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Diffstat (limited to 'arch/mips/bcm63xx/cpu.c')
-rw-r--r--arch/mips/bcm63xx/cpu.c419
1 files changed, 228 insertions, 191 deletions
diff --git a/arch/mips/bcm63xx/cpu.c b/arch/mips/bcm63xx/cpu.c
index 7c7e4d4486c..fd4e76c00a4 100644
--- a/arch/mips/bcm63xx/cpu.c
+++ b/arch/mips/bcm63xx/cpu.c
@@ -25,170 +25,76 @@ const int *bcm63xx_irqs;
EXPORT_SYMBOL(bcm63xx_irqs);
static u16 bcm63xx_cpu_id;
-static u16 bcm63xx_cpu_rev;
+static u8 bcm63xx_cpu_rev;
static unsigned int bcm63xx_cpu_freq;
static unsigned int bcm63xx_memory_size;
-/*
- * 6338 register sets and irqs
- */
-static const unsigned long bcm96338_regs_base[] = {
- [RSET_DSL_LMEM] = BCM_6338_DSL_LMEM_BASE,
- [RSET_PERF] = BCM_6338_PERF_BASE,
- [RSET_TIMER] = BCM_6338_TIMER_BASE,
- [RSET_WDT] = BCM_6338_WDT_BASE,
- [RSET_UART0] = BCM_6338_UART0_BASE,
- [RSET_UART1] = BCM_6338_UART1_BASE,
- [RSET_GPIO] = BCM_6338_GPIO_BASE,
- [RSET_SPI] = BCM_6338_SPI_BASE,
- [RSET_OHCI0] = BCM_6338_OHCI0_BASE,
- [RSET_OHCI_PRIV] = BCM_6338_OHCI_PRIV_BASE,
- [RSET_USBH_PRIV] = BCM_6338_USBH_PRIV_BASE,
- [RSET_UDC0] = BCM_6338_UDC0_BASE,
- [RSET_MPI] = BCM_6338_MPI_BASE,
- [RSET_PCMCIA] = BCM_6338_PCMCIA_BASE,
- [RSET_SDRAM] = BCM_6338_SDRAM_BASE,
- [RSET_DSL] = BCM_6338_DSL_BASE,
- [RSET_ENET0] = BCM_6338_ENET0_BASE,
- [RSET_ENET1] = BCM_6338_ENET1_BASE,
- [RSET_ENETDMA] = BCM_6338_ENETDMA_BASE,
- [RSET_MEMC] = BCM_6338_MEMC_BASE,
- [RSET_DDR] = BCM_6338_DDR_BASE,
+static const unsigned long bcm3368_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(3368)
};
-static const int bcm96338_irqs[] = {
- [IRQ_TIMER] = BCM_6338_TIMER_IRQ,
- [IRQ_UART0] = BCM_6338_UART0_IRQ,
- [IRQ_DSL] = BCM_6338_DSL_IRQ,
- [IRQ_ENET0] = BCM_6338_ENET0_IRQ,
- [IRQ_ENET_PHY] = BCM_6338_ENET_PHY_IRQ,
- [IRQ_ENET0_RXDMA] = BCM_6338_ENET0_RXDMA_IRQ,
- [IRQ_ENET0_TXDMA] = BCM_6338_ENET0_TXDMA_IRQ,
+static const int bcm3368_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(3368)
};
-/*
- * 6345 register sets and irqs
- */
-static const unsigned long bcm96345_regs_base[] = {
- [RSET_DSL_LMEM] = BCM_6345_DSL_LMEM_BASE,
- [RSET_PERF] = BCM_6345_PERF_BASE,
- [RSET_TIMER] = BCM_6345_TIMER_BASE,
- [RSET_WDT] = BCM_6345_WDT_BASE,
- [RSET_UART0] = BCM_6345_UART0_BASE,
- [RSET_UART1] = BCM_6345_UART1_BASE,
- [RSET_GPIO] = BCM_6345_GPIO_BASE,
- [RSET_SPI] = BCM_6345_SPI_BASE,
- [RSET_UDC0] = BCM_6345_UDC0_BASE,
- [RSET_OHCI0] = BCM_6345_OHCI0_BASE,
- [RSET_OHCI_PRIV] = BCM_6345_OHCI_PRIV_BASE,
- [RSET_USBH_PRIV] = BCM_6345_USBH_PRIV_BASE,
- [RSET_MPI] = BCM_6345_MPI_BASE,
- [RSET_PCMCIA] = BCM_6345_PCMCIA_BASE,
- [RSET_DSL] = BCM_6345_DSL_BASE,
- [RSET_ENET0] = BCM_6345_ENET0_BASE,
- [RSET_ENET1] = BCM_6345_ENET1_BASE,
- [RSET_ENETDMA] = BCM_6345_ENETDMA_BASE,
- [RSET_EHCI0] = BCM_6345_EHCI0_BASE,
- [RSET_SDRAM] = BCM_6345_SDRAM_BASE,
- [RSET_MEMC] = BCM_6345_MEMC_BASE,
- [RSET_DDR] = BCM_6345_DDR_BASE,
+static const unsigned long bcm6328_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6328)
};
-static const int bcm96345_irqs[] = {
- [IRQ_TIMER] = BCM_6345_TIMER_IRQ,
- [IRQ_UART0] = BCM_6345_UART0_IRQ,
- [IRQ_DSL] = BCM_6345_DSL_IRQ,
- [IRQ_ENET0] = BCM_6345_ENET0_IRQ,
- [IRQ_ENET_PHY] = BCM_6345_ENET_PHY_IRQ,
- [IRQ_ENET0_RXDMA] = BCM_6345_ENET0_RXDMA_IRQ,
- [IRQ_ENET0_TXDMA] = BCM_6345_ENET0_TXDMA_IRQ,
+static const int bcm6328_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6328)
};
-/*
- * 6348 register sets and irqs
- */
-static const unsigned long bcm96348_regs_base[] = {
- [RSET_DSL_LMEM] = BCM_6348_DSL_LMEM_BASE,
- [RSET_PERF] = BCM_6348_PERF_BASE,
- [RSET_TIMER] = BCM_6348_TIMER_BASE,
- [RSET_WDT] = BCM_6348_WDT_BASE,
- [RSET_UART0] = BCM_6348_UART0_BASE,
- [RSET_UART1] = BCM_6348_UART1_BASE,
- [RSET_GPIO] = BCM_6348_GPIO_BASE,
- [RSET_SPI] = BCM_6348_SPI_BASE,
- [RSET_OHCI0] = BCM_6348_OHCI0_BASE,
- [RSET_OHCI_PRIV] = BCM_6348_OHCI_PRIV_BASE,
- [RSET_USBH_PRIV] = BCM_6348_USBH_PRIV_BASE,
- [RSET_MPI] = BCM_6348_MPI_BASE,
- [RSET_PCMCIA] = BCM_6348_PCMCIA_BASE,
- [RSET_SDRAM] = BCM_6348_SDRAM_BASE,
- [RSET_DSL] = BCM_6348_DSL_BASE,
- [RSET_ENET0] = BCM_6348_ENET0_BASE,
- [RSET_ENET1] = BCM_6348_ENET1_BASE,
- [RSET_ENETDMA] = BCM_6348_ENETDMA_BASE,
- [RSET_MEMC] = BCM_6348_MEMC_BASE,
- [RSET_DDR] = BCM_6348_DDR_BASE,
+static const unsigned long bcm6338_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6338)
};
-static const int bcm96348_irqs[] = {
- [IRQ_TIMER] = BCM_6348_TIMER_IRQ,
- [IRQ_UART0] = BCM_6348_UART0_IRQ,
- [IRQ_DSL] = BCM_6348_DSL_IRQ,
- [IRQ_ENET0] = BCM_6348_ENET0_IRQ,
- [IRQ_ENET1] = BCM_6348_ENET1_IRQ,
- [IRQ_ENET_PHY] = BCM_6348_ENET_PHY_IRQ,
- [IRQ_OHCI0] = BCM_6348_OHCI0_IRQ,
- [IRQ_PCMCIA] = BCM_6348_PCMCIA_IRQ,
- [IRQ_ENET0_RXDMA] = BCM_6348_ENET0_RXDMA_IRQ,
- [IRQ_ENET0_TXDMA] = BCM_6348_ENET0_TXDMA_IRQ,
- [IRQ_ENET1_RXDMA] = BCM_6348_ENET1_RXDMA_IRQ,
- [IRQ_ENET1_TXDMA] = BCM_6348_ENET1_TXDMA_IRQ,
- [IRQ_PCI] = BCM_6348_PCI_IRQ,
+static const int bcm6338_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6338)
};
-/*
- * 6358 register sets and irqs
- */
-static const unsigned long bcm96358_regs_base[] = {
- [RSET_DSL_LMEM] = BCM_6358_DSL_LMEM_BASE,
- [RSET_PERF] = BCM_6358_PERF_BASE,
- [RSET_TIMER] = BCM_6358_TIMER_BASE,
- [RSET_WDT] = BCM_6358_WDT_BASE,
- [RSET_UART0] = BCM_6358_UART0_BASE,
- [RSET_UART1] = BCM_6358_UART1_BASE,
- [RSET_GPIO] = BCM_6358_GPIO_BASE,
- [RSET_SPI] = BCM_6358_SPI_BASE,
- [RSET_OHCI0] = BCM_6358_OHCI0_BASE,
- [RSET_EHCI0] = BCM_6358_EHCI0_BASE,
- [RSET_OHCI_PRIV] = BCM_6358_OHCI_PRIV_BASE,
- [RSET_USBH_PRIV] = BCM_6358_USBH_PRIV_BASE,
- [RSET_MPI] = BCM_6358_MPI_BASE,
- [RSET_PCMCIA] = BCM_6358_PCMCIA_BASE,
- [RSET_SDRAM] = BCM_6358_SDRAM_BASE,
- [RSET_DSL] = BCM_6358_DSL_BASE,
- [RSET_ENET0] = BCM_6358_ENET0_BASE,
- [RSET_ENET1] = BCM_6358_ENET1_BASE,
- [RSET_ENETDMA] = BCM_6358_ENETDMA_BASE,
- [RSET_MEMC] = BCM_6358_MEMC_BASE,
- [RSET_DDR] = BCM_6358_DDR_BASE,
+static const unsigned long bcm6345_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6345)
+};
+
+static const int bcm6345_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6345)
+};
+
+static const unsigned long bcm6348_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6348)
+};
+
+static const int bcm6348_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6348)
+
+};
+
+static const unsigned long bcm6358_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6358)
+};
+
+static const int bcm6358_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6358)
+
+};
+
+static const unsigned long bcm6362_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6362)
+};
+
+static const int bcm6362_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6362)
+
+};
+
+static const unsigned long bcm6368_regs_base[] = {
+ __GEN_CPU_REGS_TABLE(6368)
};
-static const int bcm96358_irqs[] = {
- [IRQ_TIMER] = BCM_6358_TIMER_IRQ,
- [IRQ_UART0] = BCM_6358_UART0_IRQ,
- [IRQ_UART1] = BCM_6358_UART1_IRQ,
- [IRQ_DSL] = BCM_6358_DSL_IRQ,
- [IRQ_ENET0] = BCM_6358_ENET0_IRQ,
- [IRQ_ENET1] = BCM_6358_ENET1_IRQ,
- [IRQ_ENET_PHY] = BCM_6358_ENET_PHY_IRQ,
- [IRQ_OHCI0] = BCM_6358_OHCI0_IRQ,
- [IRQ_EHCI0] = BCM_6358_EHCI0_IRQ,
- [IRQ_PCMCIA] = BCM_6358_PCMCIA_IRQ,
- [IRQ_ENET0_RXDMA] = BCM_6358_ENET0_RXDMA_IRQ,
- [IRQ_ENET0_TXDMA] = BCM_6358_ENET0_TXDMA_IRQ,
- [IRQ_ENET1_RXDMA] = BCM_6358_ENET1_RXDMA_IRQ,
- [IRQ_ENET1_TXDMA] = BCM_6358_ENET1_TXDMA_IRQ,
- [IRQ_PCI] = BCM_6358_PCI_IRQ,
+static const int bcm6368_irqs[] = {
+ __GEN_CPU_IRQ_TABLE(6368)
+
};
u16 __bcm63xx_get_cpu_id(void)
@@ -198,7 +104,7 @@ u16 __bcm63xx_get_cpu_id(void)
EXPORT_SYMBOL(__bcm63xx_get_cpu_id);
-u16 bcm63xx_get_cpu_rev(void)
+u8 bcm63xx_get_cpu_rev(void)
{
return bcm63xx_cpu_rev;
}
@@ -217,20 +123,51 @@ unsigned int bcm63xx_get_memory_size(void)
static unsigned int detect_cpu_clock(void)
{
- unsigned int tmp, n1 = 0, n2 = 0, m1 = 0;
+ u16 cpu_id = bcm63xx_get_cpu_id();
+
+ switch (cpu_id) {
+ case BCM3368_CPU_ID:
+ return 300000000;
+
+ case BCM6328_CPU_ID:
+ {
+ unsigned int tmp, mips_pll_fcvo;
+
+ tmp = bcm_misc_readl(MISC_STRAPBUS_6328_REG);
+ mips_pll_fcvo = (tmp & STRAPBUS_6328_FCVO_MASK)
+ >> STRAPBUS_6328_FCVO_SHIFT;
+
+ switch (mips_pll_fcvo) {
+ case 0x12:
+ case 0x14:
+ case 0x19:
+ return 160000000;
+ case 0x1c:
+ return 192000000;
+ case 0x13:
+ case 0x15:
+ return 200000000;
+ case 0x1a:
+ return 384000000;
+ case 0x16:
+ return 400000000;
+ default:
+ return 320000000;
+ }
- /* BCM6338 has a fixed 240 Mhz frequency */
- if (BCMCPU_IS_6338())
+ }
+ case BCM6338_CPU_ID:
+ /* BCM6338 has a fixed 240 Mhz frequency */
return 240000000;
- /* BCM6345 has a fixed 140Mhz frequency */
- if (BCMCPU_IS_6345())
+ case BCM6345_CPU_ID:
+ /* BCM6345 has a fixed 140Mhz frequency */
return 140000000;
- /*
- * frequency depends on PLL configuration:
- */
- if (BCMCPU_IS_6348()) {
+ case BCM6348_CPU_ID:
+ {
+ unsigned int tmp, n1, n2, m1;
+
/* 16MHz * (N1 + 1) * (N2 + 2) / (M1_CPU + 1) */
tmp = bcm_perf_readl(PERF_MIPSPLLCTL_REG);
n1 = (tmp & MIPSPLLCTL_N1_MASK) >> MIPSPLLCTL_N1_SHIFT;
@@ -239,17 +176,83 @@ static unsigned int detect_cpu_clock(void)
n1 += 1;
n2 += 2;
m1 += 1;
+ return (16 * 1000000 * n1 * n2) / m1;
}
- if (BCMCPU_IS_6358()) {
+ case BCM6358_CPU_ID:
+ {
+ unsigned int tmp, n1, n2, m1;
+
/* 16MHz * N1 * N2 / M1_CPU */
tmp = bcm_ddr_readl(DDR_DMIPSPLLCFG_REG);
n1 = (tmp & DMIPSPLLCFG_N1_MASK) >> DMIPSPLLCFG_N1_SHIFT;
n2 = (tmp & DMIPSPLLCFG_N2_MASK) >> DMIPSPLLCFG_N2_SHIFT;
m1 = (tmp & DMIPSPLLCFG_M1_MASK) >> DMIPSPLLCFG_M1_SHIFT;
+ return (16 * 1000000 * n1 * n2) / m1;
+ }
+
+ case BCM6362_CPU_ID:
+ {
+ unsigned int tmp, mips_pll_fcvo;
+
+ tmp = bcm_misc_readl(MISC_STRAPBUS_6362_REG);
+ mips_pll_fcvo = (tmp & STRAPBUS_6362_FCVO_MASK)
+ >> STRAPBUS_6362_FCVO_SHIFT;
+ switch (mips_pll_fcvo) {
+ case 0x03:
+ case 0x0b:
+ case 0x13:
+ case 0x1b:
+ return 240000000;
+ case 0x04:
+ case 0x0c:
+ case 0x14:
+ case 0x1c:
+ return 160000000;
+ case 0x05:
+ case 0x0e:
+ case 0x16:
+ case 0x1e:
+ case 0x1f:
+ return 400000000;
+ case 0x06:
+ return 440000000;
+ case 0x07:
+ case 0x17:
+ return 384000000;
+ case 0x15:
+ case 0x1d:
+ return 200000000;
+ default:
+ return 320000000;
+ }
+ }
+ case BCM6368_CPU_ID:
+ {
+ unsigned int tmp, p1, p2, ndiv, m1;
+
+ /* (64MHz / P1) * P2 * NDIV / M1_CPU */
+ tmp = bcm_ddr_readl(DDR_DMIPSPLLCFG_6368_REG);
+
+ p1 = (tmp & DMIPSPLLCFG_6368_P1_MASK) >>
+ DMIPSPLLCFG_6368_P1_SHIFT;
+
+ p2 = (tmp & DMIPSPLLCFG_6368_P2_MASK) >>
+ DMIPSPLLCFG_6368_P2_SHIFT;
+
+ ndiv = (tmp & DMIPSPLLCFG_6368_NDIV_MASK) >>
+ DMIPSPLLCFG_6368_NDIV_SHIFT;
+
+ tmp = bcm_ddr_readl(DDR_DMIPSPLLDIV_6368_REG);
+ m1 = (tmp & DMIPSPLLDIV_6368_MDIV_MASK) >>
+ DMIPSPLLDIV_6368_MDIV_SHIFT;
+
+ return (((64 * 1000000) / p1) * p2 * ndiv) / m1;
}
- return (16 * 1000000 * n1 * n2) / m1;
+ default:
+ panic("Failed to detect clock for CPU with id=%04X\n", cpu_id);
+ }
}
/*
@@ -260,8 +263,13 @@ static unsigned int detect_memory_size(void)
unsigned int cols = 0, rows = 0, is_32bits = 0, banks = 0;
u32 val;
- if (BCMCPU_IS_6345())
- return (8 * 1024 * 1024);
+ if (BCMCPU_IS_6328() || BCMCPU_IS_6362())
+ return bcm_ddr_readl(DDR_CSEND_REG) << 24;
+
+ if (BCMCPU_IS_6345()) {
+ val = bcm_sdram_readl(SDRAM_MBASE_REG);
+ return (val * 8 * 1024 * 1024);
+ }
if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
val = bcm_sdram_readl(SDRAM_CFG_REG);
@@ -271,7 +279,7 @@ static unsigned int detect_memory_size(void)
banks = (val & SDRAM_CFG_BANK_MASK) ? 2 : 1;
}
- if (BCMCPU_IS_6358()) {
+ if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || BCMCPU_IS_6368()) {
val = bcm_memc_readl(MEMC_CFG_REG);
rows = (val & MEMC_CFG_ROW_MASK) >> MEMC_CFG_ROW_SHIFT;
cols = (val & MEMC_CFG_COL_MASK) >> MEMC_CFG_COL_SHIFT;
@@ -290,35 +298,33 @@ static unsigned int detect_memory_size(void)
void __init bcm63xx_cpu_init(void)
{
- unsigned int tmp, expected_cpu_id;
- struct cpuinfo_mips *c = &current_cpu_data;
+ unsigned int tmp;
unsigned int cpu = smp_processor_id();
+ u32 chipid_reg;
/* soc registers location depends on cpu type */
- expected_cpu_id = 0;
+ chipid_reg = 0;
- switch (c->cputype) {
+ switch (current_cpu_type()) {
case CPU_BMIPS3300:
- if ((read_c0_prid() & 0xff00) == PRID_IMP_BMIPS3300_ALT) {
- expected_cpu_id = BCM6348_CPU_ID;
- bcm63xx_regs_base = bcm96348_regs_base;
- bcm63xx_irqs = bcm96348_irqs;
- } else {
+ if ((read_c0_prid() & PRID_IMP_MASK) != PRID_IMP_BMIPS3300_ALT)
__cpu_name[cpu] = "Broadcom BCM6338";
- expected_cpu_id = BCM6338_CPU_ID;
- bcm63xx_regs_base = bcm96338_regs_base;
- bcm63xx_irqs = bcm96338_irqs;
- }
- break;
+ /* fall-through */
case CPU_BMIPS32:
- expected_cpu_id = BCM6345_CPU_ID;
- bcm63xx_regs_base = bcm96345_regs_base;
- bcm63xx_irqs = bcm96345_irqs;
+ chipid_reg = BCM_6345_PERF_BASE;
break;
case CPU_BMIPS4350:
- expected_cpu_id = BCM6358_CPU_ID;
- bcm63xx_regs_base = bcm96358_regs_base;
- bcm63xx_irqs = bcm96358_irqs;
+ switch ((read_c0_prid() & PRID_REV_MASK)) {
+ case 0x04:
+ chipid_reg = BCM_3368_PERF_BASE;
+ break;
+ case 0x10:
+ chipid_reg = BCM_6345_PERF_BASE;
+ break;
+ default:
+ chipid_reg = BCM_6368_PERF_BASE;
+ break;
+ }
break;
}
@@ -326,20 +332,51 @@ void __init bcm63xx_cpu_init(void)
* really early to panic, but delaying panic would not help since we
* will never get any working console
*/
- if (!expected_cpu_id)
+ if (!chipid_reg)
panic("unsupported Broadcom CPU");
- /*
- * bcm63xx_regs_base is set, we can access soc registers
- */
-
- /* double check CPU type */
- tmp = bcm_perf_readl(PERF_REV_REG);
+ /* read out CPU type */
+ tmp = bcm_readl(chipid_reg);
bcm63xx_cpu_id = (tmp & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
bcm63xx_cpu_rev = (tmp & REV_REVID_MASK) >> REV_REVID_SHIFT;
- if (bcm63xx_cpu_id != expected_cpu_id)
- panic("bcm63xx CPU id mismatch");
+ switch (bcm63xx_cpu_id) {
+ case BCM3368_CPU_ID:
+ bcm63xx_regs_base = bcm3368_regs_base;
+ bcm63xx_irqs = bcm3368_irqs;
+ break;
+ case BCM6328_CPU_ID:
+ bcm63xx_regs_base = bcm6328_regs_base;
+ bcm63xx_irqs = bcm6328_irqs;
+ break;
+ case BCM6338_CPU_ID:
+ bcm63xx_regs_base = bcm6338_regs_base;
+ bcm63xx_irqs = bcm6338_irqs;
+ break;
+ case BCM6345_CPU_ID:
+ bcm63xx_regs_base = bcm6345_regs_base;
+ bcm63xx_irqs = bcm6345_irqs;
+ break;
+ case BCM6348_CPU_ID:
+ bcm63xx_regs_base = bcm6348_regs_base;
+ bcm63xx_irqs = bcm6348_irqs;
+ break;
+ case BCM6358_CPU_ID:
+ bcm63xx_regs_base = bcm6358_regs_base;
+ bcm63xx_irqs = bcm6358_irqs;
+ break;
+ case BCM6362_CPU_ID:
+ bcm63xx_regs_base = bcm6362_regs_base;
+ bcm63xx_irqs = bcm6362_irqs;
+ break;
+ case BCM6368_CPU_ID:
+ bcm63xx_regs_base = bcm6368_regs_base;
+ bcm63xx_irqs = bcm6368_irqs;
+ break;
+ default:
+ panic("unsupported broadcom CPU %x", bcm63xx_cpu_id);
+ break;
+ }
bcm63xx_cpu_freq = detect_cpu_clock();
bcm63xx_memory_size = detect_memory_size();