sunxi: Add basic A33 basic support

Enable full support for the A33 SoC including display, otg-usb, etc.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile
index 59c26ae..3052b27 100644 (file)
--- a/arch/arm/cpu/armv7/sunxi/Makefile
+++ b/arch/arm/cpu/armv7/sunxi/Makefile
@@ -39,5 +39,6 @@ obj-$(CONFIG_MACH_SUN5I)      += dram_sun4i.o
 obj-$(CONFIG_MACH_SUN6I)       += dram_sun6i.o
 obj-$(CONFIG_MACH_SUN7I)       += dram_sun4i.o
 obj-$(CONFIG_MACH_SUN8I_A23)   += dram_sun8i_a23.o
+obj-$(CONFIG_MACH_SUN8I_A33)   += dram_sun8i_a33.o
 obj-y  += fel_utils.o
 endif

diff --git a/arch/arm/cpu/armv7/sunxi/cpu_info.c b/arch/arm/cpu/armv7/sunxi/cpu_info.c
index 77435f3..30ec4ac 100644 (file)
--- a/arch/arm/cpu/armv7/sunxi/cpu_info.c
+++ b/arch/arm/cpu/armv7/sunxi/cpu_info.c
@@ -66,6 +66,8 @@ int print_cpuinfo(void)
        puts("CPU:   Allwinner A20 (SUN7I)\n");
 #elif defined CONFIG_MACH_SUN8I_A23
        puts("CPU:   Allwinner A23 (SUN8I)\n");
+#elif defined CONFIG_MACH_SUN8I_A33
+       puts("CPU:   Allwinner A33 (SUN8I)\n");
 #else
 #warning Please update cpu_info.c with correct CPU information
        puts("CPU:   SUNXI Family\n");

diff --git a/arch/arm/cpu/armv7/sunxi/usbc.c b/arch/arm/cpu/armv7/sunxi/usbc.c
index 7d55e41..7b883fb 100644 (file)
--- a/arch/arm/cpu/armv7/sunxi/usbc.c
+++ b/arch/arm/cpu/armv7/sunxi/usbc.c
@@ -28,7 +28,11 @@
 #endif
 
 #define SUNXI_USB_PMU_IRQ_ENABLE       0x800
+#ifdef CONFIG_MACH_SUN8I_A33
+#define SUNXI_USB_CSR                  0x410
+#else
 #define SUNXI_USB_CSR                  0x404
+#endif
 #define SUNXI_USB_PASSBY_EN            1
 
 #define SUNXI_EHCI_AHB_ICHR8_EN                (1 << 10)
@@ -103,6 +107,11 @@ static void usb_phy_write(struct sunxi_usbc_hcd *sunxi_usbc, int addr,
        int j = 0, usbc_bit = 0;
        void *dest = sunxi_usbc_get_io_base(0) + SUNXI_USB_CSR;
 
+#ifdef CONFIG_MACH_SUN8I_A33
+       /* CSR needs to be explicitly initialized to 0 on A33 */
+       writel(0, dest);
+#endif
+
        usbc_bit = 1 << (sunxi_usbc->id * 2);
        for (j = 0; j < len; j++) {
                /* set the bit address to be written */

diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 3d865d1..6495187 100644 (file)
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -52,6 +52,12 @@ config MACH_SUN8I_A23
        select SUNXI_GEN_SUN6I
        select SUPPORT_SPL
 
+config MACH_SUN8I_A33
+       bool "sun8i (Allwinner A33)"
+       select CPU_V7
+       select SUNXI_GEN_SUN6I
+       select SUPPORT_SPL
+
 endchoice
 
 # The sun8i SoCs share a lot, this helps to avoid a lot of "if A23 || A33"

diff --git a/drivers/usb/musb-new/musb_regs.h b/drivers/usb/musb-new/musb_regs.h
index 27e4ed4..90288c4 100644 (file)
--- a/drivers/usb/musb-new/musb_regs.h
+++ b/drivers/usb/musb-new/musb_regs.h
@@ -458,8 +458,13 @@ static inline u8 musb_read_ulpi_buscontrol(void __iomem *mbase)
 
 static inline u8 musb_read_configdata(void __iomem *mbase)
 {
+#ifdef CONFIG_MACH_SUN8I_A33
+       /* <Sigh> allwinner saves a reg, and we need to hardcode this */
+       return 0xde;
+#else
        musb_writeb(mbase, MUSB_INDEX, 0);
        return musb_readb(mbase, 0x10 + MUSB_CONFIGDATA);
+#endif
 }
 
 static inline u16 musb_read_hwvers(void __iomem *mbase)

diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c
index 2ee1056..1163ecf 100644 (file)
--- a/drivers/video/sunxi_display.c
+++ b/drivers/video/sunxi_display.c
@@ -947,6 +947,9 @@ static void sunxi_drc_init(void)
                (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
 
        /* On sun6i the drc must be clocked even when in pass-through mode */
+#ifdef CONFIG_MACH_SUN8I_A33
+       setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_SAT);
+#endif
        setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DRC0);
        clock_set_de_mod_clock(&ccm->iep_drc0_clk_cfg, 300000000);
 #endif