[brcm63xx] add experimental support for bcm6338

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13691 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/brcm63xx/config-2.6.27 b/target/linux/brcm63xx/config-2.6.27
index e9b6555..4b7d1d8 100644 (file)
--- a/target/linux/brcm63xx/config-2.6.27
+++ b/target/linux/brcm63xx/config-2.6.27
@@ -14,6 +14,7 @@ CONFIG_AUDIT_GENERIC=y
 CONFIG_BASE_SMALL=0
 # CONFIG_BCM47XX is not set
 CONFIG_BCM63XX=y
+CONFIG_BCM63XX_CPU_6338=y
 CONFIG_BCM63XX_CPU_6348=y
 CONFIG_BCM63XX_CPU_6358=y
 CONFIG_BCM63XX_ENET=y

diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig
index 8c192e7..325f69a 100644 (file)
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig
+++ b/target/linux/brcm63xx/files/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/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
index 0a403dd..b7c041f 100644 (file)
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
@@ -25,6 +25,29 @@ static u16 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_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,
+};
+
+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
  */
@@ -137,6 +160,10 @@ static unsigned int detect_cpu_clock(void)
 {
        unsigned int tmp, n1 = 0, n2 = 0, m1 = 0;
 
+       if (BCMCPU_IS_6338()) {
+               return 240000000;
+       }
+
        /*
         * frequency depends on PLL configuration:
         */
@@ -170,7 +197,7 @@ 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 +231,11 @@ void __init bcm63xx_cpu_init(void)
        expected_cpu_id = 0;
 
        switch (c->cputype) {
+       case CPU_BCM6338:
+               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/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_cpu.h b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_cpu.h
index 4c8c3fd..560da0b 100644 (file)
--- a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_cpu.h
+++ b/target/linux/brcm63xx/files/include/asm-mips/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 +101,19 @@ enum bcm63xx_regs_set {
 #define RSET_EHCI_SIZE                 256
 #define RSET_PCMCIA_SIZE               12
 
+/*
+ * 6338 register sets base address
+ */
+
+#define BCM_6338_PERF_BASE             (0xfffe0000)
+#define BCM_6338_TIMER_BASE            (0xfffe0000)
+#define BCM_6338_WDT_BASE              (0xfffe001c)
+#define BCM_6338_UART0_BASE            (0xfffe0300)
+#define BCM_6338_GPIO_BASE             (0xfffe0400)
+#define BCM_6338_SPI_BASE              (0xfffe0c00)
+#define BCM_6338_SAR_BASE              (0xfffe2000)
+#define BCM_6338_MEMC_BASE             (0xfffe3100)
+
 /*
  * 6348 register sets base address
  */
@@ -147,6 +174,24 @@ 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_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_MEMC:
+               return BCM_6338_MEMC_BASE;
+       }
+#endif
 #ifdef CONFIG_BCM63XX_CPU_6348
        switch (set) {
        case RSET_DSL_LMEM:
@@ -266,6 +311,27 @@ enum bcm63xx_irq {
        IRQ_PCMCIA,
 };
 
+/*
+ * 6338 irqs
+ */
+#define BCM_6338_TIMER_IRQ             (IRQ_INTERNAL_BASE + 0)
+#define BCM_6338_SPI_IR                        (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_USBS_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
  */

diff --git a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_regs.h b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_regs.h
index d628601..cdc44fc 100644 (file)
--- a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_regs.h
+++ b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_regs.h
@@ -15,6 +15,15 @@
 /* Clock Control register */
 #define PERF_CKCTL_REG                 0x4
 
+#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_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 +92,25 @@
 /* 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)
@@ -763,7 +791,7 @@
 #define SPI_INT_MASK                   0x704
 #define SPI_INTR_CMD_DONE              0x01
 #define SPI_INTR_RX_OVERFLOW           0x02
-#define SPI_INTR_INTR_TX_UNDERFLOW     0x04
+#define SPI_INTR_TX_UNDERFLOW          0x04
 #define SPI_INTR_TX_OVERFLOW           0x08
 #define SPI_INTR_RX_UNDERFLOW          0x10
 #define SPI_INTR_CLEAR_ALL             0x1f