diff options
Diffstat (limited to 'target/linux/ath79/patches-4.14/0016-MIPS-ath79-add-support-for-QCA953x-SoC.patch')
| -rw-r--r-- | target/linux/ath79/patches-4.14/0016-MIPS-ath79-add-support-for-QCA953x-SoC.patch | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-4.14/0016-MIPS-ath79-add-support-for-QCA953x-SoC.patch b/target/linux/ath79/patches-4.14/0016-MIPS-ath79-add-support-for-QCA953x-SoC.patch new file mode 100644 index 0000000..0eb1831 --- /dev/null +++ b/target/linux/ath79/patches-4.14/0016-MIPS-ath79-add-support-for-QCA953x-SoC.patch @@ -0,0 +1,350 @@ +From cff23ba486e3c5d17c4d7e446f5eddead855c101 Mon Sep 17 00:00:00 2001 +From: John Crispin <john@phrozen.org> +Date: Tue, 6 Mar 2018 08:45:55 +0100 +Subject: [PATCH 16/27] MIPS: ath79: add support for QCA953x SoC + +Note that the clock calculation looks very similar to the QCA955x, but the +meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed. + +Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> +--- + arch/mips/ath79/Kconfig | 6 ++- + arch/mips/ath79/clock.c | 87 ++++++++++++++++++++++++++++++++ + arch/mips/ath79/common.c | 4 ++ + arch/mips/ath79/dev-common.c | 4 ++ + arch/mips/ath79/early_printk.c | 2 + + arch/mips/ath79/irq.c | 33 +++++++++++- + arch/mips/ath79/setup.c | 21 ++++++-- + arch/mips/include/asm/mach-ath79/ath79.h | 11 ++++ + 8 files changed, 162 insertions(+), 6 deletions(-) + +diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig +index 9547cf1ea38d..b03f5c8b9d1e 100644 +--- a/arch/mips/ath79/Kconfig ++++ b/arch/mips/ath79/Kconfig +@@ -94,6 +94,10 @@ config SOC_AR934X + select PCI_AR724X if PCI + def_bool n + ++config SOC_QCA953X ++ select USB_ARCH_HAS_EHCI ++ def_bool n ++ + config SOC_QCA955X + select HW_HAS_PCI + select PCI_AR724X if PCI +@@ -115,7 +119,7 @@ config ATH79_DEV_USB + def_bool n + + config ATH79_DEV_WMAC +- depends on (SOC_AR913X || SOC_AR933X || SOC_AR934X || SOC_QCA955X) ++ depends on (SOC_AR913X || SOC_AR933X || SOC_AR934X || SOC_QCA953X || SOC_QCA955X) + def_bool n + + endif +diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c +index 6b1000b6a6a6..b9595b2d1b65 100644 +--- a/arch/mips/ath79/clock.c ++++ b/arch/mips/ath79/clock.c +@@ -355,6 +355,91 @@ static void __init ar934x_clocks_init(void) + iounmap(dpll_base); + } + ++static void __init qca953x_clocks_init(void) ++{ ++ unsigned long ref_rate; ++ unsigned long cpu_rate; ++ unsigned long ddr_rate; ++ unsigned long ahb_rate; ++ u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv; ++ u32 cpu_pll, ddr_pll; ++ u32 bootstrap; ++ ++ bootstrap = ath79_reset_rr(QCA953X_RESET_REG_BOOTSTRAP); ++ if (bootstrap & QCA953X_BOOTSTRAP_REF_CLK_40) ++ ref_rate = 40 * 1000 * 1000; ++ else ++ ref_rate = 25 * 1000 * 1000; ++ ++ pll = ath79_pll_rr(QCA953X_PLL_CPU_CONFIG_REG); ++ out_div = (pll >> QCA953X_PLL_CPU_CONFIG_OUTDIV_SHIFT) & ++ QCA953X_PLL_CPU_CONFIG_OUTDIV_MASK; ++ ref_div = (pll >> QCA953X_PLL_CPU_CONFIG_REFDIV_SHIFT) & ++ QCA953X_PLL_CPU_CONFIG_REFDIV_MASK; ++ nint = (pll >> QCA953X_PLL_CPU_CONFIG_NINT_SHIFT) & ++ QCA953X_PLL_CPU_CONFIG_NINT_MASK; ++ frac = (pll >> QCA953X_PLL_CPU_CONFIG_NFRAC_SHIFT) & ++ QCA953X_PLL_CPU_CONFIG_NFRAC_MASK; ++ ++ cpu_pll = nint * ref_rate / ref_div; ++ cpu_pll += frac * (ref_rate >> 6) / ref_div; ++ cpu_pll /= (1 << out_div); ++ ++ pll = ath79_pll_rr(QCA953X_PLL_DDR_CONFIG_REG); ++ out_div = (pll >> QCA953X_PLL_DDR_CONFIG_OUTDIV_SHIFT) & ++ QCA953X_PLL_DDR_CONFIG_OUTDIV_MASK; ++ ref_div = (pll >> QCA953X_PLL_DDR_CONFIG_REFDIV_SHIFT) & ++ QCA953X_PLL_DDR_CONFIG_REFDIV_MASK; ++ nint = (pll >> QCA953X_PLL_DDR_CONFIG_NINT_SHIFT) & ++ QCA953X_PLL_DDR_CONFIG_NINT_MASK; ++ frac = (pll >> QCA953X_PLL_DDR_CONFIG_NFRAC_SHIFT) & ++ QCA953X_PLL_DDR_CONFIG_NFRAC_MASK; ++ ++ ddr_pll = nint * ref_rate / ref_div; ++ ddr_pll += frac * (ref_rate >> 6) / (ref_div << 4); ++ ddr_pll /= (1 << out_div); ++ ++ clk_ctrl = ath79_pll_rr(QCA953X_PLL_CLK_CTRL_REG); ++ ++ postdiv = (clk_ctrl >> QCA953X_PLL_CLK_CTRL_CPU_POST_DIV_SHIFT) & ++ QCA953X_PLL_CLK_CTRL_CPU_POST_DIV_MASK; ++ ++ if (clk_ctrl & QCA953X_PLL_CLK_CTRL_CPU_PLL_BYPASS) ++ cpu_rate = ref_rate; ++ else if (clk_ctrl & QCA953X_PLL_CLK_CTRL_CPUCLK_FROM_CPUPLL) ++ cpu_rate = cpu_pll / (postdiv + 1); ++ else ++ cpu_rate = ddr_pll / (postdiv + 1); ++ ++ postdiv = (clk_ctrl >> QCA953X_PLL_CLK_CTRL_DDR_POST_DIV_SHIFT) & ++ QCA953X_PLL_CLK_CTRL_DDR_POST_DIV_MASK; ++ ++ if (clk_ctrl & QCA953X_PLL_CLK_CTRL_DDR_PLL_BYPASS) ++ ddr_rate = ref_rate; ++ else if (clk_ctrl & QCA953X_PLL_CLK_CTRL_DDRCLK_FROM_DDRPLL) ++ ddr_rate = ddr_pll / (postdiv + 1); ++ else ++ ddr_rate = cpu_pll / (postdiv + 1); ++ ++ postdiv = (clk_ctrl >> QCA953X_PLL_CLK_CTRL_AHB_POST_DIV_SHIFT) & ++ QCA953X_PLL_CLK_CTRL_AHB_POST_DIV_MASK; ++ ++ if (clk_ctrl & QCA953X_PLL_CLK_CTRL_AHB_PLL_BYPASS) ++ ahb_rate = ref_rate; ++ else if (clk_ctrl & QCA953X_PLL_CLK_CTRL_AHBCLK_FROM_DDRPLL) ++ ahb_rate = ddr_pll / (postdiv + 1); ++ else ++ ahb_rate = cpu_pll / (postdiv + 1); ++ ++ ath79_add_sys_clkdev("ref", ref_rate); ++ ath79_add_sys_clkdev("cpu", cpu_rate); ++ ath79_add_sys_clkdev("ddr", ddr_rate); ++ ath79_add_sys_clkdev("ahb", ahb_rate); ++ ++ clk_add_alias("wdt", NULL, "ref", NULL); ++ clk_add_alias("uart", NULL, "ref", NULL); ++} ++ + static void __init qca955x_clocks_init(void) + { + unsigned long ref_rate; +@@ -450,6 +535,8 @@ void __init ath79_clocks_init(void) + ar933x_clocks_init(); + else if (soc_is_ar934x()) + ar934x_clocks_init(); ++ else if (soc_is_qca953x()) ++ qca953x_clocks_init(); + else if (soc_is_qca955x()) + qca955x_clocks_init(); + else +diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c +index a32a9181a296..a485a7c35b9b 100644 +--- a/arch/mips/ath79/common.c ++++ b/arch/mips/ath79/common.c +@@ -103,6 +103,8 @@ void ath79_device_reset_set(u32 mask) + reg = AR933X_RESET_REG_RESET_MODULE; + else if (soc_is_ar934x()) + reg = AR934X_RESET_REG_RESET_MODULE; ++ else if (soc_is_qca953x()) ++ reg = QCA953X_RESET_REG_RESET_MODULE; + else if (soc_is_qca955x()) + reg = QCA955X_RESET_REG_RESET_MODULE; + else +@@ -131,6 +133,8 @@ void ath79_device_reset_clear(u32 mask) + reg = AR933X_RESET_REG_RESET_MODULE; + else if (soc_is_ar934x()) + reg = AR934X_RESET_REG_RESET_MODULE; ++ else if (soc_is_qca953x()) ++ reg = QCA953X_RESET_REG_RESET_MODULE; + else if (soc_is_qca955x()) + reg = QCA955X_RESET_REG_RESET_MODULE; + else +diff --git a/arch/mips/ath79/dev-common.c b/arch/mips/ath79/dev-common.c +index 9d0172a4dc69..99d8b88f1e6d 100644 +--- a/arch/mips/ath79/dev-common.c ++++ b/arch/mips/ath79/dev-common.c +@@ -85,6 +85,7 @@ void __init ath79_register_uart(void) + soc_is_ar724x() || + soc_is_ar913x() || + soc_is_ar934x() || ++ soc_is_qca953x() || + soc_is_qca955x()) { + ath79_uart_data[0].uartclk = uart_clk_rate; + platform_device_register(&ath79_uart_device); +@@ -148,6 +149,9 @@ void __init ath79_gpio_init(void) + } else if (soc_is_ar934x()) { + ath79_gpio_pdata.ngpios = AR934X_GPIO_COUNT; + ath79_gpio_pdata.oe_inverted = 1; ++ } else if (soc_is_qca953x()) { ++ ath79_gpio_pdata.ngpios = QCA953X_GPIO_COUNT; ++ ath79_gpio_pdata.oe_inverted = 1; + } else if (soc_is_qca955x()) { + ath79_gpio_pdata.ngpios = QCA955X_GPIO_COUNT; + ath79_gpio_pdata.oe_inverted = 1; +diff --git a/arch/mips/ath79/early_printk.c b/arch/mips/ath79/early_printk.c +index ec3978678653..cc00839b7181 100644 +--- a/arch/mips/ath79/early_printk.c ++++ b/arch/mips/ath79/early_printk.c +@@ -116,6 +116,8 @@ static void prom_putchar_init(void) + case REV_ID_MAJOR_AR9341: + case REV_ID_MAJOR_AR9342: + case REV_ID_MAJOR_AR9344: ++ case REV_ID_MAJOR_QCA9533: ++ case REV_ID_MAJOR_QCA9533_V2: + case REV_ID_MAJOR_QCA9556: + case REV_ID_MAJOR_QCA9558: + _prom_putchar = prom_putchar_ar71xx; +diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c +index 2dfff1f19004..756b5aee3500 100644 +--- a/arch/mips/ath79/irq.c ++++ b/arch/mips/ath79/irq.c +@@ -56,6 +56,34 @@ static void ar934x_ip2_irq_init(void) + irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch); + } + ++static void qca953x_ip2_irq_dispatch(struct irq_desc *desc) ++{ ++ u32 status; ++ ++ status = ath79_reset_rr(QCA953X_RESET_REG_PCIE_WMAC_INT_STATUS); ++ ++ if (status & QCA953X_PCIE_WMAC_INT_PCIE_ALL) { ++ ath79_ddr_wb_flush(3); ++ generic_handle_irq(ATH79_IP2_IRQ(0)); ++ } else if (status & QCA953X_PCIE_WMAC_INT_WMAC_ALL) { ++ ath79_ddr_wb_flush(4); ++ generic_handle_irq(ATH79_IP2_IRQ(1)); ++ } else { ++ spurious_interrupt(); ++ } ++} ++ ++static void qca953x_irq_init(void) ++{ ++ int i; ++ ++ for (i = ATH79_IP2_IRQ_BASE; ++ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++) ++ irq_set_chip_and_handler(i, &dummy_irq_chip, handle_level_irq); ++ ++ irq_set_chained_handler(ATH79_CPU_IRQ(2), qca953x_ip2_irq_dispatch); ++} ++ + static void qca955x_ip2_irq_dispatch(struct irq_desc *desc) + { + u32 status; +@@ -143,7 +171,7 @@ void __init arch_init_irq(void) + soc_is_ar913x() || soc_is_ar933x()) { + irq_wb_chan2 = 3; + irq_wb_chan3 = 2; +- } else if (soc_is_ar934x()) { ++ } else if (soc_is_ar934x() || soc_is_qca953x()) { + irq_wb_chan3 = 2; + } + +@@ -154,6 +182,7 @@ void __init arch_init_irq(void) + else if (soc_is_ar724x() || + soc_is_ar933x() || + soc_is_ar934x() || ++ soc_is_qca953x() || + soc_is_qca955x()) + misc_is_ar71xx = false; + else +@@ -164,6 +193,8 @@ void __init arch_init_irq(void) + + if (soc_is_ar934x()) + ar934x_ip2_irq_init(); ++ else if (soc_is_qca953x()) ++ qca953x_irq_init(); + else if (soc_is_qca955x()) + qca955x_irq_init(); + } +diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c +index 26a058d58d37..f782ae6c77d6 100644 +--- a/arch/mips/ath79/setup.c ++++ b/arch/mips/ath79/setup.c +@@ -60,6 +60,7 @@ static void __init ath79_detect_sys_type(void) + u32 major; + u32 minor; + u32 rev = 0; ++ u32 ver = 1; + + id = ath79_reset_rr(AR71XX_RESET_REG_REV_ID); + major = id & REV_ID_MAJOR_MASK; +@@ -152,6 +153,17 @@ static void __init ath79_detect_sys_type(void) + rev = id & AR934X_REV_ID_REVISION_MASK; + break; + ++ case REV_ID_MAJOR_QCA9533_V2: ++ ver = 2; ++ ath79_soc_rev = 2; ++ /* drop through */ ++ ++ case REV_ID_MAJOR_QCA9533: ++ ath79_soc = ATH79_SOC_QCA9533; ++ chip = "9533"; ++ rev = id & QCA953X_REV_ID_REVISION_MASK; ++ break; ++ + case REV_ID_MAJOR_QCA9556: + ath79_soc = ATH79_SOC_QCA9556; + chip = "9556"; +@@ -168,11 +180,12 @@ static void __init ath79_detect_sys_type(void) + panic("ath79: unknown SoC, id:0x%08x", id); + } + +- ath79_soc_rev = rev; ++ if (ver == 1) ++ ath79_soc_rev = rev; + +- if (soc_is_qca955x()) +- sprintf(ath79_sys_type, "Qualcomm Atheros QCA%s rev %u", +- chip, rev); ++ if (soc_is_qca953x() || soc_is_qca955x()) ++ sprintf(ath79_sys_type, "Qualcomm Atheros QCA%s ver %u rev %u", ++ chip, ver, rev); + else + sprintf(ath79_sys_type, "Atheros AR%s rev %u", chip, rev); + pr_info("SoC: %s\n", ath79_sys_type); +diff --git a/arch/mips/include/asm/mach-ath79/ath79.h b/arch/mips/include/asm/mach-ath79/ath79.h +index 6e6c0fead776..98a7ccf3d358 100644 +--- a/arch/mips/include/asm/mach-ath79/ath79.h ++++ b/arch/mips/include/asm/mach-ath79/ath79.h +@@ -32,6 +32,7 @@ enum ath79_soc_type { + ATH79_SOC_AR9341, + ATH79_SOC_AR9342, + ATH79_SOC_AR9344, ++ ATH79_SOC_QCA9533, + ATH79_SOC_QCA9556, + ATH79_SOC_QCA9558, + }; +@@ -100,6 +101,16 @@ static inline int soc_is_ar934x(void) + return soc_is_ar9341() || soc_is_ar9342() || soc_is_ar9344(); + } + ++static inline int soc_is_qca9533(void) ++{ ++ return ath79_soc == ATH79_SOC_QCA9533; ++} ++ ++static inline int soc_is_qca953x(void) ++{ ++ return soc_is_qca9533(); ++} ++ + static inline int soc_is_qca9556(void) + { + return ath79_soc == ATH79_SOC_QCA9556; +-- +2.11.0 + |