From patchwork Fri Mar 22 13:24:12 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic Desroches X-Patchwork-Id: 2319921 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 68B7CDFE82 for ; Fri, 22 Mar 2013 13:31:01 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UJ20E-0001Vc-Px; Fri, 22 Mar 2013 13:27:26 +0000 Received: from eusmtp01.atmel.com ([212.144.249.243]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UJ1ym-00017g-2d for linux-arm-kernel@lists.infradead.org; Fri, 22 Mar 2013 13:26:04 +0000 Received: from ibiza.corp.atmel.com (10.161.101.13) by eusmtp01.atmel.com (10.161.101.31) with Microsoft SMTP Server id 14.2.318.4; Fri, 22 Mar 2013 14:25:05 +0100 From: To: Subject: [PATCH 4/6] ARM: at91: introduce SAMA5 support Date: Fri, 22 Mar 2013 14:24:12 +0100 Message-ID: <1363958654-7713-5-git-send-email-ludovic.desroches@atmel.com> X-Mailer: git-send-email 1.7.11.3 In-Reply-To: <1363958654-7713-1-git-send-email-ludovic.desroches@atmel.com> References: <1363958654-7713-1-git-send-email-ludovic.desroches@atmel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130322_092556_412109_CE9B2940 X-CRM114-Status: GOOD ( 24.64 ) X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -2.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: marc.zyngier@arm.com, plagnioj@jcrosoft.com, Ludovic Desroches , nicolas.ferre@atmel.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Ludovic Desroches This patch introduces the SAMA5 support and a generic board file for SAMA5 devices. It also updates the PMC driver to manage clock division which is a requirement since some peripherals can't work at the bus frequency on SAMA5. Signed-off-by: Ludovic Desroches Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/Kconfig | 33 +++ arch/arm/mach-at91/Makefile | 4 + arch/arm/mach-at91/board-dt-sama5.c | 86 +++++++ arch/arm/mach-at91/clock.c | 109 +++++++-- arch/arm/mach-at91/clock.h | 2 + arch/arm/mach-at91/include/mach/at91_pmc.h | 18 +- arch/arm/mach-at91/include/mach/cpu.h | 20 ++ arch/arm/mach-at91/include/mach/sama5d3.h | 73 ++++++ arch/arm/mach-at91/sama5d3.c | 377 +++++++++++++++++++++++++++++ arch/arm/mach-at91/setup.c | 27 +++ arch/arm/mach-at91/soc.h | 5 + 11 files changed, 725 insertions(+), 29 deletions(-) create mode 100644 arch/arm/mach-at91/board-dt-sama5.c create mode 100644 arch/arm/mach-at91/include/mach/sama5d3.h create mode 100644 arch/arm/mach-at91/sama5d3.c diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 8b35c7f..0280238 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -29,6 +29,14 @@ config SOC_AT91SAM9 select MULTI_IRQ_HANDLER select SPARSE_IRQ +config SOC_SAMA5 + bool + select AT91_SAM9_TIME + select CPU_V7 + select GENERIC_CLOCKEVENTS + select MULTI_IRQ_HANDLER + select SPARSE_IRQ + menu "Atmel AT91 System-on-Chip" choice @@ -41,10 +49,27 @@ config SOC_SAM_V4_V5 Select this if you are using one of Atmel's AT91SAM9, AT91RM9200 or AT91X40 SoC. +config SOC_SAM_V7 + bool "Cortex A5" + help + Select this if you are using one of Atmel's SAMA5D3 SoC. + endchoice comment "Atmel AT91 Processor" +if SOC_SAM_V7 +config SOC_SAMA5D3 + bool "SAMA5D3 family" + depends on SOC_SAM_V7 + select SOC_SAMA5 + select HAVE_FB_ATMEL + select HAVE_AT91_DBGU1 + help + Select this if you are using one of Atmel's SAMA5D3 family SoC. + This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35. +endif + if SOC_SAM_V4_V5 config SOC_AT91RM9200 bool "AT91RM9200" @@ -134,6 +159,14 @@ config MACH_AT91SAM9_DT Select this if you want to experiment device-tree with an Atmel Evaluation Kit. +config MACH_SAMA5_DT + bool "Atmel SAMA5 Evaluation Kits with device-tree support" + depends on SOC_SAMA5 + select USE_OF + help + Select this if you want to experiment device-tree with + an Atmel Evaluation Kit. + # ---------------------------------------------------------- comment "AT91 Feature Selections" diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 74e9b5b..788562d 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_SOC_AT91SAM9G45) += at91sam9g45.o obj-$(CONFIG_SOC_AT91SAM9N12) += at91sam9n12.o obj-$(CONFIG_SOC_AT91SAM9X5) += at91sam9x5.o obj-$(CONFIG_SOC_AT91SAM9RL) += at91sam9rl.o +obj-$(CONFIG_SOC_SAMA5D3) += sama5d3.o obj-$(CONFIG_ARCH_AT91RM9200) += at91rm9200_devices.o obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260_devices.o @@ -91,6 +92,9 @@ obj-$(CONFIG_MACH_AT91SAM9M10G45EK) += board-sam9m10g45ek.o obj-$(CONFIG_MACH_AT91RM9200_DT) += board-dt-rm9200.o obj-$(CONFIG_MACH_AT91SAM9_DT) += board-dt-sam9.o +# SAMA5 board with device-tree +obj-$(CONFIG_MACH_SAMA5_DT) += board-dt-sama5.o + # AT91X40 board-specific support obj-$(CONFIG_MACH_AT91EB01) += board-eb01.o diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c new file mode 100644 index 0000000..705305e --- /dev/null +++ b/arch/arm/mach-at91/board-dt-sama5.c @@ -0,0 +1,86 @@ +/* + * Setup code for SAMA5 Evaluation Kits with Device Tree support + * + * Copyright (C) 2013 Atmel, + * 2013 Ludovic Desroches + * + * Licensed under GPLv2 or later. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "at91_aic.h" +#include "generic.h" + + +static const struct of_device_id irq_of_match[] __initconst = { + + { .compatible = "atmel,sama5d3-aic", .data = at91_aic5_of_init }, + { /*sentinel*/ } +}; + +static void __init at91_dt_init_irq(void) +{ + of_irq_init(irq_of_match); +} + +static int ksz9021rn_phy_fixup(struct phy_device *phy) +{ + int value; + +#define GMII_RCCPSR 260 +#define GMII_RRDPSR 261 +#define GMII_ERCR 11 +#define GMII_ERDWR 12 + + /* Set delay values */ + value = GMII_RCCPSR | 0x8000; + phy_write(phy, GMII_ERCR, value); + value = 0xF2F4; + phy_write(phy, GMII_ERDWR, value); + value = GMII_RRDPSR | 0x8000; + phy_write(phy, GMII_ERCR, value); + value = 0x2222; + phy_write(phy, GMII_ERDWR, value); + + return 0; +} + +static void __init sama5_dt_device_init(void) +{ + if (of_machine_is_compatible("atmel,sama5d3xcm")) + phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK, + ksz9021rn_phy_fixup); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *sama5_dt_board_compat[] __initdata = { + "atmel,sama5", + NULL +}; + +DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)") + /* Maintainer: Atmel */ + .init_time = at91sam926x_pit_init, + .map_io = at91_map_io, + .handle_irq = at91_aic5_handle_irq, + .init_early = at91_dt_initialize, + .init_irq = at91_dt_init_irq, + .init_machine = sama5_dt_device_init, + .dt_compat = sama5_dt_board_compat, +MACHINE_END diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index 3336150..da84188 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -54,7 +54,10 @@ EXPORT_SYMBOL_GPL(at91_pmc_base); */ #define cpu_has_utmi() ( cpu_is_at91sam9rl() \ || cpu_is_at91sam9g45() \ - || cpu_is_at91sam9x5()) + || cpu_is_at91sam9x5() \ + || cpu_is_sama5d3()) + +#define cpu_has_1056M_plla() (cpu_is_sama5d3()) #define cpu_has_800M_plla() ( cpu_is_at91sam9g20() \ || cpu_is_at91sam9g45() \ @@ -75,7 +78,8 @@ EXPORT_SYMBOL_GPL(at91_pmc_base); || cpu_is_at91sam9n12())) #define cpu_has_upll() (cpu_is_at91sam9g45() \ - || cpu_is_at91sam9x5()) + || cpu_is_at91sam9x5() \ + || cpu_is_sama5d3()) /* USB host HS & FS */ #define cpu_has_uhp() (!cpu_is_at91sam9rl()) @@ -83,18 +87,22 @@ EXPORT_SYMBOL_GPL(at91_pmc_base); /* USB device FS only */ #define cpu_has_udpfs() (!(cpu_is_at91sam9rl() \ || cpu_is_at91sam9g45() \ - || cpu_is_at91sam9x5())) + || cpu_is_at91sam9x5() \ + || cpu_is_sama5d3())) #define cpu_has_plladiv2() (cpu_is_at91sam9g45() \ || cpu_is_at91sam9x5() \ - || cpu_is_at91sam9n12()) + || cpu_is_at91sam9n12() \ + || cpu_is_sama5d3()) #define cpu_has_mdiv3() (cpu_is_at91sam9g45() \ || cpu_is_at91sam9x5() \ - || cpu_is_at91sam9n12()) + || cpu_is_at91sam9n12() \ + || cpu_is_sama5d3()) #define cpu_has_alt_prescaler() (cpu_is_at91sam9x5() \ - || cpu_is_at91sam9n12()) + || cpu_is_at91sam9n12() \ + || cpu_is_sama5d3()) static LIST_HEAD(clocks); static DEFINE_SPINLOCK(clk_lock); @@ -210,10 +218,26 @@ struct clk mck = { static void pmc_periph_mode(struct clk *clk, int is_on) { - if (is_on) - at91_pmc_write(AT91_PMC_PCER, clk->pmc_mask); - else - at91_pmc_write(AT91_PMC_PCDR, clk->pmc_mask); + u32 regval = 0; + + /* + * With sama5d3 devices, we are managing clock division so we have to + * use the Peripheral Control Register introduced from at91sam9x5 + * devices. + */ + if (cpu_is_sama5d3()) { + regval |= AT91_PMC_PCR_CMD; /* write command */ + regval |= clk->pid & AT91_PMC_PCR_PID; /* peripheral selection */ + regval |= AT91_PMC_PCR_DIV(clk->div); + if (is_on) + regval |= AT91_PMC_PCR_EN; /* enable clock */ + at91_pmc_write(AT91_PMC_PCR, regval); + } else { + if (is_on) + at91_pmc_write(AT91_PMC_PCER, clk->pmc_mask); + else + at91_pmc_write(AT91_PMC_PCDR, clk->pmc_mask); + } } static struct clk __init *at91_css_to_clk(unsigned long css) @@ -443,14 +467,18 @@ static void __init init_programmable_clock(struct clk *clk) static int at91_clk_show(struct seq_file *s, void *unused) { - u32 scsr, pcsr, uckr = 0, sr; + u32 scsr, pcsr, pcsr1 = 0, uckr = 0, sr; struct clk *clk; scsr = at91_pmc_read(AT91_PMC_SCSR); pcsr = at91_pmc_read(AT91_PMC_PCSR); + if (cpu_is_sama5d3()) + pcsr1 = at91_pmc_read(AT91_PMC_PCSR1); sr = at91_pmc_read(AT91_PMC_SR); seq_printf(s, "SCSR = %8x\n", scsr); seq_printf(s, "PCSR = %8x\n", pcsr); + if (cpu_is_sama5d3()) + seq_printf(s, "PCSR1 = %8x\n", pcsr1); seq_printf(s, "MOR = %8x\n", at91_pmc_read(AT91_CKGR_MOR)); seq_printf(s, "MCFR = %8x\n", at91_pmc_read(AT91_CKGR_MCFR)); seq_printf(s, "PLLA = %8x\n", at91_pmc_read(AT91_CKGR_PLLAR)); @@ -470,20 +498,30 @@ static int at91_clk_show(struct seq_file *s, void *unused) list_for_each_entry(clk, &clocks, node) { char *state; - if (clk->mode == pmc_sys_mode) + if (clk->mode == pmc_sys_mode) { state = (scsr & clk->pmc_mask) ? "on" : "off"; - else if (clk->mode == pmc_periph_mode) - state = (pcsr & clk->pmc_mask) ? "on" : "off"; - else if (clk->mode == pmc_uckr_mode) + } else if (clk->mode == pmc_periph_mode) { + if (cpu_is_sama5d3()) { + u32 pmc_mask = 1 << (clk->pid % 32); + + if (clk->pid > 31) + state = (pcsr1 & pmc_mask) ? "on" : "off"; + else + state = (pcsr & pmc_mask) ? "on" : "off"; + } else { + state = (pcsr & clk->pmc_mask) ? "on" : "off"; + } + } else if (clk->mode == pmc_uckr_mode) { state = (uckr & clk->pmc_mask) ? "on" : "off"; - else if (clk->pmc_mask) + } else if (clk->pmc_mask) { state = (sr & clk->pmc_mask) ? "on" : "off"; - else if (clk == &clk32k || clk == &main_clk) + } else if (clk == &clk32k || clk == &main_clk) { state = "on"; - else + } else { state = ""; + } - seq_printf(s, "%-10s users=%2d %-3s %9ld Hz %s\n", + seq_printf(s, "%-10s users=%2d %-3s %9lu Hz %s\n", clk->name, clk->users, state, clk_get_rate(clk), clk->parent ? clk->parent->name : ""); } @@ -530,6 +568,9 @@ int __init clk_register(struct clk *clk) if (clk_is_peripheral(clk)) { if (!clk->parent) clk->parent = &mck; + if (cpu_is_sama5d3()) + clk->rate_hz = DIV_ROUND_UP(clk->parent->rate_hz, + 1 << clk->div); clk->mode = pmc_periph_mode; } else if (clk_is_sys(clk)) { @@ -555,7 +596,11 @@ static u32 __init at91_pll_rate(struct clk *pll, u32 freq, u32 reg) unsigned mul, div; div = reg & 0xff; - mul = (reg >> 16) & 0x7ff; + if (cpu_is_sama5d3()) + mul = AT91_PMC3_MUL_GET(reg); + else + mul = AT91_PMC_MUL_GET(reg); + if (div && mul) { freq /= div; freq *= mul + 1; @@ -706,12 +751,15 @@ static int __init at91_pmc_init(unsigned long main_clock) /* report if PLLA is more than mildly overclocked */ plla.rate_hz = at91_pll_rate(&plla, main_clock, at91_pmc_read(AT91_CKGR_PLLAR)); - if (cpu_has_300M_plla()) { - if (plla.rate_hz > 300000000) + if (cpu_has_1056M_plla()) { + if (plla.rate_hz > 1056000000) pll_overclock = true; } else if (cpu_has_800M_plla()) { if (plla.rate_hz > 800000000) pll_overclock = true; + } else if (cpu_has_300M_plla()) { + if (plla.rate_hz > 300000000) + pll_overclock = true; } else if (cpu_has_240M_plla()) { if (plla.rate_hz > 240000000) pll_overclock = true; @@ -872,6 +920,7 @@ int __init at91_clock_init(unsigned long main_clock) static int __init at91_clock_reset(void) { unsigned long pcdr = 0; + unsigned long pcdr1 = 0; unsigned long scdr = 0; struct clk *clk; @@ -879,8 +928,17 @@ static int __init at91_clock_reset(void) if (clk->users > 0) continue; - if (clk->mode == pmc_periph_mode) - pcdr |= clk->pmc_mask; + if (clk->mode == pmc_periph_mode) { + if (cpu_is_sama5d3()) { + u32 pmc_mask = 1 << (clk->pid % 32); + + if (clk->pid > 31) + pcdr1 |= pmc_mask; + else + pcdr |= pmc_mask; + } else + pcdr |= clk->pmc_mask; + } if (clk->mode == pmc_sys_mode) scdr |= clk->pmc_mask; @@ -888,8 +946,9 @@ static int __init at91_clock_reset(void) pr_debug("Clocks: disable unused %s\n", clk->name); } - at91_pmc_write(AT91_PMC_PCDR, pcdr); at91_pmc_write(AT91_PMC_SCDR, scdr); + if (cpu_is_sama5d3()) + at91_pmc_write(AT91_PMC_PCDR1, pcdr1); return 0; } diff --git a/arch/arm/mach-at91/clock.h b/arch/arm/mach-at91/clock.h index c2e63e4..a98a39b 100644 --- a/arch/arm/mach-at91/clock.h +++ b/arch/arm/mach-at91/clock.h @@ -20,7 +20,9 @@ struct clk { const char *name; /* unique clock name */ struct clk_lookup cl; unsigned long rate_hz; + unsigned div; /* parent clock divider */ struct clk *parent; + unsigned pid; /* peripheral ID */ u32 pmc_mask; void (*mode)(struct clk *, int); unsigned id:3; /* PCK0..4, or 32k/main/a/b */ diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h index ea2c57a..31df120 100644 --- a/arch/arm/mach-at91/include/mach/at91_pmc.h +++ b/arch/arm/mach-at91/include/mach/at91_pmc.h @@ -75,6 +75,9 @@ extern void __iomem *at91_pmc_base; #define AT91_PMC_PLLCOUNT (0x3f << 8) /* PLL Counter */ #define AT91_PMC_OUT (3 << 14) /* PLL Clock Frequency Range */ #define AT91_PMC_MUL (0x7ff << 16) /* PLL Multiplier */ +#define AT91_PMC_MUL_GET(n) ((n) >> 16 & 0x7ff) +#define AT91_PMC3_MUL (0x7f << 18) /* PLL Multiplier [SAMA5 only] */ +#define AT91_PMC3_MUL_GET(n) ((n) >> 18 & 0x7f) #define AT91_PMC_USBDIV (3 << 28) /* USB Divisor (PLLB only) */ #define AT91_PMC_USBDIV_1 (0 << 28) #define AT91_PMC_USBDIV_2 (1 << 28) @@ -167,11 +170,18 @@ extern void __iomem *at91_pmc_base; #define AT91_PMC_WPVS (0x1 << 0) /* Write Protect Violation Status */ #define AT91_PMC_WPVSRC (0xffff << 8) /* Write Protect Violation Source */ -#define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9] */ +#define AT91_PMC_PCER1 0x100 /* Peripheral Clock Enable Register 1 [SAMA5 only]*/ +#define AT91_PMC_PCDR1 0x104 /* Peripheral Clock Enable Register 1 */ +#define AT91_PMC_PCSR1 0x108 /* Peripheral Clock Enable Register 1 */ + +#define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9 and SAMA5] */ #define AT91_PMC_PCR_PID (0x3f << 0) /* Peripheral ID */ -#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command */ -#define AT91_PMC_PCR_DIV (0x3 << 16) /* Divisor Value */ -#define AT91_PMC_PCRDIV(n) (((n) << 16) & AT91_PMC_PCR_DIV) +#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ +#define AT91_PMC_PCR_DIV(n) ((n) << 16) /* Divisor Value */ +#define AT91_PMC_PCR_DIV0 0x0 /* Peripheral clock is MCK */ +#define AT91_PMC_PCR_DIV2 0x2 /* Peripheral clock is MCK/2 */ +#define AT91_PMC_PCR_DIV4 0x4 /* Peripheral clock is MCK/4 */ +#define AT91_PMC_PCR_DIV8 0x8 /* Peripheral clock is MCK/8 */ #define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ #endif diff --git a/arch/arm/mach-at91/include/mach/cpu.h b/arch/arm/mach-at91/include/mach/cpu.h index b6504c1..0f3379f 100644 --- a/arch/arm/mach-at91/include/mach/cpu.h +++ b/arch/arm/mach-at91/include/mach/cpu.h @@ -36,6 +36,8 @@ #define ARCH_ID_AT91M40807 0x14080745 #define ARCH_ID_AT91R40008 0x44000840 +#define ARCH_ID_SAMA5D3 0x8A5C07C0 + #define ARCH_EXID_AT91SAM9M11 0x00000001 #define ARCH_EXID_AT91SAM9M10 0x00000002 #define ARCH_EXID_AT91SAM9G46 0x00000003 @@ -47,6 +49,11 @@ #define ARCH_EXID_AT91SAM9G25 0x00000003 #define ARCH_EXID_AT91SAM9X25 0x00000004 +#define ARCH_EXID_SAMA5D31 0x00444300 +#define ARCH_EXID_SAMA5D33 0x00414300 +#define ARCH_EXID_SAMA5D34 0x00414301 +#define ARCH_EXID_SAMA5D35 0x00584300 + #define ARCH_FAMILY_AT91X92 0x09200000 #define ARCH_FAMILY_AT91SAM9 0x01900000 #define ARCH_FAMILY_AT91SAM9XE 0x02900000 @@ -75,6 +82,9 @@ enum at91_soc_type { /* SAM9N12 */ AT91_SOC_SAM9N12, + /* SAMA5D3 */ + AT91_SOC_SAMA5D3, + /* Unknown type */ AT91_SOC_NONE }; @@ -93,6 +103,10 @@ enum at91_soc_subtype { AT91_SOC_SAM9G15, AT91_SOC_SAM9G35, AT91_SOC_SAM9X35, AT91_SOC_SAM9G25, AT91_SOC_SAM9X25, + /* SAMA5D3 */ + AT91_SOC_SAMA5D31, AT91_SOC_SAMA5D33, AT91_SOC_SAMA5D34, + AT91_SOC_SAMA5D35, + /* Unknown subtype */ AT91_SOC_SUBTYPE_NONE }; @@ -187,6 +201,12 @@ static inline int at91_soc_is_detected(void) #define cpu_is_at91sam9n12() (0) #endif +#ifdef CONFIG_SOC_SAMA5D3 +#define cpu_is_sama5d3() (at91_soc_initdata.type == AT91_SOC_SAMA5D3) +#else +#define cpu_is_sama5d3() (0) +#endif + /* * Since this is ARM, we will never run on any AVR32 CPU. But these * definitions may reduce clutter in common drivers. diff --git a/arch/arm/mach-at91/include/mach/sama5d3.h b/arch/arm/mach-at91/include/mach/sama5d3.h new file mode 100644 index 0000000..6dc81ee --- /dev/null +++ b/arch/arm/mach-at91/include/mach/sama5d3.h @@ -0,0 +1,73 @@ +/* + * Chip-specific header file for the SAMA5D3 family + * + * Copyright (C) 2013 Atmel, + * 2013 Ludovic Desroches + * + * Common definitions. + * Based on SAMA5D3 datasheet. + * + * Licensed under GPLv2 or later. + */ + +#ifndef SAMA5D3_H +#define SAMA5D3_H + +/* + * Peripheral identifiers/interrupts. + */ +#define AT91_ID_FIQ 0 /* Advanced Interrupt Controller (FIQ) */ +#define AT91_ID_SYS 1 /* System Peripherals */ +#define SAMA5D3_ID_DBGU 2 /* debug Unit (usually no special interrupt line) */ +#define AT91_ID_PIT 3 /* PIT */ +#define SAMA5D3_ID_WDT 4 /* Watchdog Timer Interrupt */ +#define SAMA5D3_ID_HSMC 5 /* Static Memory Controller */ +#define SAMA5D3_ID_PIOA 6 /* PIOA */ +#define SAMA5D3_ID_PIOB 7 /* PIOB */ +#define SAMA5D3_ID_PIOC 8 /* PIOC */ +#define SAMA5D3_ID_PIOD 9 /* PIOD */ +#define SAMA5D3_ID_PIOE 10 /* PIOE */ +#define SAMA5D3_ID_SMD 11 /* SMD Soft Modem */ +#define SAMA5D3_ID_USART0 12 /* USART0 */ +#define SAMA5D3_ID_USART1 13 /* USART1 */ +#define SAMA5D3_ID_USART2 14 /* USART2 */ +#define SAMA5D3_ID_USART3 15 /* USART3 */ +#define SAMA5D3_ID_UART0 16 /* UART 0 */ +#define SAMA5D3_ID_UART1 17 /* UART 1 */ +#define SAMA5D3_ID_TWI0 18 /* Two-Wire Interface 0 */ +#define SAMA5D3_ID_TWI1 19 /* Two-Wire Interface 1 */ +#define SAMA5D3_ID_TWI2 20 /* Two-Wire Interface 2 */ +#define SAMA5D3_ID_HSMCI0 21 /* MCI */ +#define SAMA5D3_ID_HSMCI1 22 /* MCI */ +#define SAMA5D3_ID_HSMCI2 23 /* MCI */ +#define SAMA5D3_ID_SPI0 24 /* Serial Peripheral Interface 0 */ +#define SAMA5D3_ID_SPI1 25 /* Serial Peripheral Interface 1 */ +#define SAMA5D3_ID_TC0 26 /* Timer Counter 0 */ +#define SAMA5D3_ID_TC1 27 /* Timer Counter 2 */ +#define SAMA5D3_ID_PWM 28 /* Pulse Width Modulation Controller */ +#define SAMA5D3_ID_ADC 29 /* Touch Screen ADC Controller */ +#define SAMA5D3_ID_DMA0 30 /* DMA Controller 0 */ +#define SAMA5D3_ID_DMA1 31 /* DMA Controller 1 */ +#define SAMA5D3_ID_UHPHS 32 /* USB Host High Speed */ +#define SAMA5D3_ID_UDPHS 33 /* USB Device High Speed */ +#define SAMA5D3_ID_GMAC 34 /* Gigabit Ethernet MAC */ +#define SAMA5D3_ID_EMAC 35 /* Ethernet MAC */ +#define SAMA5D3_ID_LCDC 36 /* LCD Controller */ +#define SAMA5D3_ID_ISI 37 /* Image Sensor Interface */ +#define SAMA5D3_ID_SSC0 38 /* Synchronous Serial Controller 0 */ +#define SAMA5D3_ID_SSC1 39 /* Synchronous Serial Controller 1 */ +#define SAMA5D3_ID_CAN0 40 /* CAN Controller 0 */ +#define SAMA5D3_ID_CAN1 41 /* CAN Controller 1 */ +#define SAMA5D3_ID_SHA 42 /* Secure Hash Algorithm */ +#define SAMA5D3_ID_AES 43 /* Advanced Encryption Standard */ +#define SAMA5D3_ID_TDES 44 /* Triple Data Encryption Standard */ +#define SAMA5D3_ID_TRNG 45 /* True Random Generator Number */ +#define SAMA5D3_ID_IRQ0 47 /* Advanced Interrupt Controller (IRQ0) */ + +/* + * Internal Memory + */ +#define SAMA5D3_SRAM_BASE 0x00300000 /* Internal SRAM base address */ +#define SAMA5D3_SRAM_SIZE (128 * SZ_1K) /* Internal SRAM size (128Kb) */ + +#endif diff --git a/arch/arm/mach-at91/sama5d3.c b/arch/arm/mach-at91/sama5d3.c new file mode 100644 index 0000000..4012797 --- /dev/null +++ b/arch/arm/mach-at91/sama5d3.c @@ -0,0 +1,377 @@ +/* + * Chip-specific setup code for the SAMA5D3 family + * + * Copyright (C) 2013 Atmel, + * 2013 Ludovic Desroches + * + * Licensed under GPLv2 or later. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "soc.h" +#include "generic.h" +#include "clock.h" +#include "sam9_smc.h" + +/* -------------------------------------------------------------------- + * Clocks + * -------------------------------------------------------------------- */ + +/* + * The peripheral clocks. + */ + +static struct clk pioA_clk = { + .name = "pioA_clk", + .pid = SAMA5D3_ID_PIOA, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioB_clk = { + .name = "pioB_clk", + .pid = SAMA5D3_ID_PIOB, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioC_clk = { + .name = "pioC_clk", + .pid = SAMA5D3_ID_PIOC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioD_clk = { + .name = "pioD_clk", + .pid = SAMA5D3_ID_PIOD, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioE_clk = { + .name = "pioE_clk", + .pid = SAMA5D3_ID_PIOE, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart0_clk = { + .name = "usart0_clk", + .pid = SAMA5D3_ID_USART0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk usart1_clk = { + .name = "usart1_clk", + .pid = SAMA5D3_ID_USART1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk usart2_clk = { + .name = "usart2_clk", + .pid = SAMA5D3_ID_USART2, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk usart3_clk = { + .name = "usart3_clk", + .pid = SAMA5D3_ID_USART3, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk uart0_clk = { + .name = "uart0_clk", + .pid = SAMA5D3_ID_UART0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk uart1_clk = { + .name = "uart1_clk", + .pid = SAMA5D3_ID_UART1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk twi0_clk = { + .name = "twi0_clk", + .pid = SAMA5D3_ID_TWI0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk twi1_clk = { + .name = "twi1_clk", + .pid = SAMA5D3_ID_TWI1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk twi2_clk = { + .name = "twi2_clk", + .pid = SAMA5D3_ID_TWI2, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk mmc0_clk = { + .name = "mci0_clk", + .pid = SAMA5D3_ID_HSMCI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc1_clk = { + .name = "mci1_clk", + .pid = SAMA5D3_ID_HSMCI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc2_clk = { + .name = "mci2_clk", + .pid = SAMA5D3_ID_HSMCI2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi0_clk = { + .name = "spi0_clk", + .pid = SAMA5D3_ID_SPI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi1_clk = { + .name = "spi1_clk", + .pid = SAMA5D3_ID_SPI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tcb0_clk = { + .name = "tcb0_clk", + .pid = SAMA5D3_ID_TC0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk tcb1_clk = { + .name = "tcb1_clk", + .pid = SAMA5D3_ID_TC1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk adc_clk = { + .name = "adc_clk", + .pid = SAMA5D3_ID_ADC, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk adc_op_clk = { + .name = "adc_op_clk", + .type = CLK_TYPE_PERIPHERAL, + .rate_hz = 5000000, +}; +static struct clk dma0_clk = { + .name = "dma0_clk", + .pid = SAMA5D3_ID_DMA0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk dma1_clk = { + .name = "dma1_clk", + .pid = SAMA5D3_ID_DMA1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk uhphs_clk = { + .name = "uhphs", + .pid = SAMA5D3_ID_UHPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk udphs_clk = { + .name = "udphs_clk", + .pid = SAMA5D3_ID_UDPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +/* gmac only for sama5d33, sama5d34, sama5d35 */ +static struct clk macb0_clk = { + .name = "macb0_clk", + .pid = SAMA5D3_ID_GMAC, + .type = CLK_TYPE_PERIPHERAL, +}; +/* emac only for sama5d31, sama5d35 */ +static struct clk macb1_clk = { + .name = "macb1_clk", + .pid = SAMA5D3_ID_EMAC, + .type = CLK_TYPE_PERIPHERAL, +}; +/* lcd only for sama5d31, sama5d33, sama5d34 */ +static struct clk lcdc_clk = { + .name = "lcdc_clk", + .pid = SAMA5D3_ID_LCDC, + .type = CLK_TYPE_PERIPHERAL, +}; +/* isi only for sama5d33, sama5d35 */ +static struct clk isi_clk = { + .name = "isi_clk", + .pid = SAMA5D3_ID_ISI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk can0_clk = { + .name = "can0_clk", + .pid = SAMA5D3_ID_CAN0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk can1_clk = { + .name = "can1_clk", + .pid = SAMA5D3_ID_CAN1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pid = SAMA5D3_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pid = SAMA5D3_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV2, +}; +static struct clk sha_clk = { + .name = "sha_clk", + .pid = SAMA5D3_ID_SHA, + .type = CLK_TYPE_PERIPHERAL, + .div = AT91_PMC_PCR_DIV8, +}; +static struct clk aes_clk = { + .name = "aes_clk", + .pid = SAMA5D3_ID_AES, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tdes_clk = { + .name = "tdes_clk", + .pid = SAMA5D3_ID_TDES, + .type = CLK_TYPE_PERIPHERAL, +}; + +static struct clk *periph_clocks[] __initdata = { + &pioA_clk, + &pioB_clk, + &pioC_clk, + &pioD_clk, + &pioE_clk, + &usart0_clk, + &usart1_clk, + &usart2_clk, + &usart3_clk, + &uart0_clk, + &uart1_clk, + &twi0_clk, + &twi1_clk, + &twi2_clk, + &mmc0_clk, + &mmc1_clk, + &mmc2_clk, + &spi0_clk, + &spi1_clk, + &tcb0_clk, + &tcb1_clk, + &adc_clk, + &adc_op_clk, + &dma0_clk, + &dma1_clk, + &uhphs_clk, + &udphs_clk, + &macb0_clk, + &macb1_clk, + &lcdc_clk, + &isi_clk, + &can0_clk, + &can1_clk, + &ssc0_clk, + &ssc1_clk, + &sha_clk, + &aes_clk, + &tdes_clk, +}; + +static struct clk pck0 = { + .name = "pck0", + .pmc_mask = AT91_PMC_PCK0, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 0, +}; + +static struct clk pck1 = { + .name = "pck1", + .pmc_mask = AT91_PMC_PCK1, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 1, +}; + +static struct clk pck2 = { + .name = "pck2", + .pmc_mask = AT91_PMC_PCK2, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 2, +}; + +static struct clk_lookup periph_clocks_lookups[] = { + /* lookup table for DT entries */ + CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck), + CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioB_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioC_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioD_clk), + CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioE_clk), + CLKDEV_CON_DEV_ID("usart", "f001c000.serial", &usart0_clk), + CLKDEV_CON_DEV_ID("usart", "f0020000.serial", &usart1_clk), + CLKDEV_CON_DEV_ID("usart", "f8020000.serial", &usart2_clk), + CLKDEV_CON_DEV_ID("usart", "f8024000.serial", &usart3_clk), + CLKDEV_CON_DEV_ID(NULL, "f0014000.i2c", &twi0_clk), + CLKDEV_CON_DEV_ID(NULL, "f0018000.i2c", &twi1_clk), + CLKDEV_CON_DEV_ID(NULL, "f801c000.i2c", &twi2_clk), + CLKDEV_CON_DEV_ID("mci_clk", "f0000000.mmc", &mmc0_clk), + CLKDEV_CON_DEV_ID("mci_clk", "f8000000.mmc", &mmc1_clk), + CLKDEV_CON_DEV_ID("mci_clk", "f8004000.mmc", &mmc2_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f0004000.spi", &spi0_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f8008000.spi", &spi1_clk), + CLKDEV_CON_DEV_ID("t0_clk", "f0010000.timer", &tcb0_clk), + CLKDEV_CON_DEV_ID("t0_clk", "f8014000.timer", &tcb1_clk), + CLKDEV_CON_DEV_ID("tsc_clk", "f8018000.tsadcc", &adc_clk), + CLKDEV_CON_DEV_ID("dma_clk", "ffffe600.dma-controller", &dma0_clk), + CLKDEV_CON_DEV_ID("dma_clk", "ffffe800.dma-controller", &dma1_clk), + CLKDEV_CON_DEV_ID("hclk", "600000.ohci", &uhphs_clk), + CLKDEV_CON_DEV_ID("ohci_clk", "600000.ohci", &uhphs_clk), + CLKDEV_CON_DEV_ID("ehci_clk", "700000.ehci", &uhphs_clk), + CLKDEV_CON_DEV_ID("pclk", "500000.gadget", &udphs_clk), + CLKDEV_CON_DEV_ID("hclk", "500000.gadget", &utmi_clk), + CLKDEV_CON_DEV_ID("hclk", "f0028000.ethernet", &macb0_clk), + CLKDEV_CON_DEV_ID("pclk", "f0028000.ethernet", &macb0_clk), + CLKDEV_CON_DEV_ID("hclk", "f802c000.ethernet", &macb1_clk), + CLKDEV_CON_DEV_ID("pclk", "f802c000.ethernet", &macb1_clk), + CLKDEV_CON_DEV_ID("pclk", "f0008000.ssc", &ssc0_clk), + CLKDEV_CON_DEV_ID("pclk", "f000c000.ssc", &ssc1_clk), + CLKDEV_CON_DEV_ID("can_clk", "f000c000.can", &can0_clk), + CLKDEV_CON_DEV_ID("can_clk", "f8010000.can", &can1_clk), + CLKDEV_CON_DEV_ID("sha_clk", "f8034000.sha", &sha_clk), + CLKDEV_CON_DEV_ID("aes_clk", "f8038000.aes", &aes_clk), + CLKDEV_CON_DEV_ID("tdes_clk", "f803c000.tdes", &tdes_clk), +}; + +static void __init sama5d3_register_clocks(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) + clk_register(periph_clocks[i]); + + clkdev_add_table(periph_clocks_lookups, + ARRAY_SIZE(periph_clocks_lookups)); + + clk_register(&pck0); + clk_register(&pck1); + clk_register(&pck2); +} + +/* -------------------------------------------------------------------- + * AT91SAM9x5 processor initialization + * -------------------------------------------------------------------- */ + +static void __init sama5d3_map_io(void) +{ + at91_init_sram(0, SAMA5D3_SRAM_BASE, SAMA5D3_SRAM_SIZE); +} + +AT91_SOC_START(sama5d3) + .map_io = sama5d3_map_io, + .register_clocks = sama5d3_register_clocks, +AT91_SOC_END diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 4b67847..2ecd169 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -151,6 +151,11 @@ static void __init soc_detect(u32 dbgu_base) at91_soc_initdata.type = AT91_SOC_SAM9N12; at91_boot_soc = at91sam9n12_soc; break; + + case ARCH_ID_SAMA5D3: + at91_soc_initdata.type = AT91_SOC_SAMA5D3; + at91_boot_soc = sama5d3_soc; + break; } /* at91sam9g10 */ @@ -206,6 +211,23 @@ static void __init soc_detect(u32 dbgu_base) break; } } + + if (at91_soc_initdata.type == AT91_SOC_SAMA5D3) { + switch (at91_soc_initdata.exid) { + case ARCH_EXID_SAMA5D31: + at91_soc_initdata.subtype = AT91_SOC_SAMA5D31; + break; + case ARCH_EXID_SAMA5D33: + at91_soc_initdata.subtype = AT91_SOC_SAMA5D33; + break; + case ARCH_EXID_SAMA5D34: + at91_soc_initdata.subtype = AT91_SOC_SAMA5D34; + break; + case ARCH_EXID_SAMA5D35: + at91_soc_initdata.subtype = AT91_SOC_SAMA5D35; + break; + } + } } static const char *soc_name[] = { @@ -219,6 +241,7 @@ static const char *soc_name[] = { [AT91_SOC_SAM9RL] = "at91sam9rl", [AT91_SOC_SAM9X5] = "at91sam9x5", [AT91_SOC_SAM9N12] = "at91sam9n12", + [AT91_SOC_SAMA5D3] = "sama5d3", [AT91_SOC_NONE] = "Unknown" }; @@ -241,6 +264,10 @@ static const char *soc_subtype_name[] = { [AT91_SOC_SAM9X35] = "at91sam9x35", [AT91_SOC_SAM9G25] = "at91sam9g25", [AT91_SOC_SAM9X25] = "at91sam9x25", + [AT91_SOC_SAMA5D31] = "sama5d31", + [AT91_SOC_SAMA5D33] = "sama5d33", + [AT91_SOC_SAMA5D34] = "sama5d34", + [AT91_SOC_SAMA5D35] = "sama5d35", [AT91_SOC_SUBTYPE_NONE] = "Unknown" }; diff --git a/arch/arm/mach-at91/soc.h b/arch/arm/mach-at91/soc.h index f3d3502..43a225f 100644 --- a/arch/arm/mach-at91/soc.h +++ b/arch/arm/mach-at91/soc.h @@ -22,6 +22,7 @@ extern struct at91_init_soc at91sam9g45_soc; extern struct at91_init_soc at91sam9rl_soc; extern struct at91_init_soc at91sam9x5_soc; extern struct at91_init_soc at91sam9n12_soc; +extern struct at91_init_soc sama5d3_soc; #define AT91_SOC_START(_name) \ struct at91_init_soc __initdata _name##_soc \ @@ -68,3 +69,7 @@ static inline int at91_soc_is_enabled(void) #if !defined(CONFIG_SOC_AT91SAM9N12) #define at91sam9n12_soc at91_boot_soc #endif + +#if !defined(CONFIG_SOC_SAMA5D3) +#define sama5d3_soc at91_boot_soc +#endif