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hw/ppc: Delete unused ppc405cr_init() code 

The function ppc405cr_init() has apparently been unused since it was
added in commit 8ecc791352 in 2007.

Remove this dead code, so we don't have to convert it away from using
ppcuic_init().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210108171212.16500-3-peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Peter Maydell 2021-01-08 17:12:10 +00:00 committed by David Gibson
parent 706e944206
commit 7980822342
2 changed files with 0 additions and 351 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hw/ppc/ppc405.h
View File

@ -62,12 +62,6 @@ ram_addr_t ppc405_set_bootinfo (CPUPPCState *env, ppc4xx_bd_info_t *bd,
void ppc4xx_plb_init(CPUPPCState *env);
void ppc405_ebc_init(CPUPPCState *env);
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);
CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem,
MemoryRegion ram_memories[2],
hwaddr ram_bases[2],

345
hw/ppc/ppc405_uc.c
View File

@ -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 */