From 7980822342834dcc77d3cb8ea0dfd2b2d42e90a5 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 8 Jan 2021 17:12:10 +0000 Subject: hw/ppc: Delete unused ppc405cr_init() code The function ppc405cr_init() has apparently been unused since it was added in commit 8ecc7913525ecb in 2007. Remove this dead code, so we don't have to convert it away from using ppcuic_init(). Signed-off-by: Peter Maydell Message-Id: <20210108171212.16500-3-peter.maydell@linaro.org> Signed-off-by: David Gibson --- hw/ppc/ppc405_uc.c | 345 ----------------------------------------------------- 1 file changed, 345 deletions(-) (limited to 'hw/ppc/ppc405_uc.c') diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c index 381720aced..3e191ae4af 100644 --- a/hw/ppc/ppc405_uc.c +++ b/hw/ppc/ppc405_uc.c @@ -1155,351 +1155,6 @@ static void ppc4xx_gpt_init(hwaddr base, qemu_irq irqs[5]) qemu_register_reset(ppc4xx_gpt_reset, gpt); } -/*****************************************************************************/ -/* PowerPC 405CR */ -enum { - PPC405CR_CPC0_PLLMR = 0x0B0, - PPC405CR_CPC0_CR0 = 0x0B1, - PPC405CR_CPC0_CR1 = 0x0B2, - PPC405CR_CPC0_PSR = 0x0B4, - PPC405CR_CPC0_JTAGID = 0x0B5, - PPC405CR_CPC0_ER = 0x0B9, - PPC405CR_CPC0_FR = 0x0BA, - PPC405CR_CPC0_SR = 0x0BB, -}; - -enum { - PPC405CR_CPU_CLK = 0, - PPC405CR_TMR_CLK = 1, - PPC405CR_PLB_CLK = 2, - PPC405CR_SDRAM_CLK = 3, - PPC405CR_OPB_CLK = 4, - PPC405CR_EXT_CLK = 5, - PPC405CR_UART_CLK = 6, - PPC405CR_CLK_NB = 7, -}; - -typedef struct ppc405cr_cpc_t ppc405cr_cpc_t; -struct ppc405cr_cpc_t { - clk_setup_t clk_setup[PPC405CR_CLK_NB]; - uint32_t sysclk; - uint32_t psr; - uint32_t cr0; - uint32_t cr1; - uint32_t jtagid; - uint32_t pllmr; - uint32_t er; - uint32_t fr; -}; - -static void ppc405cr_clk_setup (ppc405cr_cpc_t *cpc) -{ - uint64_t VCO_out, PLL_out; - uint32_t CPU_clk, TMR_clk, SDRAM_clk, PLB_clk, OPB_clk, EXT_clk, UART_clk; - int M, D0, D1, D2; - - D0 = ((cpc->pllmr >> 26) & 0x3) + 1; /* CBDV */ - if (cpc->pllmr & 0x80000000) { - D1 = (((cpc->pllmr >> 20) - 1) & 0xF) + 1; /* FBDV */ - D2 = 8 - ((cpc->pllmr >> 16) & 0x7); /* FWDVA */ - M = D0 * D1 * D2; - VCO_out = (uint64_t)cpc->sysclk * M; - if (VCO_out < 400000000 || VCO_out > 800000000) { - /* PLL cannot lock */ - cpc->pllmr &= ~0x80000000; - goto bypass_pll; - } - PLL_out = VCO_out / D2; - } else { - /* Bypass PLL */ - bypass_pll: - M = D0; - PLL_out = (uint64_t)cpc->sysclk * M; - } - CPU_clk = PLL_out; - if (cpc->cr1 & 0x00800000) - TMR_clk = cpc->sysclk; /* Should have a separate clock */ - else - TMR_clk = CPU_clk; - PLB_clk = CPU_clk / D0; - SDRAM_clk = PLB_clk; - D0 = ((cpc->pllmr >> 10) & 0x3) + 1; - OPB_clk = PLB_clk / D0; - D0 = ((cpc->pllmr >> 24) & 0x3) + 2; - EXT_clk = PLB_clk / D0; - D0 = ((cpc->cr0 >> 1) & 0x1F) + 1; - UART_clk = CPU_clk / D0; - /* Setup CPU clocks */ - clk_setup(&cpc->clk_setup[PPC405CR_CPU_CLK], CPU_clk); - /* Setup time-base clock */ - clk_setup(&cpc->clk_setup[PPC405CR_TMR_CLK], TMR_clk); - /* Setup PLB clock */ - clk_setup(&cpc->clk_setup[PPC405CR_PLB_CLK], PLB_clk); - /* Setup SDRAM clock */ - clk_setup(&cpc->clk_setup[PPC405CR_SDRAM_CLK], SDRAM_clk); - /* Setup OPB clock */ - clk_setup(&cpc->clk_setup[PPC405CR_OPB_CLK], OPB_clk); - /* Setup external clock */ - clk_setup(&cpc->clk_setup[PPC405CR_EXT_CLK], EXT_clk); - /* Setup UART clock */ - clk_setup(&cpc->clk_setup[PPC405CR_UART_CLK], UART_clk); -} - -static uint32_t dcr_read_crcpc (void *opaque, int dcrn) -{ - ppc405cr_cpc_t *cpc; - uint32_t ret; - - cpc = opaque; - switch (dcrn) { - case PPC405CR_CPC0_PLLMR: - ret = cpc->pllmr; - break; - case PPC405CR_CPC0_CR0: - ret = cpc->cr0; - break; - case PPC405CR_CPC0_CR1: - ret = cpc->cr1; - break; - case PPC405CR_CPC0_PSR: - ret = cpc->psr; - break; - case PPC405CR_CPC0_JTAGID: - ret = cpc->jtagid; - break; - case PPC405CR_CPC0_ER: - ret = cpc->er; - break; - case PPC405CR_CPC0_FR: - ret = cpc->fr; - break; - case PPC405CR_CPC0_SR: - ret = ~(cpc->er | cpc->fr) & 0xFFFF0000; - break; - default: - /* Avoid gcc warning */ - ret = 0; - break; - } - - return ret; -} - -static void dcr_write_crcpc (void *opaque, int dcrn, uint32_t val) -{ - ppc405cr_cpc_t *cpc; - - cpc = opaque; - switch (dcrn) { - case PPC405CR_CPC0_PLLMR: - cpc->pllmr = val & 0xFFF77C3F; - break; - case PPC405CR_CPC0_CR0: - cpc->cr0 = val & 0x0FFFFFFE; - break; - case PPC405CR_CPC0_CR1: - cpc->cr1 = val & 0x00800000; - break; - case PPC405CR_CPC0_PSR: - /* Read-only */ - break; - case PPC405CR_CPC0_JTAGID: - /* Read-only */ - break; - case PPC405CR_CPC0_ER: - cpc->er = val & 0xBFFC0000; - break; - case PPC405CR_CPC0_FR: - cpc->fr = val & 0xBFFC0000; - break; - case PPC405CR_CPC0_SR: - /* Read-only */ - break; - } -} - -static void ppc405cr_cpc_reset (void *opaque) -{ - ppc405cr_cpc_t *cpc; - int D; - - cpc = opaque; - /* Compute PLLMR value from PSR settings */ - cpc->pllmr = 0x80000000; - /* PFWD */ - switch ((cpc->psr >> 30) & 3) { - case 0: - /* Bypass */ - cpc->pllmr &= ~0x80000000; - break; - case 1: - /* Divide by 3 */ - cpc->pllmr |= 5 << 16; - break; - case 2: - /* Divide by 4 */ - cpc->pllmr |= 4 << 16; - break; - case 3: - /* Divide by 6 */ - cpc->pllmr |= 2 << 16; - break; - } - /* PFBD */ - D = (cpc->psr >> 28) & 3; - cpc->pllmr |= (D + 1) << 20; - /* PT */ - D = (cpc->psr >> 25) & 7; - switch (D) { - case 0x2: - cpc->pllmr |= 0x13; - break; - case 0x4: - cpc->pllmr |= 0x15; - break; - case 0x5: - cpc->pllmr |= 0x16; - break; - default: - break; - } - /* PDC */ - D = (cpc->psr >> 23) & 3; - cpc->pllmr |= D << 26; - /* ODP */ - D = (cpc->psr >> 21) & 3; - cpc->pllmr |= D << 10; - /* EBPD */ - D = (cpc->psr >> 17) & 3; - cpc->pllmr |= D << 24; - cpc->cr0 = 0x0000003C; - cpc->cr1 = 0x2B0D8800; - cpc->er = 0x00000000; - cpc->fr = 0x00000000; - ppc405cr_clk_setup(cpc); -} - -static void ppc405cr_clk_init (ppc405cr_cpc_t *cpc) -{ - int D; - - /* XXX: this should be read from IO pins */ - cpc->psr = 0x00000000; /* 8 bits ROM */ - /* PFWD */ - D = 0x2; /* Divide by 4 */ - cpc->psr |= D << 30; - /* PFBD */ - D = 0x1; /* Divide by 2 */ - cpc->psr |= D << 28; - /* PDC */ - D = 0x1; /* Divide by 2 */ - cpc->psr |= D << 23; - /* PT */ - D = 0x5; /* M = 16 */ - cpc->psr |= D << 25; - /* ODP */ - D = 0x1; /* Divide by 2 */ - cpc->psr |= D << 21; - /* EBDP */ - D = 0x2; /* Divide by 4 */ - cpc->psr |= D << 17; -} - -static void ppc405cr_cpc_init (CPUPPCState *env, clk_setup_t clk_setup[7], - uint32_t sysclk) -{ - ppc405cr_cpc_t *cpc; - - cpc = g_malloc0(sizeof(ppc405cr_cpc_t)); - memcpy(cpc->clk_setup, clk_setup, - PPC405CR_CLK_NB * sizeof(clk_setup_t)); - cpc->sysclk = sysclk; - cpc->jtagid = 0x42051049; - ppc_dcr_register(env, PPC405CR_CPC0_PSR, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_CR0, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_CR1, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_JTAGID, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_PLLMR, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_ER, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_FR, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc_dcr_register(env, PPC405CR_CPC0_SR, cpc, - &dcr_read_crcpc, &dcr_write_crcpc); - ppc405cr_clk_init(cpc); - qemu_register_reset(ppc405cr_cpc_reset, cpc); -} - -CPUPPCState *ppc405cr_init(MemoryRegion *address_space_mem, - MemoryRegion ram_memories[4], - hwaddr ram_bases[4], - hwaddr ram_sizes[4], - uint32_t sysclk, qemu_irq **picp, - int do_init) -{ - clk_setup_t clk_setup[PPC405CR_CLK_NB]; - qemu_irq dma_irqs[4]; - PowerPCCPU *cpu; - CPUPPCState *env; - qemu_irq *pic, *irqs; - - memset(clk_setup, 0, sizeof(clk_setup)); - cpu = ppc4xx_init(POWERPC_CPU_TYPE_NAME("405crc"), - &clk_setup[PPC405CR_CPU_CLK], - &clk_setup[PPC405CR_TMR_CLK], sysclk); - env = &cpu->env; - /* Memory mapped devices registers */ - /* PLB arbitrer */ - ppc4xx_plb_init(env); - /* PLB to OPB bridge */ - ppc4xx_pob_init(env); - /* OBP arbitrer */ - ppc4xx_opba_init(0xef600600); - /* Universal interrupt controller */ - irqs = g_new0(qemu_irq, PPCUIC_OUTPUT_NB); - irqs[PPCUIC_OUTPUT_INT] = - ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]; - irqs[PPCUIC_OUTPUT_CINT] = - ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]; - pic = ppcuic_init(env, irqs, 0x0C0, 0, 1); - *picp = pic; - /* SDRAM controller */ - ppc4xx_sdram_init(env, pic[14], 1, ram_memories, - ram_bases, ram_sizes, do_init); - /* External bus controller */ - ppc405_ebc_init(env); - /* DMA controller */ - dma_irqs[0] = pic[26]; - dma_irqs[1] = pic[25]; - dma_irqs[2] = pic[24]; - dma_irqs[3] = pic[23]; - ppc405_dma_init(env, dma_irqs); - /* Serial ports */ - if (serial_hd(0) != NULL) { - serial_mm_init(address_space_mem, 0xef600300, 0, pic[0], - PPC_SERIAL_MM_BAUDBASE, serial_hd(0), - DEVICE_BIG_ENDIAN); - } - if (serial_hd(1) != NULL) { - serial_mm_init(address_space_mem, 0xef600400, 0, pic[1], - PPC_SERIAL_MM_BAUDBASE, serial_hd(1), - DEVICE_BIG_ENDIAN); - } - /* IIC controller */ - sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500, pic[2]); - /* GPIO */ - ppc405_gpio_init(0xef600700); - /* CPU control */ - ppc405cr_cpc_init(env, clk_setup, sysclk); - - return env; -} - /*****************************************************************************/ /* PowerPC 405EP */ /* CPU control */ -- cgit v1.2.3