Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- arch/arm/include/asm/arch-sunxi/prcm.h | 3 ++- board/sunxi/board.c | 49 ++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/arch-sunxi/prcm.h b/arch/arm/include/asm/arch-sunxi/prcm.h index 556c1af..9e8a367 100644 --- a/arch/arm/include/asm/arch-sunxi/prcm.h +++ b/arch/arm/include/asm/arch-sunxi/prcm.h @@ -219,7 +219,8 @@ struct sunxi_prcm_reg { u32 clk_outd; /* 0x0f0 */ u8 res6[0xc]; /* 0x0f4 */ u32 cpu_pwroff; /* 0x100 */ - u8 res7[0xc]; /* 0x104 */ + u32 cluster1_cpu_pwr; /* 0x104 */ + u8 res7[0x8]; /* 0x108 */ u32 vdd_sys_pwroff; /* 0x110 */ u8 res8[0x4]; /* 0x114 */ u32 gpu_pwroff; /* 0x118 */ diff --git a/board/sunxi/board.c b/board/sunxi/board.c index 3cf3614..65029ab 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -20,6 +20,7 @@ #include <asm/arch/dram.h> #include <asm/arch/gpio.h> #include <asm/arch/mmc.h> +#include <asm/arch/prcm.h> #include <asm/arch/usb_phy.h> #ifndef CONFIG_ARM64 #include <asm/armv7.h> @@ -30,6 +31,18 @@ #include <net.h> #include <sy8106a.h>
+/* CCI-400 registers */ +struct cci400_control { + uint32_t unused0[0x3]; + uint32_t status; + uint32_t unused1[0xffc]; + uint32_t snoop_ctrl_a7; + uint32_t sha_ord_a7; + uint32_t unused2[0x3fe]; + uint32_t snoop_ctrl_a15; + uint32_t sha_ord_a15; +}; + #if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD) /* So that we can use pin names in Kconfig and sunxi_name_to_gpio() */ int soft_i2c_gpio_sda; @@ -122,6 +135,42 @@ int board_init(void) gpio_direction_output(CONFIG_MACPWR, 1); #endif
+#ifdef CONFIG_ENABLE_CLUSTER_1 + struct sunxi_prcm_reg *prcm = + (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; + clrbits_le32(&prcm->cluster1_cpu_pwr, 0x1); +#endif + +#ifdef CONFIG_ENABLE_CCI400_SNOOP_CLUSTERS_0_1 + printf("Enabling snoop controls..."); + struct cci400_control *cci = (struct cci400_control *)SUN8I_CCI400_BASE; + uint32_t snoop_ctl; + + /* Set up cluster 0 CCI port */ + snoop_ctl = readl(&cci->snoop_ctrl_a7); + snoop_ctl |= CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN; + writel(snoop_ctl, &cci->snoop_ctrl_a7); + + /* Wait for snoop control change to take effect */ + while (readl(&cci->status) & 0x1); + + /* Set up cluster 1 CCI port */ + snoop_ctl = readl(&cci->snoop_ctrl_a15); + snoop_ctl |= CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN; + writel(snoop_ctl, &cci->snoop_ctrl_a15); + + /* Wait for snoop control change to take effect */ + while (readl(&cci->status) & 0x1); + + /* Force non-sharable memory */ + writel(CCI400_SHAORD_NON_SHAREABLE, &cci->sha_ord_a7); + writel(CCI400_SHAORD_NON_SHAREABLE, &cci->sha_ord_a15); + + /* Synchronize CCI enable */ + __asm__ volatile ("dsb\n"); + printf("done!\n"); +#endif + /* Uses dm gpio code so do this here and not in i2c_init_board() */ return soft_i2c_board_init(); }