diff options
| -rw-r--r-- | arch/arm/Kconfig.debug | 9 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 4 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/pm-rcar-gen2.c | 33 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-rcar-gen2.c | 21 |
4 files changed, 52 insertions, 15 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 447629d..003502e 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -896,12 +896,13 @@ choice via SCIF2 on Renesas R-Car H1 (R8A7779). config DEBUG_RCAR_GEN2_SCIF0 - bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7792/R8A7793" - depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793 + bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1" + depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \ + ARCH_R8A7792 || ARCH_R8A7793 help Say Y here if you want kernel low-level debugging support - via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), V2H - (R8A7792), or M2-N (R8A7793). + via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790), + M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793). config DEBUG_RCAR_GEN2_SCIF2 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index ad7d604..280e731 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -1,9 +1,6 @@ config ARCH_SHMOBILE bool -config ARCH_SHMOBILE_MULTI - bool - config PM_RMOBILE bool select PM @@ -34,7 +31,6 @@ menuconfig ARCH_RENESAS depends on ARCH_MULTI_V7 && MMU select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE select ARCH_SHMOBILE - select ARCH_SHMOBILE_MULTI select ARM_GIC select GPIOLIB select HAVE_ARM_SCU if SMP diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c index 0178da7..e5f215c 100644 --- a/arch/arm/mach-shmobile/pm-rcar-gen2.c +++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c @@ -11,7 +11,9 @@ */ #include <linux/kernel.h> +#include <linux/ioport.h> #include <linux/of.h> +#include <linux/of_address.h> #include <linux/smp.h> #include <linux/soc/renesas/rcar-sysc.h> #include <asm/io.h> @@ -69,8 +71,9 @@ void __init rcar_gen2_pm_init(void) struct device_node *np, *cpus; bool has_a7 = false; bool has_a15 = false; - phys_addr_t boot_vector_addr = ICRAM1; + struct resource res; u32 syscier = 0; + int error; if (once++) return; @@ -91,14 +94,38 @@ void __init rcar_gen2_pm_init(void) else if (of_machine_is_compatible("renesas,r8a7791")) syscier = 0x00111003; + np = of_find_compatible_node(NULL, NULL, "renesas,smp-sram"); + if (!np) { + /* No smp-sram in DT, fall back to hardcoded address */ + res = (struct resource)DEFINE_RES_MEM(ICRAM1, + shmobile_boot_size); + goto map; + } + + error = of_address_to_resource(np, 0, &res); + if (error) { + pr_err("Failed to get smp-sram address: %d\n", error); + return; + } + +map: /* RAM for jump stub, because BAR requires 256KB aligned address */ - p = ioremap_nocache(boot_vector_addr, shmobile_boot_size); + if (res.start & (256 * 1024 - 1) || + resource_size(&res) < shmobile_boot_size) { + pr_err("Invalid smp-sram region\n"); + return; + } + + p = ioremap(res.start, resource_size(&res)); + if (!p) + return; + memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size); iounmap(p); /* setup reset vectors */ p = ioremap_nocache(RST, 0x63); - bar = phys_to_sbar(boot_vector_addr); + bar = phys_to_sbar(res.start); if (has_a15) { writel_relaxed(bar, p + CA15BAR); writel_relaxed(bar | SBAR_BAREN, p + CA15BAR); diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c index a6e74f4..7ab1690 100644 --- a/arch/arm/mach-shmobile/setup-rcar-gen2.c +++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c @@ -29,17 +29,29 @@ #include "common.h" #include "rcar-gen2.h" +static const struct of_device_id cpg_matches[] __initconst = { + { .compatible = "renesas,rcar-gen2-cpg-clocks", }, + { .compatible = "renesas,r8a7743-cpg-mssr", .data = "extal" }, + { .compatible = "renesas,r8a7790-cpg-mssr", .data = "extal" }, + { .compatible = "renesas,r8a7791-cpg-mssr", .data = "extal" }, + { .compatible = "renesas,r8a7793-cpg-mssr", .data = "extal" }, + { /* sentinel */ } +}; + static unsigned int __init get_extal_freq(void) { + const struct of_device_id *match; struct device_node *cpg, *extal; u32 freq = 20000000; + int idx = 0; - cpg = of_find_compatible_node(NULL, NULL, - "renesas,rcar-gen2-cpg-clocks"); + cpg = of_find_matching_node_and_match(NULL, cpg_matches, &match); if (!cpg) return freq; - extal = of_parse_phandle(cpg, "clocks", 0); + if (match->data) + idx = of_property_match_string(cpg, "clock-names", match->data); + extal = of_parse_phandle(cpg, "clocks", idx); of_node_put(cpg); if (!extal) return freq; @@ -58,7 +70,8 @@ void __init rcar_gen2_timer_init(void) void __iomem *base; u32 freq; - if (of_machine_is_compatible("renesas,r8a7792") || + if (of_machine_is_compatible("renesas,r8a7745") || + of_machine_is_compatible("renesas,r8a7792") || of_machine_is_compatible("renesas,r8a7794")) { freq = 260000000 / 8; /* ZS / 8 */ /* CNTVOFF has to be initialized either from non-secure |
