This patch adds support for the BCM6338 SoC, it is very similar
to BCM6348 except that:
- the CPU frequency is not locked on PLL and is fixed
- there is only one Ethernet MAC therefore the DMA zone is twice smaller
Signed-off-by: Florian Fainelli <florian@xxxxxxxxxxx>
---
diff --git a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig
index 8c192e7..325f69a 100644
--- a/arch/mips/bcm63xx/Kconfig
+++ b/arch/mips/bcm63xx/Kconfig
@@ -1,6 +1,13 @@
menu "CPU support"
depends on BCM63XX
+config BCM63XX_CPU_6338
+ bool "support 6338 CPU"
+ select HW_HAS_PCI
+ select USB_ARCH_HAS_OHCI
+ select USB_OHCI_BIG_ENDIAN_DESC
+ select USB_OHCI_BIG_ENDIAN_MMIO
+
config BCM63XX_CPU_6348
bool "support 6348 CPU"
select HW_HAS_PCI
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index ae1f41f..d189965 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -49,7 +49,9 @@ static void enet_misc_set(struct clk *clk, int enable)
{
u32 mask;
- if (BCMCPU_IS_6348())
+ if (BCMCPU_IS_6338())
+ mask = CKCTL_6338_ENET_EN;
+ else if (BCMCPU_IS_6348())
mask = CKCTL_6348_ENET_EN;
else
/* BCMCPU_IS_6358 */
@@ -143,7 +145,9 @@ static void spi_set(struct clk *clk, int enable)
{
u32 mask;
- if (BCMCPU_IS_6348())
+ if (BCMCPU_IS_6338())
+ mask = CKCTL_6338_SPI_EN;
+ else if (BCMCPU_IS_6348())
mask = CKCTL_6348_SPI_EN;
else
/* BCMCPU_IS_6358 */
diff --git a/arch/mips/bcm63xx/cpu.c b/arch/mips/bcm63xx/cpu.c
index 9d6cfce..cb41855 100644
--- a/arch/mips/bcm63xx/cpu.c
+++ b/arch/mips/bcm63xx/cpu.c
@@ -4,6 +4,7 @@
* for more details.
*
* Copyright (C) 2008 Maxime Bizon <mbizon@xxxxxxxxxx>
+ * Copyright (C) 2009 Florian Fainelli <florian@xxxxxxxxxxx>
*/
#include <linux/kernel.h>
@@ -26,6 +27,42 @@ 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_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 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,
+};
+
+/*
* 6348 register sets and irqs
*/
static const unsigned long bcm96348_regs_base[] = {
@@ -137,6 +174,10 @@ static unsigned int detect_cpu_clock(void)
{
unsigned int tmp, n1 = 0, n2 = 0, m1 = 0;
+ /* BCM6338 has a fixed 240 Mhz frequency */
+ if (BCMCPU_IS_6338())
+ return 240000000;
+
/*
* frequency depends on PLL configuration:
*/
@@ -170,7 +211,7 @@ static unsigned int detect_memory_size(void)
unsigned int cols = 0, rows = 0, is_32bits = 0, banks = 0;
u32 val;
- if (BCMCPU_IS_6348()) {
+ if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
val = bcm_sdram_readl(SDRAM_CFG_REG);
rows = (val & SDRAM_CFG_ROW_MASK) >> SDRAM_CFG_ROW_SHIFT;
cols = (val & SDRAM_CFG_COL_MASK) >> SDRAM_CFG_COL_SHIFT;
@@ -204,6 +245,13 @@ void __init bcm63xx_cpu_init(void)
expected_cpu_id = 0;
switch (c->cputype) {
+ /* BCM6338 as the same PrId as BCM3302 see
+ * arch/mips/kernel/cpu-probe.c */
+ case CPU_BCM3302:
+ expected_cpu_id = BCM6338_CPU_ID;
+ bcm63xx_regs_base = bcm96338_regs_base;
+ bcm63xx_irqs = bcm96338_irqs;
+ break;
case CPU_BCM6348:
expected_cpu_id = BCM6348_CPU_ID;
bcm63xx_regs_base = bcm96348_regs_base;
diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index 188fa66..9f544ba 100644
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -107,7 +107,10 @@ int __init bcm63xx_enet_register(int unit,
if (!shared_device_registered) {
shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
shared_res[0].end = shared_res[0].start;
- shared_res[0].end += RSET_ENETDMA_SIZE - 1;
+ if (BCMCPU_IS_6338())
+ shared_res[0].end += (RSET_ENETDMA_SIZE / 2) - 1;
+ else
+ shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
ret = platform_device_register(&bcm63xx_enet_shared_device);
if (ret)
diff --git a/arch/mips/bcm63xx/prom.c b/arch/mips/bcm63xx/prom.c
index d97ceed..6a41acb 100644
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -25,7 +25,9 @@ void __init prom_init(void)
bcm_wdt_writel(WDT_STOP_2, WDT_CTL_REG);
/* disable all hardware blocks clock for now */
- if (BCMCPU_IS_6348())
+ if (BCMCPU_IS_6338())
+ mask = CKCTL_6338_ALL_SAFE_EN;
+ else if (BCMCPU_IS_6348())
mask = CKCTL_6348_ALL_SAFE_EN;
else
/* BCMCPU_IS_6358() */
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
index 29b61fd..3c107d0 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -9,6 +9,7 @@
* compile time if only one CPU support is enabled (idea stolen from
* arm mach-types)
*/
+#define BCM6338_CPU_ID 0x6338
#define BCM6348_CPU_ID 0x6348
#define BCM6358_CPU_ID 0x6358
@@ -17,6 +18,19 @@ u16 __bcm63xx_get_cpu_id(void);
u16 bcm63xx_get_cpu_rev(void);
unsigned int bcm63xx_get_cpu_freq(void);
+#ifdef CONFIG_BCM63XX_CPU_6338
+# ifdef bcm63xx_get_cpu_id
+# undef bcm63xx_get_cpu_id
+# define bcm63xx_get_cpu_id() __bcm63xx_get_cpu_id()
+# define BCMCPU_RUNTIME_DETECT
+# else
+# define bcm63xx_get_cpu_id() BCM6338_CPU_ID
+# endif
+# define BCMCPU_IS_6338() (bcm63xx_get_cpu_id() == BCM6338_CPU_ID)
+#else
+# define BCMCPU_IS_6338() (0)
+#endif
+
#ifdef CONFIG_BCM63XX_CPU_6348
# ifdef bcm63xx_get_cpu_id
# undef bcm63xx_get_cpu_id
@@ -87,6 +101,36 @@ enum bcm63xx_regs_set {
#define RSET_PCMCIA_SIZE 12
/*
+ * 6338 register sets base address
+ */
+#define BCM_6338_DSL_LMEM_BASE (0xfff00000)
+#define BCM_6338_PERF_BASE (0xfffe0000)
+#define BCM_6338_BB_BASE (0xfffe0100)
+#define BCM_6338_TIMER_BASE (0xfffe0200)
+#define BCM_6338_WDT_BASE (0xfffe021c)
+#define BCM_6338_UART0_BASE (0xfffe0300)
+#define BCM_6338_GPIO_BASE (0xfffe0400)
+#define BCM_6338_SPI_BASE (0xfffe0c00)
+#define BCM_6338_UDC0_BASE (0xdeadbeef)
+#define BCM_6338_USBDMA_BASE (0xfffe2400)
+#define BCM_6338_OHCI0_BASE (0xdeadbeef)
+#define BCM_6338_OHCI_PRIV_BASE (0xfffe3000)
+#define BCM_6338_USBH_PRIV_BASE (0xdeadbeef)
+#define BCM_6338_MPI_BASE (0xfffe3160)
+#define BCM_6338_PCMCIA_BASE (0xdeadbeef)
+#define BCM_6338_SDRAM_REGS_BASE (0xfffe3100)
+#define BCM_6338_DSL_BASE (0xfffe1000)
+#define BCM_6338_SAR_BASE (0xfffe2000)
+#define BCM_6338_UBUS_BASE (0xdeadbeef)
+#define BCM_6338_ENET0_BASE (0xfffe2800)
+#define BCM_6338_ENET1_BASE (0xdeadbeef)
+#define BCM_6338_ENETDMA_BASE (0xfffe2400)
+#define BCM_6338_EHCI0_BASE (0xdeadbeef)
+#define BCM_6338_SDRAM_BASE (0xfffe3100)
+#define BCM_6338_MEMC_BASE (0xdeadbeef)
+#define BCM_6338_DDR_BASE (0xdeadbeef)
+
+/*
* 6348 register sets base address
*/
#define BCM_6348_DSL_LMEM_BASE (0xfff00000)
@@ -146,6 +190,52 @@ static inline unsigned long bcm63xx_regset_address(enum bcm63xx_regs_set set)
#ifdef BCMCPU_RUNTIME_DETECT
return bcm63xx_regs_base[set];
#else
+#ifdef CONFIG_BCM63XX_CPU_6338
+ switch (set) {
+ case RSET_DSL_LMEM:
+ return BCM_6338_DSL_LMEM_BASE;
+ case RSET_PERF:
+ return BCM_6338_PERF_BASE;
+ case RSET_TIMER:
+ return BCM_6338_TIMER_BASE;
+ case RSET_WDT:
+ return BCM_6338_WDT_BASE;
+ case RSET_UART0:
+ return BCM_6338_UART0_BASE;
+ case RSET_GPIO:
+ return BCM_6338_GPIO_BASE;
+ case RSET_SPI:
+ return BCM_6338_SPI_BASE;
+ case RSET_UDC0:
+ return BCM_6338_UDC0_BASE;
+ case RSET_OHCI0:
+ return BCM_6338_OHCI0_BASE;
+ case RSET_OHCI_PRIV:
+ return BCM_6338_OHCI_PRIV_BASE;
+ case RSET_USBH_PRIV:
+ return BCM_6338_USBH_PRIV_BASE;
+ case RSET_MPI:
+ return BCM_6338_MPI_BASE;
+ case RSET_PCMCIA:
+ return BCM_6338_PCMCIA_BASE;
+ case RSET_DSL:
+ return BCM_6338_DSL_BASE;
+ case RSET_ENET0:
+ return BCM_6338_ENET0_BASE;
+ case RSET_ENET1:
+ return BCM_6338_ENET1_BASE;
+ case RSET_ENETDMA:
+ return BCM_6338_ENETDMA_BASE;
+ case RSET_EHCI0:
+ return BCM_6338_EHCI0_BASE;
+ case RSET_SDRAM:
+ return BCM_6338_SDRAM_BASE;
+ case RSET_MEMC:
+ return BCM_6338_MEMC_BASE;
+ case RSET_DDR:
+ return BCM_6338_DDR_BASE;
+ }
+#endif
#ifdef CONFIG_BCM63XX_CPU_6348
switch (set) {
case RSET_DSL_LMEM:
@@ -265,6 +355,27 @@ enum bcm63xx_irq {
};
/*
+ * 6338 irqs
+ */
+#define BCM_6338_TIMER_IRQ (IRQ_INTERNAL_BASE + 0)
+#define BCM_6338_SPI_IRQ (IRQ_INTERNAL_BASE + 1)
+#define BCM_6338_UART0_IRQ (IRQ_INTERNAL_BASE + 2)
+#define BCM_6338_DG_IRQ (IRQ_INTERNAL_BASE + 4)
+#define BCM_6338_DSL_IRQ (IRQ_INTERNAL_BASE + 5)
+#define BCM_6338_ATM_IRQ (IRQ_INTERNAL_BASE + 6)
+#define BCM_6338_UDC0_IRQ (IRQ_INTERNAL_BASE + 7)
+#define BCM_6338_ENET0_IRQ (IRQ_INTERNAL_BASE + 8)
+#define BCM_6338_ENET_PHY_IRQ (IRQ_INTERNAL_BASE + 9)
+#define BCM_6338_SDRAM_IRQ (IRQ_INTERNAL_BASE + 10)
+#define BCM_6338_USB_CNTL_RX_DMA_IRQ (IRQ_INTERNAL_BASE + 11)
+#define BCM_6338_USB_CNTL_TX_DMA_IRQ (IRQ_INTERNAL_BASE + 12)
+#define BCM_6338_USB_BULK_RX_DMA_IRQ (IRQ_INTERNAL_BASE + 13)
+#define BCM_6338_USB_BULK_TX_DMA_IRQ (IRQ_INTERNAL_BASE + 14)
+#define BCM_6338_ENET0_RXDMA_IRQ (IRQ_INTERNAL_BASE + 15)
+#define BCM_6338_ENET0_TXDMA_IRQ (IRQ_INTERNAL_BASE + 16)
+#define BCM_6338_SDIO_IRQ (IRQ_INTERNAL_BASE + 17)
+
+/*
* 6348 irqs
*/
#define BCM_6348_TIMER_IRQ (IRQ_INTERNAL_BASE + 0)
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 7b1dbb3..3249e8c 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -15,6 +15,20 @@
/* Clock Control register */
#define PERF_CKCTL_REG 0x4
+#define CKCTL_6338_ADSLPHY_EN (1 << 0)
+#define CKCTL_6338_MPI_EN (1 << 1)
+#define CKCTL_6338_DRAM_EN (1 << 2)
+#define CKCTL_6338_ENET_EN (1 << 4)
+#define CKCTL_6338_USBS_EN (1 << 4)
+#define CKCTL_6338_SAR_EN (1 << 5)
+#define CKCTL_6338_SPI_EN (1 << 9)
+
+#define CKCTL_6338_ALL_SAFE_EN (CKCTL_6338_ADSLPHY_EN | \
+ CKCTL_6338_MPI_EN | \
+ CKCTL_6338_ENET_EN | \
+ CKCTL_6338_SAR_EN | \
+ CKCTL_6338_SPI_EN)
+
#define CKCTL_6348_ADSLPHY_EN (1 << 0)
#define CKCTL_6348_MPI_EN (1 << 1)
#define CKCTL_6348_SDRAM_EN (1 << 2)
@@ -83,6 +97,25 @@
/* Soft Reset register */
#define PERF_SOFTRESET_REG 0x28
+#define SOFTRESET_6338_SPI_MASK (1 << 0)
+#define SOFTRESET_6338_ENET_MASK (1 << 2)
+#define SOFTRESET_6338_USBH_MASK (1 << 3)
+#define SOFTRESET_6338_USBS_MASK (1 << 4)
+#define SOFTRESET_6338_ADSL_MASK (1 << 5)
+#define SOFTRESET_6338_DMAMEM_MASK (1 << 6)
+#define SOFTRESET_6338_SAR_MASK (1 << 7)
+#define SOFTRESET_6338_ACLC_MASK (1 << 8)
+#define SOFTRESET_6338_ADSLMIPSPLL_MASK (1 << 10)
+#define SOFTRESET_6338_ALL (SOFTRESET_6338_SPI_MASK | \
+ SOFTRESET_6338_ENET_MASK | \
+ SOFTRESET_6338_USBH_MASK | \
+ SOFTRESET_6338_USBS_MASK | \
+ SOFTRESET_6338_ADSL_MASK | \
+ SOFTRESET_6338_DMAMEM_MASK | \
+ SOFTRESET_6338_SAR_MASK | \
+ SOFTRESET_6338_ACLC_MASK | \
+ SOFTRESET_6338_ADSLMIPSPLL_MASK)
+
#define SOFTRESET_6348_SPI_MASK (1 << 0)
#define SOFTRESET_6348_ENET_MASK (1 << 2)
#define SOFTRESET_6348_USBH_MASK (1 << 3)
diff --git a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
index 1a5c4b1..80c3aa2 100644
--- a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
@@ -24,7 +24,7 @@
#define cpu_has_smartmips 0
#define cpu_has_vtag_icache 0
-#if !defined(BCMCPU_RUNTIME_DETECT) && defined(CONFIG_BCMCPU_IS_6348)
+#if !defined(BCMCPU_RUNTIME_DETECT) && (defined(CONFIG_BCMCPU_IS_6348) || defined(CONFIG_CPU_IS_6338))
#define cpu_has_dc_aliases 0
#endif
