+ -# - -PLATFORM_CPPFLAGS += -march=mips32 -PLATFORM_CPPFLAGS += -mabi=32 -DCONFIG_32BIT -ifdef CONFIG_SYS_BIG_ENDIAN -PLATFORM_LDFLAGS += -m elf32btsmip -else -PLATFORM_LDFLAGS += -m elf32ltsmip -endif - -CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 \ - -T $(srctree)/examples/standalone/mips.lds diff --git a/arch/mips/cpu/xburst/cpu.c b/arch/mips/cpu/xburst/cpu.c deleted file mode 100644 index 1fdaa32..0000000 --- a/arch/mips/cpu/xburst/cpu.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> - * (C) Copyright 2011 - * Xiangfu Liu <xiangfu@openmobilefree.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <netdev.h> -#include <asm/mipsregs.h> -#include <asm/cacheops.h> -#include <asm/reboot.h> -#include <asm/io.h> -#include <asm/jz4740.h> - -#define cache_op(op, addr) \ - __asm__ __volatile__( \ - ".set push\n" \ - ".set noreorder\n" \ - ".set mips3\n" \ - "cache %0, %1\n" \ - ".set pop\n" \ - : \ - : "i" (op), "R" (*(unsigned char *)(addr))) - -void __attribute__((weak)) _machine_restart(void) -{ - struct jz4740_wdt *wdt = (struct jz4740_wdt *)JZ4740_WDT_BASE; - struct jz4740_tcu *tcu = (struct jz4740_tcu *)JZ4740_TCU_BASE; - u16 tmp; - - /* wdt_select_extalclk() */ - tmp = readw(&wdt->tcsr); - tmp &= ~(WDT_TCSR_EXT_EN | WDT_TCSR_RTC_EN | WDT_TCSR_PCK_EN); - tmp |= WDT_TCSR_EXT_EN; - writew(tmp, &wdt->tcsr); - - /* wdt_select_clk_div64() */ - tmp = readw(&wdt->tcsr); - tmp &= ~WDT_TCSR_PRESCALE_MASK; - tmp |= WDT_TCSR_PRESCALE64, - writew(tmp, &wdt->tcsr); - - writew(100, &wdt->tdr); /* wdt_set_data(100) */ - writew(0, &wdt->tcnt); /* wdt_set_count(0); */ - writel(TCU_TSSR_WDTSC, &tcu->tscr); /* tcu_start_wdt_clock */ - writeb(readb(&wdt->tcer) | WDT_TCER_TCEN, &wdt->tcer); /* wdt start */ - - while (1) - ; -} - -int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - _machine_restart(); - - fprintf(stderr, "*** reset failed ***\n"); - return 0; -} - -void flush_cache(ulong start_addr, ulong size) -{ - unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE; - unsigned long addr = start_addr & ~(lsize - 1); - unsigned long aend = (start_addr + size - 1) & ~(lsize - 1); - - for (; addr <= aend; addr += lsize) { - cache_op(HIT_WRITEBACK_INV_D, addr); - cache_op(HIT_INVALIDATE_I, addr); - } -} - -void flush_dcache_range(ulong start_addr, ulong stop) -{ - unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE; - unsigned long addr = start_addr & ~(lsize - 1); - unsigned long aend = (stop - 1) & ~(lsize - 1); - - for (; addr <= aend; addr += lsize) - cache_op(HIT_WRITEBACK_INV_D, addr); -} - -void invalidate_dcache_range(ulong start_addr, ulong stop) -{ - unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE; - unsigned long addr = start_addr & ~(lsize - 1); - unsigned long aend = (stop - 1) & ~(lsize - 1); - - for (; addr <= aend; addr += lsize) - cache_op(HIT_INVALIDATE_D, addr); -} - -void flush_icache_all(void) -{ - u32 addr, t = 0; - - __asm__ __volatile__("mtc0 $0, $28"); /* Clear Taglo */ - __asm__ __volatile__("mtc0 $0, $29"); /* Clear TagHi */ - - for (addr = CKSEG0; addr < CKSEG0 + CONFIG_SYS_ICACHE_SIZE; - addr += CONFIG_SYS_CACHELINE_SIZE) { - cache_op(INDEX_STORE_TAG_I, addr); - } - - /* invalidate btb */ - __asm__ __volatile__( - ".set mips32\n\t" - "mfc0 %0, $16, 7\n\t" - "nop\n\t" - "ori %0,2\n\t" - "mtc0 %0, $16, 7\n\t" - ".set mips2\n\t" - : - : "r" (t)); -} - -void flush_dcache_all(void) -{ - u32 addr; - - for (addr = CKSEG0; addr < CKSEG0 + CONFIG_SYS_DCACHE_SIZE; - addr += CONFIG_SYS_CACHELINE_SIZE) { - cache_op(INDEX_WRITEBACK_INV_D, addr); - } - - __asm__ __volatile__("sync"); -} - -void flush_cache_all(void) -{ - flush_dcache_all(); - flush_icache_all(); -} diff --git a/arch/mips/cpu/xburst/jz4740.c b/arch/mips/cpu/xburst/jz4740.c deleted file mode 100644 index 30f35bd..0000000 --- a/arch/mips/cpu/xburst/jz4740.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * Jz4740 common routines - * Copyright (c) 2006 Ingenic Semiconductor, <jlwei@ingenic.cn> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <common.h> -#include <asm/io.h> -#include <asm/jz4740.h> - -void enable_interrupts(void) -{ -} - -int disable_interrupts(void) -{ - return 0; -} - -/* - * PLL output clock = EXTAL * NF / (NR * NO) - * NF = FD + 2, NR = RD + 2 - * NO = 1 (if OD = 0), NO = 2 (if OD = 1 or 2), NO = 4 (if OD = 3) - */ -void pll_init(void) -{ - struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE; - - register unsigned int cfcr, plcr1; - int n2FR[33] = { - 0, 0, 1, 2, 3, 0, 4, 0, 5, 0, 0, 0, 6, 0, 0, 0, - 7, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, - 9 - }; - int div[5] = {1, 3, 3, 3, 3}; /* divisors of I:S:P:L:M */ - int nf, pllout2; - - cfcr = CPM_CPCCR_CLKOEN | - CPM_CPCCR_PCS | - (n2FR[div[0]] << CPM_CPCCR_CDIV_BIT) | - (n2FR[div[1]] << CPM_CPCCR_HDIV_BIT) | - (n2FR[div[2]] << CPM_CPCCR_PDIV_BIT) | - (n2FR[div[3]] << CPM_CPCCR_MDIV_BIT) | - (n2FR[div[4]] << CPM_CPCCR_LDIV_BIT); - - pllout2 = (cfcr & CPM_CPCCR_PCS) ? - CONFIG_SYS_CPU_SPEED : (CONFIG_SYS_CPU_SPEED / 2); - - /* Init USB Host clock, pllout2 must be n*48MHz */ - writel(pllout2 / 48000000 - 1, &cpm->uhccdr); - - nf = CONFIG_SYS_CPU_SPEED * 2 / CONFIG_SYS_EXTAL; - plcr1 = ((nf - 2) << CPM_CPPCR_PLLM_BIT) | /* FD */ - (0 << CPM_CPPCR_PLLN_BIT) | /* RD=0, NR=2 */ - (0 << CPM_CPPCR_PLLOD_BIT) | /* OD=0, NO=1 */ - (0x20 << CPM_CPPCR_PLLST_BIT) | /* PLL stable time */ - CPM_CPPCR_PLLEN; /* enable PLL */ - - /* init PLL */ - writel(cfcr, &cpm->cpccr); - writel(plcr1, &cpm->cppcr); -} - -void sdram_init(void) -{ - struct jz4740_emc *emc = (struct jz4740_emc *)JZ4740_EMC_BASE; - - register unsigned int dmcr0, dmcr, sdmode, tmp, cpu_clk, mem_clk, ns; - - unsigned int cas_latency_sdmr[2] = { - EMC_SDMR_CAS_2, - EMC_SDMR_CAS_3, - }; - - unsigned int cas_latency_dmcr[2] = { - 1 << EMC_DMCR_TCL_BIT, /* CAS latency is 2 */ - 2 << EMC_DMCR_TCL_BIT /* CAS latency is 3 */ - }; - - int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}; - - cpu_clk = CONFIG_SYS_CPU_SPEED; - mem_clk = cpu_clk * div[__cpm_get_cdiv()] / div[__cpm_get_mdiv()]; - - writel(0, &emc->bcr); /* Disable bus release */ - writew(0, &emc->rtcsr); /* Disable clock for counting */ - - /* Fault DMCR value for mode register setting*/ -#define SDRAM_ROW0 11 -#define SDRAM_COL0 8 -#define SDRAM_BANK40 0 - - dmcr0 = ((SDRAM_ROW0 - 11) << EMC_DMCR_RA_BIT) | - ((SDRAM_COL0 - 8) << EMC_DMCR_CA_BIT) | - (SDRAM_BANK40 << EMC_DMCR_BA_BIT) | - (SDRAM_BW16 << EMC_DMCR_BW_BIT) | - EMC_DMCR_EPIN | - cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)]; - - /* Basic DMCR value */ - dmcr = ((SDRAM_ROW - 11) << EMC_DMCR_RA_BIT) | - ((SDRAM_COL - 8) << EMC_DMCR_CA_BIT) | - (SDRAM_BANK4 << EMC_DMCR_BA_BIT) | - (SDRAM_BW16 << EMC_DMCR_BW_BIT) | - EMC_DMCR_EPIN | - cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)]; - - /* SDRAM timimg */ - ns = 1000000000 / mem_clk; - tmp = SDRAM_TRAS / ns; - if (tmp < 4) - tmp = 4; - if (tmp > 11) - tmp = 11; - dmcr |= (tmp - 4) << EMC_DMCR_TRAS_BIT; - tmp = SDRAM_RCD / ns; - - if (tmp > 3) - tmp = 3; - dmcr |= tmp << EMC_DMCR_RCD_BIT; - tmp = SDRAM_TPC / ns; - - if (tmp > 7) - tmp = 7; - dmcr |= tmp << EMC_DMCR_TPC_BIT; - tmp = SDRAM_TRWL / ns; - - if (tmp > 3) - tmp = 3; - dmcr |= tmp << EMC_DMCR_TRWL_BIT; - tmp = (SDRAM_TRAS + SDRAM_TPC) / ns; - - if (tmp > 14) - tmp = 14; - dmcr |= ((tmp + 1) >> 1) << EMC_DMCR_TRC_BIT; - - /* SDRAM mode value */ - sdmode = EMC_SDMR_BT_SEQ | - EMC_SDMR_OM_NORMAL | - EMC_SDMR_BL_4 | - cas_latency_sdmr[((SDRAM_CASL == 3) ? 1 : 0)]; - - /* Stage 1. Precharge all banks by writing SDMR with DMCR.MRSET=0 */ - writel(dmcr, &emc->dmcr); - writeb(0, JZ4740_EMC_SDMR0 | sdmode); - - /* Wait for precharge, > 200us */ - tmp = (cpu_clk / 1000000) * 1000; - while (tmp--) - ; - - /* Stage 2. Enable auto-refresh */ - writel(dmcr | EMC_DMCR_RFSH, &emc->dmcr); - - tmp = SDRAM_TREF / ns; - tmp = tmp / 64 + 1; - if (tmp > 0xff) - tmp = 0xff; - writew(tmp, &emc->rtcor); - writew(0, &emc->rtcnt); - /* Divisor is 64, CKO/64 */ - writew(EMC_RTCSR_CKS_64, &emc->rtcsr); - - /* Wait for number of auto-refresh cycles */ - tmp = (cpu_clk / 1000000) * 1000; - while (tmp--) - ; - - /* Stage 3. Mode Register Set */ - writel(dmcr0 | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr); - writeb(0, JZ4740_EMC_SDMR0 | sdmode); - - /* Set back to basic DMCR value */ - writel(dmcr | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr); - - /* everything is ok now */ -} - -DECLARE_GLOBAL_DATA_PTR; - -void calc_clocks(void) -{ - unsigned int pllout; - unsigned int div[10] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}; - - pllout = __cpm_get_pllout(); - - gd->cpu_clk = pllout / div[__cpm_get_cdiv()]; - gd->arch.sys_clk = pllout / div[__cpm_get_hdiv()]; - gd->arch.per_clk = pllout / div[__cpm_get_pdiv()]; - gd->mem_clk = pllout / div[__cpm_get_mdiv()]; - gd->arch.dev_clk = CONFIG_SYS_EXTAL; -} - -void rtc_init(void) -{ - struct jz4740_rtc *rtc = (struct jz4740_rtc *)JZ4740_RTC_BASE; - - while (!(readl(&rtc->rcr) & RTC_RCR_WRDY)) - ; - writel(readl(&rtc->rcr) | RTC_RCR_AE, &rtc->rcr); /* enable alarm */ - - while (!(readl(&rtc->rcr) & RTC_RCR_WRDY)) - ; - writel(0x00007fff, &rtc->rgr); /* type value */ - - while (!(readl(&rtc->rcr) & RTC_RCR_WRDY)) - ; - writel(0x0000ffe0, &rtc->hwfcr); /* Power on delay 2s */ - - while (!(readl(&rtc->rcr) & RTC_RCR_WRDY)) - ; - writel(0x00000fe0, &rtc->hrcr); /* reset delay 125ms */ -} - -/* U-Boot common routines */ -phys_size_t initdram(int board_type) -{ - struct jz4740_emc *emc = (struct jz4740_emc *)JZ4740_EMC_BASE; - u32 dmcr; - u32 rows, cols, dw, banks; - ulong size; - - dmcr = readl(&emc->dmcr); - rows = 11 + ((dmcr & EMC_DMCR_RA_MASK) >> EMC_DMCR_RA_BIT); - cols = 8 + ((dmcr & EMC_DMCR_CA_MASK) >> EMC_DMCR_CA_BIT); - dw = (dmcr & EMC_DMCR_BW) ? 2 : 4; - banks = (dmcr & EMC_DMCR_BA) ? 4 : 2; - - size = (1 << (rows + cols)) * dw * banks; - - return size; -} diff --git a/arch/mips/cpu/xburst/jz_serial.c b/arch/mips/cpu/xburst/jz_serial.c deleted file mode 100644 index 9184223..0000000 --- a/arch/mips/cpu/xburst/jz_serial.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Jz4740 UART support - * Copyright (c) 2011 - * Qi Hardware, Xiangfu Liu <xiangfu@sharism.cc> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <common.h> -#include <asm/io.h> -#include <asm/jz4740.h> -#include <serial.h> -#include <linux/compiler.h> - -/* - * serial_init - initialize a channel - * - * This routine initializes the number of data bits, parity - * and set the selected baud rate. Interrupts are disabled. - * Set the modem control signals if the option is selected. - * - * RETURNS: N/A - */ -struct jz4740_uart *uart = (struct jz4740_uart *)CONFIG_SYS_UART_BASE; - -static int jz_serial_init(void) -{ - /* Disable port interrupts while changing hardware */ - writeb(0, &uart->dlhr_ier); - - /* Disable UART unit function */ - writeb(~UART_FCR_UUE, &uart->iir_fcr); - - /* Set both receiver and transmitter in UART mode (not SIR) */ - writeb(~(SIRCR_RSIRE | SIRCR_TSIRE), &uart->isr); - - /* - * Set databits, stopbits and parity. - * (8-bit data, 1 stopbit, no parity) - */ - writeb(UART_LCR_WLEN_8 | UART_LCR_STOP_1, &uart->lcr); - - /* Set baud rate */ - serial_setbrg(); - - /* Enable UART unit, enable and clear FIFO */ - writeb(UART_FCR_UUE | UART_FCR_FE | UART_FCR_TFLS | UART_FCR_RFLS, - &uart->iir_fcr); - - return 0; -} - -static void jz_serial_setbrg(void) -{ - u32 baud_div, tmp; - - baud_div = CONFIG_SYS_EXTAL / 16 / CONFIG_BAUDRATE; - - tmp = readb(&uart->lcr); - tmp |= UART_LCR_DLAB; - writeb(tmp, &uart->lcr); - - writeb((baud_div >> 8) & 0xff, &uart->dlhr_ier); - writeb(baud_div & 0xff, &uart->rbr_thr_dllr); - - tmp &= ~UART_LCR_DLAB; - writeb(tmp, &uart->lcr); -} - -static int jz_serial_tstc(void) -{ - if (readb(&uart->lsr) & UART_LSR_DR) - return 1; - - return 0; -} - -static void jz_serial_putc(const char c) -{ - if (c == '\n') - serial_putc('\r'); - - /* Wait for fifo to shift out some bytes */ - while (!((readb(&uart->lsr) & (UART_LSR_TDRQ | UART_LSR_TEMT)) == 0x60)) - ; - - writeb((u8)c, &uart->rbr_thr_dllr); -} - -static int jz_serial_getc(void) -{ - while (!serial_tstc()) - ; - - return readb(&uart->rbr_thr_dllr); -} - -static struct serial_device jz_serial_drv = { - .name = "jz_serial", - .start = jz_serial_init, - .stop = NULL, - .setbrg = jz_serial_setbrg, - .putc = jz_serial_putc, - .puts = default_serial_puts, - .getc = jz_serial_getc, - .tstc = jz_serial_tstc, -}; - -void jz_serial_initialize(void) -{ - serial_register(&jz_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ - return &jz_serial_drv; -} diff --git a/arch/mips/cpu/xburst/start.S b/arch/mips/cpu/xburst/start.S deleted file mode 100644 index 10dffb4..0000000 --- a/arch/mips/cpu/xburst/start.S +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Startup Code for MIPS32 XBURST CPU-core - * - * Copyright (c) 2010 Xiangfu Liu <xiangfu@sharism.cc> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <version.h> -#include <asm/regdef.h> -#include <asm/mipsregs.h> -#include <asm/addrspace.h> -#include <asm/cacheops.h> - - .set noreorder - - .globl _start - .text -_start: - /* Initialize $gp */ - bal 1f - nop - .word _gp -1: - lw gp, 0(ra) - - /* Set up temporary stack */ - li sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET - - la t9, board_init_f - jr t9 - nop - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - * a0 = addr_sp - * a1 = gd - * a2 = destination address - */ - .globl relocate_code - .ent relocate_code -relocate_code: - move sp, a0 # set new stack pointer - - move s0, a1 # save gd in s0 - move s2, a2 # save destination address in s2 - - li t0, CONFIG_SYS_MONITOR_BASE - sub s1, s2, t0 # s1 <-- relocation offset - - la t3, in_ram - lw t2, -12(t3) # t2 <-- __image_copy_end - move t1, a2 - - add gp, s1 # adjust gp - - /* - * t0 = source address - * t1 = target address - * t2 = source end address - */ -1: - lw t3, 0(t0) - sw t3, 0(t1) - addu t0, 4 - blt t0, t2, 1b - addu t1, 4 - - /* If caches were enabled, we would have to flush them here. */ - - /* flush d-cache */ - li t0, KSEG0 - addi t1, t0, CONFIG_SYS_DCACHE_SIZE -2: - cache INDEX_WRITEBACK_INV_D, 0(t0) - bne t0, t1, 2b - addi t0, CONFIG_SYS_CACHELINE_SIZE - - sync - - /* flush i-cache */ - li t0, KSEG0 - addi t1, t0, CONFIG_SYS_ICACHE_SIZE -3: - cache INDEX_INVALIDATE_I, 0(t0) - bne t0, t1, 3b - addi t0, CONFIG_SYS_CACHELINE_SIZE - - /* Invalidate BTB */ - mfc0 t0, CP0_CONFIG, 7 - nop - ori t0, 2 - mtc0 t0, CP0_CONFIG, 7 - nop - - /* Jump to where we've relocated ourselves */ - addi t0, s2, in_ram - _start - jr t0 - nop - - .word __rel_dyn_end - .word __rel_dyn_start - .word __image_copy_end - .word _GLOBAL_OFFSET_TABLE_ - .word num_got_entries - -in_ram: - /* - * Now we want to update GOT. - * - * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object - * generated by GNU ld. Skip these reserved entries from relocation. - */ - lw t3, -4(t0) # t3 <-- num_got_entries - lw t8, -8(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_ - add t8, s1 # t8 now holds relocated _G_O_T_ - addi t8, t8, 8 # skipping first two entries - li t2, 2 -1: - lw t1, 0(t8) - beqz t1, 2f - add t1, s1 - sw t1, 0(t8) -2: - addi t2, 1 - blt t2, t3, 1b - addi t8, 4 - - /* Update dynamic relocations */ - lw t1, -16(t0) # t1 <-- __rel_dyn_start - lw t2, -20(t0) # t2 <-- __rel_dyn_end - - b 2f # skip first reserved entry - addi t1, 8 - -1: - lw t8, -4(t1) # t8 <-- relocation info - - li t3, 3 - bne t8, t3, 2f # skip non R_MIPS_REL32 entries - nop - - lw t3, -8(t1) # t3 <-- location to fix up in FLASH - - lw t8, 0(t3) # t8 <-- original pointer - add t8, s1 # t8 <-- adjusted pointer - - add t3, s1 # t3 <-- location to fix up in RAM - sw t8, 0(t3) - -2: - blt t1, t2, 1b - addi t1, 8 # each rel.dyn entry is 8 bytes - - /* - * Clear BSS - * - * GOT is now relocated. Thus __bss_start and __bss_end can be - * accessed directly via $gp. - */ - la t1, __bss_start # t1 <-- __bss_start - la t2, __bss_end # t2 <-- __bss_end - -1: - sw zero, 0(t1) - blt t1, t2, 1b - addi t1, 4 - - move a0, s0 # a0 <-- gd - la t9, board_init_r - jr t9 - move a1, s2 - - .end relocate_code diff --git a/arch/mips/cpu/xburst/timer.c b/arch/mips/cpu/xburst/timer.c deleted file mode 100644 index 79f34f0..0000000 --- a/arch/mips/cpu/xburst/timer.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Copyright (c) 2006 - * Ingenic Semiconductor, <jlwei@ingenic.cn> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <common.h> -#include <asm/io.h> - -#include <asm/jz4740.h> - -#define TIMER_CHAN 0 -#define TIMER_FDATA 0xffff /* Timer full data value */ - -DECLARE_GLOBAL_DATA_PTR; - -static struct jz4740_tcu *tcu = (struct jz4740_tcu *)JZ4740_TCU_BASE; - -void reset_timer_masked(void) -{ - /* reset time */ - gd->arch.lastinc = readl(&tcu->tcnt0); - gd->arch.tbl = 0; -} - -ulong get_timer_masked(void) -{ - ulong now = readl(&tcu->tcnt0); - - if (gd->arch.lastinc <= now) - gd->arch.tbl += now - gd->arch.lastinc; /* normal mode */ - else { - /* we have an overflow ... */ - gd->arch.tbl += TIMER_FDATA + now - gd->arch.lastinc; - } - - gd->arch.lastinc = now; - - return gd->arch.tbl; -} - -void udelay_masked(unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - /* normalize */ - if (usec >= 1000) { - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 1000; - } else { - if (usec > 1) { - tmo = usec * CONFIG_SYS_HZ; - tmo /= 1000*1000; - } else - tmo = 1; - } - - endtime = get_timer_masked() + tmo; - - do { - ulong now = get_timer_masked(); - diff = endtime - now; - } while (diff >= 0); -} - -int timer_init(void) -{ - writel(TCU_TCSR_PRESCALE256 | TCU_TCSR_EXT_EN, &tcu->tcsr0); - - writel(0, &tcu->tcnt0); - writel(0, &tcu->tdhr0); - writel(TIMER_FDATA, &tcu->tdfr0); - - /* mask irqs */ - writel((1 << TIMER_CHAN) | (1 << (TIMER_CHAN + 16)), &tcu->tmsr); - writel(1 << TIMER_CHAN, &tcu->tscr); /* enable timer clock */ - writeb(1 << TIMER_CHAN, &tcu->tesr); /* start counting up */ - - gd->arch.lastinc = 0; - gd->arch.tbl = 0; - - return 0; -} - -void reset_timer(void) -{ - reset_timer_masked(); -} - -ulong get_timer(ulong base) -{ - return get_timer_masked() - base; -} - -void set_timer(ulong t) -{ - gd->arch.tbl = t; -} - -void __udelay(unsigned long usec) -{ - ulong tmo, tmp; - - /* normalize */ - if (usec >= 1000) { - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 1000; - } else { - if (usec >= 1) { - tmo = usec * CONFIG_SYS_HZ; - tmo /= 1000 * 1000; - } else - tmo = 1; - } - - /* check for rollover during this delay */ - tmp = get_timer(0); - if ((tmp + tmo) < tmp) - reset_timer_masked(); /* timer would roll over */ - else - tmo += tmp; - - while (get_timer_masked() < tmo) - ; -} - -/* - * This function is derived from PowerPC code (read timebase as long long). - * On MIPS it just returns the timer value. - */ -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -/* - * This function is derived from PowerPC code (timebase clock frequency). - * On MIPS it returns the number of timer ticks per second. - */ -ulong get_tbclk(void) -{ - return CONFIG_SYS_HZ; -} |